*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{color:#1e293b;background:#fff;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.6;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{max-width:1200px;margin:0 auto;padding:0 24px}.section{padding:80px 0}.section-title{text-align:center;color:#0f172a;margin-bottom:16px;font-size:2.25rem;font-weight:800}.section-subtitle{text-align:center;color:#64748b;margin-bottom:48px;font-size:1.1rem}.fade-up{opacity:0;transition:opacity .7s,transform .7s;transform:translateY(30px)}.fade-up.visible{opacity:1;transform:translateY(0)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.4}}@keyframes orbFloat{0%{transform:translate(0)scale(1)}to{transform:translate(30px,-30px)scale(1.1)}}@media (max-width:768px){.container{padding:0 16px}.section{padding:60px 0}.section-title{font-size:1.75rem}.section-desc{font-size:.9rem}}@media (max-width:480px){.section{padding:40px 0}.section-title{font-size:1.5rem}}
.btn{cursor:pointer;border:none;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:14px 32px;font-size:1rem;font-weight:700;text-decoration:none;transition:all .3s;display:inline-flex}.btn-primary{color:#fff;background:linear-gradient(135deg,#ef4444,#f97316);box-shadow:0 4px 20px #ef444459}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px #ef444473}.btn-secondary{color:#ef4444;background:#fff;border:2px solid #ef4444}.btn-secondary:hover{background:#fef2f2;transform:translateY(-2px)}.btn-white{color:#ef4444;background:#fff;box-shadow:0 4px 20px #0000001a}.btn-white:hover{transform:translateY(-2px);box-shadow:0 8px 30px #00000026}.btn-glow{color:#fff;background:linear-gradient(135deg,#ef4444,#f97316);animation:2.5s ease-in-out infinite btnPulse;position:relative;overflow:hidden;box-shadow:0 0 20px #ef444466,0 0 60px #ef444426}.btn-glow:after{content:"";background:linear-gradient(45deg,#0000 30%,#ffffff26 50%,#0000 70%);width:200%;height:200%;animation:3s ease-in-out infinite btnShine;position:absolute;top:-50%;left:-50%}.btn-glow:hover{transform:translateY(-3px)scale(1.02);box-shadow:0 0 30px #ef444480,0 0 80px #ef444433}@keyframes btnPulse{0%,to{box-shadow:0 0 20px #ef444466,0 0 60px #ef444426}50%{box-shadow:0 0 30px #ef444499,0 0 80px #ef444440}}@keyframes btnShine{0%{transform:translate(-100%)rotate(45deg)}30%,to{transform:translate(100%)rotate(45deg)}}.download-btn{position:relative}.platform-indicator{opacity:.85;border-left:1px solid #ffffff4d;align-items:center;margin-left:12px;padding-left:12px;display:inline-flex}.btn-white .platform-indicator{border-left-color:#0f172a33}.btn-primary .platform-indicator{border-left-color:#ffffff4d}
.header{z-index:100;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#ffffffeb;border-bottom:1px solid #0000000f;transition:box-shadow .3s;position:fixed;top:0;left:0;right:0}.header .container{max-width:1400px}.header.scrolled{box-shadow:0 2px 20px #00000014}.nav{justify-content:space-between;align-items:center;height:72px;display:flex}.nav-brand{color:#0f172a;white-space:nowrap;flex-shrink:1;align-items:center;gap:12px;min-width:0;font-size:1.15rem;font-weight:800;display:flex;overflow:hidden}.nav-brand svg,.nav-brand img{flex-shrink:0;width:40px;height:40px}.nav-links{flex-shrink:1;align-items:center;gap:16px;min-width:0;list-style:none;display:flex;overflow:hidden}.nav-links a{color:#475569;white-space:nowrap;font-size:.85rem;font-weight:600;transition:color .2s}.nav-links a:hover,.nav-links a.active{color:#ef4444}.nav-actions{flex-shrink:0;align-items:center;gap:12px;display:flex}.mobile-menu-btn{cursor:pointer;background:0 0;border:none;padding:8px;display:none}.mobile-menu-btn svg{color:#334155;width:28px;height:28px}.mobile-nav{z-index:99;background:#fff;border-bottom:1px solid #e2e8f0;padding:16px 24px;display:none;position:fixed;top:72px;left:0;right:0;box-shadow:0 8px 20px #00000014}.mobile-nav.open{display:block}.mobile-nav a{color:#334155;border-bottom:1px solid #f1f5f9;padding:12px 0;font-size:1rem;font-weight:600;display:block}.mobile-nav a:hover{color:#ef4444}.footer{color:#94a3b8;background:#0f172a;padding:60px 0 32px}.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px;display:grid}.footer-brand h3{color:#fff;margin-bottom:12px;font-size:1.2rem;font-weight:800}.footer-brand p{font-size:.85rem;line-height:1.7}.footer-col h4{color:#e2e8f0;margin-bottom:16px;font-size:.95rem;font-weight:700}.footer-col a{color:#94a3b8;word-break:break-word;padding:4px 0;font-size:.85rem;transition:color .2s;display:block}.footer-col a:hover{color:#ef4444}.footer-bottom{word-break:break-word;border-top:1px solid #ffffff14;flex-wrap:wrap;justify-content:center;align-items:center;gap:16px;padding-top:24px;font-size:.8rem;display:flex}.i18n-lang-switcher{z-index:120;align-items:center;display:inline-flex;position:relative}.i18n-lang-btn{color:#334155;cursor:pointer;background:#ffffffeb;border:1px solid #dbe3ee;border-radius:10px;justify-content:center;align-items:center;gap:6px;padding:8px 14px;font-size:.8rem;font-weight:600;transition:all .2s;display:inline-flex;box-shadow:0 6px 18px #0f172a14}.i18n-lang-btn:hover{color:#0f172a;background:#fff;border-color:#cbd5e1;box-shadow:0 10px 24px #0f172a1f}.i18n-lang-btn svg{width:16px;height:16px}.i18n-lang-dropdown{z-index:1000;background:#fffffffa;border:1px solid #e2e8f0;border-radius:14px;min-width:156px;padding:6px;display:none;position:absolute;top:calc(100% + 8px);right:0;overflow:hidden;box-shadow:0 18px 40px #0f172a29}.i18n-lang-dropdown.open{display:block}.i18n-lang-option{color:#475569;cursor:pointer;border-radius:10px;padding:10px 12px;font-size:.85rem;font-weight:600;transition:background .15s,color .15s}.i18n-lang-option:hover{color:#0f172a;background:#f8fafc}.i18n-lang-option.active{color:#dc2626;background:#ef44441a;font-weight:700}@media (max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr}}@media (max-width:768px){.nav-links,.nav-actions{display:none}.mobile-menu-btn{display:block}.footer-grid{grid-template-columns:1fr;gap:24px}}@media (max-width:480px){.footer-bottom{text-align:center;flex-direction:column;gap:12px}}
.page-hero{background:linear-gradient(135deg,#0a0e1a,#1e293b);padding-top:72px;position:relative;overflow:hidden}.page-hero-inner{text-align:center;z-index:2;padding:80px 0 60px;position:relative}.page-hero h1{color:#f1f5f9;margin-bottom:16px;font-size:2.8rem;font-weight:900}.page-hero h1 .highlight{background:linear-gradient(135deg,#ef4444,#f97316,#fbbf24);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.page-hero p{color:#94a3b8;max-width:600px;margin:0 auto;font-size:1.15rem}.page-hero-orb{filter:blur(80px);border-radius:50%;animation:8s ease-in-out infinite alternate orbFloat;position:absolute}.page-hero-orb-1{background:#ef44441a;width:400px;height:400px;top:-100px;right:-50px}.page-hero-orb-2{background:#3b82f614;width:300px;height:300px;animation-delay:4s;bottom:-80px;left:-50px}@media (max-width:768px){.page-hero h1{font-size:2rem}.page-hero-inner{padding:60px 0 40px}.page-hero-orb-1{width:200px;height:200px}.page-hero-orb-2{width:150px;height:150px}}@media (max-width:480px){.page-hero h1{font-size:1.6rem}.page-hero-orb{display:none}}