/* copyapps.cn - 现代渐变玻璃卡片风 */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --grad:linear-gradient(135deg,#667eea 0%,#764ba2 100%);
  --bg:#f0f4ff;--white:#fff;--text:#1e293b;--muted:#64748b;
  --primary:#667eea;--secondary:#764ba2;--glass:rgba(255,255,255,.75);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  --radius:20px;--shadow:0 8px 32px rgba(102,126,234,.15);
}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;min-height:100vh}
a{color:var(--primary);text-decoration:none}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}

/* 顶部导航 */
.topbar{background:var(--glass);backdrop-filter:blur(16px);border-bottom:1px solid rgba(102,126,234,.1);position:sticky;top:0;z-index:100;padding:14px 0}
.topbar-inner{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:1.15rem;color:var(--text)}
.brand img{width:42px;height:42px;border-radius:12px}
.menu{display:flex;gap:24px;flex-wrap:wrap}
.menu a{color:var(--muted);font-size:.9rem;font-weight:500;transition:color .2s}
.menu a:hover{color:var(--primary)}

/* 主视觉 - 左右分栏 */
.banner{padding:56px 0 64px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.banner-text h1{font-size:clamp(1.8rem,4.5vw,2.8rem);font-weight:800;line-height:1.25;margin-bottom:16px}
.banner-text h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.banner-text p{color:var(--muted);font-size:1.05rem;margin-bottom:28px}
.dl-row{display:flex;gap:14px;flex-wrap:wrap}
.dl-btn{display:inline-flex;align-items:center;gap:8px;padding:15px 32px;border-radius:50px;font-weight:700;font-size:1rem;border:none;cursor:pointer;transition:transform .2s,box-shadow .2s;color:#fff}
.dl-btn:active{transform:scale(.96)}
.dl-android{background:var(--grad);box-shadow:0 6px 24px rgba(102,126,234,.35)}
.dl-ios{background:linear-gradient(135deg,#1e293b,#475569);box-shadow:0 6px 24px rgba(30,41,59,.25)}
.dl-sm{padding:11px 22px;font-size:.88rem}
.banner-visual{display:flex;gap:16px;justify-content:center;align-items:flex-end}
.banner-visual img{border-radius:var(--radius);box-shadow:var(--shadow);max-width:160px}

/* 玻璃卡片区块 */
.section{padding:64px 0}
.section-head{text-align:center;margin-bottom:40px}
.section-head h2{font-size:1.6rem;font-weight:800;margin-bottom:8px}
.section-head p{color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px}
.card{background:var(--glass);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.8);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:transform .25s}
.card:hover{transform:translateY(-6px)}
.card-icon{font-size:2rem;margin-bottom:12px}
.card h3{font-size:1.05rem;margin-bottom:8px;font-weight:700}
.card p{color:var(--muted);font-size:.9rem}

/* 截图横滑 */
.gallery{background:var(--white);padding:64px 0}
.gallery-row{display:flex;gap:20px;overflow-x:auto;padding:8px 0 16px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.gallery-row img{flex-shrink:0;border-radius:var(--radius);max-width:200px;scroll-snap-align:center;box-shadow:var(--shadow)}

/* 内页 */
.inner-banner{background:var(--grad);color:#fff;padding:48px 0;text-align:center}
.inner-banner h1{font-size:clamp(1.5rem,4vw,2.2rem);margin-bottom:8px}
.inner-banner p{opacity:.85;font-size:1rem}
.article{padding:48px 0;max-width:780px;margin:0 auto}
.article h2{font-size:1.2rem;margin:24px 0 10px;color:var(--secondary);font-weight:700}
.article p,.article li{color:var(--muted);margin-bottom:12px;font-size:.95rem}
.article ul,.article ol{padding-left:22px;margin-bottom:16px}

/* 底部 */
.site-foot{background:#1e293b;color:#94a3b8;padding:40px 0 110px;text-align:center}
.warn-box{background:rgba(239,68,68,.15);border:2px solid #ef4444;border-radius:12px;padding:16px 20px;margin-bottom:28px;color:#fca5a5;font-weight:600;font-size:.88rem;line-height:1.7}
.foot-nav{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;margin-bottom:20px}
.foot-nav a{color:#94a3b8;font-size:.85rem}
.foot-nav a:hover{color:#fff}
.stats-line{font-size:.85rem;margin-bottom:10px}
.stats-line strong{color:#a78bfa}
.copy{font-size:.78rem;color:#475569}

/* 悬浮栏 - 胶囊形 */
.sticky-dl{position:fixed;bottom:16px;left:50%;transform:translateX(-50%) translateY(120px);background:var(--white);border-radius:50px;padding:8px 12px;display:flex;align-items:center;gap:8px;z-index:999;box-shadow:0 8px 40px rgba(0,0,0,.18);transition:transform .35s cubic-bezier(.4,0,.2,1);white-space:nowrap}
.sticky-dl.show{transform:translateX(-50%) translateY(0)}
.sticky-dl span{font-size:.82rem;color:var(--muted);padding-left:8px;display:none}

@media(min-width:520px){.sticky-dl span{display:inline}}

@media(max-width:768px){
  .banner{grid-template-columns:1fr;text-align:center;padding:36px 0 48px}
  .banner-visual{order:-1}
  .banner-visual img{max-width:130px}
  .dl-row{justify-content:center}
  .menu{gap:14px}
  .menu a{font-size:.82rem}
}

/* 首页扩展 */
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}
.hero-badges span{background:rgba(102,126,234,.12);color:var(--primary);padding:5px 14px;border-radius:50px;font-size:.82rem;font-weight:600}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:48px}
.stat-box{background:var(--white);border-radius:var(--radius);padding:24px 16px;text-align:center;box-shadow:var(--shadow)}
.stat-box strong{display:block;font-size:1.5rem;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:900}
.stat-box span{font-size:.8rem;color:var(--muted)}
.about-block{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:start}
.about-block p{color:var(--muted);font-size:.93rem;margin-bottom:14px;line-height:1.85}
.about-block ul{color:var(--muted);font-size:.9rem;padding-left:20px;margin-bottom:16px}
.about-block li{margin-bottom:8px}
.info-panel{background:var(--white);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.info-panel h3{font-size:1rem;margin-bottom:16px;font-weight:700}
.info-row{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid #eef2ff;font-size:.88rem}
.info-row:last-child{border-bottom:none}
.info-row span{color:var(--muted)}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag-list a{background:var(--bg);color:var(--primary);padding:6px 16px;border-radius:50px;font-size:.82rem;font-weight:500}
.review-section{background:var(--white);padding:64px 0}
.review-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.review-item{background:var(--bg);border-radius:var(--radius);padding:24px}
.review-item .rating{color:#f59e0b;margin-bottom:10px;font-size:.85rem}
.review-item blockquote{color:var(--muted);font-size:.9rem;line-height:1.75;margin-bottom:12px}
.review-item cite{font-size:.8rem;color:var(--primary);font-style:normal;font-weight:600}
.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-top:8px}
.step-card{text-align:center;padding:28px 20px;background:var(--glass);border-radius:var(--radius);border:1px solid rgba(255,255,255,.8)}
.step-num{width:40px;height:40px;background:var(--grad);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;margin:0 auto 14px}
.step-card h4{font-size:.95rem;margin-bottom:8px}
.step-card p{color:var(--muted);font-size:.85rem}
.cta-banner{background:var(--grad);color:#fff;border-radius:var(--radius);padding:48px 32px;text-align:center;margin-top:48px}
.cta-banner h2{font-size:1.4rem;margin-bottom:10px}
.cta-banner p{opacity:.9;margin-bottom:24px;font-size:.95rem}
.cta-banner .dl-btn{background:#fff;color:var(--primary)}
.cta-banner .dl-ios{background:rgba(255,255,255,.15);color:#fff;border:1px solid rgba(255,255,255,.4)}

@media(max-width:768px){
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .about-block{grid-template-columns:1fr}
}

/* 移动端右上角菜单 */
.topbar-inner{position:relative}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;padding:10px;border:none;border-radius:12px;background:var(--grad);cursor:pointer;z-index:120;box-shadow:0 4px 16px rgba(102,126,234,.35)}
.nav-toggle span{display:block;height:2px;width:100%;background:#fff;border-radius:1px;transition:transform .25s,opacity .2s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mask{display:none;position:fixed;inset:0;background:rgba(30,41,59,.35);z-index:90;backdrop-filter:blur(2px)}
.nav-mask.on{display:block}
@media(max-width:768px){
  .nav-toggle{display:flex}
  .menu{display:none;position:fixed;top:64px;right:12px;left:auto;min-width:200px;flex-direction:column;gap:0;background:var(--white);border-radius:16px;padding:10px;box-shadow:0 16px 48px rgba(102,126,234,.25);z-index:110;border:1px solid rgba(102,126,234,.12)}
  .menu.is-open{display:flex}
  .menu a{display:block;padding:12px 16px;border-radius:12px;font-size:.95rem;color:var(--text)}
  .menu a:active,.menu a:hover{background:var(--bg);color:var(--primary)}
}