:root{--bg:#05060f;--ink:#e9ecf8;--mute:#98a2c3;--line:rgba(255,255,255,.09);--glass:rgba(16,19,42,.55);--teal:#38e1c6;--violet:#8b7bff;--pink:#ff7ac6;--grad:linear-gradient(100deg,#7ef3dc,#9d8bff 55%,#ff8fd0)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;color-scheme:dark}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans","Noto Sans CJK JP",sans-serif;overflow-x:hidden}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:8px}
.skip{position:absolute;left:-999px;top:8px;background:#fff;color:#000;padding:8px 14px;border-radius:8px;z-index:50}.skip:focus{left:8px}

/* night sky */
.sky{position:fixed;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(120% 80% at 50% -10%,#101540 0,#070920 45%,var(--bg) 75%)}
.aurora{position:absolute;border-radius:50%;filter:blur(90px);opacity:.34}
.a1{width:62vw;height:42vw;left:-12vw;top:-8vw;background:var(--teal);animation:drift 22s ease-in-out infinite alternate}
.a2{width:52vw;height:36vw;right:-14vw;top:6vw;background:var(--violet);animation:drift 28s ease-in-out infinite alternate-reverse}
.a3{width:40vw;height:28vw;left:30vw;top:34vw;background:var(--pink);opacity:.14;animation:drift 34s ease-in-out infinite alternate}
.stars{position:absolute;inset:0;background-repeat:repeat}
.s1{background-image:radial-gradient(1px 1px at 20px 30px,#fff,transparent),radial-gradient(1px 1px at 120px 80px,#cfd6ff,transparent),radial-gradient(1.5px 1.5px at 210px 160px,#fff,transparent),radial-gradient(1px 1px at 300px 40px,#bfe9ff,transparent),radial-gradient(1px 1px at 380px 210px,#fff,transparent);background-size:420px 260px;opacity:.7;animation:twinkle 6s ease-in-out infinite}
.s2{background-image:radial-gradient(1.4px 1.4px at 60px 140px,#fff,transparent),radial-gradient(1px 1px at 250px 90px,#ffe3f4,transparent),radial-gradient(1px 1px at 340px 250px,#fff,transparent);background-size:520px 340px;opacity:.55;animation:twinkle 9s ease-in-out infinite reverse}
@keyframes drift{to{transform:translate3d(6vw,4vw,0) scale(1.12)}}
@keyframes twinkle{50%{opacity:.25}}

/* layout */
.wrap{width:min(1120px,calc(100% - 40px));margin:0 auto}
.nav{position:sticky;top:14px;z-index:20;margin:14px auto 0;display:flex;align-items:center;gap:22px;padding:10px 12px 10px 18px;border:1px solid var(--line);border-radius:18px;background:var(--glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.15rem;letter-spacing:.2px}
.brand svg{width:30px;height:30px;border-radius:9px}
.brand small{font-size:.62rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#07101a;background:var(--grad);padding:2px 8px;border-radius:99px}
.nav ul{display:flex;gap:6px;list-style:none;margin:0 auto 0 12px;padding:0}
.nav ul a{padding:7px 12px;border-radius:10px;color:var(--mute);font-size:.94rem;transition:.15s}.nav ul a:hover{color:var(--ink);background:rgba(255,255,255,.06)}
.status{display:flex;align-items:center;gap:8px;font-size:.82rem;color:var(--mute);padding:6px 12px;border:1px solid var(--line);border-radius:99px}
.status i{width:8px;height:8px;border-radius:50%;background:#7a8099;box-shadow:0 0 0 0 transparent}
.status[data-state=ok] i{background:#3ee08f;animation:pulse 2.4s infinite}
.status[data-state=ok] b{color:#bff5d6}
.status[data-state=bad] i{background:#ff6b7a}.status[data-state=bad] b{color:#ffc4ca}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(62,224,143,.55)}70%,100%{box-shadow:0 0 0 9px rgba(62,224,143,0)}}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:12px;font-weight:600;font-size:.95rem;border:1px solid var(--line);background:rgba(255,255,255,.05);transition:.18s}
.btn:hover{background:rgba(255,255,255,.1);transform:translateY(-1px)}
.btn.primary{background:var(--grad);color:#07101a;border-color:transparent;box-shadow:0 8px 30px -8px rgba(157,139,255,.65)}
.btn.primary:hover{box-shadow:0 12px 36px -8px rgba(157,139,255,.9)}

/* hero */
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center;padding:84px 0 70px}
.eyebrow{display:inline-block;margin:0 0 18px;font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;color:var(--teal);padding:6px 14px;border:1px solid rgba(56,225,198,.28);border-radius:99px;background:rgba(56,225,198,.07)}
h1{font-size:clamp(2.4rem,5.6vw,4.3rem);line-height:1.04;letter-spacing:-.025em;margin:0 0 20px;font-weight:800}
h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:1.14rem;color:var(--mute);max-width:34em;margin:0 0 30px}
.cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:30px}.cta.center{justify-content:center;margin-bottom:0}
.chips{display:flex;gap:8px;flex-wrap:wrap;list-style:none;margin:0;padding:0}
.chips li{font-size:.8rem;color:#c9d0ee;padding:5px 12px;border:1px solid var(--line);border-radius:99px;background:rgba(255,255,255,.04)}
.visual{margin:0;position:relative;filter:drop-shadow(0 30px 60px rgba(60,40,160,.35))}
.visual svg{display:block;width:100%;height:auto}
.float{position:absolute;padding:8px 13px;font-size:.78rem;font-weight:600;border:1px solid var(--line);border-radius:12px;background:rgba(10,12,32,.82);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);animation:bob 6s ease-in-out infinite}
.float::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:8px;background:var(--teal)}
.f1{left:-4%;top:14%}.f2{right:-3%;top:44%;animation-delay:-2s}.f2::before{background:var(--pink)}.f3{right:7%;bottom:-10%;animation-delay:-4s}.f3::before{background:var(--violet)}
@keyframes bob{50%{transform:translateY(-8px)}}
.seg{fill:url(#segfill);animation:load 4.2s ease-in-out infinite}
.seg:nth-child(2){animation-delay:.15s}.seg:nth-child(3){animation-delay:.3s}.seg:nth-child(4){animation-delay:.45s}.seg:nth-child(5){animation-delay:.6s}.seg:nth-child(6){animation-delay:.75s}
.seg:nth-child(7){animation-delay:.9s}.seg:nth-child(8){animation-delay:1.05s}.seg:nth-child(9){animation-delay:1.2s}.seg:nth-child(10){animation-delay:1.35s}.seg:nth-child(11){animation-delay:1.5s}.seg:nth-child(12){animation-delay:1.65s}
@keyframes load{0%,6%{opacity:.14}22%,86%{opacity:1}100%{opacity:.14}}
.head{animation:scrub 8s linear infinite;transform-box:fill-box}
@keyframes scrub{from{transform:translateX(0)}to{transform:translateX(300px)}}
.twk{animation:twinkle 4s ease-in-out infinite}

/* sections */
section{padding:56px 0}
.kicker{font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;color:var(--violet);margin:0 0 10px}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem);line-height:1.15;letter-spacing:-.02em;margin:0 0 14px}
.sub{color:var(--mute);max-width:40em;margin:0 0 34px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{position:relative;padding:24px;border:1px solid var(--line);border-radius:20px;background:var(--glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);transition:.2s}
.card:hover{transform:translateY(-4px);border-color:rgba(157,139,255,.4)}
.card .ic{display:grid;place-items:center;width:44px;height:44px;margin-bottom:16px;border-radius:13px;background:linear-gradient(135deg,rgba(56,225,198,.18),rgba(139,123,255,.18));border:1px solid rgba(255,255,255,.1)}
.card .ic svg{width:22px;height:22px;stroke:#cfd8ff;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card h3{margin:0 0 8px;font-size:1.08rem}.card p{margin:0;color:var(--mute);font-size:.95rem}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;counter-reset:s}
.step{position:relative;padding:26px 24px 24px;border:1px solid var(--line);border-radius:20px;background:var(--glass)}
.step::before{counter-increment:s;content:"0" counter(s);display:block;font-size:2.3rem;font-weight:800;line-height:1;margin-bottom:12px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.step h3{margin:0 0 8px}.step p{margin:0;color:var(--mute);font-size:.95rem}.step code{font:.85em ui-monospace,Menlo,monospace;color:#cfd8ff;background:rgba(255,255,255,.07);padding:1px 6px;border-radius:6px}
.specs{border:1px solid var(--line);border-radius:20px;background:var(--glass);overflow:hidden}
.specs div{display:grid;grid-template-columns:200px 1fr;gap:18px;padding:15px 24px;border-bottom:1px solid var(--line)}.specs div:last-child{border-bottom:0}
.specs dt{color:var(--mute);font-size:.92rem}.specs dd{margin:0}
.specs{margin:0}
.band{margin:30px 0 20px;text-align:center;padding:56px 24px;border:1px solid rgba(157,139,255,.25);border-radius:28px;background:radial-gradient(80% 140% at 50% 0,rgba(139,123,255,.2),transparent 70%),var(--glass)}
.band h2{margin-bottom:10px}.band p{color:var(--mute);max-width:36em;margin:0 auto 24px}
footer{margin-top:40px;border-top:1px solid var(--line);padding:34px 0 46px;color:var(--mute);font-size:.92rem}
footer .row{display:flex;gap:24px;flex-wrap:wrap;justify-content:space-between;align-items:center}
footer nav{display:flex;gap:20px;flex-wrap:wrap}footer a:hover{color:var(--ink)}

@media(max-width:900px){.hero{grid-template-columns:1fr;padding-top:54px}.grid,.steps{grid-template-columns:1fr 1fr}.nav ul{display:none}.nav{gap:12px}.nav .status{margin-left:auto}.f1{left:0}.f2{right:0}}
@media(max-width:600px){.grid,.steps{grid-template-columns:1fr}.specs div{grid-template-columns:1fr;gap:2px}.nav .status b{display:none}.hero{padding-bottom:40px}.float{display:none}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.seg{opacity:1}}