:root{
  --brand:#7c4ef0; --brand-2:#a06bff; --brand-grad:linear-gradient(135deg,#8b5cf6,#6d3df0);
  --green:#2bbd6e; --green-d:#23a35d; --blue:#28a4f0; --blue-d:#1e96dd;
  --ink:#1f2430; --ink-2:#4b5563; --ink-3:#8a94a6; --line:#eceff3; --bg:#f5f7fa; --card:#ffffff;
  --radius:16px; --shadow:0 6px 24px rgba(31,36,48,.06); --shadow-sm:0 2px 10px rgba(31,36,48,.05);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.75;font-size:16px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1040px;margin:0 auto;padding:0 16px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--brand);white-space:nowrap}
.brand img{width:34px;height:34px;border-radius:9px}
.nav{display:flex;gap:4px;margin-left:8px;flex:1;flex-wrap:wrap}
.nav a{padding:8px 13px;border-radius:10px;font-size:15px;color:var(--ink-2);transition:.2s}
.nav a:hover,.nav a.active{color:var(--brand);background:#f1ecff}
.header-dl{flex-shrink:0}
.menu-toggle{display:none}
.menu-btn{display:none;align-items:center;justify-content:center;flex-direction:column;gap:5px;width:42px;height:42px;margin-left:auto;flex:none;cursor:pointer;border-radius:10px}
.menu-btn span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;cursor:pointer;font-size:15px;font-weight:600;border-radius:12px;padding:12px 22px;transition:.2s;color:#fff}
.btn-green{background:var(--green)} .btn-green:hover{background:var(--green-d);transform:translateY(-1px)}
.btn-blue{background:var(--blue)} .btn-blue:hover{background:var(--blue-d);transform:translateY(-1px)}
.btn-brand{background:var(--brand-grad)} .btn-brand:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-lg{padding:14px 28px;font-size:16px}
.icon{width:18px;height:18px;flex:none}

/* breadcrumb */
.crumb{padding:14px 0 4px;font-size:13px;color:var(--ink-3)}
.crumb a{color:var(--ink-3)} .crumb a:hover{color:var(--brand)} .crumb .sep{margin:0 7px}

/* hero */
.hero{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);margin-top:14px;padding:26px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;background:radial-gradient(circle,#efe8ff,transparent 70%);pointer-events:none}
.hero-top{display:flex;gap:20px;align-items:flex-start;position:relative;z-index:1}
.app-icon{width:92px;height:92px;border-radius:22px;box-shadow:0 8px 20px rgba(124,78,240,.28);flex:none}
.hero-info{flex:1;min-width:0}
.app-name{font-size:26px;font-weight:800;line-height:1.3;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tag-act{font-size:12px;background:linear-gradient(135deg,#ffe08a,#ffb34d);color:#7a4b00;font-weight:700;padding:3px 10px;border-radius:20px;white-space:nowrap}
.meta{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:10px;color:var(--ink-2);font-size:14px}
.meta span{display:inline-flex;align-items:center;gap:6px}
.meta .safe{color:var(--green);font-weight:600}
.buttons{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:20px;position:relative;z-index:1}
.desc{margin-top:18px;color:var(--ink-2);font-size:15px}
.rate{display:flex;flex-wrap:wrap;gap:8px 26px;margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:14px;color:var(--ink-2)}
.rate b{color:var(--brand)}
.rate .stars{color:#f6b100;letter-spacing:1px}
.dl-note{font-size:12px;color:var(--ink-3);margin-top:10px;position:relative;z-index:1}
.dl-note a{color:var(--blue)}

/* sections */
main{padding-bottom:40px}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:24px 26px;margin-top:18px}
.sec-title{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;margin-bottom:6px}
.sec-title::before{content:"";width:5px;height:20px;border-radius:3px;background:var(--brand-grad)}
.sec-sub{color:var(--ink-3);font-size:13px;margin-bottom:16px}
h3{font-size:17px;font-weight:700;margin:22px 0 8px}
h3 .mark,li strong,.p strong{color:var(--brand)}
p{margin:10px 0;color:var(--ink-2)}
.article p{color:var(--ink-2)}
ul.plain{list-style:none;display:grid;gap:9px;margin-top:12px}
ul.plain li{position:relative;padding-left:24px;color:var(--ink-2)}
ul.plain li::before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700}

/* screenshots */
.shots{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:16px}
.shots--lg{grid-template-columns:repeat(2,1fr);gap:18px}
.shot{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.shot img{width:100%;height:auto;display:block;cursor:zoom-in;transition:transform .2s}
.shot img:hover{transform:scale(1.015)}
.shot figcaption{padding:11px 14px;font-size:14px;color:var(--ink-2);background:#fcfcfd;border-top:1px solid var(--line);display:flex;align-items:center;gap:7px}
.shot figcaption::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--brand);flex:none}

/* version */
.ver{position:relative;padding-left:26px;margin-top:18px}
.ver::before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;background:var(--line)}
.ver-item{position:relative;padding-bottom:20px}
.ver-item:last-child{padding-bottom:0}
.ver-item::before{content:"";position:absolute;left:-24px;top:7px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid var(--brand)}
.ver-t{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.ver-v{font-weight:800;color:var(--brand);font-size:16px}
.ver-date{font-size:12px;color:var(--ink-3)}
.ver-item ul{margin-top:6px;padding-left:18px;color:var(--ink-2)} 
.ver-item li{margin:3px 0}

/* details */
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;margin-top:16px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.detail-item{display:flex;gap:16px;padding:15px 20px}
.detail-item:nth-child(odd){border-right:1px solid var(--line)}
.detail-item:nth-child(-n+8){border-bottom:1px solid var(--line)}
.detail-item dt{width:86px;flex:none;color:var(--ink-3);font-size:14px}
.detail-item dd{color:var(--ink);font-weight:600;font-size:14px}
.detail-item dd a{color:var(--blue)}

/* news */
.news{list-style:none;margin-top:14px}
.news li{display:flex;gap:14px;padding:13px 0;border-bottom:1px dashed var(--line)}
.news li:last-child{border-bottom:0}
.news .date{flex:none;font-size:13px;color:var(--ink-3);width:96px;font-variant-numeric:tabular-nums}
.news .txt{color:var(--ink-2)} .news .txt b{color:var(--ink)}

/* reviews */
.reviews{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}
.review{background:#fafbfc;border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.review-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.review-head img{width:38px;height:38px;border-radius:50%}
.review-name{font-weight:700;font-size:14px}
.review-role{font-size:12px;color:var(--ink-3)}
.review .stars{color:#f6b100;font-size:13px;margin-left:auto}
.review p{font-size:14px;margin:0;color:var(--ink-2)}

/* tags */
.tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.tags a{background:#f3f1fb;color:#6a4bd8;font-size:14px;font-weight:600;padding:8px 16px;border-radius:20px;border:1px solid transparent;transition:.2s}
.tags a:hover{background:#e8e2fc;border-color:#cdbff5}

/* download block */
.dl-block{background:linear-gradient(135deg,#8b5cf6,#6d3df0);color:#fff;border-radius:var(--radius);padding:30px 26px;margin-top:18px;text-align:center}
.dl-block h2{color:#fff;font-size:22px;font-weight:800;margin-bottom:8px}
.dl-block p{color:#efeaff;font-size:15px;margin:0 0 18px}
.dl-block .btn{background:#fff;color:#6d3df0}
.dl-block .btn:hover{transform:translateY(-1px)}
.dl-extra{margin-top:14px;font-size:13px;color:#e6ddff}
.dl-extra a{color:#fff;text-decoration:underline}

/* faq */
.faq-item{padding:16px 0;border-bottom:1px dashed var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item h3{margin:0 0 6px}
.faq-item p{margin:0}

/* footer */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:26px 0;margin-top:28px}
.footer-inner{font-size:13px;color:var(--ink-3);text-align:center;line-height:2}
.footer-inner a{color:var(--ink-3)} .footer-inner a:hover{color:var(--brand)}

/* responsive */
@media(max-width:760px){
  .header-inner{height:58px}
  .nav{display:none}
  .menu-btn{display:flex}
  #menu-toggle:checked ~ .nav{display:flex;flex-direction:column;gap:2px;position:absolute;top:100%;left:0;right:0;background:var(--card);box-shadow:0 12px 24px rgba(31,36,48,.10);border-top:1px solid var(--line);padding:8px 12px 14px;margin:0;z-index:60}
  #menu-toggle:checked ~ .nav a{display:block;padding:13px 14px;font-size:15px;border-radius:10px}
  #menu-toggle:checked ~ .menu-btn span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  #menu-toggle:checked ~ .menu-btn span:nth-child(2){opacity:0}
  #menu-toggle:checked ~ .menu-btn span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .hero{padding:20px 18px}
  .hero-top{flex-direction:row;align-items:flex-start;text-align:left;gap:14px}
  .app-icon{width:64px;height:64px;border-radius:15px}
  .hero-info{flex:1;min-width:0}
  .tag-act{font-size:11px;padding:2px 9px}
  .meta{margin-top:9px;gap:6px 14px;font-size:12.5px;justify-content:flex-start}
  .buttons{grid-template-columns:1fr 1fr;gap:10px}
  .buttons .btn{font-size:14px;padding:12px 8px}
  .shots{grid-template-columns:repeat(2,1fr);gap:12px;margin-right:0;overflow:visible;scroll-snap-type:none;padding-bottom:0}
  .shot{scroll-snap-align:none}

  .detail-grid{grid-template-columns:1fr}
  .detail-item{border-right:none!important}
  .reviews{grid-template-columns:1fr}
  .card{padding:20px 18px}
  .app-name{font-size:20px}
}






/* back to top */
.to-top{position:fixed;right:18px;bottom:26px;width:48px;height:48px;border-radius:14px;background:var(--brand-grad);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(124,78,240,.35);border:0;cursor:pointer;opacity:0;transform:translateY(14px);pointer-events:none;transition:opacity .25s,transform .25s;z-index:70}
.to-top.show{opacity:1;transform:translateY(0);pointer-events:auto}
.to-top svg{width:22px;height:22px}
@media(max-width:520px){ .to-top{right:14px;bottom:20px;width:44px;height:44px} }


/* lightbox */
.lightbox{position:fixed;inset:0;background:rgba(9,11,18,.86);display:flex;align-items:center;justify-content:center;z-index:100;opacity:0;pointer-events:none;transition:opacity .25s;cursor:zoom-out}
.lightbox.open{opacity:1;pointer-events:auto}
.lightbox img{max-width:92vw;max-height:88vh;border-radius:12px;box-shadow:0 24px 70px rgba(0,0,0,.55);background:#fff}
.lightbox .lb-close{position:absolute;top:16px;right:20px;width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.14);color:#fff;font-size:28px;line-height:44px;text-align:center;cursor:pointer;border:0;transition:.2s}
.lightbox .lb-close:hover{background:rgba(255,255,255,.28)}
@media(max-width:520px){ .lightbox img{max-width:96vw;max-height:90vh} }