:root{
  --primary:#FF5E8A;
  --primary-deep:#E84A78;
  --grad:linear-gradient(135deg,var(--primary),var(--primary-deep));
  --primary-soft:#FFE8F0;
  --dark:#33203B;
  --text:#46364C;
  --muted:#8B7B91;
  --border:#F4E3EB;
  --bg:#FFF9FB;
  --card:#fff;
  --gold:#FFB400;
  --radius:16px;
  --shadow:0 14px 34px rgba(232,74,120,.14);
  --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:-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{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button{font-family:inherit}
ul{list-style:none}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.sec-title{font-size:32px;font-weight:800;color:var(--dark);text-align:center;letter-spacing:.5px}
.sec-title.light{color:#fff}
.sec-sub{margin-top:10px;text-align:center;font-size:15px;color:var(--muted)}
.sec-sub.light{color:rgba(255,255,255,.72)}

.nav{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav-h);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 24px rgba(51,32,59,.08)}
.nav-inner{height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{font-size:22px;font-weight:800;letter-spacing:1px;color:var(--primary-deep);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{font-size:14px;color:var(--text);padding:7px 11px;border-radius:9px;transition:color .2s,background .2s}
.nav-links a:hover,.nav-links a.on{color:var(--primary-deep);background:var(--primary-soft)}
.nav-btn{font-size:13px;font-weight:600;color:#fff;background:var(--grad);padding:8px 16px;border-radius:999px;box-shadow:0 4px 12px rgba(232,74,120,.28);transition:transform .2s,box-shadow .2s;white-space:nowrap}
.nav-btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(232,74,120,.38)}

.hero{background:radial-gradient(800px 420px at 12% 0%,#FFE9F2 0%,transparent 60%),radial-gradient(700px 380px at 92% 18%,#FDE3F0 0%,transparent 55%),linear-gradient(180deg,#FFF3F8 0%,var(--bg) 100%);padding:calc(var(--nav-h) + 60px) 0 76px}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-text h1{font-size:42px;line-height:1.32;font-weight:800;color:var(--dark);letter-spacing:.5px}
.hero-desc{margin-top:18px;font-size:16px;color:var(--text);max-width:560px}
.hero-btns{margin-top:30px;display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;font-size:15px;font-weight:700;color:#fff;background:var(--grad);padding:13px 28px;border-radius:999px;box-shadow:0 8px 20px rgba(232,74,120,.3);transition:transform .2s,box-shadow .2s;white-space:nowrap;border:none;cursor:pointer}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(232,74,120,.4)}
.btn-light{background:#fff;color:var(--primary-deep);border:1.5px solid var(--primary);box-shadow:0 8px 20px rgba(232,74,120,.14)}
.hero-img img{width:100%;border-radius:20px;box-shadow:var(--shadow);background:var(--primary-soft)}

.works-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:46px}
.work-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:0 4px 16px rgba(51,32,59,.05);transition:transform .3s,box-shadow .3s}
.work-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.work-card img{width:100%}

#intro{background:#fff}
.intro-card{max-width:920px;margin:46px auto 0;background:var(--card);border:1px solid var(--border);border-radius:20px;padding:42px 44px;box-shadow:0 4px 16px rgba(51,32,59,.05)}
.intro-text{font-size:16px;color:var(--text)}
.intro-feats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}
.intro-item{background:var(--primary-soft);border-radius:14px;padding:20px}
.intro-item b{display:block;font-size:16px;color:var(--primary-deep);margin-bottom:6px}
.intro-item span{font-size:13.5px;color:var(--text)}

.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:46px}
.feat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:transform .3s,box-shadow .3s}
.feat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.feat-ico{width:52px;height:52px;border-radius:14px;background:var(--grad);display:flex;align-items:center;justify-content:center;margin-bottom:16px;box-shadow:0 6px 14px rgba(232,74,120,.25)}
.feat-ico svg{width:26px;height:26px;color:#fff}
.feat-card h3{font-size:18px;font-weight:700;color:var(--dark);margin-bottom:8px}
.feat-card p{font-size:14px;color:var(--muted)}

#compare{background:#fff}
.cmp-wrap{margin-top:46px;overflow-x:auto}
.cmp{width:100%;min-width:540px;border-collapse:collapse;background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:0 4px 16px rgba(51,32,59,.06)}
.cmp th,.cmp td{padding:16px 20px;text-align:center;font-size:15px;border-bottom:1px solid var(--border)}
.cmp th{background:var(--dark);color:#fff;font-weight:600;letter-spacing:.5px}
.cmp th.hl{background:var(--grad)}
.cmp td{color:var(--text)}
.cmp td:first-child{text-align:left;font-weight:600;color:var(--dark)}
.cmp td.hl{background:var(--primary-soft);color:var(--primary-deep);font-weight:700}
.cmp tbody tr:last-child td{border-bottom:none}
.cmp tbody tr:hover td:not(.hl){background:#FFF6FA}

.data-sec{background:linear-gradient(135deg,#402454 0%,#2A1838 100%)}
.data-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px 32px;margin-top:50px}
.data-item{text-align:center}
.data-item .num{font-size:42px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums}
.data-item p{margin-top:8px;font-size:14px;color:rgba(255,255,255,.75)}

.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:46px}
.rev-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:transform .3s,box-shadow .3s}
.rev-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.rev-head{display:flex;align-items:center;gap:14px}
.rev-av{width:46px;height:46px;flex-shrink:0;border-radius:50%;background:var(--grad);color:#fff;font-size:19px;font-weight:700;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 10px rgba(232,74,120,.3)}
.rev-info b{display:block;font-size:15px;color:var(--dark)}
.stars{color:var(--gold);font-size:14px;letter-spacing:2px}
.rev-card>p{margin-top:14px;font-size:14px;color:var(--text)}

.ver-card{max-width:880px;margin:46px auto 0;background:var(--card);border:1px solid var(--border);border-radius:20px;padding:38px 42px;box-shadow:0 4px 16px rgba(51,32,59,.05)}
.ver-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-bottom:18px;border-bottom:1px dashed var(--border)}
.ver-badge{font-size:27px;font-weight:800;color:var(--primary-deep);letter-spacing:.5px}
.ver-date{font-size:14px;color:var(--muted)}
.ver-list{margin-top:20px}
.ver-list li{position:relative;padding-left:24px;font-size:15px;color:var(--text);margin-bottom:12px}
.ver-list li:last-child{margin-bottom:0}
.ver-list li::before{content:"";position:absolute;left:2px;top:10px;width:8px;height:8px;border-radius:50%;background:var(--grad)}

.faq-list{max-width:880px;margin:46px auto 0}
.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:var(--primary);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;cursor:pointer;font-size:15.5px;font-weight:600;color:var(--dark);text-align:left}
.faq-q .ico{position:relative;width:22px;height:22px;flex-shrink:0}
.faq-q .ico::before,.faq-q .ico::after{content:"";position:absolute;background:var(--primary-deep);border-radius:2px;transition:transform .3s}
.faq-q .ico::before{left:3px;right:3px;top:10px;height:2px}
.faq-q .ico::after{top:3px;bottom:3px;left:10px;width:2px}
.faq-item.open .faq-q .ico::after{transform:scaleY(0)}
.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)}

.dl-sec{background:linear-gradient(180deg,var(--bg) 0%,#FFEFF5 100%)}
.dl-card{max-width:780px;margin:0 auto;background:linear-gradient(160deg,#fff 0%,#FFF0F6 100%);border:1px solid var(--border);border-radius:24px;padding:54px 46px;text-align:center;box-shadow:0 10px 32px rgba(232,74,120,.12)}
.dl-card h1{font-size:34px;font-weight:800;color:var(--dark);letter-spacing:.5px}
.dl-meta{margin-top:12px;font-size:14px;color:var(--muted)}
.dl-btns{margin-top:30px;display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.btn-lg{padding:15px 34px;font-size:16px}
.dl-tip{margin-top:22px;font-size:14px;color:var(--text)}

.footer{background:var(--dark);padding:28px 0;text-align:center}
.footer p{color:rgba(255,255,255,.72);font-size:13.5px}
.footer a{color:#fff;font-weight:600}

.to-top{position:fixed;right:24px;bottom:24px;z-index:99;width:46px;height:46px;border-radius:50%;border:none;background:var(--grad);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(232,74,120,.38);opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .3s,transform .3s,visibility .3s}
.to-top svg{width:20px;height:20px}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{transform:translateY(-2px)}

@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr 1fr;gap:36px}
  .hero-text h1{font-size:34px}
  .works-grid,.feat-grid,.rev-grid{grid-template-columns:repeat(2,1fr)}
  .data-item .num{font-size:34px}
  .data-grid{gap:36px 24px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .nav-links{display:none}
  .nav-btn{min-height:44px;padding:10px 18px}
  .intro-item span{font-size:14px}
  .section{padding:60px 0}
  .hero{padding:calc(var(--nav-h) + 28px) 0 48px}
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .hero-text h1{font-size:28px}
  .hero-desc{font-size:15px}
  .hero-btns{flex-direction:column}
  .hero-btns .btn{width:100%;padding:14px 20px}
  .sec-title{font-size:24px}
  .sec-sub{font-size:14px}
  .works-grid{grid-template-columns:1fr;gap:20px}
  .intro-card{padding:28px 22px}
  .intro-feats{grid-template-columns:1fr}
  .feat-grid{grid-template-columns:1fr}
  .data-grid{grid-template-columns:repeat(2,1fr);gap:30px 16px}
  .data-item .num{font-size:28px}
  .rev-grid{grid-template-columns:1fr}
  .ver-card{padding:28px 22px}
  .ver-badge{font-size:22px}
  .faq-q{padding:16px 18px;font-size:15px}
  .dl-card{padding:38px 22px}
  .dl-card h1{font-size:26px}
  .dl-meta{font-size:12.5px;white-space:nowrap}
  .dl-btns{flex-direction:column}
  .dl-btns .btn{width:100%;padding:15px 20px;font-size:15px}
  .to-top{right:20px;bottom:20px}
}
@media (max-width:480px){
  .cmp{min-width:0}
  .cmp th,.cmp td{padding:10px 8px;font-size:13px}
}