:root{--primary: #4F46E5;--primary-light: #818CF8;--primary-dark: #3730A3;--bg: #0F172A;--bg-card: #1E293B;--bg-subtle: #334155;--text: #F8FAFC;--text-muted: #94A3B8;--accent: #22D3EE;--success: #34D399;--gradient: linear-gradient(135deg, #4F46E5, #7C3AED, #EC4899)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}.app{overflow-x:hidden}.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:2rem;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle at 30% 50%,rgba(79,70,229,.15) 0%,transparent 50%),radial-gradient(circle at 70% 50%,rgba(124,58,237,.1) 0%,transparent 50%);animation:heroGlow 8s ease-in-out infinite alternate}@keyframes heroGlow{0%{transform:translate(0)}to{transform:translate(-5%,5%)}}.hero-content{position:relative;z-index:1;max-width:800px}.hero-badge{display:inline-block;padding:.4rem 1rem;background:#4f46e533;border:1px solid rgba(79,70,229,.4);border-radius:999px;font-size:.85rem;color:var(--primary-light);margin-bottom:1.5rem;letter-spacing:.05em}.hero h1{font-size:clamp(2.5rem,6vw,4.5rem);font-weight:800;line-height:1.1;margin-bottom:1.5rem;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero p{font-size:clamp(1.1rem,2vw,1.35rem);color:var(--text-muted);max-width:600px;margin:0 auto 2.5rem}.hero-buttons{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.btn-primary{display:inline-flex;align-items:center;gap:.5rem;padding:.9rem 2rem;background:var(--primary);color:#fff;border:none;border-radius:12px;font-size:1.05rem;font-weight:600;cursor:pointer;text-decoration:none;transition:all .3s ease}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 8px 30px #4f46e566}.btn-secondary{display:inline-flex;align-items:center;gap:.5rem;padding:.9rem 2rem;background:transparent;color:var(--text);border:1px solid var(--bg-subtle);border-radius:12px;font-size:1.05rem;font-weight:600;cursor:pointer;text-decoration:none;transition:all .3s ease}.btn-secondary:hover{border-color:var(--primary-light);background:#4f46e51a}.features{padding:6rem 2rem;max-width:1200px;margin:0 auto}.section-header{text-align:center;margin-bottom:4rem}.section-header h2{font-size:clamp(2rem,4vw,3rem);font-weight:700;margin-bottom:1rem}.section-header p{font-size:1.15rem;color:var(--text-muted);max-width:600px;margin:0 auto}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}.feature-card{background:var(--bg-card);border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:2rem;transition:all .3s ease}.feature-card:hover{transform:translateY(-4px);border-color:#4f46e54d;box-shadow:0 12px 40px #0000004d}.feature-icon{font-size:2.5rem;margin-bottom:1rem}.feature-card h3{font-size:1.25rem;font-weight:600;margin-bottom:.75rem}.feature-card p{color:var(--text-muted);font-size:.95rem;line-height:1.7}.how-it-works{padding:6rem 2rem;background:linear-gradient(180deg,transparent,rgba(79,70,229,.05),transparent)}.how-it-works .section-content{max-width:900px;margin:0 auto}.steps{display:flex;flex-direction:column;gap:3rem}.step{display:flex;align-items:flex-start;gap:2rem}.step-number{flex-shrink:0;width:56px;height:56px;border-radius:16px;background:var(--gradient);display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:800;color:#fff}.step-content h3{font-size:1.3rem;font-weight:600;margin-bottom:.5rem}.step-content p{color:var(--text-muted);font-size:1rem;line-height:1.7}.download{padding:6rem 2rem;text-align:center}.download-card{max-width:700px;margin:0 auto;background:var(--bg-card);border:1px solid rgba(255,255,255,.06);border-radius:24px;padding:4rem 3rem;position:relative;overflow:hidden}.download-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient)}.download-card h2{font-size:clamp(1.8rem,3vw,2.5rem);font-weight:700;margin-bottom:1rem}.download-card p{color:var(--text-muted);font-size:1.1rem;margin-bottom:2rem}.app-store-badge{display:inline-block;transition:transform .3s ease}.app-store-badge:hover{transform:scale(1.05)}.app-store-badge img{height:54px}.coming-soon{display:inline-flex;align-items:center;gap:.5rem;padding:.9rem 2.5rem;background:var(--bg-subtle);color:var(--text-muted);border-radius:12px;font-size:1.05rem;font-weight:600;border:1px dashed rgba(255,255,255,.15)}.footer{padding:3rem 2rem;border-top:1px solid rgba(255,255,255,.06);text-align:center}.footer-content{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.footer-brand{font-size:1.1rem;font-weight:600}.footer-links{display:flex;gap:2rem}.footer-links a{color:var(--text-muted);text-decoration:none;font-size:.9rem;transition:color .3s ease}.footer-links a:hover{color:var(--primary-light)}.footer-copy{color:var(--text-muted);font-size:.85rem}.privacy{max-width:800px;margin:0 auto;padding:4rem 2rem}.privacy-back{display:inline-flex;align-items:center;gap:.5rem;color:var(--primary-light);text-decoration:none;font-size:.95rem;margin-bottom:2rem;transition:color .3s ease}.privacy-back:hover{color:var(--primary)}.privacy h1{font-size:2.5rem;font-weight:700;margin-bottom:.5rem}.privacy .updated{color:var(--text-muted);margin-bottom:3rem;font-size:.9rem}.privacy h2{font-size:1.4rem;font-weight:600;margin:2.5rem 0 1rem;color:var(--primary-light)}.privacy p,.privacy li{color:var(--text-muted);line-height:1.8;margin-bottom:1rem}.privacy ul{padding-left:1.5rem;margin-bottom:1rem}.privacy a{color:var(--primary-light)}@media(max-width:768px){.step{flex-direction:column;align-items:center;text-align:center}.footer-content{flex-direction:column;text-align:center}.features-grid{grid-template-columns:1fr}.download-card{padding:3rem 1.5rem}}