:root{--bg:#071019;--bg2:#0b1626;--card:#111f30;--card2:#152639;--line:#1e3a55;--txt:#eaf2fb;--sub:#9fb3c8;--acc:#00d4a6;--acc2:#2e8bff;--cta:#ff8a3d;--grad:linear-gradient(135deg,#00d4a6,#2e8bff)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:"Segoe UI","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--txt);line-height:1.7;font-size:16px}a{color:inherit;text-decoration:none}a:hover{color:var(--acc)}img{max-width:100%;display:block}.wrap{max-width:1180px;margin:0 auto;padding:0 20px}.btn{display:inline-block;padding:13px 30px;border-radius:8px;font-weight:600;cursor:pointer;transition:.2s}.btn-acc{background:var(--grad);color:#04121c}.btn-acc:hover{transform:translateY(-2px);color:#04121c;box-shadow:0 8px 24px rgba(0,212,166,.35)}.btn-cta{background:var(--cta);color:#1a0d00}.btn-cta:hover{transform:translateY(-2px);color:#1a0d00;box-shadow:0 8px 24px rgba(255,138,61,.35)}.btn-ghost{border:1px solid var(--line);color:var(--txt)}.btn-ghost:hover{border-color:var(--acc);color:var(--acc)}.topbar{position:sticky;top:0;z-index:50;background:rgba(7,16,25,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.nav{display:flex;align-items:center;justify-content:space-between;height:64px}.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px}.logo img{width:32px;height:32px;border-radius:6px}.nav-links{display:flex;gap:26px;align-items:center}.nav-links a{color:var(--sub);font-size:15px}.nav-links a:hover{color:var(--acc)}.lang{display:flex;gap:8px}.lang a{padding:5px 12px;border:1px solid var(--line);border-radius:6px;font-size:13px;color:var(--sub)}.lang a.on{background:var(--acc);color:#04121c;border-color:var(--acc);font-weight:600}.hero{padding:70px 0 60px;background:radial-gradient(1200px 600px at 20% 0%,rgba(0,212,166,.12),transparent 60%),radial-gradient(900px 500px at 90% 10%,rgba(46,139,255,.12),transparent 60%)}.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.hero h1{font-size:44px;line-height:1.25;margin-bottom:18px}.hero h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}.hero p.lead{color:var(--sub);font-size:18px;margin-bottom:28px}.hero-cta{display:flex;gap:16px;flex-wrap:wrap}.hero-stats{display:flex;gap:30px;margin-top:30px}.hero-stats div b{display:block;font-size:26px;color:var(--acc)}.hero-stats div span{font-size:13px;color:var(--sub)}.mock{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.45)}.mock-top{display:flex;align-items:center;gap:8px;padding:12px 16px;background:var(--card2);border-bottom:1px solid var(--line)}.mock-dot{width:11px;height:11px;border-radius:50%}.mock-body{padding:22px}.mock-map{position:relative;height:190px;background:radial-gradient(circle at 50% 50%,rgba(0,212,166,.14),transparent 70%),repeating-linear-gradient(45deg,rgba(30,58,85,.3) 0 1px,transparent 1px 22px);border-radius:10px;margin-bottom:18px}.mock-node{position:absolute;width:12px;height:12px;background:var(--acc);border-radius:50%;box-shadow:0 0 12px var(--acc)}.mock-line{position:absolute;height:1px;background:linear-gradient(90deg,var(--acc),transparent);transform-origin:left}.mock-status{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;background:var(--card2);border-radius:10px}.mock-status .on{color:var(--acc);font-weight:600}.mock-status .ping{color:var(--sub);font-size:13px}.mock-btn{display:block;text-align:center;background:var(--grad);color:#04121c;padding:13px;border-radius:8px;font-weight:700;margin-top:14px}.mock-btn:hover{color:#04121c}.sec{padding:64px 0}.sec-head{text-align:center;max-width:720px;margin:0 auto 44px}.sec-head h2{font-size:34px;margin-bottom:14px}.sec-head p{color:var(--sub)}.grid{display:grid;gap:22px}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:26px;transition:.25s}.card:hover{transform:translateY(-4px);border-color:var(--acc)}.card .ic{width:52px;height:52px;border-radius:12px;background:rgba(0,212,166,.12);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}.card h3{font-size:19px;margin-bottom:10px}.card p{color:var(--sub);font-size:15px}.notice{background:linear-gradient(135deg,rgba(255,138,61,.12),rgba(0,212,166,.08));border:1px solid rgba(255,138,61,.35);border-radius:12px;padding:20px 24px;display:flex;gap:16px;align-items:flex-start}.notice .t{font-weight:700;color:var(--cta);margin-bottom:6px}.notice p{color:var(--sub);font-size:14px}.trust{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}.trust-item{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px 26px;text-align:center;min-width:150px}.trust-item b{display:block;font-size:28px;color:var(--acc)}.trust-item span{font-size:13px;color:var(--sub)}.scene{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:26px}.scene h3{font-size:18px;margin-bottom:8px}.scene p{color:var(--sub);font-size:14px}.compare{width:100%;border-collapse:collapse;background:var(--card);border-radius:14px;overflow:hidden}.compare th,.compare td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line)}.compare th{background:var(--card2);color:var(--acc);font-size:14px}.compare td{font-size:14px;color:var(--sub)}.compare .yes{color:var(--acc);font-weight:600}.compare .no{color:#ff6b6b}.tabs{display:flex;gap:10px;justify-content:center;margin-bottom:30px;flex-wrap:wrap}.tab{padding:9px 20px;border:1px solid var(--line);border-radius:20px;color:var(--sub);cursor:pointer;font-size:14px}.tab.on{background:var(--acc);color:#04121c;border-color:var(--acc);font-weight:600}.news-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.25s}.news-card:hover{transform:translateY(-4px);border-color:var(--acc)}.news-card img{height:170px;width:100%;object-fit:cover}.news-card .body{padding:18px}.news-card .cat{display:inline-block;font-size:12px;color:var(--acc);background:rgba(0,212,166,.1);padding:3px 10px;border-radius:20px;margin-bottom:10px}.news-card h3{font-size:17px;line-height:1.5;margin-bottom:8px}.news-card .date{font-size:13px;color:var(--sub)}.review{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px}.review .stars{color:var(--cta);margin-bottom:10px;letter-spacing:2px}.review p{color:var(--sub);font-size:15px;margin-bottom:14px}.review .who{display:flex;align-items:center;gap:12px}.review .av{width:40px;height:40px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font-weight:700;color:#04121c}.review .who b{font-size:14px}.review .who span{display:block;font-size:12px;color:var(--sub)}.dl-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}.dl-item{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:26px 18px;text-align:center;transition:.25s}.dl-item:hover{transform:translateY(-4px);border-color:var(--acc)}.dl-item .os{font-size:34px;margin-bottom:10px}.dl-item h4{font-size:16px;margin-bottom:14px}.dl-item .btn{width:100%;padding:11px 0;font-size:14px}.faq-item{background:var(--card);border:1px solid var(--line);border-radius:12px;margin-bottom:14px;overflow:hidden}.faq-item summary{padding:18px 22px;cursor:pointer;font-weight:600;list-style:none;position:relative}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";position:absolute;right:20px;color:var(--acc);font-size:22px}.faq-item[open] summary:after{content:"−"}.faq-item .ans{padding:0 22px 20px;color:var(--sub);font-size:15px}.faq-item .ans ol{padding-left:20px;margin:10px 0}.faq-item .ans li{margin-bottom:8px}.cta-box{background:linear-gradient(135deg,#0b2a3a,#0a1f33);border:1px solid var(--line);border-radius:18px;padding:50px 30px;text-align:center}.cta-box h2{font-size:32px;margin-bottom:14px}.cta-box p{color:var(--sub);margin-bottom:26px}.footer{background:#050c14;border-top:1px solid var(--line);padding:50px 0 30px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}.footer h4{font-size:15px;margin-bottom:14px}.footer a,.footer p{color:var(--sub);font-size:14px;display:block;margin-bottom:8px}.footer a:hover{color:var(--acc)}.footer .copy{border-top:1px solid var(--line);margin-top:30px;padding-top:20px;text-align:center;color:var(--sub);font-size:13px}.crumb{font-size:13px;color:var(--sub);padding:16px 0;border-bottom:1px solid var(--line)}.crumb a{color:var(--acc)}.crumb span{margin:0 6px}.page-head{padding:44px 0 24px}.page-head h1{font-size:36px;margin-bottom:10px}.page-head p{color:var(--sub)}.article{max-width:820px;margin:0 auto}.article-meta{display:flex;gap:16px;align-items:center;color:var(--sub);font-size:14px;margin:18px 0}.article-meta .cat{color:var(--acc);background:rgba(0,212,166,.1);padding:3px 12px;border-radius:20px}.article-body{color:#d4e2f0;font-size:16px}.article-body p{margin-bottom:18px}.article-body h2{font-size:26px;margin:30px 0 16px;color:var(--acc)}.article-body img{margin:20px 0;border-radius:12px}.article-body blockquote{border-left:3px solid var(--acc);padding:12px 18px;background:var(--card);border-radius:0 10px 10px 0;margin:18px 0;color:var(--sub)}.article-nav{display:flex;justify-content:space-between;margin:40px 0;gap:16px}.article-nav a{flex:1;background:var(--card);border:1px solid var(--line);padding:16px;border-radius:10px;font-size:14px}.article-nav a:hover{border-color:var(--acc)}.side{position:sticky;top:90px}.side h4{font-size:16px;margin-bottom:14px;color:var(--acc)}.side ul{list-style:none}.side li{margin-bottom:12px}.side a{color:var(--sub);font-size:14px;line-height:1.5}.side a:hover{color:var(--acc)}.article-layout{display:grid;grid-template-columns:1fr 300px;gap:40px;max-width:1180px;margin:0 auto}.pager{display:flex;gap:10px;justify-content:center;margin-top:30px}.pager a{padding:8px 14px;border:1px solid var(--line);border-radius:8px;color:var(--sub);font-size:14px}.pager a.on{background:var(--acc);color:#04121c;border-color:var(--acc)}.relate{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}@media(max-width:960px){.hero-grid{grid-template-columns:1fr}.grid-3,.grid-2,.dl-grid,.relate{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr 1fr}.article-layout{grid-template-columns:1fr}.side{position:static}.nav-links{display:none}}@media(max-width:560px){.grid-3,.grid-2,.dl-grid,.relate{grid-template-columns:1fr}.hero h1{font-size:30px}}