:root{--brand:#0fb37a;--brand-2:#38e0a5;--brand-deep:#075844;--ink:#0c2019;--text:#2b3c35;--muted:#63786e;--line:#e0eee7;--bg:#f4faf7;--card:#fff;--dark:#071b14;--grad:linear-gradient(135deg,#0fb37a 0%,#37dfa4 100%);--shadow:0 10px 30px rgba(8,48,34,.08);--shadow-h:0 18px 44px rgba(8,48,34,.16);--radius:18px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.75;font-size:16px}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-deep);text-decoration:none}
h1,h2,h3,h4{color:var(--ink);line-height:1.3;margin:0 0 .5em;letter-spacing:-.2px}
h1{font-size:clamp(30px,4.4vw,50px)}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:19px}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:78px 0}
.section.tight{padding:56px 0}
.bg-soft{background:linear-gradient(180deg,#f7fcfa,#eef8f3)}
.bg-dark{background:var(--dark);color:#d8ece4}
.bg-dark h2,.bg-dark h3{color:#fff}
.sec-head{max-width:720px;margin:0 auto 46px;text-align:center}
.sec-head.left{margin-left:0;text-align:left}
.eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--brand-deep);background:#e6f7f0;border:1px solid #c9ecdd;padding:5px 12px;border-radius:99px;margin-bottom:14px}
.sec-sub{color:var(--muted);font-size:16px;margin:0}
.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g6{grid-template-columns:repeat(6,1fr)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 26px;border-radius:99px;font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;transition:.22s}
.btn-primary{background:var(--grad);color:#04241a;box-shadow:0 8px 22px rgba(15,179,122,.32)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(15,179,122,.4)}
.btn-ghost{border-color:#bfe6d6;color:var(--brand-deep);background:#fff}
.btn-ghost:hover{border-color:var(--brand);background:#f0fbf6;transform:translateY(-2px)}
.btn-sm{min-height:40px;padding:8px 18px;font-size:14px}
.site-header{position:fixed;top:0;left:0;right:0;z-index:90;background:linear-gradient(180deg,rgba(9,33,25,.96),rgba(6,23,18,.9));backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.07);transition:background .25s,box-shadow .25s}
.site-header:after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,transparent,rgba(56,224,165,.55),transparent);pointer-events:none}
.site-header.is-scrolled{background:rgba(5,20,15,.97);box-shadow:0 8px 26px rgba(0,0,0,.28)}
.header-inner{position:relative;display:flex;align-items:center;gap:18px;height:84px}
.logo{display:flex;align-items:center;gap:12px;color:#fff;font-weight:800;font-size:20px;letter-spacing:.2px;flex:0 0 auto}
.logo img{width:36px;height:36px;border-radius:10px;background:#fff;box-shadow:0 6px 16px rgba(0,0,0,.35)}
.logo small{display:block;font-size:10.5px;letter-spacing:.24em;color:#7fd9b4;font-weight:600}
.nav{display:flex;align-items:center;gap:4px;margin:0 auto}
.nav-link{position:relative;display:flex;align-items:center;min-height:44px;padding:0 20px;border-radius:8px;color:#c9e3d8;font-size:16px;font-weight:600;white-space:nowrap;transition:color .2s}
.nav-link:after{content:"";position:absolute;left:20px;right:20px;bottom:7px;height:2px;border-radius:2px;background:linear-gradient(90deg,#38e0a5,#0fb37a);transform:scaleX(0);transform-origin:left;transition:transform .22s}
.nav-link:hover,.nav-link.is-active{color:#fff;background:transparent}
.nav-link:hover:after,.nav-link.is-active:after{transform:scaleX(1)}
.header-cta{flex:0 0 auto}
.header-cta .btn{min-height:46px;padding:0 24px;font-size:15px}
@media(max-width:992px){
 .header-inner{gap:10px;height:72px}
 .logo{gap:10px;font-size:18px}
 .logo img{width:32px;height:32px}
 .nav{display:flex;flex:1 1 auto;justify-content:center;min-width:0;margin:0 2px;gap:0}
 .nav-link{padding:0 10px;font-size:14px;white-space:nowrap}
 .nav-link:after{left:10px;right:10px;bottom:8px}
 .header-cta .btn{min-height:40px;padding:0 14px;font-size:13px}
 .logo small{display:none}
}
.hero{position:relative;padding:146px 0 74px;background:radial-gradient(1100px 520px at 82% -8%,rgba(56,224,165,.28),transparent 62%),radial-gradient(760px 420px at 6% 22%,rgba(15,179,122,.22),transparent 60%),linear-gradient(160deg,#061a13 0%,#082a1f 52%,#05150f 100%);color:#d7ece3;overflow:hidden}
.hero:after{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:58px 58px;mask-image:radial-gradient(600px 380px at 50% 0,#000 30%,transparent 78%);pointer-events:none}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;gap:48px;align-items:center}
.hero h1{color:#fff;margin-bottom:16px}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{font-size:17px;color:#b6d5c9;max-width:520px}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:#9df0cd;background:rgba(56,224,165,.12);border:1px solid rgba(56,224,165,.34);padding:6px 14px;border-radius:99px;margin-bottom:18px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 30px}
.hero-actions .btn-ghost{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.hero-actions .btn-ghost:hover{background:rgba(255,255,255,.08);border-color:#fff}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:520px}
.stat{background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:14px 16px}
.stat b{display:block;font-size:25px;color:#fff;line-height:1.25;letter-spacing:-.5px}
.stat span{font-size:12.5px;color:#9ec2b4}
.demo{position:relative;background:linear-gradient(165deg,#0a2a20,#0b3a2b 62%,#092018);border:1px solid rgba(80,235,180,.28);border-radius:22px;padding:20px;box-shadow:0 26px 60px rgba(0,0,0,.42);color:#e2f6ee}
.demo>input{position:absolute;left:-9999px;opacity:0}
.demo-top{display:flex;align-items:center;justify-content:space-between;font-size:13px;margin-bottom:16px;gap:10px}
.demo-brand{display:flex;align-items:center;gap:8px;font-weight:700;color:#eafaf3}
.demo-brand i{width:9px;height:9px;border-radius:50%;background:#38e0a5;box-shadow:0 0 0 4px rgba(56,224,165,.18);display:inline-block}
.demo-state{font-weight:700;font-size:12px;padding:4px 10px;border-radius:99px;border:1px solid rgba(255,255,255,.2);color:#9ec2b4}
.s-on{display:none;color:#0a2a20;background:#38e0a5;border:0;border-radius:99px;padding:3px 10px}
.demo-nodes{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.demo-nodes label{font-size:12.5px;padding:7px 12px;border-radius:99px;border:1px solid rgba(255,255,255,.18);color:#bcd9cc;cursor:pointer;transition:.2s;min-height:34px;display:inline-flex;align-items:center}
.demo-nodes label:hover{border-color:#38e0a5;color:#eafaf3}
.board{position:relative;height:196px;border-radius:16px;background:radial-gradient(circle at 50% 120%,rgba(56,224,165,.18),transparent 62%);border:1px solid rgba(255,255,255,.09);overflow:hidden}
.ring{position:absolute;left:50%;top:50%;width:150px;height:150px;margin:-75px 0 0 -75px;border-radius:50%;border:1px dashed rgba(120,240,200,.35)}
.ring:after{content:"";position:absolute;inset:14px;border-radius:50%;border:1px solid rgba(120,240,200,.22)}
.ring b{position:absolute;left:50%;top:-5px;width:8px;height:8px;margin-left:-4px;border-radius:50%;background:#38e0a5;box-shadow:0 0 12px #38e0a5}
.node-vals{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:.25s}
.node-vals strong{font-size:40px;line-height:1;color:#fff;letter-spacing:-1px}
.node-vals strong small{font-size:14px;color:#8fc6b0;margin-left:4px;font-weight:600}
.node-vals em{font-style:normal;font-size:12.5px;color:#9ec2b4;margin-top:6px}
.node-vals u{text-decoration:none;display:flex;gap:18px;margin-top:12px;font-size:12px;color:#8fc6b0}
.node-vals u b{color:#e9fff6;font-size:14px;display:block}
.offlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;background:rgba(6,24,18,.92);color:#8fc6b0;font-size:13px;gap:8px;z-index:3;transition:.2s}
.offlay b{color:#eafaf3;font-size:16px}
.demo-actions{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px}
.demo-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:10px 26px;border-radius:99px;background:var(--grad);color:#04241a;font-weight:800;cursor:pointer;font-size:15px;flex:1;transition:.2s}
.demo-btn:hover{filter:brightness(1.06)}
.demo-btn .t-disc{display:none}
.demo-note{font-size:12px;color:#8fc6b0;margin:12px 0 0;line-height:1.6}
.tags-mini{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.tags-mini span{font-size:11.5px;color:#a9d7c4;border:1px solid rgba(255,255,255,.14);border-radius:8px;padding:4px 8px}
#dn-tokyo:checked ~ .demo-nodes label[for=dn-tokyo],#dn-sg:checked ~ .demo-nodes label[for=dn-sg],#dn-la:checked ~ .demo-nodes label[for=dn-la]{background:rgba(56,224,165,.16);border-color:#38e0a5;color:#eafaf3}
#dn-tokyo:checked ~ .board .v-tokyo,#dn-sg:checked ~ .board .v-sg,#dn-la:checked ~ .board .v-la{opacity:1;visibility:visible}
#dn-connect:checked ~ .board .offlay{opacity:0;visibility:hidden}
#dn-connect:checked ~ .board .ring{animation:spin 6s linear infinite;border-color:#38e0a5}
#dn-connect:checked ~ .demo-actions .t-conn{display:none}
#dn-connect:checked ~ .demo-actions .t-disc{display:inline}
#dn-connect:checked ~ .demo-top .s-off{display:none}
#dn-connect:checked ~ .demo-top .s-on{display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}
.data-strip{background:#07211a;color:#cfe9df}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.data-grid div{text-align:center;padding:6px 10px;border-right:1px solid rgba(255,255,255,.1)}
.data-grid div:last-child{border:0}
.data-grid b{display:block;font-size:28px;color:#fff;letter-spacing:-.5px}
.data-grid span{font-size:13px;color:#93bcac}
.fcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;transition:.25s;box-shadow:0 2px 10px rgba(9,58,42,.04)}
.fcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-h);border-color:#bfe9d8}
.icon-badge{width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;font-size:21px;background:linear-gradient(160deg,#e8fbf2,#d6f5e8);border:1px solid #c8efdf;margin-bottom:14px}
.fcard h3{margin-bottom:8px;font-size:17.5px}
.fcard p{margin:0;color:var(--muted);font-size:14.5px}
.region{background:#0a2a20;border:1px solid rgba(70,225,170,.2);border-radius:var(--radius);padding:24px;color:#cfe9df;transition:.25s}
.region:hover{transform:translateY(-4px);border-color:rgba(70,225,170,.5);box-shadow:0 16px 40px rgba(0,0,0,.28)}
.region h3{color:#fff;font-size:16.5px;display:flex;justify-content:space-between;align-items:center;gap:8px}
.region h3 span{font-size:12px;font-weight:600;color:#7fd9b4;background:rgba(56,224,165,.12);border-radius:99px;padding:3px 9px}
.region ul{margin:12px 0 14px;font-size:13.5px;color:#a6cbbd}
.region ul li{display:flex;justify-content:space-between;padding:5px 0;border-bottom:1px dashed rgba(255,255,255,.09)}
.region ul li:last-child{border:0}
.bar{height:7px;border-radius:99px;background:rgba(255,255,255,.12);overflow:hidden}
.bar i{display:block;height:100%;border-radius:99px;background:var(--grad)}
.region p{margin:8px 0 0;font-size:12px;color:#8fc6b0}
.scard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:.25s}
.scard:hover{transform:translateY(-5px);box-shadow:var(--shadow-h)}
.scard .em{font-size:24px}
.scard h3{font-size:16.5px;margin:10px 0 6px}
.scard p{font-size:14px;color:var(--muted);margin:0}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px 24px}
.step b.num{position:absolute;top:-15px;left:24px;width:34px;height:34px;border-radius:11px;background:var(--grad);color:#04241a;display:flex;align-items:center;justify-content:center;font-size:15px;box-shadow:0 6px 16px rgba(15,179,122,.3)}
.step h3{margin:14px 0 6px;font-size:17px}
.step p{margin:0;color:var(--muted);font-size:14px}
.plan{background:#fff;border:1px solid var(--line);border-radius:20px;padding:30px 26px;transition:.25s;position:relative}
.plan:hover{transform:translateY(-6px);box-shadow:var(--shadow-h)}
.plan.featured{border:2px solid var(--brand);box-shadow:0 18px 44px rgba(15,179,122,.18)}
.plan .badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--grad);color:#04241a;font-size:12px;font-weight:800;padding:5px 14px;border-radius:99px;white-space:nowrap}
.plan h3{font-size:17px;margin-bottom:4px}
.plan .price{font-size:34px;font-weight:800;color:var(--ink);letter-spacing:-1px;margin:8px 0 2px}
.plan .price small{font-size:14px;font-weight:600;color:var(--muted)}
.plan .desc{font-size:13px;color:var(--muted);margin-bottom:16px}
.plan ul{font-size:14px;color:#3a544a;margin-bottom:22px}
.plan ul li{padding:6px 0 6px 24px;position:relative}
.plan ul li:before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:800}
.plan .btn{width:100%}
.faq{max-width:900px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:4px 20px;margin-bottom:12px;transition:.2s}
.faq details[open]{border-color:#bfe9d8;box-shadow:var(--shadow)}
.faq summary{cursor:pointer;font-weight:700;color:var(--ink);padding:16px 28px 16px 0;position:relative;list-style:none;font-size:15.5px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:0;top:13px;font-size:20px;color:var(--brand);font-weight:700}
.faq details[open] summary:after{content:"–"}
.faq details p{margin:0 0 16px;color:var(--muted);font-size:14.5px}
.quote{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:12px;transition:.25s}
.quote:hover{transform:translateY(-4px);box-shadow:var(--shadow-h)}
.quote p{margin:0;font-size:14.5px;color:#2f473d}
.quote .who{display:flex;align-items:center;gap:10px;margin-top:auto}
.avatar{width:38px;height:38px;border-radius:50%;background:var(--grad);color:#04241a;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:15px;flex:0 0 auto}
.quote .who b{display:block;font-size:14px;color:var(--ink)}
.quote .who span{font-size:12px;color:var(--muted)}
.stars{color:#f5a623;font-size:13px;letter-spacing:2px}
.ncard{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.ncard:hover{transform:translateY(-5px);box-shadow:var(--shadow-h)}
.ncard img{aspect-ratio:16/9;object-fit:cover;width:100%}
.ncard .nc-body{padding:18px 20px 20px}
.ncard .nc-meta{font-size:12px;color:var(--muted);display:flex;gap:10px;margin-bottom:8px}
.ncard h3{font-size:16px;margin-bottom:8px}
.ncard h3 a{color:var(--ink)}
.ncard h3 a:hover{color:var(--brand-deep)}
.ncard p{font-size:13.5px;color:var(--muted);margin:0}
.cta{position:relative;background:radial-gradient(600px 300px at 20% 0,rgba(56,224,165,.25),transparent 60%),linear-gradient(150deg,#07211a,#0a3a2a);color:#d7ece3;border-radius:24px;padding:46px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;overflow:hidden}
.cta h2{color:#fff;margin-bottom:8px}
.cta p{margin:0;color:#a9cfc0;max-width:560px}
.site-footer{background:#05170f;color:#9dbfb1;padding:56px 0 26px;font-size:14px}
.fcols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.site-footer h4{color:#fff;font-size:14px;letter-spacing:.06em;margin-bottom:14px}
.site-footer a{color:#a9c9bb;font-size:13.5px}
.site-footer a:hover{color:#5ff0be}
.fcols>div>a{display:block;padding:5px 0}
.site-footer .logo{margin-bottom:12px;font-size:20px;color:#fff}
.site-footer .logo:hover{color:#fff}
.site-footer p{font-size:13.5px;line-height:1.8;max-width:300px}
.fbottom{margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.09);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#7fa596}
.fbottom .flinks{display:flex;gap:16px;flex-wrap:wrap}
.to-top{position:fixed;right:22px;bottom:24px;width:46px;height:46px;border-radius:50%;background:var(--grad);color:#04241a;display:flex;align-items:center;justify-content:center;font-weight:800;box-shadow:0 12px 26px rgba(8,60,42,.28);z-index:80}
.to-top:hover{filter:brightness(1.08)}
.page-hero{padding:138px 0 54px;background:radial-gradient(760px 340px at 78% 0,rgba(56,224,165,.2),transparent 62%),linear-gradient(160deg,#061a13,#0a2c20);color:#cfe9df}
.page-hero h1{color:#fff;margin-bottom:10px;font-size:clamp(26px,3.6vw,42px)}
.page-hero p{color:#a9cfc0;margin:0;max-width:760px}
.page-hero.light{background:#fff;border-bottom:1px solid var(--line)}
.page-hero.light h1{color:var(--ink)}
.page-hero.light p{color:var(--muted)}
.page-hero.light .breadcrumb{color:var(--muted)}
.page-hero.light .breadcrumb a{color:var(--brand-deep)}
.page-hero.light .breadcrumb span{color:var(--muted)}
.breadcrumb{display:flex;gap:8px;flex-wrap:wrap;font-size:13px;margin-bottom:16px;color:#8fc6b0;align-items:center}
.breadcrumb a{color:#b6e3cf}
.breadcrumb a:hover{color:#fff}
.breadcrumb span{color:#7fa596}
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 312px;gap:34px;align-items:start;padding:44px 0 70px}
.article{background:#fff;border:1px solid var(--line);border-radius:20px;padding:36px 40px;box-shadow:var(--shadow);min-width:0}
.article-head h1{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.article .meta{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-bottom:22px;padding-bottom:18px;border-bottom:1px dashed var(--line)}
.article .cover{border-radius:14px;overflow:hidden;margin:0 0 12px}
.article .cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article .cap{font-size:12px;color:var(--muted);margin:8px 0 22px}
.article-body h2{font-size:23px;margin:34px 0 12px;padding-left:14px;border-left:4px solid var(--brand);scroll-margin-top:106px}
.article-body p{font-size:16.2px;color:#314a40;line-height:1.95}
.article-body figure{margin:26px 0}
.article-body figure img{width:100%;border-radius:14px;aspect-ratio:2/1;object-fit:cover}
.article-body figcaption{font-size:12.5px;color:var(--muted);margin-top:8px;text-align:center}
.article-body blockquote{margin:24px 0;padding:18px 22px;background:#f2fbf7;border-left:4px solid var(--brand);border-radius:0 12px 12px 0;color:#265444;font-size:15.5px}
.article-body blockquote b{color:var(--brand-deep)}
.article-body ul.dot{padding-left:2px;margin:0 0 18px}
.article-body ul.dot li{position:relative;padding:5px 0 5px 22px;color:#314a40;font-size:15.5px}
.article-body ul.dot li:before{content:"";position:absolute;left:2px;top:15px;width:7px;height:7px;border-radius:50%;background:var(--brand)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:34px 0 0;padding-top:24px;border-top:1px solid var(--line)}
.post-nav a{padding:14px 18px;border:1px solid var(--line);border-radius:12px;background:#f8fdfb;font-size:14px;font-weight:600}
.post-nav a:hover{border-color:#bfe9d8;background:#effbf6}
.post-nav a span{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-bottom:4px}
.related{margin-top:26px}
.related h2{font-size:19px;margin-bottom:14px}
.related ul li{padding:10px 0;border-bottom:1px dashed var(--line);font-size:14.5px}
.related ul li:last-child{border:0}
.comments{margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
.comments h2{font-size:20px;margin-bottom:16px}
.comment{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line)}
.comment:last-child{border:0}
.comment .who{font-size:13.5px;color:var(--ink);font-weight:700}
.comment .who span{font-weight:400;color:var(--muted);font-size:12px;margin-left:8px}
.comment p{margin:4px 0 0;font-size:14.5px;color:#3a544a}
.sidebar{position:sticky;top:92px;display:flex;flex-direction:column;gap:18px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;box-shadow:0 4px 14px rgba(9,58,42,.05)}
.side-card h3{font-size:15px;margin-bottom:14px;padding-left:10px;border-left:3px solid var(--brand);line-height:1.2}
.toc-list{position:relative;border-left:2px solid #e5f2ec;margin-left:4px}
.toc-list li{position:relative;padding:7px 0 7px 18px}
.toc-list li:before{content:"";position:absolute;left:-6px;top:16px;width:9px;height:9px;border-radius:50%;background:#d5ece2;border:2px solid #fff}
.toc-list li.is-active:before{background:var(--brand);box-shadow:0 0 0 3px rgba(15,179,122,.16)}
.toc-list a{font-size:13.5px;color:#4a6459;display:block}
.toc-list li.is-active a{color:var(--brand-deep);font-weight:700}
.hot-list li{display:flex;gap:10px;align-items:flex-start;padding:8px 0;border-bottom:1px dashed var(--line);font-size:13.5px}
.hot-list li:last-child{border:0}
.hot-list b{flex:0 0 auto;width:20px;height:20px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:11px;color:#fff;background:#b7c9c1;transition:.2s;font-weight:700}
.hot-list li:nth-child(1) b{background:linear-gradient(135deg,#0fb37a,#38e0a5)}
.hot-list li:nth-child(2) b{background:linear-gradient(135deg,#f08c2e,#f7b955)}
.hot-list li:nth-child(3) b{background:linear-gradient(135deg,#c8a13a,#e8cd76)}
.hot-list li:hover b{transform:scale(1.12)}
.hot-list a:hover{color:var(--brand-deep)}
.hot-list span{color:#3d574c}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tags a{font-size:12.5px;padding:6px 11px;border-radius:99px;border:1px solid var(--line);color:#4a6459;background:#f8fdfb}
.tags a:hover{border-color:var(--brand);color:var(--brand-deep);background:#eefaf4}
.dl-hero{padding:138px 0 60px;background:radial-gradient(900px 420px at 80% -10%,rgba(56,224,165,.25),transparent 62%),linear-gradient(160deg,#061a13,#0a2c20);color:#cfe9df}
.dl-hero .hero-inner{padding:0}
.dl-hero h1{color:#fff}
.dl-hero p{color:#a9cfc0}
.dl-meta{display:flex;gap:18px;flex-wrap:wrap;font-size:13px;color:#9ec2b4;margin-top:18px}
.dl-meta b{color:#fff;font-size:15px;display:block}
.vcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.25s;position:relative}
.vcard:hover{transform:translateY(-5px);box-shadow:var(--shadow-h)}
.vcard.recommend{border:2px solid var(--brand)}
.vcard .tag{position:absolute;top:-12px;right:20px;background:var(--grad);color:#04241a;font-size:11.5px;font-weight:800;padding:4px 11px;border-radius:99px}
.vcard h3{font-size:17px;margin-bottom:4px}
.vcard .sub{font-size:13px;color:var(--muted);margin-bottom:12px}
.vcard ul{font-size:14px;color:#3a544a;margin-bottom:18px}
.vcard ul li{padding:5px 0 5px 22px;position:relative}
.vcard ul li:before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:800}
.vcard .btn{width:100%}
.req-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.req{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}
.req span{font-size:12.5px;color:var(--muted);display:block}
.req b{font-size:15.5px;color:var(--ink)}
.prose{background:#fff;border:1px solid var(--line);border-radius:20px;padding:36px 40px;max-width:900px;margin:0 auto;box-shadow:var(--shadow)}
.prose h2{font-size:22px;margin:30px 0 10px}
.prose h3{font-size:17px;margin:20px 0 8px}
.prose p,.prose li{font-size:15.5px;color:#314a40}
.prose ul.dot li{position:relative;padding:5px 0 5px 22px}
.prose ul.dot li:before{content:"";position:absolute;left:2px;top:14px;width:7px;height:7px;border-radius:50%;background:var(--brand)}
.prose table{width:100%;border-collapse:collapse;font-size:14px;margin:16px 0}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.prose th{background:#f2fbf7;color:var(--ink)}
.e404{min-height:78vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:130px 20px 60px}
.e404 .code{font-size:clamp(72px,16vw,150px);font-weight:800;letter-spacing:-6px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.e404 p{color:var(--muted)}
.sitemap-grid a{display:block;padding:8px 0;border-bottom:1px dashed var(--line);font-size:14.5px}
.sitemap-grid a:hover{color:var(--brand-deep);padding-left:4px}
.sitemap-grid h3{margin-bottom:10px;font-size:16px}
html.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
html.js .reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal,.btn,.fcard,.region,.scard,.plan,.ncard,.quote,.vcard{transition:none!important;transform:none!important;opacity:1!important}#dn-connect:checked ~ .board .ring{animation:none}}
@media(max-width:992px){
 .section{padding:60px 0}
 .hero{padding:124px 0 58px}
 .hero-inner{grid-template-columns:1fr;gap:34px}
 .hero .lead{max-width:none}
 .data-grid{grid-template-columns:repeat(2,1fr);gap:16px}
 .data-grid div:nth-child(2){border:0}
 .g4,.g6,.req-grid{grid-template-columns:repeat(2,1fr)}
 .article-wrap{grid-template-columns:1fr;padding-top:34px}
 .sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:16px}
 .sidebar .side-card:first-child{grid-column:1/-1}
 .article{padding:26px 22px}
 .article-body p{font-size:15.8px}
 .cta{padding:34px}
 .fcols{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
 .g2,.g3,.g4,.g6,.req-grid{grid-template-columns:1fr}
 .header-inner{gap:8px;height:68px}
 .logo{font-size:17px}
 .logo img{width:30px;height:30px}
 .nav-link{padding:0 7px;font-size:13.5px}
 .nav-link:after{left:7px;right:7px}
 .header-cta .btn{min-height:36px;padding:0 11px;font-size:12.5px}
 .plan.featured{transform:none}
 .hero-stats{grid-template-columns:repeat(3,1fr);gap:8px}
 .stat{padding:11px 10px}
 .stat b{font-size:20px}
 .stat span{font-size:11px}
 .sec-head{margin-bottom:32px}
 .article-head h1{font-size:24px}
 .post-nav{grid-template-columns:1fr}
 .sidebar{grid-template-columns:1fr}
 .article-body h2{font-size:20px}
 .prose{padding:24px 20px}
 .site-footer{padding:44px 0 22px}
}
@media(max-width:480px){
 .wrap{padding:0 16px}
 .hero{padding:116px 0 48px}
 .hero h1{font-size:28px}
 .hero-actions .btn{width:100%}
 .demo{padding:16px;border-radius:18px}
 .demo-nodes label{font-size:12px;padding:6px 10px}
 .node-vals strong{font-size:34px}
 .board{height:180px}
 .data-grid{grid-template-columns:1fr 1fr}
 .header-cta .btn{padding:6px 9px;font-size:12px}
 .header-inner{height:64px}
 .logo img{width:28px;height:28px}
 .site-header .logo span{display:none}
 .nav-link{padding:0 6px;font-size:12.5px}
 .nav-link:after{left:6px;right:6px;bottom:9px}
 .header-cta{display:none}
 .fcols{grid-template-columns:1fr}
 .article{padding:20px 16px}
 .comments .avatar{width:32px;height:32px;font-size:13px}
}