/* Hyperion Energy Systems — dark industrial */
:root{
  --bg:#0A0C0D; --surface:#121517; --surface-2:#191D20; --surface-3:#22272B;
  --line:#272D31; --line-2:#394148; --text:#EDEFF0; --muted:#9AA3A8; --muted-2:#6E777D;
  --volt:#C8F751; --volt-dk:#A4CE32; --amber:#FF9F1C;
  --wrap:1320px; --gut:28px; --r:3px; --r-lg:14px;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Roboto,Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px}
body{margin:0;background:var(--bg);color:var(--muted);font-family:var(--sans);font-size:16.5px;
  line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{max-width:100%;display:block}
a{color:var(--volt);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{color:var(--text);margin:0 0 .5em;line-height:1.08;font-weight:700;letter-spacing:-.03em}
h1{font-size:clamp(2.6rem,6vw,5rem);letter-spacing:-.045em}
h2{font-size:clamp(1.9rem,3.8vw,3.1rem);letter-spacing:-.038em}
h3{font-size:1.2rem;letter-spacing:-.02em}
h4{font-size:.95rem}
p{margin:0 0 1.1em}
ul{margin:0 0 1.1em;padding-left:1.15em}
li{margin-bottom:.5em}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gut)}
.sec{padding:120px 0}
.sec-sm{padding:72px 0}
.skip{position:absolute;left:-9999px;background:var(--volt);color:#0A0C0D;padding:12px 20px;z-index:999}
.skip:focus{left:0;top:0}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.22,.8,.3,1),transform .7s cubic-bezier(.22,.8,.3,1);transition-delay:var(--d,0ms)}
.reveal.in{opacity:1;transform:none}
.reveal-s{opacity:0;transform:scale(.975);transition:opacity .8s ease,transform .9s cubic-bezier(.22,.8,.3,1);transition-delay:var(--d,0ms)}
.reveal-s.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal,.reveal-s{opacity:1!important;transform:none!important;transition:none!important}html{scroll-behavior:auto}}
.kicker{font-family:var(--mono);font-size:.7rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--volt);margin:0 0 1.4rem;display:block}
.idx{font-family:var(--mono);font-size:.7rem;letter-spacing:.2em;color:var(--muted-2)}
.lede{font-size:1.1rem;line-height:1.72;color:var(--muted)}
.sec-hd{display:grid;grid-template-columns:auto 1fr;gap:56px;align-items:end;padding-bottom:34px;border-bottom:1px solid var(--line);margin-bottom:56px}
.sec-hd h2{margin:0;max-width:16ch}
.sec-hd .side{max-width:420px;padding-bottom:.4rem}
.sec-hd .side p{margin:0;font-size:.98rem}
.btn{display:inline-flex;align-items:center;gap:.7rem;font:inherit;font-size:.78rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;padding:16px 28px;border-radius:var(--r);border:1px solid transparent;cursor:pointer;white-space:nowrap;text-decoration:none;transition:.2s}
.btn:hover{text-decoration:none}
.btn-volt{background:var(--volt);color:#0A0C0D;border-color:var(--volt)}
.btn-volt:hover{background:#D9FF6B;border-color:#D9FF6B}
.btn-line{background:transparent;color:var(--text);border-color:var(--line-2)}
.btn-line:hover{border-color:var(--volt);color:var(--volt)}
.btn-row{display:flex;gap:14px;flex-wrap:wrap}
.arrow{width:46px;height:46px;border-radius:50%;background:var(--volt);color:#0A0C0D;display:inline-flex;align-items:center;justify-content:center;flex:none;transition:.22s}
.arrow:hover{background:#D9FF6B;transform:translateX(4px)}
.util{background:#06080A;border-bottom:1px solid var(--line);font-size:.73rem;font-family:var(--mono);letter-spacing:.08em;color:var(--muted-2)}
.util-in{display:flex;gap:28px;align-items:center;height:38px;flex-wrap:wrap}
.util a{color:var(--muted-2)}
.util a:hover{color:var(--volt);text-decoration:none}
.util .sp{margin-left:auto}
.hdr{position:sticky;top:0;z-index:100;background:rgba(10,12,13,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;gap:30px;height:74px}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand:hover{text-decoration:none}
.brand-mk{width:30px;height:30px}
.brand-nm{font-size:1.02rem;font-weight:700;color:var(--text);letter-spacing:-.02em}
.brand-nm span{color:var(--volt)}
.nav{display:flex;align-items:center;margin-left:auto}
.nav a{font-size:.73rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);padding:12px 18px;transition:color .16s}
.nav a:hover,.nav a.on{color:var(--volt);text-decoration:none}
.hdr-cta{margin-left:18px;padding:12px 22px!important}
.burger{display:none;margin-left:auto;width:44px;height:38px;border:1px solid var(--line-2);border-radius:var(--r);background:none;cursor:pointer;align-items:center;justify-content:center}
.burger span,.burger span::before,.burger span::after{display:block;width:16px;height:1.5px;background:var(--text)}
.burger span{position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0}
.burger span::before{top:-5px}.burger span::after{top:5px}
.hero{position:relative;min-height:min(78vh,720px);display:flex;align-items:flex-end;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(72deg,rgba(6,8,10,.94) 0%,rgba(6,8,10,.72) 42%,rgba(6,8,10,.3) 100%),linear-gradient(0deg,rgba(6,8,10,.9) 0%,rgba(6,8,10,0) 56%)}
.hero-in{position:relative;z-index:2;width:100%;padding:0 0 76px}
.hero h1{max-width:15ch;margin-bottom:1rem}
.hero .lede{max-width:46ch;font-size:1.15rem;margin-bottom:2.2rem}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:1.6rem}
.htag{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--volt);border:1px solid rgba(200,247,81,.34);padding:6px 13px;border-radius:999px}
.metrics{border-bottom:1px solid var(--line);background:var(--surface)}
.metrics-in{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:34px 30px;border-left:1px solid var(--line)}
.metric:first-child{border-left:0;padding-left:0}
.metric b{display:block;font-size:2.1rem;font-weight:700;color:var(--text);letter-spacing:-.045em;line-height:1;margin-bottom:8px;white-space:nowrap}
.metric b em{font-style:normal;color:var(--volt)}
.metric span{font-size:.8rem;color:var(--muted-2);line-height:1.45;display:block}
.sol{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.sol-card{position:relative;border-radius:var(--r-lg);overflow:hidden;min-height:430px;display:flex;flex-direction:column;justify-content:space-between;padding:34px;background:var(--surface);isolation:isolate;transition:transform .35s cubic-bezier(.22,.8,.3,1)}
.sol-card:hover{transform:translateY(-5px)}
.sol-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .6s cubic-bezier(.22,.8,.3,1)}
.sol-card:hover img{transform:scale(1.05)}
.sol-card::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(170deg,rgba(6,8,10,.62) 0%,rgba(6,8,10,.86) 58%,rgba(6,8,10,.96) 100%)}
.sol-stats{display:flex;gap:28px;flex-wrap:wrap}
.sol-stat{display:flex;align-items:center;gap:10px}
.sol-stat svg{color:var(--volt);flex:none}
.sol-stat b{font-size:1.4rem;font-weight:700;color:var(--text);letter-spacing:-.035em;line-height:1}
.sol-stat i{font-style:normal;font-size:.64rem;color:var(--muted-2);letter-spacing:.1em;text-transform:uppercase;display:block;margin-top:3px}
.sol-bd h3{font-size:1.65rem;letter-spacing:-.032em;margin-bottom:.6rem;max-width:14ch}
.sol-bd p{font-size:.95rem;margin-bottom:1.6rem;max-width:44ch;color:var(--muted)}
.prow{display:grid;grid-template-columns:70px 1fr 300px 220px;gap:32px;align-items:center;padding:30px 0;border-bottom:1px solid var(--line);transition:background .25s}
.prow:first-of-type{border-top:1px solid var(--line)}
.prow:hover{background:var(--surface)}
.prow-fig{width:70px}
.prow-fig svg{width:100%;height:auto}
.prow-main h3{margin-bottom:.35rem}
.prow-main p{font-size:.9rem;margin:0;color:var(--muted);max-width:52ch}
.prow-code{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;color:var(--volt);text-transform:uppercase;margin-bottom:.4rem;display:block}
.prow-sp{list-style:none;padding:0;margin:0;font-size:.8rem}
.prow-sp li{display:flex;justify-content:space-between;gap:12px;margin:0;padding:3px 0}
.prow-sp li span:first-child{color:var(--muted-2)}
.prow-sp li span:last-child{color:var(--text);font-family:var(--mono);font-size:.76rem}
.prow-act{display:flex;gap:10px;justify-content:flex-end}
.specblk{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);overflow:hidden}
.specblk-hd{display:flex;gap:26px;align-items:center;padding:30px 32px;border-bottom:1px solid var(--line);background:var(--surface-2)}
.specblk-hd svg{width:84px;flex:none}
.specblk-hd img{width:112px;height:auto;flex:none;object-fit:contain}
.prow-fig img{width:100%;height:auto;object-fit:contain}
.specblk-hd h3{margin:0 0 .25rem;font-size:1.45rem;letter-spacing:-.03em}
.specblk-hd p{margin:0;font-size:.9rem}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:.7rem}
.tag{font-family:var(--mono);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line-2);padding:4px 10px;border-radius:var(--r)}
table{width:100%;border-collapse:collapse;font-size:.88rem}
tbody td{padding:14px 32px;border-bottom:1px solid var(--line);vertical-align:top}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:var(--surface-2)}
tbody td:first-child{color:var(--text);font-weight:600;width:42%}
td.num{font-family:var(--mono);font-size:.82rem;color:var(--volt)}
thead th{text-align:left;padding:14px 32px;font-family:var(--mono);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);border-bottom:1px solid var(--line);background:var(--surface-2)}
.cards{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.c3{grid-template-columns:repeat(3,1fr)}
.c2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--bg);padding:38px 32px;transition:background .25s}
.card:hover{background:var(--surface)}
.card .idx{display:block;margin-bottom:1.4rem}
.card h3{font-size:1.08rem;margin-bottom:.6rem}
.card p{font-size:.92rem;margin:0;color:var(--muted)}
.card svg.ic{color:var(--volt);margin-bottom:1.1rem}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:44px}
.chip{font:inherit;font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;padding:10px 18px;border-radius:var(--r);border:1px solid var(--line-2);background:transparent;color:var(--muted);cursor:pointer;transition:.18s}
.chip:hover{border-color:var(--volt);color:var(--volt)}
.chip.on{background:var(--volt);border-color:var(--volt);color:#0A0C0D;font-weight:700}
.split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.split-3{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:start}
.media{border-radius:var(--r-lg);overflow:hidden;aspect-ratio:4/3;background:var(--surface)}
.media img{width:100%;height:100%;object-fit:cover}
.cta{position:relative;border-radius:var(--r-lg);overflow:hidden;isolation:isolate;padding:80px 60px}
.cta img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.cta::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(6,8,10,.95) 0%,rgba(6,8,10,.84) 58%,rgba(6,8,10,.62) 100%)}
.cta h2{max-width:18ch;margin-bottom:.8rem}
.cta p{max-width:52ch;margin-bottom:2rem}
.form{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);padding:38px}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.fld{display:flex;flex-direction:column;margin-bottom:18px}
.fld.full{grid-column:1/-1}
.fld label{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);margin-bottom:8px}
.fld .req{color:var(--amber)}
.fld input,.fld textarea{font:inherit;font-size:.94rem;padding:13px 15px;border:1px solid var(--line-2);border-radius:var(--r);background:var(--bg);color:var(--text);width:100%;transition:.18s}
.fld textarea{resize:vertical;min-height:130px;line-height:1.6}
.fld input:focus,.fld textarea:focus{outline:none;border-color:var(--volt);box-shadow:0 0 0 3px rgba(200,247,81,.13)}
.fld .hint{font-size:.78rem;color:var(--muted-2);margin-top:7px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.fmsg{padding:14px 18px;border-radius:var(--r);font-size:.9rem;margin-bottom:20px;display:none}
.fmsg.ok{display:block;background:rgba(200,247,81,.1);border:1px solid var(--volt-dk);color:var(--volt)}
.fmsg.err{display:block;background:rgba(255,90,90,.1);border:1px solid #D45;color:#F99}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:.84rem;color:var(--muted-2);line-height:1.56;font-family:var(--sans);letter-spacing:0;text-transform:none}
.consent input{width:auto;flex:none;margin-top:4px}
.mdl{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:24px}
.mdl.open{display:flex}
.mdl-bg{position:absolute;inset:0;background:rgba(4,6,7,.76);backdrop-filter:blur(5px)}
.mdl-bx{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);max-width:660px;width:100%;max-height:88vh;overflow-y:auto;animation:pop .3s cubic-bezier(.22,.8,.3,1)}
@keyframes pop{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.mdl-hd{padding:32px 34px 0;display:flex;justify-content:space-between;gap:18px;align-items:flex-start}
.mdl-hd h3{font-size:1.4rem;margin-bottom:.3rem}
.mdl-hd p{font-size:.88rem;margin:0;color:var(--muted-2)}
.mdl-x{background:none;border:0;font-size:1.7rem;line-height:1;color:var(--muted-2);cursor:pointer;padding:0 4px}
.mdl-x:hover{color:var(--volt)}
.mdl-bd{padding:26px 34px 34px}
.crow{display:flex;gap:18px;padding:24px 0;border-bottom:1px solid var(--line)}
.crow:last-child{border-bottom:0}
.crow-ic{color:var(--volt);flex:none;margin-top:3px}
.crow-bd h4{margin-bottom:.25rem}
.crow-bd p{margin:0;font-size:.92rem}
.ftr{border-top:1px solid var(--line);padding:70px 0 34px;background:#06080A}
.ftr-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;padding-bottom:50px}
.ftr h4{font-family:var(--mono);font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted-2);margin-bottom:1.2rem}
.ftr ul{list-style:none;padding:0;margin:0}
.ftr li{margin-bottom:.6rem}
.ftr a{color:var(--muted);font-size:.9rem}
.ftr a:hover{color:var(--volt);text-decoration:none}
.ftr-mark{font-size:clamp(2.4rem,9vw,7rem);font-weight:700;letter-spacing:-.05em;color:var(--surface-3);line-height:.9;padding:34px 0 26px;border-top:1px solid var(--line);user-select:none}
.ftr-bot{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;color:var(--muted-2)}
@media (max-width:1100px){
  .sol{grid-template-columns:1fr}
  .prow{grid-template-columns:56px 1fr;gap:22px}
  .prow-sp,.prow-act{grid-column:2}
  .prow-act{justify-content:flex-start;margin-top:6px}
  .c3{grid-template-columns:repeat(2,1fr)}
  .split,.split-3{grid-template-columns:1fr;gap:44px}
  .sec-hd{grid-template-columns:1fr;gap:22px;align-items:start}
  .metrics-in{grid-template-columns:repeat(2,1fr)}
  .metric{border-left:0;padding-left:0}
  .ftr-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:760px){
  .sec{padding:76px 0}
  .nav{display:none;position:absolute;top:74px;left:0;right:0;background:var(--surface);flex-direction:column;align-items:stretch;padding:12px var(--gut) 18px;border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .nav a{padding:14px 10px}
  .burger{display:flex}
  .hdr-cta,.util .sp{display:none}
  .hero{min-height:auto;padding-top:120px}
  .hero-in{padding-bottom:56px}
  .c3,.c2{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr}
  .ftr-grid{grid-template-columns:1fr;gap:28px}
  .cta{padding:48px 26px}
  .form{padding:26px 22px}
  .specblk-hd{flex-direction:column;align-items:flex-start;gap:18px}
  tbody td,thead th{padding-left:22px;padding-right:22px}
}


/* ---- homepage product zigzag ---- */
.pzig{display:flex;flex-direction:column}
.pz{display:grid;grid-template-columns:1fr 1fr;gap:66px;align-items:center;
  padding:74px 0;border-bottom:1px solid var(--line)}
.pz:first-child{padding-top:24px}
.pz:last-child{border-bottom:0}
.pz-fig{order:1}
.pz-bd{order:2}
.pz:nth-child(even) .pz-fig{order:2}
.pz:nth-child(even) .pz-bd{order:1}
.pz-fig{position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);min-height:360px;display:flex;align-items:center;
  justify-content:center;padding:44px;overflow:hidden}
.pz-fig img{max-width:100%;max-height:270px;width:auto;height:auto;object-fit:contain;
  transition:transform .5s cubic-bezier(.22,.8,.3,1)}
.pz:hover .pz-fig img{transform:scale(1.05)}
.pz-idx{position:absolute;top:20px;left:22px;font-family:var(--mono);font-size:.72rem;
  letter-spacing:.2em;color:var(--muted-2)}
.pz-code{font-family:var(--mono);font-size:.68rem;letter-spacing:.15em;text-transform:uppercase;
  color:var(--volt);display:block;margin-bottom:.7rem}
.pz-bd h3{font-size:clamp(1.5rem,2.4vw,2rem);letter-spacing:-.032em;margin-bottom:.7rem}
.pz-bd p{font-size:.96rem;color:var(--muted);margin-bottom:1.5rem;max-width:50ch}
.pz-sp{list-style:none;padding:0;margin:0 0 1.7rem;font-size:.84rem;max-width:460px}
.pz-sp li{display:flex;justify-content:space-between;gap:14px;margin:0;padding:9px 0;
  border-top:1px solid var(--line)}
.pz-sp li span:first-child{color:var(--muted-2)}
.pz-sp li span:last-child{color:var(--text);font-family:var(--mono);font-size:.78rem;text-align:right}
.pz-buy{display:flex;gap:0;border:1px solid var(--line-2);border-radius:var(--r);
  margin-bottom:1.7rem;max-width:580px;overflow:hidden}
.pz-buy-i{flex:1;padding:14px 18px;border-left:1px solid var(--line-2)}
.pz-buy-i:first-child{border-left:0}
.pz-buy-i span{display:block;font-family:var(--mono);font-size:.6rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted-2);margin-bottom:5px}
.pz-buy-i b{font-size:.98rem;color:var(--text);font-weight:650;letter-spacing:-.01em;
  display:block;line-height:1.25}
.pz-price{color:var(--volt)!important;font-family:var(--mono);font-size:.88rem!important;white-space:nowrap}
.pz-buy-n b{color:var(--muted)}
.pz-ft{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:1040px){
  .pz{grid-template-columns:1fr;gap:34px;padding:56px 0}
  .pz-fig,.pz-bd,.pz:nth-child(even) .pz-fig,.pz:nth-child(even) .pz-bd{order:unset}
  .pz-fig{min-height:280px}
  .pz-fig img{max-height:210px}
}
@media (max-width:620px){
  .pz-buy{flex-direction:column;max-width:none}
  .pz-buy-i{border-left:0;border-top:1px solid var(--line-2)}
  .pz-buy-i:first-child{border-top:0}
}

/* Preserve the shared page gutter in the full-width hero. */
.hero-in{padding-inline:var(--gut)}