/* lovemo 下载站 · Lovemoaiapp.cn · 动画Hero版 */
:root{
  --bg:#fff0f6;
  --paper:#ffffff;
  --ink:#3d2b36;
  --muted:#9a7d8c;
  --pink:#ff6fa5;
  --purple:#b088ff;
  --line:#ffd6e6;
  --radius:20px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);font-size:15px;line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:720px;margin:0 auto;padding:0 20px}

/* ===== 顶部导航 ===== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,240,246,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:58px}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:18px;color:var(--pink)}
.nav-links{display:none;gap:18px;font-size:14px}
.nav-links a{color:var(--ink)}
.nav-links a:hover{color:var(--pink)}
@media (min-width:769px){.nav-links{display:flex}}
.logo-dot{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--pink),var(--purple));display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;animation:logoPulse 2.5s ease-in-out infinite}
@keyframes logoPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.1)}}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 26px;border-radius:999px;font-size:15px;font-weight:700;cursor:pointer;border:0;transition:transform .15s}
.btn:active{transform:scale(.97)}
.btn-primary{background:linear-gradient(135deg,var(--pink),var(--purple));color:#fff;box-shadow:0 8px 22px rgba(255,111,165,.35);animation:ctaPulse 2.2s ease-in-out infinite}
@keyframes ctaPulse{0%,100%{box-shadow:0 8px 22px rgba(255,111,165,.35)}50%{box-shadow:0 8px 30px rgba(176,136,255,.55)}}

/* ===== HERO 动画 ===== */
.hero{position:relative;overflow:hidden;padding:50px 0 30px;text-align:center}
/* 渐变流动背景 */
.hero::before{content:"";position:absolute;inset:-40%;background:linear-gradient(120deg,#ffe3ee,#f3e8ff,#ffe3ee,#e8f4ff);background-size:300% 300%;animation:bgFlow 12s ease-in-out infinite;z-index:-1}
@keyframes bgFlow{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
/* 漂浮爱心 */
.heart{position:absolute;font-size:20px;opacity:0;animation:floatUp linear infinite;z-index:0;pointer-events:none}
@keyframes floatUp{0%{transform:translateY(20px) scale(.6);opacity:0}15%{opacity:.7}100%{transform:translateY(-320px) scale(1.1) rotate(20deg);opacity:0}}
.hero-badge{display:inline-block;padding:6px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:12px;color:var(--pink);margin-bottom:16px;box-shadow:0 4px 14px rgba(255,111,165,.12);animation:fadeUp .8s ease both}
.hero h1{font-size:28px;line-height:1.35;margin-bottom:10px;animation:fadeUp .8s .1s ease both}
.hero h1 .hl{background:linear-gradient(135deg,var(--pink),var(--purple));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{color:var(--muted);font-size:15px;max-width:500px;margin:0 auto 22px;animation:fadeUp .8s .25s ease both}
.hero .cta-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;animation:fadeUp .8s .4s ease both}
.btn-ghost{background:#fff;color:var(--pink);border:1px solid var(--pink)}
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}

/* 手机样机浮动 */
.hero-phone{margin:30px auto 0;width:210px;aspect-ratio:9/18.5;border-radius:32px;overflow:hidden;animation:phoneFloat 4s ease-in-out infinite;position:relative;z-index:1;box-shadow:0 20px 50px rgba(255,111,165,.25)}
.hero-phone img{width:100%;height:100%;object-fit:cover;object-position:top;border:0}
@keyframes phoneFloat{0%,100%{transform:translateY(0) rotate(-1deg)}50%{transform:translateY(-14px) rotate(1deg)}}

/* 数据条 */
.stats{display:flex;justify-content:center;gap:24px;margin-top:26px;flex-wrap:wrap;animation:fadeUp .8s .55s ease both}
.stat{text-align:center}
.stat .num{font-size:22px;font-weight:800;color:var(--pink)}
.stat .lbl{font-size:12px;color:var(--muted)}

/* ===== 通用 section ===== */
section{padding:36px 0}
.sec-head{text-align:center;margin-bottom:20px}
.sec-head h2{font-size:22px}
.sec-head p{color:var(--muted);font-size:14px}

/* 正文段落 */
.prose p{margin-bottom:14px;font-size:15px}
.prose a{color:var(--pink);text-decoration:underline}

/* 步骤 */
.steps{list-style:none;max-width:560px;margin:0 auto}
.steps li{display:flex;gap:16px;padding:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;align-items:flex-start}
.step-num{flex:0 0 44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--pink),var(--purple));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px}
.steps h3{font-size:16px;margin-bottom:4px}
.steps p{font-size:13px;color:var(--muted)}

/* 特性卡片 */
.feat-grid{display:grid;grid-template-columns:1fr;gap:14px}
.feat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;transition:transform .25s,box-shadow .25s}
.feat-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(255,111,165,.15)}
.feat-card .ic{font-size:28px;margin-bottom:8px}
.feat-card h3{font-size:16px;margin-bottom:4px}
.feat-card p{font-size:13px;color:var(--muted)}

/* 截图 */
.shots{display:grid;grid-template-columns:1fr;gap:16px;margin-top:10px}
.shots img{border-radius:var(--radius);border:1px solid var(--line)}

/* FAQ */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:16px;margin-bottom:10px;overflow:hidden}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:10px;padding:15px 18px;background:transparent;border:0;font-size:15px;font-weight:600;text-align:left;cursor:pointer;min-height:46px;color:var(--ink)}
.faq-q .arrow{transition:transform .2s;color:var(--pink)}
.faq-item.open .faq-q .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a p{padding:0 18px 14px;color:var(--muted);font-size:14px}

/* 下载区 */
.dl{text-align:center;padding:40px 24px;background:linear-gradient(135deg,#fff0f6,#f3e8ff);border-radius:24px;border:1px solid var(--line)}
.dl h2{font-size:22px;margin-bottom:8px}
.dl p{color:var(--muted);margin-bottom:20px;font-size:14px}

/* 滚动淡入 */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:translateY(0)}

footer{padding:26px 0;text-align:center;color:var(--muted);font-size:13px;border-top:1px solid var(--line)}
#toTop{position:fixed;right:16px;bottom:24px;width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--pink),var(--purple));color:#fff;border:0;font-size:18px;cursor:pointer;display:none;z-index:60}
#toTop.show{display:flex;align-items:center;justify-content:center}

@media (min-width:769px){
  .hero h1{font-size:38px}
  .feat-grid{grid-template-columns:1fr 1fr}
  .shots{grid-template-columns:1fr 1fr}
}