:root {
  --paper: #f7f5ef;
  --ink: #292824;
  --muted: #6c6962;
  --line: #dedad0;
  --accent: #b65e43;
  --accent-hover: #9e4e36;
  --surface: #eeebe2;
  --white: #fffdf8;
  --positive: #496648;
  --serif: 'Iowan Old Style', 'Palatino Linotype', 'Songti SC', 'Noto Serif CJK SC', 'SimSun', serif;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --radius: 8px;
  --radius-lg: 16px;
  --ease: cubic-bezier(.2, .65, .3, 1);
  --shadow: 0 12px 36px -24px #332b2340;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 100px; }
body { margin: 0; color: var(--ink); background: var(--paper); font: 16px/1.75 var(--sans); -webkit-font-smoothing: antialiased; }
body.modal-open { overflow: hidden; }
button, input { font: inherit; color: inherit; }
button, a, summary { -webkit-tap-highlight-color: transparent; touch-action: manipulation; }
button, summary { cursor: pointer; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, figure, dl { margin: 0; }
h1, h2 { font-family: var(--serif); font-weight: 400; text-wrap: balance; }
h1 { font-size: clamp(44px, 5.1vw, 70px); line-height: 1.3; letter-spacing: -.045em; }
h2 { font-size: clamp(32px, 3.25vw, 46px); line-height: 1.35; letter-spacing: -.025em; }
h3 { font-size: 18px; line-height: 1.6; font-weight: 600; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
::selection { background: #e8c6b4; color: var(--ink); }
.container { width: min(1120px, calc(100% - 96px)); margin-inline: auto; }
.accent { color: var(--accent); }
.small-note { color: var(--muted); font-size: 14px; line-height: 1.85; }
.eyebrow { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 13px; font-weight: 500; letter-spacing: .06em; line-height: 1.6; }
.section-description { color: var(--muted); font-size: 17px; line-height: 1.9; max-width: 430px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 48px; }
.section-heading .eyebrow { margin-bottom: 20px; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
.skip-link { position: fixed; z-index: 100; top: -100px; left: 20px; padding: 10px 20px; background: var(--ink); color: var(--white); }
.skip-link:focus { top: 12px; }
.icon-definitions { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { width: 20px; height: 20px; flex-shrink: 0; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.enter-title { animation: enter .48s var(--ease) both; }
.enter-copy { animation: enter .48s .08s var(--ease) both; }
@keyframes enter { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@media (max-width: 700px) {
  .container { width: calc(100% - 40px); }
  h1 { font-size: clamp(36px, 10.25vw, 48px); line-height: 1.35; }
  h2 { font-size: 32px; }
  .section-heading { display: block; margin-bottom: 32px; }
  .section-heading > p, .section-heading > span { display: block; margin-top: 20px; }
  .section-description { font-size: 16px; }
  .desktop-break { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-delay: 0ms !important; transition-duration: .01ms !important; }
}

.site-header { position: sticky; z-index: 20; top: 0; background: var(--paper); border-bottom: 1px solid var(--line); }
.header-inner { min-height: 80px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; white-space: nowrap; }
.brand-name { display: inline-flex; align-items: baseline; gap: 12px; font: 600 24px/1.2 var(--serif); }
.brand-cn { font: 500 13px/1.3 var(--sans); }
.site-nav { display: flex; align-items: center; gap: 28px; font-size: 14px; }
.nav-link { padding-block: 12px; transition: color .18s; }
.nav-link:hover, .nav-link[aria-current='page'] { color: var(--accent); }
.nav-link[aria-current='page'] { text-decoration: underline; text-underline-offset: 7px; }
.language-switch { padding: 8px 4px; min-width: 28px; text-align: center; font-size: 13px; color: var(--muted); }
.language-switch:hover { color: var(--accent); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 52px; padding: 13px 22px; border: 1px solid var(--accent); border-radius: var(--radius); background: var(--accent); color: var(--white); font-size: 15px; font-weight: 500; line-height: 1.5; transition: transform .18s var(--ease), background .18s, border-color .18s; }
.button:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.button:active { transform: scale(.98); transition-duration: 80ms; }
.button-small { min-height: 42px; padding: 9px 16px; font-size: 14px; }
.button-small .icon { width: 17px; height: 17px; }
.button-ink { background: var(--ink); border-color: var(--ink); }
.button-ink:hover { background: #45433c; border-color: #45433c; }
.button-outline { background: transparent; color: var(--ink); border-color: #bcb7ab; }
.button-outline:hover { background: var(--surface); border-color: var(--muted); }
.button:disabled { opacity: .55; cursor: wait; transform: none; }
.text-link { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 500; min-height: 44px; transition: color .18s; }
button.text-link { padding: 0; border: 0; background: transparent; text-align: left; }
.text-link:hover, .quiet-link:hover { color: var(--accent); }
.text-link .icon { width: 17px; height: 17px; }
.quiet-link { color: var(--muted); font-size: 13px; }
.quiet-link > span { margin-left: 8px; }
.screenshot-link { position: relative; display: block; overflow: hidden; border-radius: var(--radius); }
.screenshot-link > img { width: 100%; }
.expand-hint { position: absolute; bottom: 14px; right: 14px; display: inline-flex; align-items: center; gap: 7px; padding: 8px 12px; border-radius: 5px; background: #292824dc; color: var(--white); font-size: 12px; opacity: 0; transition: opacity .2s; }
.expand-hint .icon { width: 15px; height: 15px; }
.screenshot-link:hover .expand-hint, .screenshot-link:focus-visible .expand-hint { opacity: 1; }
.faq { display: grid; grid-template-columns: 1fr 1.5fr; gap: 80px; padding-block: 96px; }
.faq .eyebrow { margin-bottom: 20px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 23px 0; font-size: 16px; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary > span { color: var(--accent); font: 24px/1 var(--sans); transition: transform .2s; }
.faq-list details[open] summary > span { transform: rotate(45deg); }
.faq-answer { padding: 0 32px 24px 0; color: var(--muted); font-size: 15px; animation: enter .2s var(--ease); }
.site-footer { padding-block: 38px 24px; }
.footer-top { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-bottom: 32px; }
.footer-top p { color: var(--muted); font-size: 14px; }
.footer-top .brand-name { font-size: 21px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.footer-bottom > a { flex-shrink: 0; white-space: nowrap; }
.icon-button { display: inline-grid; place-items: center; width: 44px; height: 44px; padding: 0; border: 1px solid var(--line); border-radius: 50%; background: transparent; }
.icon-button:hover { background: var(--surface); }
dialog { border: 0; }
dialog::backdrop { background: #26241f80; backdrop-filter: blur(3px); }
.download-dialog { width: min(520px, calc(100% - 32px)); max-height: calc(100dvh - 48px); padding: 40px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper); color: var(--ink); overflow-y: auto; box-shadow: 0 24px 80px #0003; }
.download-dialog[open] { animation: dialog-in .22s var(--ease); }
@keyframes dialog-in { from { opacity: 0; transform: translateY(10px) scale(.98); } to { opacity: 1; transform: none; } }
.download-close { position: absolute; right: 16px; top: 16px; width: 36px; height: 36px; }
.download-dialog .eyebrow { margin-top: 8px; margin-bottom: 20px; }
.download-dialog h2 { font-size: 32px; margin-bottom: 20px; }
.download-dialog h2 + p { color: var(--muted); font-size: 15px; }
.download-url-label { display: block; color: var(--muted); font-size: 13px; margin: 24px 0 8px; }
#browser-download-url { width: 100%; min-width: 0; padding: 13px 14px; border: 1px solid #bcb7ab; border-radius: var(--radius); background: var(--white); font-size: 17px; }
.download-dialog-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.download-dialog-actions .button { flex: 1; }
.download-feedback { min-height: 44px; margin-top: 18px; color: var(--muted); font-size: 14px; }
.download-backdrop { position: fixed; inset: 0; z-index: 80; background: #26241f80; }
.download-dialog.fallback-open { position: fixed; inset: 50% auto auto 50%; transform: translate(-50%, -50%); z-index: 81; margin: 0; }
.toy-video-id { color: var(--muted); font-size: 13px; margin: 14px 0 18px; }
.toy-checklist { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.toy-checklist li { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.toy-state { color: var(--muted); font-size: 13px; }
.toy-state[data-state='done'] { color: var(--positive); }
.toy-state[data-state='missing'] { color: var(--accent); }
.toy-gate-note { margin-top: 16px; font-size: 13px; color: var(--muted); }
.lightbox { width: min(1280px, calc(100% - 32px)); max-height: calc(100dvh - 32px); padding: 18px; border-radius: var(--radius-lg); background: var(--paper); color: var(--ink); }
.lightbox-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding-bottom: 14px; }
.lightbox-toolbar p { font-size: 14px; }
.lightbox-image-wrap { overflow: auto; }
.lightbox-image-wrap img { width: 100%; }
.lightbox-portrait { width: min(500px, calc(100% - 32px)); }
.lightbox-portrait .lightbox-image-wrap img { width: auto; max-height: calc(100dvh - 190px); margin-inline: auto; }
.lightbox-tip { color: var(--muted); font-size: 12px; text-align: center; margin-top: 12px; }
@media (max-width: 900px) { .brand-cn { display: none; } .site-nav { gap: 20px; } .faq { gap: 40px; } }
@media (max-width: 700px) {
  .header-inner { min-height: 72px; gap: 12px; }
  .brand-name { font-size: 22px; }
  .brand > img { width: 28px; height: 28px; }
  .site-nav { gap: 16px; font-size: 13px; }
  .site-nav .nav-link:nth-child(-n+2) { display: none; }
  .nav-platform { display: none; }
  .button-small { min-height: 40px; padding: 8px 12px; }
  .expand-hint { opacity: 1; bottom: 8px; right: 8px; font-size: 11px; padding: 5px 8px; }
  .faq { grid-template-columns: 1fr; gap: 32px; padding-block: 64px; }
  .faq-list summary { padding-block: 20px; font-size: 15px; }
  .faq-answer { padding-right: 12px; }
  .footer-top { flex-wrap: wrap; gap: 14px; }
  .footer-top p { flex-basis: 100%; order: 2; }
  .footer-top .text-link { margin-left: auto; font-size: 13px; }
  .footer-bottom { font-size: 11px; }
  .download-dialog { padding: 32px 24px 24px; }
  .download-dialog h2 { font-size: 29px; }
  .lightbox { padding: 12px; }
}
@media (max-width: 359px) { .site-nav { gap: 10px; } .brand-name { font-size: 20px; } .brand { gap: 7px; } }

.hero { padding-block: 56px 46px; }
.hero-kicker { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-bottom: 32px; }
.hero-layout { display: grid; grid-template-columns: 1.5fr 1fr; align-items: end; gap: 40px; }
.hero-copy { padding-bottom: 6px; }
.hero-copy > p:first-child { color: var(--muted); font-size: 16px; line-height: 1.9; margin-bottom: 22px; }
.hero-actions { display: flex; align-items: center; gap: 24px; }
.release-note { display: flex; flex-wrap: wrap; gap: 10px; color: var(--muted); font-size: 13px; margin-top: 18px; }
.release-note > span { color: #a7a096; }
.section-caption { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-bottom: 14px; }
.section-caption h2 { font: 500 14px/1.6 var(--sans); letter-spacing: 0; }
.section-caption > span { color: var(--muted); font-size: 12px; }
.caption-separator { padding-inline: 12px; color: #b9b3a7; }
.showcase-frame { padding: 7px; border: 1px solid #d4d0c5; border-radius: 13px; background: #e9e5db; }
.showcase-controls { display: flex; align-items: start; justify-content: space-between; gap: 24px; padding-top: 20px; }
.gallery-tabs { position: relative; display: flex; flex-shrink: 0; padding: 4px; border-radius: var(--radius); background: var(--surface); }
.gallery-tab { position: relative; z-index: 1; flex-shrink: 0; border: 0; background: transparent; color: var(--muted); font-size: 13px; min-height: 40px; padding: 8px 15px; border-radius: 6px; }
.gallery-tab.active { color: var(--ink); }
.gallery-indicator { position: absolute; top: 4px; left: 0; height: 40px; border-radius: 6px; background: var(--white); box-shadow: 0 1px 4px #332b2312; transition: transform .24s var(--ease), width .24s var(--ease); }
.gallery-caption { max-width: 310px; padding-top: 8px; color: var(--muted); font-size: 13px; text-align: right; }
.no-script-gallery { margin-top: 16px; font-size: 14px; }
.no-script-gallery a { text-decoration: underline; }
.quick-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; padding-block: 54px 64px; }
.quick-facts > div + div { border-left: 1px solid var(--line); padding-left: 40px; }
.fact-value { font: 400 28px/1.4 var(--serif); }
.quick-facts p { font-size: 14px; color: var(--muted); margin-top: 8px; }
.community-section { padding-block: 72px; background: var(--surface); }
.community-layout { display: grid; grid-template-columns: 1.3fr 1fr; align-items: center; gap: 96px; }
.community-copy .eyebrow { margin-bottom: 20px; }
.community-copy > .section-description { margin-top: 24px; }
.community-benefits { margin-block: 32px; }
.community-benefits > div { padding-block: 15px; }
.community-benefits dt { font-size: 16px; font-weight: 500; }
.community-benefits dd { margin: 5px 0 0; color: var(--muted); font-size: 14px; }
.community-visual { max-width: 270px; justify-self: center; }
.community-image { padding: 6px; background: var(--ink); border-radius: 26px; box-shadow: var(--shadow); }
.community-image > img { border-radius: 21px; }
.community-visual figcaption { margin-top: 16px; color: var(--muted); font-size: 12px; text-align: center; }
.play-section { padding-block: 96px; }
.feature-spread { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.feature-panel h3 { margin-top: 24px; }
.feature-panel p { margin-top: 10px; color: var(--muted); font-size: 15px; max-width: 460px; }
.guide-section { padding-block: 76px; background: #efede6; }
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 50px; }
.step-number { display: block; color: var(--accent); font: 400 40px/1.3 var(--serif); margin-bottom: 20px; }
.steps h3 { margin-bottom: 10px; }
.steps p { color: var(--muted); font-size: 15px; }
.steps .text-link { margin-top: 12px; }
.guide-tip { padding-top: 30px; margin-top: 32px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.support-invitation { display: flex; align-items: center; gap: 22px; padding-block: 28px; margin-bottom: 64px; border-block: 1px solid var(--line); }
.support-invitation > .icon { color: var(--accent); width: 28px; height: 28px; }
.support-invitation h2 { font: 500 17px/1.65 var(--sans); letter-spacing: 0; }
.support-invitation p { color: var(--muted); font-size: 14px; margin-top: 4px; }
.support-invitation > .text-link { margin-left: auto; white-space: nowrap; }
.download-section { background: #e8e1d4; padding-block: 70px; }
.download-inner { display: flex; align-items: center; justify-content: space-between; gap: 50px; }
.download-inner .eyebrow { margin-bottom: 20px; }
.download-action { min-width: 280px; }
.download-action .small-note { margin-block: 16px 4px; }
.download-action > .button { min-width: 250px; }
.support-hero { padding-block: 48px 36px; }
.support-hero > .eyebrow { margin-bottom: 22px; color: var(--accent); }
.support-heading { display: grid; grid-template-columns: 1.45fr 1fr; gap: 40px; align-items: end; }
.support-heading h1 { font-size: clamp(40px, 4.5vw, 60px); }
.support-heading > p { color: var(--muted); font-size: 16px; line-height: 1.9; padding-bottom: 8px; }
.support-layout { display: grid; grid-template-columns: 1.45fr 1fr; gap: 40px; align-items: start; }
.author-letter { padding: 40px 44px; border: 1px solid var(--line); background: var(--white); border-radius: 4px; box-shadow: var(--shadow); }
.letter-top { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.letter-top .eyebrow { font-size: 12px; }
.harmonica-mark { width: 104px; flex-shrink: 0; stroke: var(--accent); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.author-letter h2 { font-size: 27px; margin-bottom: 24px; }
.letter-body { max-width: 510px; color: var(--muted); font-size: 16px; line-height: 1.9; }
.letter-body p + p { margin-top: 18px; }
.letter-body .letter-closing { color: var(--ink); margin-top: 28px; }
.letter-signature { display: flex; align-items: baseline; gap: 18px; margin-top: 32px; }
.signature { font: italic 30px/1.3 var(--serif); }
.letter-signature > span:last-child { color: var(--muted); font-size: 12px; }
.support-payment { min-width: 0; }
.payment-card { padding: 32px; border-radius: var(--radius-lg); background: #ede7dc; }
.payment-card > .eyebrow { margin-bottom: 12px; }
.payment-card h2 { font-size: 28px; }
.payment-intro { color: var(--muted); font-size: 14px; margin-top: 14px; }
.payment-emblem { display: grid; place-items: center; width: 72px; height: 72px; margin-block: 26px; background: var(--white); color: var(--accent); border-radius: 50%; }
.payment-emblem .icon { width: 31px; height: 31px; stroke-width: 1.3; }
.payment-card .button { width: 100%; margin-top: 24px; }
.payment-provider { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 24px; padding-top: 16px; border-top: 1px solid #d8cfc1; color: var(--muted); font-size: 12px; }
.stripe-wordmark { font: 700 23px/1.2 var(--sans); letter-spacing: -.05em; color: var(--ink); }
.payment-amount { margin-top: 26px; font: 400 32px/1.4 var(--serif); }
.payment-amount-note { font-size: 13px; color: var(--muted); margin-top: 5px; }
.payment-unit { font: 400 14px/1.6 var(--sans); color: var(--muted); }
.payment-help { font-size: 12px; color: var(--muted); margin-top: 14px; }
.copy-payment-toggle { display: block; padding: 12px 0 0; border: 0; background: transparent; text-align: left; min-height: 44px; }
#payment-copy { animation: enter .2s var(--ease); }
#payment-copy .download-url-label { margin-top: 16px; }
#payment-url { width: 100%; min-width: 0; padding: 10px 12px; background: var(--white); border: 1px solid #bcb7ab; border-radius: var(--radius); font-size: 14px; }
#payment-copy .small-note { font-size: 12px; }
.support-voluntary { margin-top: 20px; font-size: 13px; color: var(--muted); text-align: center; }
.support-purpose { padding-top: 84px; }
.purpose-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
.purpose-list article { border-top: 1px solid var(--line); padding-top: 22px; }
.purpose-number { color: var(--accent); font: 400 26px/1.4 var(--serif); }
.purpose-list h3 { margin-top: 18px; }
.purpose-list p { margin-top: 10px; color: var(--muted); font-size: 15px; }
.support-faq { padding-bottom: 64px; }
.support-end { text-align: center; padding-block: 44px 64px; border-top: 1px solid var(--line); }
.support-end > .icon { width: 30px; height: 30px; color: var(--accent); margin-bottom: 20px; }
.support-end h2 { font-size: 32px; }
.support-end p { color: var(--muted); margin-top: 12px; }
.support-end .button { margin-top: 26px; }
@media (max-width: 1050px) {
  .hero-layout, .support-heading { grid-template-columns: 1.3fr 1fr; gap: 32px; }
  .hero h1 { font-size: 56px; }
  .hero-actions { gap: 16px; flex-wrap: wrap; }
  .showcase-controls { display: block; }
  .gallery-tabs { width: fit-content; }
  .gallery-caption { text-align: left; max-width: none; padding-top: 16px; }
  .community-layout { gap: 64px; }
  .support-layout { gap: 28px; }
  .author-letter { padding: 32px; }
  .support-heading .desktop-break { display: none; }
}
@media (max-width: 700px) {
  .hero { padding-block: 32px; }
  .hero-kicker { margin-bottom: 24px; }
  .hero-kicker .quiet-link { display: none; }
  .hero-layout, .support-heading { grid-template-columns: 1fr; gap: 24px; }
  .hero h1 { font-size: clamp(36px, 10.25vw, 48px); }
  .hero-copy { padding-bottom: 0; }
  .hero-copy > p:first-child { font-size: 15px; margin-bottom: 22px; }
  .hero-actions { gap: 20px; }
  .hero-actions > .button { padding-inline: 18px; }
  .release-note { font-size: 12px; margin-top: 14px; }
  .section-caption { gap: 8px; padding-bottom: 10px; }
  .section-caption h2 { font-size: 12px; }
  .section-caption > span { font-size: 11px; white-space: nowrap; }
  .section-caption > span > .caption-separator { padding-inline: 5px; }
  .section-caption > span { font-size: 0; }
  .section-caption #gallery-count { font-size: 12px; }
  .showcase-frame { padding: 4px; border-radius: 10px; }
  .showcase-controls { padding-top: 14px; }
  .gallery-tabs { width: 100%; padding: 3px; }
  .gallery-tab { flex: 1; min-width: 0; padding: 7px 6px; font-size: 11px; min-height: 38px; }
  .gallery-indicator { top: 3px; height: 38px; }
  .gallery-caption { font-size: 12px; padding-top: 12px; }
  .quick-facts { padding-block: 32px 42px; gap: 14px; }
  .quick-facts > div + div { padding-left: 14px; }
  .fact-value { font-size: 18px; }
  .quick-facts p { font-size: 12px; line-height: 1.6; }
  .community-section { padding-block: 52px; }
  .community-layout { grid-template-columns: 1fr; gap: 36px; }
  .community-copy > .section-description { margin-top: 20px; }
  .community-benefits { margin-block: 20px 24px; }
  .community-visual { max-width: 248px; }
  .play-section { padding-block: 64px; }
  .feature-spread { grid-template-columns: 1fr; gap: 40px; }
  .feature-panel h3 { font-size: 17px; margin-top: 20px; }
  .guide-section { padding-block: 56px; }
  .steps { grid-template-columns: 1fr; gap: 32px; }
  .steps li { position: relative; padding-left: 52px; }
  .step-number { position: absolute; top: 1px; left: 0; font-size: 30px; }
  .guide-tip { padding-top: 24px; }
  .support-invitation { display: grid; grid-template-columns: 28px minmax(0, 1fr); align-items: start; gap: 12px 16px; margin-bottom: 44px; }
  .support-invitation > div { flex: 1; }
  .support-invitation h2 { font-size: 15px; }
  .support-invitation p { font-size: 13px; }
  .support-invitation > .text-link { grid-column: 2; margin-left: 0; }
  .download-section { padding-block: 52px; }
  .download-inner { display: block; }
  .download-action { min-width: 0; margin-top: 28px; }
  .support-hero { padding-block: 32px; }
  .support-heading h1 { font-size: clamp(36px, 10.25vw, 48px); }
  .support-heading > p { font-size: 15px; padding: 0; }
  .support-layout { grid-template-columns: 1fr; gap: 28px; }
  .support-payment { grid-row: 1; }
  .payment-card { padding: 28px; }
  .payment-emblem { float: right; width: 54px; height: 54px; margin: 0 0 16px 16px; }
  .support-voluntary { font-size: 12px; }
  .author-letter { padding: 28px 24px; }
  .letter-top { gap: 12px; margin-bottom: 24px; }
  .harmonica-mark { width: 88px; }
  .letter-body { font-size: 15px; }
  .author-letter h2 { font-size: 25px; }
  .support-purpose { padding-top: 60px; }
  .purpose-list { grid-template-columns: 1fr; gap: 28px; }
  .purpose-list article { position: relative; padding-left: 44px; padding-top: 20px; }
  .purpose-number { position: absolute; left: 0; top: 20px; font-size: 23px; }
  .purpose-list h3 { margin-top: 0; }
  .support-end { padding-block: 40px 56px; }
  .support-end h2 { font-size: 26px; }
}
@media (max-width: 359px) {
  .header-inner { gap: 12px; }
  .site-nav { gap: 12px; }
  .site-nav .nav-link:nth-child(3) { display: none; }
  .fact-value { font-size: 16px; }
  .quick-facts { gap: 10px; }
  .quick-facts > div + div { padding-left: 10px; }
  .gallery-tab { font-size: 10px; }
  .payment-emblem { width: 44px; height: 44px; margin-left: 8px; }
  .payment-emblem .icon { width: 26px; height: 26px; }
}