/* ===== CSS Variables / GateAPP Design System ===== */
:root {
  --bg-dark: #0b1021;
  --bg-darker: #060912;
  --bg-card: #111827;
  --bg-card-hover: #1a2332;
  --blue: #2563eb;
  --blue-light: #3b82f6;
  --blue-dark: #1d4ed8;
  --gold: #d97706;
  --gold-light: #f59e0b;
  --purple: #7c3aed;
  --purple-light: #8b5cf6;
  --green: #10b981;
  --green-light: #34d399;
  --white: #ffffff;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.5);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
  --nav-height: 72px;
}

/* ===== Reset ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg-dark);color:var(--gray-200);line-height:1.7;overflow-x:hidden}
a{color:var(--blue-light);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--blue)}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
button{cursor:pointer;border:none;font-family:inherit}

/* ===== Utility Classes ===== */
.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}
.section-padding{padding:100px 0}
@media(max-width:768px){.section-padding{padding:60px 0}}

/* ===== Navbar ===== */
.navbar{position:fixed;top:0;left:0;right:0;height:var(--nav-height);background:rgba(11,16,33,0.92);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,0.06);z-index:1000;transition:var(--transition)}
.navbar .container{display:flex;align-items:center;justify-content:space-between;height:100%}
.nav-logo{font-size:1.5rem;font-weight:800;color:var(--white);display:flex;align-items:center;gap:8px}
.nav-logo span{background:linear-gradient(135deg,var(--blue),var(--purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{color:var(--gray-300);font-weight:500;font-size:0.95rem;position:relative;padding:4px 0}
.nav-links a::after{content:'';position:absolute;bottom:-2px;left:0;width:0;height:2px;background:var(--blue);transition:var(--transition)}
.nav-links a:hover{color:var(--white)}
.nav-links a:hover::after{width:100%}
.nav-links a.active{color:var(--blue)}
.nav-links a.active::after{width:100%}
.nav-cta{background:linear-gradient(135deg,var(--blue),var(--purple));color:var(--white);padding:10px 24px;border-radius:50px;font-weight:600;font-size:0.9rem;transition:var(--transition)}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(37,99,235,0.4);color:var(--white)}
.menu-toggle{display:none;flex-direction:column;gap:5px;background:none;padding:8px}
.menu-toggle span{width:24px;height:2px;background:var(--white);border-radius:2px;transition:var(--transition)}
@media(max-width:768px){
  .nav-links{position:fixed;top:var(--nav-height);left:0;right:0;background:rgba(11,16,33,0.98);backdrop-filter:blur(20px);flex-direction:column;padding:24px;gap:20px;transform:translateY(-120%);opacity:0;transition:var(--transition)}
  .nav-links.active{transform:translateY(0);opacity:1}
  .menu-toggle{display:flex}
}

/* ===== Hero Section ===== */
.hero{min-height:100vh;display:flex;align-items:center;background:radial-gradient(ellipse at 50% 0%,rgba(37,99,235,0.15) 0%,transparent 60%),radial-gradient(ellipse at 80% 100%,rgba(124,58,237,0.1) 0%,transparent 50%),var(--bg-dark);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(37,99,235,0.03)" d="M0,96L48,112C96,128,192,160,288,176C384,192,480,192,576,176C672,160,768,128,864,122.7C960,117,1056,139,1152,138.7C1248,139,1344,117,1392,106.7L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"/></svg>') no-repeat bottom;background-size:cover;pointer-events:none}
.hero .container{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;z-index:1;padding-top:var(--nav-height)}
@media(max-width:968px){.hero .container{grid-template-columns:1fr;text-align:center}}
.hero-content h1{font-size:3.2rem;font-weight:800;line-height:1.2;margin-bottom:20px;background:linear-gradient(135deg,var(--white) 0%,var(--blue-light) 50%,var(--purple-light) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-content h1 .gold-highlight{background:linear-gradient(135deg,var(--gold-light),var(--gold));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-content p{font-size:1.15rem;color:var(--gray-400);margin-bottom:32px;max-width:540px}
@media(max-width:968px){.hero-content p{margin:0 auto 32px}}
.hero-buttons{display:flex;gap:16px;flex-wrap:wrap}
@media(max-width:968px){.hero-buttons{justify-content:center}}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:50px;font-weight:600;font-size:0.95rem;transition:var(--transition);white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--purple));color:var(--white);box-shadow:0 4px 20px rgba(37,99,235,0.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(37,99,235,0.5);color:var(--white)}
.btn-outline{border:2px solid rgba(255,255,255,0.2);color:var(--white);background:transparent}
.btn-outline:hover{border-color:var(--blue);background:rgba(37,99,235,0.1);color:var(--white)}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-light));color:var(--bg-dark)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(217,119,6,0.4);color:var(--bg-dark)}
.hero-visual{display:flex;justify-content:center;align-items:center}
.hero-mockup{background:linear-gradient(135deg,rgba(37,99,235,0.15),rgba(124,58,237,0.15));border:1px solid rgba(255,255,255,0.1);border-radius:24px;padding:20px;box-shadow:0 20px 60px rgba(0,0,0,0.4);animation:float 6s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}
.hero-mockup img{border-radius:12px}

/* ===== CTA Pulse Animation ===== */
.btn-pulse{animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(37,99,235,0.5)}70%{box-shadow:0 0 0 20px rgba(37,99,235,0)}100%{box-shadow:0 0 0 0 rgba(37,99,235,0)}}

/* ===== Section Headers ===== */
.section-header{text-align:center;margin-bottom:60px}
.section-header h2{font-size:2.5rem;font-weight:800;color:var(--white);margin-bottom:16px}
.section-header h2 span{background:linear-gradient(135deg,var(--blue),var(--purple));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section-header p{color:var(--gray-400);font-size:1.1rem;max-width:600px;margin:0 auto}

/* ===== Features Grid ===== */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:968px){.features-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.features-grid{grid-template-columns:1fr}}
.feature-card{background:var(--bg-card);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius);padding:32px;transition:var(--transition);position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--blue),transparent);opacity:0;transition:var(--transition)}
.feature-card:hover::before{opacity:1}
.feature-card:hover{transform:translateY(-6px);border-color:rgba(37,99,235,0.3);box-shadow:0 12px 40px rgba(0,0,0,0.3)}
.feature-icon{width:56px;height:56px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:20px}
.feature-icon.blue{background:rgba(37,99,235,0.15);color:var(--blue-light)}
.feature-icon.gold{background:rgba(217,119,6,0.15);color:var(--gold-light)}
.feature-icon.purple{background:rgba(124,58,237,0.15);color:var(--purple-light)}
.feature-icon.green{background:rgba(16,185,129,0.15);color:var(--green-light)}
.feature-card h3{font-size:1.15rem;font-weight:700;color:var(--white);margin-bottom:10px}
.feature-card p{color:var(--gray-400);font-size:0.93rem;line-height:1.6}

/* ===== Stats Section ===== */
.stats-section{background:linear-gradient(135deg,rgba(37,99,235,0.05),rgba(124,58,237,0.05));border-top:1px solid rgba(255,255,255,0.04);border-bottom:1px solid rgba(255,255,255,0.04)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;text-align:center}
@media(max-width:968px){.stats-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.stats-grid{grid-template-columns:1fr}}
.stat-item .stat-number{font-size:3rem;font-weight:800;background:linear-gradient(135deg,var(--blue-light),var(--purple-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-item .stat-label{color:var(--gray-400);font-size:0.95rem;margin-top:4px}

/* ===== Market Ticker ===== */
.ticker-section{overflow:hidden}
.ticker-header{text-align:center;margin-bottom:40px}
.ticker-header h2{font-size:2rem;font-weight:800;color:var(--white)}
.ticker-table{width:100%;border-collapse:collapse}
.ticker-table th{text-align:left;padding:16px;color:var(--gray-400);font-weight:500;font-size:0.85rem;text-transform:uppercase;border-bottom:1px solid rgba(255,255,255,0.06)}
.ticker-table td{padding:16px;border-bottom:1px solid rgba(255,255,255,0.04);font-size:0.95rem}
.ticker-table tr{transition:var(--transition)}
.ticker-table tbody tr:hover{background:rgba(37,99,235,0.05)}
.ticker-table .pair{display:flex;align-items:center;gap:10px;color:var(--white);font-weight:600}
.ticker-table .pair-icon{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--purple));display:flex;align-items:center;justify-content:center;font-size:0.7rem;font-weight:700;color:var(--white)}
.ticker-table .price{color:var(--white);font-weight:600}
.ticker-table .change.positive{color:var(--green)}
.ticker-table .change.negative{color:#ef4444}
.wave-indicator{display:inline-block;width:60px;height:20px;background:linear-gradient(90deg,var(--green),var(--green-light),var(--green));border-radius:10px;animation:waveFlash 1.5s ease-in-out infinite}
@keyframes waveFlash{0%,100%{opacity:0.6}50%{opacity:1}}

/* ===== App Showcase ===== */
.app-showcase{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;align-items:center}
@media(max-width:968px){.app-showcase{grid-template-columns:1fr}}
.app-screen{background:var(--bg-card);border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,0.08);transition:var(--transition)}
.app-screen:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.app-screen img{width:100%}
.app-screen .screen-label{padding:16px;text-align:center;color:var(--gray-300);font-weight:600;font-size:0.9rem}

/* ===== Page Hero (Inner Pages) ===== */
.page-hero{padding:140px 0 80px;text-align:center;background:radial-gradient(ellipse at 50% 0%,rgba(37,99,235,0.12) 0%,transparent 50%),var(--bg-dark)}
.page-hero h1{font-size:2.8rem;font-weight:800;color:var(--white);margin-bottom:16px}
.page-hero p{color:var(--gray-400);font-size:1.1rem;max-width:600px;margin:0 auto}

/* ===== About Page ===== */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
@media(max-width:968px){.about-grid{grid-template-columns:1fr}}
.about-image{border-radius:var(--radius);overflow:hidden;border:1px solid rgba(255,255,255,0.08)}
.about-text h2{font-size:2rem;font-weight:800;color:var(--white);margin-bottom:20px}
.about-text p{color:var(--gray-300);margin-bottom:16px;line-height:1.8}
.timeline{position:relative;padding-left:32px;border-left:2px solid rgba(37,99,235,0.3)}
.timeline-item{margin-bottom:32px;position:relative}
.timeline-item::before{content:'';position:absolute;left:-39px;top:4px;width:12px;height:12px;border-radius:50%;background:var(--blue);border:2px solid var(--bg-dark)}
.timeline-item .year{color:var(--blue-light);font-weight:700;font-size:0.9rem;margin-bottom:4px}
.timeline-item h4{color:var(--white);font-weight:700;margin-bottom:4px}
.timeline-item p{color:var(--gray-400);font-size:0.9rem}

/* ===== Services Page ===== */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:968px){.services-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.services-grid{grid-template-columns:1fr}}
.service-card{background:var(--bg-card);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius);padding:40px 28px;text-align:center;transition:var(--transition)}
.service-card:hover{transform:translateY(-6px);border-color:rgba(37,99,235,0.3);box-shadow:0 12px 40px rgba(0,0,0,0.3)}
.service-card .service-icon{width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:1.8rem}
.service-card h3{color:var(--white);font-weight:700;margin-bottom:12px}
.service-card p{color:var(--gray-400);font-size:0.93rem;margin-bottom:20px;line-height:1.6}

/* ===== FAQ Page ===== */
.faq-container{max-width:800px;margin:0 auto}
.faq-item{background:var(--bg-card);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius);margin-bottom:16px;overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:rgba(37,99,235,0.2)}
.faq-item summary{padding:20px 24px;cursor:pointer;font-weight:600;color:var(--white);font-size:1.05rem;display:flex;justify-content:space-between;align-items:center;user-select:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';font-size:1.5rem;color:var(--blue-light);transition:var(--transition);flex-shrink:0;margin-left:16px}
.faq-item[open] summary::after{content:'-';color:var(--purple-light)}
.faq-item .faq-answer{padding:0 24px 24px;color:var(--gray-300);line-height:1.8;font-size:0.95rem}

/* ===== Contact Page ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px}
@media(max-width:768px){.contact-grid{grid-template-columns:1fr}}
.contact-form{background:var(--bg-card);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius);padding:32px}
.contact-form h3{color:var(--white);font-weight:700;margin-bottom:24px;font-size:1.3rem}
.form-group{margin-bottom:20px}
.form-group label{display:block;color:var(--gray-300);margin-bottom:6px;font-weight:500;font-size:0.9rem}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px 16px;background:var(--bg-darker);border:1px solid rgba(255,255,255,0.1);border-radius:var(--radius-sm);color:var(--white);font-size:0.95rem;transition:var(--transition);font-family:inherit}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(37,99,235,0.15)}
.form-group textarea{min-height:120px;resize:vertical}
.contact-info .info-card{background:var(--bg-card);border:1px solid rgba(255,255,255,0.06);border-radius:var(--radius);padding:24px;margin-bottom:16px;display:flex;align-items:flex-start;gap:16px}
.contact-info .info-icon{width:48px;height:48px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:1.2rem;flex-shrink:0}
.contact-info .info-icon.blue{background:rgba(37,99,235,0.15);color:var(--blue-light)}
.contact-info .info-icon.gold{background:rgba(217,119,6,0.15);color:var(--gold-light)}
.contact-info .info-icon.purple{background:rgba(124,58,237,0.15);color:var(--purple-light)}
.contact-info h4{color:var(--white);font-weight:600;margin-bottom:4px}
.contact-info p{color:var(--gray-400);font-size:0.9rem}

/* ===== CTA Section ===== */
.cta-section{background:linear-gradient(135deg,rgba(37,99,235,0.1),rgba(124,58,237,0.1));text-align:center;border-top:1px solid rgba(255,255,255,0.04);border-bottom:1px solid rgba(255,255,255,0.04)}
.cta-section h2{font-size:2.2rem;font-weight:800;color:var(--white);margin-bottom:16px}
.cta-section p{color:var(--gray-400);margin-bottom:32px;font-size:1.05rem}
.cta-buttons{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ===== Footer ===== */
.footer{background:var(--bg-darker);border-top:1px solid rgba(255,255,255,0.05);padding:48px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.footer-grid{grid-template-columns:1fr}}
.footer-brand h3{color:var(--white);font-weight:800;font-size:1.3rem;margin-bottom:12px}
.footer-brand p{color:var(--gray-500);font-size:0.9rem}
.footer-col h4{color:var(--white);font-weight:600;margin-bottom:16px;font-size:0.95rem}
.footer-col a{display:block;color:var(--gray-500);font-size:0.9rem;margin-bottom:8px;transition:var(--transition)}
.footer-col a:hover{color:var(--blue-light)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.06);padding-top:24px;text-align:center;color:var(--gray-500);font-size:0.85rem}

/* ===== Scroll Reveal ===== */
.reveal{opacity:0;transform:translateY(30px);transition:opacity 0.8s ease,transform 0.8s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ===== Back to Top ===== */
.back-to-top{position:fixed;bottom:32px;right:32px;width:44px;height:44px;border-radius:50%;background:var(--blue);color:var(--white);display:flex;align-items:center;justify-content:center;font-size:1.2rem;box-shadow:0 4px 16px rgba(37,99,235,0.4);transition:var(--transition);opacity:0;visibility:hidden;z-index:999}
.back-to-top.visible{opacity:1;visibility:visible}
.back-to-top:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(37,99,235,0.6);color:var(--white)}

/* ===== App Interface Showcase Animation ===== */
.app-interface-showcase{display:flex;gap:20px;justify-content:center;flex-wrap:wrap}
.app-phone{width:220px;background:var(--bg-card);border-radius:24px;padding:12px;border:1px solid rgba(255,255,255,0.1);transition:var(--transition)}
.app-phone:hover{transform:translateY(-8px)}
.app-phone .phone-screen{border-radius:16px;overflow:hidden}
.app-phone .phone-screen img{width:100%}

/* ===== Breadcrumb ===== */
.breadcrumb{padding:12px 0;color:var(--gray-500);font-size:0.85rem}
.breadcrumb a{color:var(--gray-400)}
.breadcrumb span{color:var(--gray-300)}