:root{
  --bg:#05070f;--bg2:#0a0e1c;--cyan:#00e5ff;--violet:#7c4dff;--magenta:#ff2ec4;--green:#00ff9d;--amber:#ffb300;
  --text:#e8f0ff;--muted:#8a97b5;--glass:rgba(16,22,44,.55);--line:rgba(0,229,255,.18);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;overflow-x:hidden}
::selection{background:var(--cyan);color:#000}
::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:linear-gradient(var(--cyan),var(--violet));border-radius:6px}
a{color:var(--cyan);text-decoration:none}
img{max-width:100%}

#bg{position:fixed;inset:0;z-index:0;pointer-events:none;background:
  radial-gradient(ellipse at 20% 0%, rgba(124,77,255,.18), transparent 50%),
  radial-gradient(ellipse at 80% 20%, rgba(0,229,255,.12), transparent 45%),
  radial-gradient(ellipse at 50% 100%, rgba(255,46,196,.10), transparent 50%),var(--bg)}
#grid{position:fixed;inset:0;z-index:0;pointer-events:none;background-image:
  linear-gradient(rgba(0,229,255,.05) 1px, transparent 1px),
  linear-gradient(90deg, rgba(0,229,255,.05) 1px, transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(ellipse at center, black 30%, transparent 78%);
  mask-image:radial-gradient(ellipse at center, black 30%, transparent 78%)}
canvas{position:fixed;inset:0;z-index:0;pointer-events:none}
.wrap{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:0 24px}

/* Nav */
nav{position:fixed;top:0;left:0;right:0;z-index:50;backdrop-filter:blur(14px);background:rgba(5,7,15,.55);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1200px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:2px;font-size:18px;color:var(--text)}
.logo .dot{width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 16px var(--cyan);animation:pulse 2s infinite}
.logo em{font-style:normal;color:var(--cyan)}
.nav-links{display:flex;gap:24px;font-size:14px;letter-spacing:1px;flex-wrap:wrap}
.nav-links a{color:var(--muted);text-decoration:none;transition:.2s}
.nav-links a:hover,.nav-links a.active{color:var(--cyan);text-shadow:0 0 12px var(--cyan)}
.nav-cta{padding:8px 18px;border:1px solid var(--cyan);border-radius:6px;color:var(--cyan)!important;font-weight:600;text-decoration:none;white-space:nowrap}
.nav-cta:hover{background:rgba(0,229,255,.12)!important}
.nav-toggle{display:none;background:none;border:1px solid var(--line);color:var(--text);font-size:22px;padding:4px 12px;border-radius:6px;cursor:pointer}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 30px;border-radius:8px;font-size:15px;font-weight:700;letter-spacing:1px;cursor:pointer;text-decoration:none;transition:.25s;border:1px solid transparent;font-family:inherit}
.btn-primary{background:linear-gradient(120deg,var(--cyan),var(--violet));color:#001018;box-shadow:0 0 30px rgba(0,229,255,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 44px rgba(124,77,255,.5)}
.btn-ghost{border-color:var(--line);color:var(--text);background:var(--glass)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan)}
.btn-sm{padding:10px 20px;font-size:13.5px}

/* Hero (home) */
.hero{min-height:100vh;display:flex;align-items:center;padding:130px 0 60px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:30px;font-size:13px;letter-spacing:2px;border:1px solid var(--line);background:var(--glass);color:var(--cyan);margin-bottom:26px}
.hero-badge .tick{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green)}
h1{font-size:clamp(38px,6vw,72px);line-height:1.08;font-weight:900;letter-spacing:1px}
h1 .grad{background:linear-gradient(120deg,var(--cyan),var(--violet) 50%,var(--magenta));-webkit-background-clip:text;background-clip:text;color:transparent;animation:gradmove 6s ease infinite}
.sub{color:var(--muted);font-size:clamp(16px,2vw,20px);max-width:680px;margin:24px 0 34px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:50px 0 20px}
.stat{background:var(--glass);padding:26px;text-align:center;backdrop-filter:blur(8px)}
.stat b{display:block;font-size:34px;font-weight:900;background:linear-gradient(120deg,var(--cyan),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat i{font-style:normal;color:var(--muted);font-size:13px;letter-spacing:1px}

/* Page hero (inner pages) */
.page-hero{padding:150px 0 60px;text-align:center}
.page-hero h1{font-size:clamp(30px,5vw,52px);margin-bottom:16px}
.page-hero p{color:var(--muted);max-width:640px;margin:0 auto;font-size:16px}
.breadcrumb{display:flex;gap:8px;align-items:center;justify-content:center;margin-bottom:18px;font-size:13px;color:var(--muted);letter-spacing:1px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb span{color:var(--cyan)}

/* Marquee */
.marquee{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(8,12,26,.6);padding:16px 0;overflow:hidden;position:relative;z-index:2}
.marquee-track{display:flex;gap:44px;white-space:nowrap;animation:scroll 28s linear infinite;width:max-content}
.marquee-track span{color:var(--muted);font-size:14px;letter-spacing:2px;font-weight:600}
.marquee-track span::before{content:"◆";color:var(--cyan);margin-right:16px;font-size:10px;vertical-align:middle}

/* Sections */
section{padding:80px 0}
.sec-head{text-align:center;margin-bottom:52px}
.sec-tag{color:var(--cyan);letter-spacing:3px;font-size:13px;font-weight:700;margin-bottom:12px}
h2{font-size:clamp(26px,4vw,40px);font-weight:900;letter-spacing:1px}
h3{letter-spacing:.5px}
.sec-sub{color:var(--muted);margin-top:14px;max-width:600px;margin-left:auto;margin-right:auto}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{position:relative;border:1px solid var(--line);border-radius:16px;background:var(--glass);padding:30px 26px;backdrop-filter:blur(10px);transition:.3s;overflow:hidden}
.card::before{content:"";position:absolute;inset:0;opacity:0;transition:.3s;background:radial-gradient(circle at 30% 0%, rgba(0,229,255,.14), transparent 60%)}
.card:hover{transform:translateY(-6px);border-color:rgba(0,229,255,.5);box-shadow:0 20px 50px rgba(0,0,0,.5)}
.card:hover::before{opacity:1}
.card .icon{width:54px;height:54px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:25px;margin-bottom:18px;background:rgba(0,229,255,.08);border:1px solid var(--line)}
.card h3{font-size:18px;margin-bottom:11px;letter-spacing:1px}
.card p{color:var(--muted);font-size:13.5px}
.card .tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}
.card .link{display:inline-block;margin-top:16px;font-size:13px;font-weight:600;color:var(--cyan)}
.tag{font-size:11px;padding:3px 10px;border-radius:20px;border:1px solid var(--line);color:var(--muted);letter-spacing:1px}

/* Why */
.why{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.why-item{border:1px solid var(--line);border-radius:14px;padding:28px 24px;background:var(--glass);transition:.3s}
.why-item:hover{border-color:rgba(0,255,157,.4);transform:translateY(-4px)}
.why-item .num{font-size:13px;font-weight:800;color:var(--green);letter-spacing:2px;margin-bottom:14px}
.why-item h3{font-size:17px;margin-bottom:10px}
.why-item p{color:var(--muted);font-size:13.5px}

/* Solutions */
.solutions{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.solution{position:relative;border:1px solid var(--line);border-radius:20px;padding:40px 34px;overflow:hidden;background:var(--glass)}
.solution::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 20% 0%, rgba(124,77,255,.18), transparent 55%);opacity:.7}
.solution.crypto::before{background:radial-gradient(circle at 20% 0%, rgba(255,179,0,.16), transparent 55%)}
.solution .badge{display:inline-block;padding:5px 14px;border-radius:20px;font-size:12px;letter-spacing:2px;background:rgba(0,229,255,.1);border:1px solid var(--line);color:var(--cyan);margin-bottom:18px}
.solution.crypto .badge{color:var(--amber);border-color:rgba(255,179,0,.3);background:rgba(255,179,0,.08)}
.solution h3{font-size:24px;margin-bottom:12px}
.solution > p{color:var(--muted);font-size:14px;margin-bottom:22px}
.feat-list{list-style:none;display:grid;gap:11px}
.feat-list li{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--text)}
.feat-list li::before{content:"▸";color:var(--cyan);font-weight:800;flex-shrink:0}
.solution.crypto .feat-list li::before{color:var(--amber)}

/* Stack */
.stack-groups{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.stack{border:1px solid var(--line);border-radius:14px;padding:26px 24px;background:var(--glass)}
.stack h3{font-size:15px;color:var(--cyan);letter-spacing:2px;margin-bottom:16px}
.stack .items{display:flex;flex-wrap:wrap;gap:8px}
.stack .items span{font-size:12px;padding:6px 12px;border-radius:6px;border:1px solid var(--line);color:var(--muted);background:rgba(0,229,255,.04);transition:.2s}
.stack .items span:hover{color:var(--cyan);border-color:rgba(0,229,255,.4)}

/* Process */
.process{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;counter-reset:step}
.step{position:relative;border:1px solid var(--line);border-radius:14px;padding:26px 20px;background:var(--glass);transition:.3s}
.step:hover{border-color:rgba(0,229,255,.45);transform:translateY(-4px)}
.step::before{counter-increment:step;content:"0" counter(step);font-size:38px;font-weight:900;color:transparent;-webkit-text-stroke:1px var(--cyan);opacity:.7}
.step h4{margin:12px 0 8px;letter-spacing:1px;font-size:15px}
.step p{color:var(--muted);font-size:12.5px}

/* Cases */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--glass);transition:.3s}
.case:hover{transform:translateY(-6px);border-color:rgba(0,229,255,.45)}
.case .cover{height:150px;display:flex;align-items:center;justify-content:center;font-size:44px;background:linear-gradient(135deg,rgba(0,229,255,.12),rgba(124,77,255,.14));border-bottom:1px solid var(--line)}
.case .body{padding:24px}
.case .cat{font-size:11px;letter-spacing:2px;color:var(--cyan);margin-bottom:8px}
.case h3{font-size:17px;margin-bottom:10px}
.case p{color:var(--muted);font-size:13px;margin-bottom:16px}
.case .metric{display:flex;gap:18px}
.case .metric div{flex:1;text-align:center;border:1px solid var(--line);border-radius:8px;padding:10px}
.case .metric b{display:block;font-size:18px;color:var(--green)}
.case .metric i{font-style:normal;font-size:11px;color:var(--muted)}

/* Plans */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.plan{border:1px solid var(--line);border-radius:18px;padding:36px 30px;background:var(--glass);position:relative;display:flex;flex-direction:column}
.plan.hot{border-color:rgba(0,229,255,.6);background:linear-gradient(160deg,rgba(0,229,255,.1),rgba(124,77,255,.08))}
.plan .hot-tag{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:linear-gradient(120deg,var(--cyan),var(--violet));color:#001018;font-size:11px;font-weight:800;letter-spacing:2px;padding:4px 16px;border-radius:20px}
.plan h3{font-size:19px;margin-bottom:6px}
.plan .desc{color:var(--muted);font-size:13px;margin-bottom:20px}
.plan ul{list-style:none;display:grid;gap:10px;margin-bottom:28px;flex:1}
.plan ul li{font-size:13px;color:var(--text);display:flex;gap:8px;align-items:flex-start}
.plan ul li::before{content:"✓";color:var(--green);font-weight:800;flex-shrink:0}
.plan .btn{justify-content:center}

/* Quotes */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.quote{border:1px solid var(--line);border-radius:16px;padding:30px 26px;background:var(--glass);position:relative}
.quote::before{content:"“";position:absolute;top:8px;left:18px;font-size:60px;color:var(--cyan);opacity:.3;font-family:Georgia,serif;line-height:1}
.quote p{font-size:14px;color:var(--text);margin-bottom:20px;position:relative}
.quote .who{display:flex;align-items:center;gap:12px}
.quote .avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--violet));display:flex;align-items:center;justify-content:center;font-weight:800;color:#001018}
.quote .who b{display:block;font-size:14px}
.quote .who i{font-style:normal;font-size:12px;color:var(--muted)}

/* FAQ */
.faq{max-width:760px;margin:0 auto;display:grid;gap:14px}
.faq-item{border:1px solid var(--line);border-radius:12px;background:var(--glass);overflow:hidden}
.faq-q{padding:20px 24px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:600;font-size:15px;transition:.2s}
.faq-q:hover{color:var(--cyan)}
.faq-q .arrow{transition:.3s;color:var(--cyan)}
.faq-item.open .faq-q .arrow{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;padding:0 24px}
.faq-item.open .faq-a{max-height:300px;padding-bottom:20px}
.faq-a p{color:var(--muted);font-size:13.5px}

/* Contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start}
.contact-info h3{font-size:22px;margin-bottom:14px}
.contact-info p{color:var(--muted);font-size:14px;margin-bottom:26px}
.contact-methods{display:grid;gap:14px}
.cm{display:flex;align-items:center;gap:14px;border:1px solid var(--line);border-radius:12px;padding:16px 18px;background:var(--glass)}
.cm .ico{width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;background:rgba(0,229,255,.08);border:1px solid var(--line)}
.cm b{display:block;font-size:14px}
.cm i{font-style:normal;font-size:12.5px;color:var(--muted)}
.form{border:1px solid var(--line);border-radius:16px;padding:34px 30px;background:var(--glass)}
.form label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;letter-spacing:1px}
.form input,.form select,.form textarea{width:100%;padding:12px 14px;margin-bottom:18px;border-radius:8px;border:1px solid var(--line);background:rgba(5,7,15,.6);color:var(--text);font-size:14px;font-family:inherit;outline:none;transition:.2s}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(0,229,255,.1)}
.form textarea{resize:vertical;min-height:100px}
.form .btn{width:100%;justify-content:center}
.form-msg{display:none;text-align:center;color:var(--green);font-size:14px;margin-top:14px}

/* CTA */
.cta-banner{border:1px solid var(--line);border-radius:20px;padding:64px 40px;text-align:center;background:radial-gradient(circle at 50% 0%, rgba(124,77,255,.22), transparent 60%),var(--glass);position:relative;overflow:hidden}
.cta-banner h2{margin-bottom:16px}
.cta-banner p{color:var(--muted);max-width:560px;margin:0 auto 32px}

/* Footer */
footer{border-top:1px solid var(--line);padding:56px 0 32px;background:rgba(5,7,15,.6)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:36px;margin-bottom:36px}
.foot-grid h4{font-size:14px;letter-spacing:2px;margin-bottom:16px;color:var(--text)}
.foot-grid a{display:block;color:var(--muted);text-decoration:none;font-size:13px;margin-bottom:10px;transition:.2s}
.foot-grid a:hover{color:var(--cyan)}
.foot-brand p{color:var(--muted);font-size:13px;margin-top:14px;max-width:280px}
.foot-bottom{border-top:1px solid var(--line);padding-top:24px;text-align:center;color:var(--muted);font-size:12.5px}

/* Blog */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--glass);transition:.3s;display:flex;flex-direction:column}
.post:hover{transform:translateY(-6px);border-color:rgba(0,229,255,.45)}
.post .cover{height:140px;display:flex;align-items:center;justify-content:center;font-size:40px;background:linear-gradient(135deg,rgba(0,229,255,.12),rgba(124,77,255,.14));border-bottom:1px solid var(--line)}
.post .body{padding:22px;display:flex;flex-direction:column;flex:1}
.post .meta{font-size:11px;letter-spacing:1px;color:var(--cyan);margin-bottom:8px}
.post h3{font-size:16px;margin-bottom:10px;line-height:1.4}
.post p{color:var(--muted);font-size:13px;margin-bottom:16px;flex:1}
.post .more{font-size:13px;font-weight:600;color:var(--cyan)}

/* Prose (blog article) */
.prose{max-width:760px;margin:0 auto}
.prose h2{font-size:26px;margin:36px 0 16px}
.prose h3{font-size:19px;margin:28px 0 12px}
.prose p{color:var(--muted);font-size:15px;margin-bottom:18px}
.prose ul,.prose ol{margin:0 0 18px 22px;color:var(--muted);font-size:15px}
.prose li{margin-bottom:8px}
.prose .lead{font-size:17px;color:var(--text)}

/* Service detail */
.detail-grid{display:grid;grid-template-columns:1fr 300px;gap:36px;align-items:start}
.detail-main .feat-list{font-size:14.5px}
.detail-main h2{font-size:26px;margin:30px 0 16px}
.detail-main p{color:var(--muted);font-size:14.5px;margin-bottom:16px}
.sidebar{position:sticky;top:100px;display:grid;gap:16px}
.side-card{border:1px solid var(--line);border-radius:14px;padding:22px;background:var(--glass)}
.side-card h4{font-size:14px;letter-spacing:1px;margin-bottom:14px;color:var(--cyan)}
.side-card a{display:block;font-size:13px;color:var(--muted);padding:7px 0;border-bottom:1px solid rgba(0,229,255,.08);transition:.2s}
.side-card a:last-child{border-bottom:none}
.side-card a:hover{color:var(--cyan);padding-left:6px}

/* Reveal */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .7s ease, transform .7s ease}
.reveal.visible{opacity:1;transform:none}

@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
@keyframes gradmove{0%,100%{filter:hue-rotate(0)}50%{filter:hue-rotate(30deg)}}
@keyframes scroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

@media(max-width:980px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .why{grid-template-columns:1fr}
  .solutions{grid-template-columns:1fr}
  .stack-groups{grid-template-columns:1fr}
  .process{grid-template-columns:repeat(2,1fr)}
  .cases{grid-template-columns:1fr}
  .plans{grid-template-columns:1fr}
  .quotes{grid-template-columns:1fr}
  .contact{grid-template-columns:1fr}
  .blog-grid{grid-template-columns:1fr}
  .detail-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .nav-links{display:none;position:absolute;top:60px;left:0;right:0;background:rgba(5,7,15,.97);flex-direction:column;padding:20px 24px;gap:16px;border-bottom:1px solid var(--line)}
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
  .cards{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .process{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}