:root{--blue:#1A6DF5;--cyan:#00D4FF;--purple:#7C3AED;--amber:#F59E0B;--green:#10B981;--bg:#0A0E1A;--bg2:#111827;--card:#1F2937;--card2:rgba(255,255,255,.05);--tx:#F9FAFB;--tx2:#9CA3AF;--tx3:#6B7280;--r:12px;--r2:8px;--r3:24px}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Inter","SF Pro Display",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--tx);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.grad-text{background:linear-gradient(90deg,var(--cyan),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:var(--r2);font-weight:600;font-size:16px;cursor:pointer;transition:transform .25s ease,box-shadow .25s ease,background .25s ease;border:0;line-height:1}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;box-shadow:0 8px 24px rgba(26,109,245,.35)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 32px rgba(26,109,245,.5)}
.btn-cta{background:linear-gradient(135deg,var(--amber),#F97316);color:#fff;box-shadow:0 8px 24px rgba(245,158,11,.35);animation:pulse 2.2s infinite}
.btn-cta:hover{transform:translateY(-3px) scale(1.03);box-shadow:0 14px 34px rgba(245,158,11,.55)}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.25);color:var(--tx)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-3px)}
.btn-disabled{background:#374151;color:#9CA3AF;cursor:not-allowed}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(245,158,11,.5)}70%{box-shadow:0 0 0 16px rgba(245,158,11,0)}100%{box-shadow:0 0 0 0 rgba(245,158,11,0)}}
.announce{background:#0B1220;border-bottom:1px solid rgba(255,255,255,.06);color:#E5E7EB;font-size:13px;position:relative;z-index:60}
.announce-inner{display:flex;align-items:center;justify-content:center;gap:10px;padding:8px 40px;text-align:center;position:relative}
.announce-close{position:absolute;right:16px;top:50%;transform:translateY(-50%);background:none;border:none;color:#9CA3AF;font-size:18px;cursor:pointer;line-height:1}
nav{position:sticky;top:0;z-index:50;height:64px;background:rgba(10,14,26,.72);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.06);transition:background .3s ease}
nav.scrolled{background:rgba(10,14,26,.96)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700}
.brand img{width:34px;height:34px;border-radius:8px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{font-size:15px;color:var(--tx2);transition:color .2s;position:relative}
.nav-links a:hover,.nav-links a.active{color:var(--tx)}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:linear-gradient(90deg,var(--cyan),var(--blue));border-radius:2px}
.nav-cta{margin-left:8px}
.hamburger{display:none;background:none;border:none;width:34px;height:34px;cursor:pointer;flex-direction:column;justify-content:center;gap:5px}
.hamburger span{display:block;height:2px;background:#fff;border-radius:2px;transition:.3s}
.hero{position:relative;min-height:calc(100vh - 64px);display:flex;align-items:center;overflow:hidden;padding:80px 0}
.hero-bg{position:absolute;inset:0;background:radial-gradient(circle at 20% 20%,rgba(26,109,245,.25),transparent 45%),radial-gradient(circle at 80% 70%,rgba(124,58,237,.22),transparent 45%),radial-gradient(circle at 60% 40%,rgba(0,212,255,.12),transparent 40%)}
.hero-particles{position:absolute;inset:0;overflow:hidden}
.particle{position:absolute;width:3px;height:3px;background:var(--cyan);border-radius:50%;opacity:.5;animation:float 8s infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-30px)}}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(0,212,255,.1);border:1px solid rgba(0,212,255,.3);color:var(--cyan);padding:6px 14px;border-radius:999px;font-size:13px;margin-bottom:22px}
.hero h1{font-size:52px;line-height:1.12;font-weight:700;margin-bottom:20px;letter-spacing:-.5px}
.hero h1 em{font-style:normal}
.hero-sub{font-size:19px;color:var(--tx2);margin-bottom:30px;max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:28px;align-items:center}
.hero-trust{display:flex;flex-wrap:wrap;gap:22px;color:var(--tx2);font-size:14px}
.hero-trust b{color:var(--tx);font-size:16px}
.scroll-hint{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);color:var(--tx3);font-size:13px;text-align:center;animation:bounce 2s infinite}
@keyframes bounce{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}
.sim-wrap{display:flex;justify-content:center}
.phone{width:320px;background:#0F1626;border:1px solid rgba(255,255,255,.1);border-radius:36px;padding:16px;box-shadow:0 30px 80px rgba(0,0,0,.5),0 0 60px rgba(26,109,245,.2);position:relative}
.phone-notch{position:absolute;top:16px;left:50%;transform:translateX(-50%);width:110px;height:22px;background:#000;border-radius:999px}
.phone-screen{background:#111827;border-radius:24px;padding:46px 16px 16px;min-height:520px}
.phone-status{display:flex;justify-content:space-between;font-size:11px;color:var(--tx2);margin-bottom:14px}
.app-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.app-head .logo{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700}
.app-head .logo img{width:24px;height:24px;border-radius:6px}
.app-head .vip{font-size:11px;background:rgba(245,158,11,.15);color:var(--amber);padding:3px 8px;border-radius:999px}
.gauge{width:200px;height:200px;margin:6px auto 14px;border-radius:50%;position:relative;background:conic-gradient(var(--green) 0 78%,rgba(255,255,255,.08) 78% 100%)}
.gauge::before{content:"";position:absolute;inset:14px;background:#111827;border-radius:50%}
.gauge-inner{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:2}
.gauge-inner .num{font-size:44px;font-weight:700;color:var(--green);font-family:"JetBrains Mono",monospace;line-height:1}
.gauge-inner .unit{font-size:13px;color:var(--tx2)}
.node-row{display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:12px 14px;margin-bottom:10px;font-size:13px}
.node-row .flag{display:flex;align-items:center;gap:8px}
.node-row .dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green)}
.node-row .ping{color:var(--green);font-family:"JetBrains Mono",monospace}
.speed-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px}
.speed-box{background:rgba(255,255,255,.04);border-radius:12px;padding:12px;text-align:center}
.speed-box .v{font-size:20px;font-weight:700;color:var(--cyan);font-family:"JetBrains Mono",monospace}
.speed-box .l{font-size:11px;color:var(--tx3)}
.boost-btn{width:100%;background:linear-gradient(135deg,var(--green),#059669);color:#fff;border:0;border-radius:12px;padding:14px;font-size:16px;font-weight:700;cursor:pointer;box-shadow:0 8px 20px rgba(16,185,129,.35);animation:pulse-green 2s infinite}
@keyframes pulse-green{0%{box-shadow:0 0 0 0 rgba(16,185,129,.5)}70%{box-shadow:0 0 0 14px rgba(16,185,129,0)}100%{box-shadow:0 0 0 0 rgba(16,185,129,0)}}
.section{padding:96px 0}
.section-head{text-align:center;max-width:700px;margin:0 auto 56px}
.section-head h2{font-size:38px;font-weight:700;margin-bottom:14px;line-height:1.2}
.section-head p{color:var(--tx2);font-size:17px}
.trust-strip{background:var(--bg2);border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.05)}
.trust-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:24px;padding:40px 0}
.trust-item{text-align:center;padding:20px;border-radius:var(--r);transition:transform .3s,box-shadow .3s;background:var(--card2)}
.trust-item:hover{transform:translateY(-6px);box-shadow:0 12px 28px rgba(0,0,0,.35)}
.trust-item .n{font-size:32px;font-weight:700;color:var(--cyan);font-family:"JetBrains Mono",monospace}
.trust-item .l{font-size:13px;color:var(--tx2);margin-top:4px}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.feature-card{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:var(--r3);padding:32px 28px;transition:transform .3s,box-shadow .3s,border-color .3s}
.feature-card:hover{transform:translateY(-8px);box-shadow:0 20px 44px rgba(0,0,0,.45);border-color:rgba(0,212,255,.4)}
.feature-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:18px;background:linear-gradient(135deg,rgba(26,109,245,.2),rgba(0,212,255,.15));border:1px solid rgba(0,212,255,.2)}
.feature-card h3{font-size:21px;font-weight:600;margin-bottom:10px}
.feature-card p{color:var(--tx2);font-size:15px}
.data-section{background:var(--bg2)}
.data-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.data-card{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:var(--r3);padding:30px;text-align:center;position:relative;overflow:hidden}
.data-card .ico{font-size:28px;margin-bottom:10px}
.data-card .v{font-size:40px;font-weight:700;color:var(--cyan);font-family:"JetBrains Mono",monospace}
.data-card .u{font-size:15px;color:var(--tx2);margin-left:4px}
.data-card .d{color:var(--tx3);font-size:14px;margin-top:6px}
.data-card::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 0%,rgba(0,212,255,.12),transparent 60%);pointer-events:none}
.scenario-list{display:flex;flex-direction:column;gap:32px}
.scenario{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:var(--r3);padding:36px}
.scenario:nth-child(even){direction:rtl}
.scenario:nth-child(even)>*{direction:ltr}
.scenario .illu{background:linear-gradient(135deg,rgba(26,109,245,.2),rgba(124,58,237,.15));border-radius:var(--r3);min-height:200px;display:flex;align-items:center;justify-content:center;font-size:64px}
.scenario h3{font-size:24px;font-weight:600;margin-bottom:8px}
.scenario .pain{color:var(--amber);font-size:14px;margin-bottom:10px}
.scenario p{color:var(--tx2);font-size:15px;margin-bottom:12px}
.scenario .effect{display:inline-block;background:rgba(16,185,129,.15);color:var(--green);padding:6px 12px;border-radius:999px;font-size:13px}
.tech-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tech-card{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:var(--r3);padding:28px;text-align:center;transition:transform .3s,border-color .3s}
.tech-card:hover{transform:translateY(-6px);border-color:rgba(124,58,237,.4)}
.tech-card .ico{font-size:30px;margin-bottom:12px}
.tech-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.tech-card p{color:var(--tx2);font-size:14px}
.tech-card.planning{border-style:dashed;border-color:rgba(107,114,128,.5);opacity:.85}
.tag-plan{display:inline-block;font-size:11px;color:var(--tx3);border:1px dashed var(--tx3);padding:2px 8px;border-radius:999px;margin-top:8px}
.timeline{position:relative;max-width:760px;margin:0 auto;padding-left:36px}
.timeline::before{content:"";position:absolute;left:10px;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--cyan),var(--blue),var(--purple))}
.tl-item{position:relative;margin-bottom:32px}
.tl-item::before{content:"";position:absolute;left:-32px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.tl-card{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:var(--r3);padding:22px 24px}
.tl-date{font-size:13px;color:var(--tx3);margin-bottom:6px}
.tl-title{font-size:19px;font-weight:600;margin-bottom:8px}
.tl-title .badge{font-size:11px;padding:2px 8px;border-radius:999px;margin-left:8px;vertical-align:middle}
.badge-new{background:rgba(245,158,11,.18);color:var(--amber);animation:pulse 1.6s infinite}
.badge-imp{background:rgba(26,109,245,.18);color:var(--cyan)}
.badge-plan{background:rgba(107,114,128,.2);color:var(--tx3)}
.tl-card p{color:var(--tx2);font-size:14px}
.testi-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.testi-card{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:var(--r3);padding:28px}
.testi-head{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--purple));display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px}
.testi-head .name{font-weight:600}
.testi-head .time{font-size:12px;color:var(--tx3)}
.stars{color:var(--amber);margin-bottom:10px;font-size:15px}
.testi-card p{color:var(--tx2);font-size:15px}
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:var(--r3);margin-bottom:14px;overflow:hidden}
.faq-q{width:100%;background:none;border:0;color:var(--tx);font-size:17px;font-weight:600;padding:20px 24px;text-align:left;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-q .ic{transition:transform .3s;font-size:22px;color:var(--cyan);flex-shrink:0}
.faq-item.open .faq-q .ic{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;color:var(--tx2);font-size:15px;padding:0 24px}
.faq-item.open .faq-a{max-height:600px;padding:0 24px 20px}
.faq-a ol{padding-left:20px;margin-top:8px}
.faq-a li{margin-bottom:6px}
.cta-section{background:linear-gradient(135deg,var(--blue),var(--purple));border-radius:var(--r3);padding:64px 48px;text-align:center;position:relative;overflow:hidden}
.cta-section::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 0%,rgba(255,255,255,.15),transparent 55%)}
.cta-section>*{position:relative}
.cta-section h2{font-size:36px;font-weight:700;margin-bottom:12px}
.cta-section p{font-size:17px;margin-bottom:28px;opacity:.9}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
.dl-card{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:var(--r3);padding:32px;text-align:center;transition:transform .3s}
.dl-card:hover{transform:translateY(-6px)}
.dl-card .pico{font-size:40px;margin-bottom:14px}
.dl-card h3{font-size:20px;font-weight:600;margin-bottom:6px}
.dl-card .meta{color:var(--tx3);font-size:13px;margin-bottom:18px}
.dl-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
footer{background:#070B14;border-top:1px solid rgba(255,255,255,.06);padding:56px 0 28px;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;margin-bottom:40px}
.footer-brand p{color:var(--tx2);font-size:14px;margin-top:12px;max-width:280px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col a{display:block;color:var(--tx2);font-size:14px;margin-bottom:10px;transition:color .2s}
.footer-col a:hover{color:var(--cyan)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding-top:24px;text-align:center;color:var(--tx3);font-size:13px}
.breadcrumb{font-size:14px;color:var(--tx2);margin:24px 0}
.breadcrumb a{color:var(--cyan)}
.page-title{font-size:34px;font-weight:700;margin-bottom:10px}
.page-head{padding:48px 0 24px;border-bottom:1px solid rgba(255,255,255,.06);margin-bottom:48px}
.article{max-width:820px;margin:0 auto}
.article-meta{color:var(--tx3);font-size:14px;margin-bottom:20px}
.article h2{font-size:26px;font-weight:700;margin:32px 0 14px;line-height:1.3}
.article p{color:#D1D5DB;font-size:16px;margin-bottom:18px;line-height:1.8}
.article img{border-radius:var(--r3);margin:20px 0}
.article .cover{margin-bottom:24px}
.article-nav{display:flex;justify-content:space-between;margin-top:40px;padding-top:24px;border-top:1px solid rgba(255,255,255,.06);gap:16px}
.article-nav a{color:var(--cyan);font-size:15px}
.news-list{display:flex;flex-direction:column;gap:20px}
.news-item{display:grid;grid-template-columns:220px 1fr;gap:24px;background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:var(--r3);overflow:hidden;transition:transform .3s}
.news-item:hover{transform:translateY(-4px)}
.news-item img{width:220px;height:140px;object-fit:cover}
.news-item .body{padding:20px}
.news-item .cat{font-size:12px;color:var(--cyan);margin-bottom:6px}
.news-item h3{font-size:19px;font-weight:600;margin-bottom:8px}
.news-item p{color:var(--tx2);font-size:14px}
.sitemap-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.sitemap-list li{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:var(--r);padding:16px;transition:transform .2s}
.sitemap-list li:hover{transform:translateX(6px);border-color:var(--cyan)}
.sitemap-list a{color:var(--tx);font-size:15px;display:flex;align-items:center;gap:8px}
.sitemap-list .dot{width:6px;height:6px;background:var(--cyan);border-radius:50%}
.error-page{min-height:70vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px 24px}
.error-page .code{font-size:120px;font-weight:700;line-height:1;background:linear-gradient(135deg,var(--blue),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}
.error-page h2{font-size:28px;margin:16px 0 10px}
.error-page p{color:var(--tx2);margin-bottom:28px}
.top-btn{position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;background:var(--blue);color:#fff;border:0;cursor:pointer;font-size:20px;display:none;z-index:40;box-shadow:0 8px 20px rgba(26,109,245,.4)}
@media(max-width:992px){.hero-grid{grid-template-columns:1fr;gap:48px}.hero h1{font-size:40px}.features-grid,.tech-grid,.data-grid,.dl-grid{grid-template-columns:repeat(2,1fr)}.trust-grid{grid-template-columns:repeat(3,1fr)}.scenario{grid-template-columns:1fr}.scenario:nth-child(even){direction:ltr}.footer-grid{grid-template-columns:1fr 1fr}.sitemap-list{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.nav-links{position:fixed;top:64px;right:-100%;width:260px;height:calc(100vh - 64px);background:var(--bg);flex-direction:column;padding:30px;gap:20px;transition:right .3s;z-index:49}.nav-links.open{right:0}.hamburger{display:flex}.nav-cta{display:none}.features-grid,.tech-grid,.data-grid,.dl-grid,.testi-grid{grid-template-columns:1fr}.trust-grid{grid-template-columns:repeat(2,1fr)}.hero h1{font-size:34px}.hero-sub{font-size:16px}.section{padding:64px 0}.section-head h2{font-size:30px}.cta-section{padding:44px 24px}.cta-section h2{font-size:28px}.news-item{grid-template-columns:1fr}.news-item img{width:100%;height:180px}.footer-grid{grid-template-columns:1fr}.container{padding:0 18px}}
@media(max-width:480px){.hero h1{font-size:28px}.phone{width:280px}.trust-grid{grid-template-columns:1fr 1fr;gap:12px}.trust-item .n{font-size:24px}.btn{padding:11px 20px;font-size:14px}.section-head h2{font-size:26px}.sitemap-list{grid-template-columns:1fr}.error-page .code{font-size:80px}}