:root{--bg:#080d1a;--bg2:#0c1428;--card:#101a33;--card2:#15213f;--line:rgba(148,178,255,.14);--line2:rgba(45,212,167,.28);--text:#e6ecff;--muted:#93a2c8;--brand:#2dd4a7;--brand2:#22c55e;--grad:linear-gradient(135deg,#22c55e,#2dd4a7);--glow:rgba(45,212,167,.45);--radius:16px}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.7;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 56px}
.sec-tag{display:inline-block;padding:6px 16px;border:1px solid var(--line2);border-radius:999px;color:var(--brand);font-size:13px;letter-spacing:2px;margin-bottom:18px}
.sec-title{font-size:36px;font-weight:800;letter-spacing:1px;line-height:1.35}
.sec-sub{color:var(--muted);font-size:16px;margin-top:14px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border-radius:12px;font-size:16px;font-weight:700;cursor:pointer;border:1px solid transparent;transition:transform .25s,box-shadow .25s,background .25s;min-height:48px}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-solid{background:var(--grad);color:#04180f;box-shadow:0 8px 26px var(--glow)}
.btn-solid:hover{box-shadow:0 12px 34px var(--glow)}
.btn-ghost{background:transparent;border-color:rgba(148,178,255,.35);color:var(--text)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-lg{padding:17px 44px;font-size:18px;min-height:56px}
.btn-sm{padding:9px 22px;font-size:14px;min-height:40px}
.nav{position:fixed;top:0;left:0;right:0;z-index:999;background:rgba(8,13,26,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav.scrolled{background:rgba(8,13,26,.96);box-shadow:0 10px 30px rgba(0,0,0,.35)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;position:relative}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800}
.nav-logo img{width:34px;height:34px;border-radius:8px}
.nav-logo b{color:var(--brand)}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-collapse{display:flex;align-items:center;flex:1;justify-content:flex-end}
.nav-menu>li{position:relative}
.drop-label{display:flex;align-items:center;gap:6px;cursor:pointer}
.nav-menu>li>a,.drop-label>a{display:flex;align-items:center;gap:6px;padding:10px 16px;border-radius:10px;color:var(--text);font-size:15px;font-weight:600;transition:color .2s}
.nav-menu>li>a:hover,.drop-label>a:hover{color:var(--brand)}
.arrow{font-size:11px;transition:transform .25s;display:inline-block}
.drop-toggle{display:none}
.dropdown{position:absolute;top:calc(100% + 6px);left:0;min-width:196px;background:#fff;border-radius:14px;box-shadow:0 18px 44px rgba(0,0,0,.4);padding:8px;display:none;z-index:50}
.dropdown a{display:block;padding:10px 16px;border-radius:10px;color:#1b2440;font-size:14px;transition:background .2s,color .2s}
.dropdown a:hover{background:#eefaf4;color:#0ea874}
.nav-cta{margin-left:14px}
.nav-toggle{display:none}
.nav-burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:10px}
.nav-burger span{display:block;width:24px;height:2px;background:var(--text);border-radius:2px;transition:.3s}
.hero{position:relative;padding:168px 0 96px;background:radial-gradient(900px 500px at 78% -10%,rgba(45,212,167,.16),transparent 60%),radial-gradient(700px 420px at 8% 20%,rgba(34,110,255,.12),transparent 55%)}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-title{font-size:52px;font-weight:900;line-height:1.22;letter-spacing:1px}
.hero-title em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{color:var(--muted);font-size:18px;margin:22px 0 34px;max-width:520px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px;margin-top:44px;flex-wrap:wrap}
.hstat-num{font-size:32px;font-weight:900;color:var(--brand);font-variant-numeric:tabular-nums}
.hstat-label{color:var(--muted);font-size:14px;margin-top:4px}
.demo{background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:0 30px 70px rgba(0,0,0,.45),0 0 0 1px rgba(45,212,167,.08);overflow:hidden}
.demo-bar{display:flex;align-items:center;gap:8px;padding:14px 18px;border-bottom:1px solid var(--line);background:var(--bg2)}
.demo-dot{width:12px;height:12px;border-radius:50%}
.demo-bar span.title{flex:1;text-align:center;font-size:13px;color:var(--muted)}
.demo-body{padding:26px 26px 30px;text-align:center}
.gauge{position:relative;width:220px;height:220px;margin:0 auto}
.gauge svg{transform:rotate(-90deg)}
.gauge-ring-bg{fill:none;stroke:rgba(148,178,255,.12);stroke-width:14}
.gauge-ring{fill:none;stroke:url(#gaugeGrad);stroke-width:14;stroke-linecap:round;stroke-dasharray:565;stroke-dashoffset:118;transition:stroke-dashoffset 1.2s ease}
.demo-switch{display:none}
.demo-switch:checked~.demo-body .gauge-ring{stroke-dashoffset:74;animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{filter:drop-shadow(0 0 6px var(--glow))}50%{filter:drop-shadow(0 0 16px var(--glow))}}
.gauge-val{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.gauge-num{font-size:44px;font-weight:900;font-variant-numeric:tabular-nums}
.gauge-unit{color:var(--muted);font-size:14px;margin-top:2px}
.state-on{display:none}
.demo-switch:checked~.demo-body .state-on{display:inline-block}
.demo-switch:checked~.demo-body .state-off{display:none}
.demo-node{display:flex;align-items:center;justify-content:space-between;background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin-top:18px;font-size:14px}
.demo-node .flag{font-size:16px}
.demo-node .ping{color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums}
.demo-rows{display:flex;justify-content:space-around;gap:10px;margin-top:16px;flex-wrap:wrap}
.demo-cell{background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:10px 16px;font-size:13px;color:var(--muted);min-width:92px}
.demo-cell b{display:block;color:var(--text);font-size:18px;font-weight:800;margin-top:2px;font-variant-numeric:tabular-nums}
.demo-btn{width:100%;margin-top:20px}
.stats{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;text-align:center;padding:54px 0}
.stat-ico{font-size:32px}
.stat-num{font-size:40px;font-weight:900;margin:10px 0 4px;font-variant-numeric:tabular-nums;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat-label{color:var(--muted);font-size:15px}
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:transform .3s,box-shadow .3s,border-color .3s}
.feat:hover{transform:translateY(-6px);border-color:var(--line2);box-shadow:0 18px 40px rgba(0,0,0,.35)}
.feat-ico{width:52px;height:52px;border-radius:14px;background:rgba(45,212,167,.12);border:1px solid var(--line2);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px}
.feat h3{font-size:18px;margin-bottom:10px}
.feat p{color:var(--muted);font-size:14px}
.nodes{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.node-tabs{display:flex;justify-content:center;gap:10px;margin-bottom:34px;flex-wrap:wrap}
.node-tab-toggle{display:none}
.node-tab{display:inline-block;padding:10px 26px;border-radius:999px;border:1px solid var(--line);color:var(--muted);cursor:pointer;font-size:15px;font-weight:600;transition:.25s}
.node-tab-toggle:checked+.node-tab{background:var(--grad);color:#04180f;border-color:transparent;box-shadow:0 6px 20px var(--glow)}
.node-group{display:none}
#tab-asia:checked~.node-groups .group-asia{display:block}
#tab-global:checked~.node-groups .group-global{display:block}
#tab-special:checked~.node-groups .group-special{display:block}
.node-table{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.nt-row{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.6fr;gap:14px;padding:16px 22px;border-bottom:1px solid var(--line);align-items:center;font-size:14px}
.nt-row:last-child{border-bottom:none}
.nt-head{background:var(--bg2);color:var(--muted);font-size:13px;letter-spacing:1px}
.nt-city{font-weight:700}
.nt-ping{color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums}
.nt-load{color:var(--muted);font-size:13px}
.bar{height:8px;background:rgba(148,178,255,.12);border-radius:99px;overflow:hidden}
.bar-fill{height:100%;background:var(--grad);border-radius:99px}
.scenarios-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scn{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:transform .3s,box-shadow .3s,border-color .3s}
.scn:hover{transform:translateY(-6px);border-color:var(--line2);box-shadow:0 18px 40px rgba(0,0,0,.35)}
.scn-ico{font-size:34px;margin-bottom:16px;display:inline-block}
.scn h3{font-size:18px;margin-bottom:10px}
.scn p{color:var(--muted);font-size:14px}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step}
.step{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:32px 26px;transition:transform .3s,border-color .3s}
.step:hover{transform:translateY(-6px);border-color:var(--line2)}
.step-num{width:48px;height:48px;border-radius:50%;background:var(--grad);color:#04180f;font-weight:900;font-size:20px;display:flex;align-items:center;justify-content:center;margin-bottom:18px;box-shadow:0 8px 22px var(--glow)}
.step h3{font-size:18px;margin-bottom:10px}
.step p{color:var(--muted);font-size:14px}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.plan{position:relative;background:var(--card);border:1px solid var(--line);border-radius:20px;padding:36px 30px;display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s}
.plan:hover{transform:translateY(-6px)}
.plan.hot{border-color:var(--brand);background:linear-gradient(180deg,rgba(45,212,167,.1),var(--card) 46%);box-shadow:0 24px 60px rgba(0,0,0,.4),0 0 0 1px rgba(45,212,167,.35)}
.badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--grad);color:#04180f;font-size:13px;font-weight:800;padding:5px 18px;border-radius:999px;box-shadow:0 6px 18px var(--glow);white-space:nowrap}
.plan-name{font-size:17px;color:var(--muted);letter-spacing:1px}
.plan-price{margin:16px 0 6px;display:flex;align-items:baseline;gap:6px}
.plan-num{font-size:44px;font-weight:900}
.plan-num small{font-size:16px;font-weight:700;color:var(--muted)}
.plan-note{color:var(--muted);font-size:13px;margin-bottom:22px}
.plan-list{flex:1;margin-bottom:26px}
.plan-list li{padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px;display:flex;gap:10px;align-items:flex-start}
.plan-list li:last-child{border-bottom:none}
.plan-list .tick{color:var(--brand);font-weight:800}
.faq{max-width:820px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden;transition:border-color .25s}
.faq-item[open]{border-color:var(--line2)}
.faq-item summary{list-style:none;cursor:pointer;padding:20px 24px;font-size:16px;font-weight:700;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-q-ico{flex-shrink:0;width:28px;height:28px;border-radius:8px;background:rgba(45,212,167,.12);color:var(--brand);display:flex;align-items:center;justify-content:center;font-weight:900;transition:transform .3s}
.faq-item[open] .faq-q-ico{transform:rotate(45deg)}
.faq-a{padding:0 24px 22px;color:var(--muted);font-size:15px}
.faq-a ol{margin:10px 0 0;padding-left:0;list-style:none;counter-reset:fa}
.faq-a ol li{counter-increment:fa;padding:6px 0;display:flex;gap:10px}
.faq-a ol li:before{content:counter(fa);flex-shrink:0;width:22px;height:22px;border-radius:50%;background:rgba(45,212,167,.14);color:var(--brand);font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-top:2px}
.testis-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.testi{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;transition:transform .3s,border-color .3s}
.testi:hover{transform:translateY(-6px);border-color:var(--line2)}
.testi-stars{color:#f6c945;font-size:15px;letter-spacing:2px;margin-bottom:12px}
.testi-text{color:var(--text);font-size:15px;margin-bottom:18px}
.testi-user{display:flex;align-items:center;gap:12px}
.avatar{width:42px;height:42px;border-radius:50%;background:var(--grad);color:#04180f;font-weight:800;font-size:16px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.testi-name{font-size:14px;font-weight:700}
.testi-role{font-size:12px;color:var(--muted)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s,border-color .3s}
.news-card:hover{transform:translateY(-6px);border-color:var(--line2);box-shadow:0 18px 40px rgba(0,0,0,.35)}
.nc-img{aspect-ratio:16/9;overflow:hidden;background:var(--bg2)}
.nc-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.news-card:hover .nc-img img{transform:scale(1.06)}
.nc-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.nc-meta{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.nc-tag{font-size:12px;color:var(--brand);border:1px solid var(--line2);padding:2px 10px;border-radius:999px}
.nc-date{font-size:12px;color:var(--muted)}
.nc-title{font-size:16px;font-weight:700;line-height:1.5;transition:color .2s}
.news-card:hover .nc-title{color:var(--brand)}
.cta{background:radial-gradient(700px 400px at 50% 0%,rgba(45,212,167,.18),transparent 60%),var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-inner{text-align:center;padding:84px 0}
.cta-title{font-size:38px;font-weight:900;line-height:1.3}
.cta-sub{color:var(--muted);margin:16px 0 32px;font-size:16px}
.footer{background:#060a15;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding:64px 0 44px}
.f-brand .nav-logo{font-size:18px;margin-bottom:14px}
.f-brand p{color:var(--muted);font-size:14px;max-width:280px}
.f-title{font-size:15px;font-weight:800;margin-bottom:16px;letter-spacing:1px}
.f-link{display:block;color:var(--muted);font-size:14px;padding:6px 0;transition:color .2s}
.f-link:hover{color:var(--brand)}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:13px}
.footer-bottom .links{display:flex;gap:22px}
.backtop{position:fixed;right:26px;bottom:26px;width:46px;height:46px;border-radius:12px;background:var(--card);border:1px solid var(--line2);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:20px;z-index:90;opacity:0;pointer-events:none;transition:.3s}
.backtop.show{opacity:1;pointer-events:auto}
.crumb{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:14px;flex-wrap:wrap}
.crumb a:hover{color:var(--brand)}
.crumb i{font-style:normal;color:var(--muted);opacity:.6}
.page-head{padding:140px 0 54px;background:radial-gradient(700px 360px at 50% -40%,rgba(45,212,167,.14),transparent 60%)}
.page-title{font-size:40px;font-weight:900;line-height:1.3}
.page-sub{color:var(--muted);margin-top:12px;font-size:16px;max-width:640px}
.dl-hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.dl-meta{display:flex;gap:34px;margin:28px 0 34px;flex-wrap:wrap}
.dl-item b{display:block;font-size:22px;font-weight:900;font-variant-numeric:tabular-nums}
.dl-item span{color:var(--muted);font-size:13px}
.versions-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ver{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;display:flex;flex-direction:column;transition:transform .3s,border-color .3s}
.ver:hover{transform:translateY(-6px);border-color:var(--line2)}
.ver-tag{display:inline-block;align-self:flex-start;font-size:12px;color:var(--brand);border:1px solid var(--line2);padding:3px 12px;border-radius:999px;margin-bottom:14px}
.ver h3{font-size:19px;margin-bottom:6px}
.ver-size{color:var(--muted);font-size:13px;margin-bottom:18px}
.ver-list{flex:1;margin-bottom:24px}
.ver-list li{padding:7px 0;border-bottom:1px dashed var(--line);font-size:14px;display:flex;gap:10px;align-items:flex-start}
.ver-list li:last-child{border-bottom:none}
.ver-list .tick{color:var(--brand);font-weight:800}
.req-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.req{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}
.req-ico{font-size:24px;margin-bottom:10px}
.req h3{font-size:16px;margin-bottom:6px}
.req p{color:var(--muted);font-size:14px}
.article-wrap{display:grid;grid-template-columns:1fr 320px;gap:44px;align-items:start}
.article{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:40px 44px;overflow:hidden}
.article h1{font-size:30px;font-weight:900;line-height:1.4;margin-bottom:18px}
.article-meta{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:13px;padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:26px}
.article-meta span{display:flex;align-items:center;gap:6px}
.article-content p{margin-bottom:18px;font-size:15.5px;color:#c9d4ef;text-align:justify}
.article-content h2{font-size:22px;font-weight:800;margin:34px 0 16px;padding-left:14px;border-left:4px solid var(--brand);scroll-margin-top:96px}
.article-content .lead{font-size:16px;color:var(--text)}
.article-img{margin:26px 0;border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.article-img figcaption{font-size:12px;color:var(--muted);padding:10px 14px;background:var(--bg2)}
.quote{border-left:3px solid var(--brand);background:var(--bg2);padding:18px 22px;border-radius:0 12px 12px 0;margin:22px 0;color:var(--text);font-size:15px}
.quote b{color:var(--brand)}
.side{position:sticky;top:92px;display:flex;flex-direction:column;gap:22px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:0 14px 34px rgba(0,0,0,.25)}
.side-title{font-size:16px;font-weight:800;padding-left:12px;border-left:3px solid var(--brand);margin-bottom:16px}
.toc{position:relative;padding-left:18px}
.toc:before{content:"";position:absolute;left:4px;top:6px;bottom:6px;width:2px;background:rgba(148,178,255,.16)}
.toc-item{position:relative;display:block;padding:7px 0;font-size:14px;color:var(--muted);transition:color .2s}
.toc-item:before{content:"";position:absolute;left:-18px;top:14px;width:8px;height:8px;border-radius:50%;background:var(--bg);border:2px solid rgba(148,178,255,.4)}
.toc-item:hover{color:var(--brand)}
.toc-item.active{color:var(--brand);font-weight:700}
.toc-item.active:before{background:var(--brand);border-color:var(--brand);box-shadow:0 0 8px var(--glow)}
.hot-list{counter-reset:hot}
.hot-item{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line);align-items:flex-start}
.hot-item:last-child{border-bottom:none}
.hot-rank{flex-shrink:0;width:26px;height:26px;border-radius:8px;background:rgba(148,178,255,.12);color:var(--muted);font-size:13px;font-weight:800;display:flex;align-items:center;justify-content:center;transition:transform .2s}
.hot-item:nth-child(1) .hot-rank{background:var(--grad);color:#04180f}
.hot-item:nth-child(2) .hot-rank{background:linear-gradient(135deg,#ff9f43,#ffc048);color:#3a2400}
.hot-item:nth-child(3) .hot-rank{background:linear-gradient(135deg,#f6c945,#ffe08a);color:#3a2c00}
.hot-item:hover .hot-rank{transform:scale(1.15)}
.hot-item a{font-size:14px;line-height:1.5;transition:color .2s}
.hot-item:hover a{color:var(--brand)}
.tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{font-size:13px;color:var(--muted);border:1px solid var(--line);padding:6px 14px;border-radius:999px;transition:.2s}
.tag:hover{color:var(--brand);border-color:var(--brand)}
.comments{margin-top:26px}
.comments-title{font-size:18px;font-weight:800;margin-bottom:18px;padding-left:12px;border-left:3px solid var(--brand)}
.cmt{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.cmt:last-child{border-bottom:none}
.cmt-avatar{width:40px;height:40px;border-radius:50%;background:rgba(45,212,167,.14);border:1px solid var(--line2);color:var(--brand);font-weight:800;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.cmt-head{display:flex;gap:12px;align-items:baseline;flex-wrap:wrap;margin-bottom:6px}
.cmt-name{font-size:14px;font-weight:700}
.cmt-date{font-size:12px;color:var(--muted)}
.cmt-text{font-size:14px;color:#c9d4ef}
.pager{display:flex;justify-content:space-between;gap:16px;margin-top:26px;flex-wrap:wrap}
.pager a{flex:1;min-width:220px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 20px;transition:border-color .25s}
.pager a:hover{border-color:var(--line2)}
.pager .dir{font-size:12px;color:var(--muted)}
.pager .tt{font-size:14px;font-weight:700;margin-top:4px;display:block}
.pager .next{text-align:right}
.back-list{display:inline-block;margin-top:22px;color:var(--brand);font-size:14px}
.back-list:hover{text-decoration:underline}
.nf{text-align:center;padding:180px 0 110px}
.nf-code{font-size:120px;font-weight:900;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.nf-title{font-size:26px;font-weight:800;margin:22px 0 12px}
.nf-text{color:var(--muted);font-size:15px}
.nf .btn{margin-top:30px}
.countdown{color:var(--brand);font-weight:800}
.map-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.map-col{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.map-col h2{font-size:18px;margin-bottom:16px;padding-left:12px;border-left:3px solid var(--brand)}
.map-link{display:block;color:var(--muted);font-size:14px;padding:7px 0;transition:color .2s}
.map-link:hover{color:var(--brand)}
.reveal{opacity:1;transform:none}
html.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
html.js .reveal.in{opacity:1;transform:none}
@media (min-width:993px){
.has-drop:hover .dropdown{display:block}
.has-drop:hover .arrow{transform:rotate(180deg)}
.drop-toggle{display:none}
.dropdown{position:absolute;top:calc(100% + 6px);left:0;min-width:196px;background:#fff;border-radius:14px;box-shadow:0 18px 44px rgba(0,0,0,.4);padding:8px}
}
@media (max-width:992px){
.hero{padding:132px 0 76px}
.hero-inner,.dl-hero-inner{grid-template-columns:1fr;gap:44px}
.hero-title{font-size:40px}
.features-grid{grid-template-columns:repeat(2,1fr)}
.scenarios-grid,.steps-grid,.pricing-grid,.versions-grid,.req-grid,.map-grid{grid-template-columns:repeat(2,1fr)}
.news-grid,.testis-grid{grid-template-columns:repeat(2,1fr)}
.stats-grid{grid-template-columns:repeat(2,1fr);gap:26px}
.footer-grid{grid-template-columns:1fr 1fr;gap:32px}
.article-wrap{grid-template-columns:1fr}
.side{position:static}
.nav-burger{display:flex}
.nav-toggle:checked~.nav-burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle:checked~.nav-burger span:nth-child(2){opacity:0}
.nav-toggle:checked~.nav-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-collapse{position:absolute;top:72px;left:0;right:0;background:rgba(8,13,26,.98);border-bottom:1px solid var(--line);padding:14px 24px 22px;display:none;max-height:calc(100vh - 72px);overflow-y:auto}
.nav-toggle:checked~.nav-collapse{display:block}
.nav-menu{flex-direction:column;align-items:stretch;gap:4px}
.nav-menu>li>a,.drop-label>a{padding:13px 14px;font-size:16px}
.dropdown{position:static;background:var(--bg2);box-shadow:none;border:1px solid var(--line);margin:6px 0 10px 14px}
.dropdown a{color:var(--text);padding:11px 16px}
.dropdown a:hover{background:rgba(45,212,167,.1)}
.drop-toggle:checked~.dropdown{display:block}
.drop-toggle:checked~.drop-label .arrow{transform:rotate(180deg)}
.nav-cta{margin:10px 0 0}
}
@media (max-width:768px){
.section{padding:64px 0}
.sec-title{font-size:28px}
.hero-title{font-size:32px}
.hero-sub{font-size:16px}
.page-title{font-size:30px}
.article{padding:26px 22px}
.article h1{font-size:24px}
.article-content h2{font-size:19px}
.article-content p{font-size:14.5px}
.gauge{width:190px;height:190px}
.nt-row{grid-template-columns:1.2fr 1fr 1fr;padding:14px 16px;font-size:13px}
.nt-row .nt-load-col{display:none}
.nt-head{font-size:12px}
.pricing-grid{grid-template-columns:1fr}
.plan.hot{transform:none}
.plan:hover{transform:none}
.features-grid{grid-template-columns:1fr 1fr;gap:16px}
.footer-bottom{flex-direction:column;text-align:center}
}
@media (max-width:480px){
.container{padding:0 16px}
.hero{padding:116px 0 60px}
.hero-title{font-size:27px}
.hero-actions .btn{width:100%}
.hero-stats{gap:22px}
.hstat-num{font-size:26px}
.features-grid,.scenarios-grid,.steps-grid,.news-grid,.testis-grid,.versions-grid,.req-grid,.map-grid,.footer-grid{grid-template-columns:1fr}
.stats-grid{grid-template-columns:1fr 1fr;gap:20px;padding:40px 0}
.stat-num{font-size:30px}
.sec-title{font-size:24px}
.nt-row{grid-template-columns:1.1fr 1fr;gap:10px}
.nt-row .nt-speed-col{display:none}
.demo-body{padding:20px 16px 24px}
.demo-cell{min-width:76px;padding:8px 10px}
.btn-lg{width:100%}
.cta-title{font-size:26px}
.footer-grid{padding:48px 0 32px}
}
.demo-nodes{margin-top:16px}
.node-sel{display:none}
.node-chips{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.node-chip{padding:8px 16px;border-radius:999px;border:1px solid var(--line);font-size:13px;cursor:pointer;color:var(--muted);transition:.2s;min-height:38px;display:inline-flex;align-items:center}
#node-sg:checked~.node-chips label[for="node-sg"],#node-jp:checked~.node-chips label[for="node-jp"],#node-us:checked~.node-chips label[for="node-us"]{border-color:var(--brand);color:var(--brand);background:rgba(45,212,167,.1)}
.node-info{display:none;margin-top:12px;font-size:14px;background:var(--bg2);border:1px solid var(--line);border-radius:12px;padding:10px 14px}
.node-info b{color:var(--brand);font-variant-numeric:tabular-nums}
#node-sg:checked~.info-sg{display:block}
#node-jp:checked~.info-jp{display:block}
#node-us:checked~.info-us{display:block}
.nc-desc{color:var(--muted);font-size:13.5px;margin-top:8px;line-height:1.6}
.article-footer-tags{margin-top:26px;display:flex;gap:10px;flex-wrap:wrap}
/* 条款/政策页 */
.legal{max-width:920px;margin:0 auto}
.legal .article h2{font-size:22px;font-weight:800;margin:34px 0 16px;padding-left:14px;border-left:4px solid var(--brand)}
.legal .article p{margin-bottom:18px;font-size:15.5px;color:#c9d4ef;text-align:justify}
.legal .article ul{margin:0 0 18px 4px;padding-left:0;list-style:none}
.legal .article ul li{position:relative;padding:7px 0 7px 26px;color:#c9d4ef;font-size:15px}
.legal .article ul li:before{content:"";position:absolute;left:4px;top:15px;width:8px;height:8px;border-radius:50%;background:var(--grad)}
.legal .article ul li b{color:var(--text)}
.legal-contact{margin-top:26px;background:var(--bg2);border:1px solid var(--line);border-radius:14px;padding:20px 24px;font-size:15px;color:var(--text)}
.legal-contact b{color:var(--brand)}
/* 网站地图 */
.sitemap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1080px;margin:0 auto}
.sitemap-col{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px 28px;box-shadow:0 14px 34px rgba(0,0,0,.25)}
.sitemap-col h2{font-size:17px;font-weight:800;padding-left:12px;border-left:3px solid var(--brand);margin-bottom:14px}
.sitemap-col a{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:11px 2px;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--muted);transition:color .2s}
.sitemap-col a:last-child{border-bottom:none}
.sitemap-col a:hover{color:var(--brand)}
.sitemap-col a i{font-style:normal;font-size:12px;color:var(--muted);opacity:.55}
@media (max-width:860px){.sitemap-grid{grid-template-columns:1fr}.legal .article h2{font-size:19px}.legal .article p{font-size:14.5px}}