:root{
  --green:#08c261; --green-d:#06a852; --green-soft:#e9f9f0;
  --bg:#f5f6f8; --card:#fff; --text:#1a1a1a;
  --muted:#8c8c8c; --line:#e8eaed; --radius:12px;
  --shadow:0 1px 2px rgba(0,0,0,.04),0 4px 16px rgba(0,0,0,.04);
  --shadow-lg:0 8px 28px rgba(0,0,0,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.45;-webkit-tap-highlight-color:transparent;min-height:100vh}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}

/* ===== Topbar (sj.qq-like sticky) ===== */
.topbar{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.topbar-inner{max-width:1120px;margin:0 auto;padding:10px 14px;display:flex;align-items:center;gap:12px}
.logo{display:flex;align-items:center;gap:8px;flex-shrink:0;font-weight:700}
.logo-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(145deg,#1ec97a,var(--green-d));color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:16px;box-shadow:0 2px 8px rgba(8,194,97,.35)}
.logo-text{font-size:17px;letter-spacing:.3px}
.logo-sub{display:none;font-size:12px;color:var(--muted);font-weight:400;margin-left:2px}
.search{flex:1;display:flex;align-items:center;background:#f2f3f5;border-radius:22px;overflow:hidden;min-width:0;border:1px solid transparent;transition:border-color .15s,background .15s}
.search:focus-within{background:#fff;border-color:#c6efd7;box-shadow:0 0 0 3px rgba(8,194,97,.12)}
.search input{flex:1;border:0;background:transparent;padding:9px 14px;font-size:14px;outline:none;min-width:0}
.search button{border:0;background:var(--green);color:#fff;padding:0 16px;height:36px;font-size:14px;font-weight:600;cursor:pointer;flex-shrink:0}
.search button:hover{background:var(--green-d)}
.nav{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-link{font-size:13px;color:#555;white-space:nowrap}
.nav-link:hover{color:var(--green-d)}
.nav-btn{background:var(--green);color:#fff!important;padding:6px 14px;border-radius:16px;font-size:13px;font-weight:600;white-space:nowrap;box-shadow:0 2px 6px rgba(8,194,97,.25)}
.nav-btn:hover{background:var(--green-d)}
.nav-uid{display:none;font-size:12px;color:var(--muted)}

.wrap{max-width:1120px;margin:0 auto;padding:12px 12px 28px}

/* ===== Hero featured ===== */
.hero{background:linear-gradient(135deg,#1ec97a 0%,#0bb35f 48%,#0899c2 100%);border-radius:16px;padding:18px 16px;color:#fff;margin-bottom:14px;position:relative;overflow:hidden;box-shadow:var(--shadow-lg)}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 85% 20%,rgba(255,255,255,.22),transparent 55%);pointer-events:none}
.hero::after{content:"";position:absolute;right:-36px;top:-48px;width:180px;height:180px;border-radius:50%;background:rgba(255,255,255,.1)}
.hero-kicker{font-size:12px;opacity:.92;margin-bottom:10px;position:relative;z-index:1;letter-spacing:.5px}
.feat{display:flex;gap:14px;align-items:center;position:relative;z-index:1}
.feat-icon{width:72px;height:72px;border-radius:16px;background:#fff;object-fit:cover;flex-shrink:0;box-shadow:0 6px 18px rgba(0,0,0,.18)}
.feat-body{flex:1;min-width:0}
.feat-name{font-size:20px;font-weight:700;margin-bottom:4px}
.feat-desc{font-size:13px;opacity:.94;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.feat-meta{font-size:12px;opacity:.82;margin-top:6px}
.btn-dl{display:inline-flex;align-items:center;justify-content:center;height:34px;padding:0 18px;border-radius:17px;font-size:14px;font-weight:700;border:0;cursor:pointer;white-space:nowrap;transition:transform .12s,box-shadow .12s,background .12s}
.btn-dl:active{transform:scale(.97)}
.btn-dl.white{background:#fff;color:var(--green-d);box-shadow:0 2px 8px rgba(0,0,0,.12)}
.btn-dl.white:hover{box-shadow:0 4px 12px rgba(0,0,0,.16)}
.btn-dl.green{background:var(--green);color:#fff;box-shadow:0 2px 8px rgba(8,194,97,.3)}
.btn-dl.green:hover{background:var(--green-d)}
.btn-dl.dark{background:#111;color:#fff}
.btn-dl.ghost{background:#fff;color:var(--green-d);border:1px solid var(--green)}
.btn-dl.ghost:hover{background:var(--green-soft)}
.btn-dl.disabled{background:#e8e8e8;color:#999;box-shadow:none;cursor:default}

/* ===== Sections ===== */
.sec{background:var(--card);border-radius:14px;margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow)}
.sec-hd{display:flex;align-items:center;justify-content:space-between;padding:14px 14px 8px}
.sec-hd h2{font-size:16px;font-weight:700}
.sec-hd .more{font-size:12px;color:var(--muted)}
.sec-hd .more:hover{color:var(--green-d)}

.app-row{display:flex;align-items:center;gap:12px;padding:12px 14px;border-top:1px solid #f3f4f6}
.app-row:first-of-type{border-top:0}
.app-row .rank{width:22px;flex-shrink:0;font-size:15px;font-weight:700;color:#bbb;text-align:center}
.app-row:nth-child(-n+3) .rank{color:#ff6a00}
.app-row .icon{width:56px;height:56px;border-radius:12px;object-fit:cover;background:#f0f0f0;flex-shrink:0;box-shadow:0 1px 4px rgba(0,0,0,.06)}
.app-row .info{flex:1;min-width:0}
.app-row .name{font-size:15px;font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.app-row .sub{font-size:12px;color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.app-row .meta{font-size:11px;color:#aaa;margin-top:2px}
.app-row .btn-dl{flex-shrink:0}

.app-grid{display:none;padding:4px 14px 14px;gap:12px}
.app-card{background:#fafbfc;border:1px solid var(--line);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:8px;transition:box-shadow .15s,transform .15s}
.app-card:hover{box-shadow:var(--shadow);transform:translateY(-1px)}
.app-card .icon{width:64px;height:64px;border-radius:14px;object-fit:cover;background:#eee}
.app-card .name{font-size:15px;font-weight:650}
.app-card .sub{font-size:12px;color:var(--muted);min-height:34px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.app-card .btn-dl{align-self:flex-start;margin-top:auto}

/* ===== Detail (sj.qq appdetail polish) ===== */
.detail{background:var(--card);border-radius:14px;padding:16px;box-shadow:var(--shadow)}
.detail-head{display:flex;gap:14px;align-items:flex-start}
.detail-icon{width:84px;height:84px;border-radius:18px;object-fit:cover;background:#eee;flex-shrink:0;box-shadow:0 4px 14px rgba(0,0,0,.08)}
.detail-meta{flex:1;min-width:0}
.detail-meta h1{font-size:20px;margin-bottom:4px;font-weight:700;line-height:1.3}
.detail-meta .dev{color:var(--green-d);font-size:13px;font-weight:500}
.detail-meta .tags{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0;font-size:12px;color:var(--muted)}
.detail-meta .tags span{background:#f3f4f6;padding:3px 10px;border-radius:10px;color:#666}
.detail-meta .pkg{font-size:12px;color:#999;word-break:break-all;margin-top:2px}
.dl-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.detail-card{border-top:1px solid var(--line);padding-top:14px;margin-top:14px}
.detail-card h2{font-size:15px;margin-bottom:8px;font-weight:700}
.detail-card .lead{color:#555;font-size:14px;margin-bottom:8px;font-weight:500}
.detail-card .desc{color:#444;font-size:14px;line-height:1.65}
.link-list{list-style:none;font-size:13px}
.link-list li{margin:10px 0;padding:10px 12px;background:#f7f8fa;border-radius:10px;word-break:break-all}
.link-list span{display:block;color:var(--muted);margin-bottom:4px;font-size:12px}
.link-list a{color:var(--green-d);font-weight:500}
.link-list a:hover{text-decoration:underline}
.back{margin-top:16px;font-size:14px}
.back a{color:var(--green-d);font-weight:500}
.detail-sticky{display:none}

.empty{background:#fff;border-radius:12px;padding:36px 14px;text-align:center;color:var(--muted);box-shadow:var(--shadow)}
.alert{padding:10px 12px;border-radius:8px;margin-bottom:12px;font-size:14px}
.alert.ok{background:#e8f8ef;color:#067a3e}
.alert.bad{background:#fdeeee;color:#a33}
.card-form{background:#fff;border-radius:12px;padding:16px;display:grid;gap:12px}
.card-form label{display:grid;gap:6px;font-size:13px;color:#444}
.card-form input,.card-form textarea{border:1px solid #e5e7eb;border-radius:8px;padding:9px 11px;font-size:14px}
.card-form input:focus,.card-form textarea:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(8,194,97,.12)}
.muted{color:var(--muted);font-size:12px}

.foot{background:#fff;border-top:1px solid var(--line);margin-top:8px}
.foot-inner{max-width:1120px;margin:0 auto;padding:16px 14px 24px;font-size:12px;color:var(--muted)}
.friend{display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center;margin-bottom:8px}
.friend>span{color:#aaa}
.friend a{color:#555}
.friend a:hover{color:var(--green-d)}

/* Horizontal scroll (sj.qq 精选) */
.hscroll{display:flex;gap:14px;overflow-x:auto;-webkit-overflow-scrolling:touch;padding:4px 14px 16px;scrollbar-width:thin}
.hscroll::-webkit-scrollbar{height:4px}
.hscroll::-webkit-scrollbar-thumb{background:#ddd;border-radius:2px}
.hitem{flex:0 0 auto;width:76px;text-align:center}
.hitem .icon{width:64px;height:64px;border-radius:14px;margin:0 auto 6px;object-fit:cover;background:#f0f0f0;box-shadow:0 2px 8px rgba(0,0,0,.06)}
.hitem .name{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:6px}
.hitem .btn-dl{height:28px;padding:0 12px;font-size:12px;border-radius:14px}
.hero-empty{color:#fff}
.hero-empty h1{font-size:22px;margin:6px 0}
.dl-row-pc{display:flex}

/* ===== PC (>=768) ===== */
@media(min-width:768px){
  .topbar-inner{padding:12px 24px;gap:18px}
  .logo-text{font-size:18px}
  .logo-sub{display:inline}
  .nav-uid{display:inline}
  .search{max-width:520px}
  .wrap{padding:20px 24px 48px}
  .hero{padding:28px 32px;border-radius:18px;margin-bottom:18px}
  .feat{gap:20px}
  .feat-icon{width:96px;height:96px;border-radius:22px}
  .feat-name{font-size:26px}
  .feat-desc{font-size:14px;white-space:normal}
  .btn-dl{height:38px;padding:0 22px;font-size:15px}
  .sec{margin-bottom:16px;border-radius:16px}
  .sec-hd{padding:18px 20px 10px}
  .sec-hd h2{font-size:18px}
  .sec.sec-all .app-list{display:none}
  .sec.sec-all .app-grid{display:grid;grid-template-columns:repeat(4,1fr)}
  .app-row{padding:14px 20px;gap:14px}
  .app-row .icon{width:60px;height:60px;border-radius:14px}
  .detail{padding:28px;border-radius:16px}
  .detail-head{gap:20px}
  .detail-icon{width:112px;height:112px;border-radius:24px}
  .detail-meta h1{font-size:26px}
  .detail-meta .tags span{font-size:13px;padding:4px 12px}
  .detail-card{padding-top:18px;margin-top:18px}
  .detail-card h2{font-size:16px}
  .detail-sticky{display:none!important}
  .hitem{width:96px}
  .hitem .icon{width:76px;height:76px;border-radius:18px}
  .hscroll{padding:8px 20px 20px;gap:20px}
  .dl-row-pc{display:flex}
  .foot-inner{padding:20px 24px 32px}
}
@media(min-width:1100px){
  .sec.sec-all .app-grid{grid-template-columns:repeat(5,1fr)}
}

/* mobile sticky download on detail */
@media(max-width:767px){
  .nav-link{display:none}
  .dl-row-pc{display:none}
  .detail-sticky{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:30;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-top:1px solid var(--line);padding:10px 12px calc(10px + env(safe-area-inset-bottom));gap:8px;box-shadow:0 -4px 20px rgba(0,0,0,.06)}
  .detail-sticky .btn-dl{flex:1;height:44px;border-radius:22px;font-size:15px}
  .detail{padding-bottom:80px}
  .foot{padding-bottom:8px}
}

/* ===== Platform tabs (手机应用 / 电脑软件) ===== */
.plat-tabs{display:flex;align-items:center;gap:8px;margin:0 0 12px;padding:4px;background:#fff;border-radius:12px;box-shadow:var(--shadow);flex-wrap:wrap}
.plat-tab{flex:1;text-align:center;padding:10px 12px;border-radius:10px;font-size:14px;font-weight:650;color:#555;min-width:100px}
.plat-tab.on{background:var(--green);color:#fff;box-shadow:0 2px 8px rgba(8,194,97,.28)}
.plat-tab:not(.on):hover{background:var(--green-soft);color:var(--green-d)}
.plat-add{margin-left:auto;font-size:13px;font-weight:600;color:var(--green-d);padding:8px 12px;white-space:nowrap}
.plat-add:hover{text-decoration:underline}
.plat-tabs-form{box-shadow:none;border:1px solid var(--line)}
.hero-pc{background:linear-gradient(135deg,#3b82f6 0%,#0899c2 45%,#08c261 100%)}
.hero-pc h1{font-size:22px;margin:6px 0 8px;position:relative;z-index:1}
.hero-pc p{font-size:14px;opacity:.94;position:relative;z-index:1;max-width:520px}
@media(min-width:768px){
  .plat-tabs{margin-bottom:16px;padding:6px}
  .plat-tab{font-size:15px;padding:12px 16px}
  .hero-pc h1{font-size:26px}
}
@media(max-width:767px){
  .plat-add{width:100%;text-align:center;margin:0;padding-bottom:10px}
}

/* ===== PC multi-OS chips & buttons ===== */
.os-chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 12px;padding:0 2px}
.os-chip-btn{display:inline-block;padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;background:#fff;border:1px solid var(--line);color:#444;box-shadow:var(--shadow)}
.os-chip-btn.on{background:var(--green);color:#fff;border-color:var(--green)}
.os-chip-btn:not(.on):hover{background:var(--green-soft);color:var(--green-d)}
.os-chip{display:inline-block;margin-left:6px;padding:2px 8px;border-radius:999px;background:#eef6ff;color:#1d4ed8;font-size:12px}
.os-btns{display:flex;flex-wrap:wrap;gap:6px;justify-content:flex-end;align-items:center}
.btn-os{font-size:12px!important;padding:0 10px!important;height:30px!important;border-radius:15px!important;white-space:nowrap}
.app-row .row-dl,.app-card .row-dl{flex-shrink:0}
.app-card .os-btns{justify-content:center;margin-top:6px}
.hitem .os-btns{justify-content:center;flex-direction:column;gap:4px}
.hitem .btn-os{width:100%;padding:0 6px!important;font-size:11px!important}
.os-fieldset{border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin:10px 0 14px;background:#fafbfc}
.os-fieldset legend{font-size:14px;font-weight:650;padding:0 6px}
.os-grid{display:flex;flex-direction:column;gap:10px}
.os-opt{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:600}
.os-opt input[type=text],.os-opt input:not([type=checkbox]){font-weight:400;width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:10px;font-size:14px}
.pc-ver-wrap{display:flex;flex-direction:column;gap:16px}
.pc-ver-os h3{font-size:15px;margin:0 0 8px}
.pc-ver-list li{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:8px 0;border-bottom:1px dashed var(--line)}
.pc-ver-list .pc-url{flex:1 1 100%;font-size:12px;color:#64748b;word-break:break-all}
.ver-new{font-style:normal;font-size:11px;background:#dcfce7;color:#166534;padding:2px 6px;border-radius:6px}
.ver-old{font-style:normal;font-size:11px;background:#f1f5f9;color:#64748b;padding:2px 6px;border-radius:6px}
.dl-row-pc{flex-wrap:wrap;gap:8px}
@media(max-width:767px){
  .detail-sticky{flex-wrap:wrap}
  .detail-sticky .btn-os{flex:1 1 40%}
  .app-row .os-btns{max-width:140px}
}