:root{
  --bg:#080607; --bg2:#0f0b0c; --ink:#f6f3f1; --mut:#9a908c;
  --red:#ff2d3f; --red2:#ff5a55; --line:#241d1e;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Helvetica Neue","Hiragino Kaku Gothic ProN","Noto Sans JP",Meiryo,sans-serif;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;letter-spacing:.01em}
a{color:inherit;text-decoration:none}
::selection{background:var(--red);color:#fff}

/* ---- ステレオ音場(左右から波) ---- */
#stereo{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:0}

/* ---- カスタムカーソル ---- */
@media(pointer:fine){
  body,a,button,.track{cursor:none}
  #cdot{position:fixed;width:6px;height:6px;border-radius:50%;background:var(--red);z-index:200;pointer-events:none;transform:translate(-50%,-50%);transition:opacity .3s}
  #cring{position:fixed;width:36px;height:36px;border:1.5px solid rgba(255,45,63,.85);border-radius:50%;z-index:200;pointer-events:none;transform:translate(-50%,-50%);
    transition:width .28s cubic-bezier(.2,.7,.3,1.2),height .28s cubic-bezier(.2,.7,.3,1.2),background-color .28s,border-color .28s,opacity .3s;
    display:flex;align-items:center;justify-content:center}
  #cring::after{content:"";width:0;height:0;border-left:7px solid var(--red);border-top:4.5px solid transparent;border-bottom:4.5px solid transparent;margin-left:2px;opacity:0;transition:opacity .2s}
  #cring.grow{width:58px;height:58px;background:rgba(255,45,63,.1);border-color:var(--red)}
  #cring.play{width:52px;height:52px;background:rgba(255,45,63,.14);border-color:var(--red)}
  #cring.play::after{opacity:1}
  #cring.pressed{width:26px;height:26px}
}
#cdot,#cring{opacity:0}
body.cursor-on #cdot,body.cursor-on #cring{opacity:1}

/* ---- 質感: フィルムグレイン ---- */
#grain{position:fixed;inset:-50%;width:200%;height:200%;pointer-events:none;z-index:80;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
  animation:grain 7s steps(8) infinite}
@keyframes grain{0%,100%{transform:translate(0,0)}20%{transform:translate(-3%,2%)}40%{transform:translate(2%,-3%)}60%{transform:translate(-2%,-2%)}80%{transform:translate(3%,3%)}}

/* ---- 巨大ウォーターマーク ---- */
#wm{position:fixed;left:50%;top:40%;transform:translateX(-50%);z-index:0;pointer-events:none;
  font-weight:900;font-size:min(46vw,560px);line-height:1;color:transparent;
  -webkit-text-stroke:1.5px rgba(255,45,63,.05);user-select:none}

/* ---- 途切れない線 ---- */
#thread{position:absolute;top:0;left:0;width:100%;pointer-events:none;z-index:1;overflow:visible}
#thread path{stroke:var(--red);stroke-width:2.5;fill:none;opacity:.85;filter:drop-shadow(0 0 6px rgba(255,45,63,.55))}

/* ---- クリック波紋 ---- */
.ripple{position:fixed;border:1.5px solid var(--red);border-radius:50%;pointer-events:none;z-index:99;
  opacity:0;transform:translate(-50%,-50%) scale(.1);
  animation:rip .9s cubic-bezier(.2,.6,.3,1) both}
@keyframes rip{from{opacity:.8;transform:translate(-50%,-50%) scale(.1)}to{opacity:0;transform:translate(-50%,-50%) scale(1)}}

/* ---- nav ---- */
nav{position:fixed;top:0;left:0;right:0;z-index:90;display:flex;align-items:center;justify-content:space-between;
  padding:16px 30px;background:rgba(8,6,7,.6);backdrop-filter:blur(18px);border-bottom:1px solid rgba(255,255,255,.05)}
nav .brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px}
nav .brand svg{height:22px;width:auto;display:block}
nav .brand span{letter-spacing:.02em}
nav .links{display:flex;gap:28px;font-size:13px;color:var(--mut);align-items:center}
nav .links a{transition:.25s}
nav .links a:hover{color:var(--ink)}
nav .links .cta{color:#fff;background:var(--red);padding:9px 20px;border-radius:999px;font-weight:700}
nav .links .cta:hover{background:var(--red2);box-shadow:0 0 24px rgba(255,45,63,.5)}
@media(max-width:640px){nav .links a:not(.cta){display:none}}

/* ---- hero ---- */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;justify-content:center;text-align:center;overflow:hidden;z-index:2}
#resonance{position:absolute;inset:0;width:100%;height:100%}
.hero .inner{position:relative;z-index:2;padding:0 24px;max-width:900px}
.hero .mark{width:min(430px,72vw);margin:0 auto;display:block}
.spin{transform-origin:360px 554px;animation:spin 26s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.hmeta{position:absolute;bottom:32px;font-family:Consolas,Menlo,monospace;font-size:10px;letter-spacing:.28em;color:var(--mut);z-index:2}
.hmeta.l{left:34px}
.hmeta.r{right:34px}
@media(max-width:640px){.hmeta{display:none}}
.hero h1{margin-top:40px;font-size:clamp(34px,6.4vw,76px);font-weight:800;line-height:1.22}
.hero h1 .red{color:var(--red)}
.hero h1 .ch{display:inline-block;opacity:0;transform:translateY(.6em) rotate(6deg);animation:chpop .7s cubic-bezier(.2,.7,.2,1.2) forwards}
@keyframes chpop{to{opacity:1;transform:none}}
.hero p.lead{margin-top:26px;color:var(--mut);font-size:clamp(14px,1.7vw,17.5px);line-height:2.15}
.hero p.lead b{color:var(--ink);font-weight:700}
.hero .ctas{margin-top:42px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 32px;border-radius:999px;font-weight:700;font-size:15px;transition:.25s;background:none;font-family:inherit;border:none}
.btn.primary{background:var(--red);color:#fff}
.btn.primary:hover{background:var(--red2);transform:translateY(-2px);box-shadow:0 12px 40px rgba(255,45,63,.35)}
.btn.ghost{border:1px solid var(--line);color:var(--ink)}
button.btn.ghost{border:1px solid var(--line)}
.btn.ghost:hover{border-color:var(--red);color:var(--red)}
.hero .scrollhint{position:absolute;bottom:34px;left:50%;transform:translateX(-50%);color:var(--mut);font-size:11px;letter-spacing:.3em;z-index:2}
.hero .scrollhint::after{content:"";display:block;width:1.5px;height:44px;background:linear-gradient(var(--red),transparent);margin:10px auto 0;animation:drip 1.8s ease-in-out infinite}
@keyframes drip{0%{transform:scaleY(0);transform-origin:top}55%{transform:scaleY(1);transform-origin:top}56%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ---- サブページヘッダ ---- */
.phead{position:relative;z-index:2;padding:170px 28px 20px;max-width:1080px;margin:0 auto}
.phead h1{font-size:clamp(30px,4.6vw,56px);font-weight:800;margin-top:16px;line-height:1.35}

/* ---- マーキー帯 ---- */
.band{overflow:hidden;padding:13px 0;font-weight:800;font-size:14px;letter-spacing:.14em;white-space:nowrap;position:relative;z-index:2}
.band.red{background:var(--red);color:#0a0607;transform:rotate(-1.6deg) scale(1.02);margin:40px -20px}
.band.dark{background:#0d0a0b;color:var(--red);border-top:1px solid var(--line);border-bottom:1px solid var(--line);transform:rotate(1.2deg) scale(1.02);margin:40px -20px}
.band .in{display:inline-flex;gap:0;animation:slide 26s linear infinite}
.band.dark .in{animation-direction:reverse}
.band span{padding:0 26px}
@keyframes slide{to{transform:translateX(-50%)}}

/* ---- sections ---- */
section{position:relative;z-index:2;padding:130px 28px;max-width:1080px;margin:0 auto}
.kicker{color:var(--red);font-size:12px;letter-spacing:.32em;font-weight:700;display:flex;align-items:center;gap:14px}
.kicker::before{content:"";width:34px;height:1.5px;background:var(--red);flex:0 0 auto}
.kicker .secno{color:var(--mut);font-family:Consolas,Menlo,monospace;letter-spacing:.1em}
.gnum{position:absolute;top:44px;right:-8px;font-size:clamp(120px,17vw,210px);font-weight:900;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(246,243,241,.05);pointer-events:none;user-select:none;font-family:Arial,Helvetica,sans-serif}
h2{font-size:clamp(26px,3.4vw,42px);font-weight:800;margin-top:16px;line-height:1.4}
.sub{color:var(--mut);margin-top:16px;line-height:2.05;font-size:15px;max-width:660px}
.fx{opacity:0}
.fx.on{opacity:1}
.fx-up{transform:translateY(34px);transition:all .8s cubic-bezier(.2,.6,.2,1)}
.fx-up.on{transform:none}
.fx-left{transform:translateX(-60px) skewX(4deg);transition:all .8s cubic-bezier(.2,.6,.2,1)}
.fx-left.on{transform:none}
.fx-right{transform:translateX(60px) skewX(-4deg);transition:all .8s cubic-bezier(.2,.6,.2,1)}
.fx-right.on{transform:none}
.fx-blur{filter:blur(14px);transform:scale(1.04);transition:all 1s ease}
.fx-blur.on{filter:blur(0);transform:none}
.fx-drop{transform:translateY(-40px);transition:all .6s cubic-bezier(.34,1.56,.5,1)}
.fx-drop.on{transform:none}

/* ---- タイプ別あるある(WHO) ---- */
.who{max-width:860px}
.persona{padding:56px 4px;border-bottom:1px solid var(--line)}
.persona:last-of-type{border-bottom:none}
.persona .chip{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--red);
  border:1.5px solid rgba(255,45,63,.5);border-radius:999px;padding:6px 14px;margin-bottom:18px}
.persona blockquote{font-size:clamp(19px,2.8vw,30px);font-weight:800;line-height:1.75;border:none}
.persona blockquote em{font-style:normal;color:var(--red)}
.persona .reply{margin-top:18px;color:var(--mut);font-size:14px;line-height:2;padding-left:18px;border-left:2px solid var(--red)}
.persona .reply b{color:var(--ink)}
.who .knot{margin-top:70px;text-align:center}
.who .knot p{font-size:clamp(18px,2.6vw,28px);font-weight:800;line-height:2}
.who .knot p b{color:var(--red)}

/* ---- 処方箋(PROMISE) ---- */
.rx .list{margin-top:54px;border-top:1px solid var(--line)}
.rx .item{display:grid;grid-template-columns:84px 1fr 2fr;gap:26px;align-items:baseline;padding:38px 6px;border-bottom:1px solid var(--line);transition:.3s;position:relative}
.rx .item:hover{background:rgba(255,45,63,.03)}
.rx .item:hover .no::after{width:44px}
.rx .no{font-size:12px;color:var(--red);font-weight:800;letter-spacing:.14em}
.rx .no::after{content:"";display:block;height:2px;width:0;background:var(--red);margin-top:6px;transition:.4s}
.rx h3{font-size:clamp(18px,2.2vw,24px);font-weight:800;line-height:1.5}
.rx p{color:var(--mut);font-size:14px;line-height:2.05}
.rx p b{color:var(--ink)}
@media(max-width:720px){.rx .item{grid-template-columns:1fr;gap:8px}}

/* ---- tracks ---- */
.tracks{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px;margin-top:54px}
.track{background:var(--bg2);border:1px solid var(--line);border-radius:18px;padding:20px 18px;display:flex;gap:12px;align-items:center;transition:.3s;cursor:pointer;position:relative;overflow:hidden}
.track::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--red);transition:.6s}
.track:hover::after{width:100%}
.track:hover{border-color:rgba(255,45,63,.5);transform:translateY(-3px);box-shadow:0 16px 44px rgba(0,0,0,.4)}
.track .play{flex:0 0 46px;height:46px;border-radius:50%;background:rgba(255,45,63,.1);display:flex;align-items:center;justify-content:center;color:var(--red);transition:.3s}
.track:hover .play{background:var(--red);color:#fff;box-shadow:0 0 20px rgba(255,45,63,.5)}
.track .meta{flex:1;min-width:0}
.track .meta .t{font-weight:700;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.track .meta .d{color:var(--mut);font-size:12px;margin-top:6px;display:flex;gap:10px;align-items:center;overflow:hidden}
.track .meta .d span{white-space:nowrap}
.track .bars{display:flex;gap:2.5px;align-items:flex-end;height:28px;flex:0 0 42px}
.track .bars i{width:3.5px;background:var(--red);opacity:.55;border-radius:2px;animation:eq 1.15s ease-in-out infinite;animation-play-state:paused}
.track:hover .bars i{animation-play-state:running}
.track .bars i:nth-child(2){animation-delay:.14s}.track .bars i:nth-child(3){animation-delay:.28s}
.track .bars i:nth-child(4){animation-delay:.42s}.track .bars i:nth-child(5){animation-delay:.56s}
.track .bars i:nth-child(6){animation-delay:.7s}.track .bars i:nth-child(7){animation-delay:.84s}
@keyframes eq{0%,100%{height:20%}50%{height:100%}}
.soon{margin-top:30px;color:var(--mut);font-size:13px;border:1px solid var(--line);border-radius:12px;padding:16px 22px;display:inline-flex;align-items:center;gap:10px}
.soon svg{color:var(--red);flex:0 0 auto}
.soon b{color:var(--ink)}

/* ---- license ---- */
.rules{margin-top:50px}
.rule{display:flex;gap:18px;padding:24px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.rule:last-child{border-bottom:none}
.rule .ic{flex:0 0 32px;height:32px;border-radius:9px;display:flex;align-items:center;justify-content:center;margin-top:2px}
.rule .ic.ok{background:rgba(255,45,63,.1);color:var(--red)}
.rule .ic.ng{background:rgba(255,255,255,.05);color:var(--mut)}
.rule h4{font-size:15.5px;font-weight:700}
.rule p{color:var(--mut);font-size:13.5px;margin-top:7px;line-height:2}
.credit{margin-top:34px;background:var(--bg2);border:1px solid var(--line);border-radius:16px;padding:24px}
.credit .row{display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.credit code{color:var(--red);font-size:13.5px;font-family:Consolas,Menlo,monospace}
.copybtn{border:1px solid var(--red);color:var(--red);background:none;border-radius:999px;padding:9px 20px;font-size:12.5px;font-weight:700;cursor:pointer;transition:.25s}
.copybtn:hover{background:var(--red);color:#fff}
.finenote{margin-top:16px;color:var(--mut);font-size:12px;line-height:1.95}

/* ---- about概要 ---- */
.facts{margin-top:50px;border-top:1px solid var(--line)}
.facts .row{display:grid;grid-template-columns:190px 1fr;gap:22px;padding:24px 6px;border-bottom:1px solid var(--line)}
.facts dt{color:var(--mut);font-size:12.5px;letter-spacing:.14em;font-weight:700;padding-top:3px}
.facts dd{font-size:14.5px;line-height:2}
.facts dd a{color:var(--red)}
.facts dd a:hover{text-decoration:underline}
@media(max-width:640px){.facts .row{grid-template-columns:1fr;gap:6px}}

/* ---- ending ---- */
.ending{text-align:center;padding:180px 28px 120px;position:relative;z-index:2}
.ending .bow{margin:0 auto;display:block;transform-origin:22% 78%}
.ending .bow.on{animation:bow 2.8s ease-in-out .3s 1}
@keyframes bow{0%,100%{transform:rotate(0)}22%,62%{transform:rotate(9deg) translateY(7px)}}
.ending h2{margin-top:36px}
.ending p{color:var(--mut);margin-top:16px;font-size:14px;line-height:2.15}
.ending .ascii{margin-top:28px;color:var(--red);font-family:Consolas,Menlo,monospace;font-size:15px;letter-spacing:.12em;min-height:1.4em}
.ending .ascii .caret{display:inline-block;width:8px;height:1.1em;background:var(--red);vertical-align:-2px;animation:blink 1s steps(1) infinite;margin-left:2px}
@keyframes blink{50%{opacity:0}}

footer{border-top:1px solid var(--line);padding:72px 28px 44px;color:var(--mut);font-size:13px;position:relative;z-index:2;background:var(--bg)}
footer .cols{max-width:1080px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:44px}
@media(max-width:720px){footer .cols{grid-template-columns:1fr}}
footer .fbrand svg{height:30px;width:auto;display:block}
footer .fbrand p{margin-top:18px;line-height:2;font-size:12.5px}
footer h5{color:var(--ink);font-size:12px;letter-spacing:.2em;font-weight:700;margin-bottom:16px}
footer ul{list-style:none}
footer li{margin-bottom:10px}
footer a:hover{color:var(--red)}
footer .legal{max-width:1080px;margin:52px auto 0;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:11.5px;color:var(--mut)}

/* ---- tracks: 再生状態・デモ表記・DL・進捗 ---- */
.track{position:relative}
.demochip{display:inline-block;font-size:11px;font-weight:700;color:var(--red);
  border:1px solid rgba(255,45,63,.5);border-radius:999px;padding:2px 8px;margin-left:8px;
  letter-spacing:.04em;vertical-align:middle}
.dlbtn{flex:0 0 34px;width:34px;height:34px;border-radius:50%;border:1px solid var(--line);
  background:none;color:var(--mut);display:flex;align-items:center;justify-content:center;
  transition:.25s}
.dlbtn:hover{border-color:var(--red);color:var(--red)}
@media(max-width:640px){
  .dlbtn{flex:0 0 44px;width:44px;height:44px}
  .track .bars{display:none}
}
.prog{position:absolute;left:0;bottom:0;height:2px;background:var(--red);width:0;
  transition:width .15s linear;z-index:1}
.track.playing .bars i{animation-play-state:running}
.track.playing .play{background:var(--red);color:#fff;box-shadow:0 0 20px rgba(255,45,63,.5)}

/* ---- DL同意モーダル ---- */
.dlmodal-overlay{position:fixed;inset:0;z-index:300;display:flex;align-items:center;justify-content:center;
  padding:16px;background:rgba(4,3,3,.72);backdrop-filter:blur(6px);
  opacity:0;pointer-events:none;transition:opacity .25s}
.dlmodal-overlay.open{opacity:1;pointer-events:auto}
.dlmodal{background:var(--bg2);border:1px solid var(--line);border-radius:18px;
  max-width:480px;width:100%;padding:28px;transform:translateY(12px);transition:transform .25s}
.dlmodal-overlay.open .dlmodal{transform:none}
.dlmodal h3{font-size:19px;font-weight:800;line-height:1.5}
.dlmodal .dlrules{margin-top:18px;padding-left:20px;color:var(--mut);font-size:13.5px;line-height:1.95}
.dlmodal .dlrules li{margin-bottom:10px}
.dlmodal .dlrules li::marker{color:var(--red);font-weight:700}
.dlmodal .dlrules a{color:var(--red)}
.dlmodal .dlrules a:hover{text-decoration:underline}
.dlmodal-actions{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap}
.dlmodal-actions .btn{padding:13px 26px;font-size:14px}
@media(max-width:480px){.dlmodal{padding:22px}.dlmodal-actions .btn{flex:1 1 auto;justify-content:center}}