:root{
  --primary:#7FC241;
  --primary-dark:#5E9E2B;
  --primary-soft:#EDF7E0;
  --dark:#15281C;
  --border:#E0EED3;
  --bg:#F7FAF2;
  --card:#FFFFFF;
  --text:#1C2B21;
  --text-2:#4E6053;
  --radius:14px;
  --shadow:0 6px 18px rgba(21,40,28,.06);
  --shadow-hover:0 16px 32px rgba(21,40,28,.12);
  --header-h:64px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-h)}
body{
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",system-ui,-apple-system,sans-serif;
  font-size:15px;line-height:1.7;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
a:focus-visible,.faq-q:focus-visible,.back-top:focus-visible{outline:2px solid var(--primary-dark);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

.header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.94);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);transition:box-shadow .3s;
}
.header.scrolled{box-shadow:0 4px 16px rgba(21,40,28,.08)}
.header-inner{display:flex;align-items:center;gap:24px;height:var(--header-h)}
.logo{display:flex;align-items:center;gap:8px;font-size:20px;font-weight:800;color:var(--dark);white-space:nowrap}
.logo-mark{
  width:30px;height:30px;border-radius:9px;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  display:flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:16px;height:16px;fill:#fff}
.nav{display:flex;gap:2px;margin-left:auto}
.nav a{font-size:14px;color:var(--text-2);padding:7px 10px;border-radius:8px;transition:color .25s,background .25s}
.nav a:hover{color:var(--primary-dark);background:var(--primary-soft)}
.btn-download{
  margin-left:8px;display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;line-height:1;color:#fff;background:var(--primary);
  padding:7px 16px;border-radius:999px;white-space:nowrap;
  box-shadow:0 4px 12px rgba(127,194,65,.3);
  transition:background .25s,box-shadow .25s,transform .25s;
}
.btn-download:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 8px 18px rgba(94,158,43,.35)}

.hero{padding:calc(var(--header-h) + 56px) 0 80px;background:linear-gradient(180deg,var(--primary-soft) 0%,var(--bg) 100%)}
.hero-inner{display:flex;align-items:center;gap:64px}
.hero-text{flex:1 1 auto}
.hero h1{font-size:46px;line-height:1.25;color:var(--dark);font-weight:800}
.h1-version{
  margin-left:10px;font-size:16px;font-weight:700;color:var(--primary-dark);
  background:var(--primary-soft);border:1px solid var(--border);
  padding:4px 12px;border-radius:999px;white-space:nowrap;vertical-align:middle;
}
.hero-desc{margin-top:20px;font-size:16px;color:var(--text-2);max-width:560px}
.hero-btns{display:flex;gap:16px;margin-top:34px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 30px;border-radius:12px;font-size:15px;font-weight:700;
  transition:transform .3s,box-shadow .3s,background .3s;
}
.btn-primary{color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-dark));box-shadow:0 10px 24px rgba(94,158,43,.35)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 32px rgba(94,158,43,.42)}
.btn-ios{color:var(--dark);background:var(--card);border:1px solid var(--border);box-shadow:0 6px 16px rgba(21,40,28,.06)}
.btn-ios:hover{transform:translateY(-3px);box-shadow:0 14px 28px rgba(21,40,28,.12)}
.hero-img{flex:0 0 340px}
.hero-img img{width:100%;border-radius:20px;border:1px solid var(--border);box-shadow:0 24px 48px rgba(21,40,28,.18)}

.section{padding:84px 0}
.section-title{font-size:32px;font-weight:800;color:var(--dark);text-align:center;line-height:1.3}
.section-sub{font-size:15px;color:var(--text-2);text-align:center;margin-top:10px;margin-bottom:48px}

.works-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.work-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:transform .3s,box-shadow .3s}
.work-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.work-card img{width:100%}
.work-label{padding:12px 16px 14px;font-size:14px;font-weight:600;color:var(--text);text-align:center}

.intro-box{max-width:860px;margin:0 auto;background:var(--card);border:1px solid var(--border);border-radius:18px;padding:44px 48px;box-shadow:var(--shadow)}
.intro-text{font-size:16px;color:var(--text);text-align:center}
.intro-points{margin-top:28px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.intro-points li{background:var(--primary-soft);border:1px solid var(--border);border-radius:12px;padding:14px 16px;font-size:14px;font-weight:600;color:var(--text);text-align:center}

.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:32px 28px;transition:transform .3s,box-shadow .3s}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.feature-icon{
  width:52px;height:52px;border-radius:14px;margin-bottom:18px;
  background:var(--primary-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:18px;font-weight:700;color:var(--dark);margin-bottom:8px}
.feature-card p{font-size:14px;color:var(--text-2)}

.compare-box{background:var(--card);border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
.compare-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.compare-table{width:100%;border-collapse:collapse;font-size:14px}
.compare-table th,.compare-table td{padding:15px 18px;text-align:center;border-bottom:1px solid var(--border);white-space:nowrap}
.compare-table thead th{background:var(--dark);color:#fff;font-weight:600}
.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table td:first-child{font-weight:600;color:var(--dark);text-align:left}
.compare-table th.hot{background:var(--primary);color:#fff}
.compare-table td.hot{background:var(--primary-soft);color:var(--primary-dark);font-weight:700}
.compare-hint{display:none;padding:12px 0 16px;text-align:center;font-size:13px;color:var(--text-2)}

.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.data-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:38px 20px 32px;text-align:center;transition:transform .3s,box-shadow .3s}
.data-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.data-num{font-size:44px;font-weight:800;color:var(--primary-dark);line-height:1.1}
.data-num span{font-size:24px;font-weight:700}
.data-label{margin-top:12px;font-size:16px;font-weight:700;color:var(--dark)}
.data-desc{margin-top:6px;font-size:13px;color:var(--text-2)}

.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.review-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:transform .3s,box-shadow .3s}
.review-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.review-head{display:flex;align-items:center;gap:12px}
.avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;font-size:18px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.review-name{font-size:15px;font-weight:700;color:var(--dark)}
.review-stars{color:#F5A623;font-size:14px;letter-spacing:2px}
.review-text{margin-top:14px;font-size:14px;color:var(--text-2);line-height:1.75}

.version-card{max-width:780px;margin:0 auto;background:var(--card);border:1px solid var(--border);border-radius:18px;padding:38px 40px;box-shadow:var(--shadow)}
.version-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.version-tag{display:inline-flex;align-items:center;background:var(--dark);color:#fff;font-size:16px;font-weight:700;padding:8px 18px;border-radius:999px}
.version-date{font-size:14px;color:var(--text-2)}
.version-log{margin-top:26px;padding-top:24px;border-top:1px dashed var(--border);display:flex;flex-direction:column;gap:12px}
.version-log li{display:flex;align-items:flex-start;gap:12px;font-size:14px;color:var(--text)}
.vtag{flex-shrink:0;font-size:12px;font-weight:700;padding:2px 10px;border-radius:6px;margin-top:3px}
.vtag-add{color:#2F7D1E;background:#E6F6DA}
.vtag-opt{color:#8A6D00;background:#FFF4D6}
.vtag-fix{color:#B04A2F;background:#FDE8E0}

.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:12px;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:600;color:var(--dark);text-align:left;
}
.faq-icon{position:relative;width:12px;height:12px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--text-2);border-radius:2px;transition:transform .3s,background .3s}
.faq-icon::before{left:0;top:5px;width:12px;height:2px}
.faq-icon::after{left:5px;top:0;width:2px;height:12px}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--primary-dark)}
.faq-item.open .faq-icon::after{transform:rotate(90deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 22px 18px;font-size:14px;color:var(--text-2)}

.download{padding:90px 0 100px;background:var(--dark);text-align:center}
.download h1{color:#fff;font-size:40px;font-weight:800}
.download .h1-version{background:rgba(127,194,65,.16);border-color:rgba(127,194,65,.4);color:#A8E26A}
.download-meta{margin-top:16px;font-size:14px;color:#9FB5A6}
.download-btns{display:flex;justify-content:center;gap:18px;margin-top:36px}
.download-btns .btn{padding:15px 32px}
.download-tip{margin-top:30px;font-size:14px;color:#B9CCBF}

.footer{padding:30px 0;background:#0F1C13;text-align:center;font-size:13px;color:#8CA395}
.footer-link{color:#C7D6CB;transition:color .25s}
.footer-link:hover{color:#A8E26A}

.back-top{
  position:fixed;right:26px;bottom:26px;z-index:90;
  width:46px;height:46px;border:none;border-radius:13px;
  background:var(--primary);color:#fff;font-size:20px;line-height:1;
  box-shadow:0 10px 22px rgba(21,40,28,.22);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s,transform .3s,background .3s;
}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top:hover{background:var(--primary-dark)}

@media (max-width:1024px){
  .hero-inner{gap:40px}
  .hero-img{flex:0 0 280px}
  .nav a{padding:7px 8px;font-size:13px}
  .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-grid{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:768px){
  .container{padding:0 20px}
  .header-inner{gap:12px}
  .nav{display:none}
  .btn-download{margin-left:auto}
  .hero{padding:calc(var(--header-h) + 40px) 0 56px}
  .hero-inner{flex-direction:column;gap:36px;align-items:center}
  .hero-text{text-align:center}
  .hero h1{font-size:32px}
  .hero-desc{margin:16px auto 0;font-size:15px}
  .hero-btns{flex-direction:column;width:100%;margin-top:28px}
  .hero-btns .btn{width:100%;padding:14px 0}
  .hero-img{flex:none;width:100%;max-width:340px}
  .section{padding:60px 0}
  .section-title{font-size:26px}
  .section-sub{margin-bottom:34px}
  .works-grid{grid-template-columns:1fr;gap:20px}
  .features-grid{grid-template-columns:1fr;gap:18px}
  .feature-card{padding:26px 22px}
  .data-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .data-card{padding:28px 12px 24px}
  .data-num{font-size:34px}
  .reviews-grid{grid-template-columns:1fr;gap:18px}
  .compare-table{min-width:640px}
  .compare-hint{display:block}
  .intro-box{padding:30px 22px}
  .intro-points{grid-template-columns:1fr}
  .version-card{padding:26px 22px}
  .version-head{flex-direction:column;align-items:flex-start}
  .faq-q{padding:16px 18px;font-size:15px}
  .download{padding:64px 0 72px}
  .download h1{font-size:30px}
  .download-meta{font-size:12px;white-space:nowrap}
  .download-btns{flex-direction:column;width:100%;gap:14px;margin-top:28px}
  .download-btns .btn{width:100%;padding:14px 0}
  .back-top{right:16px;bottom:16px;width:42px;height:42px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .faq-a,.faq-icon::before,.faq-icon::after,.btn,.btn-download,.back-top,.work-card,.feature-card,.data-card,.review-card{transition:none}
}