.rs-top{
  --bg:#050b1f;
  --bg2:#0a1536;
  --blue:#2f5bff;
  --blue2:#6f8dff;
  --yellow:#ffd60a;
  --text:#eef2ff;
  --muted:#9aa7cf;
  --glass:rgba(255,255,255,.05);
  --line:rgba(255,255,255,.12);
}.rs-top *,.rs-top *::before,.rs-top *::after{box-sizing:border-box;margin:0;padding:0}.rs-top{scroll-behavior:smooth}.rs-top{font-family:"Noto Sans JP",sans-serif;background:var(--bg);color:var(--text);line-height:1.8;overflow-x:hidden}.rs-top a{color:inherit;text-decoration:none}.rs-top .wrap{max-width:1160px;margin:0 auto;padding:0 24px}.rs-top .en{font-family:"Space Grotesk",sans-serif}.rs-top /* header */
header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(5,11,31,.6);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.rs-top .hd{display:flex;align-items:center;justify-content:space-between;height:70px}.rs-top .logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:19px;letter-spacing:.02em}.rs-top .logo i{width:30px;height:30px;border-radius:9px;background:conic-gradient(from 210deg,var(--blue),var(--yellow),var(--blue));display:block;box-shadow:0 0 22px rgba(47,91,255,.7)}.rs-top nav{display:flex;gap:34px;font-size:13.5px;font-weight:500;color:var(--muted)}.rs-top nav a{transition:.2s}.rs-top nav a:hover{color:var(--yellow)}.rs-top .btn{display:inline-flex;align-items:center;gap:8px;padding:12px 26px;border-radius:999px;font-weight:700;font-size:14px;transition:.25s;border:1px solid transparent}.rs-top .btn-y{background:var(--yellow);color:#0a1536;box-shadow:0 0 0 rgba(255,214,10,0)}.rs-top .btn-y:hover{transform:translateY(-2px);box-shadow:0 10px 36px rgba(255,214,10,.45)}.rs-top .btn-g{border-color:var(--line);background:var(--glass);color:var(--text)}.rs-top .btn-g:hover{border-color:var(--blue2);background:rgba(47,91,255,.18)}.rs-top .btn-lg{padding:17px 36px;font-size:15.5px}.rs-top /* hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:120px 0 80px;overflow:hidden}.rs-top .hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(600px 500px at 78% 30%,rgba(47,91,255,.55),transparent 70%),
  radial-gradient(420px 380px at 90% 85%,rgba(255,214,10,.28),transparent 70%),
  radial-gradient(500px 400px at 5% 90%,rgba(47,91,255,.25),transparent 70%)}.rs-top .grid{position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:64px 64px;opacity:.35;mask-image:radial-gradient(ellipse at 60% 40%,#000 20%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse at 60% 40%,#000 20%,transparent 75%)}.rs-top .hero-in{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}.rs-top .chip{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--line);background:var(--glass);padding:7px 16px;border-radius:999px;font-size:12.5px;color:var(--muted);margin-bottom:28px}.rs-top .chip b{width:8px;height:8px;border-radius:50%;background:var(--yellow);box-shadow:0 0 12px var(--yellow);animation:pulse 2s infinite}@keyframes pulse{50%{opacity:.35}}.rs-top h1{font-size:clamp(38px,6vw,76px);line-height:1.15;font-weight:900;letter-spacing:-.01em;margin-bottom:26px}.rs-top h1 .y{color:var(--yellow)}.rs-top h1 .g{background:linear-gradient(90deg,var(--blue2),#fff);-webkit-background-clip:text;background-clip:text;color:transparent}.rs-top .lead{color:var(--muted);font-size:16.5px;max-width:500px;margin-bottom:38px}.rs-top .cta{display:flex;gap:14px;flex-wrap:wrap}.rs-top /* hero card */
.stage{position:relative;height:430px}.rs-top .glass{position:absolute;border:1px solid var(--line);background:linear-gradient(145deg,rgba(255,255,255,.12),rgba(255,255,255,.03));backdrop-filter:blur(18px);border-radius:24px;box-shadow:0 30px 80px rgba(0,0,0,.45)}.rs-top .g1{inset:30px 20px 70px 10px;padding:18px;animation:float 7s ease-in-out infinite}.rs-top .g1 .scr{height:68%;border-radius:16px;background:linear-gradient(135deg,var(--blue),#1a2f9a 60%,#0a1536);position:relative;overflow:hidden;display:grid;place-items:center}.rs-top .g1 .scr::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0 38px,rgba(255,255,255,.07) 38px 39px)}.rs-top .play{width:70px;height:70px;border-radius:50%;background:var(--yellow);display:grid;place-items:center;box-shadow:0 0 40px rgba(255,214,10,.6);position:relative}.rs-top .play::after{content:"";border-left:20px solid #0a1536;border-top:12px solid transparent;border-bottom:12px solid transparent;margin-left:6px}.rs-top .g1 h4{margin-top:16px;font-size:15px}.rs-top .g1 small{color:var(--muted);font-size:12px}.rs-top .prog{height:5px;border-radius:3px;background:rgba(255,255,255,.12);margin-top:12px;overflow:hidden}.rs-top .prog b{display:block;height:100%;width:64%;background:linear-gradient(90deg,var(--blue2),var(--yellow));border-radius:3px}.rs-top .g2{right:-6px;bottom:6px;width:190px;padding:16px 18px;animation:float 6s ease-in-out -2s infinite}.rs-top .g2 .n{font-size:34px;font-weight:700;color:var(--yellow);line-height:1.1}.rs-top .g2 span{font-size:12px;color:var(--muted)}.rs-top .g3{left:-18px;top:0;padding:10px 18px;border-radius:999px;font-size:13px;font-weight:700;animation:float 5s ease-in-out -1s infinite}@keyframes float{50%{transform:translateY(-14px)}}.rs-top /* marquee */
.mq{border-block:1px solid var(--line);overflow:hidden;background:rgba(255,255,255,.02)}.rs-top .mq-in{display:flex;gap:56px;white-space:nowrap;padding:18px 0;animation:mq 32s linear infinite;width:max-content;font-family:"Space Grotesk",sans-serif;font-size:18px;color:var(--muted);letter-spacing:.14em}.rs-top .mq-in span:nth-child(3n){color:var(--yellow)}@keyframes mq{to{transform:translateX(-50%)}}.rs-top /* sections */
section{padding:110px 0;position:relative}.rs-top .eyebrow{font-family:"Space Grotesk",sans-serif;color:var(--yellow);letter-spacing:.3em;font-size:12px;font-weight:700;margin-bottom:12px}.rs-top h2{font-size:clamp(28px,4vw,46px);font-weight:900;line-height:1.3;margin-bottom:16px}.rs-top .sub{color:var(--muted);max-width:560px;margin-bottom:50px}.rs-top /* bento */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}.rs-top .bx{border:1px solid var(--line);background:var(--glass);border-radius:24px;padding:34px 30px;position:relative;overflow:hidden;transition:.3s}.rs-top .bx:hover{border-color:var(--blue2);transform:translateY(-5px);box-shadow:0 20px 60px rgba(47,91,255,.25)}.rs-top .bx.a{grid-column:span 3;background:linear-gradient(145deg,rgba(47,91,255,.35),rgba(47,91,255,.05))}.rs-top .bx.b{grid-column:span 3}.rs-top .bx.c{grid-column:span 6;display:flex;justify-content:space-between;align-items:center;gap:30px;background:linear-gradient(100deg,rgba(255,214,10,.16),rgba(255,214,10,.02))}.rs-top .bx .ic{font-size:34px;margin-bottom:16px}.rs-top .bx h3{font-size:21px;margin-bottom:8px}.rs-top .bx p{color:var(--muted);font-size:14.5px}.rs-top .bx .num{font-family:"Space Grotesk",sans-serif;font-size:64px;font-weight:700;color:var(--yellow);line-height:1;white-space:nowrap}.rs-top /* categories */
.cats{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.rs-top .cat{border:1px solid var(--line);border-radius:26px;padding:40px 34px;background:var(--glass);display:flex;align-items:center;justify-content:space-between;gap:20px;transition:.3s;position:relative;overflow:hidden}.rs-top .cat::after{content:"";position:absolute;right:-60px;top:-60px;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle,rgba(47,91,255,.5),transparent 70%);transition:.4s}.rs-top .cat:nth-child(2)::after{background:radial-gradient(circle,rgba(255,214,10,.4),transparent 70%)}.rs-top .cat:hover{border-color:var(--yellow);transform:translateY(-4px)}.rs-top .cat:hover::after{transform:scale(1.5)}.rs-top .cat h3{font-size:23px;position:relative;z-index:1}.rs-top .cat small{color:var(--muted);position:relative;z-index:1;display:block;margin-top:4px}.rs-top .arr{width:52px;height:52px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;font-size:20px;position:relative;z-index:1;flex:none;transition:.3s}.rs-top .cat:hover .arr{background:var(--yellow);color:#0a1536;border-color:var(--yellow)}.rs-top /* courses */
.cg{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.rs-top .cs{border:1px solid var(--line);border-radius:22px;background:var(--glass);overflow:hidden;transition:.3s;display:flex;flex-direction:column}.rs-top .cs:hover{transform:translateY(-6px);border-color:var(--blue2);box-shadow:0 24px 60px rgba(47,91,255,.28)}.rs-top .th{aspect-ratio:16/9;position:relative;display:grid;place-items:center;font-size:46px;overflow:hidden}.rs-top .th::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,transparent 0 22px,rgba(255,255,255,.05) 22px 23px)}.rs-top .cs:nth-child(3n+1) .th{background:linear-gradient(135deg,#2f5bff,#10206b)}.rs-top .cs:nth-child(3n+2) .th{background:linear-gradient(135deg,#ffd60a,#c78a00)}.rs-top .cs:nth-child(3n) .th{background:linear-gradient(135deg,#5b7bff,#1a2f9a)}.rs-top .th span{position:relative}.rs-top .cs .tag{position:absolute;left:14px;top:14px;z-index:2;background:rgba(5,11,31,.75);backdrop-filter:blur(6px);border:1px solid var(--line);font-size:11.5px;font-weight:700;padding:4px 12px;border-radius:999px}.rs-top .cs .bd{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column;justify-content:space-between;gap:16px}.rs-top .cs h3{font-size:15px;line-height:1.65}.rs-top .cs .go{color:var(--yellow);font-size:13px;font-weight:700}.rs-top .more{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:50px}.rs-top /* flow */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.rs-top .fl{border-top:2px solid var(--line);padding-top:26px;position:relative}.rs-top .fl::before{content:"";position:absolute;top:-2px;left:0;width:60px;height:2px;background:var(--yellow);box-shadow:0 0 14px var(--yellow)}.rs-top .fl .no{font-family:"Space Grotesk",sans-serif;font-size:14px;color:var(--yellow);letter-spacing:.2em}.rs-top .fl h3{font-size:22px;margin:8px 0}.rs-top .fl p{color:var(--muted);font-size:14.5px}.rs-top /* closing */
.end{text-align:center;padding:130px 0;overflow:hidden}.rs-top .end::before{content:"";position:absolute;left:50%;top:50%;width:760px;height:760px;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(47,91,255,.5),transparent 65%)}.rs-top .end .wrap{position:relative}.rs-top .end h2{font-size:clamp(30px,5vw,58px)}.rs-top footer{border-top:1px solid var(--line);padding:46px 0 30px;font-size:13.5px;color:var(--muted)}.rs-top .ft{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;margin-bottom:26px}.rs-top .ft .logo{color:var(--text);margin-bottom:8px}.rs-top .ft ul{list-style:none;display:flex;gap:24px;flex-wrap:wrap}.rs-top .ft ul a:hover{color:var(--yellow)}.rs-top .copy{font-size:12px;text-align:center;border-top:1px solid var(--line);padding-top:20px}.rs-top /* reveal */
.rv{opacity:0;transform:translateY(28px);transition:opacity .8s,transform .8s}.rs-top .rv.on{opacity:1;transform:none}@media(max-width:900px){.rs-top nav{display:none}.rs-top .hero-in{grid-template-columns:1fr}.rs-top .stage{height:360px}.rs-top .bento,.rs-top .cats,.rs-top .cg,.rs-top .flow{grid-template-columns:1fr}.rs-top .bx.a,.rs-top .bx.b,.rs-top .bx.c{grid-column:span 1}.rs-top .bx.c{flex-direction:column;align-items:flex-start}.rs-top section{padding:76px 0}}
body.rs-front{background:#050b1f;margin:0}
.rs-top{background:var(--bg);color:var(--text);font-family:"Noto Sans JP",sans-serif;line-height:1.8;overflow-x:hidden}
.rs-top img{max-width:100%}
.admin-bar .rs-top header{top:32px}
@media(max-width:782px){.admin-bar .rs-top header{top:46px}}
.rs-top a:hover{opacity:1}
.rs-top .logo{font-family:"Space Grotesk","Noto Sans JP",sans-serif;font-weight:700;letter-spacing:.01em;font-size:21px}
.rs-top .cs .th img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.rs-top .mq-in{gap:20px;padding:22px 0;animation-duration:50s}
.rs-top .mqi{display:block;flex:none;height:120px;aspect-ratio:16/9;border-radius:14px;overflow:hidden;border:1px solid var(--line);transition:.3s;background:var(--bg2)}
.rs-top .mqi img{width:100%;height:100%;object-fit:cover;display:block}
.rs-top .mqi:hover{border-color:var(--yellow);transform:translateY(-3px);box-shadow:0 12px 30px rgba(47,91,255,.35)}
.rs-top .mq:hover .mq-in{animation-play-state:paused}

.rs-top .burger{display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--glass);border-radius:12px;cursor:pointer;padding:0;flex:none;position:relative}
.rs-top .burger span{position:absolute;left:12px;right:12px;height:2px;background:var(--text);border-radius:2px;transition:.25s}
.rs-top .burger span:nth-child(1){top:15px}.rs-top .burger span:nth-child(2){top:21px}.rs-top .burger span:nth-child(3){top:27px}
.rs-top header.open .burger span:nth-child(1){top:21px;transform:rotate(45deg)}
.rs-top header.open .burger span:nth-child(2){opacity:0}
.rs-top header.open .burger span:nth-child(3){top:21px;transform:rotate(-45deg)}
@media(max-width:900px){
  .rs-top .hd{gap:10px}
  .rs-top .hd>.btn{margin-left:auto;padding:10px 18px}
  .rs-top .burger{display:block!important}
  .rs-top header.open nav{display:flex;flex-direction:column;gap:0;position:absolute;top:70px;left:0;right:0;background:rgba(5,11,31,.97);backdrop-filter:blur(14px);border-bottom:1px solid var(--line);padding:8px 24px 18px;font-size:16px}
  .rs-top header.open nav a{padding:14px 0;border-bottom:1px solid var(--line);color:var(--text)}
}