:root{--brand:#0e7490;--brand-bright:#0891b2;--brand-deep:#0b4f5f;--brand-soft:#e2f1f5;--brand-ink:#062a33;--accent:#f59e0b;--accent-deep:#b45309;--accent-soft:#fdf2da;--ink:#102a33;--ink-2:#08202a;--text:#1b3239;--muted:#5b6f77;--bg:#faf8f3;--surface:#fff;--surface-2:#f1f5f4;--line:#e0e7e3;--grad:linear-gradient(120deg,#0b4f5f,#0891b2);--grad-soft:linear-gradient(120deg,#e2f1f5,#fdf2da);--radius:16px;--radius-sm:10px;--shadow:0 6px 18px rgba(16,42,51,.07);--shadow-lg:0 20px 48px rgba(16,42,51,.16);--header-h:68px}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:86px}
body{margin:0;background:var(--bg);color:var(--text);font-family:"Helvetica Neue",Helvetica,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-bright)}
h1,h2,h3,h4{color:var(--ink);line-height:1.3;margin:0 0 .5em;font-weight:700}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
code{background:var(--surface-2);padding:2px 6px;border-radius:6px;font-size:.92em}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 16px;z-index:999}
.skip:focus{left:8px;top:8px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 26px;border-radius:999px;border:1px solid transparent;font-size:16px;font-weight:600;line-height:1.2;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(14,116,144,.26)}
.btn:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(14,116,144,.32)}
.btn-sm{min-height:40px;padding:9px 20px;font-size:14px}
.btn-lg{min-height:54px;padding:15px 34px;font-size:17px}
.btn-ghost{background:transparent;color:var(--ink);border-color:rgba(16,42,51,.28);box-shadow:none}
.btn-ghost:hover{color:var(--brand-deep);border-color:var(--brand);background:rgba(8,145,178,.07);box-shadow:none}
.btn-light{background:#fff;color:var(--brand-deep);box-shadow:var(--shadow)}
.btn-light:hover{color:var(--brand-ink);box-shadow:var(--shadow-lg)}
.btn-line-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);box-shadow:none}
.btn-line-light:hover{background:rgba(255,255,255,.12);color:#fff}
.btn-accent{background:linear-gradient(120deg,#f59e0b,#fbbf24);color:#3a1f00;box-shadow:0 10px 24px rgba(180,83,9,.28)}
.btn-accent:hover{color:#3a1f00}
.header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(8,32,42,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08);transition:background .25s ease,box-shadow .25s ease}
.header.scrolled{background:rgba(6,24,32,.98);box-shadow:0 8px 26px rgba(0,0,0,.28)}
.header-inner{display:flex;align-items:center;gap:18px;height:var(--header-h)}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:19px;letter-spacing:.5px;flex:0 0 auto}
.logo img{width:30px;height:30px;border-radius:7px;background:rgba(255,255,255,.1);padding:3px}
.logo:hover{color:#fff}
.nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.nav-item{position:relative}
.nav-btn{display:flex;align-items:center;gap:6px;padding:10px 12px;color:rgba(255,255,255,.86);font-size:15px;background:none;border:0;cursor:pointer;font-family:inherit;line-height:1.2;border-radius:8px}
.nav-item:hover>.nav-btn,.nav-btn:hover{color:#fff;background:rgba(255,255,255,.08)}
.caret{display:inline-block;font-size:10px;transition:transform .25s ease}
.nav-item:hover .caret{transform:rotate(180deg)}
.dd-input{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.dropdown{position:absolute;top:calc(100% + 10px);left:0;min-width:216px;background:#fff;border-radius:12px;box-shadow:var(--shadow-lg);padding:10px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .2s ease,transform .2s ease,visibility .2s ease;border:1px solid var(--line)}
.nav-item:hover .dropdown,.dd-input:checked~.dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.nav-item:hover .caret,.dd-input:checked~.nav-btn .caret{transform:rotate(180deg)}
.dropdown a{display:block;padding:9px 12px;border-radius:8px;color:var(--text);font-size:14px}
.dropdown a:hover{background:var(--brand-soft);color:var(--brand-deep)}
.nav-cta{flex:0 0 auto}
.burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;cursor:pointer;border-radius:10px;background:rgba(255,255,255,.08);margin-left:auto}
.burger span{display:block;width:20px;height:2px;background:#fff;margin:0 auto;transition:transform .25s ease,opacity .25s ease}
.nav-toggle{display:none}
.hero{position:relative;padding:calc(var(--header-h) + 62px) 0 74px;background:radial-gradient(1000px 520px at 82% 12%,rgba(8,145,178,.34),transparent 62%),radial-gradient(760px 460px at 4% 88%,rgba(245,158,11,.18),transparent 60%),linear-gradient(160deg,#08202a,#0b3a47 58%,#0a2733);color:#e9f2f3;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px);background-size:64px 64px;opacity:.5;pointer-events:none}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;gap:48px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(8,145,178,.16);border:1px solid rgba(94,213,232,.38);color:#8fe3ef;font-size:13px;letter-spacing:.4px;margin-bottom:20px}
.hero h1{font-size:clamp(30px,3.5vw,48px);color:#fff;letter-spacing:-.5px;margin-bottom:16px}
.hero h1 em{font-style:normal;background:linear-gradient(100deg,#5ed5e8,#fbbf24);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:17px;color:rgba(233,242,243,.85);max-width:520px;margin-bottom:26px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-stats{display:flex;gap:36px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.14);padding-top:22px;list-style:none;margin:0;padding-left:0}
.hero-stats b{display:block;font-size:26px;color:#fff;line-height:1.2}
.hero-stats span{font-size:13px;color:rgba(233,242,243,.68)}
.demo{background:rgba(6,26,34,.78);border:1px solid rgba(94,213,232,.26);border-radius:20px;padding:18px;box-shadow:0 30px 70px rgba(0,0,0,.45);backdrop-filter:blur(8px)}
.demo-top{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:rgba(233,242,243,.62);margin-bottom:14px}
.demo-top b{color:#8fe3ef;font-weight:600;letter-spacing:.6px}
.demo-gauge{position:relative;width:100%;max-width:300px;margin:0 auto 6px;aspect-ratio:1/1}
.gauge-ring{position:absolute;inset:0;border-radius:50%;background:conic-gradient(from 210deg,#0891b2,#5ed5e8 40%,#fbbf24 62%,#0891b2 82%,rgba(94,213,232,.14) 82%);mask:radial-gradient(circle,transparent 62%,#000 63%,#000 76%,transparent 77%);-webkit-mask:radial-gradient(circle,transparent 62%,#000 63%,#000 76%,transparent 77%);transition:filter .4s ease}
.gauge-dial{position:absolute;inset:16%;border-radius:50%;border:1px dashed rgba(94,213,232,.26);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:2px}
.gauge-dial .kv{font-size:34px;font-weight:700;color:#fff;line-height:1.1;letter-spacing:-.5px}
.gauge-dial .ku{font-size:12px;color:rgba(233,242,243,.6);letter-spacing:1px}
.gauge-dial .state{margin-top:8px;font-size:12px;padding:3px 12px;border-radius:999px;background:rgba(245,158,11,.16);color:#fbbf24;border:1px solid rgba(245,158,11,.4)}
.needle{position:absolute;left:50%;top:50%;width:2px;height:34%;background:linear-gradient(#fbbf24,rgba(251,191,36,.2));transform-origin:bottom center;transform:translate(-50%,-100%) rotate(-52deg);transition:transform .9s cubic-bezier(.2,.9,.2,1);border-radius:2px}
.needle::after{content:"";position:absolute;left:50%;bottom:-5px;width:10px;height:10px;border-radius:50%;background:#fbbf24;transform:translateX(-50%)}
.conn{display:flex;justify-content:center;margin-top:2px;padding-bottom:6px}
.conn label{display:inline-flex;align-items:center;gap:8px;min-height:46px;padding:10px 28px;border-radius:999px;background:linear-gradient(120deg,#0e7490,#0891b2);color:#fff;font-weight:700;cursor:pointer;box-shadow:0 12px 26px rgba(8,145,178,.4);font-size:15px;border:1px solid rgba(255,255,255,.18)}
.conn label::before{content:"▶";font-size:11px}
.state-on{display:none}
#connOn:checked~.conn label{background:linear-gradient(120deg,#b45309,#f59e0b);color:#2b1600}
#connOn:checked~.conn label::before{content:"■"}
#connOn:checked~.demo-gauge .needle{transform:translate(-50%,-100%) rotate(48deg)}
#connOn:checked~.demo-gauge .gauge-ring{filter:saturate(1.35) drop-shadow(0 0 12px rgba(94,213,232,.4))}
#connOn:checked~.demo-gauge .state{background:rgba(74,222,128,.16);color:#7ee2a8;border-color:rgba(74,222,128,.4)}
#connOn:checked~.demo-gauge .state-off{display:none}
#connOn:checked~.demo-gauge .state-on{display:inline}
#connOn:checked~.demo-foot .link-state{color:#7ee2a8}
.demo-nodes{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:8px}
.demo-nodes li{display:block}
.demo-nodes input{position:absolute;opacity:0;pointer-events:none}
.demo-nodes label{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.12);color:rgba(233,242,243,.78);font-size:13px;cursor:pointer;min-height:44px}
.demo-nodes label b{font-weight:600;color:#e9f2f3}
.demo-nodes label em{font-style:normal;color:#8fe3ef;font-size:12px}
.demo-nodes input:checked+label{border-color:#5ed5e8;background:rgba(8,145,178,.22);box-shadow:inset 0 0 0 1px rgba(94,213,232,.5)}
.demo-foot{display:flex;justify-content:space-between;gap:10px;font-size:12px;color:rgba(233,242,243,.55);margin-top:12px}
.demo-foot b{color:#e9f2f3;font-weight:600}
.marquee{border-top:1px solid rgba(255,255,255,.1);background:rgba(4,18,24,.55)}
.marquee ul{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 30px;list-style:none;margin:0;padding:14px 0;font-size:13px;color:rgba(233,242,243,.62)}
.marquee li::before{content:"◆";color:#f59e0b;font-size:9px;margin-right:8px;vertical-align:middle}
.section{padding:82px 0}
.section--tight{padding:60px 0}
.section--alt{background:var(--surface-2)}
.section--ink{background:linear-gradient(155deg,#0a2733,#0d3d4c);color:rgba(233,242,243,.86)}
.section-head{max-width:760px;margin:0 auto 44px;text-align:center}
.section-head .eyebrow{display:inline-block;font-size:13px;letter-spacing:2px;color:var(--brand);font-weight:700;margin-bottom:10px;text-transform:uppercase}
.section-head h2{font-size:clamp(24px,2.6vw,34px);margin-bottom:12px}
.section-head p{color:var(--muted);margin:0}
.section--ink .section-head h2{color:#fff}
.section--ink .section-head p{color:rgba(233,242,243,.7)}
.section--ink .section-head .eyebrow{color:#8fe3ef}
.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:rgba(8,145,178,.34)}
.card .ico{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:12px;background:var(--brand-soft);font-size:22px;margin-bottom:14px}
.card h3{font-size:18px;margin-bottom:8px}
.card p{color:var(--muted);font-size:14.5px;margin:0}
.card ul{color:var(--muted);font-size:14px;margin:10px 0 0;padding-left:18px}
.section--ink .card{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12);box-shadow:none}
.section--ink .card h3{color:#fff}
.section--ink .card p,.section--ink .card ul{color:rgba(233,242,243,.72)}
.section--ink .card .ico{background:rgba(94,213,232,.14)}
.section--ink .card:hover{border-color:rgba(94,213,232,.5);background:rgba(255,255,255,.08)}
.section--ink .node-note{font-size:13px;color:rgba(233,242,243,.6);margin:14px 0 0}
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);margin-top:-46px;position:relative;z-index:5}
.stat-strip div{text-align:center;border-right:1px solid var(--line)}
.stat-strip div:last-child{border-right:0}
.stat-strip b{display:block;font-size:28px;color:var(--brand-deep);line-height:1.2}
.stat-strip span{font-size:13px;color:var(--muted)}
.node-panel{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:start}
.node-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.node-list li{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 18px;border-radius:12px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);font-size:14px}
.node-list li b{color:#fff;font-weight:600}
.node-list .ping{font-variant-numeric:tabular-nums;color:#8fe3ef}
.node-list .bar{flex:1;height:6px;border-radius:3px;background:rgba(255,255,255,.12);overflow:hidden;max-width:220px}
.node-list .bar i{display:block;height:100%;border-radius:3px;background:linear-gradient(90deg,#0891b2,#5ed5e8)}
.speed-card{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:24px}
.speed-card h3{color:#fff;font-size:17px}
.speed-row{display:flex;justify-content:space-between;font-size:14px;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.14);color:rgba(233,242,243,.72)}
.speed-row:last-child{border:0}
.speed-row b{color:#fbbf24;font-weight:700;font-variant-numeric:tabular-nums}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px 24px;box-shadow:var(--shadow)}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;top:-16px;left:24px;font-size:14px;font-weight:700;color:#fff;background:var(--grad);padding:6px 12px;border-radius:999px;letter-spacing:1px}
.step h3{font-size:17px;margin:6px 0 8px}
.step p{font-size:14px;color:var(--muted);margin:0}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.plan{position:relative;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease}
.plan:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.plan--hot{border-color:var(--brand);box-shadow:0 24px 52px rgba(8,145,178,.22);background:linear-gradient(180deg,#f2fbfd,#fff)}
.plan-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:linear-gradient(120deg,#f59e0b,#fbbf24);color:#3a1f00;font-size:12px;font-weight:700;padding:5px 16px;border-radius:999px;white-space:nowrap}
.plan h3{font-size:17px;color:var(--muted);font-weight:600;margin-bottom:6px}
.plan .price{font-size:34px;font-weight:700;color:var(--brand-deep);line-height:1.2;margin-bottom:4px}
.plan .price small{font-size:14px;color:var(--muted);font-weight:400}
.plan .meta{font-size:13px;color:var(--muted);margin-bottom:18px}
.plan ul{list-style:none;padding:0;margin:0 0 24px;display:grid;gap:9px;font-size:14px;color:var(--text)}
.plan li::before{content:"✓";color:var(--brand);font-weight:700;margin-right:8px}
.plan .btn{margin-top:auto;width:100%}
.faq-list{max-width:880px;margin:0 auto;display:grid;gap:12px}
.faq{border:1px solid var(--line);border-radius:12px;background:var(--surface);box-shadow:var(--shadow);overflow:hidden}
.faq[open]{border-color:rgba(8,145,178,.4)}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 22px;font-weight:600;color:var(--ink);cursor:pointer;min-height:56px;list-style:none;font-size:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--brand);flex:0 0 auto;line-height:1}
.faq[open] summary::after{content:"−"}
.faq summary:hover{color:var(--brand-deep)}
.faq .faq-body{padding:0 22px 20px;color:var(--muted);font-size:14.5px}
.faq .faq-body ol{padding-left:20px;margin:10px 0 0}
.faq .faq-body li{margin-bottom:6px}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.quote{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:14px}
.quote .stars{color:#f59e0b;letter-spacing:2px;font-size:14px}
.quote p{font-size:14.5px;color:var(--text);margin:0}
.quote .who{display:flex;align-items:center;gap:12px;margin-top:auto}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;flex:0 0 auto}
.who b{display:block;font-size:14px;color:var(--ink)}
.who span{font-size:12px;color:var(--muted)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.news-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2)}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-card:hover .thumb img{transform:scale(1.05)}
.news-card .tag{position:absolute;left:12px;top:12px;background:rgba(6,26,34,.82);color:#8fe3ef;font-size:12px;padding:4px 12px;border-radius:999px;letter-spacing:.5px}
.news-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:8px;flex:1}
.news-card .date{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.news-card h3{font-size:17px;line-height:1.45;margin:0}
.news-card h3 a{color:var(--ink)}
.news-card h3 a:hover{color:var(--brand)}
.news-card p{font-size:14px;color:var(--muted);margin:0}
.news-card .more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand)}
.cta{position:relative;overflow:hidden;background:radial-gradient(720px 340px at 50% 0,rgba(8,145,178,.32),transparent 65%),linear-gradient(150deg,#08202a,#0b3d4b);color:#fff;border-radius:24px;padding:56px 40px;text-align:center;box-shadow:var(--shadow-lg)}
.cta h2{color:#fff;font-size:clamp(24px,2.6vw,32px)}
.cta p{color:rgba(233,242,243,.8);max-width:640px;margin:0 auto 26px}
.cta .hero-btns{justify-content:center;margin-bottom:0}
.footer{background:#061a22;color:rgba(233,242,243,.66);padding:60px 0 28px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer h4{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:.4px}
.footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.footer a{color:rgba(233,242,243,.66)}
.footer a:hover{color:#8fe3ef}
.footer .logo{margin-bottom:14px;font-size:18px}
.footer p{margin:0;font-size:13.5px;line-height:1.8}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;padding-top:22px;font-size:13px}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:16px}
.to-top{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;background:var(--brand-deep);color:#fff;display:none;align-items:center;justify-content:center;box-shadow:var(--shadow-lg);z-index:90;border:0;cursor:pointer;font-size:18px}
html.js .to-top.show{display:flex}
.to-top:hover{background:var(--brand);color:#fff}
.page-hero{padding:calc(var(--header-h) + 54px) 0 54px;background:radial-gradient(720px 320px at 78% 0,rgba(8,145,178,.28),transparent 62%),linear-gradient(150deg,#08202a,#0b3a47);color:rgba(233,242,243,.86)}
.page-hero h1{color:#fff;font-size:clamp(26px,3vw,38px);margin-bottom:12px}
.page-hero p{color:rgba(233,242,243,.78);max-width:720px;margin:0}
.crumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:rgba(233,242,243,.62);margin-bottom:16px;list-style:none;padding:0}
.crumb a{color:rgba(233,242,243,.8)}
.crumb li+li::before{content:"/";margin-right:8px;color:rgba(255,255,255,.34)}
.crumb .now{color:#8fe3ef}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:38px;align-items:start}
.article{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:34px 38px;box-shadow:var(--shadow)}
.article h1{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px}
.article-meta{display:flex;flex-wrap:wrap;gap:16px;font-size:13px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:24px}
.article-meta b{color:var(--brand-deep);font-weight:600}
.article figure{margin:0 0 24px}
.article figure img{width:100%;border-radius:12px}
.article figcaption{font-size:12.5px;color:var(--muted);margin-top:8px;text-align:center}
.article .lead{font-size:16.5px;color:var(--ink);background:var(--brand-soft);border-left:4px solid var(--brand);padding:16px 18px;border-radius:0 12px 12px 0}
.article h2{font-size:22px;margin:34px 0 12px}
.article p{color:var(--text);font-size:15.5px}
.article blockquote{margin:22px 0;padding:16px 20px;background:var(--surface-2);border-radius:12px;border-left:4px solid var(--accent);color:var(--ink)}
.article blockquote p{margin:0;font-size:15px}
.article blockquote cite{display:block;margin-top:8px;font-size:13px;color:var(--muted);font-style:normal}
.data-table{width:100%;border-collapse:collapse;font-size:14px;margin:16px 0 22px}
.data-table th,.data-table td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.data-table th{background:var(--surface-2);color:var(--ink);font-weight:600}
.data-table td{color:var(--text)}
.tags{display:flex;flex-wrap:wrap;gap:10px;margin:30px 0 0;padding:0;list-style:none}
.tags a{display:inline-block;padding:6px 14px;border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--muted)}
.tags a:hover{border-color:var(--brand);color:#fff;background:var(--brand)}
.comments{margin-top:36px;border-top:1px solid var(--line);padding-top:26px}
.comments h2{font-size:19px;margin-bottom:18px}
.comment{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line)}
.comment:last-child{border-bottom:0}
.comment .avatar{width:38px;height:38px;font-size:15px}
.comment b{font-size:14px;color:var(--ink)}
.comment time{font-size:12px;color:var(--muted);margin-left:8px}
.comment p{font-size:14px;color:var(--muted);margin:6px 0 0}
.prevnext{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:32px}
.prevnext a{display:block;padding:16px 18px;border:1px solid var(--line);border-radius:12px;background:var(--surface);font-size:14px;box-shadow:var(--shadow)}
.prevnext a span{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
.prevnext a:hover{border-color:var(--brand)}
.back-list{display:inline-flex;margin-top:22px;font-size:14px;font-weight:600}
.sidebar{display:grid;gap:20px;position:sticky;top:calc(var(--header-h) + 18px)}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow)}
.side-card h3{font-size:16px;margin-bottom:14px;padding-left:12px;border-left:3px solid var(--brand);line-height:1.2}
.toc{list-style:none;margin:0;padding:0 0 0 14px;border-left:1px solid var(--line);display:grid;gap:10px;position:relative}
.toc li{position:relative;font-size:13.5px}
.toc li::before{content:"";position:absolute;left:-19px;top:8px;width:9px;height:9px;border-radius:50%;background:#fff;border:2px solid var(--line)}
.toc li.active::before{border-color:var(--brand);background:var(--brand)}
.toc a{color:var(--muted);display:block}
.toc li.active a{color:var(--brand-deep);font-weight:700}
.hot-list{list-style:none;margin:0;padding:0;display:grid;gap:12px;counter-reset:hot}
.hot-list li{counter-increment:hot;display:flex;gap:10px;align-items:flex-start;font-size:13.5px}
.hot-list li::before{content:counter(hot);flex:0 0 20px;width:20px;height:20px;border-radius:6px;background:var(--surface-2);color:var(--muted);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:2px;transition:transform .2s ease}
.hot-list li:nth-child(1)::before{background:linear-gradient(120deg,#0e7490,#0891b2);color:#fff}
.hot-list li:nth-child(2)::before{background:linear-gradient(120deg,#f59e0b,#fbbf24);color:#3a1f00}
.hot-list li:nth-child(3)::before{background:linear-gradient(120deg,#d4a52a,#f7e08a);color:#3a1f00}
.hot-list li:hover::before{transform:scale(1.12)}
.hot-list a{color:var(--text)}
.hot-list li:hover a{color:var(--brand)}
.cat-tags{display:flex;flex-wrap:wrap;gap:9px}
.cat-tags a{display:inline-block;padding:6px 12px;border-radius:999px;border:1px solid var(--line);font-size:12.5px;color:var(--muted)}
.cat-tags a:hover{border-color:var(--brand);color:var(--brand-deep);background:var(--brand-soft)}
.news-list-hero{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:18px}
.ver-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.ver{display:flex;flex-direction:column;gap:8px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease}
.ver:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.ver .ico{font-size:24px}
.ver h3{font-size:17px;margin:0}
.ver .vmeta{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.ver ul{list-style:none;padding:0;margin:6px 0 12px;font-size:13.5px;color:var(--muted);display:grid;gap:6px}
.ver li::before{content:"·";color:var(--brand);font-weight:700;margin-right:8px}
.ver .btn{margin-top:auto;width:100%}
.req-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.req{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px}
.req b{display:block;font-size:13px;color:var(--muted);font-weight:600;margin-bottom:6px}
.req span{font-size:15px;color:var(--ink)}
.install-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:ins}
.install{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow)}
.install::before{counter-increment:ins;content:"0" counter(ins);display:inline-block;font-size:13px;font-weight:700;color:#fff;background:var(--grad);padding:3px 10px;border-radius:999px;margin-bottom:12px}
.install h3{font-size:16px;margin-bottom:6px}
.install p{font-size:13.5px;color:var(--muted);margin:0}
.map-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.map-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.map-card h2{font-size:17px;margin-bottom:12px}
.map-card ul{list-style:none;padding:0;margin:0;display:grid;gap:8px;font-size:14px}
.map-card li a{color:var(--text)}
.map-card li a:hover{color:var(--brand)}
.prose{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:36px 40px;box-shadow:var(--shadow);max-width:900px;margin:0 auto}
.prose h2{font-size:20px;margin-top:30px}
.prose h2:first-of-type{margin-top:0}
.prose p,.prose li{font-size:15px;color:var(--text)}
.prose .note{font-size:13px;color:var(--muted);background:var(--surface-2);padding:14px 16px;border-radius:10px}
.steps--4{grid-template-columns:repeat(4,1fr)}
.prose figure{margin:0}
.err{text-align:center;padding:calc(var(--header-h) + 70px) 0 80px}
.err b{display:block;font-size:96px;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:14px;font-weight:800}
.err h1{font-size:26px;margin-bottom:10px}
.err p{color:var(--muted);max-width:520px;margin:0 auto 26px}
.err .hero-btns{justify-content:center;margin-bottom:26px}
html.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
html.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}html.js .reveal{opacity:1;transform:none;transition:none}.needle{transition:none}}
@media (max-width:992px){
.wrap{padding:0 20px}
.nav{position:fixed;top:var(--header-h);left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:2px;background:#08202a;padding:14px 18px 22px;max-height:calc(100vh - var(--header-h));overflow:auto;border-bottom:1px solid rgba(255,255,255,.1)}
.nav-toggle:checked~.nav{display:flex}
.nav-toggle:checked~.burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle:checked~.burger span:nth-child(2){opacity:0}
.nav-toggle:checked~.burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.burger{display:flex}
.nav-btn{width:100%;justify-content:space-between;padding:13px 12px;font-size:16px;border-radius:10px;background:rgba(255,255,255,.04)}
.dropdown{position:static;opacity:1;visibility:visible;transform:none;display:none;box-shadow:none;border:0;background:rgba(255,255,255,.04);margin:4px 0 6px;padding:6px}
.dd-input:checked~.dropdown{display:block}
.nav-item:hover .dropdown{display:none}
.dd-input:checked~.dropdown{display:block}
.dropdown a{color:rgba(233,242,243,.82);font-size:14px}
.dropdown a:hover{background:rgba(8,145,178,.24);color:#fff}
.nav-cta{display:none}
.hero{padding:calc(var(--header-h) + 40px) 0 56px}
.hero-inner{grid-template-columns:1fr;gap:34px}
.hero-lead{max-width:none}
.demo{max-width:440px;margin:0 auto;width:100%}
.stat-strip{grid-template-columns:repeat(2,1fr);gap:16px;margin-top:-34px}
.stat-strip div{border-right:0;border-bottom:1px solid var(--line);padding-bottom:10px}
.stat-strip div:nth-last-child(-n+2){border-bottom:0}
.grid-4,.grid-3,.grid-2{grid-template-columns:repeat(2,1fr)}
.node-panel{grid-template-columns:1fr}
.price-grid{grid-template-columns:1fr}
.quote-grid{grid-template-columns:1fr}
.news-grid{grid-template-columns:repeat(2,1fr)}
.steps{grid-template-columns:1fr;gap:26px}
.article-layout{grid-template-columns:1fr}
.sidebar{position:static;grid-template-columns:1fr;margin-top:8px}
.ver-grid,.install-grid{grid-template-columns:repeat(2,1fr)}
.req-grid{grid-template-columns:repeat(2,1fr)}
.map-grid{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr 1fr;gap:26px}
.article{padding:26px 22px}
.prose{padding:26px 22px}
.section{padding:62px 0}
}
@media (max-width:768px){
.hero h1{font-size:30px}
.hero-stats{gap:22px}
.hero-stats b{font-size:22px}
.grid-4,.grid-3,.grid-2,.news-grid,.ver-grid,.install-grid,.req-grid,.map-grid{grid-template-columns:1fr}
.prevnext{grid-template-columns:1fr}
.cta{padding:40px 22px;border-radius:18px}
.section-head{margin-bottom:32px}
.gauge-dial .kv{font-size:28px}
.article h2{font-size:19px}
}
@media (max-width:480px){
.wrap{padding:0 16px}
.hero{padding:calc(var(--header-h) + 28px) 0 44px}
.hero h1{font-size:26px}
.hero-lead{font-size:15.5px}
.btn-lg{width:100%;padding:14px 20px;font-size:16px}
.btn{min-height:46px}
.hero-btns{flex-direction:column;align-items:stretch}
.stat-strip{grid-template-columns:1fr;padding:20px;margin-top:-24px}
.stat-strip div{border-bottom:1px solid var(--line);padding-bottom:12px}
.stat-strip div:last-child{border-bottom:0}
.demo{padding:14px}
.demo-nodes label{font-size:12.5px;padding:10px 12px}
.footer-grid{grid-template-columns:1fr}
.err b{font-size:72px}
.article-meta{gap:10px}
}