:root{--brand:#4f46e5;--brand2:#06b6d4;--dark:#0f172a;--txt:#1e293b;--muted:#64748b;--bg:#f6f8fc;--card:#fff;--line:#e2e8f0;--gold:#f59e0b;--orange:#f97316;--grad:linear-gradient(135deg,#4f46e5,#06b6d4);--r:16px;--sh:0 10px 30px rgba(15,23,42,.08);--sh2:0 18px 45px rgba(79,70,229,.22)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--txt);background:var(--bg);line-height:1.7;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 30px;border-radius:50px;font-weight:700;font-size:15px;transition:.3s;cursor:pointer;border:none}
.btn-grad{background:var(--grad);color:#fff;box-shadow:var(--sh2)}
.btn-grad:hover{transform:translateY(-3px);box-shadow:0 24px 50px rgba(6,182,212,.35)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.25);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:rgba(255,255,255,.18)}
.btn-line{background:transparent;color:var(--brand);border:2px solid var(--brand)}
.btn-line:hover{background:var(--brand);color:#fff}
.sec{padding:90px 0}
.sec-head{text-align:center;max-width:760px;margin:0 auto 55px}
.sec-head .tag{display:inline-block;padding:6px 18px;border-radius:50px;background:rgba(79,70,229,.1);color:var(--brand);font-size:13px;font-weight:700;margin-bottom:16px}
.sec-head h2{font-size:34px;font-weight:800;margin-bottom:14px;letter-spacing:.5px}
.sec-head p{color:var(--muted);font-size:16px}
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;padding:14px 0;transition:.35s;background:transparent}
.site-header.scrolled{background:rgba(15,23,42,.88);backdrop-filter:blur(14px);box-shadow:0 8px 24px rgba(2,6,23,.35);padding:9px 0}
.header-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;letter-spacing:1px}
.logo img{width:36px;height:36px;border-radius:9px}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-item{position:relative}
.nav-link{display:flex;align-items:center;gap:6px;padding:10px 16px;color:rgba(255,255,255,.88);font-size:15px;font-weight:600;border-radius:8px;transition:.25s;cursor:pointer}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.1)}
.nav-link .arrow{font-size:11px;transition:.3s;display:inline-block}
.nav-item:hover .arrow,.nav-item.open .arrow{transform:rotate(180deg)}
.dropdown{position:absolute;top:calc(100% + 10px);left:0;min-width:200px;background:#fff;border-radius:14px;box-shadow:var(--sh);padding:8px;opacity:0;visibility:hidden;transform:translateY(12px);transition:.28s;z-index:99}
.nav-item:hover .dropdown,.nav-item.open .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:block;padding:10px 16px;color:var(--txt);font-size:14px;border-radius:9px;transition:.2s}
.dropdown a:hover{background:#eef2ff;color:var(--brand);transform:translateX(4px)}
.header-cta{flex-shrink:0}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;z-index:1002}
.hamburger span{width:26px;height:3px;background:#fff;border-radius:3px;transition:.3s}
.hamburger.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}
.hero{position:relative;background:radial-gradient(1100px 600px at 85% -10%,rgba(6,182,212,.28),transparent 60%),radial-gradient(900px 520px at 0% 0%,rgba(79,70,229,.32),transparent 55%),linear-gradient(160deg,#0f172a 0%,#1e1b4b 55%,#0f172a 100%);color:#fff;padding:170px 0 110px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center}
.hero h1{font-size:46px;line-height:1.25;font-weight:900;margin-bottom:22px}
.hero h1 .hl{background:linear-gradient(120deg,#22d3ee,#818cf8);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{font-size:18px;color:rgba(255,255,255,.75);margin-bottom:34px;max-width:540px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:44px}
.hero-stats{display:flex;gap:38px;flex-wrap:wrap}
.hero-stats .num{font-size:34px;font-weight:900;background:linear-gradient(120deg,#22d3ee,#a5b4fc);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-stats .lb{font-size:13px;color:rgba(255,255,255,.6);margin-top:2px}
.demo-wrap{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:22px;padding:18px;backdrop-filter:blur(12px);box-shadow:0 30px 60px rgba(2,6,23,.45)}
.demo-panel{background:#0b1220;border-radius:14px;overflow:hidden;border:1px solid rgba(255,255,255,.08)}
.demo-top{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.08);gap:10px;flex-wrap:wrap}
.demo-top .dots{display:flex;gap:6px}
.demo-top .dots i{width:11px;height:11px;border-radius:50%}
.demo-top .dots i:nth-child(1){background:#ff5f57}.demo-top .dots i:nth-child(2){background:#febc2e}.demo-top .dots i:nth-child(3){background:#28c840}
.demo-select{background:#141d33;color:#e2e8f0;border:1px solid rgba(255,255,255,.15);border-radius:8px;padding:6px 12px;font-size:12px;outline:none}
.demo-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:14px 16px}
.demo-stat{background:rgba(255,255,255,.05);border-radius:10px;padding:10px;text-align:center}
.demo-stat b{display:block;font-size:19px;color:#22d3ee;font-variant-numeric:tabular-nums}
.demo-stat span{font-size:10.5px;color:rgba(255,255,255,.55)}
.demo-list{height:230px;overflow:hidden;padding:0 16px;position:relative}
.demo-list::after{content:"";position:absolute;left:0;right:0;bottom:0;height:40px;background:linear-gradient(transparent,#0b1220)}
.demo-row{display:flex;align-items:center;justify-content:space-between;padding:9px 10px;margin-bottom:7px;background:rgba(255,255,255,.04);border-radius:8px;font-size:12px;color:#cbd5e1;animation:rowIn .4s both}
.demo-row .st{font-size:11px;font-weight:700;padding:2px 10px;border-radius:20px}
.st-ok{color:#4ade80;background:rgba(74,222,128,.14)}
.st-bad{color:#f87171;background:rgba(248,113,113,.14)}
.st-run{color:#fbbf24;background:rgba(251,191,36,.14)}
@keyframes rowIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.demo-foot{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-top:1px solid rgba(255,255,255,.08);gap:10px;flex-wrap:wrap}
.demo-speed{font-size:12px;color:#94a3b8}
.demo-speed b{color:#22d3ee;font-size:16px}
.demo-btn{background:var(--grad);color:#fff;border:none;padding:9px 22px;border-radius:50px;font-weight:700;font-size:13px;cursor:pointer;transition:.3s}
.demo-btn:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(6,182,212,.4)}
.demo-btn.stop{background:linear-gradient(135deg,#ef4444,#f97316)}
.grid{display:grid;gap:26px}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border-radius:var(--r);padding:30px 26px;box-shadow:var(--sh);border:1px solid var(--line);transition:.35s}
.card:hover{transform:translateY(-8px);box-shadow:0 22px 45px rgba(15,23,42,.13);border-color:transparent}
.feat-card .ic{width:58px;height:58px;border-radius:15px;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px;background:linear-gradient(135deg,rgba(79,70,229,.12),rgba(6,182,212,.12));color:var(--brand)}
.feat-card h3{font-size:18px;margin-bottom:10px}
.feat-card p{font-size:14px;color:var(--muted)}
.flow{background:linear-gradient(160deg,#0f172a,#1e1b4b);color:#fff}
.flow .sec-head p{color:rgba(255,255,255,.65)}
.flow-step{position:relative;text-align:center;padding:36px 22px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--r);transition:.3s}
.flow-step:hover{transform:translateY(-6px);background:rgba(255,255,255,.09)}
.flow-step .n{width:46px;height:46px;margin:0 auto 16px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:900;font-size:19px}
.flow-step h3{font-size:17px;margin-bottom:8px}
.flow-step p{font-size:13px;color:rgba(255,255,255,.6)}
.scene-card{padding:26px;background:var(--card);border-radius:var(--r);border:1px solid var(--line);box-shadow:var(--sh);transition:.32s}
.scene-card:hover{transform:translateY(-6px);border-color:#c7d2fe;box-shadow:0 18px 40px rgba(79,70,229,.14)}
.scene-card .em{font-size:32px;margin-bottom:12px}
.scene-card h3{font-size:17px;margin-bottom:8px}
.scene-card p{font-size:13.5px;color:var(--muted)}
.safe{border-top:1px solid var(--line);background:linear-gradient(180deg,#f6f8fc,#fff)}
.safe-item{display:flex;gap:16px;align-items:flex-start;padding:24px;background:var(--card);border-radius:var(--r);box-shadow:var(--sh);border:1px solid var(--line)}
.safe-item .ic{flex-shrink:0;width:48px;height:48px;border-radius:12px;background:rgba(6,182,212,.12);color:#0891b2;display:flex;align-items:center;justify-content:center;font-size:22px}
.safe-item h3{font-size:16px;margin-bottom:6px}
.safe-item p{font-size:13.5px;color:var(--muted)}
.price-card{position:relative;text-align:center;padding:40px 28px;background:var(--card);border-radius:20px;border:1px solid var(--line);box-shadow:var(--sh);transition:.35s}
.price-card:hover{transform:translateY(-8px)}
.price-card.hot{border:2px solid transparent;background:linear-gradient(var(--card),var(--card)) padding-box,var(--grad) border-box;box-shadow:0 24px 55px rgba(79,70,229,.25);transform:scale(1.04)}
.price-card.hot:hover{transform:scale(1.04) translateY(-8px)}
.hot-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12px;font-weight:800;padding:5px 18px;border-radius:50px;white-space:nowrap}
.price-card .pname{font-size:17px;font-weight:800;margin-bottom:8px}
.price-card .price{font-size:42px;font-weight:900;margin:10px 0 4px;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.price-card .punit{font-size:13px;color:var(--muted);margin-bottom:20px}
.price-card ul{text-align:left;margin:20px 0 28px}
.price-card ul li{padding:7px 0;font-size:14px;color:var(--txt);display:flex;gap:9px;align-items:center}
.price-card ul li::before{content:"✓";color:#10b981;font-weight:900}
.faq{max-width:820px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden;transition:.3s}
.faq-item.open{border-color:#c7d2fe;box-shadow:var(--sh)}
.faq-q{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:20px 24px;font-size:16px;font-weight:700;cursor:pointer}
.faq-q .pl{transition:.3s;color:var(--brand);font-size:20px}
.faq-item.open .faq-q .pl{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a-in{padding:0 24px 22px;color:var(--muted);font-size:14.5px}
.faq-a-in b{color:var(--txt)}
.testi-card{padding:28px;background:var(--card);border-radius:var(--r);border:1px solid var(--line);box-shadow:var(--sh);transition:.3s}
.testi-card:hover{transform:translateY(-6px)}
.testi-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.testi-ava{width:48px;height:48px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;flex-shrink:0}
.testi-head b{display:block;font-size:15px}
.testi-head span{font-size:12.5px;color:var(--muted)}
.testi-card p{font-size:14px;color:var(--txt);line-height:1.8}
.stars{color:#f59e0b;font-size:13px;margin-top:8px}
.news-card{background:var(--card);border-radius:var(--r);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh);transition:.32s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-8px);box-shadow:0 20px 44px rgba(15,23,42,.14)}
.news-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-card .bd{padding:20px 22px;display:flex;flex-direction:column;flex:1}
.news-card .dt{font-size:12.5px;color:var(--muted);margin-bottom:8px}
.news-card h3{font-size:16.5px;line-height:1.5;margin-bottom:10px}
.news-card h3 a:hover{color:var(--brand)}
.news-card p{font-size:13.5px;color:var(--muted);flex:1}
.news-card .more{margin-top:14px;color:var(--brand);font-weight:700;font-size:13.5px}
.cta{background:radial-gradient(900px 420px at 50% -20%,rgba(6,182,212,.3),transparent 60%),linear-gradient(150deg,#0f172a,#1e1b4b);color:#fff;text-align:center;padding:95px 0}
.cta h2{font-size:36px;font-weight:900;margin-bottom:16px}
.cta p{color:rgba(255,255,255,.7);margin-bottom:34px;font-size:16px}
.cta .btn{font-size:16px;padding:16px 44px}
footer{background:#0b1020;color:#94a3b8;padding:70px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:50px}
.foot-brand .logo{color:#fff;margin-bottom:16px}
.foot-brand p{font-size:13.5px;line-height:1.9}
.foot-col h4{color:#fff;font-size:16px;margin-bottom:18px}
.foot-col a{display:block;padding:6px 0;font-size:13.5px;transition:.25s}
.foot-col a:hover{color:#22d3ee;transform:translateX(4px)}
.foot-bot{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;text-align:center;font-size:12.5px;color:#64748b}
.page-hero{position:relative;background:radial-gradient(900px 460px at 80% -10%,rgba(6,182,212,.26),transparent 60%),linear-gradient(160deg,#0f172a,#1e1b4b);color:#fff;padding:150px 0 80px;text-align:center}
.page-hero h1{font-size:40px;font-weight:900;margin-bottom:14px}
.page-hero p{color:rgba(255,255,255,.7);max-width:660px;margin:0 auto;font-size:16px}
.breadcrumb{display:flex;gap:8px;align-items:center;justify-content:center;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55);margin-top:16px}
.breadcrumb a:hover{color:#22d3ee}
.breadcrumb .sep{opacity:.5}
.dl-hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.ver-card{padding:30px;background:var(--card);border-radius:var(--r);border:1px solid var(--line);box-shadow:var(--sh);transition:.3s;position:relative}
.ver-card:hover{transform:translateY(-6px)}
.ver-card.hot{border:2px solid transparent;background:linear-gradient(var(--card),var(--card)) padding-box,var(--grad) border-box}
.ver-card .vtag{font-size:12px;font-weight:800;color:var(--brand);background:rgba(79,70,229,.1);padding:4px 14px;border-radius:50px}
.ver-card h3{font-size:22px;margin:14px 0 6px}
.ver-card .vsize{color:var(--muted);font-size:13px;margin-bottom:16px}
.ver-card ul{margin-bottom:24px}
.ver-card ul li{font-size:14px;padding:5px 0;display:flex;gap:9px;align-items:center}
.ver-card ul li::before{content:"✓";color:#10b981;font-weight:900}
.sys-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.sys-item{display:flex;gap:14px;align-items:flex-start;padding:22px;background:var(--card);border-radius:14px;border:1px solid var(--line)}
.sys-item .ic{font-size:24px}
.sys-item b{display:block;font-size:14.5px;margin-bottom:3px}
.sys-item span{font-size:13px;color:var(--muted)}
.step-num{display:flex;gap:20px;align-items:flex-start;padding:26px;background:var(--card);border-radius:var(--r);border:1px solid var(--line);box-shadow:var(--sh)}
.step-num .n{flex-shrink:0;width:50px;height:50px;border-radius:50%;background:var(--grad);color:#fff;font-weight:900;font-size:20px;display:flex;align-items:center;justify-content:center}
.step-num h3{font-size:17px;margin-bottom:6px}
.step-num p{font-size:13.5px;color:var(--muted)}
.news-layout{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start}
.article{background:var(--card);border-radius:20px;border:1px solid var(--line);box-shadow:var(--sh);overflow:hidden}
.article-cover{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-bd{padding:38px 42px}
.article-bd h1{font-size:28px;line-height:1.45;margin:14px 0 18px}
.article-meta{display:flex;gap:20px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-bottom:26px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.article-bd h2{font-size:21px;margin:34px 0 14px;padding-left:14px;border-left:4px solid var(--brand);scroll-margin-top:90px}
.article-bd p{margin-bottom:18px;font-size:15px;line-height:2}
.article-bd .data-block{background:#f1f5ff;border-radius:12px;padding:20px 24px;margin:22px 0;border-left:4px solid var(--brand)}
.article-bd .data-block ul li{font-size:14.5px;padding:5px 0;color:#334155}
.article-bd .data-block ul li b{color:var(--brand)}
.article-bd figure{margin:24px 0}
.article-bd figure img{width:100%;border-radius:14px}
.article-bd figcaption{font-size:12.5px;color:var(--muted);text-align:center;margin-top:8px}
.article-quote{border-left:4px solid var(--brand2);background:#ecfeff;padding:16px 22px;border-radius:0 12px 12px 0;margin:22px 0;font-size:15px;color:#155e75}
.article-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
.article-tags a{font-size:12.5px;padding:5px 16px;border-radius:50px;background:#eef2ff;color:var(--brand)}
.article-nav{display:flex;justify-content:space-between;gap:14px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line);flex-wrap:wrap}
.article-nav a{font-size:14px;color:var(--brand);font-weight:600;max-width:46%}
.article-nav a:hover{text-decoration:underline}
.comments{margin-top:40px;padding-top:30px;border-top:1px solid var(--line)}
.comments h3{font-size:20px;margin-bottom:22px}
.comment{display:flex;gap:14px;padding:18px 0;border-bottom:1px dashed var(--line)}
.comment .ava{width:42px;height:42px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;flex-shrink:0}
.comment b{font-size:14.5px}
.comment .cd{font-size:12px;color:var(--muted);margin-bottom:6px}
.comment p{font-size:14px;color:#334155;line-height:1.8;margin:0}
.sidebar{display:flex;flex-direction:column;gap:24px;position:sticky;top:90px}
.side-card{background:var(--card);border-radius:16px;border:1px solid var(--line);box-shadow:var(--sh);padding:22px}
.side-card h4{display:flex;align-items:center;gap:10px;font-size:16.5px;margin-bottom:16px}
.side-card h4::before{content:"";width:4px;height:18px;background:var(--grad);border-radius:2px}
.toc{position:relative}
.toc-item{display:flex;align-items:flex-start;gap:12px;padding:7px 0;position:relative;font-size:13.5px;color:var(--muted);transition:.25s;cursor:pointer;line-height:1.5}
.toc-item::before{content:"";flex-shrink:0;width:10px;height:10px;border-radius:50%;background:#cbd5e1;margin-top:5px;border:2px solid #fff;box-shadow:0 0 0 1.5px #cbd5e1;transition:.25s;position:relative;z-index:2}
.toc-item::after{content:"";position:absolute;left:4px;top:14px;bottom:-4px;width:2px;background:#e2e8f0;z-index:1}
.toc-item:last-child::after{display:none}
.toc-item:hover{color:var(--brand)}
.toc-item.active{color:var(--brand);font-weight:800}
.toc-item.active::before{background:var(--brand);box-shadow:0 0 0 1.5px var(--brand)}
.rank-item{display:flex;align-items:center;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line)}
.rank-item:last-child{border-bottom:none}
.rank-badge{flex-shrink:0;width:26px;height:26px;border-radius:8px;color:#fff;font-size:12.5px;font-weight:900;display:flex;align-items:center;justify-content:center;background:#cbd5e1;transition:.25s}
.rank-item:nth-child(1) .rank-badge{background:linear-gradient(135deg,#4f46e5,#818cf8)}
.rank-item:nth-child(2) .rank-badge{background:linear-gradient(135deg,#f97316,#fbbf24)}
.rank-item:nth-child(3) .rank-badge{background:linear-gradient(135deg,#f59e0b,#fde68a)}
.rank-item a{font-size:13.5px;line-height:1.5;transition:.2s}
.rank-item:hover .rank-badge{transform:scale(1.12)}
.rank-item:hover a{color:var(--brand)}
.cat-tags{display:flex;flex-wrap:wrap;gap:9px}
.cat-tags a{font-size:12.5px;padding:6px 15px;border-radius:50px;background:#f1f5f9;color:#475569;border:1px solid var(--line);transition:.25s}
.cat-tags a:hover{color:var(--brand);border-color:var(--brand);background:#eef2ff}
.news-list-card{display:flex;gap:24px;background:var(--card);border-radius:var(--r);border:1px solid var(--line);box-shadow:var(--sh);padding:22px;margin-bottom:22px;transition:.3s;align-items:center}
.news-list-card:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(15,23,42,.12)}
.news-list-card img{width:280px;aspect-ratio:16/9;object-fit:cover;border-radius:12px;flex-shrink:0}
.news-list-card h3{font-size:19px;margin:8px 0 10px}
.news-list-card h3 a:hover{color:var(--brand)}
.news-list-card p{font-size:14px;color:var(--muted);margin-bottom:12px}
.news-list-card .dt{font-size:12.5px;color:var(--muted)}
.sitemap-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.sitemap-cols h3{font-size:17px;margin-bottom:16px;color:var(--brand)}
.sitemap-cols li{padding:7px 0;font-size:14.5px}
.sitemap-cols a:hover{color:var(--brand)}
.err-404{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:radial-gradient(800px 400px at 50% 0%,rgba(6,182,212,.2),transparent 60%),linear-gradient(160deg,#0f172a,#1e1b4b);color:#fff;padding:20px}
.err-404 h1{font-size:110px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1}
.err-404 h2{font-size:26px;margin:18px 0 12px}
.err-404 p{color:rgba(255,255,255,.65);margin-bottom:30px}
.reveal{opacity:0;transform:translateY(30px);transition:.7s ease}
.reveal.show{opacity:1;transform:translateY(0)}
@media(max-width:992px){
.hero-grid,.dl-hero-grid{grid-template-columns:1fr;gap:46px}
.hero{padding:140px 0 80px}
.hero h1{font-size:36px}
.news-layout{grid-template-columns:1fr}
.sidebar{position:static;order:2}
.g3,.g4{grid-template-columns:repeat(2,1fr)}
.foot-grid{grid-template-columns:1fr 1fr}
.main-nav{position:fixed;top:0;right:-100%;width:min(320px,82vw);height:100vh;background:#0f172a;flex-direction:column;align-items:stretch;padding:90px 22px 30px;transition:.35s;gap:6px;overflow-y:auto;z-index:1001;box-shadow:-20px 0 60px rgba(2,6,23,.5)}
.main-nav.open{right:0}
.nav-item{position:static}
.nav-link{font-size:16px;padding:13px 14px;justify-content:space-between}
.nav-link .arrow{transform:rotate(-90deg)}
.nav-item.open .arrow{transform:rotate(0deg)}
.dropdown{position:static;min-width:0;background:rgba(255,255,255,.05);box-shadow:none;opacity:0;visibility:hidden;transform:none;max-height:0;overflow:hidden;padding:0 10px;transition:max-height .35s;border-radius:10px}
.nav-item.open .dropdown{opacity:1;visibility:visible;max-height:340px;padding:6px 10px}
.dropdown a{color:rgba(255,255,255,.8);padding:10px 14px}
.dropdown a:hover{background:rgba(255,255,255,.08);color:#22d3ee;transform:none}
.hamburger{display:flex}
.header-cta{display:none}
.sys-grid{grid-template-columns:1fr 1fr}
.sitemap-cols{grid-template-columns:1fr}
.article-bd{padding:28px 22px}
.news-list-card{flex-direction:column;align-items:stretch}
.news-list-card img{width:100%}
}
@media(max-width:768px){
.sec{padding:64px 0}
.sec-head h2{font-size:27px}
.hero h1{font-size:29px}
.hero-stats{gap:24px}
.hero-stats .num{font-size:27px}
.g3,.g4,.sys-grid{grid-template-columns:1fr}
.foot-grid{grid-template-columns:1fr}
.page-hero h1{font-size:29px}
.article-bd h1{font-size:23px}
.price-card.hot{transform:none}
.cta h2{font-size:27px}
.demo-stats{grid-template-columns:repeat(2,1fr)}
.hero-btns .btn{width:100%}
}
@media(max-width:480px){
.container{padding:0 16px}
.hero h1{font-size:25px}
.hero-sub{font-size:15.5px}
.btn{padding:12px 24px;font-size:14px}
.sec-head h2{font-size:24px}
.article-bd{padding:22px 16px}
.article-nav a{max-width:100%}
.demo-list{height:200px}
}