*{margin:0;padding:0;box-sizing:border-box}
:root{--brand:#00b289;--brand2:#00a3d6;--dark:#1f2331;--dark2:#2a3040;--bg:#f6f9fb;--text:#2b3245;--muted:#6b7280;--line:#e6ebf0;--white:#fff;--grad:linear-gradient(135deg,#00c896,#00a3d6)}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;cursor:pointer;font-size:16px;font-weight:600;border-radius:28px;padding:13px 30px;transition:.3s}
.btn-grad{background:var(--grad);color:#fff;box-shadow:0 8px 22px rgba(0,178,137,.35)}
.btn-grad:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,163,214,.4)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.35);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.22)}
.btn-outline{background:transparent;color:var(--brand);border:1.5px solid var(--brand)}
.btn-outline:hover{background:var(--brand);color:#fff}
.topnav{position:fixed;top:0;left:0;right:0;z-index:999;transition:.35s;background:transparent;padding:16px 0}
.topnav.scrolled{background:rgba(20,24,36,.92);backdrop-filter:blur(12px);padding:10px 0;box-shadow:0 4px 24px rgba(0,0,0,.25)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:#fff}
.logo img{width:38px;height:38px;border-radius:9px}
.logo span em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.nav-menu{display:flex;align-items:center;gap:6px}
.nav-item{position:relative}
.nav-item>a{display:flex;align-items:center;gap:5px;color:rgba(255,255,255,.88);font-size:15.5px;padding:9px 14px;border-radius:8px;transition:.25s;white-space:nowrap}
.nav-item>a:hover,.nav-item>a.active{color:#fff;background:rgba(255,255,255,.1)}
.nav-item>a .caret{display:inline-block;font-size:10px;transition:transform .3s}
.nav-item:hover>a .caret{transform:rotate(180deg)}
.drop-panel{position:absolute;top:100%;left:0;min-width:210px;background:#fff;border-radius:14px;box-shadow:0 18px 45px rgba(31,35,49,.16);padding:10px;opacity:0;visibility:hidden;transform:translateY(12px);transition:.28s}
.nav-item:hover .drop-panel{opacity:1;visibility:visible;transform:translateY(6px)}
.drop-panel a{display:block;color:var(--text);font-size:14.5px;padding:10px 14px;border-radius:9px;transition:.2s}
.drop-panel a:hover{background:rgba(0,178,137,.08);color:var(--brand);padding-left:18px}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-cta{background:var(--grad);color:#fff;padding:10px 22px;border-radius:22px;font-size:14.5px;font-weight:700;box-shadow:0 6px 18px rgba(0,178,137,.4);transition:.3s}
.nav-cta:hover{transform:translateY(-2px)}
.hamburger{display:none;width:42px;height:42px;border:none;background:rgba(255,255,255,.12);border-radius:10px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.hamburger span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.hero{position:relative;background:radial-gradient(1100px 520px at 78% -10%,rgba(0,178,137,.35),transparent 60%),radial-gradient(900px 480px at 8% 110%,rgba(0,163,214,.3),transparent 55%),linear-gradient(160deg,#161a28,#1f2331 60%,#14202b);color:#fff;padding:150px 0 90px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:46px 46px;pointer-events:none}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center;position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(0,178,137,.18);border:1px solid rgba(0,200,150,.45);color:#7ef0cf;font-size:13.5px;padding:7px 16px;border-radius:20px;margin-bottom:22px}
.hero h1{font-size:50px;line-height:1.2;font-weight:900;letter-spacing:.5px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{color:rgba(255,255,255,.75);font-size:17px;margin:20px 0 30px;max-width:540px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.hero-data{display:flex;gap:34px;margin-top:44px;flex-wrap:wrap}
.hd-item strong{display:block;font-size:30px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hd-item span{color:rgba(255,255,255,.65);font-size:13.5px}
.demo{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);backdrop-filter:blur(14px);border-radius:22px;padding:22px;box-shadow:0 30px 70px rgba(0,0,0,.35)}
.demo-top{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.demo-dots{display:flex;gap:6px}
.demo-dots i{width:11px;height:11px;border-radius:50%;display:block}
.demo-dots i:nth-child(1){background:#ff5f57}
.demo-dots i:nth-child(2){background:#febc2e}
.demo-dots i:nth-child(3){background:#28c840}
.demo-title{margin-left:8px;font-size:14px;color:rgba(255,255,255,.8);font-weight:600}
.demo-status{margin-left:auto;font-size:12.5px;color:#ffd166;background:rgba(255,209,102,.12);padding:4px 12px;border-radius:12px}
.demo-status.on{color:#5ef0b0;background:rgba(94,240,176,.13)}
.demo-gauge-wrap{display:flex;align-items:center;gap:22px;margin-bottom:18px}
.gauge{position:relative;width:150px;height:150px;flex-shrink:0}
.gauge svg{transform:rotate(-90deg)}
.gauge .g-track{fill:none;stroke:rgba(255,255,255,.12);stroke-width:11}
.gauge .g-bar{fill:none;stroke:url(#gGrad);stroke-width:11;stroke-linecap:round;stroke-dasharray:377;stroke-dashoffset:377;transition:stroke-dashoffset 1.2s ease}
.gauge .g-val{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}
.gauge .g-val strong{font-size:30px;font-weight:800}
.gauge .g-val span{font-size:12px;color:rgba(255,255,255,.6)}
.demo-metrics{flex:1;display:flex;flex-direction:column;gap:12px}
.dm-row{display:flex;justify-content:space-between;align-items:center;background:rgba(255,255,255,.06);border-radius:12px;padding:10px 14px}
.dm-row span{font-size:13px;color:rgba(255,255,255,.62)}
.dm-row strong{font-size:15.5px;color:#7ef0cf}
.demo-node-list{display:flex;flex-direction:column;gap:8px;max-height:150px;overflow-y:auto;margin-bottom:14px;padding-right:4px}
.demo-node-list::-webkit-scrollbar{width:4px}
.demo-node-list::-webkit-scrollbar-thumb{background:rgba(255,255,255,.25);border-radius:2px}
.demo-node{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.07);border:1px solid transparent;border-radius:12px;padding:10px 14px;cursor:pointer;transition:.25s;font-size:14px}
.demo-node:hover{background:rgba(255,255,255,.12)}
.demo-node.active{border-color:var(--brand);background:rgba(0,178,137,.16)}
.demo-node .flag{width:26px;height:26px;border-radius:50%;background:linear-gradient(135deg,#0096c7,#00c896);display:flex;align-items:center;justify-content:center;font-size:13px;flex-shrink:0}
.demo-node .dn-name{flex:1}
.demo-node .dn-ping{font-size:12.5px;color:#7ef0cf}
.demo-node .dn-lock{font-size:12px;color:rgba(255,255,255,.45)}
.demo-connect{width:100%;background:var(--grad);color:#fff;border:none;border-radius:14px;padding:14px;font-size:16px;font-weight:700;cursor:pointer;transition:.3s;letter-spacing:1px}
.demo-connect:hover{filter:brightness(1.1)}
.demo-connect.connected{background:rgba(255,95,87,.9)}
.demo-feat{display:flex;gap:14px;justify-content:center;margin-top:12px;font-size:12.5px;color:rgba(255,255,255,.55)}
.demo-feat span.on{color:#7ef0cf}
.section{padding:88px 0}
.section-alt{background:#fff}
.section-head{text-align:center;max-width:680px;margin:0 auto 52px}
.section-head .kicker{display:inline-block;color:var(--brand);font-weight:700;font-size:14px;letter-spacing:2px;text-transform:uppercase;margin-bottom:12px}
.section-head h2{font-size:36px;font-weight:800;color:var(--dark)}
.section-head p{color:var(--muted);margin-top:14px;font-size:15.5px}
.node-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:24px}
.node-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;transition:.3s;position:relative;overflow:hidden}
.node-card:hover{transform:translateY(-5px);box-shadow:0 16px 38px rgba(31,35,49,.1);border-color:rgba(0,178,137,.5)}
.node-card .nc-region{font-weight:800;font-size:17px;color:var(--dark);margin-bottom:6px}
.node-card .nc-bar{height:6px;border-radius:3px;background:var(--grad);margin:10px 0 12px}
.node-card .nc-info{display:flex;justify-content:space-between;font-size:13px;color:var(--muted)}
.node-card .nc-info strong{color:var(--brand)}
.speed-panel{background:linear-gradient(135deg,#0f2b26,#12303c);border-radius:22px;padding:40px;display:grid;grid-template-columns:repeat(4,1fr);gap:26px;text-align:center;color:#fff;box-shadow:0 20px 50px rgba(15,43,38,.35)}
.sp-item strong{display:block;font-size:34px;font-weight:800;color:#7ef0cf}
.sp-item span{font-size:13.5px;color:rgba(255,255,255,.65)}
.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.tech-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;transition:.3s}
.tech-card:hover{transform:translateY(-5px);box-shadow:0 14px 34px rgba(31,35,49,.1)}
.tech-card .tc-icon{width:52px;height:52px;border-radius:14px;background:rgba(0,178,137,.12);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.tech-card h3{font-size:18px;margin-bottom:10px;color:var(--dark)}
.tech-card p{font-size:14px;color:var(--muted)}
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px 24px;transition:.3s}
.feat-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(31,35,49,.1);border-color:transparent}
.feat-card .fc-icon{width:54px;height:54px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:18px;box-shadow:0 8px 18px rgba(0,178,137,.3)}
.feat-card h3{font-size:17px;margin-bottom:10px;color:var(--dark)}
.feat-card p{font-size:14px;color:var(--muted)}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.scene-card{position:relative;border-radius:18px;overflow:hidden;min-height:200px;display:flex;align-items:flex-end;padding:24px;transition:.35s;background:linear-gradient(150deg,#1f2331,#2a3040)}
.scene-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 30%,rgba(15,20,32,.85));pointer-events:none}
.scene-card:hover{transform:translateY(-6px) scale(1.01);box-shadow:0 20px 44px rgba(31,35,49,.3)}
.scene-card .sc-tag{position:absolute;top:18px;left:18px;background:var(--grad);color:#fff;font-size:12px;font-weight:700;padding:5px 13px;border-radius:14px;z-index:2}
.scene-card .sc-body{position:relative;z-index:2;color:#fff}
.scene-card .sc-body h3{font-size:18px;margin-bottom:6px}
.scene-card .sc-body p{font-size:13.5px;color:rgba(255,255,255,.72)}
.steps-row{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step}
.step-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px 26px;position:relative;transition:.3s}
.step-card:hover{transform:translateY(-5px);box-shadow:0 14px 34px rgba(31,35,49,.1)}
.step-card .st-num{width:46px;height:46px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;font-size:20px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;box-shadow:0 8px 18px rgba(0,178,137,.35)}
.step-card h3{font-size:17px;margin-bottom:10px;color:var(--dark)}
.step-card p{font-size:14px;color:var(--muted)}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px 28px;position:relative;transition:.3s;display:flex;flex-direction:column}
.price-card:hover{transform:translateY(-6px);box-shadow:0 18px 42px rgba(31,35,49,.1)}
.price-card.hot{border:2px solid var(--brand);background:linear-gradient(180deg,rgba(0,178,137,.06),#fff 30%)}
.price-card .pc-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12.5px;font-weight:700;padding:6px 18px;border-radius:16px;box-shadow:0 6px 16px rgba(0,178,137,.4)}
.price-card .pc-name{font-size:18px;font-weight:800;color:var(--dark)}
.price-card .pc-desc{font-size:13.5px;color:var(--muted);margin:8px 0 20px}
.price-card .pc-price{font-size:42px;font-weight:900;color:var(--dark)}
.price-card .pc-price small{font-size:15px;color:var(--muted);font-weight:500}
.price-card .pc-list{margin:22px 0;flex:1}
.price-card .pc-list li{display:flex;align-items:center;gap:10px;font-size:14.5px;padding:9px 0;border-bottom:1px dashed var(--line)}
.price-card .pc-list li::before{content:"✓";color:var(--brand);font-weight:800}
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:14px;overflow:hidden;transition:.3s}
.faq-item.open{border-color:rgba(0,178,137,.5);box-shadow:0 10px 28px rgba(31,35,49,.08)}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;cursor:pointer;font-weight:700;font-size:16px;color:var(--dark)}
.faq-q .fq-icon{width:26px;height:26px;border-radius:50%;background:rgba(0,178,137,.1);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0;transition:.3s}
.faq-item.open .fq-icon{transform:rotate(45deg);background:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a-inner{padding:0 24px 22px;color:var(--muted);font-size:14.5px}
.faq-a-inner ol{padding-left:20px;margin-top:10px}
.faq-a-inner ol li{margin-bottom:6px}
.testi-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.t-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:26px;transition:.3s}
.t-card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(31,35,49,.08)}
.t-stars{color:#ffb020;font-size:15px;letter-spacing:2px;margin-bottom:12px}
.t-text{font-size:14.5px;color:var(--text);margin-bottom:18px}
.t-user{display:flex;align-items:center;gap:12px}
.t-avatar{width:42px;height:42px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px}
.t-user strong{display:block;font-size:14.5px;color:var(--dark)}
.t-user span{font-size:12.5px;color:var(--muted)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:#fff;border-radius:18px;overflow:hidden;border:1px solid var(--line);transition:.3s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(31,35,49,.12)}
.news-card .nc-img{position:relative;overflow:hidden;aspect-ratio:16/9}
.news-card .nc-img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.news-card:hover .nc-img img{transform:scale(1.08)}
.news-card .nc-img .nc-date{position:absolute;top:14px;left:14px;background:rgba(15,20,32,.75);color:#fff;font-size:12px;padding:5px 12px;border-radius:12px;backdrop-filter:blur(4px)}
.news-card .nc-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.news-card .nc-body h3{font-size:16.5px;line-height:1.5;margin-bottom:10px;color:var(--dark);transition:.25s}
.news-card:hover .nc-body h3{color:var(--brand)}
.news-card .nc-body p{font-size:13.5px;color:var(--muted);flex:1}
.news-card .nc-more{margin-top:14px;color:var(--brand);font-size:14px;font-weight:700}
.cta-banner{background:radial-gradient(800px 400px at 20% 0,rgba(0,178,137,.3),transparent),radial-gradient(700px 380px at 90% 100%,rgba(0,163,214,.28),transparent),linear-gradient(150deg,#161a28,#1f2331);border-radius:26px;padding:64px 40px;text-align:center;color:#fff;position:relative;overflow:hidden}
.cta-banner h2{font-size:36px;font-weight:900;margin-bottom:14px}
.cta-banner p{color:rgba(255,255,255,.72);font-size:16px;margin-bottom:30px}
.footer{background:#141826;color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:13.5px;max-width:300px}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px;position:relative;padding-left:14px}
.footer-col h4::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:16px;background:var(--grad);border-radius:2px}
.footer-col a{display:block;font-size:13.5px;padding:6px 0;transition:.25s}
.footer-col a:hover{color:var(--brand);padding-left:6px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;text-align:center;font-size:12.5px;color:rgba(255,255,255,.45)}
.page-hero{background:radial-gradient(800px 400px at 80% -20%,rgba(0,178,137,.3),transparent),linear-gradient(160deg,#161a28,#1f2331);color:#fff;padding:150px 0 70px;text-align:center}
.page-hero h1{font-size:42px;font-weight:900;margin-bottom:14px}
.page-hero p{color:rgba(255,255,255,.7);max-width:640px;margin:0 auto;font-size:16px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);padding:20px 0;flex-wrap:wrap}
.breadcrumb a{color:var(--muted);transition:.2s}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#c3cad4}
.breadcrumb .cur{color:var(--brand);font-weight:600}
.dl-hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center}
.dl-meta{display:flex;gap:30px;margin-top:36px;flex-wrap:wrap}
.dl-meta div strong{display:block;font-size:26px;font-weight:800;color:#7ef0cf}
.dl-meta div span{font-size:13px;color:rgba(255,255,255,.6)}
.ver-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.ver-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;transition:.3s;display:flex;flex-direction:column;position:relative}
.ver-card:hover{transform:translateY(-5px);box-shadow:0 16px 38px rgba(31,35,49,.1)}
.ver-card .vc-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.ver-card .vc-ver{font-weight:800;font-size:19px;color:var(--dark)}
.ver-card .vc-tag{background:rgba(0,178,137,.1);color:var(--brand);font-size:12px;font-weight:700;padding:4px 12px;border-radius:12px}
.ver-card .vc-size{font-size:13px;color:var(--muted);margin-bottom:16px}
.ver-card .vc-list{flex:1;margin-bottom:20px}
.ver-card .vc-list li{font-size:14px;padding:7px 0;color:var(--text);display:flex;gap:9px;align-items:flex-start}
.ver-card .vc-list li::before{content:"✓";color:var(--brand);font-weight:800;flex-shrink:0}
.sys-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.sys-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;display:flex;gap:16px;align-items:flex-start;transition:.3s}
.sys-card:hover{box-shadow:0 12px 30px rgba(31,35,49,.08)}
.sys-card .sy-icon{width:46px;height:46px;border-radius:12px;background:rgba(0,178,137,.12);display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.sys-card strong{display:block;font-size:15px;color:var(--dark);margin-bottom:4px}
.sys-card span{font-size:13.5px;color:var(--muted)}
.install-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.install-steps .step-card{text-align:center}
.install-steps .step-card .st-num{margin:0 auto 16px}
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:36px;align-items:start}
.article-main{background:#fff;border:1px solid var(--line);border-radius:20px;padding:40px;overflow:hidden}
.article-meta{display:flex;align-items:center;gap:16px;font-size:13.5px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap}
.article-meta .am-chip{background:rgba(0,178,137,.1);color:var(--brand);font-weight:700;padding:4px 13px;border-radius:12px;font-size:12.5px}
.article-main h1{font-size:30px;line-height:1.4;margin-bottom:18px;color:var(--dark)}
.article-cover{margin:8px 0 28px;border-radius:14px;overflow:hidden;aspect-ratio:16/9}
.article-cover img{width:100%;height:100%;object-fit:cover}
.article-main h2{font-size:22px;margin:36px 0 16px;padding-left:14px;border-left:4px solid var(--brand);color:var(--dark);scroll-margin-top:90px}
.article-main p{margin-bottom:16px;font-size:15.5px;color:#3a4152;text-align:justify}
.article-main .lead{font-size:16.5px;color:var(--text);background:rgba(0,178,137,.06);border-radius:12px;padding:18px 22px;border-left:3px solid var(--brand)}
.article-fig{margin:22px 0;border-radius:14px;overflow:hidden;aspect-ratio:2/1}
.article-fig img{width:100%;height:100%;object-fit:cover}
.article-fig figcaption{font-size:12.5px;color:var(--muted);text-align:center;padding:8px 0 0}
.article-end{background:#f6f9fb;border-radius:12px;padding:18px 22px;margin-top:30px;font-size:14.5px;color:var(--muted)}
.article-end a{color:var(--brand);font-weight:700}
.prevnext{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.prevnext a{flex:1;min-width:230px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 20px;transition:.25s}
.prevnext a:hover{border-color:var(--brand);box-shadow:0 8px 22px rgba(31,35,49,.08)}
.prevnext a small{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
.prevnext a strong{font-size:14.5px;color:var(--dark)}
.prevnext .back-list{flex:0 0 auto;display:flex;align-items:center;color:var(--brand);font-weight:700}
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;box-shadow:0 8px 26px rgba(31,35,49,.06)}
.side-card h4{font-size:16px;color:var(--dark);margin-bottom:16px;padding-left:12px;border-left:4px solid var(--brand)}
.toc-list{position:relative}
.toc-item{position:relative;padding:9px 0 9px 24px;font-size:14px;color:var(--muted);cursor:pointer;transition:.25s;line-height:1.5}
.toc-item::before{content:"";position:absolute;left:5px;top:0;bottom:0;width:2px;background:var(--line)}
.toc-item::after{content:"";position:absolute;left:1px;top:16px;width:10px;height:10px;border-radius:50%;background:#fff;border:2.5px solid #c9d2dc;transition:.25s}
.toc-item:hover{color:var(--brand)}
.toc-item.active{color:var(--brand);font-weight:800}
.toc-item.active::after{border-color:var(--brand);background:var(--brand)}
.hot-list li{display:flex;align-items:flex-start;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line);cursor:pointer;transition:.2s}
.hot-list li:last-child{border-bottom:none}
.hot-list li:hover span{color:var(--brand)}
.rank-badge{width:24px;height:24px;border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:12.5px;font-weight:800;color:#fff;flex-shrink:0;background:#b7c0cc;transition:.25s}
.rank-badge.r1{background:var(--brand)}
.rank-badge.r2{background:linear-gradient(135deg,#ff8a3c,#ff6b2c)}
.rank-badge.r3{background:linear-gradient(135deg,#ffc93c,#f0a500)}
.hot-list li:hover .rank-badge{transform:scale(1.15)}
.hot-list span{font-size:13.5px;color:var(--text);line-height:1.45;transition:.2s}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.tag-cloud a{font-size:13px;color:var(--muted);background:#f1f5f8;border:1.5px solid transparent;padding:6px 14px;border-radius:16px;transition:.25s}
.tag-cloud a:hover{color:var(--brand);border-color:var(--brand);background:rgba(0,178,137,.05)}
.comments{margin-top:36px}
.comments h3{font-size:20px;color:var(--dark);margin-bottom:20px}
.comment{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line)}
.comment:last-child{border-bottom:none}
.comment .c-avatar{width:42px;height:42px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;flex-shrink:0}
.comment .c-head{display:flex;align-items:center;gap:12px;margin-bottom:6px;flex-wrap:wrap}
.comment .c-head strong{font-size:14.5px;color:var(--dark)}
.comment .c-head span{font-size:12.5px;color:var(--muted)}
.comment p{font-size:14px;color:#3a4152}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:20px}
.err-wrap{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:radial-gradient(700px 400px at 50% 0,rgba(0,178,137,.2),transparent),linear-gradient(160deg,#161a28,#1f2331);color:#fff;text-align:center;padding:30px}
.err-code{font-size:120px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1}
.err-wrap h1{font-size:26px;margin:10px 0 14px}
.err-wrap p{color:rgba(255,255,255,.65);margin-bottom:28px}
.err-timer{color:#7ef0cf;font-weight:700}
.sitemap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.sitemap-col{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px}
.sitemap-col h3{font-size:17px;color:var(--dark);margin-bottom:16px;padding-left:12px;border-left:4px solid var(--brand)}
.sitemap-col li{padding:7px 0}
.sitemap-col a{font-size:14px;color:var(--muted);transition:.2s}
.sitemap-col a:hover{color:var(--brand);padding-left:5px}
@media(max-width:992px){
.nav-menu{position:fixed;top:0;right:-320px;width:300px;height:100vh;background:#1b2030;flex-direction:column;align-items:stretch;padding:90px 22px 30px;transition:right .35s;gap:4px;overflow-y:auto;box-shadow:-10px 0 40px rgba(0,0,0,.4)}
.nav-menu.show{right:0}
.nav-item>a{justify-content:space-between;color:rgba(255,255,255,.9);padding:13px 14px;font-size:16px}
.drop-panel{position:static;background:rgba(255,255,255,.05);box-shadow:none;opacity:1;visibility:visible;transform:none;min-width:0;padding:6px 10px;display:none;border-radius:12px}
.nav-item.open .drop-panel{display:block}
.drop-panel a{color:rgba(255,255,255,.75);font-size:14.5px}
.drop-panel a:hover{background:rgba(0,178,137,.12);color:#7ef0cf;padding-left:14px}
.hamburger{display:flex;z-index:1001}
.nav-item.open>a .caret{transform:rotate(180deg)}
.nav-cta{display:none}
.hero-inner,.dl-hero-inner{grid-template-columns:1fr;gap:40px}
.hero h1{font-size:38px}
.feat-grid{grid-template-columns:repeat(2,1fr)}
.node-strip{grid-template-columns:repeat(2,1fr)}
.speed-panel{grid-template-columns:repeat(2,1fr)}
.tech-grid{grid-template-columns:repeat(2,1fr)}
.scene-grid{grid-template-columns:repeat(2,1fr)}
.steps-row{grid-template-columns:1fr}
.pricing-grid{grid-template-columns:1fr;max-width:460px;margin:0 auto}
.testi-grid{grid-template-columns:1fr}
.news-grid{grid-template-columns:repeat(2,1fr)}
.ver-grid{grid-template-columns:1fr;max-width:460px;margin:0 auto}
.sys-grid{grid-template-columns:repeat(2,1fr)}
.install-steps{grid-template-columns:repeat(2,1fr)}
.article-layout{grid-template-columns:1fr}
.article-side{position:static;flex-direction:row;flex-wrap:wrap}
.side-card{flex:1;min-width:240px}
.footer-grid{grid-template-columns:1fr 1fr}
.sitemap-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
.hero{padding:120px 0 60px}
.hero h1{font-size:31px}
.hero-data{gap:22px}
.section{padding:60px 0}
.section-head h2{font-size:27px}
.feat-grid{grid-template-columns:1fr}
.node-strip{grid-template-columns:1fr}
.speed-panel{grid-template-columns:repeat(2,1fr);padding:28px}
.tech-grid{grid-template-columns:1fr}
.scene-grid{grid-template-columns:1fr}
.news-grid{grid-template-columns:1fr}
.related-grid{grid-template-columns:1fr}
.sys-grid{grid-template-columns:1fr}
.install-steps{grid-template-columns:1fr}
.article-main{padding:26px 20px}
.article-main h1{font-size:24px}
.article-main h2{font-size:19px}
.cta-banner{padding:44px 24px}
.cta-banner h2{font-size:26px}
.footer-grid{grid-template-columns:1fr;gap:26px}
.demo-gauge-wrap{flex-direction:column}
.gauge{margin:0 auto}
.demo-metrics{width:100%}
}
@media(max-width:480px){
.hero h1{font-size:27px}
.hero-sub{font-size:15px}
.hero-btns .btn{width:100%}
.hd-item strong{font-size:24px}
.speed-panel{grid-template-columns:1fr;gap:18px}
.page-hero h1{font-size:30px}
.dl-meta{gap:20px}
.prevnext a{min-width:100%}
.err-code{font-size:84px}
.article-side{flex-direction:column}
.side-card{min-width:0}
}