*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans SC",sans-serif;color:#333;background:#fff;line-height:1.6}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:1100px;margin:0 auto;padding:0 20px}

.navbar{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,0.85);backdrop-filter:blur(12px);border-bottom:1px solid rgba(0,0,0,0.06)}
.nav-container{max-width:1100px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:60px}
.nav-logo{display:flex;align-items:center;gap:8px;font-size:22px;font-weight:700;background:linear-gradient(135deg,#FF6B6B,#FFA94D);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-icon{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,#FF6B6B,#FFA94D);padding:4px}
.nav-links{display:flex;gap:30px}
.nav-links a{font-size:15px;color:#555;transition:color .2s;position:relative}
.nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;width:0;height:2px;background:linear-gradient(135deg,#FF6B6B,#FFA94D);transition:width .3s;border-radius:2px}
.nav-links a:hover{color:#FF6B6B}
.nav-links a:hover::after{width:100%}

.hero{min-height:100vh;display:flex;align-items:center;position:relative;overflow:hidden;padding-top:60px}
.hero-bg{position:absolute;inset:0;background:linear-gradient(135deg,#FFF5F5,#FFF0F0 30%,#FFF8F0 60%,#F0FFF4);z-index:-1}
.hero-content{width:100%;max-width:1100px;margin:0 auto;padding:60px 20px;display:flex;align-items:center;justify-content:space-between;gap:60px}
.hero-text{flex:1}
.hero-text h1{font-size:56px;font-weight:800;background:linear-gradient(135deg,#FF6B6B,#FFA94D);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:8px}
.hero-text .subtitle{font-size:22px;color:#666;margin-bottom:16px}
.hero-text .desc{font-size:16px;color:#888;margin-bottom:32px;max-width:420px}
.btn-download{display:inline-block;padding:14px 40px;background:linear-gradient(135deg,#FF6B6B,#FFA94D);color:#fff;border-radius:50px;font-size:16px;font-weight:600;box-shadow:0 4px 20px rgba(255,107,107,.4);transition:transform .2s,box-shadow .2s}
.btn-download:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(255,107,107,.5)}

.hero-mockup{flex-shrink:0}
.mockup-phone{width:260px;height:500px;background:#1a1a2e;border-radius:36px;padding:12px;box-shadow:0 30px 60px rgba(0,0,0,.15);position:relative}
.mockup-screen{width:100%;height:100%;background:#f8f9fa;border-radius:28px;overflow:hidden}
.mockup-app{height:100%;display:flex;flex-direction:column}
.mockup-header{background:linear-gradient(135deg,#FF6B6B,#FFA94D);color:#fff;text-align:center;padding:20px 0 14px;font-size:16px;font-weight:600;display:flex;align-items:center;justify-content:center;gap:6px}
.mockup-icon{width:18px;height:18px;border-radius:5px;background:#fff;padding:2px}
.mockup-body{flex:1;padding:16px 12px;display:flex;flex-direction:column;gap:10px}
.mockup-card{background:#fff;border-radius:12px;padding:14px 16px;font-size:14px;box-shadow:0 2px 8px rgba(0,0,0,.06);animation:slideUp .5s ease both}
@keyframes slideUp{from{opacity:0;transform:translateY(20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}

.section{padding:100px 0}
.section-title{text-align:center;font-size:32px;font-weight:700;color:#222;margin-bottom:12px}
.section-subtitle{text-align:center;font-size:16px;color:#999;margin-bottom:60px}

.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:#fff;border-radius:16px;padding:36px 24px;text-align:center;box-shadow:0 2px 16px rgba(0,0,0,.06);transition:transform .3s,box-shadow .3s;border:1px solid #f0f0f0}
.feature-card:hover{transform:translateY(-6px);box-shadow:0 12px 32px rgba(0,0,0,.1)}
.feature-icon{width:60px;height:60px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:28px;margin:0 auto 20px}
.feature-card h3{font-size:18px;font-weight:600;margin-bottom:10px;color:#333}
.feature-card p{font-size:14px;color:#999;line-height:1.7}

.highlights{background:linear-gradient(135deg,#FFF5F5,#F0FFF4)}
.highlights-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.highlight-item{text-align:center;padding:40px 20px}
.highlight-icon{font-size:40px;margin-bottom:16px}
.highlight-item h3{font-size:18px;font-weight:600;margin-bottom:10px;color:#333}
.highlight-item p{font-size:14px;color:#888;line-height:1.7}

.download{background:linear-gradient(135deg,#FFF5F5,#FFF0F0)}
.download-cards{display:flex;justify-content:center}
.download-card{background:#fff;border-radius:20px;padding:48px 40px;text-align:center;box-shadow:0 8px 32px rgba(0,0,0,.08);max-width:360px;width:100%}
.dl-icon-img{width:72px;height:72px;border-radius:18px;margin-bottom:16px;box-shadow:0 4px 16px rgba(0,0,0,.1)}
.download-card h3{font-size:22px;font-weight:700;margin-bottom:8px}
.download-card>p{font-size:14px;color:#999;margin-bottom:20px}
.dl-info{display:flex;justify-content:center;gap:20px;margin-bottom:28px}
.dl-info span{font-size:13px;color:#aaa;background:#f5f5f5;padding:4px 14px;border-radius:20px}
.btn-download-card{display:block;padding:14px 0;background:linear-gradient(135deg,#FF6B6B,#FFA94D);color:#fff;border-radius:50px;font-size:16px;font-weight:600;box-shadow:0 4px 16px rgba(255,107,107,.3);transition:transform .2s}
.btn-download-card:hover{transform:translateY(-2px)}

.footer{background:#1a1a2e;color:#fff;padding:40px 0;text-align:center}
.footer-copyright{font-size:13px;color:rgba(255,255,255,.4)}

/* ====== 联系我们 ====== */
.contact{background:#f9f9fb}
.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:800px;margin:0 auto}
.contact-card{background:#fff;border-radius:16px;padding:36px 24px 28px;text-align:center;box-shadow:0 2px 16px rgba(0,0,0,.06);transition:transform .3s,box-shadow .3s;border:1px solid #f0f0f0;display:block;color:inherit;text-decoration:none}
.contact-card:hover{transform:translateY(-6px);box-shadow:0 12px 32px rgba(0,0,0,.1)}
.contact-icon{width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:26px;margin:0 auto 16px;color:#fff}
.contact-card h3{font-size:17px;font-weight:600;margin-bottom:6px;color:#333}
.contact-card p{font-size:13px;color:#999;line-height:1.6;margin-bottom:8px}
.contact-copy{display:inline-block;padding:4px 14px;border-radius:50px;background:linear-gradient(135deg,#12B7F5,#0d8bc9);color:#fff;font-size:12px;cursor:pointer;transition:opacity .2s}
.contact-copy:hover{opacity:.85}
.contact-copy.copied{background:linear-gradient(135deg,#4ECDC4,#44b09e)}

@media(max-width:700px){
.contact-grid{grid-template-columns:1fr;max-width:320px}
}

/* ====== 截图轮播 ====== */
.gallery-slider{max-width:400px;margin:0 auto;position:relative}
.slider-stage{position:relative;border-radius:20px;overflow:hidden;box-shadow:0 8px 40px rgba(0,0,0,.12);background:#f0f0f0;cursor:pointer;aspect-ratio:9/16}
.slider-stage img{width:100%;height:100%;object-fit:cover;display:block;transition:opacity .35s ease}
.slider-info{text-align:center;margin-top:16px;font-size:14px;color:#999}
.slider-nav{display:flex;justify-content:center;gap:40px;margin-top:20px}
.slider-btn{width:56px;height:56px;border-radius:50%;border:2px solid #eee;background:#fff;font-size:28px;cursor:pointer;transition:all .2s;color:#666;display:flex;align-items:center;justify-content:center;line-height:1}
.slider-btn:hover{border-color:#FFA94D;color:#FF6B6B;transform:scale(1.05)}
.slider-btn:active{transform:scale(.95)}

@media(max-width:900px){
.hero-content{flex-direction:column;text-align:center;padding-top:80px}
.hero-text .desc{margin:0 auto 32px}
.mockup-phone{width:220px;height:420px}
.hero-text h1{font-size:40px}
.features-grid{grid-template-columns:repeat(2,1fr)}
.highlights-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:600px){
.features-grid{grid-template-columns:1fr}
.highlights-grid{grid-template-columns:1fr}
.section-title{font-size:26px}
.section{padding:60px 0}
}