/* 首頁（下載／入口頁） */
.landing { padding-top: 32px; padding-bottom: 40px; }
.l-head { display: flex; align-items: center; gap: 16px; margin-bottom: 24px; }
.l-head img { border-radius: 18px; box-shadow: var(--shadow); flex: none; }
.l-head h1 { font-size: 1.75rem; margin: 0; }
.l-head p { margin: 2px 0 0; }
.l-actions { display: grid; gap: 12px; }
.l-big {
  justify-content: flex-start; gap: 14px; min-height: 76px; padding: 14px 18px; border-radius: 16px;
  text-align: left; white-space: normal; box-shadow: var(--shadow);
}
.l-big strong { display: block; font-size: 1.125rem; }
.l-big small { display: block; font-weight: 400; font-size: .8125rem; opacity: .85; margin-top: 2px; }
.l-big .l-ico { width: 30px; height: 30px; flex: none; }
.l-big[aria-disabled=true] { opacity: .55; pointer-events: none; }
.l-note { margin: 14px 2px 20px; font-size: .9375rem; color: var(--muted); }
.l-qr { display: flex; gap: 16px; align-items: center; }
.l-qr canvas { width: 132px; height: 132px; flex: none; border-radius: 8px; background: #fff; image-rendering: pixelated; }
.l-qr h2 { margin-bottom: 4px; }
.l-url { font-family: ui-monospace, Consolas, monospace; word-break: break-all; color: var(--muted); margin: 0; }
.l-meta { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 0 0 12px; font-size: .9375rem; }
.l-meta dt { color: var(--muted); }
.l-meta dd { margin: 0; font-variant-numeric: tabular-nums; min-width: 0; }
.l-sha { font-family: ui-monospace, Consolas, monospace; font-size: .75rem; word-break: break-all; }
.l-steps { padding-left: 1.25em; margin: 8px 0 0; }
.l-steps li + li { margin-top: 4px; }
.l-foot { text-align: center; margin-top: 20px; }
@media (max-width: 360px) { .l-qr { flex-direction: column; text-align: center; } }