:root{--bg:#aeb3b3;--panel:#c9cdcc;--panel2:#e0e3e1;--ink:#111716;--muted:#4f5956;--line:#68716e;--dark:#080a0e;--green:#20c56b;--red:#e9504f;--ice:#9de8ff;--max:1220px;--sans:"Microsoft YaHei","PingFang SC",Arial,sans-serif;--mono:Consolas,"Courier New",monospace}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.75;background-image:linear-gradient(rgba(255,255,255,.11) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,.05) 1px,transparent 1px);background-size:28px 28px}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.wrap{width:min(var(--max),calc(100% - 48px));margin:auto}.topbar{height:64px;position:sticky;top:0;z-index:60;background:rgba(174,179,179,.89);backdrop-filter:blur(16px);border-bottom:1px solid #545d5a;box-shadow:0 3px 0 rgba(0,0,0,.08)}.nav{height:100%;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:10px;font-weight:900}.brand img{width:32px;height:32px;object-fit:contain}.official{background:var(--ice);padding:2px 8px;font:800 10px/1.8 var(--mono)}.navlinks{display:flex;align-items:center;gap:26px;font-size:13px;font-weight:800}.btn,.workbtn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border:1px solid #161b1a;background:transparent;font-weight:900}.workbtn,.btn.primary{background:#fff;color:#111}.hero{padding:82px 0 68px}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}.status{display:inline-flex;gap:9px;align-items:center;padding:4px 11px;background:var(--panel2);border:1px solid var(--line);font:800 12px var(--mono)}.lamp{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green)}h1,h2,h3,p{margin-top:0}.hero h1{font-size:46px;line-height:1.1;font-weight:900;letter-spacing:-.055em;margin:22px 0}.ice{color:#347f94}.lead{max-width:660px;color:#37403e}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.console{background:#151a1c;color:#e7eeee;border:2px solid #69716e;box-shadow:inset 0 0 0 4px #262c2e,10px 10px 0 rgba(0,0,0,.13)}.console-head,.console-foot{padding:12px 16px;display:flex;justify-content:space-between;align-items:center;font:11px var(--mono);border-bottom:1px solid #4b5557}.console img{width:100%;aspect-ratio:16/10;object-fit:cover;filter:saturate(.65) contrast(1.08)}.console-foot{border:0;border-top:1px solid #4b5557;color:var(--green)}.dots{color:var(--red);letter-spacing:4px}.anchorbar{position:sticky;top:64px;z-index:50;background:rgba(201,205,204,.94);backdrop-filter:blur(16px);border-block:1px solid var(--line)}.anchor-inner{min-height:72px;display:grid;grid-template-columns:1fr 2fr;gap:20px;align-items:center}.anchor-title{border-left:5px solid var(--red);padding-left:14px;font-weight:900}.anchor-links{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.anchor-links a{border:1px solid var(--line);background:#d9dcda;padding:8px;text-align:center;border-radius:99px;font-size:12px;font-weight:900}.section{padding:88px 0;border-bottom:1px solid #747c79;scroll-margin-top:150px}.tag{display:inline-block;margin-bottom:10px;font:800 11px var(--mono);letter-spacing:.15em}.tag:before{content:"";display:inline-block;width:8px;height:8px;background:var(--green);margin-right:8px}.title{font-size:36px;line-height:1.2;letter-spacing:-.04em;margin-bottom:12px}.intro{max-width:690px;color:var(--muted);margin-bottom:36px}.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.module{background:var(--panel);border:1px solid var(--line);padding:22px;min-height:250px;box-shadow:inset 0 0 0 3px rgba(255,255,255,.16);transition:.2s}.module:hover{transform:translateY(-2px);border-color:var(--ice)}.module-no{font:800 11px var(--mono)}.fuse-window{height:54px;margin:26px 0;border:1px solid #5b6461;background:#1b2221;padding:10px;display:flex;align-items:center;gap:8px}.fuse-window i{height:7px;flex:1;background:var(--green);box-shadow:0 0 8px rgba(32,197,107,.7)}.module h3{font-size:21px;margin-bottom:8px}.module p{font-size:13px;color:var(--muted)}.dark{background:var(--dark);color:#edf1ef}.dark .intro,.dark p{color:#a5aeab}.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.scene{border:1px solid #434b4a;background:#101514;padding:24px;min-height:220px}.icon{width:42px;height:42px;border:1px solid #78817e;display:grid;place-items:center;color:var(--green);font:18px var(--mono)}.scene h3{margin:28px 0 8px}.threshold{font:10px var(--mono);color:var(--red)}.rack{display:grid;gap:10px}.rack-row{display:grid;grid-template-columns:260px 1fr 240px;background:var(--panel);border:1px solid var(--line)}.rack-row.featured{border-left:4px solid var(--ice)}.rack-row>div{padding:22px;border-right:1px solid var(--line)}.rack-row>div:last-child{border:0}.rack-model{font-size:21px;font-weight:900}.rack-spec{color:var(--muted);font-size:14px}.rack-action{display:flex;align-items:center;justify-content:space-between;gap:10px;font-weight:900}.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}.media{padding:10px;background:var(--panel);border:1px solid var(--line);box-shadow:inset 0 0 0 3px rgba(255,255,255,.18)}.media img{width:100%;aspect-ratio:4/3;object-fit:cover}.list{list-style:none;padding:0;margin:0}.list li{display:grid;grid-template-columns:60px 1fr;gap:15px;padding:18px 0;border-top:1px solid var(--line)}.no{font:900 24px var(--mono)}.channels li{grid-template-columns:140px 1fr}.metrics{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);background:var(--panel)}.metric{padding:28px 10px;text-align:center;border-right:1px solid var(--line)}.metric:last-child{border:0}.metric strong{display:block;font:900 40px var(--mono)}.metric span{font-size:11px;color:var(--muted)}.cta{margin-top:30px;background:#151a1c;color:white;padding:24px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-left:8px solid var(--green)}.code{background:#0e1312;color:#dce7e3;border:1px solid #48504e;padding:24px;font:13px/1.8 var(--mono);white-space:pre-wrap;overflow:auto}.faq{max-width:740px;margin:auto}.faq details{border-top:1px solid var(--line);background:rgba(215,219,217,.3)}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{list-style:none;cursor:pointer;padding:20px 48px 20px 16px;font-weight:900;position:relative}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";position:absolute;right:17px;top:12px;font-size:28px;transition:.2s}.faq details[open] summary:after{transform:rotate(45deg);color:var(--red)}.faq details p{padding:0 48px 20px 16px;color:var(--muted)}.news-list{border-top:1px solid var(--ink)}.news{display:grid;grid-template-columns:140px 1fr 100px;gap:18px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}.news time,.news a{font:12px var(--mono)}.news h3,.news p{margin-bottom:4px}.news p{font-size:13px;color:var(--muted)}.more{display:none}.news-open .more{display:grid}.toggle{border:0;background:none;text-decoration:underline;padding:18px 0;font-weight:900;cursor:pointer}.footer{background:#06070a;color:#a4adaa;padding:68px 0 26px;border-top:5px solid var(--red)}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:44px}.footer h3,.footer h4{color:white}.footer a{display:block;margin:8px 0;font-size:13px}.emergency{color:#ff7774;font:800 12px var(--mono)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:44px;padding-top:20px;border-top:1px solid #333b39;font-size:11px}
/* 网页入口：断路器操作台 */
.webpage .hero{min-height:calc(100vh - 64px);display:grid;align-items:center}.desk{display:grid;grid-template-columns:320px 1fr;gap:18px}.switchboard{background:#272e2c;color:white;border:2px solid #5f6865;padding:22px}.switch{display:flex;justify-content:space-between;padding:15px 0;border-bottom:1px solid #4c5653}.switch b{color:var(--green)}.chat{background:var(--panel2);border:1px solid var(--line);padding:30px}.bubble{padding:14px 16px;border-left:4px solid var(--green);background:#f4f5f3;margin:14px 0}.inputline{display:flex;margin-top:18px;border-top:1px solid var(--line);padding-top:16px}.inputline input{flex:1;background:transparent;border:0;outline:0;font:15px var(--sans)}.inputline button{background:#141918;color:white;border:0;padding:12px 18px}
/* 帮助中心：回路图纸 */
.help-hero{padding:66px 0;border-bottom:2px solid var(--line)}.help-hero h1{font-size:58px;line-height:1.05;margin:12px 0}.docs{display:grid;grid-template-columns:250px 1fr;gap:56px;padding:65px 0}.docnav{position:sticky;top:90px;align-self:start;border:1px solid var(--line);background:var(--panel)}.docnav a{display:block;padding:13px 15px;border-bottom:1px solid var(--line);font-size:13px}.doc article{max-width:800px;margin-bottom:76px;scroll-margin-top:90px}.doc h2{font-size:30px;border-bottom:1px solid var(--line);padding-bottom:12px}.doc h3{margin-top:30px}.callout{padding:18px;border:1px solid var(--line);border-left:7px solid var(--red);background:var(--panel2);margin:20px 0}.table{width:100%;border-collapse:collapse;font-size:13px}.table th,.table td{border:1px solid var(--line);padding:13px;text-align:left}.table th{background:#b7bcba}
@media(max-width:980px){.hero-grid,.split{grid-template-columns:1fr}.spec-grid{grid-template-columns:repeat(2,1fr)}.scene-grid{grid-template-columns:repeat(2,1fr)}.rack-row{grid-template-columns:200px 1fr}.rack-action{grid-column:1/-1;border-top:1px solid var(--line)}.anchorbar{position:relative;top:auto}.anchor-inner{grid-template-columns:1fr;padding:12px 0}.docs{grid-template-columns:1fr}.docnav{position:static;display:grid;grid-template-columns:repeat(2,1fr)}.desk{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}}@media(max-width:680px){.wrap{width:calc(100% - 28px)}.navlinks>a:not(.workbtn){display:none}.hero h1,.help-hero h1{font-size:35px}.anchor-links,.spec-grid,.scene-grid,.metrics{grid-template-columns:1fr 1fr}.section{padding:64px 0}.rack-row{grid-template-columns:1fr}.rack-row>div{border-right:0;border-bottom:1px solid var(--line)}.split.reverse .copy{order:2}.news{grid-template-columns:1fr;gap:3px}.cta,.footer-bottom{align-items:flex-start;flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr}.docnav{grid-template-columns:1fr}}@media print{.topbar,.anchorbar,.actions,.footer,.toggle,script{display:none!important}body{background:white}.hero,.section,.help-hero,.docs{padding:24px 0}.hero-grid,.split,.docs{display:block}.spec-grid,.scene-grid,.metrics{grid-template-columns:1fr}.console,.media{box-shadow:none}}
/* scroll performance: no live blur, no fixed texture layer */
.topbar,.anchorbar{-webkit-backdrop-filter:none!important;backdrop-filter:none!important}
body::before{content:none!important;display:none!important}
img{filter:none!important}
.section{content-visibility:auto;contain-intrinsic-size:auto 640px}
@media (hover:none){html{scroll-behavior:auto}body{background-image:none!important}}
@media print{.section{content-visibility:visible}}