/* 基础重置 */
*{box-sizing:border-box;margin:0;padding:0}
body{font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;color:#1b1b1b;background:#f6f8fb;line-height:1.6}
.container{max-width:1100px;margin:0 auto;padding:40px 20px}

/* Hero */
.hero{background:linear-gradient(120deg,#0f9d58 0%,#2b8cff 100%);color:#fff;padding:80px 20px;text-align:center}
.hero-inner{max-width:900px;margin:0 auto}
.hero h1{font-size:44px;letter-spacing:1px;margin-bottom:12px}
.tagline{font-size:18px;opacity:0.95;margin-bottom:20px}
.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 20px;border-radius:8px;text-decoration:none;font-weight:600}
/* 主要按钮：在非 hero 区域使用绿色风格 */
.btn.info{background:#e8f7ea;color:#0b7936;border:1px solid #cfeed8}
.btn.download{background:#0b7936;color:#fff}
/* hero 中的 info 按钮仍保持白色半透明以便和深色背景对比 */
.hero .btn.info{background:rgba(255,255,255,0.15);color:#fff;border:1px solid rgba(255,255,255,0.15)}

/* 小 Logo */
.logo{display:inline-flex;align-items:center;justify-content:center;width:64px;height:64px;border-radius:12px;background:rgba(255,255,255,0.08);margin:0 auto 12px}


/* Features */
.features{padding:48px 0}
.features h2{font-size:28px;margin-bottom:18px;text-align:center}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.grid article{background:#fff;border-radius:10px;padding:20px;box-shadow:0 6px 20px rgba(17,24,39,0.06)}
.grid h3{margin-bottom:8px;color:#0b66d0}

/* Highlight */
.highlight{display:grid;grid-template-columns:1fr 360px;gap:24px;align-items:center;padding:36px;border-radius:12px;background:#ffffff;box-shadow:0 8px 20px rgba(17,24,39,0.04)}
.highlight h2{font-size:24px;margin-bottom:10px}
.highlight > div:first-child{min-width:0}
.highlight p{word-break:break-word}
.mockup{width:100%;max-width:360px;aspect-ratio:1/2;position:relative;overflow:hidden;justify-self:center}
.mockup .slide{position:absolute;inset:0;opacity:0;transition:opacity .6s ease}
.mockup .slide.active{opacity:1}
.mockup img{width:100%;height:100%;object-fit:cover;border-radius:12px;box-shadow:0 10px 30px rgba(2,6,23,0.15);display:block}

/* mockup 手动控制按钮 */
.mockup .control{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,0.9);border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 6px 18px rgba(2,6,23,0.08);z-index:10}
.mockup .control:hover{transform:translateY(-50%) scale(1.03)}
.mockup .control:active{transform:translateY(-50%) scale(0.98)}
.mockup .control.prev{left:12px}
.mockup .control.next{right:12px}
.mockup .control svg{width:18px;height:18px;fill:#0b7936}
/* remove fixed image dimensions to allow responsiveness */

/* mockup 中图片居中显示的 alt 覆盖文本 */
.mockup .alt-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none;z-index:8}
.mockup .alt-overlay .label{background:rgba(0,0,0,0.45);color:#fff;padding:10px 14px;border-radius:10px;font-weight:600;text-align:center;max-width:80%;font-size:16px;box-shadow:0 6px 18px rgba(2,6,23,0.2)}

/* 二维码下载卡片 */
.qr-download{padding:12px 0}
.qr-card{display:flex;align-items:center;gap:18px;background:#fff;border-radius:10px;padding:18px;box-shadow:0 6px 18px rgba(17,24,39,0.06)}
.qr-card img{width:160px;height:160px;border-radius:8px;object-fit:cover}
.qr-info h3{margin:0 0 6px 0;color:#0b7936}
.qr-info p{margin:0 0 10px;color:#566676}


/* Details & Footer */
.details{padding:24px 0}
.details h2{font-size:22px;margin-bottom:12px}
.details ul{list-style:disc;margin-left:20px}
.footer-cta{background:linear-gradient(90deg,#ffffff 0,#f8fbff);padding:28px;border-radius:10px;text-align:center;margin:36px 0}
.site-footer{padding:20px;text-align:center;color:#667085;font-size:14px}

/* 响应 */
@media (max-width:900px){
  .highlight{grid-template-columns:1fr}
  .hero h1{font-size:36px}
  .qr-card{flex-direction:column;align-items:center}
}