:root{--brand:#2f6bff;--brand2:#00d4ff;--dark:#0a0e1a;--dark2:#11162a;--txt:#1a2233;--muted:#5b6478;--line:#e6eaf2;--bg:#f6f8fc;--card:#fff;--grad:linear-gradient(135deg,#2f6bff 0%,#00d4ff 100%);--r:16px;--shadow:0 12px 40px rgba(15,23,42,.10);--shadow2:0 6px 20px rgba(15,23,42,.08)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--txt);background:var(--bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}img{max-width:100%;display:block}a{text-decoration:none;color:inherit}ul{list-style:none}button{font-family:inherit;cursor:pointer;border:none;background:none}.container{max-width:1200px;margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:999px;font-weight:600;font-size:15px;transition:.25s;white-space:nowrap}.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(47,107,255,.35)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(47,107,255,.5)}.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.22);backdrop-filter:blur(6px)}.btn-ghost:hover{background:rgba(255,255,255,.16)}.btn-line{background:#fff;color:var(--brand);border:1.5px solid var(--line)}.btn-line:hover{border-color:var(--brand)}.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav{position:fixed;top:0;left:0;right:0;z-index:999;transition:.3s;padding:16px 0;color:#fff}.nav.scrolled{background:rgba(10,14,26,.82);backdrop-filter:blur(14px);box-shadow:0 4px 24px rgba(0,0,0,.18);padding:10px 0}.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}.nav-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:#fff}.nav-logo img{width:34px;height:34px;border-radius:8px}.nav-menu{display:flex;align-items:center;gap:6px}.nav-item{position:relative}.nav-item>a,.nav-item>button{display:flex;align-items:center;gap:6px;padding:9px 14px;border-radius:10px;color:#dfe6f5;font-size:15px;font-weight:500;transition:.2s}.nav-item>a:hover,.nav-item>button:hover{color:#fff;background:rgba(255,255,255,.08)}.nav-item .arrow{transition:.3s;font-size:11px}.nav-item.open .arrow{transform:rotate(180deg)}.dropdown{position:absolute;top:calc(100% + 8px);left:0;min-width:210px;background:#fff;border-radius:14px;box-shadow:var(--shadow);padding:8px;opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s}.nav-item.open .dropdown{opacity:1;visibility:visible;transform:translateY(0)}.dropdown a{display:block;padding:10px 14px;border-radius:9px;color:var(--txt);font-size:14px;transition:.15s}.dropdown a:hover{background:#f0f4ff;color:var(--brand)}.nav-right{display:flex;align-items:center;gap:12px}.hamburger{display:none;width:42px;height:42px;border-radius:10px;flex-direction:column;align-items:center;justify-content:center;gap:5px;background:rgba(255,255,255,.1)}.hamburger span{width:20px;height:2px;background:#fff;border-radius:2px;transition:.3s}.hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}.hamburger.active span:nth-child(2){opacity:0}.hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.hero{position:relative;background:radial-gradient(1200px 600px at 80% -10%,rgba(0,212,255,.18),transparent 60%),radial-gradient(900px 500px at 0% 110%,rgba(47,107,255,.25),transparent 60%),linear-gradient(160deg,#0a0e1a 0%,#101833 55%,#0b1430 100%);color:#fff;padding:150px 0 90px;overflow:hidden}.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(0,212,255,.12);border:1px solid rgba(0,212,255,.3);color:#8ff0ff;padding:7px 16px;border-radius:999px;font-size:13px;margin-bottom:22px}.hero-title{font-size:52px;line-height:1.16;font-weight:800;margin-bottom:20px}.hero-sub{font-size:18px;color:#b9c4dc;max-width:540px;margin-bottom:30px}.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px}.hero-stats{display:flex;gap:36px;flex-wrap:wrap}.hero-stat b{display:block;font-size:30px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}.hero-stat span{font-size:13px;color:#9aa6c0}
.demo{background:linear-gradient(160deg,#111a36,#0c1226);border:1px solid rgba(255,255,255,.1);border-radius:22px;box-shadow:0 30px 70px rgba(0,0,0,.4);overflow:hidden}.demo-topbar{display:flex;align-items:center;gap:8px;padding:14px 18px;border-bottom:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.03)}.demo-dot{width:12px;height:12px;border-radius:50%}.demo-title{margin-left:10px;font-size:13px;color:#8fa0c4}.demo-body{padding:26px}.demo-status{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}.demo-status .st{font-size:15px;font-weight:600}.demo-status .pill{padding:6px 14px;border-radius:999px;font-size:13px;background:rgba(255,255,255,.08);color:#8fa0c4}.demo-status .pill.on{background:rgba(0,212,255,.16);color:#8ff0ff}.gauge{position:relative;width:200px;height:200px;margin:0 auto 24px}.gauge svg{width:100%;height:100%;transform:rotate(-90deg)}.gauge .track{fill:none;stroke:rgba(255,255,255,.08);stroke-width:14}.gauge .val{fill:none;stroke:url(#g);stroke-width:14;stroke-linecap:round;transition:stroke-dashoffset 1s ease}.gauge-center{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center}.gauge-center b{font-size:40px;font-weight:800}.gauge-center span{font-size:12px;color:#8fa0c4}.demo-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:22px}.demo-metric{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);border-radius:12px;padding:14px;text-align:center}.demo-metric b{display:block;font-size:20px;color:#8ff0ff}.demo-metric span{font-size:12px;color:#8fa0c4}.demo-node{display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.07);border-radius:12px;padding:12px 16px;margin-bottom:12px;font-size:14px}.demo-node select{background:#1a2444;color:#fff;border:1px solid rgba(255,255,255,.12);border-radius:8px;padding:6px 10px;font-size:13px}.demo-toggle{display:flex;justify-content:space-between;align-items:center;padding:12px 4px;font-size:14px;color:#c6d0e6}.switch{position:relative;width:46px;height:26px;background:rgba(255,255,255,.14);border-radius:999px;transition:.3s}.switch::after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#fff;transition:.3s}.switch.on{background:var(--brand)}.switch.on::after{left:23px}.demo-connect{width:100%;padding:15px;border-radius:14px;font-size:16px;font-weight:700;margin-top:6px}
.section{padding:88px 0}.section-head{text-align:center;max-width:680px;margin:0 auto 54px}.section-tag{display:inline-block;color:var(--brand);font-weight:700;font-size:13px;letter-spacing:1px;margin-bottom:12px}.section-title{font-size:38px;font-weight:800;line-height:1.2;margin-bottom:16px}.section-sub{color:var(--muted);font-size:16px}
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.feature-card{background:var(--card);border-radius:var(--r);padding:28px;box-shadow:var(--shadow2);border:1px solid var(--line);transition:.3s}.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}.feature-ico{width:52px;height:52px;border-radius:14px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px}.feature-card h3{font-size:18px;margin-bottom:10px}.feature-card p{color:var(--muted);font-size:14px}
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.scenario-card{position:relative;background:var(--card);border-radius:var(--r);padding:30px;border:1px solid var(--line);box-shadow:var(--shadow2);transition:.3s;overflow:hidden}.scenario-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}.scenario-card .num{font-size:40px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;opacity:.9}.scenario-card h3{font-size:18px;margin:10px 0}.scenario-card p{color:var(--muted);font-size:14px}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}.price-card{background:var(--card);border-radius:20px;padding:34px;border:1.5px solid var(--line);box-shadow:var(--shadow2);display:flex;flex-direction:column;position:relative;transition:.3s}.price-card.popular{border-color:transparent;background:linear-gradient(var(--card),var(--card)) padding-box,var(--grad) border-box;box-shadow:var(--shadow);transform:scale(1.03)}.price-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:12px;font-weight:700;padding:5px 16px;border-radius:999px}.price-card h3{font-size:18px}.price-amount{margin:18px 0;font-size:44px;font-weight:800}.price-amount small{font-size:15px;color:var(--muted);font-weight:500}.price-card ul{margin:16px 0 26px;flex:1}.price-card ul li{padding:8px 0;font-size:14px;color:var(--muted);display:flex;gap:8px;align-items:flex-start}.price-card ul li::before{content:"✓";color:var(--brand);font-weight:800}
.faq-list{max-width:820px;margin:0 auto}.faq-item{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden}.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;padding:20px 24px;font-size:16px;font-weight:600;text-align:left;color:var(--txt)}.faq-q .ic{transition:.3s;color:var(--brand);font-size:22px;line-height:1}.faq-item.open .faq-q .ic{transform:rotate(45deg)}.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}.faq-a-inner{padding:0 24px 22px;color:var(--muted);font-size:14px}.faq-a-inner ol{padding-left:20px}.faq-a-inner ol li{margin:6px 0}
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.testi-card{background:var(--card);border-radius:var(--r);padding:26px;border:1px solid var(--line);box-shadow:var(--shadow2)}.testi-stars{color:#ffb400;margin-bottom:12px;letter-spacing:2px}.testi-card p{font-size:14px;color:var(--muted);margin-bottom:18px}.testi-user{display:flex;align-items:center;gap:12px}.testi-ava{width:42px;height:42px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}.testi-user b{display:block;font-size:14px}.testi-user span{font-size:12px;color:var(--muted)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.news-card{background:var(--card);border-radius:var(--r);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow2);transition:.3s}.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}.news-card img{height:180px;width:100%;object-fit:cover}.news-card-body{padding:20px}.news-card .tag{font-size:12px;color:var(--brand);font-weight:600}.news-card h3{font-size:16px;margin:8px 0 10px;line-height:1.4}.news-card .date{font-size:12px;color:var(--muted)}
.cta{background:radial-gradient(900px 400px at 50% -20%,rgba(0,212,255,.25),transparent 60%),linear-gradient(160deg,#0a0e1a,#101833);color:#fff;border-radius:28px;padding:70px 40px;text-align:center}.cta h2{font-size:36px;font-weight:800;margin-bottom:16px}.cta p{color:#b9c4dc;margin-bottom:30px;max-width:560px;margin-left:auto;margin-right:auto}
.footer{background:var(--dark);color:#aab4cb;padding:64px 0 30px}.footer-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px}.footer-col a{display:block;padding:5px 0;font-size:14px;transition:.2s}.footer-col a:hover{color:var(--brand2)}.footer-brand p{font-size:14px;margin-top:14px;max-width:280px}.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;text-align:center;font-size:13px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:20px 0;flex-wrap:wrap}.breadcrumb a:hover{color:var(--brand)}.breadcrumb .sep{color:#c3cbda}
.page-hero{background:linear-gradient(160deg,#0a0e1a,#101833);color:#fff;padding:130px 0 70px;text-align:center}.page-hero h1{font-size:42px;font-weight:800;margin-bottom:14px}.page-hero p{color:#b9c4dc;max-width:640px;margin:0 auto}
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.news-list-item{display:flex;gap:20px;background:var(--card);border-radius:var(--r);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow2);transition:.3s}.news-list-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.news-list-item img{width:240px;height:160px;object-fit:cover;flex-shrink:0}.news-list-body{padding:20px;display:flex;flex-direction:column;justify-content:center}.news-list-body .tag{font-size:12px;color:var(--brand);font-weight:600}.news-list-body h3{font-size:17px;margin:8px 0;line-height:1.4}.news-list-body p{font-size:13px;color:var(--muted);margin-bottom:10px}.news-list-body .date{font-size:12px;color:var(--muted)}
.article-wrap{display:grid;grid-template-columns:1fr 320px;gap:40px;align-items:start}.article{background:var(--card);border-radius:var(--r);padding:40px;border:1px solid var(--line);box-shadow:var(--shadow2)}.article .meta{display:flex;gap:14px;color:var(--muted);font-size:13px;margin:16px 0 24px;flex-wrap:wrap}.article .lead{font-size:17px;color:#333c52;border-left:4px solid var(--brand);padding-left:18px;margin-bottom:24px}.article h2{font-size:24px;margin:34px 0 16px;scroll-margin-top:90px}.article p{font-size:15px;color:#3a4356;margin-bottom:16px}.article img{border-radius:14px;margin:18px 0}.article blockquote{background:#f4f7ff;border-radius:12px;padding:18px 22px;margin:20px 0;color:#33415c;font-size:15px;border-left:4px solid var(--brand2)}
.sidebar{position:sticky;top:90px}.side-card{background:var(--card);border-radius:var(--r);border:1px solid var(--line);box-shadow:var(--shadow2);padding:24px;margin-bottom:22px}.side-card h4{font-size:16px;margin-bottom:18px;padding-left:12px;border-left:4px solid var(--brand)}.toc-item{position:relative;padding:6px 0 6px 24px;font-size:14px;color:var(--muted);cursor:pointer;transition:.2s;border-left:2px solid var(--line)}.toc-item::before{content:"";position:absolute;left:-6px;top:50%;transform:translateY(-50%);width:10px;height:10px;border-radius:50%;background:#cbd4e6;border:2px solid #fff;box-shadow:0 0 0 1px var(--line)}.toc-item:hover{color:var(--brand)}.toc-item.active{color:var(--brand);font-weight:700;border-left-color:var(--brand)}.toc-item.active::before{background:var(--brand)}
.hot-item{display:flex;align-items:center;gap:12px;padding:9px 0;border-bottom:1px dashed var(--line);transition:.2s}.hot-item:last-child{border:none}.hot-rank{width:26px;height:26px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#fff;flex-shrink:0;transition:.2s}.hot-rank.r1{background:linear-gradient(135deg,#2f6bff,#00d4ff)}.hot-rank.r2{background:linear-gradient(135deg,#ff8a00,#ffb400)}.hot-rank.r3{background:linear-gradient(135deg,#f6b93b,#fcd770)}.hot-rank.rn{background:#cbd4e6}.hot-item a{font-size:13.5px;line-height:1.4}.hot-item:hover .hot-rank{transform:scale(1.15)}.hot-item:hover a{color:var(--brand)}
.tags{display:flex;flex-wrap:wrap;gap:10px}.tags a{padding:7px 15px;border-radius:999px;background:#f0f4ff;color:#3a5bd0;font-size:13px;border:1px solid transparent;transition:.2s}.tags a:hover{color:var(--brand);border-color:var(--brand);background:#fff}
.comments{margin-top:20px}.comment{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line)}.comment:last-child{border:none}.comment-ava{width:42px;height:42px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}.comment b{font-size:14px;display:block}.comment .c-date{font-size:12px;color:var(--muted)}.comment p{font-size:14px;color:#3a4356;margin-top:6px}
.pager{display:flex;justify-content:space-between;margin-top:30px;gap:12px}.pager a{padding:12px 18px;border:1px solid var(--line);border-radius:12px;font-size:14px;transition:.2s;background:var(--card)}.pager a:hover{border-color:var(--brand);color:var(--brand)}
.dl-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:60px 0}.dl-stats{display:flex;gap:28px;margin:26px 0 30px;flex-wrap:wrap}.dl-stat b{display:block;font-size:26px;font-weight:800}.dl-stat span{font-size:13px;color:var(--muted)}.ver-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.ver-card{background:var(--card);border-radius:18px;padding:30px;border:1.5px solid var(--line);box-shadow:var(--shadow2);display:flex;flex-direction:column}.ver-card .v-name{font-size:20px;font-weight:800}.ver-card .v-size{color:var(--muted);font-size:13px;margin:6px 0 16px}.ver-card ul{margin-bottom:24px;flex:1}.ver-card ul li{padding:6px 0;font-size:14px;color:var(--muted);display:flex;gap:8px}.ver-card ul li::before{content:"✓";color:var(--brand);font-weight:800}
.sys-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.sys-item{background:var(--card);border-radius:14px;padding:22px;border:1px solid var(--line);box-shadow:var(--shadow2)}.sys-item b{display:block;font-size:15px;margin-bottom:6px}.sys-item span{font-size:13px;color:var(--muted)}.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.step-card{background:var(--card);border-radius:var(--r);padding:28px;border:1px solid var(--line);box-shadow:var(--shadow2);position:relative}.step-num{width:44px;height:44px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;margin-bottom:16px}.step-card h3{font-size:17px;margin-bottom:8px}.step-card p{font-size:14px;color:var(--muted)}
.sitemap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}.sitemap-col{background:var(--card);border-radius:var(--r);padding:28px;border:1px solid var(--line);box-shadow:var(--shadow2)}.sitemap-col h3{font-size:17px;margin-bottom:16px;padding-left:12px;border-left:4px solid var(--brand)}.sitemap-col a{display:block;padding:7px 0;font-size:14px;color:var(--muted);transition:.2s}.sitemap-col a:hover{color:var(--brand)}
.err-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:radial-gradient(700px 400px at 50% 20%,rgba(0,212,255,.15),transparent 60%),linear-gradient(160deg,#0a0e1a,#101833);color:#fff;padding:20px}.err-page h1{font-size:110px;font-weight:800;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}.err-page h2{font-size:26px;margin:16px 0 10px}.err-page p{color:#b9c4dc;margin-bottom:30px}
@media(max-width:992px){.nav-menu{position:fixed;top:64px;left:0;right:0;background:var(--dark2);flex-direction:column;align-items:stretch;padding:16px;gap:4px;max-height:0;overflow:hidden;opacity:0;visibility:hidden;transition:.3s}.nav-menu.show{max-height:80vh;overflow-y:auto;opacity:1;visibility:visible}.nav-item>a,.nav-item>button{justify-content:space-between;padding:14px;font-size:16px}.dropdown{position:static;min-width:0;background:rgba(255,255,255,.04);box-shadow:none;opacity:1;visibility:visible;transform:none;max-height:0;overflow:hidden;padding:0;transition:max-height .3s}.nav-item.open .dropdown{max-height:500px;padding:8px}.dropdown a{color:#dfe6f5}.hamburger{display:flex}.hero-inner,.dl-grid{grid-template-columns:1fr;gap:40px}.hero-title{font-size:40px}.features-grid{grid-template-columns:repeat(2,1fr)}.scenario-grid,.testi-grid,.news-grid,.ver-grid,.sys-list,.sitemap-grid{grid-template-columns:repeat(2,1fr)}.steps-grid{grid-template-columns:repeat(2,1fr)}.article-wrap{grid-template-columns:1fr}.sidebar{position:static}.news-list{grid-template-columns:1fr}.footer-inner{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.section{padding:64px 0}.section-title{font-size:30px}.hero{padding:120px 0 64px}.hero-title{font-size:32px}.hero-sub{font-size:16px}.demo-body{padding:18px}.features-grid,.scenario-grid,.testi-grid,.news-grid,.ver-grid,.sys-list,.steps-grid{grid-template-columns:1fr}.pricing-grid{grid-template-columns:1fr;gap:26px}.price-card.popular{transform:none}.news-list-item{flex-direction:column}.news-list-item img{width:100%;height:190px}.article{padding:24px}.cta h2{font-size:28px}.footer-inner{grid-template-columns:1fr}.dl-grid{padding:40px 0}}
@media(max-width:480px){.container{padding:0 16px}.hero-title{font-size:28px}.hero-stats{gap:20px}.gauge{width:160px;height:160px}.btn{padding:12px 22px;font-size:14px}.section-title{font-size:26px}.demo-metrics{grid-template-columns:1fr 1fr 1fr;gap:8px}.demo-metric b{font-size:16px}.news-grid,.news-list{grid-template-columns:1fr}}