:root{--blue:#2563eb;--blue-dk:#1d4ed8;--green:#10b981;--dark:#0f172a;--mid:#64748b;--light:#f8fafc;--border:#e2e8f0;--white:#fff;--font:system-ui,-apple-system,'Segoe UI',Roboto,'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif}
*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font);background:var(--white);color:var(--dark);line-height:1.6;font-size:16px;overflow-x:hidden}.container{max-width:1200px;margin:0 auto;padding:0 24px}.bg-light{background:var(--light)}

/* SCROLL REVEAL (from API4Trading) */
.reveal-on-scroll{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}.reveal-on-scroll.visible{opacity:1;transform:translateY(0)}

/* TEXT GRADIENT */
.text-gradient{background:linear-gradient(135deg,var(--blue),#7c3aed);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* HEADER */
header{background:var(--white);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:999;box-shadow:0 1px 3px rgba(0,0,0,.04)}nav{display:flex;justify-content:space-between;align-items:center;padding:14px 0}.logo-text{font-size:20px;font-weight:800;color:var(--blue);text-decoration:none;letter-spacing:-.5px}.logo-text span{color:var(--dark)}.logo-cn{font-size:10px;color:var(--mid);font-weight:500;margin-left:4px;vertical-align:super}.nav-links{display:flex;list-style:none;gap:28px;align-items:center}.nav-links a{color:var(--mid);text-decoration:none;font-size:14px;font-weight:500;transition:color .2s}.nav-links a:hover{color:var(--dark)}.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:8px;border:none;background:none}.hamburger span{display:block;width:22px;height:2px;background:var(--dark);border-radius:2px}.mobile-menu{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:var(--white);z-index:1000;padding:20px;flex-direction:column}.mobile-menu.open{display:flex}.mobile-menu-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px}.mobile-close{font-size:24px;cursor:pointer;border:none;background:none;color:var(--dark)}.mobile-nav{display:flex;flex-direction:column;gap:0}.mobile-nav a{color:var(--dark);text-decoration:none;font-size:18px;font-weight:500;padding:16px 0;border-bottom:1px solid var(--border)}.mobile-cta{margin-top:32px;display:flex;flex-direction:column;gap:12px}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px 28px;font-size:14px;font-weight:600;text-decoration:none;border-radius:10px;transition:all .25s;cursor:pointer;border:none}.btn-primary{background:var(--blue);color:var(--white);box-shadow:0 4px 14px rgba(37,99,235,.25)}.btn-primary:hover{background:var(--blue-dk);transform:translateY(-1px);box-shadow:0 6px 20px rgba(37,99,235,.35)}.btn-secondary{background:transparent;color:var(--blue);border:2px solid var(--border)}.btn-secondary:hover{border-color:var(--blue);background:rgba(37,99,235,.04)}.btn-ghost{background:transparent;color:var(--mid);border:1px solid var(--border)}.btn-ghost:hover{color:var(--dark);border-color:var(--dark)}.btn-sm{padding:10px 22px;font-size:13px}.btn-lg{padding:16px 32px;font-size:16px}.btn-white{background:var(--white);color:var(--blue);font-weight:700;box-shadow:0 4px 14px rgba(0,0,0,.15)}.btn-white:hover{background:#f0f6ff;transform:translateY(-1px)}.btn-outline-white{background:transparent;color:var(--white);border:2px solid rgba(255,255,255,.4)}.btn-outline-white:hover{background:rgba(255,255,255,.1)}

/* HERO (API4Trading style) */
.hero{padding:80px 0 60px;background:var(--white);position:relative}.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.live-badge{display:inline-flex;align-items:center;gap:8px;border:1px solid #bfdbfe;background:#eff6ff;border-radius:100px;padding:6px 16px;font-size:13px;font-weight:500;color:var(--blue);margin-bottom:20px}.live-dot{width:8px;height:8px;background:var(--green);border-radius:50%;animation:pulse 2s infinite}@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}.hero-content h1{font-size:48px;font-weight:800;line-height:1.1;margin-bottom:16px;letter-spacing:-.5px;color:var(--dark)}.hero-sub{font-size:18px;color:var(--mid);margin-bottom:20px;line-height:1.7}.hero-note{background:#fffbeb;border-left:3px solid #f59e0b;padding:14px 18px;border-radius:0 10px 10px 0;font-size:14px;margin-bottom:24px;line-height:1.6;color:var(--dark)}.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:24px}.hero-trust{display:flex;flex-wrap:wrap;gap:16px;font-size:13px;color:var(--mid);font-weight:500}

/* TERMINAL (API4Trading style dark) */
.terminal{border-radius:16px;overflow:hidden;border:1px solid var(--border);box-shadow:0 20px 50px rgba(0,0,0,.12)}.terminal-header{display:flex;align-items:center;gap:12px;padding:12px 18px;background:#0f172a;border-bottom:1px solid #1e293b}.terminal-dots{display:flex;gap:6px}.td{width:12px;height:12px;border-radius:50%}.td.red{background:#ef4444}.td.yellow{background:#f59e0b}.td.green{background:#22c55e}.terminal-title{font-size:12px;color:#64748b;font-family:monospace}.terminal-body{background:#020617;padding:24px;font-family:'SF Mono',Monaco,'Courier New',monospace;font-size:13px;line-height:1.8;color:#e2e8f0}.t-comment{color:#64748b}.t-method{color:#22c55e}.t-flag{color:#60a5fa}.t-str{color:#a78bfa}.t-kw{color:#fbbf24}.t-key{color:#60a5fa}.t-num{color:#f97316}.t-var{color:#c084fc}

/* TICKER (API4Trading style) */
.ticker-wrap{overflow:hidden;background:var(--light);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:14px 0}.ticker{display:flex;animation:tickerScroll 30s linear infinite;width:max-content}.ticker-item{white-space:nowrap;padding:0 32px;font-size:14px;font-weight:500;color:var(--mid)}@keyframes tickerScroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* LOGO CAROUSEL (from API2Trade) */
.logos-section{padding:48px 0;background:var(--white)}.logos-title{text-align:center;font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:1px;color:var(--mid);margin-bottom:28px}.logos-track{overflow:hidden;position:relative;mask-image:linear-gradient(to right,transparent,black 10%,black 90%,transparent);-webkit-mask-image:linear-gradient(to right,transparent,black 10%,black 90%,transparent)}.logos-slider{display:flex;align-items:center;gap:48px;animation:logoSlide 25s linear infinite;width:max-content}.logo-img{height:36px;width:auto;opacity:.5;filter:grayscale(100%);transition:all .3s}.logo-img:hover{opacity:1;filter:grayscale(0)}.logo-img.invert{filter:grayscale(100%) invert(1)}.logo-img.invert:hover{filter:invert(1) grayscale(0)}@keyframes logoSlide{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* SECTION COMMON */
section{padding:80px 0}.section-header{text-align:center;max-width:640px;margin:0 auto 52px}.section-label{display:block;font-size:13px;font-weight:600;color:var(--blue);text-transform:uppercase;letter-spacing:1.5px;margin-bottom:12px}.section-title{font-size:40px;font-weight:800;color:var(--dark);letter-spacing:-.5px;margin-bottom:12px}.section-desc{font-size:16px;color:var(--mid);line-height:1.7}

/* FEATURES */
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}.feat-card{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:28px;transition:all .3s}.feat-card:hover{border-color:#bfdbfe;box-shadow:0 12px 32px rgba(37,99,235,.08);transform:translateY(-4px)}.feat-icon{font-size:28px;margin-bottom:14px}.feat-card h3{font-size:17px;font-weight:700;margin-bottom:4px;color:var(--dark)}.feat-sub{font-size:12px;color:var(--blue);font-family:monospace;margin-bottom:10px}.feat-card>p:last-of-type{font-size:14px;color:var(--mid);line-height:1.6;margin-bottom:14px}.feat-tags{display:flex;gap:6px;flex-wrap:wrap}.feat-tags span{font-size:11px;padding:3px 10px;border-radius:100px;background:var(--light);color:var(--mid);font-weight:500;border:1px solid var(--border)}

/* ARCHITECTURE */
.arch-flow{display:flex;align-items:center;justify-content:center;gap:0;flex-wrap:wrap}.arch-node{text-align:center;padding:28px;background:var(--white);border:1px solid var(--border);border-radius:16px;min-width:200px;transition:all .3s}.arch-node:hover{box-shadow:0 8px 24px rgba(0,0,0,.06)}.arch-node.center{border-color:var(--blue);background:linear-gradient(135deg,#eff6ff,#f0fdf4)}.arch-icon-wrap{font-size:32px;margin-bottom:10px}.arch-node h4{font-size:15px;font-weight:700;margin-bottom:4px}.arch-node p{font-size:13px;color:var(--mid)}.arch-line{width:60px;height:2px;background:var(--border);position:relative;flex-shrink:0}.arch-dot{width:8px;height:8px;background:var(--blue);border-radius:50%;position:absolute;top:-3px;left:0;animation:archMove 2s ease-in-out infinite}@keyframes archMove{0%,100%{left:0}50%{left:calc(100% - 8px)}}

/* COMPARISON */
.cmp-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;max-width:900px;margin:0 auto}.cmp-card{background:var(--white);border:2px solid var(--border);border-radius:16px;padding:36px}.cmp-card.good{border-color:var(--blue);background:#f0f7ff}.cmp-card h3{font-size:22px;font-weight:800;margin-bottom:24px;color:var(--dark)}.cmp-row{display:flex;align-items:flex-start;gap:10px;margin-bottom:14px;font-size:14px}.cmp-row.yes{color:var(--dark)}.cmp-row.no{color:var(--mid)}.cmp-icon{font-size:15px;margin-top:1px;flex-shrink:0;font-weight:700}.yes .cmp-icon{color:var(--green)}.no .cmp-icon{color:#ef4444}

/* PRICING */
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px}.price-card{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:32px;transition:all .3s;position:relative;display:flex;flex-direction:column}.price-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(0,0,0,.08)}.price-card.popular{border:2px solid var(--blue);box-shadow:0 12px 30px rgba(37,99,235,.12)}.popular-badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--blue);color:var(--white);font-size:11px;font-weight:700;padding:4px 16px;border-radius:100px;white-space:nowrap;letter-spacing:.5px}.price-tier{font-size:12px;font-weight:600;color:var(--blue);text-transform:uppercase;letter-spacing:.5px;margin-bottom:6px}.price-name{font-size:22px;font-weight:800;margin-bottom:4px}.price-val{font-size:38px;font-weight:800;color:var(--dark);margin:12px 0 4px}.price-val sup{font-size:20px;vertical-align:super}.price-val span{font-size:16px;color:var(--mid);font-weight:400}.price-desc{font-size:13px;color:var(--mid);margin-bottom:20px}.price-feats{list-style:none;margin-bottom:24px;display:flex;flex-direction:column;gap:10px;flex:1}.price-feats li{font-size:14px;color:var(--mid);display:flex;align-items:center;gap:8px;font-weight:500}.price-feats li::before{content:"✓";color:var(--green);font-weight:700;flex-shrink:0}.price-note{text-align:center;font-size:13px;color:var(--mid)}

/* FAQ */
.faq-list{max-width:720px;margin:0 auto;display:flex;flex-direction:column;gap:10px}.faq-item{border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--white);transition:border-color .2s}.faq-item:hover{border-color:#bfdbfe}.faq-q{width:100%;background:none;border:none;padding:18px 22px;text-align:left;font-size:15px;font-weight:600;color:var(--dark);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;font-family:var(--font)}.faq-q:hover{background:var(--light)}.faq-arrow{font-size:12px;color:var(--mid);transition:transform .25s;flex-shrink:0}.faq-item.open .faq-arrow{transform:rotate(180deg)}.faq-item.open{border-color:var(--blue);background:#f0f7ff}.faq-a{display:none;padding:0 22px 18px;font-size:14px;color:var(--mid);line-height:1.7}.faq-item.open .faq-a{display:block}

/* CTA */
#cta-banner{background:var(--white);padding:80px 0}.cta-inner{max-width:720px;margin:0 auto;text-align:center;background:linear-gradient(135deg,var(--blue),#4f46e5);border-radius:24px;padding:64px 40px;box-shadow:0 24px 60px rgba(37,99,235,.25)}.cta-inner h2{font-size:36px;font-weight:800;color:var(--white);margin-bottom:12px}.cta-inner>p{font-size:17px;color:rgba(255,255,255,.85);margin-bottom:32px}.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:20px}.cta-sub{color:rgba(255,255,255,.5);font-size:13px}

/* FOOTER */
footer{background:var(--dark);color:rgba(255,255,255,.7);padding:56px 0 24px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}.footer-brand .logo-text{color:var(--white)}.footer-brand p{font-size:13px;line-height:1.7;margin-top:12px;color:rgba(255,255,255,.5)}.footer-col h4{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:1px;color:rgba(255,255,255,.9);margin-bottom:16px}.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}.footer-col ul a{color:rgba(255,255,255,.5);text-decoration:none;font-size:13px;transition:color .2s}.footer-col ul a:hover{color:var(--white)}.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-size:12px;color:rgba(255,255,255,.3)}

/* BREADCRUMB + PAGE HERO */
.breadcrumb{background:var(--light);padding:12px 0;font-size:13px;color:var(--mid)}.breadcrumb a{color:var(--blue);text-decoration:none}.breadcrumb span{margin:0 8px}.page-hero{background:var(--white);padding:52px 0;border-bottom:1px solid var(--border)}.page-hero h1{font-size:38px;font-weight:800;margin-bottom:10px;color:var(--dark)}.page-hero p{font-size:17px;color:var(--mid);max-width:600px}

/* CONTACT */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}.contact-info h2{font-size:24px;font-weight:700;margin-bottom:16px}.contact-info p{font-size:15px;color:var(--mid);margin-bottom:24px;line-height:1.7}.contact-item{display:flex;gap:14px;margin-bottom:20px}.contact-ic{width:44px;height:44px;background:#eff6ff;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}.contact-item h4{font-size:14px;font-weight:600;margin-bottom:2px}.contact-item p{font-size:13px;color:var(--mid)}.contact-form{background:var(--light);border:1px solid var(--border);border-radius:16px;padding:32px}.contact-form h3{font-size:20px;font-weight:700;margin-bottom:24px}.form-group{margin-bottom:18px}.form-group label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--dark)}.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 14px;border:1px solid var(--border);border-radius:10px;font-size:14px;font-family:var(--font);color:var(--dark);background:var(--white);transition:border-color .2s;min-height:44px}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--blue)}.form-group textarea{min-height:110px;resize:vertical}

/* ABOUT */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;margin-bottom:60px}.about-content h2{font-size:28px;font-weight:700;margin-bottom:16px}.about-content p{font-size:15px;color:var(--mid);line-height:1.7;margin-bottom:14px}.about-stats{display:grid;grid-template-columns:1fr 1fr;gap:20px}.about-stat{background:var(--light);border:1px solid var(--border);border-radius:12px;padding:22px;text-align:center}.about-stat .num{font-size:32px;font-weight:800;color:var(--blue);margin-bottom:4px}.about-stat p{font-size:13px;color:var(--mid)}.team-panel{background:linear-gradient(135deg,#eff6ff,#f0fdf4);border-radius:16px;padding:32px;border:1px solid #c7d9f8}

/* RESPONSIVE */
@media(max-width:1024px){.hero-grid,.metrics-wrap,.contact-grid,.about-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.arch-flow{flex-direction:column}.arch-line{width:2px;height:40px}.arch-dot{top:0;left:-3px;animation:archMoveV 2s ease-in-out infinite}@keyframes archMoveV{0%,100%{top:0}50%{top:calc(100% - 8px)}}}
@media(max-width:768px){.nav-links{display:none}.hamburger{display:flex}.hero-content h1{font-size:32px}.section-title{font-size:30px}.cmp-grid,.pricing-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.hero-ctas,.cta-btns{flex-direction:column;align-items:stretch}.footer-bottom{flex-direction:column;text-align:center}}
@media(max-width:480px){.container{padding:0 16px}section{padding:56px 0}.hero{padding:48px 0 36px}.hero-content h1{font-size:28px}.btn-lg{padding:14px 24px;font-size:15px}}

/* BLOG */
.cat-filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:32px}.cat-btn{padding:8px 18px;border-radius:100px;border:1px solid var(--border);background:var(--white);font-size:13px;font-weight:500;color:var(--mid);cursor:pointer;transition:all .2s;font-family:var(--font)}.cat-btn:hover{border-color:var(--blue);color:var(--blue)}.cat-btn.active{background:var(--blue);color:var(--white);border-color:var(--blue)}
.blog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}
.blog-card{background:var(--white);border:1px solid var(--border);border-radius:14px;padding:24px;text-decoration:none;color:var(--dark);transition:all .3s;display:flex;flex-direction:column}.blog-card:hover{border-color:#bfdbfe;box-shadow:0 10px 30px rgba(37,99,235,.08);transform:translateY(-3px)}.blog-cat{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;margin-bottom:10px}.blog-card h3{font-size:16px;font-weight:700;margin-bottom:8px;line-height:1.4;color:var(--dark)}.blog-card p{font-size:13px;color:var(--mid);line-height:1.5;flex:1;margin-bottom:12px}.blog-read{font-size:13px;font-weight:600;color:var(--blue)}
.article-page{padding:48px 0}.article-meta{display:flex;gap:16px;align-items:center;margin-bottom:16px}.article-src{font-size:12px;color:var(--mid);background:var(--light);padding:4px 10px;border-radius:6px}.article-page h1{font-size:32px;font-weight:800;margin-bottom:28px;line-height:1.3}.article-body p{font-size:15px;color:#334155;line-height:1.8;margin-bottom:18px}
.article-cta{background:linear-gradient(135deg,#eff6ff,#f0fdf4);border:1px solid #c7d9f8;border-radius:14px;padding:28px;margin:28px 0;text-align:center}.article-cta strong{font-size:18px;display:block;margin-bottom:6px}.article-cta p{font-size:14px;color:var(--mid);margin-bottom:16px}.article-cta .btn{margin:0 6px}
.article-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:32px;padding-top:24px;border-top:1px solid var(--border)}.article-tags span{font-size:12px;padding:4px 12px;background:var(--light);border:1px solid var(--border);border-radius:100px;color:var(--mid)}
.related-section{padding:48px 0;background:var(--light)}.related-section h3{font-size:20px;font-weight:700;margin-bottom:20px}.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}.related-card{background:var(--white);border:1px solid var(--border);border-radius:12px;padding:18px;text-decoration:none;color:var(--dark);transition:all .2s}.related-card:hover{border-color:#bfdbfe;box-shadow:0 4px 12px rgba(0,0,0,.05)}.related-card h4{font-size:14px;font-weight:600;line-height:1.4;margin-top:8px}
.footer-legal{text-align:center;font-size:11px;color:#6b7280;padding:10px 0 2px;border-top:1px solid rgba(255,255,255,.07);margin-top:10px;line-height:1.6;opacity:.7}