:root{
  --primary:#F25C9E;
  --primary-deep:#E0478C;
  --primary-bg:#FFF0F7;
  --dark:#3A2733;
  --text:#5F4B57;
  --border:#F4DCE8;
  --bg:#FFF9FC;
  --card:#FFFFFF;
  --radius:16px;
  --shadow:0 6px 18px rgba(240,92,158,.08);
  --shadow-hover:0 14px 30px rgba(240,92,158,.18);
  --maxw:1200px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{text-decoration:none;color:inherit}
ul{list-style:none}
button{font-family:inherit}
::selection{background:var(--primary);color:#fff}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:84px 0}
.sec-title{text-align:center;font-size:34px;font-weight:800;color:var(--dark);letter-spacing:1px}
.sec-sub{text-align:center;margin:12px auto 44px;max-width:640px;font-size:16px}

.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.card-hover{transition:transform .35s,box-shadow .35s}
.card-hover:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}

.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);transition:box-shadow .3s}
.nav.scrolled{box-shadow:0 4px 18px rgba(240,92,158,.1)}
.nav-inner{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 24px}
.logo{font-size:22px;font-weight:800;color:var(--dark);letter-spacing:1px;white-space:nowrap}
.logo span{color:var(--primary)}
.nav-links{display:flex;align-items:center;gap:20px;font-size:15px}
.nav-links a{transition:color .25s;white-space:nowrap}
.nav-links a:hover{color:var(--primary)}
.nav-btn{font-size:14px;font-weight:700;color:#fff;background:var(--primary);padding:9px 20px;border-radius:999px;transition:.3s;box-shadow:0 4px 12px rgba(240,92,158,.25);white-space:nowrap}
.nav-btn:hover{background:var(--primary-deep);transform:translateY(-2px);box-shadow:0 8px 18px rgba(240,92,158,.35)}

.hero{padding:150px 0 84px;background:linear-gradient(180deg,var(--primary-bg) 0%,var(--bg) 100%);overflow:hidden}
.hero-inner{display:flex;align-items:center;gap:52px}
.hero-text{flex:1;min-width:0}
.hero-text h1{font-size:44px;font-weight:800;color:var(--dark);line-height:1.3;letter-spacing:1px}
.hero-text .ver{margin-left:12px;font-size:22px;font-weight:700;color:var(--primary);vertical-align:super}
.hero-text p{margin-top:20px;font-size:17px;max-width:580px}
.hero-btns{display:flex;gap:16px;margin-top:34px}
.hero-pic{flex:0 0 300px}
.hero-pic img{width:100%;border-radius:20px;border:6px solid #fff;box-shadow:0 20px 40px rgba(240,92,158,.22)}

.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 30px;border-radius:999px;font-size:16px;font-weight:700;transition:.3s;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(240,92,158,.25)}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-2px);box-shadow:0 10px 24px rgba(240,92,158,.35)}
.btn-outline{border:2px solid var(--primary);color:var(--primary);background:#fff}
.btn-outline:hover{background:var(--primary-bg);transform:translateY(-2px);box-shadow:0 8px 20px rgba(240,92,158,.15)}

.works-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.work-card{overflow:hidden}
.work-card img{width:100%}
.work-card figcaption{padding:14px 16px;font-size:15px;font-weight:700;color:var(--dark);text-align:center}

.about-wrap{display:flex;gap:44px;align-items:flex-start;padding:44px}
.about-text{flex:1.25;min-width:0}
.about-text p{font-size:15.5px;margin-bottom:16px}
.about-text p:last-child{margin-bottom:0}
.about-points{flex:1;min-width:0;display:grid;gap:12px}
.about-points li{position:relative;padding:15px 18px 15px 46px;background:var(--primary-bg);border-radius:12px;font-size:15px;font-weight:600;color:var(--dark)}
.about-points li::before{content:"";position:absolute;left:18px;top:50%;transform:translateY(-50%);width:10px;height:10px;border-radius:50%;background:var(--primary)}

.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{padding:34px 26px;text-align:center}
.feature-icon{width:58px;height:58px;margin:0 auto 18px;border-radius:var(--radius);background:var(--primary-bg);display:flex;align-items:center;justify-content:center;color:var(--primary)}
.feature-icon svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.feature-card h3{font-size:19px;font-weight:700;color:var(--dark);margin-bottom:10px}
.feature-card p{font-size:14.5px}

.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.compare-table{width:100%;min-width:560px;border-collapse:collapse;overflow:hidden}
.compare-table th,.compare-table td{padding:16px 20px;text-align:center;font-size:15px;border-bottom:1px solid var(--border)}
.compare-table th{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#fff;font-size:16px;font-weight:700}
.compare-table td:first-child{text-align:left;font-weight:700;color:var(--dark)}
.compare-table tr:last-child td{border-bottom:none}
.compare-table tbody tr{transition:background .25s}
.compare-table tbody tr:hover{background:var(--primary-bg)}

.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{padding:38px 20px;text-align:center}
.num{font-size:46px;font-weight:800;color:var(--primary);line-height:1.2;letter-spacing:1px}
.stat-label{margin-top:10px;font-size:15px}

.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{padding:26px}
.review-head{display:flex;align-items:center;gap:14px}
.avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#fff;font-size:20px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.review-name{font-size:15px;font-weight:700;color:var(--dark)}
.stars{font-size:14px;color:#FFB800;letter-spacing:3px;margin-top:2px}
.review-card p{margin-top:14px;font-size:14.5px}

.update-card{max-width:780px;margin:0 auto;padding:40px}
.update-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.update-ver{font-size:24px;font-weight:800;color:var(--dark)}
.update-ver span{color:var(--primary)}
.update-date{font-size:14px;background:var(--primary-bg);color:var(--primary-deep);padding:6px 16px;border-radius:999px;font-weight:600}
.update-list{margin-top:22px;display:grid;gap:13px}
.update-list li{position:relative;padding-left:24px;font-size:15px}
.update-list li::before{content:"";position:absolute;left:3px;top:10px;width:8px;height:8px;border-radius:50%;background:var(--primary)}

.faq-list{max-width:780px;margin:0 auto;display:grid;gap:14px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:box-shadow .3s}
.faq-item.open{box-shadow:var(--shadow)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;background:none;border:none;font-size:16px;font-weight:700;color:var(--dark);cursor:pointer;text-align:left}
.faq-arrow{width:10px;height:10px;border-right:2px solid var(--primary);border-bottom:2px solid var(--primary);transform:rotate(45deg);transition:transform .3s;flex-shrink:0;margin-top:-4px}
.faq-item.open .faq-arrow{transform:rotate(225deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .35s ease}
.faq-a-inner{overflow:hidden}
.faq-a p{padding:0 22px 20px;font-size:14.5px}
.faq-item.open .faq-a{grid-template-rows:1fr}

.download{background:linear-gradient(180deg,var(--bg),var(--primary-bg));text-align:center}
.download h1{font-size:38px;font-weight:800;color:var(--dark);letter-spacing:1px}
.download h1 span{margin-left:10px;color:var(--primary)}
.dl-meta{margin-top:16px;font-size:15px}
.dl-meta b{color:var(--dark)}
.dl-btns{display:flex;justify-content:center;gap:18px;margin-top:34px}
.dl-btns .btn{padding:15px 36px;font-size:17px}
.dl-tip{margin-top:26px;font-size:15px;font-weight:600;color:var(--primary-deep)}

footer{border-top:1px solid var(--border);background:var(--card);padding:30px 24px;text-align:center;font-size:14px}
footer a{color:var(--primary);font-weight:700}

.to-top{position:fixed;right:24px;bottom:24px;z-index:99;width:46px;height:46px;border:none;border-radius:50%;background:var(--primary);color:#fff;font-size:20px;line-height:1;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .3s,transform .3s,visibility .3s,background .3s;box-shadow:0 6px 16px rgba(240,92,158,.35)}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--primary-deep)}

@media (max-width:1024px){
  .nav-links{font-size:13px;gap:10px}
  .nav-inner{padding:12px 16px}
  .hero{padding:130px 0 64px}
  .hero-text h1{font-size:38px}
  .works-grid{grid-template-columns:repeat(2,1fr)}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .reviews-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .about-wrap{flex-direction:column}
}

@media (max-width:900px){
  .nav-links{font-size:12.5px;gap:8px}
  .logo{font-size:20px}
  .nav-btn{font-size:13px;padding:8px 14px}
}

@media (max-width:768px){
  .container{padding:0 20px}
  section{padding:56px 0}
  .nav-links{display:none}
  .nav-inner{padding:10px 20px}
  .logo{min-height:44px;display:flex;align-items:center}
  .nav-btn{min-height:44px;padding:11px 18px}
  .hero{padding:104px 0 52px}
  .hero-inner{flex-direction:column;gap:30px;text-align:center}
  .hero-text h1{font-size:30px}
  .hero-text .ver{font-size:17px;vertical-align:baseline}
  .hero-text p{margin-left:auto;margin-right:auto;font-size:15.5px}
  .hero-btns{flex-direction:column;width:100%;margin-top:28px}
  .hero-btns .btn{width:100%}
  .hero-pic{flex:none;width:100%;max-width:340px;margin:0 auto}
  .works-grid{grid-template-columns:1fr}
  .sec-title{font-size:26px}
  .sec-sub{font-size:14.5px;margin-bottom:30px}
  .stats-grid{grid-template-columns:1fr}
  .compare-table{min-width:0}
  .compare-table th,.compare-table td{padding:11px 8px;font-size:14px}
  .about-wrap{padding:26px 20px}
  .update-card{padding:26px 20px}
  .update-ver{font-size:20px}
  .download h1{font-size:26px}
  .dl-meta{font-size:12px;white-space:nowrap}
  .dl-btns{flex-direction:column;width:100%;gap:14px;margin-top:28px}
  .dl-btns .btn{width:100%;padding:14px 24px;font-size:15.5px}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px;font-size:14px}
  .to-top{right:16px;bottom:16px}
}