/* 每日技術脈動 — reading column with the episode's real waveform as the player. */
:root {
  --paper: #f3f5f9;
  --ink: #172341;
  --muted: #59647e;
  --rule: #d6dce7;
  --signal: #2f45d8;
  --signal-ink: #ffffff;
  --signal-soft: #e6ebff;
  --wave-base: #c3cbe0;
  --serif: "Noto Serif TC", "Noto Serif CJK TC", "Source Han Serif TC", "PMingLiU", serif;
  --sans: "Noto Sans TC", "Noto Sans CJK TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  --wide: 1040px;
  --read: 42rem;
  --gutter: clamp(16px, 4vw, 32px);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0f1729;
    --ink: #e4e9f3;
    --muted: #9aa6c0;
    --rule: #27324b;
    --signal: #8e9cff;
    --signal-ink: #0f1729;
    --signal-soft: #1b2446;
    --wave-base: #34415f;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.85;
  font-feature-settings: "palt" 0;
}
a { color: var(--signal); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; border-radius: 2px; }
h1, h2, h3, h4 { text-wrap: balance; margin: 0; }
p { margin: 0; }
ol, ul { margin: 0; padding: 0; }

.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: var(--gutter); top: 8px; background: var(--signal); color: var(--signal-ink); padding: 6px 12px; z-index: 10; }

/* Masthead */
.masthead { border-bottom: 1px solid var(--rule); }
.masthead__inner, .footer__inner, main > section, .episode, .page {
  max-width: var(--wide);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.masthead__inner { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 24px; padding-block: 18px; }
.wordmark { font-family: var(--serif); font-weight: 900; font-size: 22px; letter-spacing: 0.04em; line-height: 1.3; }
.wordmark a, a.wordmark { color: var(--ink); text-decoration: none; }
.masthead__nav { display: flex; flex-wrap: wrap; gap: 4px 20px; font-size: 15px; }
.masthead__nav a { color: var(--muted); text-decoration: none; }
.masthead__nav a:hover { color: var(--ink); }

/* Home */
.intro { padding-block: 40px 0; }
.intro__lead { max-width: var(--read); color: var(--muted); font-size: 16px; }
.latest { padding-block: 28px 56px; display: grid; gap: 18px; }
.dateline { display: flex; gap: 12px; color: var(--muted); font-size: 15px; font-variant-numeric: tabular-nums; }
.latest__title, .episode__title {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(25px, 5.2vw, 50px);
  line-height: 1.25;
  letter-spacing: 0.01em;
}
.latest__title a { color: var(--ink); text-decoration: none; }
.latest__title a:hover { text-decoration: underline; text-decoration-thickness: 2px; }
.latest__summary { max-width: var(--read); font-size: 18px; }
.rundown { display: grid; gap: 12px; max-width: var(--read); }
.rundown__heading { font-size: 15px; font-weight: 500; color: var(--muted); }
.rundown__list { list-style: none; display: grid; gap: 6px; counter-reset: story; }
.rundown__list li { counter-increment: story; display: grid; grid-template-columns: 2em 1fr; column-gap: 4px; }
.rundown__list li::before { content: counter(story); font-family: var(--serif); font-weight: 900; color: var(--signal); grid-row: span 2; }
.rundown__title { font-weight: 500; }
.rundown__source { color: var(--muted); font-size: 14px; }
.text-link { font-weight: 500; justify-self: start; }
.empty { padding-block: 48px; color: var(--muted); }

/* Player */
.player { display: grid; }
.player__native { width: 100%; }
.js .player__native { display: none; }
.player__ui { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 8px 20px; }
.player__ui[hidden] { display: none; }
.player__toggle {
  width: 64px; height: 64px; border-radius: 50%; border: 0; cursor: pointer;
  background: var(--signal); color: var(--signal-ink);
  display: grid; place-items: center; grid-row: span 2;
}
.player__toggle svg { width: 28px; height: 28px; fill: currentColor; }
.player__toggle .icon-pause, .player.is-playing .icon-play { display: none; }
.player.is-playing .icon-pause { display: block; }
.player__track { position: relative; height: 112px; cursor: pointer; touch-action: none; }
.player__wave { position: absolute; inset: 0; }
.player__wave--played { clip-path: inset(0 calc(100% - var(--progress, 0%)) 0 0); }
.wave { display: block; width: 100%; height: 100%; }
.wave rect { fill: var(--wave-base); }
.player__wave--played .wave rect { fill: var(--signal); }
.player__time { grid-column: 2; font-size: 14px; color: var(--muted); font-variant-numeric: tabular-nums; }
.player--large .player__wave--base .wave rect { transform-origin: center; transform-box: fill-box; }
@media (prefers-reduced-motion: no-preference) {
  .js .player--large .player__wave--base .wave rect { animation: rise 700ms cubic-bezier(.2, .7, .2, 1) backwards; animation-delay: calc(var(--i, 0) * 6ms); }
  @keyframes rise { from { transform: scaleY(0.1); } }
}

/* Archive */
.archive { padding-block: 8px 72px; }
.section-title { font-family: var(--serif); font-weight: 600; font-size: 22px; padding-top: 18px; border-top: 2px solid var(--ink); margin-bottom: 8px; }
.archive__list { list-style: none; }
.archive__item {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr) 140px 6.5rem;
  align-items: center;
  gap: 4px 24px;
  padding-block: 20px;
  border-bottom: 1px solid var(--rule);
}
.archive__date { font-family: var(--serif); font-weight: 900; font-size: 30px; line-height: 1.1; font-variant-numeric: tabular-nums; display: grid; }
.archive__date span { font-family: var(--sans); font-weight: 400; font-size: 13px; color: var(--muted); }
.archive__title { font-size: 18px; font-weight: 700; line-height: 1.5; }
.archive__title a { color: var(--ink); text-decoration: none; }
.archive__title a:hover { color: var(--signal); }
.archive__stories { color: var(--muted); font-size: 14px; line-height: 1.7; margin-top: 4px; }
.archive__wave { height: 32px; }
.archive__duration { font-size: 14px; color: var(--muted); text-align: right; font-variant-numeric: tabular-nums; }

/* Episode */
.episode { padding-block: 24px 72px; display: grid; gap: 28px; }
.crumbs { font-size: 14px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 6px; }
.crumbs a { color: var(--muted); }
.episode__head { display: grid; gap: 10px; }
.episode__facts { color: var(--muted); font-size: 15px; }
.episode__section { max-width: var(--read); display: grid; gap: 16px; }
.episode__summary { font-size: 18px; }
.stories { list-style: none; counter-reset: story; display: grid; gap: 40px; }
.story { counter-increment: story; display: grid; gap: 10px; position: relative; padding-left: 3rem; }
.story::before {
  content: counter(story);
  position: absolute; left: 0; top: -0.1em;
  font-family: var(--serif); font-weight: 900; font-size: 34px; line-height: 1; color: var(--signal);
}
.story__title { font-family: var(--serif); font-weight: 600; font-size: 22px; line-height: 1.5; }
.story__meta { font-size: 14px; color: var(--muted); }
.story__impact { background: var(--signal-soft); border-radius: 6px; padding: 14px 18px; display: grid; gap: 4px; }
.story__impact h4 { font-size: 14px; color: var(--signal); font-weight: 700; }
.transcript p { font-family: var(--serif); font-size: 18px; line-height: 2; }
.pager { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; border-top: 1px solid var(--rule); padding-top: 24px; }
.pager__link { display: grid; gap: 2px; color: var(--ink); text-decoration: none; font-weight: 500; }
.pager__link span { font-size: 13px; color: var(--muted); font-weight: 400; }
.pager__link--newer { text-align: right; }
.pager__link:hover { color: var(--signal); }

/* Static pages */
.page { padding-block: 40px 80px; display: grid; gap: 18px; }
.page > * { max-width: var(--read); }
.page__title { font-family: var(--serif); font-weight: 900; font-size: clamp(30px, 5vw, 42px); line-height: 1.3; }
.page__lead { font-size: 18px; color: var(--muted); }
.page h2 { font-family: var(--serif); font-weight: 600; font-size: 22px; margin-top: 16px; }
.page ul { padding-left: 1.2em; display: grid; gap: 6px; }
.page__code code { font-size: 15px; background: var(--signal-soft); padding: 4px 10px; border-radius: 4px; overflow-wrap: anywhere; }

/* Footer */
.footer { border-top: 1px solid var(--rule); color: var(--muted); font-size: 14px; }
.footer__inner { padding-block: 32px 48px; display: grid; gap: 8px; }
.footer__inner > p { max-width: var(--read); }
.footer__about { color: var(--ink); }
.footer__nav { display: flex; flex-wrap: wrap; gap: 4px 20px; margin-top: 8px; }
.footer__nav a { color: var(--muted); }

@media (max-width: 760px) {
  .archive__item { grid-template-columns: 4.5rem minmax(0, 1fr); }
  .archive__wave { display: none; }
  .archive__duration { grid-column: 2; text-align: left; }
  .archive__date { font-size: 24px; }
  .player__track { height: 80px; }
  .player__toggle { width: 52px; height: 52px; }
  .story { padding-left: 2.4rem; }
  .story::before { font-size: 28px; }
}