:root{--bg-gradient-dark:linear-gradient(135deg,#1a1a1a,#2d2d2d);--bg-gradient-light:linear-gradient(135deg,#f5f5f5,#e0e0e0);--text-color-dark:#fff;--text-color-light:#333;--card-bg-dark:rgba(255,255,255,0.1);--card-bg-light:rgba(0,0,0,0.05);--card-text-dark:#ddd;--card-text-light:#666;--bubble-color-1:100,149,237;--bubble-color-2:135,206,235;--primary-color:#3DDC84;--secondary-color:#007AFF;--accent-color:#00A4EF}
@media(prefers-color-scheme:dark){:root{--bubble-color-1:70,130,180;--bubble-color-2:65,105,225}}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg-gradient-dark);color:var(--text-color-dark);min-height:100vh;display:flex;flex-direction:column;align-items:center;overflow-x:hidden;position:relative}
body::before{content:'';position:fixed;top:0;left:0;width:100%;height:100%;background:linear-gradient(125deg,#00ff8866,#00ffff66,#ff00ff66);background-size:400% 400%;animation:gradientMove 15s ease infinite;z-index:-1;filter:blur(100px)}
body.light-theme{background:var(--bg-gradient-light);color:var(--text-color-light)}
body.light-theme::before{background:linear-gradient(125deg,#2196f366,#00bcd466,#e91e6366);opacity:0.6}
@keyframes gradientMove{0%,100%{background-position:0% 50%}25%{background-position:100% 50%}50%{background-position:50% 100%}75%{background-position:0% 50%}}
.container{text-align:center;padding:20px;margin-top:20px;width:100%;max-width:1200px;margin-left:auto;margin-right:auto;transform:translateZ(0);will-change:transform}
.logo{width:100px;height:100px;margin-bottom:20px;transition:transform .3s ease}
.logo:hover{transform:scale(1.05)}
h1{font-size:2em;margin-bottom:15px;background:linear-gradient(135deg,#fff,#e0e0e0);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.light-theme h1{background:linear-gradient(135deg,#333,#666);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.download-buttons{display:flex;gap:20px;flex-wrap:wrap;justify-content:center;padding:0 20px;margin:30px auto;max-width:600px}
.download-button{display:flex;align-items:center;gap:12px;padding:14px 28px;min-width:200px;border-radius:50px;color:white;text-decoration:none;font-size:1.2em;transition:all .3s cubic-bezier(.4,0,.2,1);border:none;cursor:pointer;transform:translateZ(0);position:relative;overflow:hidden}
.download-button::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .5s}
.download-button:hover::before{left:100%}
.download-button i{font-size:2rem}
.download-button:hover{transform:translateY(-3px);box-shadow:0 8px 25px rgba(0,0,0,.3)}
.download-button:active{transform:translateY(-1px)}
.android{background:linear-gradient(135deg,#3DDC84,#2BC471);box-shadow:0 4px 15px rgba(61,220,132,.4)}
.ios{background:linear-gradient(135deg,#007AFF,#0066D6);box-shadow:0 4px 15px rgba(0,122,255,.4)}
.windows{background:linear-gradient(135deg,#00A4EF,#008BD4);box-shadow:0 4px 15px rgba(0,164,239,.4)}
.platform-icon{width:32px;height:32px;object-fit:contain;transition:transform .3s ease}
.download-button:hover .platform-icon{transform:scale(1.1)}
.button-text{display:flex;flex-direction:column;text-align:left}
.button-text small{font-size:.8rem;opacity:.9}
.button-text strong{font-size:1.1rem}
.download-stats{display:flex;justify-content:center;gap:40px;margin:30px auto;padding:25px;background:var(--card-bg-dark);border-radius:20px;backdrop-filter:blur(10px);max-width:600px}
.stat-item{display:flex;flex-direction:column;align-items:center;gap:8px;padding:15px;border-radius:12px;transition:all .3s ease;transform:translateZ(0)}
.stat-item:hover{transform:translateY(-5px);background:rgba(255,255,255,.1);box-shadow:0 4px 15px rgba(0,0,0,.1)}
.stat-number{font-size:2em;font-weight:700;color:var(--text-color-dark);opacity:0;transform:translateY(20px);animation:fadeInUp .8s ease forwards}
.stat-label{font-size:.95em;color:var(--card-text-dark);opacity:0;transform:translateY(20px);animation:fadeInUp .8s ease forwards .2s}
.stat-item:nth-child(1) .stat-number{animation-delay:.2s}
.stat-item:nth-child(2) .stat-number{animation-delay:.4s}
.stat-item:nth-child(3) .stat-number{animation-delay:.6s}
.stat-item:nth-child(1) .stat-label{animation-delay:.4s}
.stat-item:nth-child(2) .stat-label{animation-delay:.6s}
.stat-item:nth-child(3) .stat-label{animation-delay:.8s}
.light-theme .download-stats{background:var(--card-bg-light)}
.light-theme .stat-item:hover{background:rgba(0,0,0,.05)}
.light-theme .stat-number{color:var(--text-color-light)}
.light-theme .stat-label{color:var(--card-text-light)}
@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.features{margin-top:50px;max-width:1200px;width:100%;padding:0 20px;margin-left:auto;margin-right:auto}
.features h2{color:var(--text-color-dark);margin-bottom:30px;text-align:center;font-size:1.8em}
.light-theme .features h2{color:var(--text-color-light)}
.feature-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;justify-content:center;margin:0 auto}
.feature-card{background:var(--card-bg-dark);border-radius:16px;padding:25px;backdrop-filter:blur(10px);transition:all .3s cubic-bezier(.4,0,.2,1);transform:translateZ(0);border:1px solid rgba(255,255,255,.1)}
.feature-card:hover{transform:translateY(-8px) scale(1.02);box-shadow:0 15px 35px rgba(0,0,0,.2);border-color:rgba(255,255,255,.2)}
.feature-card h3{color:var(--text-color-dark);margin-top:0;margin-bottom:12px;font-size:1.2em}
.feature-card p{color:var(--card-text-dark);margin:0;line-height:1.6}
.light-theme .feature-card{background:var(--card-bg-light);border-color:rgba(0,0,0,.1)}
.light-theme .feature-card:hover{border-color:rgba(0,0,0,.15)}
.light-theme .feature-card h3{color:var(--text-color-light)}
.light-theme .feature-card p{color:var(--card-text-light)}
.screenshot-carousel{margin:50px auto;max-width:400px;padding:0 20px}
.screenshot-carousel h2{text-align:center;margin-bottom:25px;color:var(--text-color-dark)}
.light-theme .screenshot-carousel h2{color:var(--text-color-light)}
.carousel-container{position:relative;overflow:hidden;border-radius:20px;background:var(--card-bg-dark);backdrop-filter:blur(10px);padding:20px}
.carousel-track{display:flex;transition:transform .5s cubic-bezier(.4,0,.2,1)}
.carousel-slide{flex:0 0 100%;padding:0 10px;box-sizing:border-box;transform:translateZ(0)}
.carousel-slide img{width:100%;max-width:300px;height:auto;margin:0 auto;display:block;border-radius:15px;box-shadow:0 15px 30px rgba(0,0,0,.25);transition:transform .5s ease}
.carousel-button{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.2);border:none;width:40px;height:40px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease}
.carousel-button:hover{background:rgba(255,255,255,.35);transform:translateY(-50%) scale(1.1)}
.carousel-button.prev{left:15px}
.carousel-button.next{right:15px}
.carousel-button svg{width:24px;height:24px;fill:white}
.carousel-indicators{display:flex;justify-content:center;gap:12px;margin-top:20px}
.indicator{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.3);cursor:pointer;transition:all .3s ease}
.indicator.active{background:white;transform:scale(1.3)}
.light-theme .carousel-container{background:var(--card-bg-light)}
.light-theme .carousel-button{background:rgba(0,0,0,.1)}
.light-theme .carousel-button:hover{background:rgba(0,0,0,.2)}
.light-theme .carousel-button svg{fill:#333}
.light-theme .indicator{background:rgba(0,0,0,.2)}
.light-theme .indicator.active{background:#333}
.contact-section{padding:60px 20px}
.contact-section h2{text-align:center;margin-bottom:30px;color:var(--text-color-dark);font-size:1.8em}
.light-theme .contact-section h2{color:var(--text-color-light)}
.contact-container{max-width:600px;margin:0 auto}
.contact-card{padding:30px;border-radius:16px;background:var(--card-bg-dark);backdrop-filter:blur(10px)}
.contact-items{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
.contact-item{display:flex;align-items:center;gap:12px;padding:16px 20px;text-decoration:none;color:var(--text-color-dark);border-radius:12px;border:1px solid rgba(255,255,255,.15);transition:all .3s cubic-bezier(.4,0,.2,1);background:rgba(255,255,255,.05)}
.contact-item:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(0,0,0,.15)}
.contact-item i{font-size:1.5rem;width:24px;text-align:center}
.contact-item span{font-size:1rem;font-weight:500}
.contact-item.discord:hover{border-color:#5865F2;color:#5865F2}
.contact-item.qq:hover{border-color:#12B7F5;color:#12B7F5}
.light-theme .contact-card{background:var(--card-bg-light)}
.light-theme .contact-item{color:var(--text-color-light);border-color:rgba(0,0,0,.1)}
.light-theme .contact-item:hover{background:rgba(0,0,0,.03)}
.partners-section{padding:60px 0}
.partners-container{max-width:1200px;margin:0 auto;padding:0 20px}
.partners-container h2{text-align:center;margin-bottom:40px;color:var(--text-color-dark)}
.light-theme .partners-container h2{color:var(--text-color-light)}
.partner-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;max-width:700px;margin:0 auto;padding:0 20px}
.partner-card{position:relative;background:rgba(255,255,255,.95);border-radius:12px;padding:30px 20px;text-align:center;transition:all .3s cubic-bezier(.4,0,.2,1);overflow:hidden;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 15px rgba(0,0,0,.08)}
.partner-card img{width:auto;height:60%;object-fit:contain;transition:transform .3s ease}
.partner-card:hover{transform:translateY(-5px);box-shadow:0 12px 30px rgba(0,0,0,.12)}
.partner-card:hover img{transform:scale(.95)}
.background-animation{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:-1;overflow:hidden}
.bubble{position:absolute;border-radius:50%;background:linear-gradient(45deg,rgba(var(--bubble-color-1),.08),rgba(var(--bubble-color-2),.08));backdrop-filter:blur(1px);animation:float var(--duration) ease-in-out infinite}
.bubble:nth-child(1){--size:120px;--duration:20s;width:var(--size);height:var(--size);left:10%;animation-delay:0s}
.bubble:nth-child(2){--size:80px;--duration:18s;width:var(--size);height:var(--size);left:25%;animation-delay:-2s}
.bubble:nth-child(3){--size:100px;--duration:22s;width:var(--size);height:var(--size);left:40%;animation-delay:-4s}
.bubble:nth-child(4){--size:90px;--duration:25s;width:var(--size);height:var(--size);left:55%;animation-delay:-6s}
.bubble:nth-child(5){--size:130px;--duration:21s;width:var(--size);height:var(--size);left:70%;animation-delay:-8s}
.bubble:nth-child(6){--size:110px;--duration:19s;width:var(--size);height:var(--size);left:85%;animation-delay:-10s}
.bubble:nth-child(7){--size:95px;--duration:23s;width:var(--size);height:var(--size);left:15%;animation-delay:-12s}
.bubble:nth-child(8){--size:115px;--duration:24s;width:var(--size);height:var(--size);left:30%;animation-delay:-14s}
.bubble:nth-child(9){--size:85px;--duration:20s;width:var(--size);height:var(--size);left:45%;animation-delay:-16s}
.bubble:nth-child(10){--size:125px;--duration:26s;width:var(--size);height:var(--size);left:60%;animation-delay:-18s}
@keyframes float{0%,100%{transform:translateY(100vh) scale(1)}50%{transform:translateY(-10vh) scale(1.1)}}
.theme-toggle{position:fixed;top:20px;right:20px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);cursor:pointer;padding:12px;border-radius:50%;z-index:1000;color:var(--text-color-dark);transition:all .3s ease;backdrop-filter:blur(10px)}
.theme-toggle:hover{background:rgba(255,255,255,.2);transform:rotate(30deg)}
.theme-toggle svg{width:24px;height:24px;fill:currentColor;transition:transform .3s ease}
.light-theme .theme-toggle{color:var(--text-color-light);background:rgba(0,0,0,.05);border-color:rgba(0,0,0,.1)}
.light-theme .theme-toggle:hover{background:rgba(0,0,0,.1)}
.back-to-top{position:fixed;bottom:30px;right:30px;width:45px;height:45px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;visibility:hidden;transition:all .3s cubic-bezier(.4,0,.2,1);z-index:1000;border:none;background:linear-gradient(135deg,#667eea,#764ba2);box-shadow:0 4px 15px rgba(102,126,234,.4)}
.back-to-top.visible{opacity:1;visibility:visible}
.back-to-top svg{width:20px;height:20px;fill:white}
.back-to-top:hover{transform:translateY(-5px);box-shadow:0 8px 25px rgba(102,126,234,.5)}
.light-theme .back-to-top{background:linear-gradient(135deg,#333,#555);box-shadow:0 4px 15px rgba(0,0,0,.2)}
footer{text-align:center;padding:30px 20px;margin-top:50px;color:var(--text-color-dark);font-size:.9em;border-top:1px solid rgba(255,255,255,.1)}
footer a{color:inherit;text-decoration:none;margin:0 10px;transition:color .3s ease}
footer a:hover{color:var(--primary-color)}
.light-theme footer{color:var(--text-color-light);border-top-color:rgba(0,0,0,.1)}
.friend-links{display:flex;flex-wrap:wrap;justify-content:center;gap:15px;padding:20px;max-width:1200px;margin:0 auto}
.friend-link-card{color:var(--text-color-dark);text-decoration:none;padding:12px 24px;background:var(--card-bg-dark);border-radius:10px;backdrop-filter:blur(10px);transition:all .3s ease;box-shadow:0 4px 6px rgba(0,0,0,.1);border:1px solid rgba(255,255,255,.1)}
.friend-link-card:hover{transform:translateY(-3px);box-shadow:0 8px 15px rgba(0,0,0,.15);background:rgba(255,255,255,.15)}
.light-theme .friend-link-card{color:#333;background:rgba(255,255,255,.8);border-color:rgba(0,0,0,.1)}
.light-theme .friend-link-card:hover{background:rgba(255,255,255,.95)}
.main-content{content-visibility:auto;contain-intrinsic-size:0 500px}
.lazy-section{content-visibility:auto;contain-intrinsic-size:0 300px}
.slide-fade-up{opacity:0;transform:translateY(30px);transition:all .5s cubic-bezier(.4,0,.2,1)}
.slide-fade-up.active{opacity:1;transform:translateY(0)}
.slide-fade-up:nth-child(2){transition-delay:.2s}
.slide-fade-up:nth-child(3){transition-delay:.4s}
.slide-fade-up:nth-child(4){transition-delay:.6s}
@media(max-width:900px){.feature-cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{padding:15px}.download-buttons{flex-direction:column;padding:0;gap:15px;width:90%;max-width:280px;margin:25px auto}.download-button{width:100%;min-width:unset;padding:14px 20px;font-size:1.1em}.features{padding:0 15px;margin-top:40px}.feature-cards{grid-template-columns:repeat(2,1fr);gap:15px}.feature-card{padding:18px}.download-stats{gap:20px;padding:18px;margin:25px auto}.stat-number{font-size:1.5em}.screenshot-carousel{padding:0 15px;margin:30px auto}.carousel-container{padding:15px}.carousel-button{width:35px;height:35px}.contact-section{padding:40px 15px}.contact-items{grid-template-columns:1fr}.partner-cards{grid-template-columns:1fr;gap:15px;padding:0 15px;max-width:280px}.theme-toggle{top:10px;right:10px;padding:10px}.back-to-top{bottom:20px;right:20px;width:40px;height:40px}}
@media(max-width:600px){.feature-cards{grid-template-columns:1fr;max-width:400px}.download-buttons{width:85%;max-width:260px}}
@media(max-width:320px){.logo{width:80px;height:80px}h1{font-size:1.6em}.container{padding:10px}.download-buttons{width:80%;max-width:240px}.download-button{padding:12px 15px;font-size:1em}.features{padding:0 10px}.feature-card{padding:14px}.download-stats{gap:12px;padding:12px}.stat-number{font-size:1.2em}.stat-label{font-size:.8em}}
@media(hover:none){.feature-card{transition:transform .2s ease}.feature-card:active{transform:scale(.98);background:rgba(255,255,255,.15)}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}