/* C-season v2 — 四季（Season）をモチーフにした配色。春・夏・秋・冬の4色が流れる。 */
:root{
  --ink:#0b1f2e;--ink-2:#13324a;--text:#1b2a36;--muted:#5b6b78;--line:#e3e9ee;--bg:#fbfcfd;--card:#ffffff;
  --spring:#ff8fb1;--summer:#19c3b1;--autumn:#ffae3d;--winter:#5b8cff;
  --grad:linear-gradient(110deg,var(--spring),var(--autumn) 30%,var(--summer) 62%,var(--winter));
  --radius:22px;--shadow:0 20px 60px -24px rgba(11,31,46,.35);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.9 "Zen Kaku Gothic New","Hiragino Sans","Noto Sans JP",system-ui,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
img,svg{display:block;max-width:100%}

/* ===== header ===== */
header{position:sticky;top:0;z-index:50;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:14px max(20px,calc((100% - 1180px)/2));background:rgba(251,252,253,.78);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid rgba(227,233,238,.7)}
header>a{display:flex;flex-direction:column;text-decoration:none;line-height:1.2}
header strong{font:800 24px/1.1 "Outfit","Zen Kaku Gothic New",sans-serif;letter-spacing:.02em}
header strong .c{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.group-label{display:block;font-size:11px;color:var(--muted);letter-spacing:.08em}
nav{display:flex;flex-wrap:wrap;gap:6px}
nav a{text-decoration:none;font-size:14px;font-weight:700;padding:8px 14px;border-radius:999px;transition:background .2s}
nav a:hover{background:#eef3f7}
nav a.nav-cta{background:var(--ink);color:#fff}
nav a.nav-cta:hover{background:var(--ink-2)}

/* ===== common ===== */
main section,.legal{max-width:1180px;margin:auto;padding:88px 24px}
.kicker{display:inline-flex;align-items:center;gap:10px;font:700 13px/1 "Outfit",sans-serif;letter-spacing:.22em;text-transform:uppercase;color:var(--muted)}
.kicker::before{content:"";width:28px;height:3px;border-radius:3px;background:var(--grad)}
h1,h2,h3{color:var(--ink);letter-spacing:.01em}
h2{font-size:clamp(28px,4vw,44px);line-height:1.35;margin:14px 0 26px}
h3{font-size:20px;line-height:1.5;margin:0 0 8px}
p{max-width:760px}
.grad-text{background:var(--grad);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:flow 8s linear infinite}
@keyframes flow{to{background-position:200% 0}}
.btn{display:inline-flex;align-items:center;gap:10px;padding:16px 28px;border-radius:999px;font-weight:800;text-decoration:none;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:#fff;color:var(--ink);box-shadow:0 10px 30px -10px rgba(0,0,0,.45)}
.btn-ghost{color:#fff;border:1.5px solid rgba(255,255,255,.45)}
.btn-ghost:hover{background:rgba(255,255,255,.08)}
.btn-dark{background:var(--ink);color:#fff;box-shadow:var(--shadow)}
.arrow{transition:transform .2s}.btn:hover .arrow{transform:translateX(4px)}

/* ===== hero ===== */
.hero{position:relative;max-width:none!important;padding:0!important;background:var(--ink);color:#fff;overflow:hidden;isolation:isolate}
.hero-inner{position:relative;max-width:1180px;margin:auto;padding:120px 24px 130px;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center}
.blobs{position:absolute;inset:-20%;z-index:-1;filter:blur(70px);opacity:.75}
.blobs span{position:absolute;width:42vw;height:42vw;max-width:620px;max-height:620px;border-radius:50%;mix-blend-mode:screen;animation:drift 18s ease-in-out infinite alternate}
.blobs span:nth-child(1){background:var(--spring);left:5%;top:5%}
.blobs span:nth-child(2){background:var(--summer);right:0;top:20%;animation-delay:-4s}
.blobs span:nth-child(3){background:var(--autumn);left:30%;bottom:-5%;animation-delay:-8s;opacity:.7}
.blobs span:nth-child(4){background:var(--winter);right:20%;bottom:10%;animation-delay:-12s}
@keyframes drift{0%{transform:translate(0,0) scale(1)}50%{transform:translate(6%,-8%) scale(1.15)}100%{transform:translate(-8%,6%) scale(.95)}}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(ellipse at 30% 40%,rgba(11,31,46,.15),rgba(11,31,46,.75) 70%),repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 80px)}
.hero .eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;padding:7px 14px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22)}
.hero h1{font-size:clamp(28px,4.5vw,62px);line-height:1.12;margin:26px 0 24px;color:#fff;font-weight:900;letter-spacing:-.01em}
.hero h1 .line{display:block;overflow:hidden;white-space:nowrap;padding-bottom:.06em}
.hero h1 .line>span{display:inline-block;transform:translateY(105%);animation:rise .9s cubic-bezier(.2,.8,.2,1) forwards}
.hero h1 .line:nth-child(2)>span{animation-delay:.12s}.hero h1 .line:nth-child(3)>span{animation-delay:.24s}
@keyframes rise{to{transform:none}}
.hero .lead{font-size:clamp(17px,1.6vw,20px);color:rgba(255,255,255,.86);max-width:560px}
.hero .links{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}

/* floating cards (イメージ) */
.float-stage{position:relative;height:440px;perspective:1000px}
.fcard{position:absolute;width:250px;padding:18px 20px;border-radius:18px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:0 30px 60px -30px rgba(0,0,0,.6);color:#fff;animation:bob 6s ease-in-out infinite}
.fcard small{display:flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.1em;color:rgba(255,255,255,.75)}
.fcard small i{width:8px;height:8px;border-radius:50%}
.fcard b{display:block;font-size:19px;margin:6px 0 2px}
.fcard .bar{height:6px;border-radius:6px;background:rgba(255,255,255,.18);margin-top:12px;overflow:hidden}
.fcard .bar span{display:block;height:100%;border-radius:6px;background:var(--grad);animation:fill 2.4s 1s ease-out both}
@keyframes fill{from{width:0}}
.fcard:nth-child(1){left:4%;top:4%;transform:rotate(-4deg)}
.fcard:nth-child(2){right:0;top:30%;animation-delay:-2s;transform:rotate(3deg)}
.fcard:nth-child(3){left:12%;bottom:2%;animation-delay:-4s;transform:rotate(-1deg)}
@keyframes bob{50%{translate:0 -14px}}
.img-note{position:absolute;right:0;bottom:-28px;font-size:11px;color:rgba(255,255,255,.55)}

/* scroll cue */
.scroll-cue{position:absolute;left:50%;bottom:26px;translate:-50% 0;width:26px;height:42px;border:2px solid rgba(255,255,255,.4);border-radius:14px}
.scroll-cue::after{content:"";position:absolute;left:50%;top:8px;width:4px;height:8px;border-radius:2px;background:#fff;translate:-50% 0;animation:cue 1.8s infinite}
@keyframes cue{60%{transform:translateY(12px);opacity:0}}

/* ===== marquee ===== */
.marquee{max-width:none!important;padding:26px 0!important;background:var(--ink);overflow:hidden;border-top:1px solid rgba(255,255,255,.08)}
.marquee .track{display:flex;gap:56px;width:max-content;animation:marq 32s linear infinite}
.marquee span{font:800 clamp(22px,3vw,36px)/1 "Zen Kaku Gothic New",sans-serif;color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.55);white-space:nowrap}
.marquee span:nth-child(odd){color:#fff;-webkit-text-stroke:0}
@keyframes marq{to{transform:translateX(-50%)}}

/* ===== story (timeline) ===== */
.story{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:start}
.story .big{font-size:clamp(22px,2.4vw,28px);line-height:1.7;font-weight:700;color:var(--ink)}
.timeline{list-style:none;margin:0;padding:0;position:relative}
.timeline::before{content:"";position:absolute;left:23px;top:10px;bottom:10px;width:3px;border-radius:3px;background:var(--grad)}
.timeline li{position:relative;padding:0 0 34px 76px}
.timeline li::before{content:attr(data-n);position:absolute;left:0;top:0;width:49px;height:49px;border-radius:50%;display:grid;place-items:center;background:#fff;border:3px solid var(--ink);font:800 16px "Outfit",sans-serif;color:var(--ink)}
.timeline b{display:block;font-size:19px;color:var(--ink)}

/* ===== cards ===== */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.cards.two{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s,border-color .35s;overflow:hidden}
.card::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .5s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.card:hover::before{transform:scaleX(1)}
.card .ico{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;margin-bottom:18px;color:#fff}
.card .ico svg{width:28px;height:28px}
.ico.s1{background:linear-gradient(135deg,var(--spring),#ff6a8f)}.ico.s2{background:linear-gradient(135deg,var(--summer),#0f9f90)}.ico.s3{background:linear-gradient(135deg,var(--autumn),#ff8a1f)}.ico.s4{background:linear-gradient(135deg,var(--winter),#3b64e0)}
.card p{color:var(--muted);margin:0}
.card a.more{display:inline-flex;gap:6px;margin-top:18px;font-weight:800;text-decoration:none;color:var(--ink)}
.feature-big{background:var(--ink);color:#fff;border:0}
.feature-big h3{color:#fff;font-size:28px}
.feature-big p{color:rgba(255,255,255,.78)}
.feature-big .tag{display:inline-block;font:800 12px/1 "Outfit",sans-serif;letter-spacing:.2em;padding:7px 12px;border-radius:999px;background:var(--grad);color:var(--ink);margin-bottom:16px}

/* ===== company ===== */
dl{display:grid;grid-template-columns:170px 1fr;margin:0;border-top:1px solid var(--line)}
dt,dd{padding:18px 0;border-bottom:1px solid var(--line);margin:0}
dt{font-weight:800;color:var(--ink)}
.group-intro{margin-top:40px;padding:30px;border-radius:var(--radius);background:linear-gradient(135deg,#f3f7fb,#fff);border:1px solid var(--line)}

/* ===== CTA ===== */
.cta{max-width:none!important;padding:0 24px 110px!important}
.cta-box{position:relative;max-width:1180px;margin:auto;border-radius:32px;padding:80px 40px;text-align:center;color:#fff;background:var(--ink);overflow:hidden;isolation:isolate}
.cta-box::before{content:"";position:absolute;inset:-40%;z-index:-1;background:conic-gradient(from 0deg,var(--spring),var(--autumn),var(--summer),var(--winter),var(--spring));filter:blur(80px);opacity:.55;animation:spin 16s linear infinite}
@keyframes spin{to{transform:rotate(1turn)}}
.cta-box h2{color:#fff;margin:0 auto 14px;max-width:none}
.cta-box p{margin:0 auto 30px;color:rgba(255,255,255,.85)}

/* ===== problems → solution (LP) ===== */
.problems{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:10px}
.problem{display:flex;gap:16px;align-items:flex-start;padding:22px 24px;border-radius:18px;background:#fff;border:1px solid var(--line)}
.problem .x{flex:none;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#fff1f4;color:#e0446b;font-weight:900}
.solve{margin-top:34px;display:flex;align-items:center;gap:18px;font-size:clamp(20px,2.4vw,28px);font-weight:900;color:var(--ink)}
.solve .pill{padding:10px 20px;border-radius:999px;background:var(--ink);color:#fff;font:900 clamp(18px,2vw,24px) "Outfit",sans-serif;letter-spacing:.06em}

/* LP hero phone (イメージ) */
.phone{position:relative;width:290px;height:580px;margin:auto;border-radius:46px;padding:14px;background:linear-gradient(160deg,#2a3f52,#0b1520);box-shadow:0 50px 90px -40px rgba(0,0,0,.8),inset 0 0 0 2px rgba(255,255,255,.12);animation:bob 7s ease-in-out infinite}
.phone .screen{height:100%;border-radius:34px;background:#f4f7fa;overflow:hidden;color:var(--ink);display:flex;flex-direction:column}
.phone .top{padding:26px 18px 14px;background:var(--ink);color:#fff}
.phone .top small{opacity:.7;font-size:11px;letter-spacing:.12em}
.phone .top b{display:block;font-size:20px}
.phone .row{margin:10px 12px 0;padding:12px 14px;border-radius:14px;background:#fff;box-shadow:0 4px 14px -8px rgba(11,31,46,.3);font-size:13px;line-height:1.5;opacity:0;animation:pop .6s cubic-bezier(.2,.8,.2,1) forwards}
.phone .row i{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px}
.phone .row:nth-child(2){animation-delay:.6s}.phone .row:nth-child(3){animation-delay:.9s}.phone .row:nth-child(4){animation-delay:1.2s}.phone .row:nth-child(5){animation-delay:1.5s}
@keyframes pop{from{opacity:0;transform:translateY(16px) scale(.96)}to{opacity:1;transform:none}}
.phone .tabs{margin-top:auto;display:flex;justify-content:space-around;padding:12px 6px 16px;background:#fff;border-top:1px solid var(--line);font-size:10px;color:var(--muted)}
.phone .tabs span:first-child{color:var(--ink);font-weight:800}

/* roles (LP) */
.roles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.role{padding:28px;border-radius:var(--radius);border:1px solid var(--line);background:#fff}
.role .who{display:inline-block;padding:6px 14px;border-radius:999px;font-weight:800;font-size:14px;margin-bottom:14px}
.role ul{margin:0;padding-left:1.2em;color:var(--muted)}
.devices{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.devices span{padding:10px 18px;border-radius:999px;background:#eef3f7;font-weight:800;color:var(--ink)}

/* steps (LP) */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;counter-reset:s}
.steps li{counter-increment:s;position:relative;padding:58px 18px 22px;border-radius:18px;background:#fff;border:1px solid var(--line);font-weight:700;color:var(--ink)}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;top:16px;left:18px;font:900 24px "Outfit",sans-serif;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* FAQ */
details{border:1px solid var(--line);border-radius:16px;background:#fff;padding:4px 22px;margin-bottom:12px;transition:box-shadow .2s}
details[open]{box-shadow:var(--shadow)}
summary{cursor:pointer;font-weight:800;color:var(--ink);padding:16px 0;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font:400 26px/1 "Outfit",sans-serif;transition:transform .3s}
details[open] summary::after{transform:rotate(45deg)}
details p{margin:0 0 18px;color:var(--muted)}

/* ===== legal / contact (既存ページ) ===== */
.legal{max-width:880px}
.legal h2{font-size:32px}.legal h3{margin-top:40px}
aside{background:#eef3f7;padding:18px 24px;border-radius:14px;border-left:4px solid var(--winter)}
.mail a{display:inline-block;font:800 clamp(20px,3vw,30px) "Outfit",sans-serif;color:var(--ink);text-decoration:none;padding:16px 26px;border-radius:999px;background:#eef3f7}
main section h1{font-size:clamp(32px,4vw,48px);color:var(--ink)}

/* ===== footer ===== */
footer{margin-top:0;padding:46px max(20px,calc((100% - 1180px)/2));display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px;background:var(--ink);color:rgba(255,255,255,.8);font-size:14px}
footer .group-label{color:rgba(255,255,255,.55)}
footer nav a:hover{background:rgba(255,255,255,.08)}

/* ===== reveal ===== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s cubic-bezier(.2,.8,.2,1),transform .9s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.1s}.reveal.d2{transition-delay:.2s}.reveal.d3{transition-delay:.3s}

@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}.hero h1 .line>span{transform:none}.phone .row{opacity:1}}

/* ===== responsive ===== */
@media(max-width:960px){
  .hero-inner{grid-template-columns:1fr;padding:90px 20px 110px}
  .float-stage{height:330px}
  .fcard{width:210px}
  .story{grid-template-columns:1fr;gap:30px}
  .cards,.roles{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  header{padding:10px 16px}
  header strong{font-size:20px}
  nav a{padding:6px 9px;font-size:12px}
  nav a:not(.nav-cta):not(.keep){display:none}
  main section,.legal{padding:72px 16px}
  .cards,.cards.two,.roles,.problems,.steps{grid-template-columns:1fr}
  .float-stage{height:auto;display:grid;gap:12px;perspective:none}
  .fcard{position:relative;inset:auto!important;width:auto;transform:none!important;padding:14px 18px}.fcard b{font-size:16px}
  .fcard:nth-child(2){margin-left:24px}.fcard:nth-child(3){margin-right:24px}
  .img-note{position:static;display:block;text-align:right}
  .blobs span{width:80vw;height:80vw}
  .phone{width:250px;height:500px}
  dl{grid-template-columns:1fr}dt{padding-bottom:0;border-bottom:0}
  .cta-box{padding:60px 22px;border-radius:24px}
  .cta{padding:0 16px 72px!important}
}

/* 代表メッセージ */
.message{display:grid;grid-template-columns:120px 1fr;gap:30px;padding:56px;border-radius:32px;background:linear-gradient(135deg,#fff,#f3f7fb);border:1px solid var(--line);margin-top:14px}
.message-mark{font:900 140px/1 "Outfit",sans-serif;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.message h2{margin-top:0}
.message .sign{display:flex;flex-direction:column;align-items:flex-end;margin:30px 0 0 auto;text-align:right}
.message .sign span{font-size:13px;color:var(--muted);letter-spacing:.1em}
.message .sign strong{font-size:26px;color:var(--ink);letter-spacing:.2em}
@media(max-width:640px){.message{grid-template-columns:1fr;padding:30px 22px;gap:0}.message-mark{font-size:90px;height:60px}}

/* =====================================================================
   v3 近未来テーマ（v2の構造の上に重ねる）
   ===================================================================== */
:root{--bg:#05070d;--text:#d4e1ec;--muted:#8ba1b5;--line:rgba(140,200,255,.14);--card:rgba(255,255,255,.035);--ink:#ffffff;--neon:#5ef0ff;--shadow:0 0 0 1px rgba(94,240,255,.25),0 20px 60px -20px rgba(94,240,255,.35)}
body{background:var(--bg);color:var(--text)}
body::before{content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;background:
  radial-gradient(60% 50% at 15% 0%,rgba(255,143,177,.10),transparent 60%),
  radial-gradient(50% 50% at 90% 20%,rgba(25,195,177,.10),transparent 60%),
  radial-gradient(60% 60% at 50% 110%,rgba(91,140,255,.14),transparent 60%),
  linear-gradient(rgba(140,200,255,.045) 1px,transparent 1px) 0 0/56px 56px,
  linear-gradient(90deg,rgba(140,200,255,.045) 1px,transparent 1px) 0 0/56px 56px}
body::after{content:"";position:fixed;inset:0;z-index:100;pointer-events:none;background:repeating-linear-gradient(0deg,rgba(255,255,255,.018) 0 1px,transparent 1px 3px);mix-blend-mode:overlay}
h1,h2,h3,dt,summary,.timeline b,.story .big{color:#fff}
.kicker{font-family:"JetBrains Mono",ui-monospace,monospace;color:var(--neon);letter-spacing:.3em}
.kicker::before{background:var(--neon);box-shadow:0 0 12px var(--neon)}
.kicker::after{content:"_";animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
header{background:rgba(5,7,13,.72);border-bottom:1px solid var(--line)}
header strong{color:#fff;display:flex;align-items:center;gap:10px}
header .logo-mark{width:30px;height:30px}
header .group-label{color:var(--muted)}
nav a{color:#c8d6e2}nav a:hover{background:rgba(94,240,255,.08);color:#fff}
nav a.nav-cta{background:transparent;color:var(--neon);border:1px solid rgba(94,240,255,.6);box-shadow:inset 0 0 12px rgba(94,240,255,.25),0 0 14px rgba(94,240,255,.25)}
nav a.nav-cta:hover{background:rgba(94,240,255,.12)}

/* hero */
.hero{background:transparent}
.hero::after{background:radial-gradient(ellipse at 30% 40%,transparent,rgba(5,7,13,.85) 75%)}
.blobs{opacity:.45}
#net{position:absolute;inset:0;width:100%;height:100%;z-index:-1;opacity:.75}
.floor{position:absolute;left:-50%;right:-50%;bottom:-2px;height:46%;z-index:-1;transform:perspective(520px) rotateX(62deg);transform-origin:bottom;background:linear-gradient(rgba(94,240,255,.35) 1px,transparent 1px) 0 0/100% 46px,linear-gradient(90deg,rgba(94,240,255,.35) 1px,transparent 1px) 0 0/46px 100%;mask-image:linear-gradient(to top,#000 10%,transparent 85%);-webkit-mask-image:linear-gradient(to top,#000 10%,transparent 85%);animation:floor 3s linear infinite}
@keyframes floor{to{background-position:0 46px,0 0}}
.hero .eyebrow{font-family:"JetBrains Mono",ui-monospace,monospace;letter-spacing:.12em;background:rgba(94,240,255,.08);border-color:rgba(94,240,255,.4);color:#bff8ff}
.hero h1{text-shadow:0 0 40px rgba(94,240,255,.18)}
.btn-primary{background:linear-gradient(90deg,#5ef0ff,#8fb2ff);color:#05070d;box-shadow:0 0 24px rgba(94,240,255,.45)}
.btn-primary:hover{box-shadow:0 0 40px rgba(94,240,255,.7)}
.btn-ghost{border-color:rgba(255,255,255,.3)}

/* orbit stage */
.orbit-stage{position:relative;aspect-ratio:1;max-width:520px;width:110%;margin:auto}
.orbit-stage .ring{position:absolute;inset:0;border-radius:50%;border:1px solid rgba(94,240,255,.18)}
.orbit-stage .ring.r2{inset:12%;border-style:dashed;border-color:rgba(255,255,255,.12);animation:spin 40s linear infinite reverse}
.orbit-stage .ring.r3{inset:24%;border-color:rgba(94,240,255,.28);box-shadow:0 0 40px rgba(94,240,255,.15) inset}
.orbit-stage .core{position:absolute;inset:31%;filter:drop-shadow(0 0 24px rgba(94,240,255,.45))}
.orbit-stage .core svg{width:100%;height:100%}
.orbit-stage .sat{position:absolute;inset:0;animation:spin 14s linear infinite}
.orbit-stage .sat i{position:absolute;top:-6px;left:50%;width:12px;height:12px;margin-left:-6px;border-radius:50%;background:#fff;box-shadow:0 0 16px #fff,0 0 30px var(--neon)}
.orbit-stage .sat.s2{inset:12%;animation-duration:20s;animation-direction:reverse}.orbit-stage .sat.s2 i{background:var(--autumn);box-shadow:0 0 16px var(--autumn)}
.chip{position:absolute;padding:8px 14px;border-radius:10px;font:700 13px/1.3 "Zen Kaku Gothic New",sans-serif;color:#e8f6ff;background:rgba(8,18,30,.7);border:1px solid rgba(94,240,255,.35);backdrop-filter:blur(8px);box-shadow:0 0 18px rgba(94,240,255,.15);animation:bob 6s ease-in-out infinite}
.chip small{display:block;font:600 10px "JetBrains Mono",monospace;letter-spacing:.15em;color:var(--neon)}
.chip.c1{left:-4%;top:14%}.chip.c2{right:-6%;top:42%;animation-delay:-2s}.chip.c3{left:6%;bottom:6%;animation-delay:-4s}

/* marquee */
.marquee{background:transparent;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.marquee span{-webkit-text-stroke:1px rgba(94,240,255,.45)}
.marquee span:nth-child(odd){color:#fff;text-shadow:0 0 18px rgba(94,240,255,.35)}

/* cards / panels: glass + HUD corners */
.card,.problem,.role,.steps li,details,.group-intro,.message{background:var(--card);border:1px solid var(--line);backdrop-filter:blur(6px)}
.card{position:relative}
.card::after,.role::after{content:"";position:absolute;inset:8px;pointer-events:none;background:
  linear-gradient(var(--neon),var(--neon)) 0 0/14px 1px no-repeat,linear-gradient(var(--neon),var(--neon)) 0 0/1px 14px no-repeat,
  linear-gradient(var(--neon),var(--neon)) 100% 100%/14px 1px no-repeat,linear-gradient(var(--neon),var(--neon)) 100% 100%/1px 14px no-repeat;opacity:.55;transition:opacity .3s}
.role{position:relative}
.card:hover{box-shadow:var(--shadow);border-color:rgba(94,240,255,.4)}
.card:hover::after{opacity:1}
.card p,.role ul,details p{color:var(--muted)}
.card a.more{color:var(--neon)}
.feature-big{background:linear-gradient(135deg,rgba(94,240,255,.12),rgba(91,140,255,.08));border:1px solid rgba(94,240,255,.35)}
.feature-big .tag{color:#05070d}
.ico{box-shadow:0 0 22px currentColor}
.ico.s1{color:#fff;box-shadow:0 0 22px rgba(255,143,177,.55)}.ico.s2{box-shadow:0 0 22px rgba(25,195,177,.55)}.ico.s3{box-shadow:0 0 22px rgba(255,174,61,.55)}.ico.s4{box-shadow:0 0 22px rgba(91,140,255,.55)}

/* timeline */
.timeline::before{box-shadow:0 0 12px rgba(94,240,255,.6)}
.timeline li::before{background:#05070d;border-color:var(--neon);color:var(--neon);box-shadow:0 0 16px rgba(94,240,255,.5)}

/* company */
dl{border-top-color:var(--line)}dt,dd{border-bottom-color:var(--line)}
dd a{color:var(--neon)}
.message-mark{filter:drop-shadow(0 0 16px rgba(94,240,255,.4))}
.message .sign strong{color:#fff}

/* CTA */
.cta-box{background:rgba(5,7,13,.6);border:1px solid rgba(94,240,255,.35);box-shadow:0 0 60px -10px rgba(94,240,255,.35)}
.cta-box::before{opacity:.35}

/* LP */
.problem .x{background:rgba(255,90,130,.12);color:#ff7aa0}
.solve{color:#fff}.solve .pill{background:linear-gradient(90deg,#5ef0ff,#8fb2ff);color:#05070d;box-shadow:0 0 24px rgba(94,240,255,.5)}
.role .who{filter:saturate(1.2)}
.devices span{background:rgba(94,240,255,.08);color:#dff9ff;border:1px solid rgba(94,240,255,.3)}
.steps li{color:#fff}
details[open]{box-shadow:var(--shadow)}
.phone{box-shadow:0 0 0 1px rgba(94,240,255,.35),0 0 60px rgba(94,240,255,.25),0 50px 90px -40px rgba(0,0,0,.8)}

/* legal / contact */
aside{background:rgba(94,240,255,.06);border-left-color:var(--neon);color:var(--text)}
.mail a{background:rgba(94,240,255,.08);color:#fff;border:1px solid rgba(94,240,255,.35)}
main section h1{color:#fff}
.legal a{color:var(--neon)}

footer{background:#030409;border-top:1px solid var(--line)}

@media(max-width:960px){.orbit-stage{max-width:340px}.chip.c1{left:0}.chip.c2{right:0}}
@media(max-width:640px){.orbit-stage{max-width:280px;margin-top:10px}.chip{font-size:12px;padding:6px 10px}.floor{height:30%}}
/* v3：--ink を白にしたため、元々「紺地」に使っていた箇所を固定色に戻す */
.phone .screen{color:#0b1f2e}.phone .top{background:#0b1f2e}.phone .row b{color:#0b1f2e}.phone .tabs span:first-child{color:#0b1f2e}
.btn-dark{background:#0b1f2e;color:#fff}
.role .who{background-blend-mode:normal}

/* 社名の由来 */
.name-card{display:grid;grid-template-columns:auto 1fr;gap:56px;align-items:center;padding:56px;border-radius:32px;border:1px solid var(--line);background:linear-gradient(135deg,rgba(47,140,255,.10),rgba(94,240,255,.04))}
.name-word{font:900 clamp(56px,8vw,110px)/1 "Outfit",sans-serif;color:#fff;letter-spacing:-.02em;white-space:nowrap}
.name-word .sea{background:linear-gradient(180deg,#5ef0ff,#2f8cff 60%,#1c3fd0);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 0 24px rgba(94,240,255,.45))}
.name-word .dash{color:var(--muted)}
.name-card h2{margin-top:0;font-size:clamp(24px,2.8vw,36px)}.name-card b{color:var(--neon)}
@media(max-width:800px){.name-card{grid-template-columns:1fr;gap:20px;padding:30px 22px}}