:root{--brand:#1655ff;--brand2:#00b3a4;--brand3:#0b2a6b;--ink:#0b1a33;--muted:#5b6b85;--line:#e4eaf5;--bg:#f5f8ff;--card:#fff;--shadow:0 10px 30px rgba(17,47,110,.08);--radius:16px}
*{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","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;font-size:16px}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
.wrap{width:min(1200px,92%);margin:0 auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:12px;font-weight:600;font-size:15px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 8px 20px rgba(22,85,255,.28);transition:transform .2s,box-shadow .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(22,85,255,.36)}
.btn.ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55);box-shadow:none}
.btn.ghost:hover{background:rgba(255,255,255,.12)}
.btn.line{background:#fff;color:var(--brand);border:1.5px solid var(--brand);box-shadow:none}
.btn.sm{padding:9px 16px;font-size:13px;border-radius:10px}
.tag{display:inline-block;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;background:rgba(22,85,255,.1);color:var(--brand)}
/* header */
.hd{position:fixed;inset:0 0 auto 0;z-index:90;background:rgba(255,255,255,.86);backdrop-filter:blur(14px);border-bottom:1px solid rgba(228,234,245,.9);transition:background .3s,box-shadow .3s}
.hd.solid{background:rgba(255,255,255,.96);box-shadow:0 6px 24px rgba(11,42,107,.08)}
.hd .wrap{display:flex;align-items:center;gap:18px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:.3px}
.logo img{width:34px;height:34px;object-fit:contain}
.logo b{color:var(--brand)}
.nav{display:flex;align-items:center;gap:4px;margin-left:14px;flex:1}
.nav-group{position:relative}
.nav-lnk,.ddlbl{display:flex;align-items:center;gap:5px;padding:10px 14px;border-radius:10px;font-size:15px;font-weight:500;cursor:pointer;transition:color .2s,background .2s}
.nav-lnk:hover,.ddlbl:hover{color:var(--brand);background:rgba(22,85,255,.07)}
.nav-lnk.on{color:var(--brand);font-weight:700}
.ddchk{position:absolute;opacity:0;width:1px;height:1px}
.ddlbl::after{content:"▾";font-size:11px;transition:transform .25s}
.ddm{position:absolute;top:calc(100% + 8px);left:0;min-width:210px;background:#fff;border-radius:14px;box-shadow:0 18px 40px rgba(11,42,107,.14);padding:8px;display:none;border:1px solid var(--line)}
.ddm a{display:block;padding:10px 14px;border-radius:9px;font-size:14px;color:#33415c}
.ddm a:hover{background:var(--bg);color:var(--brand)}
.nav-group:hover .ddm{display:block}
.nav-group:hover .ddlbl::after{transform:rotate(180deg)}
.ddchk:checked~.ddm{display:block}
.ddchk:checked~.ddlbl::after{transform:rotate(180deg)}
.nav-cta{display:flex;align-items:center;gap:10px}
.burger{display:none;width:44px;height:44px;align-items:center;justify-content:center;font-size:22px;border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer}
.navtog{position:absolute;opacity:0;width:1px;height:1px}
/* hero */
.hero{position:relative;padding:132px 0 78px;background:radial-gradient(1200px 520px at 82% 8%,rgba(0,179,164,.34),transparent 62%),radial-gradient(900px 500px at 8% 90%,rgba(22,85,255,.4),transparent 60%),linear-gradient(140deg,#071a3c 0%,#0b2a6b 52%,#081f4d 100%);color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:54px 54px;mask-image:radial-gradient(circle at 60% 30%,#000,transparent 72%);pointer-events:none}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.hero h1{font-size:46px;line-height:1.22;letter-spacing:-.5px;margin:16px 0 18px}
.hero h1 em{font-style:normal;background:linear-gradient(120deg,#7ef7d8,#7fb2ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{font-size:17px;color:rgba(232,241,255,.86);max-width:560px}
.hero-btns{display:flex;gap:14px;margin:28px 0 30px;flex-wrap:wrap}
.hero-stats{display:flex;gap:34px;flex-wrap:wrap;padding-top:22px;border-top:1px solid rgba(255,255,255,.16)}
.hero-stats div b{display:block;font-size:26px;letter-spacing:-.5px;color:#fff}
.hero-stats div span{font-size:13px;color:rgba(225,237,255,.7)}
.hero .tag{background:rgba(126,247,216,.14);color:#8ff3dc}
/* demo */
.demo{background:linear-gradient(160deg,#fff,#eef4ff);border-radius:18px;overflow:hidden;box-shadow:0 30px 70px rgba(3,15,40,.45);border:1px solid rgba(255,255,255,.7);color:var(--ink);font-size:13px}
.demo-bar{display:flex;align-items:center;gap:7px;padding:10px 14px;background:#f2f6ff;border-bottom:1px solid var(--line)}
.demo-bar i{width:9px;height:9px;border-radius:50%;background:#dfe7f7;display:block}
.demo-bar i:nth-child(1){background:#ff6b6b}.demo-bar i:nth-child(2){background:#ffc94d}.demo-bar i:nth-child(3){background:#35d07f}
.demo-bar span{margin-left:10px;font-size:11px;color:#7b8aa3;background:#fff;padding:3px 12px;border-radius:7px;border:1px solid var(--line)}
.demo-body{position:relative;display:grid;grid-template-columns:104px 1fr;min-height:318px}
.dv{position:absolute;opacity:0;pointer-events:none}
.demo-side{background:#f7f9ff;border-right:1px solid var(--line);padding:12px 8px;display:flex;flex-direction:column;gap:4px}
.demo-side label{padding:8px 9px;border-radius:8px;font-size:12px;color:#5b6b85;cursor:pointer;display:flex;gap:6px;align-items:center;transition:.2s;min-height:32px}
.demo-side label:hover{background:#e9effc;color:var(--brand)}
.demo-main{padding:14px 16px;overflow:hidden}
.dpanel{display:none}
.dpanel h4{font-size:12px;font-weight:600;color:#7b8aa3;margin-bottom:8px}
.dkpi{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px}
.dkpi div{background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px 10px}
.dkpi b{display:block;font-size:17px;color:var(--brand3)}
.dkpi span{font-size:10.5px;color:#7b8aa3}
.bars{display:flex;align-items:flex-end;gap:7px;height:92px;padding:8px 10px;background:#fff;border:1px solid var(--line);border-radius:10px}
.bars div{flex:1;display:flex;flex-direction:column;justify-content:flex-end;height:100%;gap:4px}
.bars i{display:block;border-radius:5px 5px 2px 2px;background:linear-gradient(180deg,#4d8bff,#1655ff)}
.bars div:nth-child(2n) i{background:linear-gradient(180deg,#5ce0cd,#00b3a4)}
.bars em{font-style:normal;font-size:9px;color:#93a1b8;text-align:center}
.drow{display:grid;grid-template-columns:1fr auto auto;gap:8px;align-items:center;padding:7px 10px;background:#fff;border:1px solid var(--line);border-radius:9px;margin-top:6px;font-size:11px}
.drow b{font-weight:600}
.drow em{font-style:normal;color:#00a58f;font-weight:700}
.dtag{font-size:10px;padding:1px 7px;border-radius:5px;background:#eef3ff;color:#1655ff;font-weight:600}
.dtag.w{background:#fff3e6;color:#d97706}.dtag.t{background:#eafaf7;color:#00937f}
.dbar{height:6px;border-radius:4px;background:#e8eefb;overflow:hidden;margin:4px 0 9px}
.dbar i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand2))}
#dv1:checked~.demo-side label[for=dv1],#dv2:checked~.demo-side label[for=dv2],#dv3:checked~.demo-side label[for=dv3],#dv4:checked~.demo-side label[for=dv4]{background:#1655ff;color:#fff;box-shadow:0 6px 14px rgba(22,85,255,.25)}
#dv1:checked~.demo-main .p1,#dv2:checked~.demo-main .p2,#dv3:checked~.demo-main .p3,#dv4:checked~.demo-main .p4{display:block}
/* sections */
.sec{padding:76px 0}
.sec.alt{background:#fff}
.sec-h{max-width:760px;margin:0 auto 44px;text-align:center}
.sec-h h2{font-size:33px;line-height:1.3;letter-spacing:-.4px;margin:12px 0 12px}
.sec-h p{color:var(--muted);font-size:15.5px}
.grid{display:grid;gap:20px}
.g4{grid-template-columns:repeat(4,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s,border-color .25s}
.card:hover{transform:translateY(-5px);box-shadow:0 18px 38px rgba(17,47,110,.14);border-color:#cddcff}
.card .ic{width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;font-size:22px;background:linear-gradient(140deg,rgba(22,85,255,.12),rgba(0,179,164,.14));margin-bottom:14px}
.card h3{font-size:17.5px;margin-bottom:8px}
.card p{font-size:14px;color:var(--muted)}
.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;text-align:center}
.stats div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 12px;box-shadow:var(--shadow)}
.stats b{display:block;font-size:30px;letter-spacing:-1px;background:linear-gradient(120deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
.stats span{font-size:13px;color:var(--muted)}
.plat{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.plat div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 14px;display:flex;align-items:center;gap:10px;font-weight:600;font-size:14.5px;box-shadow:0 4px 14px rgba(17,47,110,.05)}
.plat div span{width:30px;height:30px;border-radius:9px;background:var(--bg);display:flex;align-items:center;justify-content:center;font-size:16px}
.scene{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:.25s}
.scene:hover{transform:translateY(-4px);border-color:#cddcff}
.scene i{font-style:normal;font-size:13px;font-weight:700;color:var(--brand);letter-spacing:1px}
.scene h3{font-size:17px;margin:8px 0 8px}
.scene p{font-size:14px;color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:s}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px 24px;box-shadow:var(--shadow)}
.step::before{counter-increment:s;content:"0" counter(s);position:absolute;top:-18px;left:22px;font-size:26px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand2));width:52px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:12px;box-shadow:0 8px 18px rgba(22,85,255,.25)}
.step h3{font-size:17px;margin:14px 0 8px}
.step p{font-size:14px;color:var(--muted)}
.price{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.plan{background:#fff;border:1px solid var(--line);border-radius:18px;padding:30px 26px;box-shadow:var(--shadow);display:flex;flex-direction:column;position:relative;transition:.25s}
.plan:hover{transform:translateY(-5px)}
.plan.hot{border:2px solid var(--brand);box-shadow:0 22px 48px rgba(22,85,255,.18);transform:translateY(-8px)}
.plan.hot:hover{transform:translateY(-12px)}
.plan .badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-size:12px;font-weight:700;padding:5px 16px;border-radius:999px;white-space:nowrap}
.plan h3{font-size:18px;margin-bottom:4px}
.plan .desc{font-size:13px;color:var(--muted);min-height:42px}
.plan .p{font-size:34px;font-weight:800;letter-spacing:-1px;margin:10px 0 2px}
.plan .p small{font-size:14px;font-weight:500;color:var(--muted)}
.plan ul{margin:18px 0 24px;display:grid;gap:9px}
.plan li{font-size:13.5px;color:#3c4a63;padding-left:24px;position:relative}
.plan li::before{content:"✓";position:absolute;left:0;top:0;color:var(--brand2);font-weight:800}
.plan .btn{margin-top:auto;width:100%}
/* faq */
.faq{max-width:900px;margin:0 auto;display:grid;gap:12px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:13px;box-shadow:0 6px 18px rgba(17,47,110,.05);overflow:hidden}
.faq summary{list-style:none;cursor:pointer;padding:18px 52px 18px 22px;font-weight:600;font-size:15.5px;position:relative;display:block}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:20px;color:var(--brand);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq details[open] summary{color:var(--brand);background:#fafcff}
.faq .ans{padding:0 22px 20px;font-size:14.5px;color:var(--muted)}
.faq .ans ol{list-style:decimal;margin:8px 0 0 18px;display:grid;gap:4px}
/* testimonials */
.quote{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px}
.quote p{font-size:14.5px;color:#2e3d57}
.quote .who{display:flex;align-items:center;gap:10px;margin-top:auto}
.avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:none}
.who b{font-size:14px;display:block}
.who span{font-size:12px;color:var(--muted)}
.stars{color:#f5a524;font-size:13px;letter-spacing:2px}
/* news cards */
.ncard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.25s;display:flex;flex-direction:column}
.ncard:hover{transform:translateY(-5px);box-shadow:0 18px 38px rgba(17,47,110,.14)}
.ncard img{width:100%;aspect-ratio:16/9;object-fit:cover}
.ncard .bd{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.ncard h3{font-size:16px;line-height:1.5}
.ncard p{font-size:13.5px;color:var(--muted)}
.ncard .mt{font-size:12px;color:#93a1b8;margin-top:auto}
/* cta */
.cta{background:linear-gradient(130deg,#071a3c,#0b2a6b 55%,#0a3f6b);color:#fff;border-radius:24px;padding:52px 40px;text-align:center;position:relative;overflow:hidden}
.cta h2{font-size:30px;margin-bottom:12px}
.cta p{color:rgba(230,240,255,.82);max-width:640px;margin:0 auto 26px}
/* footer */
.ft{background:#07182f;color:#c3d1e6;padding:60px 0 22px;font-size:14px}
.ft-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1)}
.ft .logo{color:#fff;margin-bottom:14px}
.ft .logo img{background:#fff;border-radius:9px;padding:3px}
.ft p{color:#8fa3bf;font-size:13.5px;line-height:1.8}
.ft h4{color:#fff;font-size:15px;margin-bottom:14px}
.ft li{margin-bottom:9px}
.ft a:hover{color:#7ef7d8}
.ft-btm{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding-top:20px;font-size:13px;color:#8398b5}
.ft-btm .lk{display:flex;gap:16px;flex-wrap:wrap}
#top{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;border:0;font-size:18px;cursor:pointer;box-shadow:0 10px 24px rgba(22,85,255,.35);opacity:0;pointer-events:none;transition:.25s;z-index:80}
#top.show{opacity:1;pointer-events:auto}
/* page hero */
.phero{background:linear-gradient(135deg,#071a3c,#0b2a6b 60%,#093a5e);color:#fff;padding:118px 0 54px;position:relative;overflow:hidden}
.phero::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:52px 52px;pointer-events:none}
.phero .wrap{position:relative;z-index:2}
.phero h1{font-size:38px;line-height:1.3;margin:14px 0 12px}
.phero p{color:rgba(230,240,255,.84);max-width:720px;font-size:15.5px}
.crumb{font-size:13px;color:rgba(222,235,255,.75);display:flex;gap:8px;flex-wrap:wrap}
.crumb a:hover{color:#fff}
/* breadcrumb bar */
.bcbar{background:#fff;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.bcbar .wrap{padding:12px 0;display:flex;gap:8px;flex-wrap:wrap}
.bcbar a:hover{color:var(--brand)}
/* page content */
.page{padding:52px 0 76px}
.prose{background:#fff;border:1px solid var(--line);border-radius:18px;padding:40px;box-shadow:var(--shadow);max-width:940px;margin:0 auto}
.prose h2{font-size:22px;margin:26px 0 12px}
.prose h3{font-size:17px;margin:20px 0 8px}
.prose p{margin-bottom:13px;color:#33415c;font-size:15px}
.prose ul{list-style:disc;margin:8px 0 14px 22px;color:#33415c;font-size:15px;display:grid;gap:6px}
.prose .upd{font-size:13px;color:var(--muted);padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:20px}
/* news list */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.filters a{padding:7px 15px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:#41506b}
.filters a:hover{border-color:var(--brand);color:var(--brand)}
.filters a.on{background:var(--brand);color:#fff;border-color:var(--brand)}
/* article */
.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:34px;align-items:start;padding:40px 0 76px}
.article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:38px 40px;box-shadow:var(--shadow);min-width:0}
.article h1{font-size:30px;line-height:1.4;letter-spacing:-.3px;margin:10px 0 14px}
.art-meta{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--muted);padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:20px}
.article h2{font-size:22px;margin:30px 0 12px;padding-left:12px;border-left:4px solid var(--brand);line-height:1.4}
.article h3{font-size:17px;margin:18px 0 8px}
.article p{font-size:15.5px;color:#2f3d56;margin-bottom:14px}
.article figure{margin:20px 0}
.article figure img{border-radius:12px;width:100%;aspect-ratio:2/1;object-fit:cover}
.article figcaption{font-size:12.5px;color:var(--muted);margin-top:7px;text-align:center}
.lede{font-size:15.5px;background:#f7faff;border-left:4px solid var(--brand2);padding:16px 18px;border-radius:0 10px 10px 0;color:#26364f}
.kdata{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}
.kdata div{background:linear-gradient(150deg,#f2f7ff,#eafaf7);border:1px solid var(--line);border-radius:12px;padding:14px}
.kdata b{display:block;font-size:21px;color:var(--brand3)}
.kdata span{font-size:12px;color:var(--muted)}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:30px 0 0}
.pager a{background:#f8faff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;font-size:13.5px;transition:.2s}
.pager a b{display:block;font-size:11.5px;color:#93a1b8;font-weight:500;margin-bottom:4px}
.pager a:hover{border-color:var(--brand);color:var(--brand)}
.related{margin-top:26px}
.related h3{font-size:16px;margin-bottom:12px}
.related ul{display:grid;gap:8px}
.related a{font-size:14px;color:#2b7fff;display:inline-flex;gap:8px}
.related a::before{content:"›";color:var(--brand2);font-weight:700}
/* sidebar */
.side{position:sticky;top:88px;display:grid;gap:18px}
.scard{background:#fff;border:1px solid var(--line);border-radius:15px;padding:20px;box-shadow:var(--shadow)}
.scard h3{font-size:15px;padding-left:10px;border-left:3px solid var(--brand);margin-bottom:14px}
.toc{position:relative;padding-left:18px;border-left:1px solid var(--line);display:grid;gap:10px}
.toc::before{content:"";position:absolute;left:-1px;top:0;bottom:0;width:2px;background:transparent}
.toc a{font-size:13.5px;color:#4a5a75;position:relative;transition:.2s}
.toc a::before{content:"";position:absolute;left:-23px;top:8px;width:7px;height:7px;border-radius:50%;background:#c9d6ee;border:2px solid #fff}
.toc a:hover,.toc a.active{color:var(--brand);font-weight:600}
.toc a.active::before{background:var(--brand)}
.hot{display:grid;gap:12px;counter-reset:h}
.hot a{display:flex;gap:10px;font-size:13.5px;color:#37455f;line-height:1.5}
.hot a::before{counter-increment:h;content:counter(h);flex:none;width:20px;height:20px;border-radius:6px;background:#e8eefb;color:#5b6b85;font-size:11.5px;font-weight:700;display:flex;align-items:center;justify-content:center;transition:.2s}
.hot a:nth-child(1)::before{background:linear-gradient(135deg,#1655ff,#4d8bff);color:#fff}
.hot a:nth-child(2)::before{background:linear-gradient(135deg,#f59e0b,#fbbf24);color:#fff}
.hot a:nth-child(3)::before{background:linear-gradient(135deg,#d4a017,#f0c75e);color:#fff}
.hot a:hover{color:var(--brand)}
.hot a:hover::before{transform:scale(1.1)}
.cats{display:flex;flex-wrap:wrap;gap:8px}
.cats span{font-size:12.5px;padding:5px 12px;border-radius:999px;background:#f5f8ff;border:1px solid var(--line);color:#4a5a75;cursor:default;transition:.2s}
.cats span:hover{color:var(--brand);border-color:var(--brand);background:#eef3ff}
/* comments */
.cmts{margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
.cmts h3{font-size:17px;margin-bottom:16px}
.cmt{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line)}
.cmt:last-child{border-bottom:0}
.cmt .avatar{width:38px;height:38px;font-size:14px}
.cmt .cb b{font-size:14px;margin-right:8px}
.cmt .cb time{font-size:12px;color:#93a1b8}
.cmt .cb p{font-size:14px;color:#3a4a63;margin:6px 0 0}
/* download */
.dl-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:stretch;max-width:1200px;margin:0 auto}
.dl-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:32px;box-shadow:var(--shadow)}
.dl-box h2{font-size:26px;margin:10px 0 10px}
.dl-box p{color:var(--muted);font-size:15px}
.dlmeta{display:flex;gap:26px;flex-wrap:wrap;margin-top:18px}
.dlmeta b{display:block;font-size:19px;color:var(--ink)}
.dlmeta span{font-size:12.5px;color:var(--muted)}
.ver{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ver .card{display:flex;flex-direction:column}
.ver .req{font-size:12.5px;color:var(--muted);margin:2px 0 12px}
.ver ul{display:grid;gap:7px;margin-bottom:18px}
.ver li{font-size:13.5px;color:#3c4a63;padding-left:20px;position:relative}
.ver li::before{content:"•";position:absolute;left:4px;color:var(--brand2);font-weight:800}
.ver .btn{margin-top:auto;width:100%}
.req-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.req-grid div{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;font-size:14px;box-shadow:var(--shadow)}
.req-grid b{display:block;font-size:12.5px;color:var(--muted);font-weight:500;margin-bottom:4px}
/* sitemap page */
.mapcols{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.mapcols div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow)}
.mapcols h3{font-size:15px;margin-bottom:12px;color:var(--brand)}
.mapcols li{margin-bottom:7px;font-size:13.5px;color:#43526d}
.mapcols a:hover{color:var(--brand)}
/* 404 */
.err{min-height:74vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:120px 0 60px}
.err .code{font-size:110px;font-weight:800;letter-spacing:-4px;background:linear-gradient(120deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.err h1{font-size:26px;margin:12px 0 10px}
.err p{color:var(--muted);margin-bottom:22px}
/* responsive */
@media(max-width:992px){
.hd .wrap{height:62px}
.nav{position:fixed;top:62px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:8px 4% 18px;box-shadow:0 20px 30px rgba(11,42,107,.12);display:none;max-height:calc(100vh - 62px);overflow:auto}
.navtog:checked~.nav{display:flex}
.burger{display:flex;margin-left:auto}
.nav-lnk,.ddlbl{padding:12px 10px}
.ddm{position:static;box-shadow:none;border:0;padding:0 0 6px 14px;display:none}
.nav-group:hover .ddm{display:none}
.ddchk:checked~.ddm{display:block}
.hero{padding:104px 0 56px}
.hero .wrap{grid-template-columns:1fr;gap:32px}
.hero h1{font-size:34px}
.g4{grid-template-columns:repeat(2,1fr)}
.stats{grid-template-columns:repeat(3,1fr)}
.plat{grid-template-columns:repeat(2,1fr)}
.article-wrap{grid-template-columns:1fr;gap:22px}
.side{position:static}
.g3,.price,.steps,.ver,.req-grid,.kdata{grid-template-columns:repeat(2,1fr)}
.plan.hot{transform:none}
.plan.hot:hover{transform:translateY(-5px)}
.dl-grid{grid-template-columns:1fr}
.mapcols{grid-template-columns:repeat(2,1fr)}
.article,.prose{padding:26px 22px}
.hero-btns .btn{flex:1}
}
@media(max-width:768px){
.hero h1{font-size:29px}
.sec{padding:56px 0}
.sec-h h2{font-size:25px}
.hero-stats{gap:20px}
.hero-stats div b{font-size:22px}
.g4,.g3,.price,.steps,.ver,.req-grid{grid-template-columns:1fr}
.stats{grid-template-columns:repeat(2,1fr)}
.cta{padding:36px 22px;border-radius:18px}
.cta h2{font-size:23px}
.ft-grid{grid-template-columns:1fr 1fr}
.article h1{font-size:23px}
.demo-body{grid-template-columns:1fr}
.demo-side{flex-direction:row;overflow:auto;border-right:0;border-bottom:1px solid var(--line);padding:8px}
.demo-side label{flex:none}
.dkpi{grid-template-columns:repeat(3,1fr)}
.dlmeta{gap:16px}
}
@media(max-width:480px){
.hero h1{font-size:25px}
.hero p.lead{font-size:15px}
.stats{grid-template-columns:1fr}
.kdata{grid-template-columns:1fr}
.mapcols,.ft-grid{grid-template-columns:1fr}
.article,.prose{padding:20px 16px}
.pager{grid-template-columns:1fr}
.dkpi{grid-template-columns:1fr 1fr}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
html.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
html.js .reveal.in{opacity:1;transform:none}
html:not(.js) .reveal{opacity:1;transform:none}
a:focus-visible,summary:focus-visible,label:focus-visible,button:focus-visible{outline:2px solid var(--brand);outline-offset:2px}