:root{--color-primary:#0076FF;--color-primary-light:#409CFF;--color-primary-dark:#0056CC;--color-accent:#00C7FF;--bg-primary:#FFFFFF;--bg-secondary:#F5F7FA;--bg-card:rgba(255, 255, 255, 0.8);--text-primary:#1A1A2E;--text-secondary:#6B7280;--text-muted:#9CA3AF;--border-color:rgba(0, 118, 255, 0.1);--gradient-hero:linear-gradient(135deg, #0076FF 0%, #00C7FF 100%);--gradient-card:linear-gradient(135deg, rgba(0, 118, 255, 0.05) 0%, rgba(0, 199, 255, 0.05) 100%);--shadow-sm:0 2px 8px rgba(0, 118, 255, 0.08);--shadow-md:0 4px 20px rgba(0, 118, 255, 0.12);--shadow-lg:0 8px 40px rgba(0, 118, 255, 0.16);--nav-height:72px;--section-padding:80px;--container-max:1200px;--transition-fast:0.2s ease;--transition-normal:0.3s ease;--radius-sm:8px;--radius-md:12px;--radius-lg:20px;--radius-xl:28px}[data-theme=dark]{--bg-primary:#0D1117;--bg-secondary:#161B22;--bg-card:rgba(22, 27, 34, 0.9);--text-primary:#F0F6FC;--text-secondary:#8B949E;--text-muted:#6E7681;--border-color:rgba(0, 118, 255, 0.2);--shadow-sm:0 2px 8px rgba(0, 0, 0, 0.3);--shadow-md:0 4px 20px rgba(0, 0, 0, 0.4);--shadow-lg:0 8px 40px rgba(0, 0, 0, 0.5)}*,::after,::before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:-apple-system,BlinkMacSystemFont,'SF Pro Display','Segoe UI',Roboto,Helvetica,Arial,sans-serif;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;transition:background-color var(--transition-normal),color var(--transition-normal);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-light)}img{max-width:100%;height:auto}.container{max-width:var(--container-max);margin:0 auto;padding:0 24px}.nav{position:fixed;top:0;left:0;right:0;height:var(--nav-height);background:var(--bg-card);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border-color);z-index:1000;transition:all var(--transition-normal)}.nav-container{display:flex;align-items:center;justify-content:space-between;height:100%;max-width:var(--container-max);margin:0 auto;padding:0 24px}.nav-logo{display:flex;align-items:center;gap:12px;font-weight:700;font-size:1.25rem;color:var(--text-primary)}.nav-logo img{width:40px;height:40px;border-radius:10px}.nav-links{display:flex;align-items:center;gap:32px}.nav-link{color:var(--text-secondary);font-weight:500;font-size:.95rem;padding:8px 0;position:relative}.nav-link::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--gradient-hero);transition:width var(--transition-fast)}.nav-link.active,.nav-link:hover{color:var(--color-primary)}.nav-link.active::after,.nav-link:hover::after{width:100%}.nav-actions{display:flex;align-items:center;gap:16px}.theme-toggle{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border:none;background:0 0;color:var(--text-secondary);cursor:pointer;border-radius:var(--radius-sm);transition:all var(--transition-fast)}.theme-toggle:hover{background:var(--bg-secondary);color:var(--color-primary)}.theme-toggle svg{width:22px;height:22px}.mobile-menu-toggle{display:none;flex-direction:column;gap:5px;padding:8px;background:0 0;border:none;cursor:pointer}.mobile-menu-toggle span{width:24px;height:2px;background:var(--text-primary);transition:all var(--transition-fast)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;font-weight:600;font-size:1rem;border-radius:var(--radius-md);border:none;cursor:pointer;transition:all var(--transition-fast);text-decoration:none}.btn-primary{background:var(--gradient-hero);color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);color:#fff}.btn-secondary{background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-color)}.btn-secondary:hover{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.btn-outline{background:0 0;color:var(--color-primary);border:2px solid var(--color-primary)}.btn-outline:hover{background:var(--color-primary);color:#fff}.btn-lg{padding:16px 32px;font-size:1.1rem;border-radius:var(--radius-lg)}.hero{min-height:100vh;display:flex;align-items:center;padding-top:var(--nav-height);background:var(--gradient-card);position:relative;overflow:hidden}.hero::before{content:'';position:absolute;top:-50%;right:-30%;width:80%;height:150%;background:radial-gradient(circle,rgba(0,118,255,.08) 0,transparent 70%);pointer-events:none}.hero-container{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;padding:60px 24px;max-width:var(--container-max);margin:0 auto}.hero-content{z-index:1}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;background:rgba(0,118,255,.1);color:var(--color-primary);font-size:.9rem;font-weight:600;border-radius:100px;margin-bottom:24px}.hero-title{font-size:3.5rem;font-weight:800;line-height:1.1;margin-bottom:24px;background:var(--gradient-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:1.25rem;color:var(--text-secondary);margin-bottom:40px;line-height:1.7}.hero-actions{display:flex;gap:16px;flex-wrap:wrap}.hero-image{position:relative;display:flex;justify-content:center;align-items:center}.hero-phone{max-width:320px;border-radius:40px;overflow:hidden;box-shadow:0 30px 60px rgba(0,118,255,.25);animation:float 6s ease-in-out infinite}@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-20px)}}.hero-glow{position:absolute;width:400px;height:400px;background:radial-gradient(circle,rgba(0,118,255,.3) 0,transparent 70%);filter:blur(60px);z-index:-1}.features{padding:var(--section-padding) 0;background:var(--bg-secondary)}.section-header{text-align:center;max-width:700px;margin:0 auto 60px}.section-title{font-size:2.5rem;font-weight:700;margin-bottom:16px;color:var(--text-primary)}.section-subtitle{font-size:1.15rem;color:var(--text-secondary)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}.feature-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:32px;transition:all var(--transition-normal);backdrop-filter:blur(10px)}.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:var(--color-primary)}.feature-icon{width:56px;height:56px;display:flex;align-items:center;justify-content:center;background:var(--gradient-hero);border-radius:var(--radius-md);margin-bottom:20px}.feature-icon svg{width:28px;height:28px;color:#fff}.feature-title{font-size:1.25rem;font-weight:600;margin-bottom:12px;color:var(--text-primary)}.feature-desc{color:var(--text-secondary);font-size:.95rem;line-height:1.6}.download{padding:var(--section-padding) 0;background:var(--gradient-hero);color:#fff;text-align:center}.download .section-title{color:#fff}.download .section-subtitle{color:rgba(255,255,255,.85)}.download-buttons{display:flex;justify-content:center;gap:20px;margin-top:40px;flex-wrap:wrap}.app-store-btn{display:inline-flex;align-items:center;gap:12px;padding:14px 28px;background:rgba(255,255,255,.15);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2);border-radius:var(--radius-md);color:#fff;transition:all var(--transition-fast)}.app-store-btn:hover{background:#fff;color:var(--color-primary);transform:translateY(-4px)}.app-store-btn svg{width:28px;height:28px}.app-store-btn .text{display:flex;flex-direction:column;align-items:flex-start;text-align:left}.app-store-btn .text small{font-size:.75rem;opacity:.85}.app-store-btn .text strong{font-size:1.1rem}.footer{padding:60px 0 30px;background:var(--bg-secondary);border-top:1px solid var(--border-color)}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:40px;margin-bottom:40px}.footer-brand{max-width:300px}.footer-logo{display:flex;align-items:center;gap:12px;font-weight:700;font-size:1.25rem;color:var(--text-primary);margin-bottom:16px}.footer-logo img{width:36px;height:36px;border-radius:8px}.footer-desc{color:var(--text-secondary);font-size:.95rem;line-height:1.6}.footer-column h4{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:20px}.footer-links{display:flex;flex-direction:column;gap:12px}.footer-link{color:var(--text-secondary);font-size:.95rem;transition:color var(--transition-fast)}.footer-link:hover{color:var(--color-primary)}.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:30px;border-top:1px solid var(--border-color);color:var(--text-muted);font-size:.9rem}.page-header{padding:120px 0 60px;background:var(--gradient-card);text-align:center;margin-top:var(--nav-height)}.page-title{font-size:2.5rem;font-weight:700;margin-bottom:16px;background:var(--gradient-hero);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.page-subtitle{color:var(--text-secondary);font-size:1.1rem}.content-section{padding:var(--section-padding) 0}.content-wrapper{max-width:800px;margin:0 auto}.feedback-form,.success-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-xl);box-shadow:var(--shadow-md)}.alert{padding:14px 16px;margin-bottom:24px;border:1px solid transparent;border-radius:var(--radius-md)}.alert-warning{background-color:rgba(245,158,11,.1);border-color:rgba(245,158,11,.2);color:#d97706}[data-theme=dark] .alert-warning{background-color:rgba(245,158,11,.16);border-color:rgba(245,158,11,.3);color:#f2bf67}.alert-link{color:inherit;font-weight:600;text-decoration:underline}.support-alert{line-height:1.7}.support-alert .alert-link:hover{color:inherit}.feedback-form{display:flex;flex-direction:column;gap:24px;padding:36px}.form-field{display:flex;flex-direction:column;gap:10px}.form-label{font-size:1.1rem;font-weight:600;color:var(--text-primary)}.form-input{width:100%;padding:16px 18px;border:1px solid rgba(0,118,255,.18);border-radius:var(--radius-md);background:rgba(255,255,255,.92);color:var(--text-primary);font:inherit;line-height:1.5;transition:border-color var(--transition-fast),box-shadow var(--transition-fast),background-color var(--transition-fast)}[data-theme=dark] .form-input{background:rgba(13,17,23,.92)}.form-input::placeholder{color:var(--text-muted)}.form-input:focus{outline:0;border-color:var(--color-primary);box-shadow:0 0 0 4px rgba(0,118,255,.12)}textarea.form-input{min-height:160px;resize:vertical}.form-input.is-error{border-color:#ef4444;box-shadow:0 0 0 4px rgba(239,68,68,.12)}.form-error{color:#dc2626;font-size:.95rem}.form-actions{display:flex;justify-content:center}.form-actions .btn{min-width:220px}.success-card{display:flex;flex-direction:column;align-items:center;text-align:center;padding:48px 36px}.success-icon{width:72px;height:72px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(0,118,255,.1);color:var(--color-primary);margin-bottom:20px}.success-icon svg{width:36px;height:36px}.content-wrapper h2{font-size:1.75rem;font-weight:600;color:var(--text-primary);margin:48px 0 20px}.content-wrapper h2:first-child{margin-top:0}.content-wrapper h3{font-size:1.35rem;font-weight:600;color:var(--text-primary);margin:32px 0 16px}.content-wrapper p{color:var(--text-secondary);margin-bottom:16px;line-height:1.8}.content-wrapper ol,.content-wrapper ul{color:var(--text-secondary);margin:16px 0;padding-left:24px}.content-wrapper li{margin-bottom:8px;line-height:1.7}.content-wrapper strong{color:var(--text-primary)}.faq-list{max-width:800px;margin:0 auto}.faq-item{border:1px solid var(--border-color);border-radius:var(--radius-md);margin-bottom:16px;background:var(--bg-card);overflow:hidden;scroll-margin-top:calc(var(--nav-height) + 20px);transition:all var(--transition-normal)}.faq-item:hover{border-color:var(--color-primary)}.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:20px 24px;background:0 0;border:none;font-size:1.1rem;font-weight:600;color:var(--text-primary);cursor:pointer;text-align:left}.faq-question svg{width:20px;height:20px;color:var(--color-primary);transition:transform var(--transition-fast)}.faq-item.active .faq-question svg{transform:rotate(180deg)}.faq-answer{max-height:0;overflow:hidden;transition:max-height var(--transition-normal)}.faq-item.active .faq-answer{max-height:500px}.faq-answer-content{padding:0 24px 20px;color:var(--text-secondary);line-height:1.7}.sdk-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px;max-width:900px;margin:0 auto}.sdk-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:24px;transition:all var(--transition-normal)}.sdk-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-md)}.sdk-header{display:flex;align-items:center;gap:16px;margin-bottom:16px}.sdk-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--gradient-card);border-radius:var(--radius-sm)}.sdk-icon img{width:28px;height:28px}.sdk-name{font-size:1.15rem;font-weight:600;color:var(--text-primary)}.sdk-version{font-size:.85rem;color:var(--text-muted)}.sdk-desc{color:var(--text-secondary);font-size:.95rem;line-height:1.6;margin-bottom:16px}.sdk-link{display:inline-flex;align-items:center;gap:6px;color:var(--color-primary);font-weight:500;font-size:.9rem}.sdk-link svg{width:16px;height:16px}.docs-layout{display:grid;grid-template-columns:260px 1fr;gap:48px;padding:var(--section-padding) 0}.docs-sidebar{position:sticky;top:calc(var(--nav-height) + 24px);align-self:start;max-height:calc(100vh - var(--nav-height) - 48px);overflow-y:auto}.docs-nav{display:flex;flex-direction:column;gap:8px}.docs-nav-item{display:flex;align-items:center;gap:12px;padding:12px 16px;color:var(--text-secondary);border-radius:var(--radius-sm);font-weight:500;transition:all var(--transition-fast)}.docs-nav-item:hover{background:var(--bg-secondary);color:var(--color-primary)}.docs-nav-item.active{background:rgba(0,118,255,.1);color:var(--color-primary)}.docs-content{min-width:0}.docs-content h1{font-size:2rem;font-weight:700;color:var(--text-primary);margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--border-color)}.docs-content h2{font-size:1.5rem;font-weight:600;color:var(--text-primary);margin:40px 0 16px}.docs-content p{color:var(--text-secondary);margin-bottom:16px;line-height:1.8}.docs-content code{background:var(--bg-secondary);padding:2px 8px;border-radius:4px;font-family:'SF Mono',Monaco,'Cascadia Code',monospace;font-size:.9em;color:var(--color-primary)}.docs-content pre{background:var(--bg-secondary);border-radius:var(--radius-md);padding:20px;overflow-x:auto;margin:20px 0}.docs-content pre code{background:0 0;padding:0}.tip-box{background:rgba(0,118,255,.08);border-left:4px solid var(--color-primary);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:16px 20px;margin:20px 0}.tip-box strong{color:var(--color-primary);align-items:center;gap:8px;margin-bottom:8px}.tip-box p{margin:0}@media (max-width:1024px){.docs-layout{grid-template-columns:1fr}.docs-sidebar{position:relative;top:0;flex-direction:row;flex-wrap:wrap;gap:8px;padding-bottom:24px;border-bottom:1px solid var(--border-color)}.docs-nav{flex-direction:row;flex-wrap:wrap}}@media (max-width:900px){.hero-container{grid-template-columns:1fr;text-align:center;gap:40px}.hero-title{font-size:2.75rem}.hero-actions{justify-content:center}.hero-phone{max-width:260px}.footer-grid{grid-template-columns:repeat(2,1fr);gap:30px}.footer-brand{grid-column:span 2}}@media (max-width:768px){:root{--section-padding:60px}.page-header{padding:104px 0 48px}.page-title{font-size:2rem}.page-subtitle{font-size:1rem}.nav-links{display:none;position:absolute;top:var(--nav-height);left:0;right:0;flex-direction:column;background:var(--bg-card);padding:20px;gap:8px;border-bottom:1px solid var(--border-color)}.nav-links.active{display:flex}.nav-link{padding:12px 16px;width:100%}.nav-actions .btn-primary{display:none}.mobile-menu-toggle{display:flex}.hero-title{font-size:2.25rem}.hero-subtitle{font-size:1.1rem}.section-title{font-size:2rem}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{flex-direction:column;gap:16px;text-align:center}.feedback-form,.success-card{border-radius:var(--radius-lg)}.feedback-form{padding:28px 22px;gap:20px}.form-actions .btn{width:100%;min-width:0}.sdk-grid{grid-template-columns:1fr}}@media (max-width:480px){.container{padding:0 16px}.hero-title{font-size:1.85rem}.page-header{padding:96px 0 40px}.page-title{font-size:1.75rem}.feedback-form{padding:22px 16px}.form-label{font-size:1rem}.form-input{padding:14px 16px}.success-card{padding:36px 20px}.hero-actions{flex-direction:column;width:100%}.btn-lg{width:100%;justify-content:center}.download-buttons{flex-direction:column;align-items:center}.app-store-btn{width:100%;max-width:280px;justify-content:center}}