:root{
  --bg:#ffffff;
  --bg-soft:#f6f7fb;
  --bg-card:#ffffff;
  --text:#0f1220;
  --muted:#1d2233;
  --accent:#ff7a1a;
  --accent-2:#ff3d6e;
  --accent-3:#ffc46b;
  --border:rgba(15,18,32,0.12);
  --shadow:0 14px 36px rgba(15,18,32,0.12);
  --radius:18px;
  --radius-lg:26px;
  --radius-full:999px;
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:"Space Grotesk","Noto Sans SC",system-ui,sans-serif;background:radial-gradient(circle at 12% 0%,rgba(255,122,26,0.08),transparent 45%),radial-gradient(circle at 90% 10%,rgba(255,61,110,0.08),transparent 50%),var(--bg);color:var(--text);line-height:1.7}
img{max-width:100%;display:block}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
a{text-decoration:none;color:inherit}

.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,0.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 20px}
.logo{display:flex;align-items:center;gap:12px}
.logo-img{height:26px;width:auto;display:block}
.logo-text{font-weight:700;letter-spacing:0.5px}

.main-nav{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;flex-direction:column;gap:6px;background:none;border:none;cursor:pointer}
.nav-toggle span{width:26px;height:2px;background:#0f1220;transition:0.3s}
.nav-list{display:flex;gap:10px;align-items:center;list-style:none}
.nav-list a{padding:10px 12px;border-radius:12px;color:#0f1220;font-size:15px;transition:0.3s;letter-spacing:0.2px}
.nav-list a:hover,.nav-list a.active{color:#ffffff;background:linear-gradient(135deg,#ff7a1a,#ff3d6e)}

.nav-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.55);opacity:0;pointer-events:none;transition:0.3s;z-index:900}
.nav-open .nav-overlay{opacity:1;pointer-events:auto}

.hero{position:relative;overflow:hidden;padding:100px 0 70px;background:radial-gradient(circle at 18% 10%,rgba(255,122,26,0.18),transparent 50%),radial-gradient(circle at 82% 0%,rgba(255,61,110,0.14),transparent 55%),linear-gradient(180deg,#ffffff 0%,#f6f7fb 100%)}
.hero-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:50px;align-items:center}
.hero-badge{display:inline-flex;padding:7px 16px;border-radius:var(--radius-full);background:linear-gradient(135deg,rgba(255,122,26,0.16),rgba(255,61,110,0.12));color:#0f1220;font-size:13px;font-weight:700;letter-spacing:0.3px;margin-bottom:16px;border:1px solid rgba(15,18,32,0.12)}
.hero h1{font-size:clamp(2.4rem,4vw,3.6rem);margin-bottom:12px}
.hero-desc{color:#1f2638;margin-bottom:20px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.hero-note{color:#2c3347;font-size:14px;margin-top:6px}
.btn{padding:12px 20px;border-radius:14px;font-weight:600;border:none;cursor:pointer;display:inline-flex;align-items:center;justify-content:center}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 12px 30px rgba(255,106,0,0.35);position:relative;overflow:hidden}
.btn-primary::after{content:"";position:absolute;inset:-40%;background:radial-gradient(circle,rgba(255,255,255,0.35),transparent 60%);opacity:0;transition:0.3s}
.btn-primary:hover{transform:translateY(-2px)}
.btn-primary:hover::after{opacity:1}
.btn-ghost{background:#ffffff;color:#0f1220;border:1px solid var(--border)}
.hero-kpis{display:flex;gap:16px;flex-wrap:wrap}
.kpi{background:rgba(255,255,255,0.06);border:1px solid var(--border);border-radius:14px;padding:10px 14px;min-width:120px}
.kpi strong{display:block;font-size:18px}
.kpi span{color:#2b3246;font-size:12px}

.hero-visual{position:relative}
.hero-frame{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);position:relative}
.hero-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(255,255,255,0.08),transparent 40%);mix-blend-mode:screen;pointer-events:none;transform:translateX(var(--mx,0px))}
.hero-orbs span{position:absolute;border-radius:50%;filter:blur(6px);opacity:0.6}
.hero-orbs span:nth-child(1){width:180px;height:180px;background:rgba(255,106,0,0.5);left:-40px;top:20%}
.hero-orbs span:nth-child(2){width:260px;height:260px;background:rgba(255,45,85,0.4);right:-60px;top:10%}
.hero-orbs span:nth-child(3){width:160px;height:160px;background:rgba(255,179,71,0.45);right:10%;bottom:-30px}

.section{padding:70px 0}
.section-title{text-align:center;font-size:clamp(1.8rem,3vw,2.4rem);margin-bottom:10px}
.section-sub{text-align:center;color:#2a3145;margin-bottom:30px}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;margin-bottom:30px}
.section-head p{color:#2a3145}

.core{background:var(--bg-soft)}
.core-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.core-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:18px}
.core-card h3{margin-bottom:6px}
.core-card p{color:#2b3246}

.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.product-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:14px;transition:0.3s}
.product-card:hover{transform:translateY(-6px);box-shadow:0 22px 60px rgba(255,106,0,0.25)}
.product-media{background:#f4f6fb;border-radius:14px;padding:10px;margin-bottom:10px;aspect-ratio:3/2;display:flex;align-items:center;justify-content:center;overflow:hidden}
.product-media img{width:100%;height:100%;object-fit:cover;transform:scale(1);transition:transform 0.4s ease}
.product-card:hover .product-media img{transform:scale(1.06)}

.compare{background:var(--bg-soft)}
.table-wrap{overflow-x:auto;border-radius:16px;border:1px solid var(--border);background:var(--bg-card)}
.compare-table{width:100%;min-width:760px;border-collapse:collapse;font-size:14px}
.compare-table th,.compare-table td{padding:12px 14px;text-align:center;border-bottom:1px solid var(--border)}
.compare-table th{background:#0f1220;color:#ffffff}
.compare-table td:first-child,.compare-table th:first-child{text-align:left}

.download{background:linear-gradient(180deg,#f6f7fb 0%,#ffffff 100%)}
.download-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.download-copy p{color:#2b3246}
.download-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.download-tags span{background:rgba(255,255,255,0.08);border:1px solid var(--border);padding:6px 10px;border-radius:999px;font-size:12px}
.download-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.download-card{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:10px;text-align:center;transition:0.3s}
.download-card:hover{transform:translateY(-4px);box-shadow:0 18px 50px rgba(0,0,0,0.35)}
.download-card h3{margin-top:8px}

.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.news-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:0.3s}
.news-card img{width:100%;height:180px;object-fit:cover}
.news-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(0,0,0,0.4)}
.news-card h3{padding:12px 12px 0}
.news-card p{padding:0 12px 14px;color:#2b3246}

.coins{background:var(--bg-soft)}
.coin-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.coin-item{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:10px 12px;display:grid;grid-template-columns:24px 1fr;gap:8px;align-items:center;font-weight:600;color:#111827}
.coin-item img{width:22px;height:22px;object-fit:contain}

.timeline{background:var(--bg)}
.timeline-list{display:grid;gap:16px}
.timeline-item{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:16px;display:grid;grid-template-columns:80px 1fr 180px;gap:16px;align-items:center}
.timeline-year{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border-radius:999px;padding:6px 10px;text-align:center;font-weight:700}
.timeline-body p{color:#2b3246}
.timeline-item img{width:100%;height:auto;border-radius:12px}

.tutorials{background:var(--bg-soft)}
.tutorial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tutorial-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:12px;display:grid;gap:10px}
.tutorial-card img{border-radius:12px;width:100%;height:180px;object-fit:cover}
.tutorial-card p{color:#2b3246}

.faq{background:var(--bg-soft)}
.faq-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:14px;padding:12px;transition:0.3s}
.faq-item[open]{border-color:rgba(255,106,0,0.4);box-shadow:0 10px 30px rgba(255,106,0,0.12)}
.faq-item summary{cursor:pointer;font-weight:600;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item p{color:#2b3246;margin-top:8px}

.contact-card{background:linear-gradient(135deg,#ffffff,#f6f7fb);border-radius:22px;padding:40px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--border)}
.contact-card p{color:#2b3246;margin:8px 0 18px}

.site-footer{padding:40px 0;border-top:1px solid var(--border)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:20px}
.footer-grid p{color:#2b3246}
.footer-bottom{text-align:center;color:#3a4155;margin-top:20px;font-size:12px}
.footer-logo{height:22px;width:auto;display:block;margin-bottom:8px}

.floating-contact{position:fixed;right:18px;bottom:18px;z-index:1000}
.floating-btn{display:flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;padding:12px 16px;border-radius:999px;box-shadow:0 16px 40px rgba(255,106,0,0.35);animation:pulse 2.6s infinite}
.floating-btn::after{content:"";position:absolute;inset:-30%;background:radial-gradient(circle,rgba(255,255,255,0.35),transparent 60%);opacity:0.7;filter:blur(6px);z-index:-1}
.chat-dot{width:8px;height:8px;border-radius:50%;background:#fff;box-shadow:0 0 10px rgba(255,255,255,0.8)}

.back-to-top{position:fixed;right:18px;bottom:78px;background:#ffffff;border:1px solid var(--border);border-radius:12px;padding:8px;opacity:0;pointer-events:none;transition:0.3s;box-shadow:var(--shadow)}
.back-to-top.visible{opacity:1;pointer-events:auto}

.reveal{opacity:0;transform:translateY(18px);transition:0.6s ease}
.reveal.reveal-in{opacity:1;transform:translateY(0)}

@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.06)}}

@media(max-width:1024px){
  .hero-grid,.download-grid{grid-template-columns:1fr}
  .core-grid,.product-grid,.news-grid,.coin-grid,.tutorial-grid{grid-template-columns:repeat(2,1fr)}
  .timeline-item{grid-template-columns:1fr}
}
@media(max-width:768px){
  .nav-toggle{display:flex}
  .nav-list{position:fixed;top:0;right:0;width:min(78vw,320px);height:100vh;background:linear-gradient(180deg,#ffffff 0%,#f3f5fb 100%);flex-direction:column;align-items:flex-start;padding:80px 20px;transform:translateX(100%);transition:0.3s;z-index:1001;box-shadow:-20px 0 50px rgba(0,0,0,0.4)}
  .nav-open .nav-list{transform:translateX(0)}
  .nav-list a{width:100%;padding:12px 10px}
  .core-grid,.product-grid,.news-grid,.faq-list,.coin-grid,.tutorial-grid{grid-template-columns:1fr}
  .download-cards{grid-template-columns:1fr}
}
@media(max-width:480px){
  .hero{padding:80px 0 50px}
  .floating-btn{padding:10px 14px}
}