/* =============================================================================
   AADE 美感教育 — style.css
   Native CSS port of the original React + Tailwind build (no build step).
   Theme background ("paper") is white; ink and vermilion are unchanged.
   Breakpoints match the original: 640 / 768 / 1024 / 1280.
   ============================================================================= */

/* ---------- 1. tokens ---------- */
:root {
  --paper: #ffffff;
  --paper-deep: #f3f2ef;
  --ink: #23201b;
  --ink-2: #4d463c;
  --ink-3: #7d7466;
  --vermilion: #b7391f;
  --vermilion-deep: #932b16;
  --hairline: rgba(35, 32, 27, 0.16);
  --hairline-strong: rgba(35, 32, 27, 0.38);
  --tint: rgba(35, 32, 27, 0.035);

  --serif: "Fraunces", "Noto Serif TC", "Songti TC", serif;
  --sans: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  --mono: "IBM Plex Mono", "Noto Sans TC", monospace;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-std: cubic-bezier(0.4, 0, 0.2, 1);
  --gutter: 1.25rem;
}
@media (min-width: 768px) {
  :root { --gutter: 2.5rem; }
}

/* ---------- 2. reset ---------- */
*, *::before, *::after { box-sizing: border-box; border: 0 solid currentColor; }
html {
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  font-family: var(--sans);
}
body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: inherit;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "palt";
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, h5, h6 { margin: 0; font-size: inherit; font-weight: inherit; }
p, blockquote, figure, dl, dd, hr, ol, ul { margin: 0; }
ol, ul { list-style: none; padding: 0; }
a { color: inherit; text-decoration: inherit; }
button {
  margin: 0; padding: 0; font: inherit; color: inherit; letter-spacing: inherit;
  background: none; cursor: pointer; text-transform: none;
}
img, svg { display: block; vertical-align: middle; }
img { max-width: 100%; height: auto; }
[hidden] { display: none !important; }

::selection { background: var(--vermilion); color: var(--paper); }
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(35, 32, 27, 0.28); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--vermilion); }
:focus-visible { outline: 2px solid var(--vermilion); outline-offset: 3px; }

html.index-open, html.index-open body { overflow: hidden; }

/* ---------- 3. utilities ---------- */
.wrap { max-width: 1440px; margin-inline: auto; padding-inline: var(--gutter); }
.hairline-t { border-top: 1px solid var(--hairline); }
.hairline-b { border-bottom: 1px solid var(--hairline); }
.vertical-rl { writing-mode: vertical-rl; text-orientation: upright; }
.vermilion { color: var(--vermilion); }
.em-serif { font-family: var(--serif); font-weight: 600; color: var(--ink); }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip {
  position: absolute; left: var(--gutter); top: -120px; z-index: 60;
  background: var(--ink); color: var(--paper);
  padding: 0.6rem 1rem; font-size: 13px; letter-spacing: 0.14em;
}
.skip:focus { top: 0.75rem; }

/* scroll-triggered editorial reveal (blur + rise, once) */
.js .rv {
  opacity: 0;
  transform: translateY(26px);
  filter: blur(7px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease), filter 0.9s var(--ease);
  transition-delay: var(--rv-delay, 0ms);
}
.js .rv.is-in { opacity: 1; transform: none; filter: none; }

/* per-letter entrance */
.lt { display: inline-block; }
.lt-word { display: inline-block; white-space: nowrap; }
.js .lt {
  opacity: 0;
  transform: translateY(0.35em) scale(1.16);
  filter: blur(6px);
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease), filter 0.85s var(--ease);
  transition-delay: var(--lt-delay, 0ms);
}
.js .lt-on .lt { opacity: 1; transform: none; filter: none; }

/* underline that grows from the left */
.lnk { position: relative; }
.lnk::after {
  content: ""; position: absolute; left: 0; bottom: -3px; height: 1px; width: 100%;
  background: currentColor; transform: scaleX(0); transform-origin: left center;
  transition: transform 0.5s var(--ease);
}
.lnk:hover::after, .lnk:focus-visible::after,
a:hover .lnk::after, a:focus-visible .lnk::after { transform: scaleX(1); }

/* faint drafting-paper column rules */
.ruled-bg {
  background-image: linear-gradient(to right, rgba(35, 32, 27, 0.05) 1px, transparent 1px);
  background-size: clamp(72px, 11.5vw, 168px) 100%;
}

/* page entrance */
.page-enter { animation: pageIn 0.85s var(--ease) backwards; }
@keyframes pageIn {
  from { opacity: 0; filter: blur(10px); transform: translateY(14px); }
  to { opacity: 1; filter: blur(0); transform: translateY(0); }
}
@keyframes pulse { 50% { opacity: 0.5; } }

/* index rows: slight shift + vermilion number */
.idx { border-top: 1px solid var(--hairline); }
.idx-row { transition: background-color 0.45s var(--ease), padding-left 0.45s var(--ease); }
.idx-row:hover { background-color: var(--tint); padding-left: 1.25rem; }
.idx-no { font-family: var(--mono); font-size: 0.875rem; line-height: 1.25rem; color: var(--ink-3); transition: color 0.45s ease; }
.idx-row:hover .idx-no { color: var(--vermilion); }
.arrow { font-family: var(--serif); color: var(--ink-3); transition: all 0.5s var(--ease-std); }
a:hover .arrow { transform: translateX(0.25rem); color: var(--vermilion); }

/* small labels */
.sq { display: inline-block; flex: none; width: 7px; height: 7px; background: var(--vermilion); }
.kicker { display: flex; align-items: center; gap: 0.75rem; font-family: var(--mono); font-size: 10px; letter-spacing: 0.3em; color: var(--vermilion); }
.sec-label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.3em; color: var(--vermilion); }
.label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.25em; color: var(--ink-3); }
.cat { font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em; color: var(--vermilion); }
.meta-bar {
  display: flex; flex-wrap: wrap; align-items: center; column-gap: 1.5rem; row-gap: 0.5rem;
  border-block: 1px solid var(--hairline); padding-block: 0.75rem;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em; color: var(--ink-3);
}
.meta-bar > span { display: flex; align-items: center; gap: 1.5rem; }
.meta-bar .sep { color: var(--hairline-strong); }

/* ---------- 4. header ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 40;
  background: transparent; transition: all 0.5s var(--ease-std);
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 1px 0 var(--hairline);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.site-header__bar { display: flex; align-items: center; justify-content: space-between; min-height: 96px; padding-block: 10px; }
.brand { display: flex; flex: none; flex-direction: column; align-items: center; gap: 3px; }
.brand__mark { width: 104px; height: 58px; object-fit: cover; mix-blend-mode: multiply; }
.brand__name { padding-left: .18em; font-family: var(--sans); font-size: 11px; line-height: 15px; font-weight: 500; letter-spacing: .18em; }
.top-nav { display: none; align-items: center; gap: 1.75rem; }
.top-nav a { font-size: 13px; letter-spacing: 0.14em; color: var(--ink-2); transition: color 0.15s var(--ease-std); }
.top-nav a:hover { color: var(--ink); }
.top-nav a[aria-current="page"] { color: var(--vermilion); }
.site-header__end { display: flex; align-items: center; gap: 0.5rem; }
.site-header__meta { display: none; margin-right: 0.5rem; font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em; color: var(--ink-3); }
@media (min-width: 768px) { .site-header__meta { display: block; } }
@media (min-width: 1024px) { .top-nav { display: flex; } }

/* 3×3 nine-dot button */
.grid-btn { position: relative; display: flex; align-items: center; justify-content: center; width: 2.5rem; height: 2.5rem; color: var(--ink); }
.grid-btn--light { color: var(--paper); }
.grid-btn__dots { display: grid; grid-template-columns: repeat(3, 3px); gap: 5px; }
.grid-btn__dots > span {
  width: 3px; height: 3px; border-radius: 9999px; background: currentColor;
  transition: all 0.5s var(--ease-std);
}
.grid-btn__dots > span:nth-child(2) { transition-delay: 22ms; }
.grid-btn__dots > span:nth-child(3) { transition-delay: 44ms; }
.grid-btn__dots > span:nth-child(4) { transition-delay: 66ms; }
.grid-btn__dots > span:nth-child(5) { transition-delay: 88ms; }
.grid-btn__dots > span:nth-child(6) { transition-delay: 110ms; }
.grid-btn__dots > span:nth-child(7) { transition-delay: 132ms; }
.grid-btn__dots > span:nth-child(8) { transition-delay: 154ms; }
.grid-btn__dots > span:nth-child(9) { transition-delay: 176ms; }
.grid-btn:hover .grid-btn__dots > span { transform: scale(1.5); }
.grid-btn__x {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-family: var(--serif); font-size: 1.125rem; line-height: 1.75rem;
  opacity: 0; transform: scale(0.5); transition: all 0.5s var(--ease-std);
}
.index-open .grid-btn__dots > span:nth-child(odd) { transform: scale(1); opacity: 1; }
.index-open .grid-btn__dots > span:nth-child(even) { transform: scale(0); opacity: 0; }
.index-open .grid-btn__x { opacity: 1; transform: scale(1); }

/* ---------- 5. full-screen index overlay ---------- */
.site-index {
  position: fixed; inset: 0; z-index: 50;
  background: var(--ink); color: var(--paper);
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity 0.7s var(--ease), visibility 0s linear 0.7s;
}
.index-open .site-index {
  opacity: 1; visibility: visible; pointer-events: auto;
  transition: opacity 0.7s var(--ease), visibility 0s linear 0s;
}
.site-index__inner { display: flex; flex-direction: column; height: 100%; padding-block: 1rem; }
.site-index__top { display: flex; align-items: center; justify-content: space-between; }
.site-index__label { display: flex; align-items: center; gap: 0.75rem; }
.site-index__label img { width: 72px; height: 42px; object-fit: cover; filter: grayscale(1) invert(1); mix-blend-mode: screen; }
.site-index__label span { font-family: var(--mono); font-size: 10px; letter-spacing: 0.25em; color: rgba(255, 255, 255, 0.6); }
.site-index__nav { flex: 1 1 0%; min-height: 0; margin-top: 2.5rem; overflow-y: auto; }
.site-index__list li {
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  opacity: 0; transform: translateY(22px);
  transition: opacity 0.7s var(--ease-std), transform 0.7s var(--ease-std);
  transition-delay: calc(120ms + var(--i, 0) * 45ms);
}
.index-open .site-index__list li { opacity: 1; transform: none; }
.site-index__list a { display: flex; align-items: baseline; gap: 1rem; padding-block: 1rem; }
.site-index__no { font-family: var(--mono); font-size: 10px; color: rgba(255, 255, 255, 0.45); transition: color 0.15s var(--ease-std); }
.site-index__title {
  font-family: var(--serif); font-size: 1.5rem; line-height: 2rem; font-weight: 600; letter-spacing: 0.025em;
  transition: all 0.5s var(--ease-std);
}
.site-index__slug { display: none; margin-left: auto; font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; color: rgba(255, 255, 255, 0.4); }
.site-index__list a:hover .site-index__no { color: var(--vermilion); }
.site-index__list a:hover .site-index__title { transform: translateX(0.75rem); }
.site-index__foot {
  display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 0.75rem 1.5rem;
  padding-top: 1.5rem; padding-bottom: 1rem;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em; color: rgba(255, 255, 255, 0.45);
}
.site-index__legal { display: flex; gap: 1.25rem; }
.site-index__legal a:hover { color: var(--paper); }
.site-index__motto { display: none; }
@media (min-width: 768px) {
  .site-index__nav { margin-top: 3.5rem; }
  .site-index__list a { gap: 2rem; padding-block: 1.25rem; }
  .site-index__title { font-size: 2.25rem; line-height: 2.5rem; }
  .site-index__slug, .site-index__motto { display: block; }
}

/* ---------- 6. footer (colophon) ---------- */
.site-footer { margin-top: 7rem; }
.site-footer__inner { padding-top: 4rem; padding-bottom: 2.5rem; }
.site-footer__tagline { font-family: var(--serif); font-size: 1.875rem; line-height: 1.375; font-weight: 600; letter-spacing: 0.025em; }
.site-footer__grid { margin-top: 3.5rem; display: grid; gap: 3rem; }
.site-footer__brand { display: flex; flex-direction: column; align-items: center; gap: 6px; width: max-content; }
.site-footer__brand img { width: 132px; height: 74px; object-fit: cover; mix-blend-mode: multiply; }
.site-footer__brand span { padding-left: .2em; font-family: var(--sans); font-size: 12px; line-height: 18px; font-weight: 500; letter-spacing: .2em; }
.site-footer__blurb { margin-top: 1.25rem; max-width: 20rem; font-size: 13px; line-height: 1.625; color: var(--ink-2); }
.site-footer__note { margin-top: 1.25rem; font-family: var(--mono); font-size: 10px; line-height: 1.625; letter-spacing: 0.14em; color: var(--ink-3); }
.site-footer__links { margin-top: 1.25rem; display: grid; grid-template-columns: minmax(0, 1fr); column-gap: 2.5rem; }
.site-footer__links a { display: flex; align-items: baseline; justify-content: space-between; gap: 0.75rem; padding-block: 0.625rem; }
.site-footer__links .t { font-size: 13px; color: var(--ink-2); transition: color 0.15s var(--ease-std); }
.site-footer__links a:hover .t { color: var(--ink); }
.site-footer__links .s { display: none; font-family: var(--mono); font-size: 9px; color: rgba(125, 116, 102, 0.7); }
.site-footer__cycle ul { margin-top: 1.25rem; font-size: 13px; color: var(--ink-2); }
.site-footer__cycle li { display: flex; justify-content: space-between; gap: 1rem; }
.site-footer__cycle li + li { margin-top: 0.625rem; }
.site-footer__cycle li span + span { font-family: var(--mono); font-size: 11px; color: var(--ink-3); }
.site-footer__bottom {
  margin-top: 4rem; display: flex; flex-direction: column; gap: 0.75rem;
  border-top: 1px solid var(--hairline); padding-top: 1.5rem;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; color: var(--ink-3);
}
.site-footer__legal { display: flex; gap: 1.5rem; }
.site-footer__legal a { transition: color 0.15s var(--ease-std); }
.site-footer__legal a:hover, .site-footer__legal a[aria-current="page"] { color: var(--ink); }
@media (min-width: 640px) {
  .site-footer__links { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 768px) {
  .site-footer__tagline { font-size: 3rem; line-height: 1; }
  .site-footer__grid { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .site-footer__about { grid-column: span 4; }
  .site-footer__index { grid-column: span 5; }
  .site-footer__cycle { grid-column: span 3; }
  .site-footer__bottom { flex-direction: row; align-items: center; justify-content: space-between; }
}
@media (min-width: 1280px) {
  .site-footer__links .s { display: block; }
}

/* ---------- 7. page header (masthead of each inner page) ---------- */
.ph { padding-top: 8rem; padding-bottom: 3rem; }
.ph__title { margin-top: 1.75rem; font-family: var(--serif); font-size: 13vw; font-weight: 900; line-height: 1.08; letter-spacing: 0.025em; }
.ph__meta { margin-top: 2rem; }
.ph__lede { margin-top: 2.25rem; max-width: 42rem; font-family: var(--serif); font-size: 1.125rem; font-weight: 600; line-height: 2; color: var(--ink-2); }
@media (min-width: 768px) {
  .ph { padding-top: 10rem; }
  .ph__title { font-size: 6.4vw; }
  .ph__lede { font-size: 1.25rem; }
}

/* ---------- 8. editorial blocks ---------- */
.esec { border-top: 1px solid var(--hairline); display: grid; gap: 2rem; padding-block: 3.5rem; }
.esec__title { margin-top: 0.75rem; font-family: var(--serif); font-size: 1.5rem; line-height: 1.375; font-weight: 700; letter-spacing: 0.025em; }
.esec__note { display: none; margin-top: 1.25rem; font-family: var(--mono); font-size: 10px; line-height: 1.625; letter-spacing: 0.14em; color: var(--ink-3); }
.prose { font-size: 15px; line-height: 2; color: var(--ink-2); }
.prose > * + * { margin-top: 1.5rem; }
.prose a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--vermilion); text-decoration-thickness: 1px; text-underline-offset: 0.25em; transition: color 0.15s var(--ease-std); }
.prose a:hover { color: var(--vermilion); }
@media (min-width: 768px) {
  .esec { grid-template-columns: repeat(12, minmax(0, 1fr)); padding-block: 5rem; }
  .esec__head { grid-column: span 3; }
  .esec__body { grid-column: span 9; }
  .esec__title { font-size: 1.7rem; }
  .esec__note { display: block; }
}
@media (min-width: 1024px) {
  .esec__body { grid-column: span 8; }
}

/* pull quote with a vermilion rule */
.pq { position: relative; padding-block: 2.5rem; padding-left: 2rem; }
.pq::before { content: ""; position: absolute; left: 0; top: 2rem; height: calc(100% - 4rem); width: 3px; background: var(--vermilion); }
.pq p { font-family: var(--serif); font-size: 1.25rem; font-weight: 600; line-height: 2; letter-spacing: 0.025em; color: var(--ink); }
@media (min-width: 768px) {
  .pq { padding-left: 3rem; }
  .pq p { font-size: 1.5rem; }
}

/* "next page" link */
.next { display: block; margin-top: 1.5rem; border-top: 1px solid var(--hairline-strong); padding-block: 2.5rem; }
.next__label { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.3em; color: var(--ink-3); }
.next__row { margin-top: 1rem; display: flex; align-items: baseline; justify-content: space-between; gap: 1.5rem; }
.next__title { font-family: var(--serif); font-size: 1.5rem; line-height: 2rem; font-weight: 700; letter-spacing: 0.025em; transition: color 0.15s var(--ease-std); }
.next__arrow { font-family: var(--serif); font-size: 1.5rem; line-height: 2rem; color: var(--ink-3); transition: all 0.5s var(--ease-std); }
.next:hover .next__title { color: var(--vermilion); }
.next:hover .next__arrow { transform: translateX(0.5rem); color: var(--vermilion); }
@media (min-width: 768px) {
  .next__title, .next__arrow { font-size: 2.25rem; line-height: 2.5rem; }
}

/* generic hairline section and section heads */
.block { border-top: 1px solid var(--hairline); padding-block: 3.5rem; }
.block--short { padding-block: 3.5rem; }
.list-top { margin-top: 2rem; border-top: 1px solid var(--hairline); }
@media (min-width: 768px) { .block { padding-block: 5rem; } .block--short { padding-block: 3.5rem; } }
.sec-head { margin-bottom: 3.5rem; display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1.5rem; }
.sec-head--tight { margin-bottom: 3rem; }
.sec-title { margin-top: 1rem; font-family: var(--serif); font-size: 1.875rem; line-height: 2.25rem; font-weight: 900; letter-spacing: 0.025em; }
.sec-aside { max-width: 20rem; font-size: 13px; line-height: 1.625; color: var(--ink-3); }
.h2-plain { font-family: var(--serif); font-size: 1.5rem; line-height: 2rem; font-weight: 700; letter-spacing: 0.025em; }
.h2-list { margin-top: 0.75rem; font-family: var(--serif); font-size: 1.5rem; line-height: 2rem; font-weight: 700; letter-spacing: 0.025em; }
.small-note { font-size: 13px; line-height: 1.625; color: var(--ink-3); }
.figcap { margin-top: 0.75rem; font-family: var(--mono); font-size: 10px; line-height: 1.625; letter-spacing: 0.14em; color: var(--ink-3); }
@media (min-width: 768px) {
  .sec-title { font-size: 3rem; line-height: 1; }
  .h2-plain, .h2-list.h2-list--md { font-size: 1.7rem; }
}
@media (min-width: 768px) { .h2-list--lg { font-size: 1.875rem; line-height: 2.25rem; } }

/* ---------- 9. home ---------- */
.hero { position: relative; overflow: hidden; }
.hero__grid { display: grid; align-content: center; gap: 2.5rem; padding-top: 8rem; padding-bottom: 6rem; }
.hero__side { display: none; }
.hero__side-inner { display: flex; flex-direction: column; align-items: center; gap: 2rem; }
.hero__vert { font-family: var(--serif); font-size: 1.5rem; line-height: 2rem; font-weight: 700; letter-spacing: 0.5em; color: var(--ink-2); }
.hero__rule { display: block; width: 1px; height: 6rem; background: var(--hairline-strong); }
.hero__side img { width: 30px; height: 30px; }
.hero__kicker { display: flex; align-items: center; gap: 0.75rem; font-family: var(--mono); font-size: 10px; letter-spacing: 0.3em; color: var(--ink-3); }
.hero__title { margin-top: 2.5rem; font-family: var(--serif); font-size: 11.5vw; font-weight: 900; line-height: 1.14; letter-spacing: 0.025em; color: var(--ink); }
.hero__title > span { display: block; }
.hero__lede { margin-top: 2.5rem; max-width: 28rem; font-size: 15px; line-height: 2; color: var(--ink-2); }
.hero__links { margin-top: 2.5rem; display: flex; flex-wrap: wrap; column-gap: 2.5rem; row-gap: 1rem; }
.hero__links a { font-family: var(--serif); font-size: 1.125rem; line-height: 1.75rem; font-weight: 600; color: var(--ink); }
.hero__links a.vermilion { color: var(--vermilion); }
.hero__art img { width: 100%; max-width: 520px; height: auto; }
.hero__scroll {
  pointer-events: none; position: absolute; bottom: 1.5rem; left: 50%; transform: translateX(-50%);
  display: none; flex-direction: column; align-items: center; gap: 0.5rem;
}
.hero__scroll span:first-child { font-family: var(--mono); font-size: 9px; letter-spacing: 0.3em; color: var(--ink-3); }
.hero__scroll-line { display: block; width: 1px; height: 2.5rem; background: rgba(125, 116, 102, 0.6); animation: pulse 2s var(--ease-std) infinite; }
@media (min-width: 768px) {
  .hero__grid {
    min-height: 100vh; min-height: 100svh;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    padding-top: 10rem; padding-bottom: 8rem;
  }
  .hero__side { display: flex; justify-content: center; grid-column: span 1; }
  .hero__main { grid-column: span 6; }
  .hero__art { grid-column: span 5; }
  .hero__title { font-size: 4.6vw; }
  .hero__art img { margin-left: auto; }
  .hero__scroll { display: flex; }
}

.home-sec { padding-block: 5rem; }
@media (min-width: 768px) { .home-sec { padding-block: 7rem; } }

.split { display: grid; gap: 2.5rem; }
.split__note { display: none; margin-top: 1rem; font-family: var(--mono); font-size: 10px; line-height: 1.625; letter-spacing: 0.14em; color: var(--ink-3); }
.editor__lead { font-family: var(--serif); font-size: 1.5rem; line-height: 1.625; font-weight: 600; letter-spacing: 0.025em; }
.editor__text { margin-top: 2rem; max-width: 42rem; font-size: 15px; line-height: 2; color: var(--ink-2); }
@media (min-width: 768px) {
  .split { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .split__label { grid-column: span 3; }
  .split__body { grid-column: span 9; }
  .split__note { display: block; }
  .editor__lead { font-size: 2rem; }
}
@media (min-width: 1024px) { .split__body { grid-column: span 8; } }

/* six facets */
.row-facet { display: grid; grid-template-columns: 3.2rem 1fr auto; align-items: center; gap: 1rem; padding-block: 1.25rem; padding-right: 0.5rem; }
.row-facet__art { display: none; width: 5rem; height: 5rem; }
.row-facet__art img { width: 100%; height: 100%; }
.row-facet__name { display: flex; align-items: baseline; gap: 1rem; }
.row-facet__zh { font-family: var(--serif); font-size: 1.5rem; line-height: 2rem; font-weight: 700; letter-spacing: 0.025em; }
.row-facet__en { font-family: var(--mono); font-size: 10px; letter-spacing: 0.25em; color: var(--ink-3); }
.row-facet__desc { display: block; margin-top: 0.5rem; max-width: 32rem; font-size: 13px; line-height: 1.625; color: var(--ink-2); }
.row-facet .arrow { font-size: 1.25rem; line-height: 1.75rem; }
@media (min-width: 768px) {
  .row-facet { grid-template-columns: 4rem 9rem 1fr auto; gap: 2rem; padding-block: 1.5rem; }
  .row-facet__art { display: block; }
  .row-facet__zh { font-size: 1.875rem; line-height: 2.25rem; }
}

/* news */
.row-news { display: grid; grid-template-columns: auto 1fr; align-items: baseline; gap: 1rem; padding-block: 1.25rem; }
.row-news .date { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; color: var(--ink-3); }
.row-news .tag { display: none; font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em; color: var(--vermilion); }
.row-news .title { font-family: var(--serif); font-size: 1.125rem; line-height: 1.625; font-weight: 600; letter-spacing: 0.025em; }
.row-news .arrow { display: none; font-size: 1.25rem; line-height: 1.75rem; }
@media (min-width: 768px) {
  .row-news { grid-template-columns: 12rem 5rem 1fr auto; gap: 2rem; }
  .row-news .tag, .row-news .arrow { display: block; }
  .row-news .title { font-size: 1.25rem; line-height: 1.75rem; }
}

/* the Anne Times band (stays ink as a contrast spread) */
.anne-band { background: var(--ink); color: var(--paper); }
.anne-band__inner { padding-block: 6rem; }
.anne-band__eyebrow { text-align: center; font-family: var(--mono); font-size: 10px; letter-spacing: 0.35em; color: rgba(255, 255, 255, 0.5); }
.anne-band__title { margin-top: 2rem; text-align: center; font-family: var(--serif); font-size: 16vw; line-height: 1; font-weight: 900; letter-spacing: 0.08em; }
.anne-band__meta {
  margin: 1.5rem auto 0; display: flex; max-width: 42rem; align-items: center; justify-content: center; gap: 1.5rem;
  border-block: 1px solid rgba(255, 255, 255, 0.2); padding-block: 0.75rem;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em; color: rgba(255, 255, 255, 0.55);
}
.anne-band__dia { color: var(--vermilion); }
.anne-band__text { margin: 2.5rem auto 0; max-width: 42rem; text-align: center; font-size: 15px; line-height: 2; color: rgba(255, 255, 255, 0.8); }
.anne-band__links { margin-top: 3rem; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; column-gap: 3rem; row-gap: 1.25rem; }
.anne-band__links a { font-family: var(--serif); font-size: 1.125rem; line-height: 1.75rem; font-weight: 600; color: var(--paper); }
.anne-band__links a.vermilion { color: var(--vermilion); }
@media (min-width: 768px) {
  .anne-band__inner { padding-block: 9rem; }
  .anne-band__title { font-size: 7.5vw; }
}

/* bookshelf */
.shelf { display: grid; column-gap: 3.5rem; border-top: 1px solid var(--hairline); }
.shelf__item { display: block; padding-block: 2rem; padding-right: 0.5rem; }
.shelf__meta { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.22em; color: var(--ink-3); }
.shelf__title { margin-top: 0.75rem; font-family: var(--serif); font-size: 1.5rem; line-height: 2rem; font-weight: 700; letter-spacing: 0.025em; }
.shelf__item:hover .shelf__title { color: var(--vermilion); }
.shelf__desc { display: block; margin-top: 1rem; max-width: 28rem; font-size: 13px; line-height: 2; color: var(--ink-2); }
.shelf__more { margin-top: 1.25rem; display: inline-block; font-family: var(--serif); font-size: 15px; font-weight: 600; color: var(--vermilion); }
@media (min-width: 768px) {
  .shelf { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .shelf__title { font-size: 1.875rem; line-height: 2.25rem; }
}

/* journal rows (home + 美感日誌) */
.row-life { display: grid; grid-template-columns: 5.5rem 1fr auto; align-items: baseline; gap: 1rem; padding-block: 1.25rem; }
.row-journal { display: grid; grid-template-columns: auto 1fr; align-items: baseline; gap: 1rem; padding-block: 1.5rem; }
.row-life .title, .row-journal .title { font-family: var(--serif); font-size: 17px; line-height: 1.625; font-weight: 600; letter-spacing: 0.025em; }
.row-life .by, .row-journal .by, .row-journal .date { display: none; font-family: var(--mono); font-size: 10px; color: var(--ink-3); }
.row-journal .date { letter-spacing: 0.12em; }
.row-life .arrow { font-size: 1.125rem; line-height: 1.75rem; }
@media (min-width: 768px) {
  .row-life { grid-template-columns: 7rem 1fr auto auto; gap: 2rem; }
  .row-journal { grid-template-columns: 7rem 1fr auto auto; gap: 2rem; }
  .row-life .title, .row-journal .title { font-size: 1.125rem; line-height: 1.75rem; }
  .row-life .by, .row-journal .by, .row-journal .date { display: block; }
}
.filter { display: flex; flex-wrap: wrap; column-gap: 2rem; row-gap: 0.75rem; border-block: 1px solid var(--hairline); padding-block: 1rem; }
.filter button { font-size: 13px; letter-spacing: 0.14em; color: var(--ink-2); transition: color 0.15s var(--ease-std); }
.filter button:hover { color: var(--ink); }
.filter button[aria-pressed="true"] { color: var(--vermilion); }
.filter__count { margin-left: 0.5rem; font-family: var(--mono); font-size: 10px; color: var(--ink-3); }
.journal { margin-top: 1rem; border-top: 1px solid var(--hairline); }

/* ---------- 10. inner-page lists ---------- */
.row-goal { display: grid; gap: 0.75rem; padding-block: 1.75rem; }
.row-goal h3 { display: flex; align-items: baseline; gap: 1rem; font-family: var(--serif); font-size: 1.5rem; line-height: 2rem; font-weight: 700; letter-spacing: 0.025em; }
.row-goal h3 .idx-no { font-weight: 400; }
.row-goal p { max-width: 36rem; font-size: 15px; line-height: 2; color: var(--ink-2); }

.row-num { display: grid; grid-template-columns: 3.5rem 1fr; align-items: baseline; gap: 1rem; padding-block: 1.25rem; }
.row-num .t { font-family: var(--serif); font-size: 1.125rem; line-height: 1.625; font-weight: 600; letter-spacing: 0.025em; }

.row-year { display: grid; gap: 0.5rem; padding-block: 1.5rem; }
.row-year .idx-no { letter-spacing: 0.1em; }
.row-year--ver .idx-no { letter-spacing: 0.15em; }
.row-year .t { max-width: 42rem; font-size: 15px; line-height: 2; color: var(--ink-2); }

.row-step { display: grid; grid-template-columns: 3.5rem 1fr; gap: 1rem; padding-block: 1.5rem; }
.row-unit { display: grid; gap: 0.5rem; padding-block: 1.5rem; }
.row-listen { display: grid; grid-template-columns: 3.5rem 1fr; align-items: baseline; gap: 1rem; padding-block: 1.25rem; }
.row-step .t, .row-unit .t, .row-listen .t { font-family: var(--serif); font-size: 1.25rem; line-height: 1.75rem; font-weight: 700; letter-spacing: 0.025em; }
.row-step .d, .row-unit .d { max-width: 36rem; font-size: 14px; line-height: 2; color: var(--ink-2); }
.row-step .d { grid-column: span 2; }

.row-info { display: grid; gap: 0.25rem; padding-block: 1.25rem; font-size: 14px; }
.row-info .k { font-family: var(--mono); font-size: 11px; color: var(--ink-3); }
.row-info .v { line-height: 1.625; color: var(--ink-2); }
@media (min-width: 768px) {
  .row-goal { grid-template-columns: 14rem 1fr; gap: 2.5rem; }
  .row-num { grid-template-columns: 5rem 1fr; }
  .row-num .t { font-size: 1.25rem; line-height: 1.75rem; }
  .row-year { grid-template-columns: 10rem 1fr; gap: 2.5rem; }
  .row-year--ver { grid-template-columns: 8rem 1fr; }
  .row-step { grid-template-columns: 4rem 9rem 1fr; gap: 2rem; }
  .row-step .d { grid-column: span 1; }
  .row-unit { grid-template-columns: 4rem 12rem 1fr; gap: 2rem; }
  .row-info { grid-template-columns: 11rem 1fr; gap: 2rem; }
}

/* the Anne Times masthead */
.masthead { border-block: 2px solid var(--ink); padding-block: 2rem; text-align: center; }
.masthead__top { font-family: var(--mono); font-size: 10px; letter-spacing: 0.35em; color: var(--ink-3); }
.masthead__title { margin-top: 1.25rem; font-family: var(--serif); font-size: 3rem; line-height: 1; font-weight: 900; letter-spacing: 0.12em; }
.masthead__bottom { margin-top: 1.25rem; font-family: var(--mono); font-size: 10px; letter-spacing: 0.25em; color: var(--ink-3); }
@media (min-width: 768px) {
  .masthead { padding-block: 2.5rem; }
  .masthead__title { font-size: 4.5rem; }
}

/* 4 / 8 side layout */
.side { display: grid; gap: 2rem; }
.side__note { margin-top: 1.25rem; }
@media (min-width: 768px) {
  .side { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .side__head { grid-column: span 4; }
  .side__body { grid-column: span 8; }
}

/* paired links */
.pair { margin-top: 2rem; display: grid; column-gap: 3.5rem; border-top: 1px solid var(--hairline); }
.pair__item { display: block; padding-block: 1.75rem; }
.pair__m { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em; color: var(--ink-3); }
.pair__t { margin-top: 0.5rem; display: inline-block; font-family: var(--serif); font-size: 1.25rem; line-height: 1.75rem; font-weight: 700; letter-spacing: 0.025em; }
.pair__item:hover .pair__t { color: var(--vermilion); }
.pair__d { display: block; margin-top: 0.75rem; max-width: 28rem; font-size: 13px; line-height: 2; color: var(--ink-2); }
@media (min-width: 768px) { .pair { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* two-column newspaper body */
.newscols { column-gap: 3.5rem; padding-block: 3.5rem; font-size: 15px; line-height: 2; color: var(--ink-2); }
.newscols > p { margin-bottom: 1.5rem; }
.newscols__lead { font-family: var(--serif); font-size: 1.25rem; line-height: 2; font-weight: 700; color: var(--ink); }
@media (min-width: 768px) { .newscols { columns: 2; padding-block: 5rem; column-rule: 1px solid var(--hairline); } }

.signoff { padding-bottom: 1rem; text-align: right; font-family: var(--mono); font-size: 10px; letter-spacing: 0.25em; color: var(--ink-3); }
.tail { padding-bottom: 1rem; font-size: 15px; line-height: 2; color: var(--ink-2); }

/* issue grid */
.issues {
  margin-top: 2rem; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px;
  border: 1px solid var(--hairline); background: var(--hairline);
}
.issue { background: var(--paper); padding: 1.5rem 1rem; transition: background-color 0.5s var(--ease-std); }
.issue:hover { background: var(--ink); }
.issue__no { font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em; color: var(--ink-3); transition: color 0.15s var(--ease-std); }
.issue__t { margin-top: 0.5rem; font-family: var(--serif); font-size: 1.25rem; line-height: 1.75rem; font-weight: 700; letter-spacing: 0.025em; transition: color 0.15s var(--ease-std); }
.issue:hover .issue__no { color: rgba(255, 255, 255, 0.5); }
.issue:hover .issue__t { color: var(--paper); }
.issue--special .issue__no, .issue--special:hover .issue__no { color: var(--vermilion); }
.issue--listen, .issue--listen:hover { background: var(--vermilion); }
.issue--listen:hover { background: var(--vermilion-deep); }
.issue--listen .issue__no, .issue--listen:hover .issue__no { color: rgba(255, 255, 255, 0.7); }
.issue--listen .issue__t { color: var(--paper); }
.issue--next, .issue--next:hover { background: rgba(243, 242, 239, 0.5); }
.issue--next .issue__no, .issue--next:hover .issue__no { color: rgba(125, 116, 102, 0.7); }
.issue--next .issue__t, .issue--next:hover .issue__t { color: var(--ink-3); }
@media (min-width: 640px) { .issues { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (min-width: 1024px) { .issues { grid-template-columns: repeat(6, minmax(0, 1fr)); } }

/* Q&A */
.qa { margin-top: 2rem; }
.qa > * + * { margin-top: 2.5rem; }
.qa__item { display: grid; gap: 0.75rem; }
.qa__item h3 { font-family: var(--serif); font-size: 1.125rem; line-height: 1.625; font-weight: 700; letter-spacing: 0.025em; }
.qa__q { margin-right: 0.75rem; font-family: var(--mono); font-size: 0.75rem; line-height: 1rem; color: var(--vermilion); }
.qa__item p { max-width: 42rem; font-size: 14px; line-height: 2; color: var(--ink-2); }
@media (min-width: 768px) {
  .qa__item { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .qa__item h3 { grid-column: span 4; }
  .qa__item p { grid-column: span 8; }
}

/* course example */
.overview { display: grid; gap: 2.5rem; padding-bottom: 1rem; }
.overview__art { width: 100%; max-width: 300px; }
.overview__art img { width: 100%; aspect-ratio: 1 / 1; }
@media (min-width: 768px) {
  .overview { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .overview__text { grid-column: span 8; }
  .overview__fig { grid-column: span 4; }
}
.path { margin-top: 2rem; display: flex; flex-wrap: wrap; align-items: center; column-gap: 1.25rem; row-gap: 1rem; font-family: var(--serif); font-size: 1.25rem; line-height: 1.75rem; font-weight: 700; letter-spacing: 0.025em; }
.path > span { display: flex; align-items: center; gap: 1.25rem; }
.path__sep { font-family: var(--mono); font-size: 0.875rem; line-height: 1.25rem; font-weight: 400; color: var(--ink-3); }
@media (min-width: 768px) { .path { font-size: 1.875rem; line-height: 2.25rem; } }
.dots > li { display: flex; gap: 1rem; }
.dots > li + li { margin-top: 1rem; }
.dots > li::before { content: ""; flex: none; margin-top: 0.7em; width: 6px; height: 6px; background: var(--vermilion); }

/* ---------- 11. added pages (about / contact / privacy / terms) ---------- */
.desk { padding-bottom: 1rem; }
.row-desk { display: grid; gap: 0.35rem; padding-block: 1.25rem; }
.row-desk .k { font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em; color: var(--ink-3); }
.row-desk .v { display: flex; flex-wrap: wrap; align-items: baseline; column-gap: 1.5rem; row-gap: 0.25rem; }
.row-desk .big { font-family: var(--serif); font-size: 1.375rem; line-height: 1.5; font-weight: 700; letter-spacing: 0.025em; color: var(--ink); overflow-wrap: anywhere; }
.row-desk a.big { transition: color 0.15s var(--ease-std); }
.row-desk a.big:hover { color: var(--vermilion); }
.row-desk .note { font-size: 13px; line-height: 1.625; color: var(--ink-2); }
@media (min-width: 768px) {
  .row-desk { grid-template-columns: 11rem 1fr; align-items: baseline; gap: 2rem; }
  .row-desk .big { font-size: 1.75rem; }
}

.tags { border-top: 1px solid var(--hairline); }
.tags li { display: grid; gap: 0.25rem; padding-block: 1rem; border-bottom: 1px solid var(--hairline); }
.tags__k { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; color: var(--vermilion); white-space: nowrap; }
.tags__v { font-size: 14px; line-height: 1.9; color: var(--ink-2); }
@media (min-width: 640px) {
  .tags li { grid-template-columns: 7.5rem 1fr; gap: 1.5rem; align-items: baseline; }
}

.figs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem 1rem; }
.figs__item img { width: 100%; aspect-ratio: 1 / 1; }
.figs .figcap { margin-top: 0.4rem; }
@media (min-width: 1024px) { .figs { grid-template-columns: repeat(6, minmax(0, 1fr)); } }

/* ---------- 12. 404 ---------- */
.nf { display: flex; min-height: 70vh; flex-direction: column; align-items: center; justify-content: center; padding-top: 7rem; text-align: center; }
.nf img { width: 40px; height: 40px; }
.nf h1 { margin-top: 2.5rem; font-family: var(--serif); font-size: 3.75rem; line-height: 1; font-weight: 900; letter-spacing: 0.025em; }
.nf__l1 { margin-top: 1.5rem; font-family: var(--serif); font-size: 1.125rem; line-height: 1.75rem; font-weight: 600; letter-spacing: 0.025em; color: var(--ink-2); }
.nf__l2 { margin-top: 1rem; max-width: 24rem; font-size: 13px; line-height: 1.625; color: var(--ink-3); }
.nf__link { margin-top: 2.5rem; font-family: var(--serif); font-size: 1.125rem; line-height: 1.75rem; font-weight: 600; color: var(--vermilion); }
@media (min-width: 768px) { .nf h1 { font-size: 6rem; } }

/* ---------- 13. motion & print ---------- */
@media (prefers-reduced-motion: reduce) {
  .js .rv, .js .lt { opacity: 1 !important; transform: none !important; filter: none !important; transition: none !important; }
  .page-enter, .hero__scroll-line { animation: none !important; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}
@media print {
  .site-header, .site-index, .skip, .hero__scroll, .grid-btn { display: none !important; }
  .js .rv, .js .lt { opacity: 1 !important; transform: none !important; filter: none !important; }
  .page-enter { animation: none; }
  .anne-band { background: none; color: var(--ink); }
  .anne-band__eyebrow, .anne-band__meta, .anne-band__text { color: var(--ink-2); }
  .ph { padding-top: 1rem; }
}

/* ---------- 14. small helpers used by the generated pages ---------- */
.more-link { font-family: var(--serif); font-size: 15px; font-weight: 600; color: var(--ink); }
.sec-head--flush { margin-bottom: 0; }
.label--tight { letter-spacing: 0.18em; }
.body-text { max-width: 42rem; font-size: 15px; line-height: 2; color: var(--ink-2); }
.journal-note { margin-top: 2.5rem; }
.maxw-xl { max-width: 36rem; }