:root{
  --brand:#0a5337; --brand2:#0ea371; --ink:#14201a; --muted:#5b6b62;
  --bg:#f4f7f5; --card:#ffffff; --line:#dde6df; --warn-bg:#fff7e6; --warn-line:#f0d9a0;
  --radius:16px;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink)}
.site-header{background:var(--card);border-bottom:1px solid var(--line);padding:14px 16px;position:sticky;top:0;z-index:5}
.brand{display:flex;align-items:center;gap:12px;max-width:720px;margin:0 auto}
.brand-name{font-size:19px;font-weight:700;line-height:1.2}
.brand-tag{font-size:13px;color:var(--muted)}
.wrap{max-width:720px;margin:0 auto;padding:16px}
.loading{padding:32px 0;text-align:center;color:var(--muted)}

.app-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px 16px;margin-bottom:16px;text-align:center;box-shadow:0 1px 3px rgba(10,83,55,.06)}
.app-icon{width:72px;height:72px;border-radius:18px;margin:0 auto 10px;display:flex;align-items:center;justify-content:center;background:#e7f2ec;font-size:30px;font-weight:800;color:var(--brand);overflow:hidden}
.app-icon img{width:100%;height:100%;object-fit:cover}
.app-name{font-size:21px;font-weight:700;margin:2px 0}
.app-desc{font-size:14px;color:var(--muted);margin:4px auto 8px;max-width:520px}
.app-meta{font-size:14px;color:var(--muted);display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:14px}
.btn{display:block;width:100%;min-height:56px;border:0;border-radius:12px;background:var(--brand);color:#fff;font-size:17px;font-weight:700;cursor:pointer;padding:14px 16px;touch-action:manipulation}
.btn:active{background:var(--brand2)}
.btn:disabled{opacity:.55;cursor:default}
.btn-again{background:#fff;color:var(--brand);border:2px solid var(--brand);text-decoration:none;text-align:center;margin-top:12px}
.link-btn{background:none;border:0;color:var(--brand);font-size:14px;font-weight:600;cursor:pointer;padding:8px}
details.apk-details{text-align:left;margin-top:12px;border-top:1px solid var(--line);padding-top:10px;font-size:13px}
details.apk-details summary{cursor:pointer;font-weight:600;color:var(--brand)}
.sha{word-break:break-all;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;background:#f0f4f1;border:1px solid var(--line);border-radius:8px;padding:8px;margin:8px 0}
.copy-btn{background:#e7f2ec;border:1px solid var(--line);border-radius:8px;padding:6px 12px;font-size:13px;cursor:pointer}
.prev{margin-top:8px}
.prev-row{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 0;border-top:1px solid var(--line);font-size:14px;text-align:left}
.prev-row .btn{width:auto;min-height:44px;font-size:14px;padding:8px 14px}

.how{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px 16px}
.how h2{font-size:17px;margin:0 0 10px}
.steps{margin:0 0 12px;padding-left:20px;font-size:14.5px;line-height:1.55}
.notice{border:1px solid var(--line);background:#eef5f0;border-radius:12px;padding:12px 14px;font-size:14px;line-height:1.5;margin-bottom:16px}
.notice-warn{background:var(--warn-bg);border-color:var(--warn-line)}
.fineprint{font-size:12.5px;color:var(--muted);line-height:1.55;margin:12px 0 0}
.site-footer{text-align:center;color:var(--muted);font-size:12.5px;padding:8px 16px 28px}

.dl-panel{position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 30px rgba(0,0,0,.18);padding:16px;z-index:20;max-width:696px;margin:0 auto;max-height:calc(100dvh - 24px);overflow-y:auto}
.dl-head{display:flex;justify-content:space-between;align-items:center;gap:10px}
.dl-title{font-weight:700;font-size:16px}
.dl-close{background:none;border:0;font-size:24px;line-height:1;cursor:pointer;color:var(--muted);padding:2px 6px}
.dl-bar{height:10px;background:#e7eee9;border-radius:99px;overflow:hidden;margin:12px 0 8px}
.dl-fill{height:100%;width:0%;background:var(--brand2);border-radius:99px;transition:width .2s}
.dl-fill.indeterminate{width:35%;transition:none;animation:dlslide 1.1s ease-in-out infinite alternate}
@keyframes dlslide{from{margin-left:0}to{margin-left:65%}}
.dl-next-head{font-weight:700;font-size:14px;margin:12px 0 0}
.dl-msg{font-size:14px;color:var(--muted);line-height:1.5}
.dl-steps{font-size:14px;line-height:1.6;margin:10px 0 0;padding-left:20px}
@media (min-width:560px){ .app-card{padding:26px 22px} .btn{font-size:18px} }

/* install.html */
.site-header .site-name{font-size:19px;font-weight:700;margin:0}
.site-header .site-tagline{font-size:13px;color:var(--muted);margin:2px 0 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px 16px;margin-bottom:16px;box-shadow:0 1px 3px rgba(10,83,55,.06);font-size:14.5px;line-height:1.55}
.card p{margin:0 0 10px}
.card .btn{margin-top:6px}
.install-title{font-size:22px;margin:0 0 6px}
.install-note{color:var(--muted);margin:0}
.step-title{font-size:17px;margin:0 0 10px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.step-badge{background:#e7f2ec;color:var(--brand);font-size:11px;font-weight:700;padding:3px 8px;border-radius:99px}
.hint{font-size:13px;color:var(--muted);margin:10px 0 0}
.clean-list{margin:0;padding-left:20px;line-height:1.6}
.clean-list li{margin-bottom:6px}