:root{
  --primary:#ff4d8d;
  --primary-dark:#e63b79;
  --primary-light:#ffe3ee;
  --dark:#2b2030;
  --text:#3d2f3a;
  --text-light:#7a6674;
  --bg:#fff6f9;
  --card:#ffffff;
  --border:#f5dfe9;
  --grad:linear-gradient(135deg,#ff4d8d,#ff8fb3);
  --shadow:0 10px 26px rgba(255,77,141,.14);
  --shadow-soft:0 4px 20px rgba(255,77,141,.06);
  --radius:16px;
  --block-gap:48px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{display:block;width:100%;height:auto;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;border:0;background:none;cursor:pointer;color:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
section[id]{scroll-margin-top:82px}
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}
.preview-card:hover,.feature-card:hover,.review-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}

/* 顶部导航 */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:8px;font-size:22px;font-weight:800;color:var(--dark)}
.logo::before{content:"女";display:flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:10px;background:var(--grad);color:#fff;font-size:15px;font-weight:700}
.menu{display:flex;align-items:center;gap:20px}
.nav-link{font-size:14px;color:var(--text-light);position:relative;padding:6px 0;transition:color .2s}
.nav-link:hover{color:var(--primary)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;background:var(--grad)}
.btn-download{font-size:13px;color:#fff;background:var(--grad);padding:7px 16px;border-radius:999px;font-weight:600;box-shadow:0 4px 12px rgba(255,77,141,.3);transition:transform .2s,box-shadow .2s}
.btn-download:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(255,77,141,.4)}

/* 首屏 */
.hero{position:relative;overflow:hidden;padding:150px 0 90px;background:radial-gradient(600px 400px at 85% 20%,rgba(255,77,141,.12),transparent 60%),radial-gradient(500px 380px at 8% 85%,rgba(255,143,179,.12),transparent 60%)}
.hero-inner{display:flex;align-items:center;gap:64px;animation:fadeUp .8s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
.hero-text{flex:1.15}
.hero h1{font-size:46px;font-weight:800;color:var(--dark);line-height:1.3;letter-spacing:1px}
.ver{display:inline-block;vertical-align:middle;font-size:16px;font-weight:700;color:#fff;background:var(--grad);padding:3px 12px;border-radius:999px;margin-left:10px}
.hero-desc{margin:20px 0 34px;font-size:16px;color:var(--text-light);max-width:560px}
.hero-btns{display:flex;gap:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;text-align:center;padding:14px 30px;border-radius:999px;font-size:16px;font-weight:700;transition:transform .2s,box-shadow .2s}
.btn-primary{color:#fff;background:var(--grad);box-shadow:0 8px 20px rgba(255,77,141,.3)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(255,77,141,.4)}
.btn-ghost{color:var(--primary);background:#fff;border:2px solid var(--primary)}
.btn-ghost:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.hero-img{flex:.85;display:flex;justify-content:center}
.hero-img img{width:100%;max-width:340px;border-radius:24px;border:6px solid #fff;box-shadow:0 20px 50px rgba(255,77,141,.25)}

/* 通用区块 */
.section{padding:88px 0}
.sec-title{position:relative;font-size:32px;font-weight:800;color:var(--dark);text-align:center;padding-bottom:16px}
.sec-title::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:56px;height:4px;border-radius:2px;background:var(--grad)}
.sec-sub{margin-top:12px;text-align:center;color:var(--text-light);font-size:15px}
.sec-title.light{color:#fff}
.sec-sub.light{color:rgba(255,255,255,.72)}

/* 作品预览 */
.preview-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:var(--block-gap)}
.preview-card{border-radius:var(--radius);overflow:hidden;background:var(--card);border:1px solid var(--border);transition:transform .25s,box-shadow .25s}

/* 产品介绍 */
.intro-card{max-width:860px;margin:var(--block-gap) auto 0;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:44px 48px;box-shadow:var(--shadow-soft)}
.intro-card p{font-size:16px;color:var(--text);margin-bottom:18px}
.intro-card p:last-of-type{margin-bottom:0}
.intro-tags{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.intro-tags span{background:var(--primary-light);color:var(--primary-dark);font-size:13px;font-weight:600;padding:6px 16px;border-radius:999px}

/* 核心功能 */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:var(--block-gap)}
.feature-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:34px 28px;transition:transform .25s,box-shadow .25s}
.feature-icon{display:flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:16px;background:var(--primary-light);margin-bottom:18px}
.feature-icon svg{width:26px;height:26px;fill:none;stroke:var(--primary-dark);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.feature-card h3{font-size:18px;color:var(--dark);margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-light)}

/* 优势对比 */
.compare-wrap{margin-top:var(--block-gap);display:flex;justify-content:center}
.compare-table{width:100%;max-width:860px;border-collapse:collapse;background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-soft)}
.compare-table th,.compare-table td{border:1px solid var(--border);padding:14px 18px;text-align:center;font-size:14px}
.compare-table thead th{background:var(--dark);color:#fff;font-size:15px;font-weight:600}
.compare-table td:first-child{background:#fdf7fa;color:var(--text);font-weight:600;text-align:left;white-space:nowrap}
.compare-table .col-better{color:var(--primary-dark);font-weight:700;background:var(--primary-light)}
.compare-table thead .col-better{background:var(--grad);color:#fff}

/* 平台数据 */
.stats{background:linear-gradient(135deg,var(--dark),#4a2450)}
.stats-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:28px;margin-top:52px}
.stat{text-align:center}
.stat .num{font-size:38px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.stat .label{margin-top:8px;color:rgba(255,255,255,.75);font-size:14px}

/* 用户评价 */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:var(--block-gap)}
.review-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px;transition:transform .25s,box-shadow .25s}
.review-head{display:flex;align-items:center;gap:12px}
.review-avatar{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;background:var(--grad);color:#fff;font-size:18px;font-weight:700;flex-shrink:0}
.review-name{font-size:15px;font-weight:700;color:var(--dark)}
.review-stars{font-size:13px;color:#ffb400;letter-spacing:2px}
.review-text{margin-top:14px;font-size:14px;color:var(--text-light);line-height:1.8}

/* 版本更新 */
.update-card{max-width:760px;margin:var(--block-gap) auto 0;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:40px 44px;box-shadow:var(--shadow-soft)}
.update-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.ver-pill{background:var(--grad);color:#fff;font-weight:800;font-size:18px;padding:4px 16px;border-radius:999px}
.update-date{color:var(--text-light);font-size:14px}
.update-list{list-style:none;margin-top:24px}
.update-list li{position:relative;padding:10px 0 10px 26px;font-size:15px;color:var(--text);border-bottom:1px dashed var(--border)}
.update-list li:last-child{border-bottom:0}
.update-list li::before{content:"";position:absolute;left:4px;top:19px;width:8px;height:8px;border-radius:50%;background:var(--grad)}

/* FAQ */
.faq-list{max-width:760px;margin:var(--block-gap) auto 0}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:14px;margin-bottom:14px;overflow:hidden;transition:box-shadow .25s,border-color .25s}
.faq-item.active{border-color:var(--primary);box-shadow:var(--shadow)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 22px;font-size:15px;font-weight:600;color:var(--dark);text-align:left}
.faq-icon{position:relative;width:18px;height:18px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .25s}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.active .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.active .faq-a{max-height:240px}
.faq-a-inner{padding:0 22px 20px;font-size:14px;color:var(--text-light);line-height:1.8}

/* 下载区 */
.download{background:radial-gradient(500px 320px at 20% 10%,rgba(255,77,141,.14),transparent 60%),radial-gradient(480px 320px at 85% 90%,rgba(255,143,179,.14),transparent 60%)}
.download-inner{max-width:760px;margin:0 auto;text-align:center;background:var(--card);border:1px solid var(--border);border-radius:24px;padding:60px 48px;box-shadow:0 10px 40px rgba(255,77,141,.1)}
.download h1{font-size:38px;font-weight:800;color:var(--dark)}
.download-meta{margin:16px 0 34px;font-size:14px;color:var(--text-light)}
.download-btns{display:flex;gap:16px;justify-content:center}
.download-btns .btn{flex:1;max-width:320px}
.download-tip{margin-top:26px;font-size:14px;color:var(--primary-dark);background:var(--primary-light);display:inline-block;padding:8px 20px;border-radius:999px}

/* 页脚 */
.footer{background:var(--dark);color:rgba(255,255,255,.7);text-align:center;padding:36px 0;font-size:14px}
.footer-link{color:#ffb3cc;font-weight:600}
.footer-link:hover{color:#fff}
.footer-slogan{margin-top:6px;font-size:12px;color:rgba(255,255,255,.45)}

/* 返回顶部 */
.back-top{position:fixed;right:28px;bottom:28px;z-index:99;width:46px;height:46px;border-radius:50%;background:var(--grad);color:#fff;font-size:20px;line-height:1;box-shadow:0 6px 18px rgba(255,77,141,.4);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .3s,transform .3s,visibility .3s}
.back-top.show{opacity:1;visibility:visible;transform:none}
.back-top:hover{transform:translateY(-3px)}

/* 平板 */
@media (max-width:1024px){
  .menu{gap:14px}
  .nav-link{font-size:13px}
  .hero{padding:130px 0 70px}
  .hero h1{font-size:38px}
  .preview-grid{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(3,1fr);gap:36px 28px}
  .review-grid{grid-template-columns:repeat(2,1fr)}
}

/* 手机 */
@media (max-width:767px){
  .container{padding:0 20px}
  .menu{display:none}
  .nav-inner{height:56px}
  .logo{font-size:19px}
  .btn-download{font-size:12px;padding:6px 13px}
  .hero{padding:110px 0 56px}
  .hero-inner{flex-direction:column;gap:36px}
  .hero-text{text-align:center}
  .hero h1{font-size:30px}
  .ver{font-size:13px;margin-left:6px}
  .hero-desc{margin:16px auto 26px;font-size:15px;text-align:left}
  .hero-btns{flex-direction:column}
  .btn{width:100%}
  .hero-img img{max-width:250px}
  .section{padding:60px 0}
  .sec-title{font-size:26px}
  .preview-grid{grid-template-columns:1fr}
  .feature-grid{grid-template-columns:1fr}
  .feature-card{padding:26px 22px}
  .compare-table th,.compare-table td{padding:10px 8px;font-size:12px}
  .compare-table thead th{font-size:13px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px 20px}
  .stat .num{font-size:30px}
  .review-grid{grid-template-columns:1fr}
  .update-card{padding:28px 22px}
  .update-list li{font-size:14px}
  .faq-q{padding:15px 16px;font-size:14px}
  .download-inner{padding:44px 20px}
  .download h1{font-size:28px}
  .download-meta{font-size:12px;white-space:nowrap}
  .download-btns{flex-direction:column}
  .download-btns .btn{max-width:none}
  .back-top{right:16px;bottom:16px;width:42px;height:42px}
}