:root{
  --primary:#FF5C8A;
  --primary-deep:#F23E74;
  --dark:#2C2340;
  --text:#4E4768;
  --muted:#948CA8;
  --border:#F3E6EE;
  --bg:#FFF9FB;
  --card:#FFFFFF;
  --radius:16px;
  --shadow:0 10px 26px rgba(255,92,138,.14);
  --grad:linear-gradient(135deg,#FF5C8A,#FF9DBB);
  --max:1160px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.75;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

.nav{position:fixed;top:0;left:0;right:0;z-index:99;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}
.nav-scrolled{box-shadow:0 6px 18px rgba(44,35,64,.08)}
.nav-inner{max-width:var(--max);margin:0 auto;height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 24px}
.logo{font-size:21px;font-weight:800;color:var(--dark);letter-spacing:1px;white-space:nowrap}
.logo i{font-style:normal;color:var(--primary)}
.nav-menu{display:flex;align-items:center;gap:2px}
.nav-menu a{display:block;padding:8px 10px;font-size:14px;color:var(--dark);border-radius:8px;transition:color .25s,background .25s}
.nav-menu a:hover{color:var(--primary);background:rgba(255,92,138,.08)}
.dl-btn{display:inline-flex;align-items:center;justify-content:center;height:26px;padding:0 14px;background:var(--grad);color:#fff;font-size:12px;font-weight:700;border-radius:999px;white-space:nowrap;transition:transform .3s,box-shadow .3s;box-shadow:0 4px 12px rgba(255,92,138,.25)}
.dl-btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(255,92,138,.38)}

.hero{padding:130px 0 90px;background:linear-gradient(180deg,#FFEFF5 0%,var(--bg) 100%)}
.hero-inner{display:flex;align-items:center;gap:56px}
.hero-info{flex:1.05}
.hero-badge{display:inline-block;padding:6px 16px;background:var(--card);border:1px solid #FFD3E2;border-radius:999px;color:var(--primary-deep);font-size:13px;font-weight:600}
.hero h1{font-size:42px;line-height:1.3;color:var(--dark);font-weight:800;margin-top:18px}
.hero h1 b{color:var(--primary)}
.hero-desc{margin-top:16px;font-size:16px;color:var(--text);max-width:520px}
.hero-btns{display:flex;gap:14px;margin-top:30px}
.btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 30px;border-radius:999px;font-size:15px;font-weight:700;transition:transform .3s,box-shadow .3s}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px rgba(255,92,138,.32)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(255,92,138,.42)}
.btn-ghost{background:var(--card);color:var(--primary-deep);border:1px solid #FFD3E2}
.btn-ghost:hover{transform:translateY(-3px);box-shadow:0 10px 22px rgba(255,92,138,.16)}
.hero-img{flex:1;max-width:430px}
.hero-img img{width:100%;height:auto;aspect-ratio:2/3;object-fit:cover;border-radius:22px;border:6px solid #fff;box-shadow:0 20px 50px rgba(255,92,138,.26)}

.sec{padding:78px 0}
.sec-head{text-align:center;margin-bottom:44px}
.sec-head h2{font-size:30px;color:var(--dark);font-weight:800}
.sec-head .sub{color:var(--muted);margin-top:8px;font-size:15px}

.works-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.work-card,.feature-card,.review-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);transition:transform .3s,box-shadow .3s}
.work-card:hover,.feature-card:hover,.review-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.work-card{overflow:hidden}
.work-card img{width:100%;height:auto;aspect-ratio:2/3;object-fit:cover}

.intro{background:var(--card);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.intro-content{max-width:880px;margin:0 auto}
.intro-content p{font-size:15.5px;margin-bottom:16px;text-indent:2em}
.intro-tags{display:flex;justify-content:center;gap:14px;margin-top:26px;flex-wrap:wrap}
.intro-tags span{padding:7px 20px;background:#FFF1F6;border:1px solid var(--border);border-radius:999px;color:var(--primary-deep);font-size:14px;font-weight:600}

.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature-card{padding:30px 26px}
.feature-icon{width:52px;height:52px;border-radius:14px;background:#FFEFF5;display:flex;align-items:center;justify-content:center;color:var(--primary)}
.feature-icon svg{width:26px;height:26px}
.feature-card h3{font-size:17px;color:var(--dark);margin:16px 0 8px}
.feature-card p{font-size:14px;color:var(--text)}

.compare-wrap{max-width:860px;margin:0 auto;overflow:hidden;border-radius:var(--radius);border:1px solid var(--border);box-shadow:0 4px 14px rgba(44,35,64,.05)}
.compare-table{width:100%;border-collapse:collapse;table-layout:fixed;background:var(--card)}
.compare-table th,.compare-table td{padding:15px 18px;text-align:center;font-size:14.5px;border-bottom:1px solid var(--border)}
.compare-table thead th{background:var(--dark);color:#fff;font-weight:700;font-size:15px}
.compare-table th:first-child,.compare-table td:first-child{text-align:left;color:var(--muted);font-weight:600;width:30%}
.compare-table td.hl{background:#FFF4F8;color:var(--primary-deep);font-weight:700}
.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table tbody tr:hover td{background:#FFF9FC}

.data{background:linear-gradient(150deg,#2C2340 0%,#45336B 100%)}
.sec-head.light h2{color:#fff}
.sec-head.light .sub{color:rgba(255,255,255,.7)}
.data-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);padding:32px 20px;text-align:center;transition:transform .3s,background .3s}
.stat-card:hover{transform:translateY(-6px);background:rgba(255,255,255,.16)}
.stat-num{font-size:40px;font-weight:800;color:#fff;line-height:1.2}
.stat-num span{color:#FF9DBB}
.stat-label{margin-top:8px;color:rgba(255,255,255,.82);font-size:14px}

.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review-card{padding:24px}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:44px;height:44px;border-radius:50%;background:var(--grad);color:#fff;font-size:18px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.review-user{min-width:0}
.review-name{font-size:15px;font-weight:700;color:var(--dark)}
.stars{color:#FFB400;font-size:13px;letter-spacing:2px}
.review-text{font-size:14px;color:var(--text);line-height:1.8}

.update-card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:36px 38px;max-width:820px;margin:0 auto;box-shadow:0 4px 14px rgba(44,35,64,.05)}
.update-head{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.version-badge{background:var(--grad);color:#fff;font-weight:800;padding:8px 18px;border-radius:999px;font-size:16px}
.update-time{color:var(--muted);font-size:14px}
.update-list{margin-top:22px;border-top:1px dashed var(--border);padding-top:20px}
.update-list li{position:relative;padding-left:26px;margin-bottom:10px;font-size:14.5px}
.update-list li::before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:800}
.update-list li:last-child{margin-bottom:0}

.faq-list{max-width:820px;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,border-color .3s}
.faq-item.open{border-color:#FFD3E2;box-shadow:var(--shadow)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 22px;background:none;border:none;cursor:pointer;font-size:15.5px;font-weight:700;color:var(--dark);text-align:left}
.faq-q .arrow{width:26px;height:26px;border-radius:50%;background:#FFEFF5;color:var(--primary);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:11px;transition:transform .3s}
.faq-item.open .arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 20px;font-size:14.5px;color:var(--text)}

.download{background:linear-gradient(180deg,var(--bg) 0%,#FFEFF5 100%);text-align:center}
.download h1{font-size:34px;color:var(--dark);font-weight:800}
.download h1 b{color:var(--primary)}
.dl-meta{margin-top:12px;color:var(--muted);font-size:14px}
.dl-btns{display:flex;justify-content:center;gap:16px;margin-top:28px}
.dl-big{height:54px;padding:0 40px;font-size:16.5px}
.dl-tip{margin-top:20px;font-size:14px;color:var(--muted)}

.footer{background:var(--dark);color:rgba(255,255,255,.75);text-align:center;padding:26px 20px;font-size:13.5px}
.footer a{color:#fff;transition:color .25s}
.footer a:hover{color:#FF9DBB}

.back-top{position:fixed;right:26px;bottom:30px;width:46px;height:46px;border-radius:50%;border:none;background:var(--grad);color:#fff;font-size:20px;cursor:pointer;box-shadow:0 8px 20px rgba(255,92,138,.35);opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s,transform .3s;z-index:98}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{transform:translateY(-3px)}

@media (max-width:1024px){
  .nav-menu a{padding:8px 8px;font-size:13px}
  .hero h1{font-size:38px}
}

@media (max-width:900px){
  .works-grid{grid-template-columns:repeat(2,1fr)}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .reviews-grid{grid-template-columns:repeat(2,1fr)}
  .data-stats{grid-template-columns:repeat(2,1fr)}
  .hero-inner{gap:40px}
  .hero-img{max-width:360px}
}

@media (max-width:768px){
  .wrap{padding:0 20px}
  .nav-inner{height:56px;padding:0 20px}
  .nav-menu{display:none}
  .logo{font-size:17px}
  .dl-btn{height:24px;padding:0 12px;font-size:11.5px}
  .hero{padding:96px 0 56px}
  .hero-inner{flex-direction:column;gap:28px}
  .hero-info{width:100%}
  .hero-badge{font-size:12px;padding:5px 12px}
  .hero h1{font-size:27px;margin-top:14px}
  .hero-desc{font-size:14.5px;margin-top:12px}
  .hero-btns{flex-direction:column;width:100%;gap:12px;margin-top:24px}
  .hero-btns .btn{width:100%}
  .hero-img{max-width:100%}
  .sec{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .sec-head h2{font-size:24px}
  .sec-head .sub{font-size:13.5px}
  .works-grid{grid-template-columns:1fr;gap:18px}
  .features-grid{grid-template-columns:1fr;gap:16px}
  .feature-card{padding:24px 20px}
  .reviews-grid{grid-template-columns:1fr;gap:16px}
  .data-stats{gap:14px}
  .stat-card{padding:24px 12px}
  .stat-num{font-size:32px}
  .compare-table th,.compare-table td{padding:10px 6px;font-size:12px}
  .compare-table thead th{font-size:12.5px}
  .intro-content p{font-size:14.5px}
  .update-card{padding:24px 18px}
  .update-time{font-size:13px}
  .faq-q{font-size:14px;padding:15px 16px}
  .faq-a p{font-size:13.5px;padding:0 16px 18px}
  .download h1{font-size:23px}
  .dl-meta{margin-top:10px;font-size:12px;white-space:nowrap}
  .dl-btns{flex-direction:column;align-items:stretch;gap:12px;margin-top:24px}
  .dl-big{width:100%}
  .dl-tip{font-size:13px}
  .footer{font-size:12px;padding:22px 20px}
  .back-top{right:16px;bottom:18px;width:42px;height:42px;font-size:18px}
}