/* 梁宗榮 醫師 — 甲狀腺・副甲狀腺外科
 *
 * 版面語彙很小，只有三個：
 *   .shell    頁面最大寬度（1220px）
 *   .band     一個垂直區段，負責 section 之間的呼吸
 *   .measure  長文閱讀寬度（44rem ≒ 704px）
 *
 * 質感靠字級層次、留白與極細的分隔線建立，不靠陰影、漸層或圓角堆疊。
 */

:root {
  /* 色彩 */
  --navy: #1E3347;
  --navy-soft: #38516A;
  --muted: #6B7C8F;
  --muted-light: #A4AFBD;
  --warm: #F6F2EC;
  --surface: #FFFFFF;

  --bg: var(--surface);
  --band-warm: var(--warm);
  --ink: var(--navy);
  --ink-soft: var(--navy-soft);
  /* 指定色票的 --muted (#6B7C8F) 在白底只有 4.28、暖底 3.84，小字達不到
     WCAG AA 的 4.5。這裡壓深一階到 #5D6E7E（白底 5.25、暖底 4.71），
     色相維持不變，肉眼幾乎看不出差別，但小字就合規了。 */
  --ink-faint: #5D6E7E;
  --line: #E4DED4;
  --line-strong: #D3CABC;

  /* 版面 */
  --shell: 1220px;
  /* 這是含左右內距的外框寬，實際文字欄還要再扣掉兩側 gutter。
     48rem - 2×2.5rem ≒ 688px，落在長文可讀寬度 680–760px 之內。 */
  --measure: 48rem;
  --band-y: clamp(4rem, 9vw, 7.5rem);
  --gutter: clamp(1.25rem, 4vw, 2.5rem);

  /* 字體 */
  --font-sans: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei",
               -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-display: "Playfair Display", "Noto Serif TC", Georgia, "Times New Roman", serif;
}

/* 深色模式是既有行為，沿用；色票由同一組海軍藍推導，不另開一套色系。 */
@media (prefers-color-scheme: dark) {
  :root {
    --surface: #16222E;
    --bg: #101A24;
    --band-warm: #17232F;
    --ink: #E9EDF1;
    --ink-soft: #AEBCC8;
    --ink-faint: #8496A4;
    --line: #26333F;
    --line-strong: #35434F;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; }

a { color: inherit; text-underline-offset: 3px; }

:focus-visible {
  outline: 2px solid var(--navy-soft);
  outline-offset: 3px;
  border-radius: 2px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}

/* 只給輔助技術與計數器用的隱藏元素——不能用 display:none，
   那會讓它從無障礙樹上消失，也讓某些瀏覽器跳過它。 */
.srOnly {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip {
  position: absolute; left: -9999px;
  background: var(--navy); color: #fff;
  padding: .7rem 1.1rem; z-index: 20;
}
.skip:focus { left: 1rem; top: 1rem; }

/* ------------------------------------------------------------ 版面骨架 */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.band { padding-block: var(--band-y); }
.band--warm { background: var(--band-warm); }

.measure {
  width: 100%;
  max-width: var(--measure);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* 標題左、內文右的兩欄結構，整個站重複使用 */
.splitSection {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.splitSection__body > p { margin: 0 0 1.35rem; }
.splitSection__body > p:last-child { margin-bottom: 0; }

.sectionHead { margin: 0 0 2.5rem; }
.splitSection .sectionHead { margin-bottom: 0; }

.sectionHead__zh {
  font-size: clamp(1.45rem, 2.6vw, 1.95rem);
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: .02em;
  margin: 0;
}
.sectionHead__en {
  font-family: var(--font-display);
  font-size: .95rem;
  font-style: italic;
  letter-spacing: .04em;
  color: var(--ink-faint);
  margin: .35rem 0 0;
}

.chapterNum {
  font-family: var(--font-display);
  font-size: .95rem;
  letter-spacing: .18em;
  color: var(--ink-faint);
  margin: 0 0 .6rem;
}

.lead { color: var(--ink-soft); }

.microLabel {
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--ink-faint);
  margin: 2rem 0 .75rem;
}

.sectionFoot { margin: 2.75rem 0 0; }

.arrowLink {
  display: inline-flex;
  align-items: baseline;
  gap: .5rem;
  font-size: .95rem;
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: .2rem;
  transition: border-color .18s ease, gap .18s ease;
}
.arrowLink:hover { border-color: var(--ink); gap: .8rem; }

.btn {
  display: inline-block;
  padding: .8rem 1.6rem;
  font-size: .95rem;
  text-decoration: none;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  transition: background-color .18s ease, border-color .18s ease, color .18s ease;
}
.btn:hover { border-color: var(--ink); }
.btn--solid {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}
.btn--solid:hover { background: var(--navy-soft); border-color: var(--navy-soft); }

/* ---------------------------------------------------------------- 頁首 */

.masthead {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.masthead__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 72px;
}

.identity {
  display: flex;
  flex-direction: column;
  gap: .1rem;
  text-decoration: none;
  padding-block: .75rem;
}
.identity__zh {
  font-size: 1.1rem;
  font-weight: 500;
  letter-spacing: .06em;
}
.identity__en {
  font-size: .68rem;
  font-weight: 400;
  letter-spacing: .13em;
  color: var(--ink-faint);
  text-transform: uppercase;
}

.sitenav ul {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.2vw, 2rem);
  list-style: none;
  margin: 0;
  padding: 0;
}
.sitenav a {
  display: inline-block;
  font-size: .92rem;
  text-decoration: none;
  color: var(--ink-soft);
  padding-block: .3rem;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease;
}
.sitenav a:hover { color: var(--ink); }
.sitenav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.navToggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: 0;
  cursor: pointer;
}
.navToggle__bar {
  display: block;
  height: 1px;
  width: 22px;
  margin-inline: auto;
  background: var(--ink);
}

/* ---------------------------------------------------------------- Hero */

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 55fr) minmax(0, 45fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}

.hero__name { margin: 0; }
.hero__zh {
  display: block;
  font-size: clamp(2.1rem, 4.6vw, 3.05rem);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: .04em;
}
.hero__en {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(.9rem, 1.5vw, 1.05rem);
  font-weight: 400;
  letter-spacing: .1em;
  color: var(--ink-faint);
  margin-top: .7rem;
}

.hero__field {
  font-size: 1.05rem;
  letter-spacing: .1em;
  color: var(--ink-soft);
  margin: 1.6rem 0 0;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
}

.hero__motto {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  font-weight: 500;
  line-height: 1.6;
  letter-spacing: .03em;
  margin: 1.4rem 0 0;
}
.hero__mottoEn {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--ink-faint);
  margin: .3rem 0 0;
}

.hero__lead {
  color: var(--ink-soft);
  margin: 1.5rem 0 0;
  max-width: 34rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  margin-top: 2.2rem;
}

.hero__affil {
  list-style: none;
  margin: 2.4rem 0 0;
  padding: 1.4rem 0 0;
  border-top: 1px solid var(--line);
  font-size: .85rem;
  color: var(--ink-faint);
  display: flex;
  flex-wrap: wrap;
  gap: .3rem 1.5rem;
}

.portrait {
  aspect-ratio: 4 / 5;      /* 先鎖比例，換成真照片時不會產生 CLS */
  width: 100%;
  overflow: hidden;
  background: var(--warm);
  border: 1px solid var(--line);
}
.portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.portrait--empty { background: var(--band-warm); }

@media (prefers-color-scheme: dark) {
  .portrait { background: var(--band-warm); }
}

/* ------------------------------------------------------------ 核心專長 */

.capGrid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
}

.capCard {
  display: block;
  background: var(--band-warm);
  padding: 2.2rem 1.6rem 2.4rem;
  text-decoration: none;
  transition: background-color .2s ease;
}
.capCard:hover { background: var(--surface); }

.capCard__num {
  display: block;
  font-family: var(--font-display);
  font-size: .85rem;
  letter-spacing: .18em;
  color: var(--ink-faint);
  margin-bottom: 1.4rem;
}
.capCard__title {
  font-size: 1.08rem;
  font-weight: 500;
  line-height: 1.55;
  margin: 0 0 .45rem;
}
.capCard__en {
  font-family: var(--font-display);
  font-size: .78rem;
  font-style: italic;
  line-height: 1.5;
  color: var(--ink-faint);
  margin: 0 0 1.1rem;
}
.capCard__body {
  font-size: .9rem;
  line-height: 1.8;
  color: var(--ink-soft);
  margin: 0;
}

/* -------------------------------------------------------- 引句與清單 */

.pullQuote {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  line-height: 1.6;
  letter-spacing: .02em;
  margin: 2.2rem 0;
  padding-inline-start: 1.4rem;
  border-inline-start: 2px solid var(--line-strong);
}

.valueList {
  list-style: none;
  margin: 2rem 0;
  padding: 0;
  display: grid;
  gap: .1rem;
}
.valueList li {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: .85rem 0;
  border-top: 1px solid var(--line);
  font-size: .98rem;
}
.valueList li:last-child { border-bottom: 1px solid var(--line); }
.valueList__num {
  font-family: var(--font-display);
  font-size: .8rem;
  letter-spacing: .1em;
  color: var(--ink-faint);
}

/* ------------------------------------------------------------ 手術理念 */

.philosophy__headline {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  font-weight: 400;
  line-height: 1.45;
  letter-spacing: .01em;
  margin: 2.5rem 0 2rem;
  max-width: 22ch;
}
.philosophy__body {
  max-width: var(--measure);
  color: var(--ink-soft);
}
.philosophy__body p { margin: 0 0 1.35rem; }

.pillars {
  list-style: none;
  margin: 3.5rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border-block: 1px solid var(--line);
}
.pillars li {
  background: var(--band-warm);
  padding: 1.8rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}
.philosophy:not(.band--warm) .pillars li { background: var(--surface); }
.pillar__num {
  font-family: var(--font-display);
  font-size: .8rem;
  letter-spacing: .18em;
  color: var(--ink-faint);
  margin-bottom: .5rem;
}
.pillar__zh { font-size: 1.02rem; font-weight: 500; }
.pillar__en {
  font-family: var(--font-display);
  font-size: .78rem;
  font-style: italic;
  color: var(--ink-faint);
}

/* -------------------------------------------------------- 術式與肯定 */

.approaches {
  list-style: none;
  margin: 0 0 2rem;
  padding: 0;
}
.approaches li {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  padding: 1.2rem 0;
  border-top: 1px solid var(--line);
}
.approaches li:last-child { border-bottom: 1px solid var(--line); }
.approach__abbr {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: .06em;
}
.approach__full {
  font-size: .85rem;
  line-height: 1.6;
  color: var(--ink-faint);
}

.recognition {
  margin-top: 2.5rem;
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--line-strong);
}
.recognition__award {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: .04em;
  margin: 0 0 .3rem;
}
.recognition__citation {
  font-size: .9rem;
  color: var(--ink-faint);
  margin: 0;
}

/* ---------------------------------------------------------------- 研究 */

.flow {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  gap: .55rem;
}
.flow li {
  font-family: var(--font-display);
  font-size: .95rem;
  letter-spacing: .05em;
  color: var(--ink-soft);
}
.flow li + li::before {
  content: "↓";
  display: block;
  color: var(--muted-light);
  margin-bottom: .55rem;
}

.dirList { list-style: none; margin: 0; padding: 0; }
.dirList li {
  padding: .85rem 0;
  border-top: 1px solid var(--line);
  font-size: .98rem;
}
.dirList li:last-child { border-bottom: 1px solid var(--line); }

.timeline { list-style: none; margin: 0; padding: 0; }
.timeline__row {
  display: grid;
  grid-template-columns: 8rem minmax(0, 1fr);
  gap: .3rem 1.5rem;
  padding: 1.1rem 0;
  border-top: 1px solid var(--line);
}
.timeline__row:last-child { border-bottom: 1px solid var(--line); }
.timeline__period {
  font-family: var(--font-display);
  font-size: .88rem;
  letter-spacing: .06em;
  color: var(--ink-faint);
}
.timeline__what { font-size: .98rem; }
.timeline__detail {
  grid-column: 2;
  font-size: .88rem;
  color: var(--ink-faint);
}

/* ------------------------------------------------------------ 文章卡片 */

.postGrid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.postCard { display: flex; flex-direction: column; }
.postCard__media {
  display: block;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  margin-bottom: 1.1rem;
  background: var(--band-warm);
}
.postCard__media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.postCard__cat {
  font-size: .75rem;
  letter-spacing: .14em;
  color: var(--ink-faint);
  margin: 0 0 .7rem;
  padding-bottom: .7rem;
  border-bottom: 1px solid var(--line);
}
.postCard__title {
  font-size: 1.08rem;
  font-weight: 500;
  line-height: 1.6;
  margin: 0 0 .6rem;
}
.postCard__title a {
  text-decoration: none;
  transition: color .18s ease;
}
.postCard__title a:hover { color: var(--ink-soft); }
.postCard__excerpt {
  font-size: .9rem;
  line-height: 1.8;
  color: var(--ink-soft);
  margin: 0 0 1rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.postCard__date {
  margin: auto 0 0;
  font-size: .8rem;
  color: var(--ink-faint);
}

/* ------------------------------------------------------------ 門診 CTA */

.band--cta { border-top: 1px solid var(--line); }
.clinicCta { text-align: center; }
.clinicCta__title {
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  font-weight: 500;
  letter-spacing: .03em;
  margin: 0 0 .5rem;
}
.clinicCta__place { color: var(--ink-faint); margin: 0 0 2rem; }
.clinicCta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .8rem;
  justify-content: center;
}

/* ------------------------------------------------------------ 內容頁頭 */

.pageHead { padding-bottom: 0; }
.pageHead__zh {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: .03em;
  margin: 0;
}
.pageHead__en {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  letter-spacing: .05em;
  color: var(--ink-faint);
  margin: .5rem 0 0;
}
.pageHead__intro {
  color: var(--ink-soft);
  margin: 1.5rem 0 0;
  max-width: var(--measure);
}

/* ---------------------------------------------------------------- 文章 */

.post { padding-block: var(--band-y) 0; }

.post__title {
  font-size: clamp(1.6rem, 3.2vw, 2.15rem);
  font-weight: 500;
  line-height: 1.45;
  letter-spacing: .02em;
  margin: 0 0 1.2rem;
}
.post__byline { font-size: .92rem; color: var(--ink-soft); margin: 0 0 .5rem; }
.post__byline .sep { margin-inline: .5rem; color: var(--muted-light); }
.post__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem 1.2rem;
  margin: 0 0 1.2rem;
  font-size: .8rem;
  color: var(--ink-faint);
}
.post__meta [data-count] { font-variant-numeric: tabular-nums; }

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem .5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.tags li {
  font-size: .75rem;
  letter-spacing: .04em;
  padding: .2rem .7rem;
  color: var(--ink-soft);
  background: var(--band-warm);
  border: 1px solid var(--line);
}

.post__figure {
  margin: 2.75rem auto;
  width: 100%;
  max-width: calc(var(--measure) + 6rem);
  padding-inline: var(--gutter);
}
.post__figure img { display: block; width: 100%; height: auto; }
.post__figure figcaption {
  margin-top: .7rem;
  font-size: .78rem;
  line-height: 1.7;
  color: var(--ink-faint);
}

.prose { font-size: 1.03rem; line-height: 1.85; }
.prose > :first-child { margin-top: 0; }
.prose h2, .prose h3, .prose h4, .prose h5 {
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: .02em;
  margin: 2.6rem 0 .9rem;
}
.prose h2 { font-size: 1.35rem; }
.prose h3 { font-size: 1.18rem; }
.prose h4 { font-size: 1.05rem; }
.prose h5 { font-size: .98rem; color: var(--ink-soft); }
.prose p { margin: 0 0 1.3rem; }
.prose ul, .prose ol { margin: 0 0 1.3rem; padding-inline-start: 1.4rem; }
.prose li { margin-bottom: .45rem; }
.prose strong { font-weight: 700; }
.prose a { text-decoration-thickness: 1px; }
.prose a:hover { text-decoration-thickness: 2px; }
.prose blockquote {
  margin: 1.6rem 0;
  padding: .2rem 0 .2rem 1.2rem;
  border-inline-start: 2px solid var(--line-strong);
  color: var(--ink-soft);
}
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.4rem 0; }
.prose code {
  font-size: .88em;
  padding: .1rem .4rem;
  background: var(--band-warm);
  border: 1px solid var(--line);
}
.prose img { display: block; margin-block: 1.5rem; }

.attribution {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-size: .85rem;
  color: var(--ink-faint);
}
.attribution h2 {
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--ink-faint);
  margin: 0 0 .6rem;
}
.attribution p { margin: 0; line-height: 1.8; }

.postDisclaimer {
  margin-top: 2rem;
  padding: 1.1rem 1.3rem;
  background: var(--band-warm);
  border: 1px solid var(--line);
  font-size: .85rem;
  line-height: 1.75;
  color: var(--ink-soft);
}

.postNav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin: 3rem 0 0;
  background: var(--line);
  border-block: 1px solid var(--line);
}
.postNav a {
  display: block;
  padding: 1.2rem 1.3rem;
  background: var(--bg);
  text-decoration: none;
  font-size: .9rem;
  line-height: 1.65;
  transition: background-color .18s ease;
}
.postNav a:hover { background: var(--band-warm); }
.postNav a span {
  display: block;
  font-size: .74rem;
  letter-spacing: .12em;
  color: var(--ink-faint);
  margin-bottom: .35rem;
}
.postNav__next { text-align: end; }

.back { margin: 1.5rem 0 var(--band-y); font-size: .9rem; }

/* ---------------------------------------------------------------- 頁尾 */

.siteFooter {
  border-top: 1px solid var(--line);
  background: var(--band-warm);
  padding-block: clamp(2.5rem, 5vw, 4rem) 2rem;
  font-size: .88rem;
}
.siteFooter__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem 3rem;
}
.siteFooter__zh {
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: .06em;
  margin: 0;
}
.siteFooter__en {
  font-family: var(--font-display);
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--ink-faint);
  margin: .25rem 0 0;
}
.siteFooter__tag {
  font-size: .85rem;
  letter-spacing: .08em;
  color: var(--ink-soft);
  margin: .8rem 0 0;
}
.siteFooter__nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .55rem;
}
.siteFooter__nav a {
  text-decoration: none;
  color: var(--ink-soft);
  transition: color .18s ease;
}
.siteFooter__nav a:hover { color: var(--ink); }

.siteFooter__base {
  margin-top: clamp(2rem, 4vw, 3rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-strong);
}
.disclaimer {
  margin: 0 0 .8rem;
  font-size: .82rem;
  line-height: 1.75;
  color: var(--ink-soft);
}
.colophon {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem 1.5rem;
  margin: 0;
  font-size: .8rem;
  color: var(--ink-faint);
}
.siteViews [data-count] { font-variant-numeric: tabular-nums; }

/* ------------------------------------------------------------- 響應式 */

@media (max-width: 1080px) {
  .capGrid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .postGrid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .navToggle { display: flex; }

  .sitenav {
    display: none;
    position: absolute;
    top: 100%;
    left: calc(var(--gutter) * -1);
    right: calc(var(--gutter) * -1);
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    padding: .5rem var(--gutter) 1.25rem;
  }
  .sitenav[data-open] { display: block; }
  .sitenav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .sitenav a {
    padding-block: .95rem;   /* 觸控目標高度 */
    border-bottom: 1px solid var(--line);
  }
  .sitenav a[aria-current="page"] { border-bottom-color: var(--ink); }

  .hero__inner { grid-template-columns: minmax(0, 1fr); }
  .hero__media { order: -1; max-width: 22rem; }

  .splitSection { grid-template-columns: minmax(0, 1fr); gap: 1.75rem; }
  .pillars { grid-template-columns: minmax(0, 1fr); }
  .philosophy__headline { max-width: none; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }

  .capGrid { grid-template-columns: minmax(0, 1fr); }
  .postGrid { grid-template-columns: minmax(0, 1fr); }
  .postNav { grid-template-columns: minmax(0, 1fr); }
  .postNav__next { text-align: start; }

  .timeline__row { grid-template-columns: minmax(0, 1fr); }
  .timeline__detail { grid-column: 1; }

  .hero__actions .btn,
  .clinicCta__actions .btn { flex: 1 1 auto; text-align: center; }

  .siteFooter__inner { flex-direction: column; }
}