@charset "UTF-8";
@font-face { font-family: "DM Sans"; font-style: normal; font-weight: 400 600; font-display: swap; src: url("/assets/fonts/dm-sans.woff2") format("woff2"); }
@font-face { font-family: "Instrument Serif"; font-style: italic; font-weight: 400; font-display: swap; src: url("/assets/fonts/instrument-serif-italic.woff2") format("woff2"); }
@font-face { font-family: "Noto Serif Titles"; font-style: normal; font-weight: 400; font-display: swap; src: url("/assets/fonts/noto-serif-titles.woff2") format("woff2"); }
:root { --paper: #f5f5f2; --ink: #27372f; --muted: #626e66; --line: #d4d9d3; --rose: #8c4d63; --pink: #e7cfd7; --sans: "DM Sans",Arial,"PingFang SC","Microsoft YaHei",sans-serif; --brand-serif: "Instrument Serif",Georgia,serif; --display-serif: "Noto Serif Titles",var(--serif); }
[data-theme=dark] { --paper: #1c2220; --ink: #ecede8; --muted: #adb8af; --line: #3c4740; --rose: #e1afc0; --pink: #59414b; }
html { scroll-padding-top: 100px; }
.skip { z-index: 100; }
.home-page .header,.letter-page .header { height: 80px; padding: 0 48px; display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px; position: sticky; top: 0; z-index: 60; background: var(--paper); background: color-mix(in srgb,var(--paper) 94%,transparent); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.header .wordmark { justify-self: start; }
.wordmark { font-size: 25px; }
.wordmark span { font: italic 400 34px/.8 var(--brand-serif); }
.wordmark sup { font-size: 19px; }
.header nav { gap: 31px; font-size: 12px; }
.header nav a { min-height: 44px; display: inline-flex; align-items: center; position: relative; }
.header nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 7px; height: 1px; background: var(--rose); transform: scaleX(0); transform-origin: left; transition: transform .35s ease; }
.header nav a:hover::after,.header nav a[aria-current]::after { transform: scaleX(1); }
.header nav a[aria-current] { color: var(--rose); }
.home-page .header-tools,.letter-page .header-tools { justify-self: end; gap: 3px; }
.header-tools .local-time { margin-right: 16px; font-size: 11px; }
.header-tools .local-time>span { font-size: 9px; }
.home-page .icon-button,.letter-page .icon-button { width: 44px; height: 44px; border: 0; }
.icon-button { transition: background .25s; }
.home-page .icon-button:hover,.letter-page .icon-button:hover { background: var(--line); }
.site-progress { position: absolute; bottom: -1px; left: 0; right: 0; height: 1px; background: var(--rose); transform: scaleX(var(--page-progress,0)); transform-origin: left; pointer-events: none; }
.player-panel { top: 72px; }
.player-title button { width: 36px; height: 36px; margin: -5px -7px 0 0; }
.player-play { width: 44px; height: 44px; }
.player-timeline input { height: 25px; }
.letter-page .letter-progress { top: 80px; }
.letter-page .reading-heading { height: min(530px,calc(70svh - 80px)); min-height: 420px; padding-top: 36px; }
.letter-page .reading h1 { font-family: var(--display-serif); font-size: 58px; }
.letter-page .reading-flow { margin-top: 78px; }
.letter-page .reading-body { font-size: 18px; line-height: 2.15; }
.letter-page .reading-body p { margin-bottom: 32px; }
.letter-page .reading-body .reading-opening { font-size: 24px; }
.letter-page .reading-body blockquote { margin-block: 56px; font-size: 25px; }
.letter-page .reading-signature em { font-family: var(--brand-serif); font-size: 38px; }
.letter-page .reading-body h2 { font-family: var(--display-serif); }
@view-transition { navigation: auto; }
::view-transition-old(root),::view-transition-new(root) { animation-duration: 180ms; }
@media(max-width:1100px) {
  .home-page .header,.letter-page .header { padding-inline: 36px; }
  .header-tools .local-time { display: none; }
}
@media(max-width:760px) {
  html { scroll-padding-top: 90px; }
  .home-page .header,.letter-page .header { height: 70px; padding-inline: 22px; grid-template-columns: auto 1fr auto; gap: 12px; }
  .header .wordmark { font-size: 22px; }
  .header .wordmark span { font-size: 30px; }
  .header .wordmark sup { font-size: 16px; margin-left: 2px; }
  .home-page .header nav,.letter-page .header nav { gap: 20px; font-size: 12px; justify-content: center; }
  .home-page .header-tools,.letter-page .header-tools { gap: 0; }
  .home-page .icon-button,.letter-page .icon-button { width: 40px; height: 44px; }
  .player-panel { top: 62px; }
  .letter-page .letter-progress { top: 70px; }
  .letter-page .reading-heading { min-height: 350px; height: 53svh; max-height: 470px; padding-top: 28px; }
  .letter-page .reading h1 { font-size: 39px; }
  .letter-page .reading-flow { margin-top: 36px; }
  .letter-page .reading-body { font-size: 16px; line-height: 2.1; }
  .letter-page .reading-body p { margin-bottom: 27px; }
  .letter-page .reading-body .reading-opening { font-size: 21px; }
  .letter-page .reading-body blockquote { font-size: 21px; margin-block: 36px; }
}
@media(max-width:380px) {
  .home-page .header,.letter-page .header { padding-inline: 16px; gap: 7px; }
  .home-page .header nav,.letter-page .header nav { gap: 13px; font-size: 11px; }
  .header .wordmark { font-size: 21px; }
  .header .wordmark span { font-size: 28px; }
  .letter-page .reading h1 { font-size: 34px; }
  .letter-page .reading-body { font-size: 15px; }
  .letter-page .reading-body blockquote { font-size: 18px; }
}
@media(prefers-reduced-motion:reduce) {
  html { scroll-behavior: auto; }
  *,*::before,*::after { scroll-behavior: auto !important; }
  .header nav a::after,.icon-button { transition: none; }
  ::view-transition-old(root),::view-transition-new(root) { animation: none; }
}