:root{--bg:#0B0F1E;--bg2:#101832;--card:#141D38;--card2:#182244;--line:rgba(126,150,206,.18);--c1:#00E5C7;--c2:#FF4D6D;--c3:#22C1FF;--txt:#F2F5FB;--txt2:#9AA6C4;--grad:linear-gradient(135deg,#00E5C7,#22C1FF 42%,#FF4D6D);--grad2:linear-gradient(135deg,rgba(0,229,199,.16),rgba(255,77,109,.16));--r:20px;--sh:0 20px 50px rgba(2,6,18,.5)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--txt);line-height:1.75;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0;position:relative}
.sec-tag{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--c1);background:rgba(0,229,199,.1);border:1px solid rgba(0,229,199,.35);border-radius:999px;padding:6px 18px;margin-bottom:18px}
.sec-title{font-size:clamp(26px,4vw,42px);font-weight:800;letter-spacing:.5px;line-height:1.25;margin-bottom:14px}
.sec-title .gr{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sec-desc{color:var(--txt2);font-size:16px;max-width:720px;margin:0 auto 44px}
.center{text-align:center}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:14px;font-weight:700;font-size:16px;padding:15px 32px;transition:transform .25s,box-shadow .25s;cursor:pointer;border:0}
.btn:active{transform:scale(.96)}
.btn-grad{background:var(--grad);color:#fff;box-shadow:0 12px 30px rgba(255,77,109,.35)}
.btn-grad:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(0,229,199,.3),0 12px 30px rgba(255,77,109,.4)}
.btn-ghost{border:2px solid var(--line);color:var(--txt);background:rgba(255,255,255,.03)}
.btn-ghost:hover{transform:translateY(-3px);border-color:var(--c1);color:var(--c1);box-shadow:0 12px 28px rgba(0,229,199,.15)}
.nav-wrap{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(11,15,30,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:background .3s,border-color .3s}
html.js .nav-wrap.scrolled{background:rgba(9,12,26,.92);border-color:var(--line)}
.nav{display:flex;align-items:center;height:72px;gap:10px}
.brand{display:flex;align-items:center;gap:10px;margin-right:22px;font-size:19px;font-weight:800;letter-spacing:.5px}
.brand img{width:40px;height:40px;border-radius:12px}
.brand .bd{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav-menu{display:flex;align-items:center;flex:1;gap:4px}
.nav-link{display:flex;align-items:center;gap:6px;padding:10px 16px;border-radius:12px;font-size:15px;font-weight:600;color:var(--txt2);transition:color .2s,background .2s}
.nav-link:hover,.nav-group>summary:hover{color:var(--txt);background:rgba(255,255,255,.05)}
.nav-group{position:relative}
.nav-group>summary{list-style:none;display:flex;align-items:center;gap:6px;padding:10px 16px;border-radius:12px;font-size:15px;font-weight:600;color:var(--txt2);cursor:pointer;transition:color .2s,background .2s}
.nav-group>summary::-webkit-details-marker{display:none}
.nav-group>summary .arr{transition:transform .25s}
.nav-group[open]>summary .arr{transform:rotate(180deg)}
.dropdown{position:absolute;top:calc(100% + 10px);left:0;min-width:230px;background:#101830;border:1px solid var(--line);border-radius:16px;box-shadow:var(--sh);padding:10px;z-index:60}
.dropdown a{display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:12px;font-size:14px;color:var(--txt2);transition:all .2s}
.dropdown a:hover{background:var(--grad2);color:var(--txt);transform:translateX(3px)}
.dropdown .dd-ic{font-size:17px}
.dropdown .dd-t{font-weight:600}
.dropdown .dd-s{display:block;font-size:12px;color:var(--txt2)}
.nav-cta{margin-left:auto;padding:11px 24px;font-size:15px}
.nav-toggle{display:none}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);cursor:pointer;position:relative;margin-left:auto}
.hamburger span,.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:11px;right:11px;height:2px;border-radius:2px;background:var(--txt);transition:all .3s}
.hamburger span{top:21px}
.hamburger span::before{left:0;right:0;top:-7px}
.hamburger span::after{left:0;right:0;top:7px}
.nav-toggle:checked~.hamburger span{background:transparent}
.nav-toggle:checked~.hamburger span::before{transform:translateY(7px) rotate(45deg)}
.nav-toggle:checked~.hamburger span::after{transform:translateY(-7px) rotate(-45deg)}
.nav-toggle:checked~.nav-menu{display:flex}
.hero{padding:170px 0 90px;position:relative;overflow:hidden}
.hero-bg{position:absolute;inset:0;pointer-events:none}
.hero-bg .blob{position:absolute;border-radius:50%;filter:blur(110px);opacity:.4}
.hero-bg .b1{width:520px;height:520px;background:rgba(0,229,199,.35);top:-160px;left:-120px}
.hero-bg .b2{width:560px;height:560px;background:rgba(255,77,109,.3);bottom:-200px;right:-140px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative}
.hero h1{font-size:clamp(34px,4.6vw,56px);font-weight:800;line-height:1.18;letter-spacing:.5px;margin-bottom:20px}
.hero h1 .gr{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{color:var(--txt2);font-size:18px;max-width:520px;margin-bottom:32px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:38px}
.hero-stats{display:flex;gap:34px;flex-wrap:wrap}
.hstat .num{font-size:32px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}
.hstat .lb{font-size:13px;color:var(--txt2)}
.demo{background:linear-gradient(160deg,#141E3A,#0F1730);border:1px solid var(--line);border-radius:26px;padding:26px;box-shadow:var(--sh);position:relative}
.demo::before{content:"";position:absolute;inset:-1px;border-radius:27px;padding:1px;background:var(--grad);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:.55;pointer-events:none}
.demo-head{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.demo-head .dlg{width:34px;height:34px;border-radius:10px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:17px}
.demo-head .dn{font-weight:800}
.demo-status{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:600;padding:5px 13px;border-radius:999px;background:rgba(255,77,109,.14);color:#FF8FA5;border:1px solid rgba(255,77,109,.35)}
.demo-status .dot{width:8px;height:8px;border-radius:50%;background:currentColor;animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
.demo-gauge{text-align:center;padding:8px 0 4px;position:relative}
.demo-gauge svg{width:230px;height:130px;display:block;margin:0 auto}
.gauge-needle{transform-origin:115px 112px;transform:rotate(-78deg);transition:transform 1s cubic-bezier(.2,.9,.3,1.2)}
#demo-power:checked~.demo-gauge .gauge-needle{transform:rotate(66deg)}
.demo-gauge .g2{stroke-dashoffset:298;transition:stroke-dashoffset 1.1s ease}
#demo-power:checked~.demo-gauge .g2{stroke-dashoffset:55}
.gauge-read{font-size:40px;font-weight:800;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin-top:-6px}
.gauge-read small{font-size:15px;font-weight:600}
.gauge-sub{color:var(--txt2);font-size:13px;margin-top:4px}
.r-on{display:none}
#demo-power:checked~.demo-gauge .r-off{display:none}
#demo-power:checked~.demo-gauge .r-on{display:inline}
.demo-btn{display:flex;align-items:center;justify-content:center;gap:9px;width:100%;margin:20px 0 18px;padding:16px;border-radius:16px;background:var(--grad);color:#fff;font-size:17px;font-weight:800;cursor:pointer;box-shadow:0 14px 34px rgba(255,77,109,.38);transition:transform .25s}
.demo-btn:hover{transform:translateY(-2px)}
.demo-btn:active{transform:scale(.97)}
.demo-btn .tx-on{display:none}
#demo-power:checked~.demo-btn{background:rgba(255,77,109,.14);color:#FF8FA5;border:1px solid rgba(255,77,109,.4);box-shadow:none}
#demo-power:checked~.demo-btn .tx-off{display:none}
#demo-power:checked~.demo-btn .tx-on{display:inline}
#demo-power:checked~.demo-status{background:rgba(0,229,199,.14);color:var(--c1);border-color:rgba(0,229,199,.35)}
#demo-power:checked~.demo-status .st-off{display:none}
#demo-power:checked~.demo-status .st-on{display:inline}
.demo-status .st-on{display:none}
.demo-nodes{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:16px}
.demo-node{position:relative}
.demo-node input{position:absolute;opacity:0;pointer-events:none}
.demo-node label{display:block;text-align:center;padding:11px 6px;border-radius:13px;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--txt2);cursor:pointer;transition:all .2s}
.demo-node input:checked+label{background:var(--grad2);border-color:var(--c1);color:var(--c1);box-shadow:0 8px 20px rgba(0,229,199,.18)}
.demo-datas{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:14px;padding:13px 16px;font-size:13px}
.demo-datas .nd{display:none}
#dn1:checked~.demo-datas .nd-1{display:flex}
#dn2:checked~.demo-datas .nd-2{display:flex}
#dn3:checked~.demo-datas .nd-3{display:flex}
.demo-datas .nd{justify-content:space-between;gap:8px;flex-wrap:wrap}
.demo-datas .k{color:var(--txt2)}
.demo-datas .v{font-weight:700;color:var(--c1)}
.demo-toggles{display:flex;gap:10px;margin-top:14px}
.demo-tog{flex:1;position:relative}
.demo-tog input{position:absolute;opacity:0;pointer-events:none}
.demo-tog label{display:flex;align-items:center;justify-content:center;gap:8px;padding:11px 8px;border-radius:13px;border:1px solid var(--line);font-size:13px;font-weight:600;color:var(--txt2);cursor:pointer;transition:all .2s}
.demo-tog input:checked+label{background:var(--grad2);border-color:var(--c2);color:#FF8FA5}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:32px 26px;text-align:center;transition:transform .3s,box-shadow .3s,border-color .3s}
.stat-card:hover{transform:translateY(-6px);box-shadow:0 22px 46px rgba(0,0,0,.4);border-color:rgba(0,229,199,.4)}
.stat-card .ic{font-size:34px;margin-bottom:12px}
.stat-card .num{font-size:36px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}
.stat-card .lb{color:var(--txt2);font-size:14px;margin-top:4px}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:30px 26px;transition:transform .3s,box-shadow .3s,border-color .3s;position:relative;overflow:hidden}
.feat-card::after{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);opacity:0;transition:opacity .3s}
.feat-card:hover{transform:translateY(-6px);box-shadow:0 22px 46px rgba(0,0,0,.4);border-color:rgba(255,77,109,.4)}
.feat-card:hover::after{opacity:1}
.feat-ic{width:56px;height:56px;border-radius:16px;background:var(--grad2);display:flex;align-items:center;justify-content:center;font-size:26px;margin:0 auto 18px;border:1px solid var(--line)}
.feat-card h3{font-size:19px;font-weight:700;margin-bottom:10px}
.feat-card p{color:var(--txt2);font-size:14.5px}
.node-wrap{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:stretch}
.node-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:30px;position:relative;overflow:hidden}
.node-panel::before{content:"";position:absolute;width:300px;height:300px;border-radius:50%;filter:blur(90px);opacity:.25;top:-120px;right:-100px;background:var(--c1)}
.node-panel h3{font-size:20px;font-weight:700;margin-bottom:6px}
.node-panel .sub{color:var(--txt2);font-size:14px;margin-bottom:20px}
.node-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.node-item{display:flex;align-items:center;gap:11px;padding:13px 15px;border-radius:14px;background:rgba(255,255,255,.03);border:1px solid var(--line);transition:all .25s}
.node-item:hover{border-color:var(--c1);transform:translateX(4px)}
.node-item .flag{font-size:22px}
.node-item .nm{font-weight:600;font-size:14.5px}
.node-item .ms{font-size:12px;color:var(--txt2)}
.node-item .ping{margin-left:auto;font-size:13px;font-weight:700;color:var(--c1)}
.speed-table{width:100%;border-collapse:collapse;font-size:14px}
.speed-table th{color:var(--txt2);font-weight:600;text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);font-size:13px}
.speed-table td{padding:12px;border-bottom:1px solid rgba(126,150,206,.08)}
.speed-table tr:hover td{background:rgba(255,255,255,.03)}
.speed-table .up{color:var(--c1);font-weight:700}
.speed-table .warn{color:#FFB648;font-weight:700}
.badge-pill{display:inline-block;font-size:12px;font-weight:700;padding:3px 12px;border-radius:999px;background:rgba(0,229,199,.12);color:var(--c1);border:1px solid rgba(0,229,199,.3)}
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scen-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px 24px;transition:transform .3s,box-shadow .3s}
.scen-card:hover{transform:translateY(-6px);box-shadow:0 22px 46px rgba(0,0,0,.4)}
.scen-card .ic{font-size:34px;margin-bottom:14px}
.scen-card h3{font-size:18px;font-weight:700;margin-bottom:9px}
.scen-card p{color:var(--txt2);font-size:14px}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step}
.step-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:32px 26px;position:relative;transition:transform .3s,box-shadow .3s}
.step-card:hover{transform:translateY(-6px);box-shadow:0 22px 46px rgba(0,0,0,.4)}
.step-card::before{counter-increment:step;content:"0" counter(step);position:absolute;top:22px;right:26px;font-size:46px;font-weight:800;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;opacity:.75}
.step-card .ic{font-size:30px;margin-bottom:14px}
.step-card h3{font-size:18px;font-weight:700;margin-bottom:9px}
.step-card p{color:var(--txt2);font-size:14px}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.price-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:34px 28px;display:flex;flex-direction:column;position:relative;transition:transform .3s,box-shadow .3s}
.price-card:hover{transform:translateY(-6px);box-shadow:0 22px 46px rgba(0,0,0,.4)}
.price-card.hot{background:linear-gradient(170deg,#182449,#121A35);border-color:transparent;box-shadow:0 0 0 2px transparent,0 24px 60px rgba(255,77,109,.25)}
.price-card.hot::before{content:"";position:absolute;inset:0;border-radius:var(--r);padding:2px;background:var(--grad);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.hot-flag{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12px;font-weight:800;padding:5px 18px;border-radius:999px;letter-spacing:1px;white-space:nowrap}
.price-card .pn{font-size:17px;font-weight:700;margin-bottom:4px}
.price-card .pd{color:var(--txt2);font-size:13px;margin-bottom:20px}
.price-card .pr{font-size:44px;font-weight:800;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.price-card .pr small{font-size:15px;font-weight:600}
.price-card ul{flex:1;margin:22px 0 26px;display:flex;flex-direction:column;gap:12px}
.price-card li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--txt2)}
.price-card li::before{content:"✓";color:var(--c1);font-weight:800;flex-shrink:0}
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:border-color .25s}
.faq-item[open]{border-color:rgba(0,229,199,.45)}
.faq-item summary{list-style:none;display:flex;align-items:center;gap:14px;padding:20px 24px;font-weight:700;font-size:16px;cursor:pointer}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .fi{width:30px;height:30px;border-radius:10px;background:var(--grad2);display:flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0}
.faq-item summary .fx{margin-left:auto;width:22px;height:22px;border-radius:50%;border:1px solid var(--line);position:relative;flex-shrink:0;transition:transform .3s,border-color .3s}
.faq-item summary .fx::before,.faq-item summary .fx::after{content:"";position:absolute;background:var(--c1);left:50%;top:50%;transform:translate(-50%,-50%)}
.faq-item summary .fx::before{width:10px;height:2px}
.faq-item summary .fx::after{width:2px;height:10px;transition:opacity .25s}
.faq-item[open] summary .fx{transform:rotate(180deg);border-color:var(--c1)}
.faq-item[open] summary .fx::after{opacity:0}
.faq-item .faq-a{padding:0 24px 22px;color:var(--txt2);font-size:15px}
.faq-item .faq-a ol{margin:0 0 0 18px;padding:0}
.faq-item .faq-a li{margin-bottom:7px}
.faq-item .faq-a li b{color:var(--txt);font-weight:700}
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.testi-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px 24px;transition:transform .3s,box-shadow .3s}
.testi-card:hover{transform:translateY(-6px);box-shadow:0 22px 46px rgba(0,0,0,.4)}
.testi-card .stars{color:#FFB648;font-size:15px;letter-spacing:2px;margin-bottom:12px}
.testi-card p{color:var(--txt2);font-size:14.5px;margin-bottom:18px}
.testi-user{display:flex;align-items:center;gap:12px}
.testi-user .av{width:42px;height:42px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:17px;flex-shrink:0}
.testi-user .nm{font-weight:700;font-size:14.5px}
.testi-user .tg{font-size:12px;color:var(--txt2)}
.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(--r);overflow:hidden;transition:transform .3s,box-shadow .3s,border-color .3s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);box-shadow:0 22px 46px rgba(0,0,0,.4);border-color:rgba(255,77,109,.4)}
.news-card .thumb{overflow:hidden;position:relative}
.news-card .thumb img{width:100%;height:200px;object-fit:cover;transition:transform .5s}
.news-card:hover .thumb img{transform:scale(1.07)}
.news-card .thumb .tag{position:absolute;left:14px;top:14px;background:rgba(11,15,30,.82);backdrop-filter:blur(6px);color:var(--c1);font-size:12px;font-weight:700;padding:5px 13px;border-radius:999px;border:1px solid rgba(0,229,199,.35)}
.news-card .nc-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.news-card .date{font-size:12.5px;color:var(--txt2);margin-bottom:9px}
.news-card h3{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:10px;transition:color .2s}
.news-card:hover h3{color:var(--c1)}
.news-card .desc{color:var(--txt2);font-size:14px;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px}
.news-card .more{font-size:14px;font-weight:700;color:var(--c1)}
.cta-band{background:linear-gradient(120deg,rgba(0,229,199,.14),rgba(34,193,255,.12),rgba(255,77,109,.14));border:1px solid var(--line);border-radius:28px;padding:64px 40px;text-align:center;position:relative;overflow:hidden}
.cta-band h2{font-size:clamp(26px,3.6vw,38px);font-weight:800;margin-bottom:14px}
.cta-band p{color:var(--txt2);max-width:560px;margin:0 auto 30px}
.footer{background:var(--bg2);border-top:1px solid var(--line);padding:64px 0 0;margin-top:90px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer .f-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;margin-bottom:14px}
.footer .f-brand img{width:38px;height:38px;border-radius:11px}
.footer .f-desc{color:var(--txt2);font-size:14px;max-width:280px}
.footer h4{font-size:15px;font-weight:700;margin-bottom:18px}
.footer ul{display:flex;flex-direction:column;gap:11px}
.footer ul a{color:var(--txt2);font-size:14px;transition:color .2s}
.footer ul a:hover{color:var(--c1)}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13.5px;color:var(--txt2)}
.footer-bottom .fl{display:flex;gap:22px}
.footer-bottom a:hover{color:var(--c1)}
.to-top{position:fixed;right:26px;bottom:26px;width:48px;height:48px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;box-shadow:0 12px 30px rgba(255,77,109,.4);opacity:0;visibility:hidden;transform:translateY(14px);transition:all .3s;z-index:90}
html.js .to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{transform:translateY(-4px)!important}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--txt2);flex-wrap:wrap;margin-bottom:8px}
.breadcrumb a:hover{color:var(--c1)}
.breadcrumb .sep{opacity:.5}
.page-hero{padding:150px 0 60px;position:relative;overflow:hidden}
.page-hero .ph-tag{display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;color:var(--c1);background:rgba(0,229,199,.1);border:1px solid rgba(0,229,199,.35);border-radius:999px;padding:6px 18px;margin-bottom:16px}
.page-hero h1{font-size:clamp(30px,4vw,46px);font-weight:800;margin-bottom:14px}
.page-hero h1 .gr{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.page-hero .sub{color:var(--txt2);font-size:17px;max-width:680px}
.dl-hero{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.dl-meta{display:flex;gap:30px;flex-wrap:wrap;margin-top:28px}
.dl-meta .m-item .mv{font-size:24px;font-weight:800;color:var(--c1)}
.dl-meta .m-item .ml{font-size:13px;color:var(--txt2)}
.ver-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.ver-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px 22px;display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s,border-color .3s}
.ver-card:hover{transform:translateY(-6px);box-shadow:0 22px 46px rgba(0,0,0,.4);border-color:rgba(0,229,199,.4)}
.ver-card .v-ic{font-size:36px;margin-bottom:14px}
.ver-card .v-nm{font-weight:800;font-size:18px}
.ver-card .v-ver{font-size:12.5px;color:var(--c1);margin:3px 0 10px}
.ver-card ul{flex:1;margin:8px 0 20px;display:flex;flex-direction:column;gap:9px}
.ver-card li{display:flex;gap:9px;align-items:flex-start;font-size:13.5px;color:var(--txt2)}
.ver-card li::before{content:"✓";color:var(--c1);font-weight:800;flex-shrink:0}
.ver-card .btn{width:100%;padding:13px;font-size:15px}
.req-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.req-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;display:flex;gap:15px;align-items:flex-start;transition:transform .3s,border-color .3s}
.req-card:hover{transform:translateY(-5px);border-color:rgba(255,77,109,.4)}
.req-card .ic{font-size:26px;flex-shrink:0;width:48px;height:48px;border-radius:14px;background:var(--grad2);display:flex;align-items:center;justify-content:center}
.req-card h3{font-size:15.5px;font-weight:700;margin-bottom:4px}
.req-card p{font-size:13.5px;color:var(--txt2)}
.install-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.inst-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px 22px;text-align:center;transition:transform .3s,box-shadow .3s}
.inst-card:hover{transform:translateY(-6px);box-shadow:0 22px 46px rgba(0,0,0,.4)}
.inst-card .ic{font-size:38px;margin-bottom:12px}
.inst-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.inst-card p{font-size:13.5px;color:var(--txt2)}
.article-wrap{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start}
.article{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:40px 44px;overflow:hidden}
.article .a-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--txt2);margin-bottom:22px}
.article .a-meta .badge{background:var(--grad2);border:1px solid var(--c1);color:var(--c1);padding:4px 14px;border-radius:999px;font-weight:700}
.article .a-author{display:flex;align-items:center;gap:10px}
.article .a-author .av{width:36px;height:36px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;flex-shrink:0}
.article h1{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.4;margin-bottom:20px}
.article .a-cover{border-radius:18px;overflow:hidden;margin:8px 0 26px}
.article .a-cover img{width:100%;height:auto}
.article .lead{font-size:16.5px;color:var(--txt);border-left:4px solid;border-image:var(--grad) 1;background:var(--grad2);border-radius:0 14px 14px 0;padding:18px 22px;margin-bottom:26px}
.article h2{font-size:22px;font-weight:800;margin:34px 0 16px;padding-left:14px;border-left:4px solid;border-image:var(--grad) 1;scroll-margin-top:90px}
.article p{color:var(--txt2);font-size:15.5px;margin-bottom:18px}
.article .a-fig{margin:20px 0 26px;border-radius:16px;overflow:hidden}
.article .a-fig img{width:100%;height:auto}
.article .a-fig figcaption{font-size:12.5px;color:var(--txt2);padding:9px 14px;background:rgba(255,255,255,.03)}
.article .quote{background:var(--grad2);border:1px solid var(--line);border-radius:16px;padding:20px 24px;margin:20px 0;font-size:15px;color:var(--txt)}
.article .quote b{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.article .data-block{background:linear-gradient(160deg,#16224a,#121a36);border:1px solid var(--line);border-radius:18px;padding:24px 28px;margin:22px 0}
.article .data-block h3{font-size:15px;font-weight:700;margin-bottom:14px;color:var(--c1)}
.article .data-block ul{display:grid;grid-template-columns:1fr 1fr;gap:12px 24px}
.article .data-block li{font-size:14.5px;color:var(--txt2);display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed rgba(126,150,206,.2);padding-bottom:8px}
.article .data-block li b{color:var(--txt)}
.article .a-end{border-top:1px solid var(--line);margin-top:34px;padding-top:24px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:14px;color:var(--txt2)}
.article .a-end a{color:var(--c1);font-weight:700}
.article-pager{display:flex;justify-content:space-between;gap:14px;margin-top:22px;flex-wrap:wrap}
.pager-card{flex:1;min-width:240px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px 22px;transition:border-color .25s,transform .25s;display:block}
.pager-card:hover{border-color:var(--c1);transform:translateY(-3px)}
.pager-card .pk{font-size:12px;color:var(--txt2);margin-bottom:6px}
.pager-card .pt{font-weight:700;font-size:14.5px}
.pager-card.next{text-align:right}
.sidebar{position:sticky;top:92px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:var(--sh)}
.side-card h3{font-size:15px;font-weight:800;padding-left:12px;border-left:4px solid;border-image:var(--grad) 1;margin-bottom:16px}
.toc-list{position:relative;padding-left:18px}
.toc-list::before{content:"";position:absolute;left:5px;top:4px;bottom:4px;width:2px;background:var(--line)}
.toc-list a{display:block;position:relative;padding:8px 0 8px 16px;font-size:13.5px;color:var(--txt2);transition:color .2s}
.toc-list a::before{content:"";position:absolute;left:-16px;top:50%;transform:translateY(-50%);width:9px;height:9px;border-radius:50%;background:var(--bg);border:2px solid var(--txt2);transition:all .2s}
.toc-list a:hover{color:var(--c1)}
html.js .toc-list a.active{color:var(--c1);font-weight:700}
html.js .toc-list a.active::before{background:var(--c1);border-color:var(--c1)}
.hot-list{display:flex;flex-direction:column;gap:12px}
.hot-item{display:flex;gap:12px;align-items:flex-start}
.hot-item .rank{width:26px;height:26px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;flex-shrink:0;color:#fff;background:#4a5879;transition:transform .2s}
.hot-item:hover .rank{transform:scale(1.15)}
.hot-item:nth-child(1) .rank{background:var(--grad)}
.hot-item:nth-child(2) .rank{background:linear-gradient(135deg,#FF9A3D,#FF6A00)}
.hot-item:nth-child(3) .rank{background:linear-gradient(135deg,#FFD76E,#E8A400)}
.hot-item .ht{font-size:13.5px;line-height:1.5;color:var(--txt2);transition:color .2s;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hot-item:hover .ht{color:var(--c1)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud a{font-size:12.5px;font-weight:600;color:var(--txt2);border:1px solid var(--line);border-radius:999px;padding:6px 14px;transition:all .2s}
.tag-cloud a:hover{color:var(--c1);border-color:var(--c1);background:rgba(0,229,199,.08)}
.comment-list{display:flex;flex-direction:column;gap:18px;margin-top:24px}
.comment-item{display:flex;gap:14px;padding-bottom:18px;border-bottom:1px solid rgba(126,150,206,.1)}
.comment-item:last-child{border-bottom:0}
.comment-item .av{width:42px;height:42px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;flex-shrink:0;font-size:16px}
.comment-item .c-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:5px}
.comment-item .c-nm{font-weight:700;font-size:14px}
.comment-item .c-date{font-size:12px;color:var(--txt2)}
.comment-item p{font-size:14px;color:var(--txt2)}
.news-page-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sitemap-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sm-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px;transition:transform .3s,border-color .3s}
.sm-card:hover{transform:translateY(-5px);border-color:rgba(0,229,199,.4)}
.sm-card h3{font-size:17px;font-weight:800;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.sm-card ul{display:flex;flex-direction:column;gap:10px}
.sm-card li a{display:flex;align-items:center;gap:9px;color:var(--txt2);font-size:14.5px;padding:7px 10px;border-radius:10px;transition:all .2s}
.sm-card li a:hover{color:var(--c1);background:rgba(255,255,255,.04)}
.sm-card li .u{font-size:12px;color:var(--txt2);opacity:.65;display:block}
.err-page{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:140px 24px 60px}
.err-page .e-code{font-size:clamp(80px,16vw,150px);font-weight:800;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.err-page h1{font-size:26px;margin:16px 0 12px}
.err-page p{color:var(--txt2);margin-bottom:28px}
.err-page .cd{font-size:13px;color:var(--txt2);margin-top:22px}
.err-page .cd b{color:var(--c1)}
html.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
html.js .reveal.in{opacity:1;transform:none}
html.js .reveal.d1{transition-delay:.08s}
html.js .reveal.d2{transition-delay:.16s}
html.js .reveal.d3{transition-delay:.24s}
html.js .reveal.d4{transition-delay:.32s}
@media(max-width:992px){.hero-grid,.dl-hero,.node-wrap,.article-wrap{grid-template-columns:1fr}
.hero{padding:140px 0 70px}
.hamburger{display:block}
.nav-menu{display:none;position:absolute;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;background:#0e1530;border-bottom:1px solid var(--line);padding:16px 20px 24px;gap:8px;max-height:calc(100vh - 72px);overflow-y:auto}
.nav-link,.nav-group>summary{padding:14px 16px;font-size:16px;width:100%}
.nav-cta{margin-left:0;width:100%;justify-content:center}
.dropdown{position:static;box-shadow:none;min-width:0;background:rgba(255,255,255,.03);border:0;border-left:2px solid var(--line);margin:6px 0 6px 14px;border-radius:12px}
.nav-group{width:100%}
.stats-grid{grid-template-columns:repeat(2,1fr)}
.feat-grid,.scenario-grid{grid-template-columns:repeat(2,1fr)}
.steps-grid{grid-template-columns:1fr;max-width:560px;margin:0 auto}
.price-grid{grid-template-columns:1fr;max-width:460px;margin:0 auto}
.testi-grid,.news-grid,.news-page-grid{grid-template-columns:repeat(2,1fr)}
.ver-grid{grid-template-columns:repeat(2,1fr)}
.req-grid{grid-template-columns:repeat(2,1fr)}
.install-steps{grid-template-columns:repeat(2,1fr)}
.sidebar{position:static}
.footer-grid{grid-template-columns:1fr 1fr}
.sitemap-cols{grid-template-columns:1fr 1fr}
.node-list{grid-template-columns:1fr}
.article{padding:30px 26px}
.article .data-block ul{grid-template-columns:1fr}}
@media(max-width:768px){.section{padding:64px 0}
.hero{padding:126px 0 60px}
.feat-grid,.scenario-grid,.testi-grid,.news-grid,.news-page-grid,.req-grid,.install-steps,.ver-grid,.footer-grid,.sitemap-cols{grid-template-columns:1fr}
.stats-grid{grid-template-columns:repeat(2,1fr);gap:14px}
.stat-card{padding:24px 16px}
.hero-btns{flex-direction:column;align-items:stretch}
.hero-btns .btn{width:100%}
.hero-stats{gap:22px}
.node-list{grid-template-columns:1fr 1fr}
.cta-band{padding:48px 24px}
.demo{padding:20px}
.demo-gauge svg{width:200px;height:114px}
.article{padding:24px 20px}
.article h1{font-size:24px}
.article p{font-size:15px}
.article .data-block{padding:18px 16px}}
@media(max-width:480px){.container{padding:0 18px}
.hero h1{font-size:32px}
.hero .sub{font-size:16px}
.hstat .num{font-size:26px}
.sec-title{font-size:26px}
.stats-grid{grid-template-columns:1fr 1fr}
.node-list{grid-template-columns:1fr}
.demo-nodes{grid-template-columns:repeat(3,1fr);gap:7px}
.demo-node label{font-size:12px;padding:10px 4px}
.demo-toggles{flex-direction:column}
.price-card .pr{font-size:38px}
.footer-grid{grid-template-columns:1fr}
.footer-bottom{flex-direction:column;align-items:flex-start}
.breadcrumb{font-size:12.5px}
.dl-meta{gap:20px}
.dl-meta .m-item .mv{font-size:20px}}