*{margin:0;padding:0;box-sizing:border-box;font-family:"Microsoft Yahei",-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,sans-serif}
body,html{height:100%;overflow:hidden;background:#fff}
body{display:flex;flex-direction:column}
.header{flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:16px 40px;background:#fff;box-shadow:0 4px 20px rgba(0,0,0,.02);border-bottom:1px solid rgba(0,0,0,.04);z-index:20;backdrop-filter:blur(4px);background:rgba(255,255,255,.96)}
.logo{display:flex;align-items:center;gap:10px;font-size:28px;font-weight:700;color:#1e1e2a;letter-spacing:1px}
.logo svg{width:42px;height:42px;filter:drop-shadow(0 4px 6px rgba(255, 122, 69, .2))}
.nav{display:flex;gap:44px;align-items:center}
.nav a{text-decoration:none;color:#4a4a5a;font-size:17px;font-weight:500;transition:color .2s;position:relative}
.nav a.active{color:#ff6b3b;font-weight:600}
.nav a.active::after{content:'';position:absolute;bottom:-8px;left:0;width:100%;height:3px;background:#ff6b3b;border-radius:3px 3px 0 0}
.nav a:hover{color:#ff6b3b}
.header-right{min-width:80px}
.swiper-container{flex:1;width:100%;height:100%;background:#0b0b12}
.swiper{width:100%;height:100%}
.swiper-slide{display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;background-size:cover;background-position:center;background-repeat:no-repeat;position:relative}
.slide-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.25);z-index:2}
.slide-content{position:relative;z-index:5;max-width:900px;padding:0 24px;margin:0 auto;transform:translateY(-2%)}
.hero-number{font-size:clamp(48px, 12vw, 88px);font-weight:800;line-height:1.2;margin-bottom:20px;text-shadow:0 10px 30px rgba(0,0,0,.3);letter-spacing:2px;word-break:break-word}
.hero-slogan{font-size:clamp(20px, 5vw, 32px);font-weight:400;margin-bottom:48px;text-shadow:0 8px 20px rgba(0,0,0,.25);opacity:.95}
.feature-title{font-size:clamp(36px, 8vw, 64px);font-weight:700;margin-bottom:24px;text-shadow:0 8px 24px rgba(0,0,0,.2)}
.feature-desc{font-size:clamp(18px, 4vw, 26px);margin-bottom:48px;opacity:.9;font-weight:400;text-shadow:0 4px 12px rgba(0,0,0,.2)}
.download-buttons{display:flex;gap:24px;justify-content:center;flex-wrap:wrap}
.download-btn{display:inline-flex;align-items:center;gap:12px;padding:14px 36px;background:#fff;color:#1e1e2a;text-decoration:none;border-radius:60px;font-size:18px;font-weight:600;box-shadow:0 12px 28px rgba(0,0,0,.15);transition:all .3s cubic-bezier(.2, .9, .4, 1);border:1px solid rgba(255,255,255,.5);backdrop-filter:blur(4px);background:rgba(255,255,255,.96)}
.download-btn:hover{transform:translateY(-5px);box-shadow:0 24px 36px rgba(0,0,0,.2);background:#fff}
.download-btn svg{width:26px;height:26px}
.swiper-pagination-vertical.swiper-pagination-bullets{right:24px;left:auto;top:50%;transform:translateY(-50%)}
.swiper-pagination-bullet{width:10px;height:10px;background:rgba(255,255,255,.5);opacity:1;transition:all .2s;margin:12px 0!important;border-radius:20px}
.swiper-pagination-bullet-active{background:#fff;height:28px;width:10px;border-radius:20px;box-shadow:0 0 12px rgba(255,255,255,.5)}
@media (max-width:768px){.header{padding:12px 20px}
.logo{font-size:22px}
.logo svg{width:36px;height:36px}
.nav{gap:24px}
.nav a{font-size:15px}
.download-buttons{gap:16px}
.download-btn{padding:12px 24px;font-size:16px}
.swiper-pagination-vertical.swiper-pagination-bullets{right:12px}
}
@media (max-width:480px){.nav{gap:16px}
.hero-number{margin-bottom:16px}
.hero-slogan{margin-bottom:32px}
}
.slide-1{background-blend-mode:overlay}
.slide-2{background-color:#0189ff}
.slide-3{background-color:#05b312}
.swiper-slide::after{content:'';position:absolute;top:0;left:0;width:100%;height:100%;background-image:url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMDAiIGhlaWdodD0iMzAwIj48ZmlsdGVyIGlkPSJmIj48ZmVUdXJidWxlbmNlIHR5cGU9ImZyYWN0YWxOb2lzZSIgYmFzZUZyZXF1ZW5jeT0iLjc1IiBudW1PY3RhdmVzPSIzIiAvPjwvZmlsdGVyPjxyZWN0IHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiIGZpbHRlcj0idXJsKCNmKSIgb3BhY2l0eT0iMC4wNCIgLz48L3N2Zz4=');opacity:.2;pointer-events:none;z-index:1}
.brand-badge{display:inline-block;margin-top:24px;font-size:14px;opacity:.7;letter-spacing:2px}
.sound-icon{display:none}
.qrcode-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.7);display:flex;align-items:center;justify-content:center;z-index:9999;opacity:0;visibility:hidden;transition:all .3s}
.qrcode-modal.show{opacity:1;visibility:visible}
.qrcode-box{background:#fff;padding:30px;border-radius:12px;text-align:center;box-shadow:0 10px 30px rgba(0,0,0,.3)}
.qrcode-box img{width:220px;height:220px;display:block;margin-bottom:15px}
.qrcode-box p{font-size:16px;color:#333;margin:0}
.qrcode-close{margin-top:15px;padding:8px 20px;background:#333;color:#fff;border:none;border-radius:6px;cursor:pointer}
.download-modal,.qrcode-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.75);display:flex;align-items:center;justify-content:center;z-index:9999;opacity:0;visibility:hidden;transition:all .3s}
.download-modal.show,.qrcode-modal.show{opacity:1;visibility:visible}
.modal-box{background:#fff;padding:30px;border-radius:12px;text-align:center;max-width:300px}
.modal-box img{width:220px;height:220px;margin-bottom:15px}
.modal-box p{font-size:16px;color:#333;margin:0 0 10px 0}
.modal-box .down-btn{display:inline-block;padding:6px 25px;background:#007aff;color:#fff;border-radius:6px;text-decoration:none;margin-top:10px}
.modal-close{margin-top:15px;padding:8px 20px;background:#333;color:#fff;border:none;border-radius:6px;cursor:pointer}