:root{
  --navy:#0E1542;--ink:#111847;--ground:#F4F7FC;--line:#E3E8F2;--muted:#5B6285;--text2:#3A4170;
  --accent:#FFC12E;--orange:#F7931E;--blue:#1D50B5;--sky:#2BA6E4;--eyebrow:#A84F00;
  --display:'Unbounded',system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'DM Sans',system-ui,sans-serif;color:var(--ink);background:var(--ground);font-size:17px;line-height:1.6}
[x-cloak]{display:none!important}
img,video{max-width:100%}
a{color:var(--blue)}a:hover{color:var(--ink)}
button,input,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--sky);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.wrap{max-width:1240px;margin:0 auto}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--eyebrow)}
.h2{margin:0;font-family:var(--display);font-weight:600;font-size:clamp(30px,3.8vw,52px);line-height:1.1;letter-spacing:-.01em}
.lead-text{margin:0;color:var(--text2)}
.section{padding:112px 24px;overflow:clip}
.section.white{background:#fff}
.section.navy{background:var(--navy);color:#fff}
.head{display:flex;flex-direction:column;gap:16px;max-width:720px}
.head.center{align-items:center;text-align:center;margin:0 auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:0 24px;border-radius:999px;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(17,24,71,.22)}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.btn-accent{background:var(--accent);color:var(--ink)}
.btn-dark{background:var(--ink);color:#fff}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline-light{border-color:#fff;color:#fff;background:transparent}
.btn-sm{min-height:46px;padding:0 18px;font-size:15px}
.btn-line{border-color:#D3DAE8;color:var(--ink);background:#fff}

/* progress */
.progress-wrap{position:sticky;top:0;z-index:50;height:4px;margin-bottom:-4px}
.progress-wrap>div{height:100%;background:var(--orange)}

/* header */
.header{background:#fff;border-bottom:1px solid var(--line)}
.header .wrap{padding:12px 24px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 28px}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.logo img{width:56px;height:56px;object-fit:contain}
.logo b{font-family:var(--display);font-size:20px;letter-spacing:.02em}
.nav{display:flex;flex-wrap:wrap;gap:0 28px;font-weight:500}
.nav a{color:var(--ink);text-decoration:none;padding:12px 0}
.header-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.lang{display:flex;gap:2px;border:1px solid #D3DAE8;border-radius:999px;padding:2px}
.lang button{min-height:40px;min-width:48px;border:0;border-radius:999px;padding:0 12px;font-weight:700;font-size:14px;cursor:pointer;background:transparent}
.lang button.on{background:var(--ink);color:#fff}
.lang .ta{font-family:'Hind Madurai',sans-serif;font-size:15px}

/* hero */
.hero{position:relative;padding:16px 16px 64px;overflow:clip}
.hero-card{position:relative;max-width:1408px;margin:0 auto;border-radius:32px;overflow:clip;background:var(--navy)}
.hero-media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-video{opacity:0;transition:opacity 1.2s ease}
.hero-video.ready{opacity:1}
.hero-shade{position:absolute;inset:0;background:rgba(14,21,66,.58)}
.hero-inner{position:relative;max-width:1240px;margin:0 auto;padding:88px 32px 96px;display:flex;flex-wrap:wrap;align-items:center;gap:48px 64px}
.hero-copy{flex:1 1 460px;min-width:0;display:flex;flex-direction:column;gap:24px;color:#fff}
.hero-copy .eyebrow{color:var(--accent)}
.hero h1{margin:0;font-family:var(--display);font-weight:700;font-size:clamp(38px,5vw,72px);line-height:1.06;letter-spacing:-.02em}
.hero h1.ta{font-family:'Hind Madurai',sans-serif;font-size:clamp(36px,4.6vw,64px);line-height:1.18;letter-spacing:0}
.hero h1 .hl{color:var(--accent)}
.hero p{margin:0;font-size:19px;color:#DDE3F5;max-width:480px}
.hero .ta-p{font-family:'Hind Madurai',sans-serif;font-size:20px}
.hero-ctas{display:flex;flex-wrap:wrap;gap:12px}
.ring-col{flex:1 1 420px;min-width:0;display:flex;justify-content:center}
.ring{position:relative;width:100%;max-width:560px;aspect-ratio:1/1}
.ring>svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.ring-center{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:48%;display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center}
.ring-center .live{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:700}
.ring-center .live i{width:8px;height:8px;border-radius:50%;background:#1E8E5A}
.ring-center .live i.night{background:#8A93B5}
.ring-center .kw{font-family:var(--display);font-weight:700;font-size:clamp(34px,4.4vw,60px);line-height:1}
.ring-center .kw small{font-size:.4em;margin-left:4px}
.ring-center .note{font-size:14px;line-height:1.35;color:var(--text2)}
.badge-float{position:absolute;display:flex;align-items:center;gap:10px;padding:10px 16px 10px 10px;border-radius:999px;background:#fff;box-shadow:0 14px 32px rgba(17,24,71,.14);font-size:14px;font-weight:700;line-height:1.25}
.badge-float.dark{background:var(--ink);color:#fff}
.badge-float .ic{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex:none}
.badge-float span span{font-weight:500;color:var(--muted)}
.badge-float.dark span span{color:#C9D0EC}
.stats{max-width:1240px;margin:48px auto 0;padding:0 24px;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px}
.stats b{font-family:var(--display);font-size:36px;line-height:1.1;display:block}
.stats span{font-size:15px;color:var(--muted)}
.spark{position:absolute;border-radius:50%}

/* ribbons */
.ribbons{padding:88px 0 96px;background:#fff;overflow:clip}
.ribbon-stage{position:relative;height:230px}
.ribbon{position:absolute;left:-6%;width:112%;padding:22px 0;overflow:clip}
.ribbon.one{top:36px;transform:rotate(-3deg);background:var(--accent);box-shadow:0 18px 40px rgba(247,147,30,.25)}
.ribbon.two{top:118px;transform:rotate(2.5deg);background:var(--ink);box-shadow:0 18px 40px rgba(17,24,71,.25)}
.ribbon span.b{display:flex;align-items:center;gap:28px;padding:0 28px;font-family:var(--display);font-weight:600;font-size:26px;line-height:1.2;white-space:nowrap}
.ribbon.two span.b{color:#fff}
.ribbon svg{width:22px;height:22px;fill:none;stroke-width:2.4;stroke-linecap:round}

/* solutions */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px}
.sol{position:relative;height:100%;display:flex;flex-direction:column;gap:16px;padding:32px 28px;border-radius:28px;background:#fff;border:1px solid var(--line);color:var(--ink);text-decoration:none;overflow:hidden}
.sol .num{position:absolute;top:28px;right:28px;font-family:var(--display);font-size:14px;color:var(--muted)}
.sol .ic{width:72px;height:72px;border-radius:22px;background:rgba(255,193,46,.35);display:flex;align-items:center;justify-content:center}
.sol .ic svg{width:38px;height:38px;fill:none;stroke:var(--ink);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.sol h3{margin:8px 0 0;font-family:var(--display);font-weight:600;font-size:22px}
.sol p{margin:0;color:var(--text2)}
.sol .go{margin-top:auto;padding-top:8px;font-weight:700;color:var(--blue)}
.sol .photo{margin:-32px -28px 0;aspect-ratio:16/9;object-fit:cover;width:calc(100% + 56px);max-width:none}

/* day scene */
.day-section{position:relative;height:2400px;background:var(--navy)}
.day-sticky{position:sticky;top:0;height:720px;overflow:clip}
.day-sticky svg{position:absolute;inset:0;width:100%;height:100%}
.day-ui{position:relative;height:100%;max-width:1240px;margin:0 auto;padding:40px 24px 36px;display:flex;flex-direction:column;justify-content:space-between;gap:20px}
.day-top{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:14px}
.glass{background:rgba(255,255,255,.94);border-radius:24px;padding:20px 24px;box-shadow:0 16px 40px rgba(14,21,66,.18)}
.counter{background:var(--ink);color:#fff;border-radius:24px;padding:18px 22px;min-width:200px;box-shadow:0 16px 40px rgba(14,21,66,.3)}
.counter span{font-size:13px;color:#C9D0EC;display:block}
.counter b{font-family:var(--display);font-size:42px;line-height:1.1;color:var(--accent)}
.caps{position:relative;min-height:112px;max-width:540px}
.cap{position:absolute;left:0;right:0;bottom:0;display:flex;gap:14px;align-items:center;padding:16px 20px;border-radius:20px;background:rgba(255,255,255,.95);box-shadow:0 16px 40px rgba(14,21,66,.18);font-size:16px;line-height:1.45}
.cap .t{flex:none;padding:6px 12px;border-radius:999px;background:var(--ink);color:var(--accent);font-family:var(--display);font-weight:600;font-size:14px}
.daybar{position:relative;height:6px;margin:0 11px;border-radius:999px;background:rgba(255,255,255,.55)}
.daybar .fill{position:absolute;inset:0;border-radius:999px;background:var(--orange);transform:scaleX(.5)}
.daybar .dot{position:absolute;top:50%;width:22px;height:22px;margin:-11px 0 0 -11px;border-radius:50%;background:var(--accent);border:3px solid #fff}
.daylabels{display:flex;justify-content:space-between}
.daylabels span{padding:2px 10px;border-radius:999px;background:rgba(255,255,255,.85);font-size:13px;font-weight:700}

/* solar math */
.math{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:40px 32px}
.math>div{display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center}
.math .ringbox{position:relative;width:168px;height:168px}
.math .ringbox svg.r{width:100%;height:100%;transform:rotate(-90deg)}
.math .ringbox .ic{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.math b{font-family:var(--display);font-size:clamp(40px,4.4vw,60px);line-height:1}
.math b small{font-size:.45em}
.math p{margin:0;max-width:280px;color:var(--text2)}

/* process */
.arc{position:relative;width:100%;max-width:960px;margin:0 auto;aspect-ratio:2.4/1}
.arc svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.arc .sun{position:absolute;width:140px;height:140px;transform:translate(-50%,-50%);transition:left .9s ease,top .9s ease}
.arc .sun div{width:100%;height:100%;border-radius:50%;background:radial-gradient(circle,rgba(255,193,46,.7) 0%,rgba(255,193,46,.25) 45%,rgba(255,193,46,0) 70%)}
.arc .node{position:absolute;transform:translate(-50%,-50%)}
.arc .node button{border-radius:50%;border:2px solid #B5C0D8;background:#fff;font-family:var(--display);font-weight:700;font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;width:48px;height:48px;transition:width .4s,height .4s,background .4s}
.arc .node button.done{background:var(--ink);border-color:var(--ink);color:#fff}
.arc .node button.now{background:var(--accent);border-color:var(--orange);width:64px;height:64px}
.stage-text{align-self:center;max-width:640px;text-align:center;display:flex;flex-direction:column;gap:10px;align-items:center}
.stage-text h3{margin:0;font-family:var(--display);font-weight:600;font-size:28px}

/* scrub text */
.scrub{padding:88px 0 16px;background:var(--navy);overflow:clip;display:flex;flex-direction:column;gap:8px}
.scrub>div{display:flex;width:max-content;align-items:center;gap:.35em;font-family:var(--display);font-weight:700;font-size:clamp(56px,9vw,150px);line-height:1.05;white-space:nowrap}
.scrub .solid{color:#fff}
.scrub .outline{color:transparent;-webkit-text-stroke:2px var(--accent)}
.scrub svg{width:.55em;height:.55em;flex:none;fill:none;stroke:var(--accent);stroke-width:2.4;stroke-linecap:round}

/* calculator */
.calc{display:flex;flex-wrap:wrap;gap:24px;align-items:stretch}
.calc-in{flex:1 1 340px;min-width:0;background:#172056;border:1px solid #2A3470;border-radius:28px;padding:32px;display:flex;flex-direction:column;gap:36px}
.seg{display:flex;gap:8px;flex-wrap:wrap}
.seg button{flex:1 1 120px;min-height:52px;border-radius:14px;border:1px solid #3A4373;background:transparent;color:#fff;font-weight:700;cursor:pointer}
.seg button.on{background:var(--accent);border-color:var(--accent);color:var(--ink)}
.units{font-family:var(--display);font-weight:600;font-size:34px;line-height:1.1;color:var(--accent)}
.units small{font-family:'DM Sans',sans-serif;font-size:15px;font-weight:500;color:#C9D0EC}
input[type=range]{width:100%;height:44px;accent-color:var(--accent);cursor:pointer}
.calc-out{flex:1.4 1 460px;min-width:0;background:#fff;color:var(--ink);border-radius:28px;padding:clamp(24px,3.4vw,40px);display:flex;flex-direction:column;gap:32px}
.big{font-family:var(--display);font-weight:700;font-size:clamp(40px,4.6vw,64px);line-height:1}
.big small{font-size:.42em;margin-left:6px}
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}
.tiles>div{padding:20px;border-radius:20px;display:flex;flex-direction:column;gap:2px}
.tiles span{font-size:14px;color:var(--text2)}
.tiles b{font-family:var(--display);font-weight:600;font-size:26px}
.bars{display:flex;flex-direction:column;gap:14px}
.bars .lbl{display:flex;justify-content:space-between;font-size:15px}
.track{height:14px;border-radius:999px;background:#EEF2F9;overflow:clip}
.track.full{background:var(--ink)}
.track>i{display:block;height:100%;min-width:14px;border-radius:999px;background:var(--orange);transition:width .5s}

/* why */
.why{max-width:1240px;margin:0 auto;display:flex;flex-wrap:wrap;align-items:center;gap:56px 80px}
.phone-col{flex:1 1 340px;min-width:0;display:flex;justify-content:center;position:relative;padding:40px 0}
.halo{position:absolute;left:50%;top:50%;width:min(440px,100%);aspect-ratio:1/1;transform:translate(-50%,-50%);border-radius:50%;background:#EEF4FF}
.halo2{position:absolute;left:50%;top:50%;width:min(520px,112%);aspect-ratio:1/1;transform:translate(-50%,-50%)}
.halo2>div{width:100%;height:100%;border-radius:50%;border:2px dashed #B9C9E8}
.phone{width:280px;max-width:100%;background:var(--navy);border-radius:44px;padding:12px;box-shadow:0 30px 60px rgba(14,21,66,.25)}
.phone>div{background:#fff;border-radius:34px;padding:24px 20px;display:flex;flex-direction:column;gap:16px}
.toast{position:absolute;display:flex;align-items:center;gap:10px;padding:10px 16px 10px 10px;border-radius:16px;background:#fff;box-shadow:0 14px 32px rgba(17,24,71,.16);font-size:14px;font-weight:700}
.toast.dark{background:var(--ink);color:#fff}
.toast i{width:32px;height:32px;border-radius:10px;display:flex;align-items:center;justify-content:center}
.points{flex:1 1 460px;min-width:0;display:flex;flex-direction:column;gap:32px}
.point{display:flex;gap:18px;align-items:flex-start}
.point>i{flex:none;width:52px;height:52px;border-radius:16px;background:var(--accent);display:flex;align-items:center;justify-content:center;font-family:var(--display);font-weight:700;font-style:normal}
.point h3{margin:0;font-size:20px}
.point p{margin:0;color:var(--text2)}

/* projects */
.work{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.work article{height:100%;background:#fff;border:1px solid var(--line);border-radius:24px;overflow:clip;display:flex;flex-direction:column}
.work .pic{position:relative;aspect-ratio:5/3;background:#DDEBFB}
.work .pic img,.work .pic svg{display:block;width:100%;height:100%;object-fit:cover}
.work .body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:4px}
.work .kind{font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--blue)}
.work h3{margin:0;font-size:20px}
.play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,.92);border:0;display:flex;align-items:center;justify-content:center;cursor:pointer}
.lightbox{position:fixed;inset:0;z-index:80;background:rgba(10,14,40,.9);display:flex;align-items:center;justify-content:center;padding:20px}
.lightbox video,.lightbox img{max-height:85vh;border-radius:16px}
.lightbox button{position:absolute;top:16px;right:16px;width:48px;height:48px;border-radius:50%;border:0;background:#fff;font-size:20px;cursor:pointer}

/* faq */
.faq{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:40px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item button{width:100%;min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 0;border:0;background:transparent;font-size:19px;font-weight:700;text-align:left;cursor:pointer}
.faq-item .pm{flex:none;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#EEF2F9;transition:transform .35s,background .35s}
.faq-item.open .pm{transform:rotate(45deg);background:var(--accent)}
.faq-item p{margin:0;padding:0 56px 24px 0;color:var(--text2)}

/* contact */
.contact{position:relative;background:var(--accent)}
.contact-inner{position:relative;max-width:1240px;margin:0 auto;display:flex;flex-wrap:wrap;gap:48px 72px;align-items:center}
.contact h2{margin:0;font-family:var(--display);font-weight:700;font-size:clamp(34px,4.4vw,62px);line-height:1.06;letter-spacing:-.02em}
.form{flex:1 1 420px;min-width:0;background:#fff;border-radius:28px;padding:clamp(24px,3.4vw,40px);display:flex;flex-direction:column;gap:18px;box-shadow:0 30px 60px rgba(14,21,66,.18)}
.fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px}
.field{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:700}
.field input,.field select{height:50px;border:1px solid #B9C3DA;border-radius:12px;padding:0 14px;font-size:16px;font-weight:400;background:#fff}
.form-error{padding:10px 14px;border-radius:12px;background:#FDE4E1;color:#A3261B;font-weight:600}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* footer */
.footer{background:var(--navy);color:#C9D0EC;padding:56px 24px 32px}
.footer .top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.footer .chip{width:72px;height:72px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center}
.footer .chip img{width:60px;height:60px;object-fit:contain}
.footer nav{display:flex;flex-wrap:wrap;gap:4px 28px;font-size:15px}
.footer a{color:#C9D0EC;text-decoration:none;padding:10px 0}
.footer a:hover{color:#fff}
.footer .bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;border-top:1px solid #2A3470;margin-top:40px;padding-top:24px;font-size:14px}
.footer .staff{display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:700}