:root{
 --bg:#f5f6f8; --surface:#fff; --surface-2:#fbfcfe; --line:#e7e9ef; --line-2:#eef0f5;
 --ink:#1d1d1f; --ink-2:#4a4f60; --ink-3:#5b6273; --accent:#0b69ff; --accent-press:#0a5ae0;
 --star:#ff9f0a; --shadow:0 1px 2px rgba(17,24,39,.04),0 8px 24px rgba(17,24,39,.06);
 --shadow-lg:0 8px 30px rgba(17,24,39,.12); --r:14px; --r-lg:20px; --maxw:1140px;
 --font:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,'Apple Color Emoji',sans-serif;
}
@media (prefers-color-scheme:dark){:root{
 --bg:#0b0d12; --surface:#14171f; --surface-2:#181c26; --line:#262b38; --line-2:#222734;
 --ink:#f2f4f8; --ink-2:#bcc4d6; --ink-3:#a0a9bd; --accent:#4d9bff; --accent-press:#6aacff;
 --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35); --shadow-lg:0 10px 36px rgba(0,0,0,.5);
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media(-webkit-min-device-pixel-ratio:2),(min-resolution:2dppx){.foot,.card,hr,.bc{border-width:.5px}}  /* #10 0.5px hairline */
.btn-find{background:var(--ink-2)}  /* 非权威官方: 商店搜索, 视觉弱于 Get */
.unverified{display:inline-block;font-size:12px;color:var(--ink-3);margin-left:8px}
.unverified.nodl{margin-left:0}
.btn,button,.dl-btn,a.chip{transition:transform .08s ease}
.btn:active,button:active,.dl-btn:active{transform:scale(.98)}  /* #17 压感 */
#toTop{position:fixed;right:18px;bottom:18px;width:42px;height:42px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;box-shadow:0 4px 16px rgba(0,0,0,.18);opacity:0;visibility:hidden;transition:opacity .25s,transform .25s;transform:translateY(8px);z-index:60;border:none;cursor:pointer;padding-bottom:env(safe-area-inset-bottom)}
#toTop.show{opacity:1;visibility:visible;transform:translateY(0)}  /* #35 返回顶部 */
.skip-link{position:absolute;left:8px;top:-48px;z-index:100;background:var(--accent);color:#fff;padding:10px 18px;border-radius:0 0 10px 10px;font-weight:650;transition:top .15s}
.skip-link:focus{top:0;text-decoration:none;outline:3px solid #fff;outline-offset:-3px}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.55;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;min-height:100dvh;display:flex;flex-direction:column}
main{flex:1 0 auto}  /* #9 footer 吸底: 内容不足一屏页脚也贴底 */
body{padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}  /* #94 安全区 */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3{letter-spacing:-.02em;color:var(--ink);margin:0}
img{max-width:100%}
:focus-visible{outline:2.5px solid var(--accent);outline-offset:2px;border-radius:6px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* header (frosted) */
.hdr{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--surface) 82%,transparent);backdrop-filter:saturate(180%) blur(18px);-webkit-backdrop-filter:saturate(180%) blur(18px);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;gap:18px;height:60px}
.brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:19px;letter-spacing:-.02em;color:var(--ink)}
.brand:hover{text-decoration:none}.logo{display:block;border-radius:9px;flex:none}
.search{flex:1;max-width:520px;position:relative;display:flex;align-items:center}
.search .si{position:absolute;left:13px;width:18px;height:18px;stroke:var(--ink-3);fill:none;stroke-width:2;stroke-linecap:round}
.search input{width:100%;height:40px;padding:0 16px 0 40px;border:1px solid var(--line);border-radius:999px;background:var(--surface-2);color:var(--ink);font-size:14.5px}
.search input::placeholder{color:var(--ink-3)}
.search input:focus{outline:none;border-color:var(--accent);background:var(--surface);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 14%,transparent)}
.topnav{display:flex;gap:4px}
.topnav a{padding:8px 13px;border-radius:9px;color:var(--ink-2);font-weight:560;font-size:14.5px}
.topnav a:hover{background:var(--line-2);color:var(--ink);text-decoration:none}

/* hero */
.hero{background:radial-gradient(1200px 400px at 80% -10%,#2d8bff33,transparent),linear-gradient(135deg,#0b69ff,#00b3d6);color:#fff;padding:64px 0 56px;margin-bottom:8px}
.hero h1{font-size:clamp(30px,5vw,50px);line-height:1.07;color:#fff;letter-spacing:-.03em}
.hero p{font-size:clamp(15px,2.2vw,19px);opacity:.94;margin:16px 0 26px;max-width:640px}
.hero-search{display:flex;gap:8px;max-width:540px}
.hero-search input{flex:1;height:50px;padding:0 18px;border:0;border-radius:13px;font-size:16px;background:rgba(255,255,255,.96);color:#111}
.hero-search button{height:50px;padding:0 26px;border:0;border-radius:13px;background:#0a1f44;color:#fff;font-weight:650;font-size:15px;cursor:pointer}
.hero-search button:hover{background:#0a2a5c}

/* sections */
main section{margin:34px 0}
.sec{font-size:22px;margin-bottom:14px}
.sec-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:14px}
.sec-head .sec{margin:0}.more{font-weight:600;font-size:14px}

/* platform cards */
.plat-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.pcard{display:flex;flex-direction:column;gap:8px;padding:20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);color:var(--ink);transition:.18s}
.pcard:hover{text-decoration:none;transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:color-mix(in srgb,var(--accent) 40%,var(--line))}
.pcard b{font-size:17px}.pcard i{color:var(--ink-3);font-style:normal;font-size:13px}
.pg{width:30px;height:30px;stroke:var(--accent);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.pg.lg{width:42px;height:42px}

/* breadcrumb + headings */
.bc{display:flex;flex-wrap:wrap;gap:7px;align-items:center;font-size:13px;color:var(--ink-3);margin:22px 0 6px}
.bc a{color:var(--ink-3)}.bc a:hover{color:var(--accent)}.bc span{opacity:.5}
.page-h1{font-size:30px;margin:6px 0 14px}
.h1-plat{font-weight:500;color:var(--ink-3)}
.phead{display:flex;align-items:center;gap:16px;margin:10px 0 22px}.phead h1{font-size:28px}
.intro{color:var(--ink-2);background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px 20px;max-width:860px;box-shadow:var(--shadow);margin-bottom:8px}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:8px 15px;font-size:14px;color:var(--ink-2);font-weight:560;transition:.15s}
.chip:hover{border-color:var(--accent);color:var(--accent);text-decoration:none;background:color-mix(in srgb,var(--accent) 7%,var(--surface))}
.chip i{color:var(--ink-3);font-style:normal;font-size:12px;margin-left:5px}

/* app grid + cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(248px,1fr));gap:14px;margin:14px 0}
.card{display:flex;gap:13px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:14px;color:inherit;transition:.16s}
.card:hover{text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--line)}
.ico{flex:none}.ava{width:56px;height:56px;display:block;border-radius:14px;object-fit:cover;background:var(--line-2)}
.ci{display:flex;flex-direction:column;min-width:0;gap:3px}
.nm{font-weight:650;color:var(--ink);font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ds{color:var(--ink-2);font-size:13px;line-height:1.4;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.meta-row{display:flex;align-items:center;gap:8px;margin-top:2px}
.rt{display:inline-flex;align-items:center;gap:3px;color:var(--ink-2);font-size:12.5px;font-weight:600}
.star{width:13px;height:13px;fill:var(--star)}
.plat-tag{font-size:11.5px;color:var(--ink-3);background:var(--line-2);padding:2px 8px;border-radius:6px;font-weight:600}

/* app detail */
.app-hero{display:flex;gap:22px;align-items:center;padding:8px 0 22px}
.ico.xl .ava{width:112px;height:112px;border-radius:26px;box-shadow:var(--shadow)}
.app-hd h1{font-size:30px}.app-hd .muted{margin:6px 0 16px}
.report-line{margin:6px 0 0}.report{font-size:12px;color:var(--ink-3)}.report:hover{color:var(--bad)}
.cta-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;min-width:150px;height:46px;padding:0 26px;background:var(--accent);color:#fff;border-radius:980px;font-weight:650;font-size:15.5px;letter-spacing:.01em;transition:.15s}
.btn:hover{background:var(--accent-press);text-decoration:none;transform:translateY(-1px)}
.btn:active{transform:translateY(0) scale(.98)}
.verified{display:inline-flex;align-items:center;gap:6px;color:var(--ink-2);font-size:13.5px;font-weight:560}
.chk{width:17px;height:17px;stroke:#1db954;fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.stat-strip{display:flex;gap:10px;flex-wrap:wrap;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:16px 0;margin:6px 0 22px}
.stat{flex:1;min-width:90px;display:flex;flex-direction:column;gap:2px}
.stat b{font-size:18px;color:var(--ink)}.stat i{font-style:normal;font-size:12px;color:var(--ink-3);text-transform:uppercase;letter-spacing:.05em}
.panel{margin:22px 0}.panel h2{font-size:20px;margin-bottom:10px}
.shot-strip{display:flex;gap:12px;overflow-x:auto;padding:4px 2px 12px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.shot-strip::-webkit-scrollbar{height:8px}.shot-strip::-webkit-scrollbar-thumb{background:var(--line);border-radius:8px}
.shot{flex:0 0 auto;scroll-snap-align:start;display:block;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--card);line-height:0}
.shot img{height:340px;aspect-ratio:1052/592;width:auto;max-width:none;display:block;object-fit:cover;background:var(--card)}
.shot-src{font-size:12px;margin-top:6px}
@media (max-width:640px){.shot img{height:260px}}
.vs-head{display:grid;grid-template-columns:1fr auto 1fr;align-items:start;gap:14px;margin:14px 0 6px}
.vs-side{text-align:center;min-width:0;text-decoration:none;color:inherit}
.vs-side .ava{width:72px;height:72px;border-radius:18px;margin:0 auto}
.vs-side b{display:block;font-size:17px;margin-top:8px;overflow-wrap:anywhere;color:var(--ink)}
.vs-side i{font-style:normal;color:var(--ink-3);font-size:12.5px}
.vs-mid{font-size:22px;font-weight:800;color:var(--ink-3);align-self:center}
.verdict{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px 20px;margin:16px 0}
.verdict h2{margin:0 0 6px;font-size:18px}
.cmp-tbl{overflow-x:auto;-webkit-overflow-scrolling:touch}
.cmp-tbl table{width:100%;border-collapse:collapse;font-size:14px;table-layout:fixed}
.cmp-tbl th,.cmp-tbl td{padding:10px 8px;border-bottom:1px solid var(--line-2);text-align:left;vertical-align:top;word-break:break-word}
.cmp-tbl thead th{color:var(--ink);font-weight:700}
.cmp-tbl tbody th{color:var(--ink-3);font-weight:500;font-size:12.5px;width:32%}
.cmp-tbl td.win{background:rgba(52,168,83,.12);font-weight:600}
.cmp-tbl td.win::after{content:"¹3";color:#1a7f37;margin-left:5px}
[dir=rtl] .cmp-tbl th,[dir=rtl] .cmp-tbl td{text-align:right}
.dual-cta{display:flex;gap:12px;flex-wrap:wrap;margin:16px 0}
.two-shot{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.two-shot>div{min-width:0}
.cmp-chips{display:flex;flex-wrap:wrap;gap:8px}
.cmp-chip{display:inline-block;padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:var(--card);font-size:13px;color:var(--ink-2);text-decoration:none}
.cmp-chip:hover{border-color:var(--accent);color:var(--ink)}
.fbform{max-width:640px;display:flex;flex-direction:column;gap:12px;margin:16px 0}
.fbform textarea,.fbform input[type=text]{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--card);color:var(--ink);font:inherit;font-size:15px}
.fbform textarea{resize:vertical;min-height:130px}
.fbform textarea:focus,.fbform input:focus{outline:2px solid var(--accent);border-color:var(--accent)}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0}
.fbform .btn{align-self:flex-start}
.fbmsg{margin:4px 0 0;font-size:14px;min-height:20px}
.fbmsg.ok{color:#1a7f37;font-weight:600}
.fbmsg.err{color:#c0392b}
.urate .ustars{display:inline-flex;gap:4px;margin:2px 0 8px}
.ust{font-size:30px;line-height:1;background:none;border:0;cursor:pointer;color:var(--line-2);padding:0 2px;transition:color .12s,transform .12s}
.ust:hover{transform:scale(1.15)}
.ust.on{color:#f5a623}
.urate-meta{font-size:14px;margin:0}
.sa-wrap{max-width:720px}
.sa-hero{margin:22px 0 42px}
.sa-wrap .page-h1{font-size:48px;line-height:1.07;font-weight:700;letter-spacing:-.021em;margin:0 0 16px}
.sa-lead{color:var(--ink-2);font-size:19px;line-height:1.5;max-width:600px;margin:0 0 22px;font-weight:400}
.sa-badges{display:flex;flex-wrap:wrap;gap:8px}
.sa-badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--ink-2);background:transparent;border:1px solid var(--line);border-radius:980px;padding:6px 14px}
.sa-badge svg{width:13px;height:13px;color:#1a7f37;flex:none}
.saform{display:flex;flex-direction:column;gap:28px}
.sa-card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:34px;display:flex;flex-direction:column;gap:24px;box-shadow:0 2px 18px rgba(0,0,0,.05)}
.sa-num{display:none}
.sa-sec{font-size:24px;font-weight:600;letter-spacing:-.01em;margin:0;color:var(--ink)}
.fld{display:flex;flex-direction:column;gap:9px;font-size:14px;font-weight:600;color:var(--ink-2)}
.fld b{color:#e5484d}
.fld i{font-style:normal;font-weight:400;color:var(--ink-3);font-size:13px}
.fld input,.fld textarea,.fld select{font-weight:400;font-size:17px;padding:13px 16px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink);font-family:inherit;transition:border-color .2s,box-shadow .2s;-webkit-appearance:none}
.fld input::placeholder,.fld textarea::placeholder{color:var(--ink-3)}
.fld input:focus,.fld textarea:focus,.fld select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 18%,transparent)}
.fld textarea{resize:vertical;min-height:96px;line-height:1.55}
.fld .hint{font-weight:400;color:var(--ink-3);font-size:13px;margin-top:2px}
.sa-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.pchips{display:flex;flex-wrap:wrap;gap:10px}
.pchip{position:relative;display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:980px;padding:10px 22px;cursor:pointer;font-weight:500;font-size:15px;color:var(--ink);user-select:none;transition:border-color .2s,background .2s,color .2s}
.pchip input{position:absolute;opacity:0;width:0;height:0}
.pchip:hover{border-color:var(--ink-3)}
.pchip:has(input:checked){border-color:var(--accent);background:var(--accent);color:#fff}
.sa-decl-card{background:var(--surface-2);box-shadow:none;border-color:transparent}
.sa-decl-card .cbx{display:flex;gap:12px;align-items:flex-start;font-weight:400;color:var(--ink-2);font-size:15px;line-height:1.5}
.sa-decl-card .cbx input{margin-top:3px;width:19px;height:19px;flex:none;accent-color:var(--accent)}
.sa-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:8px}
.sa-submit{font-size:17px;padding:14px 34px;border-radius:980px}
.sa-req{color:var(--ink-3);font-size:14px}
.wrap.doc{max-width:720px}
.doc .page-h1{font-size:44px;line-height:1.09;font-weight:700;letter-spacing:-.02em;margin:6px 0 10px}
.doc .count-line{font-size:15px;color:var(--ink-3);margin:0 0 30px}
.doc .prose{font-size:17px;line-height:1.7;color:var(--ink-2)}
.doc .prose h2{font-size:26px;font-weight:600;letter-spacing:-.01em;color:var(--ink);margin:38px 0 12px}
.doc .prose h3{font-size:20px;font-weight:600;color:var(--ink);margin:26px 0 8px}
.doc .prose p{margin:0 0 18px}
.doc .prose ul,.doc .prose ol{padding-left:22px;margin:0 0 18px}
.doc .prose li{margin:6px 0}
.doc .prose a{color:var(--accent)}
.doc .prose strong{color:var(--ink);font-weight:600}
@media(max-width:640px){.doc .page-h1{font-size:32px}.doc .prose{font-size:16px}}
.search-page .page-h1{font-size:40px;font-weight:700;letter-spacing:-.02em;text-align:center;margin:12px 0 22px}
.search-page .bc{justify-content:center}
.search-page .search-box{max-width:600px;margin:0 auto 12px}
.search-page #q{width:100%;font-size:18px;padding:15px 22px 15px 52px;border:1px solid var(--line);border-radius:980px;background:var(--card);color:var(--ink);font-family:inherit;box-shadow:0 2px 14px rgba(0,0,0,.06);transition:box-shadow .2s,border-color .2s}
.search-page #q:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 18%,transparent)}
.search-page .search-box .si{left:20px;right:auto;width:22px;height:22px}
.search-page #meta{text-align:center;margin:0 auto 22px}
.search-page .empty-state{margin:22px auto;max-width:540px;text-align:center}
.search-page .empty-state .chips{justify-content:center}
@media(max-width:640px){.search-page .page-h1{font-size:30px}.search-page #q{font-size:16px}}
@media(max-width:640px){.sa-grid{grid-template-columns:1fr}.sa-card{padding:24px 18px}.sa-wrap .page-h1{font-size:34px}}
@media(max-width:640px){.vs-side .ava{width:58px;height:58px}.vs-side b{font-size:15px}.two-shot{grid-template-columns:1fr}.dual-cta .btn{flex:1 1 100%;text-align:center}}
.body-copy{color:var(--ink-2);max-width:760px;font-size:15.5px;line-height:1.7}
/* P0 新增: CTA 下提示 + About 语言提示 */
.cta-hint{color:var(--ink-3);font-size:13px;margin:10px 0 0;max-width:560px;line-height:1.5}
.lang-note{color:var(--ink-3);font-size:12.5px;margin:-4px 0 10px;font-style:italic;background:var(--surface-2);border-left:3px solid var(--line);padding:6px 12px;border-radius:0 6px 6px 0;display:inline-block}
.empty-state{margin:22px 0;padding:28px 24px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--r);max-width:640px}
.empty-state h2{font-size:20px;margin-bottom:8px}
.empty-state .small{font-size:13px;margin:14px 0 8px}
.faq{max-width:760px}
.faq details{border:1px solid var(--line);border-radius:10px;margin:0 0 8px;background:var(--surface);overflow:hidden}
.faq details[open]{box-shadow:var(--shadow)}
.faq summary{padding:14px 18px;cursor:pointer;font-weight:560;color:var(--ink);list-style:none;font-size:15.5px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';float:right;color:var(--ink-3);font-weight:400;font-size:18px;line-height:1}
.faq details[open] summary::after{content:'−'}
.faq details p{margin:0;padding:0 18px 16px;color:var(--ink-2);font-size:14.5px;line-height:1.6}
[dir=rtl] .faq summary::after{float:left}
[dir=rtl] .lang-note{border-left:0;border-right:3px solid var(--line);border-radius:6px 0 0 6px}

/* search page */
.search-box{position:relative;display:flex;align-items:center;max-width:640px;margin:6px 0 4px}
.search-box .si{position:absolute;left:16px;width:20px;height:20px;stroke:var(--ink-3);fill:none;stroke-width:2;stroke-linecap:round}
.search-box input{width:100%;height:52px;padding:0 18px 0 46px;border:1px solid var(--line);border-radius:14px;background:var(--surface);color:var(--ink);font-size:17px}
.search-box input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 14%,transparent)}
.muted{color:var(--ink-3)}.muted2{color:var(--ink-3);font-size:14px;margin:10px 0 14px}

/* footer */
.foot{margin-top:64px;background:var(--surface);border-top:1px solid var(--line);padding:38px 0 26px}
.foot-in{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
.foot-brand{max-width:320px}.foot-brand .muted{margin-top:10px;font-size:14px}
.foot-cols{display:flex;gap:54px}
.foot-cols b{display:block;color:var(--ink);font-size:13px;margin-bottom:10px;text-transform:uppercase;letter-spacing:.06em}
.foot-cols a{display:block;color:var(--ink-2);font-size:14px;padding:4px 0}
.copy{margin-top:26px;padding-top:18px;border-top:1px solid var(--line-2);font-size:13px}

/* app pulse */
.plat-tag.hot{background:color-mix(in srgb,#ff3b30 14%,var(--surface));color:#e0352b}
@media (prefers-color-scheme:dark){.plat-tag.hot{color:#ff7a70}}
.livedot{display:inline-block;width:9px;height:9px;border-radius:50%;background:#1db954;margin-left:6px;vertical-align:middle;box-shadow:0 0 0 0 rgba(29,185,84,.6);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(29,185,84,.55)}70%{box-shadow:0 0 0 8px rgba(29,185,84,0)}100%{box-shadow:0 0 0 0 rgba(29,185,84,0)}}

/* ranked charts */
.ranklist{display:grid;grid-template-columns:repeat(2,1fr);gap:6px 22px}
.rrow{display:flex;align-items:center;gap:13px;padding:10px;border-radius:12px;color:inherit;border:1px solid transparent}
.rrow:hover{background:var(--surface);border-color:var(--line);box-shadow:var(--shadow);text-decoration:none}
.rank{width:28px;flex:none;text-align:center;font-weight:700;font-size:16px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.ico.sm .ava{width:44px;height:44px;border-radius:11px}
@media(max-width:680px){.ranklist{grid-template-columns:1fr}}

/* language switcher */
.langsw{position:relative;margin-left:6px}
.langsw>summary{list-style:none;cursor:pointer;padding:8px 12px;border-radius:9px;color:var(--ink-2);font-weight:560;font-size:14px;white-space:nowrap}
.langsw>summary::-webkit-details-marker{display:none}
.langsw>summary:hover{background:var(--line-2);color:var(--ink)}
.langmenu{position:absolute;right:0;top:120%;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);padding:6px;max-height:360px;overflow:auto;display:grid;grid-template-columns:1fr 1fr;gap:2px;min-width:320px;z-index:30}
.langmenu a{padding:8px 12px;border-radius:8px;color:var(--ink-2);font-size:14px;white-space:nowrap}
.langmenu a:hover{background:var(--line-2);text-decoration:none}.langmenu a.cur{color:var(--accent);font-weight:700}
/* RTL */
[dir=rtl] .search .si{left:auto;right:13px}
[dir=rtl] .search input{padding:0 40px 0 16px}
[dir=rtl] .search-box .si{left:auto;right:16px}
[dir=rtl] .search-box input{padding:0 46px 0 18px}
[dir=rtl] .langmenu{right:auto;left:0}
[dir=rtl] .rank{text-align:center}

/* 图标 SVG (替代 emoji): 国旗 / 趋势 / 地球 */
.icon-h2{display:inline-flex;align-items:center;gap:8px}
.flag{display:inline-block;vertical-align:middle;flex:none;border-radius:50%}
.plat-tag .ti{display:inline-block;vertical-align:-1px;margin-right:2px}
.gi{display:inline-block;vertical-align:middle}

/* 跨平台关联 (Also available on) */
.cross-plat .muted{margin:6px 0 14px;font-size:14px}
.plat-cards.small{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px}
.plat-cards.small .pcard{padding:14px 16px;gap:6px}
.plat-cards.small .pcard b{font-size:15px}
.plat-cards.small .pcard i{font-size:12.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%}

/* DR8 内容深度模块: ToC / Quick Facts / Pros-Cons / How-to / Comparison / byline */
.byline{color:var(--ink-3);font-size:13px;margin:8px 0 0;letter-spacing:.01em}
.toc{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:12px 18px;margin:16px 0 22px;font-size:14px;color:var(--ink-2);display:flex;gap:10px 18px;flex-wrap:wrap;align-items:baseline}
.toc b{color:var(--ink);font-size:13px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;margin-right:6px}
.toc a{color:var(--ink-2);text-decoration:none;border-bottom:1px dashed transparent}
.toc a:hover{color:var(--accent);border-bottom-color:var(--accent);text-decoration:none}
.quickfacts{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px 22px;margin:0 0 18px;padding:14px 0 18px;border-bottom:1px solid var(--line-2)}
.quickfacts div{display:flex;flex-direction:column;gap:3px}
.quickfacts i{font-style:normal;font-size:11px;color:var(--ink-3);text-transform:uppercase;letter-spacing:.06em}
.quickfacts b{color:var(--ink);font-size:15px}
.proscons{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
@media(max-width:680px){.proscons{grid-template-columns:1fr}}
.proscons h2{font-size:18px;margin:0 0 10px;display:flex;align-items:center;gap:8px}
.pros li,.cons li{list-style:none;margin:8px 0;padding:8px 12px 8px 32px;border-radius:8px;font-size:14.5px;color:var(--ink-2);position:relative;line-height:1.5;background:var(--surface-2);border:1px solid var(--line-2)}
.pros li::before{content:"✓";position:absolute;left:12px;top:8px;color:#1db954;font-weight:800}
.cons li::before{content:"!";position:absolute;left:14px;top:8px;color:#ff9f0a;font-weight:800}
[dir=rtl] .pros li,[dir=rtl] .cons li{padding:8px 32px 8px 12px}
[dir=rtl] .pros li::before,[dir=rtl] .cons li::before{left:auto;right:12px}
.howto{list-style:none;counter-reset:s;margin:8px 0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.howto li{counter-increment:s;background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px 14px 56px;position:relative;color:var(--ink-2);font-size:14.5px}
.howto li::before{content:counter(s);position:absolute;left:14px;top:14px;width:28px;height:28px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px}
.howto li b{display:block;color:var(--ink);font-size:15px;margin-bottom:3px}
[dir=rtl] .howto li{padding:14px 56px 14px 16px}
[dir=rtl] .howto li::before{left:auto;right:14px}
.cmptbl{overflow-x:auto;margin:8px 0;-webkit-overflow-scrolling:touch}
.cmptbl table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:520px}
.cmptbl th{text-align:left;padding:10px 12px;background:var(--surface-2);color:var(--ink-3);font-weight:600;font-size:12.5px;text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--line)}
.cmptbl td{padding:11px 12px;border-bottom:1px solid var(--line-2);color:var(--ink-2);vertical-align:middle}
.cmptbl tr.self td{background:color-mix(in srgb,var(--accent) 8%,transparent)}
.cmptbl tr.self a{color:var(--ink);font-weight:600}
.cmptbl a{color:var(--accent)}
.cmptbl .plat-tag{margin-right:4px}
[dir=rtl] .cmptbl th,[dir=rtl] .cmptbl td{text-align:right}
[dir=rtl] .cmptbl .plat-tag{margin-right:0;margin-left:4px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:10px;margin:6px 0;padding:0;overflow:hidden}
.faq summary{cursor:pointer;padding:14px 18px;font-weight:600;color:var(--ink);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq summary::after{content:"+";color:var(--ink-3);font-weight:300;font-size:22px;line-height:1;transition:transform .15s}
.faq details[open] summary::after{content:"−"}
.faq summary::-webkit-details-marker{display:none}
.faq p{padding:0 18px 16px;margin:0;color:var(--ink-2);font-size:14.5px;line-height:1.6}

/* doc/prose pages */
.doc{max-width:760px}
.prose{color:var(--ink-2);font-size:16px;line-height:1.75}
.prose h2{color:var(--ink);font-size:20px;margin:26px 0 10px}
.prose p{margin:0 0 14px}.prose a{font-weight:560}

/* 404 */
.nf{text-align:center;padding:56px 0 40px;max-width:620px;margin:0 auto}
.nf-code{font-size:clamp(72px,16vw,140px);font-weight:800;line-height:1;letter-spacing:-.04em;background:linear-gradient(135deg,var(--accent),#00b3d6);-webkit-background-clip:text;background-clip:text;color:transparent}
.nf h1{margin:6px 0 8px}.nf .search-box{margin:22px auto 18px;text-align:left}
.nf-cta{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;align-items:center}

.count-line{margin:-6px 0 12px;font-size:14px}
/* mobile hamburger */
.menu-btn{display:none;align-items:center;justify-content:center;width:40px;height:40px;flex:none;border:1px solid var(--line);border-radius:10px;background:var(--surface);cursor:pointer;padding:0}
.menu-btn svg{width:22px;height:22px;stroke:var(--ink);fill:none;stroke-width:2;stroke-linecap:round}
@media(max-width:860px){.plat-cards{grid-template-columns:repeat(2,1fr)}.foot-cols{gap:32px}}
@media(max-width:680px){
 .menu-btn{display:inline-flex}
 .topnav{display:none;position:absolute;top:59px;left:0;right:0;flex-direction:column;gap:0;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg);padding:8px 14px 12px}
 .topnav a{padding:12px 8px;font-size:16px;border-bottom:1px solid var(--line-2)}
 html.navopen .topnav{display:flex}
 .hdr-in{gap:10px}
 .app-hero{flex-direction:column;text-align:center;gap:14px}
 .app-hd .cta-row{justify-content:center}.app-hd .muted{margin:6px 0 14px}
 .ico.xl .ava{width:88px;height:88px;border-radius:21px}
 .langsw{margin:4px 0}.langmenu{position:static;box-shadow:none;border:0;min-width:0;padding:0;max-height:none}}
@media(max-width:420px){.hero-search{flex-direction:column}.hero-search button{height:46px}}