:root{
--brand:#2080f0;--brand-d:#1565d8;--brand-dd:#0e4fb4;--brand-l:#5ea8ff;--brand-soft:rgba(32,128,240,.10);
--gold:#f5a524;--gold-d:#cf8108;--gold-soft:rgba(245,165,36,.14);
--ink:#0a1220;--ink2:#101c30;--ink3:#16233a;
--text:#1b2433;--muted:#5b6b82;--line:#e3e9f2;--bg:#f6f8fc;--bg2:#eef3fb;--white:#fff;
--grad:linear-gradient(135deg,var(--brand) 0%,var(--brand-dd) 100%);
--grad-gold:linear-gradient(135deg,#ffc865 0%,var(--gold) 60%,var(--gold-d) 100%);
--r-s:8px;--r:12px;--r-l:18px;--r-xl:26px;
--sh-s:0 2px 8px rgba(15,32,58,.06);--sh:0 10px 28px rgba(15,32,58,.09);--sh-l:0 22px 54px rgba(15,32,58,.14);
--w:1180px;--head:68px;
--f:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--f);font-size:16px;line-height:1.75;color:var(--text);background:var(--white);overflow-x:hidden}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--brand-d);text-decoration:none}
a:hover{color:var(--brand-dd)}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.28;font-weight:800;letter-spacing:-.2px}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:var(--w);margin:0 auto;padding:0 20px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.sec{padding:84px 0}
.sec-tint{background:var(--bg)}
.sec-dark{background:var(--ink);color:#e8eefb}
.sec-dark h2,.sec-dark h3{color:#fff}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;color:var(--brand-d);background:var(--brand-soft);border-radius:999px;padding:5px 14px;margin-bottom:14px}
.sec-dark .eyebrow{color:#cfe4ff;background:rgba(94,168,255,.14)}
.sec-head{max-width:760px;margin:0 auto 48px;text-align:center}
.sec-head h2{font-size:36px;margin-bottom:14px}
.sec-head p{color:var(--muted);margin:0;font-size:17px}
.sec-dark .sec-head p{color:#a9bad4}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 26px;border-radius:999px;background:var(--grad);color:#fff;font-weight:700;font-size:16px;border:0;cursor:pointer;box-shadow:0 10px 22px rgba(21,101,216,.28);transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(21,101,216,.34)}
.btn-ghost{background:transparent;color:var(--brand-d);border:1.5px solid rgba(32,128,240,.42);box-shadow:none}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dd);box-shadow:none}
.sec-dark .btn-ghost{color:#eaf3ff;border-color:rgba(180,214,255,.5)}
.sec-dark .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-gold{background:var(--grad-gold);color:#2a1a00;box-shadow:0 10px 22px rgba(207,129,8,.25)}
.btn-gold:hover{color:#2a1a00}

.site-head{position:fixed;top:0;left:0;right:0;z-index:900;height:var(--head);background:rgba(10,18,32,.72);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.08);transition:background .25s,box-shadow .25s}
.site-head.scrolled{background:rgba(8,14,26,.94);box-shadow:0 8px 24px rgba(0,0,0,.28)}
.head-in{display:flex;align-items:center;gap:26px;height:var(--head)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:#fff;letter-spacing:.2px;flex:0 0 auto}
.brand:hover{color:#fff}
.brand img{width:32px;height:32px;border-radius:9px;background:#fff;padding:2px}
.nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-list>li{position:relative}
.nav-list>li>a,.sub-label{display:flex;align-items:center;gap:6px;min-height:40px;padding:0 14px;border-radius:10px;color:#dbe6f6;font-size:15px;font-weight:600;cursor:pointer;transition:background .2s,color .2s}
.nav-list>li>a:hover,.sub-label:hover,.has-sub:hover>.sub-label{background:rgba(255,255,255,.1);color:#fff}
.nav-list>li>a.active{color:#fff;background:rgba(32,128,240,.22)}
.sub-label i{font-style:normal;font-size:11px;transition:transform .25s;color:#9fb6d6}
.has-sub:hover>.sub-label i{transform:rotate(180deg)}
.sub-cb,.nav-toggle-cb{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.sub-menu{display:block;position:absolute;top:calc(100% + 8px);left:0;min-width:210px;background:#fff;border-radius:var(--r);box-shadow:var(--sh-l);padding:8px;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s,transform .2s,visibility .2s}
.has-sub:hover .sub-menu,.has-sub:focus-within .sub-menu{opacity:1;visibility:visible;transform:translateY(0)}
.sub-menu a{display:block;padding:9px 12px;border-radius:8px;color:#22334a;font-size:14.5px;font-weight:600}
.sub-menu a:hover{background:var(--brand-soft);color:var(--brand-dd)}
.head-cta{flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;background:rgba(255,255,255,.1);cursor:pointer;padding:11px 10px;margin-left:auto}
.nav-toggle span{display:block;height:2px;background:#fff;border-radius:2px;margin:5px 0;transition:transform .25s,opacity .25s}

.hero{position:relative;padding:calc(var(--head) + 64px) 0 84px;background:radial-gradient(1100px 620px at 82% -8%,rgba(32,128,240,.34),transparent 62%),radial-gradient(760px 460px at 6% 96%,rgba(245,165,36,.16),transparent 60%),linear-gradient(180deg,#0a1220 0%,#0d1a2e 58%,#0a1220 100%);color:#e9f1ff;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:64px 64px;mask-image:radial-gradient(circle at 55% 30%,#000 30%,transparent 78%);-webkit-mask-image:radial-gradient(circle at 55% 30%,#000 30%,transparent 78%);pointer-events:none}
.hero-in{position:relative;z-index:2;display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.hero h1{font-size:50px;line-height:1.16;margin-bottom:18px;color:#fff}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,#7fc0ff,#cfe6ff 55%,#ffd489);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:18px;color:#b9cbe2;max-width:520px;margin-bottom:28px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-btns .btn{min-width:170px}
.hero-data{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;border-top:1px solid rgba(255,255,255,.12);padding-top:24px}
.hero-data b{display:block;font-size:26px;color:#fff;letter-spacing:-.5px}
.hero-data span{font-size:13px;color:#9db2cd}

.demo{position:relative;background:linear-gradient(160deg,#16263f,#0b1526 70%);border:1px solid rgba(120,175,255,.24);border-radius:var(--r-xl);padding:20px;box-shadow:0 34px 70px rgba(0,0,0,.5);max-width:430px;margin-left:auto}
.demo::before{content:"";position:absolute;inset:-1px;border-radius:var(--r-xl);padding:1px;background:linear-gradient(140deg,rgba(94,168,255,.6),transparent 45%,rgba(245,165,36,.5));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.demo-bar{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:#9db2cd;margin-bottom:14px}
.demo-bar b{color:#dcebff;font-weight:600}
.live{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:#8ff0c4}
.live::before{content:"";width:7px;height:7px;border-radius:50%;background:#3fd68c;box-shadow:0 0 0 4px rgba(63,214,140,.16)}
.demo-total{font-size:13px;color:#9db2cd}
.demo-total strong{display:block;font-size:31px;color:#fff;letter-spacing:-.6px;line-height:1.3}
.demo-total em{font-style:normal;color:#3fd68c;font-size:13px;font-weight:700}
.chain-r{position:absolute;opacity:0;width:1px;height:1px;pointer-events:none}
.chain-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;background:rgba(255,255,255,.06);border-radius:12px;padding:5px;margin:16px 0 14px}
.chain-tabs label{display:flex;align-items:center;justify-content:center;min-height:38px;border-radius:9px;font-size:13px;font-weight:700;color:#a9bdd8;cursor:pointer;transition:background .2s,color .2s;text-align:center}
.chain-tabs label:hover{color:#fff;background:rgba(255,255,255,.08)}
.chain-p{display:none}
#ch1:checked~.chain-tabs label[for=ch1],#ch2:checked~.chain-tabs label[for=ch2],#ch3:checked~.chain-tabs label[for=ch3],#ch4:checked~.chain-tabs label[for=ch4]{background:var(--grad);color:#fff;box-shadow:0 6px 14px rgba(21,101,216,.32)}
#ch1:checked~.chain-panels .p1,#ch2:checked~.chain-panels .p2,#ch3:checked~.chain-panels .p3,#ch4:checked~.chain-panels .p4{display:block}
.asset{display:flex;align-items:center;gap:12px;padding:10px 2px;border-bottom:1px solid rgba(255,255,255,.07)}
.asset:last-child{border-bottom:0}
.asset .ico{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;color:#fff;flex:0 0 auto;background:rgba(255,255,255,.12)}
.asset .n{flex:1;min-width:0}
.asset .n b{display:block;font-size:14px;color:#eef5ff;font-weight:700}
.asset .n span{font-size:12px;color:#8ea4c2}
.asset .v{text-align:right;font-size:14px;color:#fff;font-weight:700}
.asset .v span{display:block;font-size:11.5px;font-weight:600;color:#3fd68c}
.asset .v span.dn{color:#ff8f8f}
.demo-acts{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:16px}
.demo-acts a{display:flex;flex-direction:column;align-items:center;gap:4px;padding:11px 4px;border-radius:12px;background:rgba(255,255,255,.07);color:#dbe9ff;font-size:12px;font-weight:700;transition:background .2s}
.demo-acts a:hover{background:rgba(32,128,240,.32);color:#fff}
.demo-acts span{font-size:16px}
.demo-foot{margin-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:11.5px;color:#8ea4c2;border-top:1px dashed rgba(255,255,255,.12);padding-top:11px}

.logos{border-top:1px solid rgba(255,255,255,.08);background:var(--ink2);padding:22px 0}
.logos ul{display:flex;flex-wrap:wrap;justify-content:center;gap:14px 44px;font-size:14px;font-weight:700;color:#8fa6c4;letter-spacing:.4px}
.logos li{display:flex;align-items:center;gap:8px}
.logos li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand-l)}

.grid{display:grid;gap:22px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r-l);padding:28px;box-shadow:var(--sh-s);transition:transform .25s,box-shadow .25s,border-color .25s;height:100%}
.card:hover{transform:translateY(-5px);box-shadow:var(--sh);border-color:rgba(32,128,240,.3)}
.card h3{font-size:19px;margin-bottom:8px}
.card p{margin:0;color:var(--muted);font-size:15px}
.card .em{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:14px;background:var(--brand-soft);font-size:22px;margin-bottom:16px}
.sec-dark .card{background:rgba(255,255,255,.045);border-color:rgba(255,255,255,.1);box-shadow:none}
.sec-dark .card p{color:#a9bad4}
.sec-dark .card .em{background:rgba(32,128,240,.2)}

.chain-card{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;box-shadow:var(--sh-s);transition:transform .22s,box-shadow .22s}
.chain-card:hover{transform:translateY(-4px);box-shadow:var(--sh)}
.chain-card .sym{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;color:#fff;background:var(--grad);flex:0 0 auto}
.chain-card:nth-child(3n+2) .sym{background:linear-gradient(135deg,#6b7cff,#3b4bc8)}
.chain-card:nth-child(3n) .sym{background:linear-gradient(135deg,var(--gold),var(--gold-d));color:#2a1a00}
.chain-card b{display:block;font-size:15.5px;color:var(--text)}
.chain-card span{font-size:12.5px;color:var(--muted)}

.split{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.split h2{font-size:34px}
.checklist li{position:relative;padding-left:34px;margin-bottom:14px;color:#c6d6e9;font-size:15.5px}
.checklist li b{color:#fff}
.checklist li::before{content:"✓";position:absolute;left:0;top:1px;width:22px;height:22px;border-radius:50%;background:rgba(63,214,140,.16);color:#5ce3a2;font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center}
.meter{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--r-l);padding:26px}
.meter-row{display:flex;justify-content:space-between;font-size:13.5px;color:#a9bad4;margin-bottom:8px}
.meter-row b{color:#fff}
.bar{height:8px;border-radius:99px;background:rgba(255,255,255,.1);overflow:hidden;margin-bottom:20px}
.bar i{display:block;height:100%;border-radius:99px;background:var(--grad)}
.bar i.gold{background:var(--grad-gold)}

.steps{counter-reset:s}
.step{position:relative;padding-top:18px}
.step::before{counter-increment:s;content:"0" counter(s);display:block;font-size:34px;font-weight:800;color:rgba(32,128,240,.22);line-height:1;margin-bottom:10px;letter-spacing:-2px}
.step h3{font-size:18px}
.step p{color:var(--muted);font-size:15px;margin:0}

.plans{align-items:stretch}
.plan{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-l);padding:30px 26px;display:flex;flex-direction:column;box-shadow:var(--sh-s);transition:transform .25s,box-shadow .25s}
.plan:hover{transform:translateY(-5px);box-shadow:var(--sh)}
.plan.hot{border:2px solid var(--brand);box-shadow:0 22px 50px rgba(21,101,216,.18);transform:translateY(-8px)}
.plan.hot:hover{transform:translateY(-12px)}
.plan .tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12px;font-weight:700;padding:4px 16px;border-radius:99px;letter-spacing:.5px}
.plan h3{font-size:19px;margin-bottom:4px}
.plan .desc{color:var(--muted);font-size:13.5px;margin-bottom:16px}
.price{font-size:38px;font-weight:800;letter-spacing:-1px;line-height:1.1;margin-bottom:4px}
.price small{font-size:14px;font-weight:600;color:var(--muted);letter-spacing:0}
.plan>ul{margin:18px 0 24px;flex:1}
.plan>ul li{position:relative;padding-left:24px;margin-bottom:10px;font-size:14.5px;color:#33455e}
.plan>ul li::before{content:"›";position:absolute;left:6px;top:-1px;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:var(--r);margin-bottom:12px;box-shadow:var(--sh-s);overflow:hidden}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-weight:700;font-size:16.5px;cursor:pointer;list-style:none;color:var(--text)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;font-weight:400;color:var(--brand);transition:transform .25s;flex:0 0 auto}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details[open] summary{color:var(--brand-dd);background:rgba(32,128,240,.05)}
.faq .ans{padding:0 24px 22px;color:var(--muted);font-size:15px}
.faq .ans p{margin:0 0 8px}
.faq .ans ol{counter-reset:f;margin:6px 0 0}
.faq .ans ol li{position:relative;padding-left:28px;margin-bottom:6px;counter-increment:f}
.faq .ans ol li::before{content:counter(f);position:absolute;left:0;top:2px;width:19px;height:19px;border-radius:50%;background:var(--brand-soft);color:var(--brand-dd);font-size:11.5px;font-weight:800;display:flex;align-items:center;justify-content:center}

.quote{background:#fff;border:1px solid var(--line);border-radius:var(--r-l);padding:28px;box-shadow:var(--sh-s);position:relative}
.quote::before{content:"“";position:absolute;top:6px;right:22px;font-size:64px;line-height:1;color:rgba(32,128,240,.16);font-family:Georgia,serif}
.quote .stars{color:var(--gold);font-size:14px;letter-spacing:2px;margin-bottom:10px}
.quote p{font-size:15.5px;color:#33455e}
.who{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:16px;margin-top:4px}
.avatar{width:42px;height:42px;border-radius:50%;background:var(--grad);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;flex:0 0 auto;font-size:16px}
.who b{display:block;font-size:14.5px}
.who span{font-size:12.5px;color:var(--muted)}

.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-l);overflow:hidden;box-shadow:var(--sh-s);transition:transform .25s,box-shadow .25s;height:100%}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--sh)}
.news-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg2)}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.news-card:hover .thumb img{transform:scale(1.04)}
.news-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-card time{font-size:12.5px;color:var(--muted);margin-bottom:8px}
.news-card h3{font-size:17px;line-height:1.5;margin-bottom:8px}
.news-card h3 a{color:var(--text)}
.news-card h3 a:hover{color:var(--brand-dd)}
.news-card p{font-size:14px;color:var(--muted);margin:0 0 14px;flex:1}
.more{font-size:14px;font-weight:700;color:var(--brand-d)}
.chip{display:inline-block;font-size:12px;font-weight:700;color:var(--brand-dd);background:var(--brand-soft);border-radius:99px;padding:3px 11px;margin-bottom:10px;align-self:flex-start}

.cta-band{background:linear-gradient(135deg,#0a1220 0%,#10305c 52%,#0a1220 100%);color:#fff;padding:74px 0;text-align:center;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(32,128,240,.4),transparent 68%);top:-220px;left:-120px}
.cta-band::after{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(245,165,36,.24),transparent 68%);bottom:-200px;right:-100px}
.cta-band .wrap{position:relative;z-index:2}
.cta-band h2{font-size:36px;color:#fff;margin-bottom:14px}
.cta-band p{color:#bacde5;max-width:600px;margin:0 auto 28px}
.cta-band .btn-gold{min-width:210px}

.site-foot{background:#07101c;color:#93a7c1;padding:64px 0 28px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
.site-foot h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.4px}
.site-foot a{color:#93a7c1;display:inline-block;padding:4px 0}
.site-foot a:hover{color:#fff}
.site-foot .brand{margin-bottom:14px}
.site-foot p{color:#7e93ae;font-size:13.5px;max-width:300px}
.foot-bot{border-top:1px solid rgba(255,255,255,.08);padding-top:22px;display:flex;flex-wrap:wrap;gap:12px 26px;justify-content:space-between;align-items:center;font-size:13px;color:#7e93ae}
.foot-bot ul{display:flex;flex-wrap:wrap;gap:18px}
.to-top{position:fixed;right:20px;bottom:24px;width:46px;height:46px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;box-shadow:var(--sh);z-index:800;transition:transform .2s}
.to-top:hover{color:#fff;transform:translateY(-3px)}

.page-hero{padding:calc(var(--head) + 56px) 0 56px;background:radial-gradient(900px 460px at 78% -10%,rgba(32,128,240,.36),transparent 62%),linear-gradient(180deg,#0a1220,#0d1a2e);color:#e9f1ff}
.page-hero h1{font-size:42px;color:#fff;margin-bottom:14px}
.page-hero p{color:#b9cbe2;max-width:720px;margin:0}
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:#9db2cd;margin-bottom:18px}
.crumb a{color:#cfe0f5}
.crumb a:hover{color:#fff}
.crumb span{color:#7f95b3}

.dl-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.dl-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-l);padding:26px;box-shadow:var(--sh-s);display:flex;flex-direction:column}
.dl-card .top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:14px}
.dl-card h3{font-size:20px;margin:0}
.dl-card .meta{font-size:13px;color:var(--muted)}
.dl-card ul{margin:0 0 20px;flex:1}
.dl-card ul li{position:relative;padding-left:22px;font-size:14.5px;color:#33455e;margin-bottom:8px}
.dl-card ul li::before{content:"✓";position:absolute;left:0;color:#2aa06a;font-weight:800}
.dl-note{background:var(--gold-soft);border:1px solid rgba(245,165,36,.35);border-radius:var(--r);padding:16px 20px;font-size:14px;color:#7a5207}
table.spec{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
table.spec th,table.spec td{padding:15px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line)}
table.spec th{background:var(--bg2);font-weight:700;color:#22334a;width:210px}
table.spec tr:last-child th,table.spec tr:last-child td{border-bottom:0}

.list-head{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.list-head a,.list-head b{font-size:13.5px;font-weight:700;padding:7px 16px;border-radius:99px;border:1px solid var(--line);background:#fff;color:#3c5069}
.list-head b{background:var(--grad);color:#fff;border-color:transparent}
.list-head a:hover{border-color:var(--brand);color:var(--brand-dd)}

.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;align-items:start;padding:48px 0 84px}
.article{min-width:0}
.article h1{font-size:33px;line-height:1.35;margin-bottom:18px}
.art-meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--muted);padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:26px}
.art-meta b{color:var(--brand-dd);font-weight:700}
.article .lead{font-size:17.5px;color:#2c3e57;background:var(--bg);border-left:4px solid var(--brand);border-radius:0 var(--r) var(--r) 0;padding:20px 24px;margin-bottom:26px}
.article h2{font-size:25px;margin:38px 0 14px;padding-left:14px;border-left:4px solid var(--brand);scroll-margin-top:calc(var(--head) + 18px)}
.article h3{font-size:19px;margin:26px 0 10px}
.article p{font-size:16.5px;color:#2a3a50;line-height:1.95;margin-bottom:18px}
.article img{border-radius:var(--r);margin:8px 0 12px;box-shadow:var(--sh-s)}
.article figcaption{font-size:13px;color:var(--muted);text-align:center;margin-bottom:26px}
.article blockquote{margin:26px 0;padding:20px 24px;background:var(--brand-soft);border-radius:var(--r);color:#20344f;font-size:16px;border:0}
.article blockquote p:last-child{margin:0}
.article blockquote cite{display:block;font-style:normal;font-size:13.5px;color:var(--brand-dd);font-weight:700;margin-top:8px}
.inline-cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;background:linear-gradient(135deg,#0e2545,#123b6e);color:#dce9fb;border-radius:var(--r-l);padding:24px 28px;margin:34px 0}
.inline-cta b{font-size:17px;color:#fff;display:block}
.inline-cta span{font-size:13.5px;color:#a9c2e0}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:36px 0 8px}
.pager a{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;font-size:14.5px;color:#22334a;box-shadow:var(--sh-s)}
.pager a:hover{border-color:var(--brand);color:var(--brand-dd)}
.pager span{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
.pager .next{text-align:right}
.back-list{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;margin-top:8px}
.related{margin-top:44px;padding-top:30px;border-top:1px solid var(--line)}
.related h2{font-size:21px;border:0;padding:0;margin:0 0 18px}
.related ul li{padding:12px 0;border-bottom:1px dashed var(--line);font-size:15px}
.related ul li:last-child{border-bottom:0}
.related a{color:#22334a;font-weight:600}
.related a:hover{color:var(--brand-dd)}
.comments{margin-top:44px;padding-top:30px;border-top:1px solid var(--line)}
.comments h2{font-size:21px;border:0;padding:0;margin:0 0 20px}
.cmt{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line)}
.cmt:last-child{border-bottom:0}
.cmt .avatar{width:40px;height:40px;font-size:15px}
.cmt .c-body{flex:1;min-width:0}
.cmt .c-head{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:6px}
.cmt .c-head b{font-size:14.5px}
.cmt .c-head time{font-size:12px;color:var(--muted)}
.cmt p{margin:0;font-size:15px;color:#33455e}
.starline{color:var(--gold);font-size:12.5px;letter-spacing:1px}

.sidebar{position:sticky;top:calc(var(--head) + 20px);display:grid;gap:18px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-l);padding:20px;box-shadow:var(--sh-s)}
.side-card h3{font-size:15.5px;margin:0 0 16px;padding-left:11px;border-left:3px solid var(--brand);line-height:1.2}
.toc{position:relative;padding-left:18px}
.toc::before{content:"";position:absolute;left:4px;top:6px;bottom:6px;width:2px;background:var(--line);border-radius:2px}
.toc li{position:relative;margin-bottom:12px;font-size:14px}
.toc li::before{content:"";position:absolute;left:-18px;top:8px;width:8px;height:8px;border-radius:50%;background:#fff;border:2px solid #c3d3e8}
.toc a{color:#3c5069;font-weight:600;display:block;line-height:1.55}
.toc a:hover{color:var(--brand-dd)}
.toc li.active::before{border-color:var(--brand);background:var(--brand)}
.toc li.active a{color:var(--brand-dd);font-weight:800}
.hot li{display:flex;gap:10px;align-items:flex-start;padding:9px 0;border-bottom:1px dashed var(--line);font-size:14px;line-height:1.6}
.hot li:last-child{border-bottom:0}
.hot .rank{width:22px;height:22px;border-radius:6px;background:#e7edf6;color:#5b6b82;font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;flex:0 0 auto;margin-top:2px;transition:transform .2s}
.hot li:nth-child(1) .rank{background:var(--grad);color:#fff}
.hot li:nth-child(2) .rank{background:var(--grad-gold);color:#2a1a00}
.hot li:nth-child(3) .rank{background:linear-gradient(135deg,#f7d488,#d9a53a);color:#2a1a00}
.hot li:hover .rank{transform:scale(1.12)}
.hot a{color:#33455e;font-weight:600}
.hot li:hover a{color:var(--brand-dd)}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tags a{font-size:12.5px;font-weight:700;padding:5px 12px;border-radius:99px;border:1px solid var(--line);color:#4a5e78;background:#fbfcfe}
.tags a:hover{border-color:var(--brand);color:var(--brand-dd);background:var(--brand-soft)}

.map-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.map-grid ul li a{display:block;padding:5px 0;font-size:14.5px;color:#33455e}
.map-grid ul li a:hover{color:var(--brand-dd)}
.err-wrap{min-height:78vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:calc(var(--head) + 40px) 20px 60px;background:radial-gradient(700px 420px at 50% 0%,rgba(32,128,240,.22),transparent 65%),#0a1220;color:#dce9fb}
.err-code{font-size:110px;font-weight:800;line-height:1;letter-spacing:-4px;background:linear-gradient(120deg,#7fc0ff,#ffd489);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:10px}
.err-wrap h1{font-size:30px;color:#fff}
.err-wrap p{color:#a9bad4;max-width:520px;margin:0 auto 26px}
.prose{max-width:860px}
.prose h2{font-size:24px;margin:34px 0 12px;padding-left:14px;border-left:4px solid var(--brand)}
.prose h3{font-size:18px;margin:22px 0 8px}
.prose p,.prose li{font-size:15.5px;color:#2f4157;line-height:1.9}
.prose ul{list-style:disc;padding-left:22px;margin-bottom:16px}
.prose ul li{margin-bottom:8px}
.prose table{width:100%;border-collapse:collapse;margin:18px 0 24px;font-size:14.5px}
.prose th,.prose td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.prose th{background:var(--bg2)}

html.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
html.js .reveal.in{opacity:1;transform:none}

@media (max-width:1200px){
.hero h1{font-size:43px}
.demo{max-width:400px}
}
@media (max-width:992px){
:root{--head:62px}
.sec{padding:64px 0}
.hero{padding:calc(var(--head) + 44px) 0 64px}
.hero-in{grid-template-columns:1fr;gap:40px}
.hero h1{font-size:36px}
.hero-sub{max-width:none}
.demo{margin:0 auto;max-width:460px}
.g4{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(2,1fr)}
.split{grid-template-columns:1fr;gap:34px}
.split h2{font-size:28px}
.sec-head h2{font-size:29px}
.article-wrap{grid-template-columns:1fr;gap:30px;padding:34px 0 64px}
.sidebar{position:static}
.article h1{font-size:27px}
.article h2{font-size:22px}
.page-hero h1{font-size:32px}
.foot-grid{grid-template-columns:1fr 1fr;gap:32px}
.map-grid{grid-template-columns:repeat(2,1fr)}
.nav-toggle{display:block}
.head-cta{display:none}
.nav{position:fixed;top:var(--head);left:0;right:0;max-height:calc(100vh - var(--head));overflow-y:auto;background:#0b1626;border-bottom:1px solid rgba(255,255,255,.1);padding:12px 18px 22px;display:none}
.nav-toggle-cb:checked~.nav{display:block}
.nav-toggle-cb:checked~.nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle-cb:checked~.nav-toggle span:nth-child(2){opacity:0}
.nav-toggle-cb:checked~.nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-list{display:block}
.nav-list>li{margin-bottom:4px}
.nav-list>li>a,.sub-label{font-size:16px;padding:12px 14px;border-radius:10px;background:rgba(255,255,255,.05);justify-content:space-between}
.sub-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:rgba(255,255,255,.04);display:none;margin-top:6px;padding:6px}
.sub-cb:checked~.sub-menu{display:block}
.sub-cb:checked~.sub-label i{transform:rotate(180deg)}
.sub-menu a{color:#c9dbf2;padding:10px 14px}
.sub-menu a:hover{background:rgba(32,128,240,.24);color:#fff}
.plan.hot{transform:none}
.plan.hot:hover{transform:translateY(-5px)}
.dl-grid{grid-template-columns:1fr}
.pager{grid-template-columns:1fr}
.pager .next{text-align:left}
}
@media (max-width:768px){
.hero h1{font-size:30px}
.hero-data{grid-template-columns:1fr;gap:12px;padding-top:18px}
.hero-data b{font-size:23px}
.g3,.g4,.g2{grid-template-columns:1fr}
.sec-head h2{font-size:25px}
.sec-head p{font-size:15.5px}
.btn{width:100%;max-width:360px}
.hero-btns{flex-direction:column;align-items:stretch}
.hero-btns .btn{max-width:none}
.chain-tabs{grid-template-columns:repeat(2,1fr)}
.article .lead{font-size:16px;padding:16px 18px}
.article p{font-size:16px}
.foot-grid{grid-template-columns:1fr;gap:26px}
.cta-band h2{font-size:26px}
.inline-cta{padding:20px}
.pager a{text-align:left}
}
@media (max-width:480px){
.wrap{padding:0 16px}
.sec{padding:52px 0}
.hero h1{font-size:26px}
.hero-sub{font-size:16px}
.demo{padding:16px;border-radius:20px}
.demo-total strong{font-size:26px}
.chain-tabs label{font-size:12px;min-height:36px}
.demo-acts{grid-template-columns:repeat(3,1fr)}
.article h1{font-size:23px}
.article h2{font-size:20px}
.err-code{font-size:76px}
.page-hero h1{font-size:26px}
table.spec th{width:auto}
.side-card{padding:16px}
.card{padding:22px}
.plan{padding:24px 20px}
.foot-bot{flex-direction:column;align-items:flex-start}
}