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@font-face{font-family:BlueberrySerif;src:url('/assets/noto-serif-sc-600.ttf') format('truetype');font-style:normal;font-weight:600;font-display:swap}
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.site-footer{border-top:1px solid var(--line);padding:26px 0 30px}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}.footer-inner p{margin:0;font-size:11px;color:var(--muted)}.footer-inner .footer-brand{font:600 20px/1.8 var(--serif);letter-spacing:.1em;color:var(--ink)}.footer-inner nav{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:12px 25px;font-size:11px;color:var(--muted)}.footer-inner a{min-height:36px;display:inline-flex;align-items:center}.footer-inner a:hover{color:var(--forest);text-decoration:underline;text-underline-offset:4px}
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@media(min-width:1700px){.hero-inner{min-height:660px}.hero-art{height:580px}.phone{max-width:244px}.hero h1{font-size:62px}}
@media(max-width:1150px){.shell{width:calc(100% - 72px)}.header-inner{gap:18px}.brand{font-size:23px}.brand-caption{display:none}.site-nav{gap:24px}.header-action{margin-left:6px}.hero-inner{min-height:570px}.hero-art{height:485px}.hero h1{font-size:3.8vw}.hero-note{font-size:14px}.hero-actions{gap:20px}.phone-set{gap:11px;inset:45px 5% 15px 5%}.phone{border-radius:28px}.phone-bezel{border-radius:21px}.art-side-note{right:-12px;font-size:8px}.download-grid,.story-grid,.notes-grid{gap:48px}.download-app+article::before{left:-24px}.download-actions{gap:17px}.download-actions .button{min-width:190px}.story-heading{gap:10px 48px}.story-article h3{font-size:26px}}
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@media(max-width:370px){.shell{width:calc(100% - 32px)}.brand{font-size:20px}.header-action{padding-inline:12px}.hero h1{font-size:27px}.hero-art{height:370px}.phone-set{inset:30px 6% 20px}.download-actions{gap:15px}.download-actions .button{min-width:175px;padding-inline:15px}.download-actions .text-link{font-size:11px;gap:7px}.hero-note{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.reading-progress{display:none}}
/* Preserve the real formula, operands and result; omit the historical screenshot's old history-count header. */
.formula-preview .screen-caption{position:absolute;inset:0 0 auto;height:13%;padding:0;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:clamp(10px,1vw,14px);line-height:1.3}
.formula-preview .screen-caption small{font-size:7px;line-height:1.3;margin-top:2px}
.formula-preview .calculator-crop{top:13%}
.site-stats{display:flex;justify-content:center;gap:clamp(24px,7vw,92px);margin:28px auto 0;padding-top:20px;border-top:1px solid var(--line);text-align:center}.site-stats div{display:grid;gap:5px}.site-stats strong{font:600 24px/1 var(--serif);color:var(--ink);font-variant-numeric:tabular-nums}.site-stats span{font-size:11px;color:var(--muted)}

.site-stats-status{text-align:center;font-size:11px;line-height:1.8;color:var(--muted);margin:12px 0 0}
.download-actions.download-actions-platforms{flex-wrap:wrap}

/* Download reading order: fruit, daily ledger, blueberry matching. */
.download-grid.download-grid-sequence{grid-template-columns:minmax(0,1fr);gap:0}
.download-grid-sequence>.download-app{margin-top:0;padding:32px 0;grid-template-columns:1.2fr 1fr;gap:48px}
.download-grid-sequence>.download-app:first-child{padding-top:0;border-top:0}
.download-grid-sequence>.download-app+article::before{display:none}
.download-grid-sequence .download-actions{flex-wrap:wrap}
.site-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
@media(max-width:700px){.download-grid-sequence>.download-app{grid-template-columns:minmax(0,1fr);gap:28px;padding:28px 0}.site-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 16px}}
