:root{
  --navy:#102a43;--navy-2:#1d4a73;--blue:#245c94;--green:#187653;
  --bg:#f5f7fa;--card:#fff;--line:#e5eaf0;--text:#17324d;--muted:#738294;
  --orange:#ff6408;--shadow:0 10px 30px rgba(16,42,67,.08);--radius:18px;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","PingFang SC","Helvetica Neue",Arial,sans-serif;font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
img{display:block;max-width:100%}
.shell{max-width:1080px;margin:0 auto;padding:0 18px 34px}
.boot{min-height:100dvh;display:grid;place-content:center;justify-items:center;gap:14px;color:var(--muted);text-align:center;padding:24px}
.boot h2{font-size:17px;margin:0;color:var(--text)}
.boot p{margin:0;font-size:12px}
.spinner{width:26px;height:26px;border:2.5px solid #dbe4ec;border-top-color:var(--navy);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.error-icon{width:46px;height:46px;border-radius:14px;background:#fff0f0;color:#b65151;display:grid;place-items:center;font-size:22px;font-weight:700}

/* top bar */
.topbar{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:calc(10px + env(safe-area-inset-top)) 18px 10px;background:rgba(245,247,250,.88);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid rgba(229,234,240,.75)}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(145deg,#ff8737,#ff6408 56%,#db4500);display:grid;place-items:center;box-shadow:0 6px 16px rgba(217,79,0,.24);flex:0 0 auto}
.brand-mark svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:3.2;stroke-linecap:round;stroke-linejoin:round}
.brand-mark .check{stroke:#8ff0bd;stroke-width:3.5}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.4px;line-height:1.1}
.brand-sub{display:block;font-size:8px;letter-spacing:2px;color:var(--muted);font-weight:600;margin-top:3px}
.top-pill{font-size:10px;color:#486a88;background:#e8f0f8;border:1px solid #d8e5f1;padding:5px 9px;border-radius:999px;font-weight:600;white-space:nowrap}

/* hero */
.hero{position:relative;overflow:hidden;margin:16px 0 14px;padding:26px 22px 20px;border-radius:26px;color:#fff;background:radial-gradient(120% 140% at 100% 0%,#2b6796 0%,#173d5f 45%,#102a43 100%);box-shadow:0 18px 40px rgba(16,42,67,.22)}
.hero:before{content:"";position:absolute;width:220px;height:220px;border-radius:50%;border:1px solid rgba(255,255,255,.12);right:-70px;top:-90px;box-shadow:0 0 0 40px rgba(255,255,255,.04),0 0 0 90px rgba(255,255,255,.025);pointer-events:none}
.hero:after{content:"";position:absolute;width:120px;height:120px;border-radius:50%;background:radial-gradient(circle,rgba(255,135,55,.34),rgba(255,100,8,0) 70%);right:10px;bottom:-40px;pointer-events:none}
.eyebrow{font-size:9px;letter-spacing:2.4px;color:#9fc0d8;font-weight:700;margin:0 0 10px}
.hero h1{font-size:30px;line-height:1.22;letter-spacing:-.6px;margin:0 0 10px;font-weight:700;position:relative}
.hero .lead{font-size:12.5px;color:#b9d0e2;line-height:1.7;margin:0;max-width:310px;position:relative}
.hero-stats{display:flex;gap:24px;margin-top:20px;position:relative}
.hero-stats b{display:block;font-size:22px;letter-spacing:-.5px;line-height:1.2}
.hero-stats span{font-size:10px;color:#9fc0d8}

/* notice */
.notice{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-radius:14px;background:#fff8ec;border:1px solid #ffe3bd;color:#8a5a12;font-size:11.5px;line-height:1.65;margin:0 0 16px}
.notice-icon{width:17px;height:17px;border-radius:50%;background:#e8a33d;color:#fff;display:grid;place-items:center;font-size:10px;font-weight:700;flex:0 0 auto;margin-top:1px;font-style:normal}
.notice b{color:#6d4306}

/* toolbar */
.toolbar{position:relative}
.search{display:flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:11px 14px;box-shadow:0 2px 8px rgba(16,42,67,.03)}
.search svg{width:17px;height:17px;fill:none;stroke:#94a3b3;stroke-width:2;stroke-linecap:round;flex:0 0 auto}
.search input{border:0;outline:0;flex:1;min-width:0;font-size:14px;background:transparent;color:var(--text);padding:0}
.search input::placeholder{color:#a3b1bf}
.chips{display:flex;gap:8px;overflow-x:auto;padding:12px 0 4px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.chips::-webkit-scrollbar{display:none}
.chip{flex:0 0 auto;border:1px solid var(--line);background:#fff;color:#5c7288;padding:7px 14px;border-radius:999px;font-size:12px;font-weight:500;transition:background .15s,color .15s,border-color .15s}
.chip.on{background:var(--navy);border-color:var(--navy);color:#fff}

/* list */
.section-head{display:flex;align-items:baseline;justify-content:space-between;margin:18px 2px 10px}
.section-head h2{font-size:16px;margin:0;letter-spacing:-.2px}
.section-head span{font-size:11px;color:var(--muted)}
.app-list{display:grid;gap:12px}
.app-card{display:flex;gap:13px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 2px 10px rgba(16,42,67,.03);transition:transform .15s,box-shadow .15s,border-color .15s;cursor:pointer;min-width:0}
.app-card:hover{box-shadow:0 8px 24px rgba(16,42,67,.08);border-color:#d8e2ec}
.app-card:active{transform:scale(.988)}
.app-body{min-width:0;flex:1}
.app-title{display:flex;align-items:center;gap:6px}
.app-title h3{font-size:15px;margin:0;font-weight:650;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tag-featured{font-size:9px;color:#b45309;background:#fff1e2;border-radius:4px;padding:2px 5px;font-weight:600;flex:0 0 auto}
.app-cat{font-size:10.5px;color:var(--muted);margin-top:2px}
.app-desc{font-size:11.5px;color:#7d8da0;margin:6px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.55}
.app-meta{display:flex;align-items:center;gap:8px;font-size:10px;color:#94a3b3;flex-wrap:wrap}
.app-meta i{width:3px;height:3px;border-radius:50%;background:#c3ced9;display:block}
.badge-platform{display:inline-flex;align-items:center;gap:4px;font-size:9.5px;font-weight:600;padding:3px 7px;border-radius:999px;margin-left:auto}
.badge-android{background:#fff3e6;color:#b45309}
.badge-ios{background:#e9f6ef;color:var(--green)}
.badge-ios:before{content:"";width:5px;height:5px;border-radius:50%;background:currentColor}

/* icon */
.icon-wrap{position:relative;display:grid;place-items:center;overflow:hidden;background:hsl(var(--h,210) 42% 46%);color:#fff;flex:0 0 auto}
.icon-wrap .icon-letter{font-size:22px;font-weight:700;line-height:1}
.icon-wrap img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#eef3f8}
.app-icon{width:58px;height:58px;border-radius:15px;border:1px solid #edf1f5}
.detail-icon{width:82px;height:82px;border-radius:20px;border:1px solid #edf1f5}
.detail-icon .icon-letter{font-size:30px}

/* empty */
.empty{text-align:center;padding:52px 20px;color:var(--muted);background:#fff;border:1px dashed #dce4eb;border-radius:var(--radius)}
.empty .icon{font-size:32px;color:#b9c6d2;margin-bottom:8px}
.empty h3{font-size:14px;color:var(--text);margin:0 0 5px}
.empty p{font-size:11.5px;margin:0}

/* detail */
.detail-head{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:10px;padding:calc(10px + env(safe-area-inset-top)) 16px 10px;background:rgba(245,247,250,.9);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid rgba(229,234,240,.75)}
.back-btn{width:36px;height:36px;border-radius:12px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;font-size:20px;line-height:1;color:var(--navy);flex:0 0 auto;padding:0 0 2px}
.detail-head b{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.detail-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;margin:14px 0;box-shadow:0 4px 20px rgba(16,42,67,.04)}
.detail-top{display:flex;gap:16px;align-items:center}
.detail-top>div{min-width:0}
.detail-top h1{font-size:21px;margin:0 0 3px;letter-spacing:-.4px;line-height:1.3}
.pkg{font-size:10.5px;color:#94a3b3;word-break:break-all}
.detail-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px;align-items:center}
.tag-cat{font-size:9.5px;color:#486a88;background:#eef4fa;border-radius:999px;padding:3px 8px;font-weight:600}
.detail-tags .badge-platform{margin-left:0}
.detail-actions{display:grid;gap:9px;margin-top:18px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:14px;padding:13px 18px;font-size:14px;font-weight:650;width:100%;transition:transform .12s,background .15s}
.btn:active{transform:scale(.985)}
.btn-primary{background:var(--navy);color:#fff;box-shadow:0 6px 18px rgba(16,42,67,.16)}
.btn-secondary{background:#fff;color:var(--navy);border:1px solid var(--line)}
.btn-ios{background:var(--green);color:#fff;box-shadow:0 6px 18px rgba(24,118,83,.18)}
.ios-hint{font-size:10.5px;color:#a08152;background:#fff8ec;border-radius:10px;padding:9px 11px;margin:10px 0 0;line-height:1.6}
.block-title{font-size:14px;margin:0 0 12px;letter-spacing:-.1px}
.desc{font-size:13px;color:#5c7288;white-space:pre-wrap;line-height:1.85;margin:0;word-break:break-word}
.shots{display:flex;gap:10px;overflow-x:auto;padding:2px 0 6px;scrollbar-width:thin}
.shots img{height:260px;width:auto;border-radius:12px;border:1px solid var(--line);background:#eef3f8;cursor:zoom-in;flex:0 0 auto}
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.info-item{background:#f8fafc;border-radius:12px;padding:11px 12px;min-width:0}
.info-item span{display:block;font-size:10px;color:#94a3b3;margin-bottom:3px}
.info-item b{font-size:12.5px;font-weight:600;color:#3c5570;word-break:break-all}
.changelog{margin-top:14px;padding-top:13px;border-top:1px solid #f0f3f7}
.changelog span{display:block;font-size:10px;color:#94a3b3;margin-bottom:5px}
.changelog p{font-size:12px;color:#5c7288;margin:0;line-height:1.75;white-space:pre-wrap}
.privacy-link{display:inline-block;margin-top:12px;font-size:11px;color:var(--blue);font-weight:600}

/* footer */
.footer{text-align:center;font-size:10px;color:#a1aeb9;padding:26px 0 calc(14px + env(safe-area-inset-bottom))}
.footer span{display:block;margin-top:4px}

/* toast */
.toast{position:fixed;left:50%;bottom:calc(26px + env(safe-area-inset-bottom));transform:translateX(-50%);background:#17324d;color:#fff;padding:11px 18px;border-radius:12px;font-size:12px;z-index:120;box-shadow:0 8px 24px rgba(0,0,0,.22);max-width:calc(100vw - 32px);text-align:center}

/* modal */
.modal{position:fixed;inset:0;z-index:110;display:grid;align-items:end;background:rgba(8,20,32,.5);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);padding:16px}
.modal-card{background:#fff;border-radius:22px;padding:22px;max-width:460px;margin:0 auto;width:100%;box-shadow:0 24px 60px rgba(0,0,0,.25);padding-bottom:calc(22px + env(safe-area-inset-bottom))}
.modal-icon{width:46px;height:46px;border-radius:14px;background:#eef4fa;display:grid;place-items:center;font-size:23px;margin-bottom:12px}
.modal-card h3{font-size:17px;margin:0 0 7px}
.modal-card p{font-size:12px;color:var(--muted);line-height:1.7;margin:0 0 13px}
.copy-row{background:#f5f8fb;border:1px solid var(--line);border-radius:11px;padding:10px 12px;margin-bottom:12px;overflow:hidden}
.copy-row code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:10.5px;color:#486a88;word-break:break-all;line-height:1.5;display:block}
.modal-card .btn{margin-top:8px}

/* lightbox */
.lightbox{position:fixed;inset:0;z-index:130;background:rgba(6,16,26,.94);display:grid;place-items:center;padding:18px}
.lightbox img{max-width:100%;max-height:88vh;border-radius:12px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lightbox-close{position:absolute;top:calc(14px + env(safe-area-inset-top));right:16px;width:38px;height:38px;border-radius:50%;border:0;background:rgba(255,255,255,.14);color:#fff;font-size:22px;line-height:1;display:grid;place-items:center}

/* responsive */
@media(min-width:700px){
  .shell{padding:0 26px 40px}
  .topbar{padding-left:26px;padding-right:26px}
  .hero{padding:34px 32px 26px}
  .hero h1{font-size:36px}
  .hero .lead{font-size:13.5px;max-width:420px}
  .app-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .detail-card{padding:24px}
  .detail-icon{width:92px;height:92px}
  .detail-top h1{font-size:24px}
}
@media(min-width:1040px){
  .app-list{grid-template-columns:repeat(3,minmax(0,1fr))}
  .detail-card{max-width:760px;margin-left:auto;margin-right:auto}
  .detail-head{padding-left:calc(50% - 380px);padding-right:calc(50% - 380px)}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
/* ===== v2 optimizations ===== */
body{-webkit-tap-highlight-color:transparent;overflow-x:hidden}
:focus-visible{outline:3px solid #99c5f4;outline-offset:2px}
.search input{font-size:16px}
.detail-head b{flex:1;min-width:0}
.share-btn{width:34px;height:34px;flex:0 0 34px;border-radius:11px;border:1px solid var(--line);background:#fff;color:var(--navy);font-size:17px;display:grid;place-items:center;padding:0}

/* skeleton */
.sk{background:linear-gradient(90deg,#e9eef4 25%,#f5f8fb 37%,#e9eef4 63%);background-size:400% 100%;animation:shimmer 1.4s ease infinite;border-radius:14px}
@keyframes shimmer{0%{background-position:100% 50%}100%{background-position:0 50%}}
.sk-hero{height:210px;border-radius:26px;margin:16px 0 14px}
.sk-notice{height:52px;margin-bottom:16px}
.sk-search{height:44px;margin-bottom:6px}
.sk-chips{display:flex;gap:8px;margin:12px 0}
.sk-chip{width:64px;height:30px;border-radius:999px;flex:0 0 auto}
.sk-list{display:grid;gap:12px;margin-top:22px}

/* install tip */
.install-tip{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:14px;background:#eef4fa;border:1px solid #d8e5f1;margin:0 0 14px}
.install-tip-text{flex:1;min-width:0}
.install-tip-text b{display:block;font-size:12px;color:#24476a}
.install-tip-text span{display:block;font-size:10px;color:#7d93a8;margin-top:2px}
.install-tip-btn{border:0;background:var(--navy);color:#fff;border-radius:9px;padding:7px 10px;font-size:10.5px;font-weight:600;white-space:nowrap}
.install-tip-close{border:0;background:transparent;color:#8ba0b3;font-size:16px;width:24px;height:24px;line-height:1;padding:0}

/* install steps */
.install-steps{list-style:none;padding:0;margin:14px 0 18px;display:grid;gap:9px}
.install-steps li{display:flex;gap:11px;align-items:center;background:#f8fafc;border:1px solid #e8eef4;border-radius:13px;padding:11px 12px}
.install-steps li>span{width:26px;height:26px;border-radius:9px;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:11px;font-weight:700;flex:0 0 auto}
.install-steps b{display:block;font-size:12px}
.install-steps small{display:block;font-size:10px;color:#8ba0b3;margin-top:2px}

/* related */
.related{display:flex;gap:10px;overflow-x:auto;padding-bottom:4px}
.related-item{flex:0 0 190px;display:flex;gap:10px;align-items:center;text-align:left;background:#f8fafc;border:1px solid #e8eef4;border-radius:14px;padding:10px;color:inherit;min-width:0}
.related-icon{width:38px;height:38px;border-radius:10px}
.related-icon .icon-letter{font-size:15px}
.related-text{min-width:0}
.related-text b{display:block;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.related-text small{display:block;font-size:9.5px;color:#94a3b3;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* lightbox nav */
.lightbox img{max-width:calc(100% - 84px);max-height:80vh}
.lightbox-nav{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;border-radius:50%;border:0;background:rgba(255,255,255,.14);color:#fff;font-size:24px;line-height:1;display:grid;place-items:center;z-index:2}
.lightbox-nav.prev{left:12px}
.lightbox-nav.next{right:12px}
.lightbox-count{position:absolute;bottom:calc(18px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);color:#fff;font-size:11px;background:rgba(255,255,255,.14);padding:4px 10px;border-radius:999px}

/* desktop qr */
.qr-card{display:none}
@media(min-width:900px){
  .qr-card{display:flex;align-items:center;gap:14px;max-width:1080px;margin:18px auto 0;padding:14px 18px;background:#fff;border:1px solid var(--line);border-radius:16px}
  .qr-card img{width:74px;height:74px;border-radius:10px;border:1px solid var(--line)}
  .qr-card b{display:block;font-size:12px}
  .qr-card p{font-size:10px;color:#94a3b3;margin:3px 0 0}
}

/* mobile detail bar */
.detail-bar{display:none}
@media(max-width:720px){
  .detail-actions{display:none}
  .detail-bar{display:flex;gap:8px;position:fixed;left:0;right:0;bottom:0;z-index:28;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(245,247,250,.94);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-top:1px solid var(--line)}
  .detail-bar .bar-copy{width:52px;flex:0 0 52px;border-radius:14px;border:1px solid var(--line);background:#fff;color:var(--navy);font-size:11px;font-weight:600;display:grid;place-items:center;padding:0}
  .detail-bar .btn{flex:1;width:auto}
  .detail-shell{padding-bottom:96px}
}