:root { --background: #f6f5ef; --text: #20382b; --muted: #768176; --accent: #234d39; }
[hidden] { display: none !important; }
body { display: block; padding: max(40px, env(safe-area-inset-top)) 26px max(28px, env(safe-area-inset-bottom)); }
.download-card { width: min(100%, 420px); margin: 5vh auto 0; padding: 0; background: transparent; border: 0; border-radius: 0; box-shadow: none; }
.download-card[aria-hidden="true"] { visibility: hidden; }
.brand { display: block; text-align: left; }
.logo-box { width: 76px; height: 76px; border: 0; box-shadow: 0 6px 20px #20382b0a; }
.brand-label { display: block; margin-top: 30px; font-size: 10px; font-weight: 700; letter-spacing: 3px; color: var(--muted); }
.brand h1 { margin-top: 14px; font-size: clamp(36px, 10vw, 46px); line-height: 1.22; font-weight: 650; letter-spacing: -1.5px; }
.brand p { margin-top: 16px; font-size: 14px; }
.download-options { gap: 12px; margin-top: 38px; }
.download-btn { min-height: 82px; grid-template-columns: 34px minmax(0, 1fr) auto; padding: 18px 20px; border-color: #20382b18; border-radius: 8px; }
.platform-icon { width: 34px; height: 34px; background: transparent; }
.platform-icon img { width: 25px; height: 25px; }
.platform-copy { gap: 6px; }
.platform-copy strong { font-size: 17px; font-weight: 600; }
.platform-copy small { font-size: 11px; }
.button-arrow { font-size: 24px; }
.download-btn.is-recommended { background: var(--accent); color: #fff; border-color: var(--accent); }
.is-recommended .platform-copy small { color: #d2e2d6; }
.is-recommended .platform-icon img { filter: brightness(0) invert(1); }
.download-btn.is-recommended .platform-badge { display: none; }
.page-note { margin-top: 28px; font-size: 10px; line-height: 1.7; text-align: left; color: var(--muted); }
.browser-notice { margin-top: 24px; padding: 20px; border: 1px solid #dccda6; background: #fff8e8; border-radius: 8px; color: #5f4a25; }
.notice-label { font-size: 10px; letter-spacing: 2px; }
.browser-notice h2 { margin-top: 9px; font-size: 18px; }
.browser-notice p { margin-top: 10px; font-size: 12px; line-height: 1.8; }
#copyDownloadLink { min-height: 44px; width: 100%; margin-top: 16px; border: 1px solid #b7a071; border-radius: 5px; background: transparent; color: #5f4a25; font-weight: 600; font-size: 13px; }
#copyResult:empty { display: none; }
#manualCopy { margin-top: 12px; }
#manualCopy label { font-size: 11px; }
#downloadLinkField { margin-top: 8px; width: 100%; min-height: 44px; padding: 10px; border: 1px solid #dccda6; background: #fff; color: #5f4a25; border-radius: 4px; font: inherit; font-size: 12px; }
button:focus-visible, input:focus-visible { outline: 3px solid #88ad98; outline-offset: 3px; }
.download-help { margin-top: 20px; padding: 16px; border: 1px solid #20382b18; border-radius: 8px; }
.download-help p, .download-help label { font-size: 12px; line-height: 1.8; color: var(--muted); }
.download-help-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.download-help button { min-height: 44px; padding: 10px 14px; border: 1px solid #20382b30; background: transparent; color: var(--text); border-radius: 5px; font: inherit; font-size: 12px; }
#helpCopyResult:empty { display: none; }
#helpDownloadLinkField { width: 100%; margin-top: 8px; padding: 10px; border: 1px solid #20382b30; border-radius: 4px; background: #fff; font: inherit; font-size: 12px; }
@media (hover: hover) and (pointer: fine) { .download-btn.is-recommended:hover { background: #193e2b; border-color: #193e2b; } }
@media (max-width: 350px) { body { padding-left: 20px; padding-right: 20px; } .download-btn { padding: 16px; } }