:root{--brand:#00d68f;--brand-2:#00a86f;--brand-deep:#046b4d;--brand-ink:#04231c;--accent:#ff8a3d;--accent-2:#ffb638;--ink:#07181d;--ink-2:#0e2a31;--bg:#f4f8f7;--surface:#fff;--text:#16292e;--muted:#5c7378;--line:#dce8e4;--grad:linear-gradient(120deg,#00e6a0,#00b37e 55%,#0a8f8a);--grad-accent:linear-gradient(120deg,#ff9d4d,#ff7a29);--shadow:0 10px 30px rgba(6,40,34,.10);--shadow-lg:0 24px 60px rgba(6,40,34,.18);--radius:16px;--radius-sm:12px;--wrap:1200px}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:800;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px}
.section{padding:74px 0}
.section-alt{background:#fff}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--brand-deep);background:rgba(0,214,143,.12);border:1px solid rgba(0,168,111,.22);padding:6px 14px;border-radius:999px}
.sec-head{max-width:760px;margin:0 auto 42px;text-align:center}
.sec-head h2{font-size:clamp(26px,3vw,38px);margin:16px 0 12px}
.sec-head p{color:var(--muted);font-size:16px}
.lead{color:var(--muted)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s,color .2s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--grad);color:var(--brand-ink);box-shadow:0 12px 26px rgba(0,168,111,.32)}
.btn-primary:hover{box-shadow:0 18px 34px rgba(0,168,111,.42);transform:translateY(-2px)}
.btn-accent{background:var(--grad-accent);color:#2a1204;box-shadow:0 12px 26px rgba(255,122,41,.28)}
.btn-ghost{border-color:rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(0,214,143,.8)}
.btn-outline{border-color:var(--line);color:var(--text);background:#fff}
.btn-outline:hover{border-color:var(--brand-2);color:var(--brand-deep);transform:translateY(-2px)}
.btn-block{width:100%}
.skip{position:absolute;left:-9999px;top:0;background:#fff;color:var(--text);padding:10px 16px;z-index:999}
.skip:focus{left:12px;top:12px}
.site-header{position:fixed;inset:0 0 auto;z-index:80;background:rgba(7,24,29,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.07);transition:background .3s,box-shadow .3s}
.site-header.scrolled{background:rgba(7,24,29,.96);box-shadow:0 12px 30px rgba(0,0,0,.28)}
.nav-inner{max-width:var(--wrap);margin:0 auto;padding:0 20px;height:68px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:19px;letter-spacing:.01em;white-space:nowrap}
.brand img{width:32px;height:32px;border-radius:9px;background:rgba(0,214,143,.14);padding:3px;border:1px solid rgba(0,214,143,.35)}
.brand small{display:block;font-size:10px;font-weight:600;letter-spacing:.16em;color:rgba(0,214,143,.85);line-height:1}
.nav-tog{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.nav-burger{display:none;width:42px;height:42px;border-radius:10px;border:1px solid rgba(255,255,255,.2);margin-left:auto;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-burger span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:.25s}
.nav-list{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-group{position:relative}
.nav-group>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:6px;padding:10px 14px;border-radius:10px;color:#d3e6e0;font-size:15px;font-weight:600;transition:.2s}
.nav-group>summary::-webkit-details-marker{display:none}
.nav-group>summary::after{content:"▾";font-size:11px;color:var(--brand);transition:transform .25s}
.nav-group[open]>summary::after{transform:rotate(180deg)}
.nav-group>summary:hover,.nav-group[open]>summary{color:#fff;background:rgba(0,214,143,.12)}
.nav-link{padding:10px 14px;border-radius:10px;color:#d3e6e0;font-size:15px;font-weight:600;transition:.2s}
.nav-link:hover,.nav-link[aria-current]{color:#fff;background:rgba(0,214,143,.12)}
.dropdown{position:absolute;top:calc(100% + 10px);left:0;min-width:230px;background:#fff;border-radius:14px;box-shadow:var(--shadow-lg);padding:10px;border:1px solid var(--line)}
.dropdown a{display:block;padding:10px 14px;border-radius:10px;font-size:14px;color:#22383d;transition:.18s}
.dropdown a:hover{background:rgba(0,214,143,.12);color:var(--brand-deep);transform:translateX(3px)}
.dropdown a span{display:block;font-size:12px;color:var(--muted);font-weight:500}
.nav-cta{margin-left:8px;padding:10px 20px;font-size:14px}
.hero{position:relative;overflow:hidden;color:#fff;padding:126px 0 84px;background:radial-gradient(900px 520px at 82% -12%,rgba(0,214,143,.24),transparent 62%),radial-gradient(700px 420px at 8% 8%,rgba(255,138,61,.12),transparent 60%),linear-gradient(165deg,#061419,#0a262a 58%,#061419)}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:64px 64px;mask-image:radial-gradient(ellipse at 50% 20%,#000 20%,transparent 72%);-webkit-mask-image:radial-gradient(ellipse at 50% 20%,#000 20%,transparent 72%);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:54px;align-items:center}
.hero-tag{display:inline-flex;align-items:center;gap:10px;padding:7px 16px;border-radius:999px;background:rgba(0,214,143,.14);border:1px solid rgba(0,214,143,.32);color:#8ef2c9;font-size:13px;font-weight:600}
.hero-tag i{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(0,214,143,.18);display:inline-block}
.hero h1{font-size:clamp(32px,4.4vw,54px);margin:22px 0 18px;letter-spacing:-.02em}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{color:#b6cec8;font-size:17px;max-width:520px;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 34px}
.hero-data{display:flex;gap:32px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.12);padding-top:24px}
.hero-data div strong{display:block;font-size:26px;font-weight:800;color:#fff;line-height:1.2}
.hero-data div span{font-size:13px;color:#9db8b2}
.hero-data em{font-style:normal;font-size:14px;color:var(--brand);margin-left:2px}
.demo{background:rgba(255,255,255,.055);border:1px solid rgba(0,214,143,.28);border-radius:24px;padding:20px;box-shadow:0 30px 70px rgba(0,0,0,.4);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.demo-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:16px}
.demo-status{display:flex;align-items:center;gap:8px;font-size:13px;color:#a9e7cf;font-weight:600}
.demo-status i{width:8px;height:8px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand)}
.demo-status.off{color:#ffb08a}
.demo-status.off i{background:var(--accent);box-shadow:0 0 10px var(--accent)}
.demo-mode{font-size:12px;color:#8aa8a2;border:1px solid rgba(255,255,255,.16);padding:4px 10px;border-radius:999px}
.demo-nodes{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:18px}
.demo-nodes label{position:relative;display:block;text-align:center;font-size:12px;padding:8px 4px;border-radius:9px;border:1px solid rgba(255,255,255,.14);color:#bcd3ce;cursor:pointer;transition:.2s}
.demo-nodes input{position:absolute;opacity:0;width:0;height:0}
.demo-nodes input:checked+span{color:var(--brand-ink)}
.demo-nodes label:has(input:checked){background:var(--brand);border-color:var(--brand);color:var(--brand-ink);font-weight:700}
.demo-nodes label:hover{border-color:rgba(0,214,143,.7)}
.demo-gauge{position:relative;display:flex;justify-content:center;margin:4px 0 6px}
.demo-gauge svg{width:190px;height:190px;transform:rotate(-90deg)}
.gauge-track{fill:none;stroke:rgba(255,255,255,.1);stroke-width:10}
.gauge-arc{fill:none;stroke:var(--brand);stroke-width:10;stroke-linecap:round;stroke-dasharray:283;stroke-dashoffset:72;transition:stroke-dashoffset .9s cubic-bezier(.22,1,.36,1),stroke .3s}
.demo.off .gauge-arc{stroke:var(--accent);stroke-dashoffset:238}
.gauge-core{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.gauge-core b{font-size:34px;font-weight:800;letter-spacing:-.02em;line-height:1.1}
.gauge-core b i{font-style:normal;font-size:13px;color:#9db8b2;margin-left:3px;font-weight:600}
.gauge-core span{font-size:12px;color:#9db8b2;letter-spacing:.08em}
.demo-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.demo-metrics div{background:rgba(0,0,0,.28);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:10px 8px;text-align:center}
.demo-metrics b{display:block;font-size:16px;font-weight:800;color:#eafff7}
.demo-metrics span{font-size:11px;color:#8aa8a2}
.demo-foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px;gap:10px;flex-wrap:wrap}
.demo-conn{padding:10px 22px;border-radius:999px;border:none;background:var(--grad);color:var(--brand-ink);font-weight:800;font-size:14px;cursor:pointer}
.demo.off .demo-conn{background:var(--grad-accent);color:#2a1204}
.demo-note{font-size:11px;color:#8aa8a2}
.stats{position:relative;z-index:6;margin-top:-40px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px 18px;box-shadow:var(--shadow)}
.stats-grid div{text-align:center;padding:6px 8px;border-right:1px solid var(--line)}
.stats-grid div:last-child{border-right:none}
.stats-grid b{display:block;font-size:28px;font-weight:800;color:var(--brand-deep);letter-spacing:-.02em}
.stats-grid b em{font-style:normal;font-size:15px;margin-left:2px}
.stats-grid span{font-size:13px;color:var(--muted)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:transform .28s,box-shadow .28s,border-color .28s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(0,168,111,.4)}
.card-icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:24px;background:rgba(0,214,143,.14);border:1px solid rgba(0,168,111,.2);margin-bottom:16px}
.card h3{font-size:18px;margin-bottom:8px}
.card p{font-size:14px;color:var(--muted);line-height:1.8}
.card .tagline{display:inline-block;margin-top:14px;font-size:12px;font-weight:700;color:var(--brand-deep);background:rgba(0,214,143,.12);padding:4px 10px;border-radius:8px}
.feature-list{margin-top:12px;font-size:13px;color:var(--muted)}
.feature-list li{padding-left:18px;position:relative;margin-top:6px}
.feature-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand-2)}
.nodes{background:linear-gradient(180deg,#07181d,#0c262b);color:#fff}
.nodes .sec-head h2,.nodes .sec-head p{color:#fff}
.nodes .sec-head p{color:#a5c1bb}
.nodes .eyebrow{color:#8ef2c9;background:rgba(0,214,143,.14);border-color:rgba(0,214,143,.3)}
.node-panel{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:start}
.node-table{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:12px 18px}
.node-row{display:grid;grid-template-columns:1.1fr .8fr 62px 1.4fr;gap:12px;align-items:center;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.08);font-size:14px}
.node-row:last-child{border-bottom:none}
.node-row b{font-weight:700}
.node-row span{color:#a5c1bb;font-size:13px}
.node-row .ping{color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums}
.node-bar{height:6px;border-radius:4px;background:rgba(255,255,255,.12);overflow:hidden}
.node-bar i{display:block;height:100%;background:var(--grad);border-radius:4px}
.node-side{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:24px}
.node-side h3{font-size:19px;margin-bottom:10px}
.node-side p{font-size:14px;color:#a5c1bb}
.node-side ul{margin:16px 0 20px}
.node-side li{font-size:14px;padding:9px 0 9px 24px;position:relative;border-bottom:1px dashed rgba(255,255,255,.1);color:#d7e9e4}
.node-side li::before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:700}
.scenario-card{border:none;background:#fff;border-radius:16px;overflow:hidden;box-shadow:var(--shadow)}
.scenario-card .sc-head{padding:22px 22px 0;display:flex;gap:12px;align-items:center}
.scenario-card .sc-emoji{width:44px;height:44px;border-radius:12px;background:rgba(0,214,143,.13);display:flex;align-items:center;justify-content:center;font-size:21px}
.scenario-card h3{font-size:17px;margin-bottom:2px}
.scenario-card small{color:var(--brand-deep);font-size:12px;font-weight:600}
.scenario-card p{padding:12px 22px 22px;font-size:14px;color:var(--muted)}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
.step{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;position:relative}
.step::before{counter-increment:step;content:"0" counter(step);position:absolute;top:18px;right:22px;font-size:44px;font-weight:800;color:rgba(0,168,111,.12);letter-spacing:-.04em}
.step h3{font-size:17px;margin:8px 0 8px}
.step p{font-size:14px;color:var(--muted)}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.plan{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px 26px;display:flex;flex-direction:column;position:relative;transition:transform .28s,box-shadow .28s}
.plan:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.plan.popular{background:linear-gradient(170deg,#07201f,#0b332e 70%,#07201f);color:#fff;border-color:rgba(0,214,143,.5);box-shadow:0 24px 60px rgba(4,55,45,.35)}
.plan-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--grad-accent);color:#2a1204;font-size:12px;font-weight:800;padding:6px 16px;border-radius:999px;white-space:nowrap;box-shadow:0 10px 20px rgba(255,122,41,.35)}
.plan h3{font-size:17px;color:var(--muted);font-weight:700}
.plan.popular h3{color:#8ef2c9}
.plan .price{display:flex;align-items:baseline;gap:6px;margin:12px 0 4px}
.plan .price b{font-size:40px;font-weight:800;letter-spacing:-.03em;line-height:1}
.plan .price span{font-size:14px;color:var(--muted)}
.plan.popular .price span{color:#a5c1bb}
.plan .plan-desc{font-size:13px;color:var(--muted);margin-bottom:18px}
.plan.popular .plan-desc{color:#a5c1bb}
.plan ul{display:flex;flex-direction:column;gap:10px;margin-bottom:24px;font-size:14px}
.plan li{padding-left:22px;position:relative}
.plan li::before{content:"✓";position:absolute;left:0;color:var(--brand-2);font-weight:800}
.plan.popular li::before{color:var(--brand)}
.plan .btn{margin-top:auto}
.faq-list{max-width:880px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;transition:border-color .25s,box-shadow .25s}
.faq-item[open]{border-color:rgba(0,168,111,.45);box-shadow:var(--shadow)}
.faq-item summary{cursor:pointer;list-style:none;padding:18px 54px 18px 22px;font-weight:700;font-size:16px;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-size:22px;font-weight:400;color:var(--brand-2);transition:transform .25s}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-a{padding:0 22px 20px;font-size:14px;color:var(--muted);line-height:1.9}
.faq-a b{color:var(--text)}
.faq-a ol{counter-reset:f;margin-top:8px}
.faq-a ol li{counter-increment:f;padding-left:26px;position:relative;margin-top:6px}
.faq-a ol li::before{content:counter(f) ".";position:absolute;left:6px;color:var(--brand-2);font-weight:700}
.quotes-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.quote{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;display:flex;flex-direction:column;gap:14px}
.quote .stars{color:var(--accent-2);letter-spacing:2px;font-size:14px}
.quote p{font-size:14px;color:#2c4145;line-height:1.9;flex:1}
.quote .who{display:flex;align-items:center;gap:12px}
.avatar{width:40px;height:40px;border-radius:50%;background:var(--grad);color:var(--brand-ink);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;flex:none}
.quote .who b{display:block;font-size:14px}
.quote .who span{font-size:12px;color:var(--muted)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;transition:transform .28s,box-shadow .28s}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.news-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-card .nc-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-meta{display:flex;gap:10px;align-items:center;font-size:12px;color:var(--muted)}
.news-meta b{color:var(--brand-deep);background:rgba(0,214,143,.12);padding:3px 9px;border-radius:6px;font-weight:700}
.news-card h3{font-size:16px;line-height:1.55}
.news-card:hover h3{color:var(--brand-deep)}
.news-card p{font-size:13px;color:var(--muted);flex:1}
.readmore{font-size:13px;font-weight:700;color:var(--brand-deep)}
.cta{position:relative;overflow:hidden;background:radial-gradient(700px 400px at 15% 10%,rgba(0,214,143,.28),transparent 60%),linear-gradient(140deg,#061419,#0a2b28 70%,#071f1c);color:#fff;padding:66px 0;text-align:center}
.cta h2{font-size:clamp(26px,3vw,38px);margin-bottom:14px}
.cta p{color:#a9c6c0;max-width:620px;margin:0 auto 28px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.site-footer{background:#051014;color:#8ba39e;padding:56px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px}
.site-footer .brand{margin-bottom:14px}
.site-footer p{font-size:13px;line-height:1.9;color:#7d968f}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:14px;letter-spacing:.04em}
.footer-col a{display:block;padding:5px 0;font-size:13px;color:#8ba39e;transition:.2s}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12px;color:#6f8883}
.footer-bottom a{margin-left:16px}
.footer-bottom a:first-child{margin-left:0}
.footer-bottom a:hover{color:var(--brand)}
.to-top{position:fixed;right:20px;bottom:22px;width:44px;height:44px;border-radius:50%;background:#fff;color:var(--brand-deep);border:1px solid var(--line);box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;font-size:18px;z-index:70}
.to-top:hover{background:var(--brand);color:var(--brand-ink);border-color:var(--brand)}
.page-hero{padding:120px 0 54px;background:radial-gradient(760px 420px at 88% -20%,rgba(0,214,143,.2),transparent 62%),linear-gradient(160deg,#061419,#0a262a);color:#fff}
.page-hero h1{font-size:clamp(28px,3.6vw,44px);margin:14px 0 12px}
.page-hero p{color:#adc8c2;max-width:700px;font-size:16px}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:#9db8b2;margin-bottom:6px}
.breadcrumb a{color:#9db8b2}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span{color:#5f7b76}
.breadcrumb i{font-style:normal;color:#4f6a65}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 316px;gap:34px;align-items:start;padding:44px 0 70px}
.article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:34px 38px}
.article h1{font-size:clamp(24px,2.8vw,34px);line-height:1.4;margin-bottom:16px}
.article-meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center;font-size:13px;color:var(--muted);padding-bottom:18px;border-bottom:1px solid var(--line);margin-bottom:22px}
.article-meta b{color:var(--brand-deep);background:rgba(0,214,143,.12);padding:3px 10px;border-radius:6px}
.article-cover{width:100%;border-radius:14px;margin-bottom:24px;aspect-ratio:16/9;object-fit:cover}
.article-body{font-size:16px;line-height:1.95;color:#25393e}
.article-body p{margin:16px 0}
.article-body h2{font-size:21px;margin:34px 0 12px;padding-left:14px;border-left:4px solid var(--brand);line-height:1.5}
.article-body h3{font-size:17px;margin:24px 0 8px}
.article-body img{width:100%;border-radius:12px;margin:20px 0 8px;aspect-ratio:2/1;object-fit:cover}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:12px;color:var(--muted);text-align:center;margin-top:8px}
.article-body ul{list-style:none;margin:14px 0}
.article-body ul li{padding-left:20px;position:relative;margin:7px 0}
.article-body ul li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand-2)}
.article-body blockquote{margin:22px 0;padding:18px 22px;background:rgba(0,214,143,.07);border-left:4px solid var(--brand);border-radius:0 12px 12px 0;font-size:15px;color:#22403c}
.article-body blockquote cite{display:block;margin-top:8px;font-style:normal;font-size:13px;color:var(--muted)}
.article-body strong{color:var(--brand-deep)}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0 6px;padding-top:20px;border-top:1px dashed var(--line)}
.article-tags a{font-size:12px;padding:6px 12px;border-radius:999px;border:1px solid var(--line);color:var(--muted);transition:.2s}
.article-tags a:hover{border-color:var(--brand-2);color:var(--brand-deep);background:rgba(0,214,143,.1)}
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}
.article-nav a{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;font-size:13px;color:var(--muted);transition:.2s}
.article-nav a:hover{border-color:var(--brand-2);color:var(--brand-deep);transform:translateY(-3px);box-shadow:var(--shadow)}
.article-nav b{display:block;color:var(--text);font-size:14px;margin-top:4px}
.article-nav .next{text-align:right}
.comments{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px 34px;margin-top:22px}
.comments h2{font-size:18px;margin-bottom:18px}
.comment{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line)}
.comment:last-child{border-bottom:none}
.comment-body b{font-size:14px}
.comment-body time{font-size:12px;color:var(--muted);margin-left:10px}
.comment-body p{font-size:14px;color:#3a5156;margin-top:4px}
.related{margin-top:22px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px 28px}
.related h2{font-size:17px;margin-bottom:14px}
.related a{display:flex;gap:12px;align-items:baseline;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px;color:#2c4145}
.related a:last-child{border-bottom:none}
.related a:hover{color:var(--brand-deep)}
.related a span{font-size:12px;color:var(--muted);flex:none}
.sidebar{display:flex;flex-direction:column;gap:18px;position:sticky;top:88px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow)}
.side-card h3{font-size:15px;padding-left:12px;border-left:4px solid var(--brand);margin-bottom:14px;line-height:1.4}
.toc{position:relative;padding-left:18px;border-left:1px solid var(--line)}
.toc li{position:relative;padding:7px 0}
.toc li::before{content:"";position:absolute;left:-23px;top:16px;width:7px;height:7px;border-radius:50%;background:#cfe0db;border:2px solid #fff}
.toc li.active::before{background:var(--brand);box-shadow:0 0 0 3px rgba(0,214,143,.2)}
.toc a{font-size:13px;color:var(--muted);display:block;line-height:1.6}
.toc a:hover,.toc li.active a{color:var(--brand-deep);font-weight:700}
.hot-list li{display:flex;gap:10px;align-items:flex-start;padding:8px 0;border-bottom:1px dashed var(--line)}
.hot-list li:last-child{border-bottom:none}
.hot-list .rank{width:22px;height:22px;border-radius:7px;background:#eef3f2;color:#7a8f8a;font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;flex:none;margin-top:1px;transition:.2s}
.hot-list li:nth-child(1) .rank{background:var(--grad);color:var(--brand-ink)}
.hot-list li:nth-child(2) .rank{background:linear-gradient(120deg,#ffb638,#ff8a3d);color:#3a1d05}
.hot-list li:nth-child(3) .rank{background:linear-gradient(120deg,#ffe08a,#ffc857);color:#3a2a05}
.hot-list a{font-size:13px;color:#2c4145;line-height:1.6}
.hot-list li:hover .rank{transform:scale(1.08)}
.hot-list li:hover a{color:var(--brand-deep)}
.cat-tags{display:flex;flex-wrap:wrap;gap:8px}
.cat-tags a{font-size:12px;padding:6px 12px;border-radius:999px;background:#f1f6f5;border:1px solid var(--line);color:var(--muted);transition:.2s}
.cat-tags a:hover{background:rgba(0,214,143,.12);border-color:var(--brand-2);color:var(--brand-deep)}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.dl-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;display:flex;flex-direction:column;gap:12px;transition:.28s}
.dl-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(0,168,111,.4)}
.dl-card .ver{font-size:12px;color:var(--muted);font-weight:700;letter-spacing:.08em}
.dl-card h3{font-size:19px}
.dl-card .size{font-size:13px;color:var(--muted)}
.dl-card ul{font-size:13px;color:var(--muted);display:flex;flex-direction:column;gap:8px;margin:4px 0 10px}
.dl-card li{padding-left:20px;position:relative}
.dl-card li::before{content:"✓";position:absolute;left:0;color:var(--brand-2);font-weight:800}
.dl-card .btn{margin-top:auto}
.req-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.req{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}
.req b{display:block;font-size:13px;color:var(--brand-deep);margin-bottom:6px}
.req span{font-size:14px;color:#2c4145}
.steps4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:s4}
.steps4 .step::before{content:"0" counter(s4)}
.prose{background:#fff;border:1px solid var(--line);border-radius:18px;padding:36px 40px;max-width:900px;margin:44px auto 70px}
.prose h1{font-size:clamp(24px,3vw,32px);margin-bottom:8px}
.prose .updated{font-size:13px;color:var(--muted);margin-bottom:22px}
.prose h2{font-size:19px;margin:28px 0 10px;padding-left:12px;border-left:4px solid var(--brand)}
.prose p{font-size:15px;color:#31474c;line-height:1.95;margin:10px 0}
.prose ul{margin:10px 0}
.prose li{padding-left:20px;position:relative;margin:6px 0;font-size:15px;color:#31474c}
.prose li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand-2)}
.prose .note{background:rgba(0,214,143,.08);border:1px solid rgba(0,168,111,.22);border-radius:12px;padding:14px 18px;font-size:14px;color:#2c4145;margin:18px 0}
.error-page{min-height:100vh;display:flex;align-items:center;padding:120px 0 80px;background:radial-gradient(700px 400px at 50% -10%,rgba(0,214,143,.22),transparent 62%),linear-gradient(165deg,#061419,#0a262a)}
.error-box{text-align:center;color:#fff;max-width:620px;margin:0 auto}
.error-code{font-size:clamp(80px,14vw,140px);font-weight:800;letter-spacing:-.05em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.error-box h1{font-size:26px;margin:10px 0 12px}
.error-box p{color:#a9c6c0;font-size:15px;margin-bottom:26px}
.sitemap-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.sitemap-cols .card ul{margin-top:10px}
.sitemap-cols .card li{padding:6px 0;border-bottom:1px dashed var(--line);font-size:14px}
.sitemap-cols .card li:last-child{border-bottom:none}
.sitemap-cols .card a:hover{color:var(--brand-deep)}
html.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s cubic-bezier(.22,1,.36,1)}
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}.btn,.card,.news-card,.plan,.dl-card{transition:none}}
@media(max-width:992px){
.nav-burger{display:flex}
.nav-list{position:absolute;top:68px;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:4px;background:rgba(6,20,24,.98);padding:16px 20px 22px;border-bottom:1px solid rgba(255,255,255,.1);max-height:calc(100vh - 68px);overflow:auto}
.nav-tog:checked~.nav-list{display:flex}
.nav-tog:checked~.nav-burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-tog:checked~.nav-burger span:nth-child(2){opacity:0}
.nav-tog:checked~.nav-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-group>summary,.nav-link{padding:12px 6px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.08);border-radius:0}
.dropdown{position:static;box-shadow:none;border:none;background:rgba(255,255,255,.05);margin:6px 0 10px;padding:6px;min-width:0}
.dropdown a{color:#cfe3dd;padding:10px 12px}
.dropdown a span{color:#7f9a94}
.nav-cta{margin:12px 0 0;text-align:center;justify-content:center}
.hero{padding:104px 0 70px}
.hero-grid{grid-template-columns:1fr;gap:36px}
.hero-sub{max-width:none}
.article-layout{grid-template-columns:1fr;padding:30px 0 56px}
.sidebar{position:static}
.node-panel{grid-template-columns:1fr}
.grid-3,.quotes-grid,.news-grid,.pricing-grid,.dl-grid,.req-grid,.steps-grid,.sitemap-cols{grid-template-columns:repeat(2,1fr)}
.steps4{grid-template-columns:repeat(2,1fr)}
.stats-grid{grid-template-columns:repeat(2,1fr);gap:8px}
.stats-grid div:nth-child(2){border-right:none}
.footer-grid{grid-template-columns:1fr 1fr;gap:28px}
.article{padding:26px 22px}
}
@media(max-width:768px){
.section{padding:54px 0}
.grid-3,.grid-2,.quotes-grid,.news-grid,.pricing-grid,.dl-grid,.req-grid,.steps-grid,.steps4,.sitemap-cols{grid-template-columns:1fr}
.stats{margin-top:-28px}
.stats-grid b{font-size:23px}
.hero{padding:96px 0 96px}
.hero-data{gap:20px}
.hero-data div strong{font-size:22px}
.hero-actions .btn{flex:1 1 46%}
.demo-nodes{grid-template-columns:repeat(2,1fr)}
.article-layout{padding-top:24px}
.article-nav{grid-template-columns:1fr}
.article-nav .next{text-align:left}
.comments,.related,.article{padding:22px 18px}
.footer-grid{grid-template-columns:1fr 1fr}
.prose{padding:26px 20px;margin:28px auto 54px}
.page-hero{padding:100px 0 40px}
}
@media(max-width:480px){
body{font-size:15px}
.wrap{padding:0 16px}
.hero h1{font-size:30px}
.hero-actions{flex-direction:column}
.hero-actions .btn{width:100%}
.demo{padding:16px;border-radius:18px}
.demo-gauge svg{width:160px;height:160px}
.gauge-core b{font-size:29px}
.node-row{grid-template-columns:1fr 64px;gap:6px 10px;font-size:13px;padding:12px 0}
.node-row .node-bar{grid-column:1/-1}
.node-row span:nth-child(2){display:none}
.stats-grid{grid-template-columns:1fr 1fr;padding:18px 10px}
.stats-grid div{padding:4px;border:none}
.footer-grid{grid-template-columns:1fr}
.footer-bottom{flex-direction:column;gap:8px}
.article h1{font-size:22px}
.cta-actions .btn{width:100%}
.to-top{right:14px;bottom:16px}
}