@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--bg-dark: #0a0a0a;--bg-card: rgba(255, 255, 255, .05);--primary: #8b5cf6;--primary-glow: rgba(139, 92, 246, .5);--secondary: #06b6d4;--secondary-glow: rgba(6, 182, 212, .5);--text-main: #ffffff;--text-muted: #a1a1aa;--border-color: rgba(255, 255, 255, .1);--font-main: "Inter", sans-serif}*{margin:0;padding:0;box-sizing:border-box}body{background-color:var(--bg-dark);color:var(--text-main);font-family:var(--font-main);min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased}a{text-decoration:none;color:inherit}button{border:none;outline:none;cursor:pointer;font-family:inherit}.container{max-width:1200px;margin:0 auto;padding:0 20px}.glass{background:var(--bg-card);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border-color)}.text-gradient{background:linear-gradient(to right,var(--primary),var(--secondary));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.btn{padding:10px 24px;border-radius:8px;font-weight:600;transition:all .3s ease}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 0 20px var(--primary-glow)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 30px var(--primary-glow)}.btn-secondary{background:transparent;border:1px solid var(--border-color);color:#fff}.btn-secondary:hover{background:#ffffff0d;border-color:var(--text-main)}@media(max-width:768px){.container{padding:0 15px}.btn{padding:12px 20px;font-size:15px}@media(hover:none){.btn:hover{transform:none}}}.navbar{position:fixed;top:0;left:0;width:100%;z-index:900;padding:20px 0;transition:all .3s ease}.navbar.scrolled{padding:15px 0;background:#0a0a0acc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color)}.nav-content{display:flex;align-items:center;justify-content:space-between;max-width:1400px;margin:0 auto;padding:0 40px;width:100%;position:relative}.logo{font-size:24px;font-weight:700;color:var(--text-main);display:flex;align-items:center;z-index:1002;flex-shrink:0}.logo span{color:var(--primary)}.hamburger{display:none;flex-direction:column;gap:5px;background:transparent;border:none;cursor:pointer;padding:5px;z-index:1002;position:relative}.hamburger span{width:25px;height:2px;background:var(--text-main);transition:all .3s ease;border-radius:2px}.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(7px,7px)}.hamburger.active span:nth-child(2){opacity:0}.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(7px,-7px)}.nav-links{display:flex;gap:40px;justify-content:center;position:fixed;left:50%;transform:translate(-50%);top:20px;z-index:999;background:#0a0a0a99;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:8px 24px;border-radius:50px;border:1px solid rgba(255,255,255,.1)}.navbar.scrolled .nav-links{top:15px;background:#0a0a0acc;border-color:#8b5cf633}.nav-link{pointer-events:auto}.nav-link{color:var(--text-muted);font-weight:500;transition:all .3s ease;position:relative;padding:8px 0;font-size:15px}.nav-link:hover{color:var(--text-main);transform:translateY(-1px)}.nav-link:after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background:linear-gradient(to right,var(--primary),var(--secondary));transition:width .3s ease;border-radius:2px}.nav-link:hover:after{width:100%}.nav-actions{display:flex;gap:15px;align-items:center;flex-shrink:0;position:relative;z-index:1002}.mobile-only-actions{display:none}.desktop-only{display:inline-block}.lang-switcher{position:relative;margin-right:10px;cursor:pointer;z-index:1002}.lang-btn{display:flex;align-items:center;gap:8px;color:var(--text-main);font-weight:600;background:transparent;padding:8px 12px;border-radius:8px;transition:all .3s ease;font-size:15px}.lang-btn:hover{background:#ffffff0d}.lang-icon{width:20px;height:20px;stroke:var(--text-main)}.lang-arrow{width:12px;height:12px;stroke:var(--text-main);transition:transform .3s ease}.lang-switcher.active .lang-arrow{transform:rotate(180deg)}.lang-dropdown{position:absolute;top:100%;right:0;margin-top:10px;background:var(--bg-dark);border:1px solid var(--border-color);border-radius:12px;padding:8px;min-width:140px;box-shadow:0 10px 30px #00000080;opacity:0;transform:translateY(-10px);pointer-events:none;transition:all .3s ease;z-index:1003}.lang-switcher.active .lang-dropdown{opacity:1;transform:translateY(0);pointer-events:all}.lang-option{display:flex;align-items:center;gap:10px;padding:10px 12px;color:var(--text-muted);border-radius:8px;transition:all .2s ease;cursor:pointer}.lang-option:hover{background:#ffffff0d;color:var(--text-main)}.lang-option.selected{color:var(--primary);background:#8b5cf61a}@media(max-width:768px){.nav-content{display:flex;justify-content:space-between;padding:0 20px}.hamburger{display:flex;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:8px}.hamburger:active{transform:scale(.95)}.nav-links{position:fixed!important;top:0!important;left:auto!important;right:-100%;width:85%;max-width:420px;height:100vh;transform:none!important;background:#0a0a0a!important;-webkit-backdrop-filter:none!important;backdrop-filter:none!important;flex-direction:column;padding:80px 30px 30px;gap:5px;transition:right .35s cubic-bezier(.4,0,.2,1)!important;border-left:1px solid rgba(139,92,246,.3);border-radius:0!important;z-index:1001;overflow-y:auto;box-shadow:-5px 0 20px #00000080}.nav-links.mobile-active{right:0}.nav-link{font-size:18px!important;padding:12px 0!important;color:var(--text-main)!important;font-weight:500;transition:all .2s ease!important;border-bottom:1px solid rgba(255,255,255,.05);transform:none!important}.nav-link:hover{color:var(--primary)!important;padding-left:10px!important}.nav-link:after{display:none!important}.nav-link:after{display:none}.mobile-only-actions{display:flex;flex-direction:column;gap:15px;margin-top:30px;padding-top:30px;border-top:1px solid rgba(139,92,246,.2)}.mobile-only-actions .btn{width:100%;text-align:center}.desktop-only{display:none}.nav-actions{gap:10px}.lang-switcher{margin-right:0}.lang-btn{padding:6px 10px;font-size:14px}.lang-btn span{display:none}}.hero{min-height:85vh;display:flex;align-items:center;justify-content:center;position:relative;padding:120px 0 80px;overflow:hidden}.hero:before{content:"";position:absolute;top:-50%;left:-20%;width:80%;height:80%;background:radial-gradient(circle,var(--primary-glow) 0%,transparent 70%);opacity:.2;z-index:-1}.hero:after{content:"";position:absolute;bottom:-20%;right:-10%;width:60%;height:60%;background:radial-gradient(circle,var(--secondary-glow) 0%,transparent 70%);opacity:.2;z-index:-1}.hero-content{display:flex;flex-direction:column;align-items:center;text-align:center;max-width:800px;margin:0 auto;z-index:1}.hero-badge{background:#8b5cf61a;border:1px solid var(--primary);color:var(--primary);padding:6px 16px;border-radius:20px;font-size:14px;font-weight:600;margin-bottom:24px;text-transform:uppercase;letter-spacing:1px}.hero-title{font-size:64px;font-weight:800;line-height:1.1;margin-bottom:24px;background:linear-gradient(to bottom,#fff,#a1a1aa);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.hero-subtitle{font-size:20px;color:var(--text-muted);margin-bottom:40px;line-height:1.6;max-width:600px}.hero-buttons{display:flex;gap:20px;margin-bottom:60px}@media(max-width:768px){.hero{padding-top:100px;min-height:auto;padding-bottom:60px}.hero-title{font-size:36px}.hero-subtitle{font-size:16px;padding:0 20px}.hero-buttons{flex-direction:column;width:100%;padding:0 20px}.hero-buttons .btn{width:100%;text-align:center}}.features{padding:100px 0;position:relative}.features-header{text-align:center;margin-bottom:60px}.features-title{font-size:42px;font-weight:700;margin-bottom:16px}.features-subtitle{color:var(--text-muted);font-size:18px;max-width:600px;margin:0 auto}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}.feature-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:16px;padding:32px;transition:all .3s ease;position:relative;overflow:hidden}.feature-card:hover{transform:translateY(-5px);border-color:var(--primary);box-shadow:0 10px 30px -10px #8b5cf633}.feature-icon{width:60px;height:60px;border-radius:12px;background:#8b5cf61a;display:flex;align-items:center;justify-content:center;margin-bottom:24px;color:var(--primary);font-size:24px}.feature-card h3{font-size:20px;margin-bottom:12px;color:var(--text-main)}.feature-card p{color:var(--text-muted);line-height:1.6}.feature-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:radial-gradient(circle at top right,rgba(139,92,246,.1),transparent 40%);opacity:0;transition:opacity .3s ease}.feature-card:hover:before{opacity:1}@media(max-width:768px){.features{padding:60px 0}.features-title{font-size:32px}.features-subtitle{font-size:16px;padding:0 20px}.features-grid{grid-template-columns:1fr;gap:20px;padding:0 20px}.feature-card{padding:24px}}.reviews{padding:100px 0;background:var(--bg-dark)}.reviews-header{text-align:center;margin-bottom:60px}.reviews-title{font-size:42px;font-weight:700;margin-bottom:16px;color:var(--text-main)}.reviews-subtitle{color:var(--text-muted);font-size:18px;max-width:600px;margin:0 auto}.reviews-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}.review-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:16px;padding:40px;position:relative;transition:all .3s ease}.review-card:hover{border-color:var(--primary);transform:translateY(-5px);box-shadow:0 10px 30px -10px #8b5cf633}.review-quote-icon{color:var(--primary);font-size:40px;line-height:1;margin-bottom:20px;opacity:.5}.review-text{color:var(--text-main);font-size:16px;line-height:1.6;margin-bottom:20px}.review-author{color:var(--text-muted);font-size:14px;font-weight:500;text-align:right}@media(max-width:768px){.reviews{padding:60px 0}.reviews-title{font-size:32px}.reviews-subtitle{font-size:16px;padding:0 20px}.reviews-grid{grid-template-columns:1fr;gap:20px;padding:0 20px}.review-card{padding:30px 20px}}.pricing{padding:100px 20px;position:relative;background:linear-gradient(to bottom,var(--bg-dark),#0f0f0f);min-height:80vh}.pricing-header{text-align:center;margin-bottom:60px;max-width:800px;margin-left:auto;margin-right:auto}.pricing-title{font-size:42px;font-weight:700;margin-bottom:16px}.pricing-subtitle{color:var(--text-muted);font-size:18px;max-width:600px;margin:0 auto 16px}.currency-note{color:var(--primary);font-size:14px;font-weight:500}.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:40px;max-width:1000px;margin:0 auto}.product-card{background:#0a0a0a;border:1px solid rgba(255,255,255,.1);border-radius:20px;padding:40px;text-align:center;box-shadow:0 10px 40px #0000004d;transition:transform .3s ease;color:#fff}.product-card:hover{transform:translateY(-5px);border-color:var(--primary);box-shadow:0 10px 30px -10px #8b5cf64d}.product-icon{width:80px;height:80px;margin:0 auto 20px;border-radius:16px;overflow:hidden;background:#1a1a1a}.product-icon img{width:100%;height:100%;object-fit:cover}.product-title{font-size:24px;font-weight:700;margin-bottom:30px;color:#fff}.pricing-options{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;background:linear-gradient(135deg,#8b5cf6,#06b6d4);padding:20px;border-radius:12px;margin-bottom:30px}.pricing-option{text-align:center}.option-label{font-size:14px;font-weight:600;color:#ffffffe6;margin-bottom:8px}.option-price-usd{font-size:20px;font-weight:700;color:#fff}.option-price-cny{font-size:12px;color:#999;margin-top:4px}@media(max-width:768px){.pricing{padding:80px 20px 60px}.pricing-header{margin-bottom:40px}.pricing-title{font-size:32px}.pricing-subtitle{font-size:16px;padding:0 10px}.pricing-grid{grid-template-columns:1fr;gap:30px}.product-card{padding:30px 20px}.pricing-options{grid-template-columns:1fr;gap:15px;padding:15px}.pricing-option{padding:10px;background:#ffffff1a;border-radius:8px}.option-label{font-size:13px}.option-price-usd{font-size:18px}}.footer{background:#050505;border-top:1px solid var(--border-color);padding:60px 0 20px;margin-top:100px}.footer-content{display:grid;grid-template-columns:1fr 2fr;gap:60px;margin-bottom:60px}.footer-brand h3{font-size:24px;margin-bottom:16px;color:var(--text-main)}.footer-brand p{color:var(--text-muted);line-height:1.6;max-width:300px}.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.footer-column h4{color:var(--text-main);font-size:16px;margin-bottom:20px}.footer-column ul{list-style:none}.footer-column ul li{margin-bottom:12px}.footer-column ul li a{color:var(--text-muted);transition:color .3s ease}.footer-column ul li a:hover{color:var(--primary)}.footer-bottom{text-align:center;padding-top:20px;border-top:1px solid rgba(255,255,255,.05);color:var(--text-muted);font-size:14px}@media(max-width:768px){.footer{padding:40px 0 20px;margin-top:60px}.footer-content{grid-template-columns:1fr;gap:40px;padding:0 20px}.footer-brand p{max-width:100%}.footer-links{grid-template-columns:1fr;gap:30px}.footer-bottom{padding:20px}}.download-section{padding:120px 20px 80px;min-height:100vh;background:radial-gradient(circle at top center,rgba(139,92,246,.1) 0%,transparent 70%)}.download-header{text-align:center;margin-bottom:60px}.download-title{font-size:3rem;font-weight:700;margin-bottom:1rem;background:linear-gradient(to right,#fff,#8b5cf6);-webkit-background-clip:text;background-clip:text;color:transparent}.download-subtitle{color:var(--text-secondary);font-size:1.1rem;max-width:600px;margin:0 auto}.download-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;max-width:1200px;margin:0 auto}.download-card{background:#ffffff08;border:1px solid rgba(255,255,255,.1);border-radius:20px;padding:2rem;text-align:center;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.download-card:hover{transform:translateY(-5px);border-color:var(--primary);box-shadow:0 10px 30px -10px #8b5cf64d}.download-icon{width:80px;height:80px;margin:0 auto 1.5rem;border-radius:16px;overflow:hidden;background:#ffffff0d}.download-icon img{width:100%;height:100%;object-fit:cover}.download-name{font-size:1.5rem;font-weight:600;margin-bottom:1rem;color:var(--text-primary)}.download-desc{color:var(--text-secondary);margin-bottom:2rem;line-height:1.6;font-size:.95rem}.download-btn{display:inline-block;background:linear-gradient(135deg,var(--primary) 0%,var(--secondary) 100%);color:#fff;padding:12px 30px;border-radius:50px;font-weight:600;text-decoration:none;transition:all .3s ease;width:100%}.download-btn:hover{transform:translateY(-2px);box-shadow:0 5px 15px #8b5cf666}@media(max-width:768px){.download-section{padding:100px 20px 60px}.download-header{margin-bottom:40px}.download-title{font-size:2rem}.download-subtitle{font-size:1rem;padding:0 10px}.download-grid{grid-template-columns:1fr;gap:20px}.download-card{padding:24px 20px}.download-name{font-size:1.3rem}.download-desc{font-size:.9rem;margin-bottom:1.5rem}.download-btn{padding:14px 30px;font-size:15px}}.help-section{padding:120px 20px 80px;min-height:100vh;background:radial-gradient(circle at top center,rgba(139,92,246,.1) 0%,transparent 70%)}.help-header{text-align:center;margin-bottom:60px;max-width:800px;margin-left:auto;margin-right:auto}.help-title{font-size:3rem;font-weight:700;margin-bottom:1rem;background:linear-gradient(to right,#fff,#8b5cf6);-webkit-background-clip:text;background-clip:text;color:transparent}.help-subtitle{color:var(--text-muted);font-size:1.1rem}.faq-category{max-width:900px;margin:0 auto 50px}.category-title{font-size:1.75rem;font-weight:600;color:var(--text-main);margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid var(--primary)}.faq-list{display:flex;flex-direction:column;gap:15px}.faq-item{background:#ffffff08;border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:20px;cursor:pointer;transition:all .3s ease;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.faq-item:hover{border-color:var(--primary);background:#ffffff0d;transform:translateY(-2px)}.faq-item.open{border-color:var(--primary);background:#8b5cf60d}.faq-question{display:flex;justify-content:space-between;align-items:center;font-size:1.1rem;font-weight:600;color:var(--text-main);-webkit-user-select:none;user-select:none}.faq-icon{flex-shrink:0;color:var(--primary);transition:transform .3s ease}.faq-item.open .faq-icon{transform:rotate(180deg)}.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease,margin-top .3s ease}.faq-item.open .faq-answer{max-height:500px;margin-top:15px}.faq-answer p{color:var(--text-muted);line-height:1.7;margin:0}@media(max-width:768px){.help-section{padding:100px 20px 60px}.help-title{font-size:2rem}.help-subtitle{font-size:1rem}.category-title{font-size:1.5rem}.faq-question{font-size:1rem}.faq-item{padding:15px}}