*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--primary:#00BFA5;--primary-dark:#00897B;--dark:#0A1A1F;--dark-light:#162A32;--accent:#FF6E40;--radius:0px;--max-w:1140px;--font:Verdana,Geneva,sans-serif}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font);background:var(--dark);color:#C9D1D9;line-height:1.6}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--primary-dark)}
img{max-width:100%;display:block}
ul{list-style:none}
.hzk-container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 24px}
.hzk-header{position:sticky;top:0;z-index:100;background:rgba(13,17,23,.92);backdrop-filter:blur(12px);border-bottom:1px solid #21262d}
.hzk-header .hzk-container{display:flex;align-items:center;justify-content:space-between;height:64px}
.hzk-logo{display:flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:700;color:#fff}
.hzk-logo img{width:32px;height:32px}
.hzk-nav{display:flex;gap:24px}
.hzk-nav a{color:#C9D1D9;font-size:.9375rem;font-weight:500}
.hzk-nav a:hover,.hzk-nav a.active{color:var(--primary)}
.hzk-burger{display:none;background:none;border:none;cursor:pointer;padding:4px}
.hzk-burger span{display:block;width:24px;height:2px;background:#C9D1D9;margin:5px 0;border-radius:2px}
.hzk-hero{padding:92px 0 72px;text-align:center;background:linear-gradient(90deg,rgba(0,191,165,.06) 0%,transparent 70%)}
.hzk-hero h1{font-size:2.75rem;font-weight:800;color:#fff;margin-bottom:16px;line-height:1.15}
.hzk-hero h1 span{color:var(--primary)}
.hzk-hero p{font-size:1.2rem;max-width:640px;margin:0 auto 36px;color:#8B949E}
.hzk-hero-accent{display:inline-block;padding:12px 32px;border-radius:var(--radius);background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:var(--dark);font-weight:700;font-size:1.05rem;letter-spacing:.02em}
.hzk-cta-tagline{text-align:center;font-size:1.25rem;font-weight:600;color:var(--primary);letter-spacing:.01em;margin:0}
section,.hzk-section{padding:72px 0}
.hzk-section-title{text-align:center;font-size:2rem;font-weight:700;color:#fff;margin-bottom:12px}
.hzk-section-sub{text-align:center;color:#8B949E;max-width:640px;margin:0 auto 48px;font-size:1.05rem}
.hzk-features{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.hzk-card{background:var(--dark-light);border:1px solid #21262d;border-radius:var(--radius);padding:36px;transition:border-color .25s,transform .25s}
.hzk-card:hover{border-color:var(--primary);transform:translateY(-4px)}
.hzk-card h3{color:#fff;font-size:1.125rem;margin-bottom:8px}
.hzk-card p{font-size:.9375rem;color:#8B949E}
.hzk-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;counter-reset:step}
.hzk-step{text-align:center}
.hzk-step::before{counter-increment:step;content:counter(step);display:flex;align-items:center;justify-content:center;width:56px;height:56px;margin:0 auto 20px;border-radius:50%;border:2px solid var(--primary);font-size:1.5rem;font-weight:700;color:var(--primary)}
.hzk-step h3{color:#fff;margin-bottom:8px}
.hzk-step p{color:#8B949E;font-size:.9375rem}
.hzk-stats{display:flex;justify-content:center;gap:64px;flex-wrap:wrap;text-align:center}
.hzk-stat strong{display:block;font-size:2.5rem;color:var(--primary);line-height:1.1}
.hzk-stat span{color:#8B949E;font-size:.9375rem}
.hzk-faq-list{max-width:780px;margin:0 auto}
.hzk-faq-item{border-bottom:1px solid #21262d}
.hzk-faq-question{width:100%;background:none;border:none;display:flex;justify-content:space-between;align-items:center;padding:22px 0;cursor:pointer;font-size:1.0625rem;font-weight:600;color:#fff;font-family:var(--font);text-align:left}
.hzk-faq-question::after{content:"+";font-size:1.5rem;color:var(--primary);flex-shrink:0;margin-left:16px}
.hzk-faq-item.open .hzk-faq-question::after{content:"−"}
.hzk-faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease}
.hzk-faq-answer-inner{padding:0 0 22px;color:#8B949E;font-size:.9375rem;line-height:1.7}
.hzk-contact-form{max-width:500px;margin:0 auto}
.hzk-contact-form input,.hzk-contact-form textarea{width:100%;padding:12px 16px;background:var(--dark);border:1px solid #21262d;border-radius:var(--radius);color:#fff;font-size:.9375rem;font-family:var(--font);margin-bottom:12px}
.hzk-contact-form textarea{min-height:120px;resize:vertical}
.hzk-contact-form button{width:100%}
.hzk-usp{background:var(--dark-light);padding:72px 0}
.hzk-usp-list{max-width:700px;margin:0 auto;list-style:none;padding:0}
.hzk-usp-closing{text-align:center;margin-top:24px;color:#8B949E}
.hzk-contact{padding:72px 0}
.hzk-kw-boost{font-size:.75rem;color:#555;padding:1rem 0;border-top:1px solid #21262d}
.hzk-faq{padding:72px 0}
.hzk-content-page{padding:72px 0}
.hzk-nav a.active{color:var(--primary)}
.hzk-usp-point{padding:12px 0;border-bottom:1px solid #21262d;color:#C9D1D9;font-size:.9375rem}
.hzk-cta-banner{text-align:center;padding:48px 0;background:linear-gradient(90deg,rgba(0,191,165,.08) 0%,transparent 100%)}
.hzk-page-hero{padding:80px 0 48px;text-align:center;background:linear-gradient(90deg,rgba(0,191,165,.06) 0%,transparent 70%)}
.hzk-page-title{font-size:2.25rem;font-weight:800;color:#fff;margin-bottom:12px}
.hzk-about-block,.hzk-content-section{max-width:780px;margin:0 auto}
.hzk-about-block h2,.hzk-content-section h2{color:#fff;font-size:1.5rem;margin:32px 0 12px}
.hzk-about-block p,.hzk-content-section p{margin-bottom:16px;color:#C9D1D9;line-height:1.75}
.hzk-timeline{position:relative;padding-left:32px;margin:24px 0}
.hzk-timeline::before{content:"";position:absolute;left:8px;top:0;bottom:0;width:2px;background:#21262d}
.hzk-timeline-item{position:relative;margin-bottom:28px}
.hzk-timeline-item::before{content:"";position:absolute;left:-28px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--primary);border:2px solid var(--dark)}
.hzk-timeline-item h3{color:#fff;font-size:1rem;margin-bottom:4px}
.hzk-timeline-item p{color:#8B949E;font-size:.9375rem}
.hzk-footer{background:var(--dark-light);border-top:1px solid #21262d;padding:48px 0 32px}
.hzk-footer-grid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:40px}
.hzk-footer-col h4{color:#fff;margin-bottom:14px;font-size:.9375rem}
.hzk-footer-col ul li{margin-bottom:8px}
.hzk-footer-col a{color:#8B949E;font-size:.875rem}
.hzk-footer-col a:hover{color:var(--primary)}
.hzk-footer-bottom{margin-top:40px;padding-top:24px;border-top:1px solid #21262d;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:#8B949E;font-size:.8125rem}
@media(max-width:900px){.hzk-features,.hzk-steps{grid-template-columns:repeat(2,1fr)}.hzk-stats{gap:40px}}
@media(max-width:640px){.hzk-hero{padding:64px 0 48px}.hzk-hero h1{font-size:1.85rem}section,.hzk-section{padding:56px 0}.hzk-section-title{font-size:1.5rem}.hzk-features,.hzk-steps{grid-template-columns:1fr}.hzk-stats{gap:32px}.hzk-nav{position:fixed;top:64px;left:0;right:0;bottom:0;background:rgba(13,17,23,.98);flex-direction:column;align-items:center;justify-content:center;gap:32px;transform:translateX(100%);transition:transform .3s}.hzk-nav.open{transform:translateX(0)}.hzk-nav a{font-size:1.25rem}.hzk-burger{display:block}.hzk-footer-grid{flex-direction:column;gap:28px}.hzk-footer-bottom{flex-direction:column;text-align:center}}