:root{
  --primary:#FF5E9C;
  --primary-dark:#E63D84;
  --purple:#9B6BFF;
  --gradient:linear-gradient(135deg,var(--primary),var(--purple));
  --bg:#FFF9FC;
  --bg-soft:#FFF0F7;
  --card:#FFFFFF;
  --border:#F5E1EE;
  --text:#2E2A35;
  --text-sub:#6E6876;
  --radius:16px;
  --shadow:0 6px 18px rgba(255,94,156,.08);
  --shadow-hover:0 14px 30px rgba(255,94,156,.18);
  --nav-h:64px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 12px)}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.92);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);transition:box-shadow .3s}
.nav.scrolled{box-shadow:0 4px 16px rgba(255,94,156,.10)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 24px;height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{font-size:22px;font-weight:800;white-space:nowrap;line-height:1}
.logo,.hero h1 em,.download-card h1 em,.data-num{background:var(--gradient);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.nav-links{display:flex;align-items:center;gap:18px}
.nav-links a{font-size:14px;color:var(--text-sub);transition:color .25s;white-space:nowrap;line-height:1}
.nav-links a:hover,.nav-links a.active{color:var(--primary)}
.nav-download{background:var(--gradient);color:#fff;font-size:14px;font-weight:600;padding:6px 14px;border-radius:999px;white-space:nowrap;line-height:1.4;transition:transform .25s,box-shadow .25s}
.nav-download:hover{transform:translateY(-1px);box-shadow:0 6px 14px rgba(255,94,156,.32)}

.btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 30px;border-radius:999px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .3s,box-shadow .3s,background .3s}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:0 8px 20px rgba(255,94,156,.25)}
.btn-primary:hover,.btn-outline:hover{transform:translateY(-2px)}
.btn-primary:hover{box-shadow:0 12px 26px rgba(255,94,156,.36)}
.btn-outline{background:var(--card);color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--bg-soft)}

.hero{padding:calc(var(--nav-h) + 60px) 0 76px;background:radial-gradient(600px 320px at 85% 15%,rgba(155,107,255,.12),transparent 62%),radial-gradient(560px 320px at 8% 90%,rgba(255,94,156,.12),transparent 62%),var(--bg)}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-tag{display:inline-block;font-size:13px;color:var(--primary-dark);background:rgba(255,94,156,.10);padding:5px 14px;border-radius:999px;margin-bottom:18px;font-weight:600}
.hero h1{font-size:44px;line-height:1.25;font-weight:800;margin-bottom:18px}
.hero h1 em,.download-card h1 em{font-style:normal}
.hero-desc{font-size:16px;color:var(--text-sub);margin-bottom:30px;max-width:560px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-img img{width:100%;height:auto;border-radius:var(--radius);box-shadow:0 18px 40px rgba(255,94,156,.20)}

.section{padding:76px 0}
.section-head{text-align:center;margin-bottom:44px}
.section-head h2{font-size:30px;font-weight:800;display:inline-block;position:relative;padding-bottom:12px}
.section-head h2::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:44px;height:4px;border-radius:2px;background:var(--gradient)}
.section-head p{color:var(--text-sub);margin-top:12px;font-size:15px}

.work-card,.intro-card,.feature-card,.data-card,.review-card{transition:transform .3s,box-shadow .3s}
.work-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.intro-card:hover,.feature-card:hover,.data-card:hover,.review-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover)}
.works-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.work-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.work-card img{width:100%;height:auto}

.intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.intro-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:30px 26px}
.intro-num{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:10px;background:var(--gradient);color:#fff;font-weight:700;font-size:14px;margin-bottom:14px}
.intro-card h3{font-size:18px;margin-bottom:12px}
.intro-card p{color:var(--text-sub);font-size:14px;line-height:1.75}

.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:34px 24px;text-align:center}
.feature-icon{width:58px;height:58px;margin:0 auto 16px;border-radius:16px;background:var(--bg-soft);color:var(--primary-dark);display:flex;align-items:center;justify-content:center}
.feature-icon svg{width:26px;height:26px}
.feature-card h3{font-size:17px;margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-sub);line-height:1.7}

.compare-wrap{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.compare-head,.compare-row{display:grid;grid-template-columns:1.15fr 1.4fr 1.4fr;align-items:center}
.compare-head{background:var(--bg-soft);font-weight:700;font-size:15px}
.compare-head div,.compare-row div{padding:16px 20px;border-bottom:1px solid var(--border)}
.compare-row:last-child div{border-bottom:none}
.c-label{font-weight:600}
.c-ours{background:rgba(255,94,156,.05)}
.c-ours strong{color:var(--primary-dark)}
.c-other{color:var(--text-sub)}
.ok{color:var(--primary-dark);font-weight:700;margin-right:4px}
.no{color:#B9B3BE;font-weight:700;margin-right:4px}

.data-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.data-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:36px 20px;text-align:center}
.data-num{font-size:38px;font-weight:800;line-height:1.2}
.data-label{color:var(--text-sub);font-size:14px;margin-top:8px}

.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:46px;height:46px;border-radius:50%;background:var(--gradient);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;flex-shrink:0}
.review-name{font-weight:700;font-size:15px}
.stars{color:#FFB800;font-size:14px;letter-spacing:2px;margin-top:2px}
.review-text{font-size:14px;color:var(--text-sub);line-height:1.7}

.update-card{max-width:780px;margin:0 auto;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:34px 38px}
.update-meta{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.version-badge{background:var(--gradient);color:#fff;font-weight:700;font-size:14px;padding:6px 16px;border-radius:999px}
.update-time{color:var(--text-sub);font-size:14px}
.update-list li{position:relative;padding-left:24px;margin-bottom:12px;font-size:15px;color:var(--text-sub)}
.update-list li::before{content:"";position:absolute;left:4px;top:9px;width:8px;height:8px;border-radius:50%;background:var(--primary)}

.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}
.faq-item.open{box-shadow:var(--shadow)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 22px;background:none;border:none;cursor:pointer;font-size:16px;font-weight:600;color:var(--text);text-align:left}
.faq-icon{position:relative;width:18px;height:18px;flex-shrink:0;transition:transform .3s}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px}
.faq-icon::before{left:0;right:0;top:8px;height:2px}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a p{padding:0 22px 20px;font-size:14px;color:var(--text-sub);line-height:1.75}

.download{background:radial-gradient(600px 300px at 50% 0,rgba(255,94,156,.10),transparent 60%),var(--bg-soft)}
.download-card{max-width:720px;margin:0 auto;text-align:center;background:var(--card);border:1px solid var(--border);border-radius:24px;padding:56px 40px;box-shadow:var(--shadow)}
.download-card h1{font-size:34px;font-weight:800;margin-bottom:16px}
.download-meta{display:flex;justify-content:center;align-items:center;gap:22px;color:var(--text-sub);font-size:14px;margin-bottom:32px}
.download-btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.download-tip{margin-top:26px;font-size:14px;color:var(--text-sub)}

.footer{background:#2E2A35;color:#C9C4D2;padding:32px 0;text-align:center;font-size:14px}
.footer-link{color:#fff;font-weight:700;transition:color .25s}
.footer-link:hover{color:#FF9CC6}

.back-top{position:fixed;right:24px;bottom:32px;width:44px;height:44px;border-radius:50%;border:none;cursor:pointer;background:var(--gradient);color:#fff;font-size:18px;box-shadow:0 8px 18px rgba(255,94,156,.32);opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .3s,transform .3s,visibility .3s;z-index:99;display:flex;align-items:center;justify-content:center}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{transform:translateY(-2px)}

@media (max-width:1024px){
  .nav-links{gap:12px}
  .nav-links a{font-size:13px}
  .hero h1{font-size:36px}
  .hero-inner{gap:36px}
  .works-grid,.reviews-grid,.intro-grid,.features-grid{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:768px){
  .nav-inner{padding:0 20px}
  .nav-links{display:none}
  .container{padding:0 20px}
  .hero{padding:calc(var(--nav-h) + 40px) 0 52px}
  .hero-inner{grid-template-columns:1fr;gap:32px;text-align:center}
  .hero h1{font-size:30px}
  .hero-desc{margin:0 auto 26px}
  .hero-btns,.download-btns{flex-direction:column;width:100%}
  .hero-btns .btn,.download-btns .btn{width:100%}
  .hero-img{max-width:280px;margin:0 auto}
  .section{padding:54px 0}
  .section-head{margin-bottom:34px}
  .section-head h2{font-size:24px}
  .works-grid{grid-template-columns:1fr;gap:18px}
  .intro-grid,.features-grid{grid-template-columns:1fr;gap:16px}
  .data-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .data-num{font-size:32px}
  .reviews-grid{grid-template-columns:1fr;gap:16px}
  .compare-head{display:none}
  .compare-row{grid-template-columns:1fr;border:1px solid var(--border);border-radius:12px;margin-bottom:12px;overflow:hidden}
  .compare-row div{padding:11px 16px;border-bottom:1px solid var(--border)}
  .compare-row div:last-child{border-bottom:none}
  .compare-row .c-label{background:var(--bg-soft)}
  .compare-row .c-ours{background:rgba(255,94,156,.06)}
  .update-card{padding:26px 22px}
  .update-list li{font-size:14px}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a p{padding:0 18px 18px}
  .download-card{padding:40px 22px}
  .download-card h1{font-size:26px}
  .download-meta{font-size:12px;gap:10px;white-space:nowrap;margin-bottom:26px}
  .back-top{right:16px;bottom:24px}
}

@media (max-width:480px){
  .hero h1{font-size:26px}
  .download-meta{font-size:11px}
}