:root{
  --primary:#FF5C8D;
  --grad:linear-gradient(135deg,#FF5C8D,#FF93B2);
  --deep:#2E2333;
  --text:#5B4A60;
  --muted:#8B7A90;
  --bg:#FFF9FC;
  --card:#FFFFFF;
  --border:#F6E4EE;
  --soft:#FFF0F6;
  --shadow:0 12px 30px rgba(255,92,141,.14);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.75;font-size:15px}
a{text-decoration:none;color:inherit}
img{display:block;width:100%;height:auto}
button{font-family:inherit}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
[id]{scroll-margin-top:80px}

.header{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);transition:box-shadow .3s}
.header.scrolled{box-shadow:0 4px 20px rgba(46,35,51,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-size:22px;font-weight:800;color:var(--deep);letter-spacing:1px;white-space:nowrap}
.logo span{color:var(--primary)}
.nav{display:flex;gap:20px}
.nav a{font-size:15px;color:var(--text);white-space:nowrap;transition:color .3s}
.nav a:hover{color:var(--primary)}
.header-btn{padding:8px 18px;border-radius:999px;background:var(--grad);color:#fff;font-size:14px;font-weight:600;white-space:nowrap;box-shadow:0 4px 12px rgba(255,92,141,.3);transition:transform .3s,box-shadow .3s}
.header-btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(255,92,141,.4)}

.hero{padding:132px 0 88px;background:linear-gradient(180deg,#FFF0F6,var(--bg))}
.hero-inner{display:flex;align-items:center;gap:64px}
.hero-text{flex:1}
.hero h1{font-size:44px;font-weight:800;color:var(--deep);line-height:1.3;letter-spacing:1px}
.hero h1 .v{color:var(--primary)}
.hero-desc{margin:20px 0 32px;font-size:16px;max-width:560px}
.hero-btns{display:flex;gap:16px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:14px 30px;border-radius:999px;font-size:16px;font-weight:600;white-space:nowrap;transition:transform .3s,box-shadow .3s}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 6px 18px rgba(255,92,141,.35)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(255,92,141,.45)}
.btn-line{border:2px solid var(--primary);color:var(--primary);background:#fff}
.btn-line:hover{transform:translateY(-3px);background:var(--soft)}
.hero-pic{flex:0 0 340px}
.hero-pic img{border-radius:20px;box-shadow:var(--shadow)}

.section{padding:84px 0}
.section-head{text-align:center;margin-bottom:48px}
.section-head h2{font-size:32px;font-weight:800;color:var(--deep)}
.section-head h2::after{content:"";display:block;width:48px;height:4px;border-radius:2px;background:var(--grad);margin:14px auto 0}
.section-head p{margin-top:12px;color:var(--muted)}

.works-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.works-item,.feature-card,.data-card,.review-card{background:var(--card);border:1px solid var(--border);border-radius:16px;transition:transform .3s,box-shadow .3s}
.works-item:hover,.feature-card:hover,.data-card:hover,.review-card:hover{transform:translateY(-6px);box-shadow:0 14px 30px rgba(255,92,141,.16)}
.works-item{overflow:hidden}

.intro-box{max-width:860px;margin:0 auto;background:var(--card);border:1px solid var(--border);border-radius:20px;padding:40px 44px;box-shadow:0 4px 14px rgba(46,35,51,.05)}
.intro-box p{margin-bottom:16px}
.intro-box p:last-child{margin-bottom:0}

.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{padding:30px 26px}
.feature-icon{width:52px;height:52px;display:flex;align-items:center;justify-content:center;border-radius:14px;background:var(--soft);color:var(--primary);margin-bottom:18px}
.feature-icon svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.feature-card h3{font-size:18px;font-weight:700;color:var(--deep);margin-bottom:8px}
.feature-card p{font-size:14px;color:var(--muted)}

.compare-wrap{max-width:860px;margin:0 auto;overflow:hidden;border:1px solid var(--border);border-radius:16px;background:var(--card)}
.compare-table{width:100%;border-collapse:collapse;table-layout:fixed}
.compare-table th,.compare-table td{padding:16px 18px;text-align:center;font-size:14px;border-bottom:1px solid var(--border)}
.compare-table tr:last-child td{border-bottom:none}
.compare-table thead th{background:var(--soft);color:var(--deep);font-weight:700;font-size:15px}
.compare-table th:first-child,.compare-table td:first-child{text-align:left}
.compare-table td:first-child{color:var(--deep);font-weight:600}
.compare-table .best{color:var(--primary);font-weight:700}

.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.data-card{padding:34px 16px;text-align:center}
.data-num{font-size:40px;font-weight:800;color:var(--primary);line-height:1.2}
.data-num span{font-size:22px}
.data-label{margin-top:10px;color:var(--muted);font-size:15px}

.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{padding:24px}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:46px;height:46px;border-radius:50%;background:var(--grad);color:#fff;font-size:19px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.review-name{font-size:16px;font-weight:700;color:var(--deep)}
.stars{color:#FFB84D;font-size:14px;letter-spacing:2px}
.review-card p{font-size:14px}

.update-card{max-width:780px;margin:0 auto;background:var(--card);border:1px solid var(--border);border-radius:20px;padding:36px 40px;box-shadow:0 4px 14px rgba(46,35,51,.05)}
.update-head{display:flex;align-items:baseline;gap:16px;padding-bottom:18px;margin-bottom:10px;border-bottom:1px dashed var(--border)}
.update-ver{font-size:28px;font-weight:800;color:var(--primary)}
.update-date{color:var(--muted);font-size:14px}
.update-list li{position:relative;padding:10px 0 10px 30px;font-size:15px}
.update-list li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700}

.faq-list{max-width:780px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:14px;margin-bottom:14px;overflow:hidden;transition:box-shadow .3s}
.faq-item:hover{box-shadow:0 8px 22px rgba(255,92,141,.1)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;background:none;border:none;cursor:pointer;font-size:16px;font-weight:600;color:var(--deep);text-align:left}
.faq-q .arrow{flex-shrink:0;width:24px;height:24px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--soft);color:var(--primary);font-size:18px;transition:transform .3s}
.faq-item.open .faq-q .arrow{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 22px 20px;color:var(--muted);font-size:14px}
.faq-item.open .faq-a{max-height:240px}

.download{padding:84px 0;background:linear-gradient(180deg,var(--bg),#FFF0F6)}
.download-box{max-width:660px;margin:0 auto;text-align:center;background:var(--card);border:1px solid var(--border);border-radius:24px;padding:48px 44px;box-shadow:var(--shadow)}
.download-box h1{font-size:32px;font-weight:800;color:var(--deep)}
.download-box h1 .v{color:var(--primary)}
.dl-meta{margin:14px 0 30px;color:var(--muted);font-size:14px}
.dl-btns{display:flex;gap:16px;justify-content:center}
.dl-tip{margin-top:22px;font-size:14px;color:var(--muted)}

.footer{background:var(--deep);color:#CBBBD0;text-align:center;padding:30px 20px;font-size:14px}
.footer a{color:#fff}

.top-btn{position:fixed;right:26px;bottom:34px;z-index:99;width:46px;height:46px;border:none;border-radius:50%;background:var(--grad);color:#fff;font-size:20px;cursor:pointer;box-shadow:0 6px 18px rgba(255,92,141,.4);opacity:0;visibility:hidden;transform:translateY(12px);transition:all .3s}
.top-btn.show{opacity:1;visibility:visible;transform:translateY(0)}
.top-btn.show:hover{transform:translateY(-3px)}

@media(max-width:1024px){
  .hero-inner{gap:40px}
  .hero-pic{flex-basis:300px}
  .hero h1{font-size:38px}
  .nav{gap:14px}
  .nav a{font-size:14px}
  .works-grid,.features-grid,.reviews-grid{grid-template-columns:repeat(2,1fr)}
  .data-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:900px){
  .nav{display:none}
}
@media(max-width:768px){
  .container{padding:0 20px}
  .header-inner{height:58px}
  .logo{font-size:20px}
  .hero{padding:96px 0 56px}
  .hero-inner{flex-direction:column;gap:32px}
  .hero-text{width:100%}
  .hero h1{font-size:30px}
  .hero-desc{font-size:15px}
  .hero-btns{flex-direction:column;width:100%}
  .hero-btns .btn{width:100%}
  .hero-pic{flex:0 0 auto;width:100%;max-width:360px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:24px}
  .works-grid,.features-grid,.reviews-grid{grid-template-columns:1fr;gap:18px}
  .data-grid{gap:14px}
  .data-card{padding:24px 10px}
  .data-num{font-size:32px}
  .intro-box{padding:28px 22px}
  .update-card{padding:26px 22px}
  .update-head{flex-direction:column;align-items:flex-start;gap:4px}
  .compare-table th,.compare-table td{padding:12px 8px;font-size:13px}
  .compare-table thead th{font-size:13px}
  .faq-q{padding:16px 18px;font-size:15px}
  .dl-btns{flex-direction:column;width:100%}
  .dl-btns .btn{width:100%}
  .download-box{padding:36px 20px}
  .download-box h1{font-size:26px}
  .dl-meta{font-size:12px;white-space:nowrap}
  .top-btn{right:18px;bottom:24px}
}