:root{
  --brand:#0b4ea2; --brand-2:#1677ff; --star:#f39a1e;
  --ink:#0f172a; --ink-2:#334155; --muted:#5b6b82; --line:#e2e8f0;
  --bg:#f7f9fc; --surface:#fff; --alt:#eef3fa;
  --navy:#06142a; --navy-2:#0c2142; --navy-3:#163160; --on-navy:#e6eefb; --on-navy-2:#9fb3d1;
  --signal:#38d6f5; --ok:#16a34a; --warn:#f59e0b; --danger:#ef4444;
  --eco:#0f9f6e; --eco-2:#10b981; --eco-bg:#ecfaf3;
  --r:14px; --r-sm:10px;
  --shadow:0 1px 2px rgba(15,23,42,.06),0 8px 24px rgba(15,23,42,.06);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  --num:"DIN Alternate","Bahnschrift","Segoe UI",var(--font);
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 var(--font);overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
button{font:inherit;cursor:pointer;touch-action:manipulation}
:focus-visible{outline:3px solid var(--brand-2);outline-offset:2px;border-radius:6px}
[hidden]{display:none!important}
.skip{position:absolute;left:-999px;top:8px;background:#fff;padding:8px 12px;z-index:1000}
.skip:focus{left:8px}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.hide-sm{display:inline}
b,strong{font-weight:700}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:999px;border:1px solid transparent;text-decoration:none;font-weight:600;transition:transform .2s var(--ease),background .2s,box-shadow .2s}
.btn:active{transform:scale(.97)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--brand-2);color:#fff;box-shadow:0 6px 18px rgba(22,119,255,.35)}
.btn-primary:hover{background:#0f63d8}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff;background:rgba(255,255,255,.06)}
.btn-ghost:hover{background:rgba(255,255,255,.14)}
.btn-ghost-dark{border-color:rgba(255,255,255,.3);color:var(--on-navy);background:transparent}
.btn-eco{background:var(--eco);color:#fff}
.btn-eco:hover{background:#0b8a5f}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:background .3s,box-shadow .3s;color:#fff}
.nav.solid{background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);box-shadow:0 1px 0 var(--line);color:var(--ink)}
.nav-in{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;font-size:20px;letter-spacing:.04em}
.brand img{width:36px;height:auto}
.nav:not(.solid) .brand img{filter:brightness(0) invert(1)}
.brand small{display:block;font-size:11px;font-weight:500;letter-spacing:.08em;opacity:.75;margin-top:-4px}
.nav-links{display:flex;gap:4px;margin-left:auto}
.nav-links a{text-decoration:none;padding:8px 12px;border-radius:8px;font-size:15px;opacity:.85}
.nav-links a:hover,.nav-links a.on{opacity:1;background:rgba(127,127,127,.12)}
.progress{position:absolute;left:0;bottom:0;height:2px;width:0;background:linear-gradient(90deg,var(--brand-2),var(--signal))}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100vh;min-height:100dvh;display:flex;align-items:center;background:radial-gradient(1200px 600px at 75% 20%,#123b78 0%,transparent 60%),linear-gradient(160deg,#071a36 0%,#04101f 100%);color:#fff;overflow:hidden;padding:110px 0 64px}
.hero-wave{position:absolute;top:0;left:0;width:100%;height:100%;opacity:.9}
.hero-in{position:relative}
.eyebrow{display:inline-block;font-size:14px;letter-spacing:.06em;color:var(--signal);border:1px solid rgba(56,214,245,.35);padding:4px 14px;border-radius:999px;margin:0 0 20px}
.hero h1{font-size:clamp(32px,5.4vw,64px);line-height:1.2;margin:0 0 20px;font-weight:800;letter-spacing:.01em}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#5fb2ff,var(--signal));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:clamp(16px,1.6vw,19px);color:#c4d3ea;max-width:760px;margin:0 0 32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:56px}
.hero-stats{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.12);border-radius:var(--r);overflow:hidden;max-width:960px}
.hero-stats li{background:rgba(6,20,42,.72);padding:18px 20px;backdrop-filter:blur(4px)}
.hero-stats b{display:block;font:700 clamp(24px,3vw,34px)/1.2 var(--num);font-variant-numeric:tabular-nums;color:#fff}
.hero-stats span{font-size:13px;color:var(--on-navy-2)}

/* ---------- sections ---------- */
.sec{padding:96px 0}
.sec-alt{background:var(--alt)}
.sec-eco{background:linear-gradient(180deg,var(--eco-bg),#fff)}
.sec-head{max-width:820px;margin-bottom:44px}
.kicker{font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--brand-2);margin:0 0 10px}
.kicker-eco{color:var(--eco)}
.kicker-dark{color:var(--signal)}
.sec h2{font-size:clamp(26px,3.4vw,40px);line-height:1.3;margin:0 0 14px;font-weight:800}
.sub{color:var(--muted);font-size:17px;margin:0}
.sub strong{color:var(--ink)}
.note{font-size:13px;color:var(--muted);margin:14px 0 0}
.insight{background:#fff;border-left:4px solid var(--brand-2);padding:12px 16px;border-radius:8px;margin:16px 0 0;font-size:15px;color:var(--ink-2)}

.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js .reveal.in{opacity:1;transform:none}

/* ---------- cause ---------- */
.cause{display:grid;grid-template-columns:220px 1fr 260px;align-items:center;gap:0;max-width:880px;margin:0 auto 48px}
.cause-list{display:grid;gap:14px}
.cause-item{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 16px;font-weight:600;box-shadow:var(--shadow)}
.ic{width:28px;height:28px;border-radius:8px;background:#fff4e6 center/16px no-repeat url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23f39a1e' stroke-width='2.4' stroke-linejoin='round'%3E%3Cpath d='M13 2 4 14h7l-1 8 9-12h-7z'/%3E%3C/svg%3E")}
.cause-flow{width:100%;height:220px}
.cause-flow path{fill:none;stroke:#f3b25b;stroke-width:2;stroke-dasharray:6 8;animation:dash 1.2s linear infinite}
.cause-arc{position:relative;text-align:center;background:linear-gradient(160deg,#2a0b07,#4d1209);color:#ffd9c2;border-radius:var(--r);padding:28px 18px;box-shadow:0 10px 30px rgba(220,60,20,.25)}
.cause-arc b{display:block;font-size:20px;color:#fff}
.cause-arc span{font-size:13px}
.spark{width:64px;height:64px;margin:0 auto 10px;border-radius:50%;background:radial-gradient(circle,#fff 0 12%,#ffd27a 25%,#ff6a2b 45%,transparent 70%);animation:flicker .18s steps(2) infinite}
@keyframes flicker{0%{transform:scale(.9) rotate(0);opacity:.8}100%{transform:scale(1.1) rotate(25deg);opacity:1}}
@keyframes dash{to{stroke-dashoffset:-28}}

.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:960px;margin:0 auto}
.cmp{border-radius:var(--r);padding:26px 28px;border:1px solid var(--line);background:#fff}
.cmp h3{margin:0 0 12px;font-size:19px}
.cmp ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.cmp li{padding-left:28px;position:relative}
.cmp li::before{content:"";position:absolute;left:0;top:5px;width:18px;height:18px;border-radius:50%;background:center/12px no-repeat}
.cmp li.yes::before{background-color:#e6f6ec;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2316a34a' stroke-width='3.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12 5 5 9-10'/%3E%3C/svg%3E")}
.cmp li.no::before{background-color:#fdecec;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ef4444' stroke-width='3.5' stroke-linecap='round'%3E%3Cpath d='M6 6l12 12M18 6 6 18'/%3E%3C/svg%3E")}
.cmp-old{color:var(--ink-2)}
.cmp-new{border:2px solid var(--brand-2);box-shadow:0 12px 32px rgba(22,119,255,.12)}
.cmp-new h3{color:var(--brand)}

/* ---------- architecture ---------- */
.arch{position:relative;background:#fff;border-radius:20px;padding:32px;box-shadow:var(--shadow)}
.arch-nodes{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:64px}
/* 节点之间的数据流：上行蓝色向右，下行橙色向左 */
.arch-node:not(:last-child)::before,.arch-node:not(:last-child)::after{content:"";position:absolute;left:100%;margin-left:2px;width:60px;height:4px;border-radius:2px;pointer-events:none}
.arch-node:not(:last-child)::before{top:calc(50% - 8px);background:repeating-linear-gradient(90deg,var(--brand-2) 0 6px,transparent 6px 16px);background-size:16px 4px;animation:flowR .6s linear infinite}
.arch-node:not(:last-child)::after{top:calc(50% + 6px);background:repeating-linear-gradient(90deg,var(--star) 0 6px,transparent 6px 16px);background-size:16px 4px;animation:flowL .9s linear infinite}
@keyframes flowR{to{background-position:16px 0}}
@keyframes flowL{to{background-position:-16px 0}}
.arch-node{position:relative;background:#fff;border:2px solid var(--line);border-radius:var(--r);padding:16px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:4px;transition:border-color .2s,transform .2s,box-shadow .2s;color:var(--ink)}
.arch-node:hover{transform:translateY(-3px)}
.arch-node.active{border-color:var(--brand-2);box-shadow:0 10px 30px rgba(22,119,255,.18)}
.arch-img{height:150px;width:100%;display:flex;align-items:center;justify-content:center}
.arch-img img{max-height:150px;width:auto;object-fit:contain}
.arch-cloud{color:var(--brand-2)}
.arch-cloud svg{width:110px;height:110px}
.arch-node b{font-size:16px}
.arch-node small{color:var(--muted);font-size:13px}
.arch-legend{display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:center;font-size:13px;color:var(--muted);margin:18px 0 0}
.arch-legend i{display:inline-block;width:22px;height:3px;border-radius:2px;vertical-align:middle;margin-right:6px}
.lg-up{background:linear-gradient(90deg,var(--brand-2),var(--signal))}.lg-down{background:var(--star)}
.arch-desc{margin-top:20px;background:var(--alt);border-radius:var(--r-sm);padding:16px 20px;color:var(--ink-2);min-height:84px}
.arch-desc h4{margin:0 0 4px;color:var(--brand)}
.arch-desc p{margin:0}

/* ---------- lab (dark) ---------- */
.lab{background:radial-gradient(900px 500px at 10% 0%,#10305f 0%,transparent 60%),var(--navy);color:var(--on-navy)}
.lab .sub{color:var(--on-navy-2)}
.lab .sub strong{color:#fff}
.lab .note{color:var(--on-navy-2)}
.arc{display:grid;grid-template-columns:260px 1fr;grid-template-areas:"ctrl scope" "pipe pipe" "brk brk" "note note";gap:20px}
.arc>.note{grid-area:note;margin:0}
.arc-ctrl{grid-area:ctrl;background:var(--navy-2);border:1px solid var(--navy-3);border-radius:var(--r);padding:18px}
.ctrl-label{font-size:13px;color:var(--on-navy-2);margin:0 0 10px}
.ctrl-label+.chips{margin-bottom:18px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips button{min-height:40px;padding:0 14px;border-radius:999px;border:1px solid var(--navy-3);background:transparent;color:var(--on-navy);font-size:14px;transition:all .2s}
.chips button[aria-checked=true]{background:var(--brand-2);border-color:var(--brand-2);color:#fff}
.seg{display:grid;grid-template-columns:1fr 1fr;background:#0a1a34;border:1px solid var(--navy-3);border-radius:12px;padding:4px;gap:4px}
.seg button{min-height:42px;border:0;border-radius:9px;background:transparent;color:var(--on-navy-2);font-size:14px;transition:all .2s}
.seg button[aria-checked=true]{background:#fff;color:var(--navy)}
.seg button[data-mode=arc][aria-checked=true]{background:var(--danger);color:#fff}
.hint{font-size:13px;color:var(--on-navy-2);margin:14px 0 0;min-height:40px}
.scope{grid-area:scope;background:#030b18;border:1px solid var(--navy-3);border-radius:var(--r);padding:14px;position:relative;min-width:0}
.scope-top{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--on-navy-2);margin-bottom:8px}
.scope-rate{margin-left:auto;font-family:var(--num)}
.dot-live{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 0 rgba(34,197,94,.6);animation:pulse 1.6s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 8px rgba(34,197,94,0)}100%{box-shadow:0 0 0 0 rgba(34,197,94,0)}}
#scope{width:100%;height:260px;display:block}
.scope-zoom{position:absolute;right:22px;top:44px;width:170px;background:rgba(6,20,42,.85);border:1px solid var(--navy-3);border-radius:10px;padding:6px 8px;font-size:11px;color:var(--on-navy-2)}
#zoom{width:100%;height:58px;display:block}
.pipe{grid-area:pipe;list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1.4fr 1fr 1.3fr;gap:12px;counter-reset:s}
.pipe li{position:relative;background:var(--navy-2);border:1px solid var(--navy-3);border-radius:var(--r-sm);padding:14px 16px;transition:border-color .25s,box-shadow .25s,background .25s}
.pipe li::before{counter-increment:s;content:counter(s);position:absolute;right:12px;top:10px;font:700 12px var(--num);color:var(--on-navy-2)}
.pipe li:not(:last-child)::after{content:"";position:absolute;right:-11px;top:50%;width:10px;height:2px;background:var(--navy-3)}
.pipe li.lit{border-color:var(--signal);box-shadow:0 0 0 1px var(--signal),0 0 24px rgba(56,214,245,.25)}
.pipe b{display:block;color:#fff;font-size:15px;margin-bottom:4px}
.pipe span{font-size:13px;color:var(--on-navy-2)}
.feat{display:grid;grid-template-columns:96px 1fr;align-items:center;gap:8px;font-size:11px;color:var(--on-navy-2);margin-top:4px}
.feat i{height:6px;background:#0a1a34;border-radius:3px;overflow:hidden}
.feat em{display:block;height:100%;width:0;background:var(--signal);border-radius:3px;transition:width .4s var(--ease),background .3s}
.feat em.hot{background:var(--danger)}
.verdict.ok{border-color:#1f7a45;background:#0b2a1f}
.verdict.benign{border-color:#a16207;background:#2a210b}
.verdict.bad{border-color:var(--danger);background:#3a0d12;box-shadow:0 0 30px rgba(239,68,68,.35)}
.verdict b{font-size:16px}
.breaker-row{grid-area:brk;display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.brk{display:flex;align-items:center;gap:14px}
.brk b{display:block;color:#fff}
.brk span{font-size:13px;color:var(--on-navy-2)}
.brk-body{width:44px;height:64px;border-radius:8px;background:#e9eef6;position:relative;box-shadow:inset 0 -6px 0 #c9d3e2}
.brk-lever{position:absolute;left:12px;width:20px;height:24px;border-radius:4px;background:var(--ok);top:8px;transition:top .25s var(--ease),background .25s}
.brk.off .brk-lever{top:32px;background:var(--danger)}
.brk.off b{color:#ff8a8a}

/* ---------- fault sim ---------- */
.sim{background:#fff;border-radius:20px;box-shadow:var(--shadow);padding:24px}
.sim-btns{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:20px}
.sim-btns button{min-height:44px;padding:0 16px;border-radius:10px;border:1px solid var(--line);background:#fff;font-size:14px;color:var(--ink);transition:all .2s}
.sim-btns button:hover{border-color:var(--brand-2);color:var(--brand-2)}
.sim-btns button.on{background:var(--danger);border-color:var(--danger);color:#fff}
.sim-btns .reset{margin-left:auto;color:var(--muted)}
.sim-stage{display:grid;grid-template-columns:1fr 300px;gap:24px;align-items:start}
.panel{border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.panel-head{display:flex;align-items:center;gap:10px;justify-content:space-between;background:var(--alt);padding:12px 16px;font-weight:600;font-size:15px}
.tag{font-size:12px;padding:2px 10px;border-radius:999px;background:#e6f6ec;color:var(--ok);white-space:nowrap}
.tag.bad{background:#fdecec;color:var(--danger)}
.meters{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line)}
.meter{background:#fff;padding:14px 16px;transition:background .3s}
.meter span{font-size:13px;color:var(--muted)}
.meter b{display:block;font:700 26px/1.3 var(--num);font-variant-numeric:tabular-nums}
.meter small{font-size:12px;color:var(--muted)}
.meter i{display:block;height:4px;background:var(--line);border-radius:2px;margin-top:6px;overflow:hidden}
.meter i em{display:block;height:100%;background:var(--ok);transition:width .5s var(--ease),background .3s}
.meter.bad{background:#fff5f5}
.meter.bad b{color:var(--danger)}
.meter.bad i em{background:var(--danger)}
.phone{border:10px solid #111827;border-radius:32px;background:#f1f5f9;height:380px;display:flex;flex-direction:column;overflow:hidden}
.phone-bar{display:flex;justify-content:space-between;background:var(--brand);color:#fff;font-size:13px;padding:10px 14px;font-weight:600}
.phone-feed{flex:1;overflow:auto;padding:10px;display:flex;flex-direction:column;gap:8px}
.feed-empty{color:var(--muted);font-size:13px;text-align:center;margin:auto}
.msg{background:#fff;border-radius:12px;padding:10px 12px;font-size:13px;box-shadow:0 2px 8px rgba(15,23,42,.08);border-left:4px solid var(--danger);animation:msgIn .35s var(--ease)}
.msg b{display:block;color:var(--danger);font-size:14px}
.msg small{color:var(--muted)}
@keyframes msgIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:none}}
.tags{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}
.tags>div{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px 20px}
.tags h4{margin:0 0 6px;color:var(--brand)}
.tags p{margin:0;font-size:14px;color:var(--ink-2)}

/* ---------- nilm ---------- */
.nilm{background:#fff;border-radius:20px;box-shadow:var(--shadow);padding:24px}
.tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin-bottom:20px}
.tabs button{border:0;background:none;min-height:46px;padding:0 16px;font-size:15px;color:var(--muted);border-bottom:3px solid transparent;margin-bottom:-1px;white-space:nowrap}
.tabs button[aria-selected=true]{color:var(--brand);border-bottom-color:var(--brand-2);font-weight:700}
.seg-light{background:var(--alt);border-color:var(--line);max-width:480px;margin-bottom:16px}
.seg-light button{color:var(--muted)}
.seg-light button[aria-checked=true]{background:#fff;color:var(--brand);box-shadow:0 1px 4px rgba(15,23,42,.1)}
#loadChart{width:100%;height:300px;display:block}
.load-legend{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--ink-2);margin-top:8px}
.load-legend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:6px;vertical-align:-1px}
.health{display:grid;grid-template-columns:1fr 280px;gap:24px;align-items:center}
.range-label{font-size:14px;color:var(--ink-2)}
input[type=range]{width:100%;accent-color:var(--brand-2);height:32px}
#healthWave{width:100%;height:220px;display:block;background:#f8fafc;border-radius:12px;border:1px solid var(--line)}
.health-side{text-align:center}
.gauge{position:relative;width:200px;margin:0 auto}
.gauge svg{width:100%}
.g-bg,.g-val{fill:none;stroke-width:12;stroke-linecap:round}
.g-bg{stroke:var(--line)}
.g-val{stroke:var(--ok);stroke-dasharray:157;stroke-dashoffset:0;transition:stroke-dashoffset .4s,stroke .3s}
.gauge b{position:absolute;left:0;right:0;top:44%;font:700 34px var(--num)}
.gauge span{display:block;font-size:13px;color:var(--muted);margin-top:-4px}
.hlist{list-style:none;padding:0;margin:14px 0;display:grid;gap:6px;font-size:14px;text-align:left}
.hlist li{display:flex;justify-content:space-between;border-bottom:1px dashed var(--line);padding:4px 0}
.hlist b{font-family:var(--num);font-variant-numeric:tabular-nums}
.hmsg{margin:0;padding:10px;border-radius:10px;background:#e6f6ec;color:var(--ok);font-weight:600;font-size:14px}
.hmsg.warn{background:#fff7e6;color:#b45309}
.hmsg.bad{background:#fdecec;color:var(--danger)}

/* ---------- products ---------- */
.prods{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.prod{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px;transition:transform .25s var(--ease),box-shadow .25s}
.prod:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.prod-img{height:150px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;background:linear-gradient(180deg,#f3f7fd,#fff);border-radius:10px}
.prod-img img{max-height:130px;max-width:90%;object-fit:contain}
.prod h3{font-size:15px;margin:0 0 4px}
.prod code{font:600 12px var(--num);color:var(--brand-2);background:#eaf2ff;padding:2px 8px;border-radius:6px}
.prod p{font-size:13px;color:var(--muted);margin:10px 0 0;line-height:1.6}
.prods-eco code{color:var(--eco);background:var(--eco-bg)}

/* ---------- AC loop ---------- */
.loop{display:grid;grid-template-columns:1fr 120px 1fr;align-items:center;gap:0;background:#fff;border-radius:20px;padding:28px;box-shadow:var(--shadow);margin-bottom:28px}
.loop-col{display:grid;gap:14px}
.loop-card{display:flex;align-items:center;gap:14px;border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 14px;transition:border-color .3s,box-shadow .3s}
.loop-card.lit{border-color:var(--eco-2);box-shadow:0 0 0 3px rgba(16,185,129,.15)}
.loop-card img{width:76px;height:56px;object-fit:contain;flex:none}
.loop-card b{display:block;font-size:15px}
.loop-card span{font-size:13px;color:var(--muted);line-height:1.5}
.loop-mid{text-align:center;color:var(--muted);font-size:12px}
.loop-svg{width:100%;height:240px}
.loop-svg path{fill:none;stroke:var(--eco-2);stroke-width:2.5;stroke-dasharray:5 9;animation:dash 1s linear infinite}
.loop-core{text-align:center;display:flex;flex-direction:column;align-items:center;gap:6px}
.core-ring{width:170px;height:170px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle,#fff 55%,var(--eco-bg) 56%);box-shadow:0 0 0 2px var(--eco-2),0 0 0 14px rgba(16,185,129,.08);animation:ring 2.4s ease-in-out infinite}
@keyframes ring{50%{box-shadow:0 0 0 2px var(--eco-2),0 0 0 22px rgba(16,185,129,.04)}}
.core-ring img{max-width:100px;max-height:100px}
.loop-core b{font-size:17px;margin-top:8px}
.loop-core>span{font-size:13px;color:var(--muted)}
.core-out{display:flex;flex-direction:column;gap:6px;margin-top:8px}
.pill{font-size:13px;padding:4px 12px;border-radius:999px;background:var(--eco-bg);color:var(--eco);font-weight:600}

.day{background:#fff;border-radius:20px;padding:24px;box-shadow:var(--shadow)}
.day-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}
.day-head h3{margin:0;font-size:19px}
#dayChart{width:100%;height:360px;display:block}
.day-cards{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:8px}
.dc{background:var(--bg);border-radius:10px;padding:10px 12px}
.dc span{font-size:12px;color:var(--muted)}
.dc b{display:block;font:700 20px var(--num);font-variant-numeric:tabular-nums}
.dc-eco{background:var(--eco-bg)}
.dc-eco b{color:var(--eco)}
.day .insight{border-left-color:var(--eco-2);background:var(--eco-bg)}

/* ---------- calc ---------- */
.calc{display:grid;grid-template-columns:1fr 1.1fr;gap:24px;background:#fff;border-radius:20px;padding:28px;box-shadow:var(--shadow)}
.calc-in{display:grid;gap:18px;align-content:start}
.fld label{font-weight:600;font-size:15px}
.fld small{font-size:12px;color:var(--muted)}
.fld-row{display:grid;grid-template-columns:1fr 110px;gap:12px;align-items:center}
.fld input[type=number]{height:44px;border:1px solid var(--line);border-radius:10px;padding:0 10px;font:600 16px var(--num);width:100%}
.fld input[type=range]{accent-color:var(--eco)}
.calc-out{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-content:start}
.kpi{background:var(--eco-bg);border-radius:12px;padding:14px 16px}
.kpi span{display:block;font-size:13px;color:var(--ink-2)}
.kpi b{font:700 clamp(22px,2.6vw,30px)/1.25 var(--num);color:var(--eco);font-variant-numeric:tabular-nums}
.kpi small{font-size:13px;color:var(--muted);margin-left:4px}
.kpi-wide{grid-column:1/-1;background:#f1f7ff}
.kpi-wide b{color:var(--brand)}
#calcChart{grid-column:1/-1;width:100%;height:180px}
.calc-out .note{grid-column:1/-1;margin:0}

/* ---------- scale ---------- */
.scale{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;margin-top:56px;background:#fff;border-radius:20px;padding:32px;box-shadow:var(--shadow)}
.scale h3{font-size:22px;line-height:1.5;margin:0 0 10px}
.big{font:800 46px/1.1 var(--num);color:var(--eco)}
.scale-l p:last-child{color:var(--ink-2);margin:0}
.bars{display:grid;gap:8px}
.bar{display:grid;grid-template-columns:44px 1fr 56px;gap:10px;align-items:center;font-size:14px}
.bar i{height:14px;background:var(--eco-bg);border-radius:7px;overflow:hidden}
.bar em{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--eco),var(--eco-2));border-radius:7px;transition:width 1.2s var(--ease)}
.bar b{font-family:var(--num);text-align:right;font-variant-numeric:tabular-nums}

/* ---------- scenes ---------- */
.scenes{background:#fff;border-radius:20px;box-shadow:var(--shadow);padding:8px 24px 24px}
.tabs-scroll{overflow-x:auto;scrollbar-width:none}
.tabs-scroll::-webkit-scrollbar{display:none}
.scene-body{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:center;animation:fade .35s var(--ease)}
@keyframes fade{from{opacity:0}to{opacity:1}}
.scene-img{border-radius:var(--r);overflow:hidden;aspect-ratio:16/9;background:var(--alt)}
.scene-img img{width:100%;height:100%;object-fit:cover}
.scene-body h3{font-size:22px;margin:0 0 8px}
.scene-body p{color:var(--ink-2);margin:0 0 12px}
.scene-body ul{margin:0;padding-left:20px;color:var(--ink-2)}
.scene-body li{margin:4px 0}
.badge{display:inline-block;font-size:12px;font-weight:700;padding:2px 10px;border-radius:999px;margin-right:6px;background:#eaf2ff;color:var(--brand-2)}
.badge.eco{background:var(--eco-bg);color:var(--eco)}
.scene-art{aspect-ratio:16/9;border-radius:var(--r);background:linear-gradient(160deg,#0b2a4a,#08343a);display:flex;align-items:center;justify-content:center;color:#bff3df}
.scene-art svg{width:42%;height:auto}

/* ---------- cases ---------- */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.case{background:#fff;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);display:flex;flex-direction:column}
.case img{aspect-ratio:16/10;object-fit:cover;width:100%}
.case>div{padding:16px 18px}
.case h3{font-size:17px;margin:0 0 6px}
.case p{font-size:14px;color:var(--ink-2);margin:0}
.case-text{background:linear-gradient(160deg,#0b4ea2,#1677ff);color:#fff;border:0;justify-content:flex-end;min-height:200px}
.case-text p{color:#dbe8ff}

/* ---------- cta/about ---------- */
.cta{background:linear-gradient(160deg,#071a36,#04101f);color:var(--on-navy)}
.about{display:grid;grid-template-columns:1.3fr 1fr;gap:48px;align-items:start}
.about p{color:var(--on-navy-2)}
.cta h2{color:#fff}
.creds{list-style:none;display:flex;gap:32px;padding:0;margin:24px 0 12px}
.creds b{display:block;font:700 36px var(--num);color:#fff}
.creds span{font-size:13px;color:var(--on-navy-2)}
.cert{font-size:13px}
.contact{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:20px;padding:28px}
.contact h3{margin:0 0 16px;color:#fff;font-size:20px}
.tel{display:flex;flex-direction:column;text-decoration:none;background:var(--brand-2);border-radius:14px;padding:14px 18px;margin-bottom:10px;transition:background .2s}
.tel:hover{background:#0f63d8}
.tel span{font-size:13px;color:#dbe8ff}
.tel b{font:700 28px var(--num);color:#fff;letter-spacing:.02em}
.tel-2{background:rgba(255,255,255,.08)}
.tel-2 b{font-size:22px}
.tel-2:hover{background:rgba(255,255,255,.14)}
.addr{font-size:14px;margin:12px 0 16px}
.qrs{display:flex;gap:16px}
.qrs figure{margin:0;text-align:center;font-size:12px;color:var(--on-navy-2)}
.qrs img{border-radius:8px;background:#fff;padding:4px;width:112px;height:112px}
.foot{background:#030b18;color:#6b7f9e;font-size:13px;padding:20px 0;text-align:center}
.foot a{color:#9fb3d1}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .prods{grid-template-columns:repeat(3,1fr)}
  .cases{grid-template-columns:1fr 1fr}
  .pipe{grid-template-columns:1fr 1fr}
  .pipe li::after{display:none}
}
@media (max-width:768px){
  .sec{padding:64px 0}
  .wrap{padding:0 16px}
  .hide-sm{display:none}
  .nav-links{display:none}
  .nav-in .btn{margin-left:auto}
  .hero{padding:96px 0 48px}
  .hero-stats{grid-template-columns:1fr 1fr}
  .cause{grid-template-columns:1fr;gap:12px}
  .cause-list{grid-template-columns:1fr 1fr}
  .cause-flow{display:none}
  .compare{grid-template-columns:1fr}
  .arch{padding:18px}
  .arch-nodes{grid-template-columns:1fr;gap:12px}
  .arch-node::before,.arch-node::after{display:none}
  .arch-node{flex-direction:row;text-align:left;gap:14px;padding:12px}
  .arch-node .arch-img{width:72px;height:72px;flex:none}
  .arch-node .arch-img img{max-height:72px}
  .arch-cloud svg{width:60px;height:60px}
  .arch-node b{display:block}
  .arch-node>b,.arch-node>small{flex:1}
  .arch-node{display:grid;grid-template-columns:72px 1fr;grid-template-rows:auto auto;column-gap:14px;row-gap:0}
  .arch-node .arch-img{grid-row:1/3}
  .arc{grid-template-columns:1fr;grid-template-areas:"ctrl" "scope" "pipe" "brk" "note"}
  #scope{height:200px}
  .scope-zoom{position:static;width:auto;margin-top:8px}
  .sim{padding:16px}
  .sim-stage{grid-template-columns:1fr}
  .phone{height:260px}
  .meters{grid-template-columns:1fr 1fr}
  .tags{grid-template-columns:1fr}
  .nilm,.day,.scenes{padding:16px}
  .health{grid-template-columns:1fr}
  .prods{grid-template-columns:1fr 1fr;gap:10px}
  .prod{padding:12px}
  .prod-img{height:110px}
  .prod-img img{max-height:96px}
  .loop{grid-template-columns:1fr;padding:18px;gap:16px}
  .loop-mid{display:none}
  .day-cards{grid-template-columns:repeat(3,1fr)}
  .day-cards .dc:nth-child(4),.day-cards .dc:nth-child(5){grid-column:span 1}
  #dayChart{height:300px}
  .calc{grid-template-columns:1fr;padding:18px}
  .scale{grid-template-columns:1fr;padding:20px}
  .scene-body{grid-template-columns:1fr}
  .cases{grid-template-columns:1fr}
  .about{grid-template-columns:1fr;gap:28px}
  .creds{gap:20px}
}
@media (max-width:420px){
  .fld-row{grid-template-columns:1fr 92px}
  .day-cards{grid-template-columns:1fr 1fr}
  .calc-out{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .js .reveal{opacity:1;transform:none}
}

@supports not (aspect-ratio:1/1){
  .scene-img,.scene-art{height:56vw;max-height:420px}
  .case img{height:220px}
}