*,*::before,*::after{box-sizing:border-box}
:root{--ink:#0b1c2c;--ink-2:#3c556b;--ink-3:#6d829a;--line:#e2eaf2;--bg:#f5f9fd;--card:#fff;--brand:#0f62d6;--brand-2:#0aa5a0;--brand-3:#0b3f86;--grad:linear-gradient(120deg,#0f62d6,#0aa5a0);--radius:18px;--shadow:0 10px 30px rgba(15,50,90,.08);--shadow-lg:0 22px 50px rgba(11,52,94,.16);--nav-h:70px}
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;color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-3)}
h1,h2,h3,h4{line-height:1.3;margin:0 0 14px;color:var(--ink);font-weight:800;letter-spacing:-.4px}
h1{font-size:2.55rem}
h2{font-size:2rem}
h3{font-size:1.22rem}
p{margin:0 0 14px}
ul{margin:0 0 14px;padding-left:20px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
.section{padding:84px 0}
.section.alt{background:#fff}
.section.tint{background:linear-gradient(180deg,#eef6ff,#f7fbfd)}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:800;letter-spacing:1.6px;text-transform:uppercase;color:var(--brand-2);margin-bottom:10px}
.lead{font-size:1.08rem;color:var(--ink-2);max-width:760px}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 26px;border-radius:999px;font-weight:700;font-size:1rem;border:2px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease;background:var(--grad);color:#fff;box-shadow:0 10px 22px rgba(15,98,214,.28)}
.btn:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(15,98,214,.34)}
.btn.ghost{background:#fff;color:var(--brand);border-color:#bfd6f2;box-shadow:none}
.btn.ghost:hover{color:var(--brand-3);border-color:var(--brand);background:#f2f8ff}
.btn.sm{min-height:40px;padding:8px 18px;font-size:.92rem}
.btn.mobile-only{display:none}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;z-index:200;background:#fff;padding:10px 16px;border-radius:8px}
header.site{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.74);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid rgba(226,234,242,.7);transition:background .25s ease,box-shadow .25s ease}
header.site.scrolled{background:rgba(9,26,45,.92);border-bottom-color:rgba(255,255,255,.08);box-shadow:0 8px 26px rgba(4,20,38,.22)}
.nav-wrap{display:flex;align-items:center;gap:18px;height:var(--nav-h)}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.12rem;color:var(--ink);white-space:nowrap}
.logo img{width:36px;height:36px;border-radius:9px}
.logo small{display:block;font-size:.62rem;font-weight:600;letter-spacing:2px;color:var(--ink-3);text-transform:uppercase;line-height:1}
header.site.scrolled .logo,header.site.scrolled .logo small{color:#fff}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-item{position:relative}
.nav-item:last-of-type>.dropdown{left:auto;right:0}
.nav-item>summary{list-style:none;cursor:pointer}
.nav-item>summary::-webkit-details-marker{display:none}
.nav-item>summary,.nav-item>a{display:flex;align-items:center;gap:5px;padding:10px 13px;border-radius:10px;font-weight:600;font-size:.96rem;color:var(--ink);transition:background .18s,color .18s}
.nav-item>summary:hover,.nav-item>a:hover,.nav-item[open]>summary{background:rgba(15,98,214,.08);color:var(--brand)}
header.site.scrolled .nav-item>summary,header.site.scrolled .nav-item>a{color:rgba(255,255,255,.9)}
header.site.scrolled .nav-item>summary:hover,header.site.scrolled .nav-item>a:hover{background:rgba(255,255,255,.12);color:#fff}
.caret{display:inline-block;font-size:.7rem;transition:transform .2s;color:inherit}
.nav-item[open] .caret{transform:rotate(180deg)}
.dropdown{position:absolute;top:calc(100% + 6px);left:0;min-width:216px;background:#fff;border-radius:14px;box-shadow:var(--shadow-lg);padding:8px;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .18s,transform .18s,visibility .18s;border:1px solid var(--line)}
.nav-item[open]>.dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:block;padding:9px 12px;border-radius:9px;color:var(--ink-2);font-size:.92rem;font-weight:600}
.dropdown a:hover{background:#eef6ff;color:var(--brand)}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:8px}
.burger{display:none;width:44px;height:44px;margin-left:auto;border-radius:11px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;cursor:pointer;font-size:1.25rem;color:var(--ink)}
.nav-toggle{position:absolute;left:-9999px}
header.site.scrolled .burger{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.18);color:#fff}
.hero{position:relative;overflow:hidden;padding:calc(var(--nav-h) + 62px) 0 78px;background:radial-gradient(1100px 520px at 78% -8%,rgba(10,165,160,.35),transparent 60%),radial-gradient(900px 520px at 8% 12%,rgba(15,98,214,.5),transparent 62%),linear-gradient(160deg,#07182b,#0a2846 62%,#0b3a52);color:#fff}
.hero h1,.hero h2{color:#fff}
.hero .lead{color:#c8dcee}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.hero .eyebrow{color:#7fe6dc}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);font-size:.82rem;font-weight:700;color:#dff7f4;margin-bottom:16px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 20px}
.hero .btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.hero .btn.ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14)}
.hero-stats b{display:block;font-size:1.5rem;color:#fff;letter-spacing:-.5px}
.hero-stats span{font-size:.84rem;color:#a9c6dd}
.stats-band{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;background:#fff;border-radius:22px;box-shadow:var(--shadow);padding:26px;margin-top:-46px;position:relative;z-index:3}
.stats-band div{text-align:center;border-right:1px solid var(--line)}
.stats-band div:last-child{border-right:0}
.stats-band b{display:block;font-size:1.65rem;color:var(--brand);letter-spacing:-.6px}
.stats-band span{font-size:.86rem;color:var(--ink-3)}
.demo{position:relative;max-width:430px;margin-left:auto}
.demo-radio,.demo-toggle{position:absolute;left:-9999px}
.demo-shell{position:relative;border-radius:22px;padding:20px;background:linear-gradient(165deg,rgba(255,255,255,.16),rgba(255,255,255,.05));border:1px solid rgba(255,255,255,.26);box-shadow:0 30px 60px rgba(2,16,32,.45);backdrop-filter:blur(9px);color:#fff}
.demo-bar{display:flex;align-items:center;justify-content:space-between;font-size:.78rem;color:#b9d4e8;margin-bottom:12px}
.dot-row{display:flex;gap:6px}
.dot-row i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.35)}
.dot-row i:first-child{background:#ff6b6b}.dot-row i:nth-child(2){background:#ffc86b}.dot-row i:nth-child(3){background:#4fd6a8}
.demo-status{display:flex;align-items:center;gap:8px;font-weight:700;font-size:.9rem}
.demo-status .st-on{display:none;color:#7ff0cf}
.demo-toggle:checked ~ .demo-shell .demo-status .st-on{display:inline}
.demo-toggle:checked ~ .demo-shell .demo-status .st-off{display:none}
.gauge{position:relative;width:100%;max-width:250px;margin:4px auto 6px}
.gauge svg{width:100%;height:auto;display:block}
.gauge .track{fill:none;stroke:rgba(255,255,255,.16);stroke-width:13;stroke-linecap:round}
.gauge .arc{fill:none;stroke:url(#gaugeGrad);stroke-width:13;stroke-linecap:round;stroke-dasharray:471;stroke-dashoffset:471;transition:stroke-dashoffset 1.4s cubic-bezier(.22,.9,.28,1)}
.demo-toggle:checked ~ .demo-shell .gauge .arc{stroke-dashoffset:96}
.gauge .needle{transform-origin:125px 125px;transform:rotate(-90deg);transition:transform 1.3s cubic-bezier(.22,.9,.28,1);stroke:#fff;stroke-width:4;stroke-linecap:round}
.demo-toggle:checked ~ .demo-shell .gauge .needle{transform:rotate(38deg)}
.gauge-num{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);text-align:center;line-height:1.25}
.gauge-num b{display:block;font-size:1.7rem;letter-spacing:-1px;color:#fff}
.gauge-num span{font-size:.74rem;color:#b9d4e8;display:block}
.gauge-num .n{display:none}
.gauge-num .n.idle{font-size:1.02rem;font-weight:700;color:#cfe4f3;letter-spacing:0}
#demo-conn:not(:checked) ~ .demo-shell .gauge-num .n.idle{display:block}
.demo-toggle:checked ~ .demo-shell .gauge-num .n.idle{display:none}
.demo-nodes{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:14px 0}
.demo-nodes label{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 11px;border-radius:11px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);font-size:.82rem;cursor:pointer;transition:background .18s,border-color .18s}
.demo-nodes label:hover{background:rgba(255,255,255,.16)}
.demo-nodes em{font-style:normal;color:#8fe8dd;font-weight:700;font-size:.78rem}
#node-hk:checked ~ .demo-shell label[for=node-hk],#node-jp:checked ~ .demo-shell label[for=node-jp],#node-sg:checked ~ .demo-shell label[for=node-sg],#node-us:checked ~ .demo-shell label[for=node-us]{border-color:#7ff0cf;background:rgba(127,240,207,.18)}
.demo-toggle:checked ~ .demo-shell label[for=demo-conn]{background:#7ff0cf;color:#07182b;box-shadow:0 10px 22px rgba(127,240,207,.28)}
.conn-btn{display:flex;align-items:center;justify-content:center;gap:8px;min-height:50px;border-radius:14px;background:linear-gradient(120deg,#2f8bff,#12c9bd);color:#04182a;font-weight:800;cursor:pointer;font-size:.98rem;transition:transform .18s,box-shadow .18s}
.conn-btn:hover{transform:translateY(-1px);box-shadow:0 12px 26px rgba(20,180,190,.3)}
.demo-foot{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px;font-size:.78rem;color:#b9d4e8}
.demo-foot b{display:block;color:#fff;font-size:.98rem}
.demo-switches{display:flex;gap:14px;margin:0 0 14px;font-size:.8rem;color:#cfe4f3}
.demo-switches label{display:flex;align-items:center;gap:7px;cursor:pointer}
.demo-switches .sw{position:absolute;left:-9999px}
.sw-ui{position:relative;width:34px;height:19px;border-radius:999px;background:rgba(255,255,255,.24);transition:background .2s;flex:0 0 auto}
.sw-ui::after{content:"";position:absolute;top:2px;left:2px;width:15px;height:15px;border-radius:50%;background:#fff;transition:transform .2s}
.sw:checked+.sw-ui{background:#7ff0cf}
.sw:checked+.sw-ui::after{transform:translateX(15px)}
.conn-btn .st-on{display:none}
.demo-toggle:checked ~ .demo-shell .conn-btn .st-on{display:inline}
.demo-toggle:checked ~ .demo-shell .conn-btn .st-off{display:none}
#demo-conn:not(:checked) ~ .demo-shell .gauge-num .n-hk,#demo-conn:not(:checked) ~ .demo-shell .gauge-num .n-jp,#demo-conn:not(:checked) ~ .demo-shell .gauge-num .n-sg,#demo-conn:not(:checked) ~ .demo-shell .gauge-num .n-us{display:none!important}
#node-hk:checked ~ .demo-shell .gauge-num .n-hk,#node-jp:checked ~ .demo-shell .gauge-num .n-jp,#node-sg:checked ~ .demo-shell .gauge-num .n-sg,#node-us:checked ~ .demo-shell .gauge-num .n-us{display:block}
.hero-pulse{position:absolute;inset:auto -10% -30% 40%;height:420px;background:radial-gradient(circle,rgba(18,201,189,.22),transparent 62%);pointer-events:none}
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:#cfe2f7}
.card .ico{display:inline-flex;align-items:center;justify-content:center;width:50px;height:50px;border-radius:14px;background:linear-gradient(140deg,#e8f2ff,#e4fbf7);font-size:1.5rem;margin-bottom:14px}
.card p{color:var(--ink-2);margin-bottom:0;font-size:.95rem}
.card h3{margin-bottom:8px}
.node-card{display:flex;align-items:center;gap:12px;padding:16px 18px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.node-card .flag{font-size:1.3rem}
.node-card b{display:block;font-size:.98rem}
.node-card span{font-size:.8rem;color:var(--ink-3)}
.node-card .ping{margin-left:auto;font-weight:800;color:#0a9d7d;font-size:.9rem}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--shadow)}
.step b.num{display:inline-flex;width:38px;height:38px;border-radius:11px;background:var(--grad);color:#fff;align-items:center;justify-content:center;font-size:1rem;margin-bottom:12px}
.step p{color:var(--ink-2);font-size:.94rem;margin:0}
.price{position:relative;background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px 26px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.price.pop{border:2px solid var(--brand);box-shadow:0 24px 48px rgba(15,98,214,.18);transform:translateY(-6px)}
.price .tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:.74rem;font-weight:800;padding:5px 14px;border-radius:999px;letter-spacing:.5px}
.price h3{margin-bottom:4px}
.price .amount{font-size:2.1rem;font-weight:800;letter-spacing:-1px;margin:10px 0 2px}
.price .amount small{font-size:.86rem;color:var(--ink-3);font-weight:600;letter-spacing:0}
.price ul{list-style:none;padding:0;margin:16px 0 22px;font-size:.93rem;color:var(--ink-2)}
.price ul li{padding:7px 0;border-bottom:1px dashed var(--line)}
.price ul li::before{content:"✓";color:var(--brand-2);font-weight:800;margin-right:8px}
.price .btn{margin-top:auto;width:100%}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0;margin-bottom:12px;box-shadow:var(--shadow);overflow:hidden}
.faq summary{list-style:none;cursor:pointer;padding:18px 52px 18px 20px;font-weight:700;position:relative;font-size:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);width:26px;height:26px;border-radius:8px;background:#eef6ff;color:var(--brand);display:flex;align-items:center;justify-content:center;font-weight:800;transition:transform .2s,background .2s}
.faq details[open] summary::after{content:"−";background:var(--brand);color:#fff;transform:translateY(-50%) rotate(180deg)}
.faq details[open] summary{color:var(--brand-3)}
.faq .ans{padding:0 20px 20px;color:var(--ink-2);font-size:.94rem}
.faq .ans ol{margin:8px 0 0;padding-left:20px}
.faq .ans li{margin-bottom:6px}
.quote{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.quote p{font-size:.96rem;color:var(--ink-2)}
.who{display:flex;align-items:center;gap:12px;margin-top:16px}
.who i{width:42px;height:42px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-style:normal;font-weight:800}
.who b{display:block;font-size:.92rem}
.who span{font-size:.8rem;color:var(--ink-3)}
.stars{color:#f5a623;letter-spacing:2px;font-size:.9rem;margin-bottom:8px}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.news-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-card .body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.news-card .meta{font-size:.78rem;color:var(--ink-3);display:flex;gap:10px;margin-bottom:8px}
.news-card h3{font-size:1.06rem;margin-bottom:8px}
.news-card h3 a{color:var(--ink)}
.news-card h3 a:hover{color:var(--brand)}
.news-card p{font-size:.9rem;color:var(--ink-2);margin-bottom:14px}
.news-card .more{margin-top:auto;font-weight:700;font-size:.88rem;color:var(--brand)}
.cta-band{background:linear-gradient(125deg,#0a2b4d,#0d5aa8 58%,#0aa5a0);border-radius:24px;padding:48px;color:#fff;display:grid;grid-template-columns:1.3fr .7fr;gap:26px;align-items:center;box-shadow:0 24px 50px rgba(9,40,72,.24)}
.cta-band h2{color:#fff;margin-bottom:8px}
.cta-band p{color:#c9e3f5;margin:0}
.cta-band .acts{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}
.cta-band .btn.ghost{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.55)}
footer.site{background:#06182b;color:#a8c2d8;padding:56px 0 26px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
footer.site h4{color:#fff;font-size:.96rem;margin-bottom:14px;letter-spacing:.2px}
footer.site a{display:block;color:#a8c2d8;font-size:.9rem;padding:5px 0}
footer.site a:hover{color:#7ff0cf}
footer.site .brandline{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;margin-bottom:12px}
footer.site .brandline img{width:34px;height:34px;border-radius:8px}
footer.site p{font-size:.88rem;color:#90adc4}
.foot-bottom{margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:.82rem;color:#87a3ba}
.foot-bottom a{display:inline;padding:0 8px}
.to-top{position:fixed;right:20px;bottom:24px;width:46px;height:46px;border-radius:13px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-lg);display:flex;align-items:center;justify-content:center;color:var(--brand);font-weight:800;z-index:90;opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s,transform .25s;transform:translateY(8px)}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.page-head{background:linear-gradient(140deg,#07182b,#0b3a52);color:#fff;padding:calc(var(--nav-h) + 52px) 0 48px}
.page-head h1{color:#fff;margin-bottom:10px}
.page-head p{color:#bcd8ea;margin:0;max-width:720px}
.crumb{font-size:.82rem;color:#93b7d1;margin-bottom:14px}
.crumb a{color:#cfe8f7}
.crumb span{color:#7ff0cf}
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px;align-items:start;padding:56px 0 20px}
.article{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px;box-shadow:var(--shadow)}
.article h1{font-size:2rem}
.article .meta{display:flex;flex-wrap:wrap;gap:14px;font-size:.84rem;color:var(--ink-3);margin-bottom:18px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.article .cover{width:100%;border-radius:14px;margin:8px 0 22px}
.article h2{font-size:1.35rem;margin-top:30px;scroll-margin-top:90px}
.article p{color:#2b4257;font-size:1rem}
.article blockquote{margin:20px 0;padding:16px 20px;border-left:4px solid var(--brand-2);background:#f3fbfa;border-radius:0 12px 12px 0;color:#245;font-size:.96rem}
.article blockquote cite{display:block;margin-top:6px;font-style:normal;font-size:.84rem;color:var(--ink-3)}
.article table{width:100%;border-collapse:collapse;margin:18px 0;font-size:.9rem}
.article th,.article td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article th{background:#f2f8ff;color:var(--brand-3)}
.article figure{margin:22px 0}
.article figure img{width:100%;border-radius:12px;aspect-ratio:2/1;object-fit:cover}
.article figcaption{font-size:.82rem;color:var(--ink-3);margin-top:8px}
.pager{display:flex;justify-content:space-between;gap:14px;margin-top:30px;padding-top:20px;border-top:1px solid var(--line);font-weight:700;font-size:.9rem}
.side{position:sticky;top:calc(var(--nav-h) + 18px);display:flex;flex-direction:column;gap:18px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow)}
.side-card h4{font-size:.95rem;position:relative;padding-left:12px;margin-bottom:14px}
.side-card h4::before{content:"";position:absolute;left:0;top:3px;bottom:3px;width:4px;border-radius:3px;background:var(--grad)}
.toc{list-style:none;margin:0;padding:0 0 0 14px;border-left:2px solid #e8f0f9}
.toc li{position:relative;margin-bottom:4px}
.toc li::before{content:"";position:absolute;left:-19px;top:12px;width:8px;height:8px;border-radius:50%;background:#cfdded;border:2px solid #fff}
.toc li.active::before{background:var(--brand)}
.toc a{display:block;padding:5px 0;font-size:.87rem;color:var(--ink-2);font-weight:600}
.toc li.active a{color:var(--brand)}
.rank{list-style:none;margin:0;padding:0;counter-reset:rk}
.rank li{counter-increment:rk;display:flex;gap:10px;align-items:flex-start;padding:8px 0;border-bottom:1px dashed var(--line)}
.rank li:last-child{border-bottom:0}
.rank li::before{content:counter(rk);flex:0 0 22px;height:22px;border-radius:7px;background:#eef2f7;color:var(--ink-3);font-size:.76rem;font-weight:800;display:flex;align-items:center;justify-content:center;transition:transform .18s}
.rank li:nth-child(1)::before{background:linear-gradient(140deg,#0f62d6,#0aa5a0);color:#fff}
.rank li:nth-child(2)::before{background:linear-gradient(140deg,#ff9a3c,#ff6b3c);color:#fff}
.rank li:nth-child(3)::before{background:linear-gradient(140deg,#f6c34a,#d99a1f);color:#fff}
.rank li:hover::before{transform:scale(1.12)}
.rank a{font-size:.87rem;color:var(--ink-2);font-weight:600}
.rank li:hover a{color:var(--brand)}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tags a{font-size:.8rem;padding:5px 12px;border-radius:999px;background:#f1f6fc;color:var(--ink-2);border:1px solid transparent;font-weight:600}
.tags a:hover{background:#fff;border-color:var(--brand);color:var(--brand)}
.comments{margin-top:34px}
.comments h3{font-size:1.15rem;margin-bottom:16px}
.comment{display:flex;gap:12px;padding:16px 0;border-bottom:1px dashed var(--line)}
.comment i{flex:0 0 40px;height:40px;border-radius:50%;background:#e8f2ff;color:var(--brand);display:flex;align-items:center;justify-content:center;font-style:normal;font-weight:800}
.comment b{font-size:.92rem}
.comment time{font-size:.78rem;color:var(--ink-3);margin-left:8px}
.comment p{font-size:.92rem;color:var(--ink-2);margin:6px 0 0}
.news-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow)}
.news-hero img{width:100%;border-radius:14px;aspect-ratio:16/9;object-fit:cover}
.news-hero h2{font-size:1.5rem;margin:10px 0 8px}
.news-hero p{color:var(--ink-2);font-size:.95rem}
.dl-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.dl-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.dl-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.dl-card h3{font-size:1.05rem;margin-bottom:2px}
.dl-card .ver{font-size:.78rem;color:var(--ink-3);margin-bottom:12px}
.dl-card .size{font-weight:800;color:var(--brand);margin-bottom:10px}
.dl-card ul{list-style:none;padding:0;margin:0 0 18px;font-size:.88rem;color:var(--ink-2)}
.dl-card ul li{padding:5px 0}
.dl-card ul li::before{content:"·";color:var(--brand-2);font-weight:800;margin-right:8px}
.dl-card .btn{margin-top:auto;width:100%}
.specs{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.spec{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:var(--shadow)}
.spec b{display:block;font-size:.78rem;color:var(--ink-3);font-weight:700;letter-spacing:.5px;margin-bottom:4px}
.spec span{font-weight:700;color:var(--ink)}
.doc{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px;box-shadow:var(--shadow);max-width:900px;margin:0 auto}
.doc h2{font-size:1.25rem;margin-top:28px}
.doc h2:first-of-type{margin-top:0}
.doc p,.doc li{color:var(--ink-2);font-size:.95rem}
.map-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.map-grid ul{list-style:none;padding:0;margin:0;font-size:.9rem}
.map-grid li{padding:4px 0}
.err-wrap{min-height:70vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:calc(var(--nav-h) + 40px) 0 60px}
.err-code{font-size:5.4rem;font-weight:900;letter-spacing:-4px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.js .reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none}html{scroll-behavior:auto}.gauge .arc,.gauge .needle{transition:none}}
@media (max-width:992px){
h1{font-size:2.1rem}h2{font-size:1.65rem}
.section{padding:60px 0}
.hero-grid,.dl-grid{grid-template-columns:1fr;gap:34px}
.demo{margin:0 auto}
.stats-band{grid-template-columns:repeat(2,1fr);gap:14px}
.stats-band div:nth-child(2){border-right:0}
.stats-band div:nth-child(1),.stats-band div:nth-child(2){padding-bottom:14px;border-bottom:1px solid var(--line)}
.g3,.g4{grid-template-columns:repeat(2,1fr)}
.g2{grid-template-columns:1fr}
.article-wrap{grid-template-columns:1fr;padding-top:36px}
.side{position:static}
.article{padding:24px}
.article h1{font-size:1.6rem}
.cta-band{grid-template-columns:1fr;padding:34px}
.cta-band .acts{justify-content:flex-start}
.foot-grid{grid-template-columns:1fr 1fr;gap:24px}
.news-hero{grid-template-columns:1fr}
.dl-cards,.specs,.map-grid{grid-template-columns:repeat(2,1fr)}
.nav{display:none}
.burger{display:flex}
.btn.mobile-only{display:inline-flex;width:100%;margin-top:8px}
.nav-toggle:checked ~ .nav{display:flex;position:absolute;top:var(--nav-h);left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:12px 16px 20px;box-shadow:var(--shadow-lg);gap:2px;margin:0;border-top:1px solid var(--line)}
.nav-toggle:checked ~ .nav .nav-item>summary,.nav-toggle:checked ~ .nav .nav-item>a{color:var(--ink);padding:12px 6px;border-bottom:1px solid #f0f5fa;border-radius:0;justify-content:space-between}
.nav-toggle:checked ~ .nav .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:4px 0 8px 12px;display:none}
.nav-toggle:checked ~ .nav .nav-item[open]>.dropdown{display:block}
.nav-toggle:checked ~ .nav .nav-item:hover>.dropdown{display:none}
.nav-toggle:checked ~ .nav .nav-item[open]:hover>.dropdown{display:block}
.nav-cta{display:none}
}
@media (max-width:768px){
h1{font-size:1.82rem}h2{font-size:1.45rem}
.hero{padding-top:calc(var(--nav-h) + 40px);padding-bottom:56px}
.hero-stats{grid-template-columns:1fr;gap:12px;text-align:left}
.g3,.g4,.g2,.dl-cards,.specs,.map-grid{grid-template-columns:1fr}
.price.pop{transform:none}
.card,.doc,.article{padding:20px}
.article h1{font-size:1.38rem}
.stats-band{margin-top:-30px;padding:20px}
.faq summary{font-size:.95rem;padding-right:46px}
.cta-band{padding:26px}
.page-head{padding-top:calc(var(--nav-h) + 36px)}
.pager{flex-direction:column}
.foot-grid{grid-template-columns:1fr;gap:20px}
.to-top{right:14px;bottom:16px;width:42px;height:42px}
}
@media (max-width:480px){
body{font-size:15px}
h1{font-size:1.6rem}
.container{padding:0 16px}
.btn{width:100%;padding:12px 18px}
.hero-actions{gap:10px}
.demo-shell{padding:15px}
.demo-nodes{grid-template-columns:1fr}
.news-card .body{padding:16px}
.article{padding:16px}
.article h1{font-size:1.26rem}
.comment{flex-wrap:nowrap}
.cta-band{padding:22px}
}