/* ==========================================================================
   如是我聞：金剛心・照亮人間 — 共用樣式
   風格：黑金 × 極簡編輯感（圖像為主，文字精簡，長文另頁閱讀）
   ========================================================================== */

:root {
  --ink: #0a0908;
  --ink-2: #131110;
  --ink-3: #1a1714;
  --ink-line: rgba(212, 175, 85, 0.16);
  --gold: #c9a24b;
  --gold-bright: #e3c47e;
  --gold-dim: #8a6f34;
  --cream: #f3ecdd;
  --cream-dim: rgba(243, 236, 221, 0.66);
  --cream-faint: rgba(243, 236, 221, 0.40);
  --vermilion: #9a3324;
  --max-width: 1080px;
  --max-width-wide: 1240px;
  --max-width-read: 700px;
  --serif: "Noto Serif TC", "Songti TC", "PMingLiU", serif;
  --brush: "LXGW WenKai TC", "Noto Serif TC", serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  font-size: 18px;
  transition: font-size 0.15s ease;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.9;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}
.wrap.wide { max-width: var(--max-width-wide); }
.wrap.read { max-width: var(--max-width-read); }

/* ---------- 標題字體 ---------- */
h1, h2, h3, h4 {
  font-weight: 500;
  color: var(--gold-bright);
  letter-spacing: 0.04em;
  margin: 0 0 0.6em;
}

.brush {
  font-family: var(--brush);
  font-weight: 400;
  letter-spacing: 0.06em;
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 9, 8, 0.72);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--ink-line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}

.logo {
  font-size: 0.92rem;
  color: var(--gold-bright);
  letter-spacing: 0.1em;
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}
.logo small {
  font-size: 0.58rem;
  color: var(--cream-faint);
  letter-spacing: 0.26em;
  font-weight: 400;
  margin-top: 3px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 22px;
}

.font-ctrl {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--ink-line);
  border-radius: 3px;
  overflow: hidden;
}
.font-btn {
  background: none;
  border: none;
  border-right: 1px solid var(--ink-line);
  color: var(--cream-dim);
  font-family: var(--serif);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  padding: 6px 10px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.font-btn:last-child { border-right: none; }
.font-btn:hover { color: var(--gold-bright); }
.font-btn.active {
  background: var(--gold-dim);
  color: var(--ink);
  font-weight: 600;
}

nav.main-nav {
  display: flex;
  gap: 34px;
}
nav.main-nav a {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  color: var(--cream-dim);
  position: relative;
  padding-bottom: 4px;
  white-space: nowrap;
}
nav.main-nav a:hover,
nav.main-nav a.active {
  color: var(--gold-bright);
}
nav.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 1px;
  background: var(--gold);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--ink-line);
  color: var(--gold-bright);
  width: 40px;
  height: 40px;
  font-size: 1.1rem;
  cursor: pointer;
}

@media (max-width: 780px) {
  nav.main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--ink-2);
    border-bottom: 1px solid var(--ink-line);
    flex-direction: column;
    gap: 0;
    display: none;
  }
  nav.main-nav.open { display: flex; }
  nav.main-nav a {
    padding: 16px 28px;
    border-top: 1px solid var(--ink-line);
  }
  .nav-toggle { display: block; }
  .header-right { gap: 12px; }
  .font-btn { padding: 5px 8px; font-size: 0.68rem; }
}

/* ---------- Hero visual（首頁：主視覺全幅開場） ---------- */
.hero-visual {
  padding: 60px 0 30px;
  text-align: center;
}
.hero-visual .eyebrow {
  display: block;
  color: var(--gold);
  font-size: 0.76rem;
  letter-spacing: 0.4em;
  margin-bottom: 28px;
}
.hero-visual .visual-frame {
  max-width: 460px;
  margin: 0 auto;
}
.hero-visual .visual-frame img {
  width: 100%;
  display: block;
}
.hero-visual .hero-value {
  max-width: 480px;
  margin: 34px auto 0;
  color: var(--cream-dim);
  font-size: 1.02rem;
  line-height: 1.85;
}
.hero-visual .hero-cta {
  margin-top: 28px;
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
}
.scroll-cue {
  width: 1px;
  height: 54px;
  background: linear-gradient(var(--gold), transparent);
  margin: 46px auto 0;
}

.circle-motif {
  width: 66px;
  height: 66px;
  border: 1px solid var(--gold-dim);
  border-radius: 50%;
  margin: 0 auto 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 1.3rem;
}

/* ---------- Section ---------- */
section {
  position: relative;
  z-index: 1;
  padding: 100px 0;
  border-top: 1px solid var(--ink-line);
}
section.tight { padding: 60px 0; }
section.flush { border-top: none; padding-top: 0; }
section .kicker {
  color: var(--gold);
  font-size: 0.74rem;
  letter-spacing: 0.34em;
  margin-bottom: 16px;
  display: block;
}
section h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 400;
}
section h2 + p.section-lead {
  color: var(--cream-dim);
  max-width: 620px;
  margin-bottom: 2.4em;
}

.center { text-align: center; }
.center .section-lead { margin-left: auto; margin-right: auto; }

.lede {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  color: var(--cream-dim);
  font-size: 1rem;
  line-height: 2.1;
}

/* ---------- 極簡三欄（核心精神 / 統計） ---------- */
.plain-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
@media (max-width: 780px) { .plain-grid { grid-template-columns: 1fr; gap: 44px; } }
.plain-item {
  text-align: center;
  padding-top: 26px;
  border-top: 1px solid var(--ink-line);
}
.plain-item .num {
  font-family: var(--brush);
  font-size: 1.5rem;
  color: var(--gold-dim);
  display: block;
  margin-bottom: 14px;
}
.plain-item h3 {
  font-size: 1rem;
  margin-bottom: 0.7em;
}
.plain-item p {
  color: var(--cream-dim);
  font-size: 0.88rem;
  margin: 0;
}

.stat-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 30px;
  text-align: center;
}
@media (max-width: 900px) { .stat-row { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .stat-row { grid-template-columns: 1fr; } }
.stat-item .num {
  font-family: var(--brush);
  font-size: 2.1rem;
  color: var(--gold-bright);
  display: block;
  line-height: 1.1;
}
.stat-item .stat-label {
  color: var(--cream-faint);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  margin-top: 8px;
  display: block;
}

/* ---------- Pillar 圖像卡（四大內容產出 / 開場白特寫） ---------- */
.pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--ink-line);
}
@media (max-width: 900px) { .pillars { grid-template-columns: repeat(2, 1fr); } }

.pillar-card {
  position: relative;
  display: block;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--ink-2);
}
.pillar-card .pillar-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .7s ease, opacity .4s ease;
  opacity: 0.82;
}
.pillar-card:hover .pillar-img {
  transform: scale(1.045);
  opacity: 1;
}
.pillar-card .pillar-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 50% 40%, rgba(201,162,75,0.16), transparent 60%),
    linear-gradient(160deg, var(--ink-3), var(--ink));
  font-family: var(--brush);
  font-size: 3.6rem;
  color: var(--gold-dim);
}
.pillar-card .pillar-caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 26px 22px 22px;
  background: linear-gradient(to top, rgba(8,7,6,0.92) 10%, rgba(8,7,6,0.35) 65%, transparent);
}
.pillar-card .pillar-no {
  font-family: var(--brush);
  color: var(--gold);
  font-size: 0.82rem;
  display: block;
  margin-bottom: 6px;
}
.pillar-card h3 {
  font-size: 1.02rem;
  margin: 0 0 6px;
  color: var(--cream);
}
.pillar-card p {
  font-size: 0.78rem;
  color: var(--cream-dim);
  margin: 0;
}

/* ---------- 開場白特寫（首頁橫幅） ---------- */
.feature-split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 0;
  align-items: stretch;
  border: 1px solid var(--ink-line);
}
@media (max-width: 860px) { .feature-split { grid-template-columns: 1fr; } }
.feature-split .feature-visual {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--ink-2);
}
.feature-split .feature-visual img {
  width: 100%; height: 100%; object-fit: cover;
}
.feature-split .feature-visual .play-dot {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature-split .play-dot span {
  width: 62px; height: 62px;
  border-radius: 50%;
  border: 1px solid var(--gold-bright);
  background: rgba(10,9,8,0.55);
  display: flex; align-items: center; justify-content: center;
  color: var(--gold-bright);
  font-size: 1.1rem;
  backdrop-filter: blur(2px);
}
.feature-split .feature-text {
  padding: 48px 46px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.feature-split .kicker { margin-bottom: 14px; }
.feature-split h2 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); margin-bottom: 0.5em; }
.feature-split p { color: var(--cream-dim); font-size: 0.92rem; margin: 0 0 1.6em; }

/* ---------- 全年四季敘事（精簡時間軸） ---------- */
.quarters {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
@media (max-width: 900px) { .quarters { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .quarters { grid-template-columns: 1fr; } }

.quarter-card {
  border-top: 1px solid var(--ink-line);
  padding: 26px 24px 6px 0;
}
.quarters .quarter-card:not(:last-child) { border-right: 1px solid var(--ink-line); }
@media (max-width: 900px) {
  .quarters .quarter-card:nth-child(2n) { border-right: none; }
}
@media (max-width: 560px) {
  .quarters .quarter-card { border-right: none !important; }
}
.quarter-card .q-tag {
  color: var(--gold);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  margin-bottom: 12px;
  display: block;
}
.quarter-card h3 {
  font-size: 1.08rem;
  margin-bottom: 0.4em;
}
.quarter-card .q-sub {
  color: var(--cream-faint);
  font-size: 0.8rem;
  margin-bottom: 1.3em;
}
.quarter-card ul {
  margin: 0;
  padding-left: 1.1em;
  color: var(--cream-dim);
  font-size: 0.84rem;
}
.quarter-card li { margin-bottom: 0.5em; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 13px 32px;
  border: 1px solid var(--gold);
  color: var(--gold-bright);
  font-size: 0.86rem;
  letter-spacing: 0.14em;
  transition: background .25s ease, color .25s ease;
}
.btn:hover { background: var(--gold); color: var(--ink); }
.btn.solid {
  background: var(--gold);
  color: var(--ink);
}
.btn.solid:hover { background: var(--gold-bright); }
.btn.ghost {
  border-color: var(--ink-line);
  color: var(--cream-dim);
}
.btn.ghost:hover { border-color: var(--gold); color: var(--gold-bright); background: none; }

.link-arrow {
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  color: var(--gold);
  white-space: nowrap;
}
.link-arrow:hover { color: var(--gold-bright); }

/* ---------- Page header (sub pages) ---------- */
.page-header {
  padding: 68px 0 46px;
  text-align: center;
  border-bottom: 1px solid var(--ink-line);
}
.page-header .kicker {
  color: var(--gold);
  font-size: 0.76rem;
  letter-spacing: 0.32em;
  display: block;
  margin-bottom: 16px;
}
.page-header h1 {
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  font-weight: 400;
}
.page-header p {
  max-width: 620px;
  margin: 18px auto 0;
  color: var(--cream-dim);
  font-size: 0.92rem;
}
.page-header .breadcrumb {
  display: block;
  margin-bottom: 20px;
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--gold-dim);
}
.page-header .breadcrumb:hover { color: var(--gold-bright); }

/* ---------- 極簡進度列 ---------- */
.status-line {
  text-align: center;
  color: var(--cream-dim);
  font-size: 0.86rem;
  letter-spacing: 0.02em;
}
.status-line .status-value { color: var(--gold-bright); }

/* ---------- 編輯式列表（有聲講記 / 感應動畫 / 金句海報 目錄） ---------- */
.index-list { margin-top: 10px; }
.index-row {
  display: flex;
  gap: 32px;
  align-items: center;
  padding: 30px 0;
  border-top: 1px solid var(--ink-line);
}
.index-list .index-row:last-child { border-bottom: 1px solid var(--ink-line); }
@media (max-width: 700px) {
  .index-row { flex-direction: column; align-items: flex-start; gap: 16px; }
}

.index-row .idx-thumb {
  width: 168px;
  flex-shrink: 0;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--ink-2);
  position: relative;
}
.index-row.wide-thumb .idx-thumb { aspect-ratio: 16 / 9; }
.index-row .idx-thumb img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .5s ease;
}
.index-row:hover .idx-thumb img { transform: scale(1.05); }
.index-row .idx-thumb .play-mark {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--gold-bright);
  font-size: 1.4rem;
  background: rgba(10,9,8,0.15);
}
@media (max-width: 700px) { .index-row .idx-thumb { width: 100%; aspect-ratio: 16/10; } }

.index-row .idx-body { flex: 1; min-width: 0; }
.index-row .idx-no {
  font-family: var(--brush);
  color: var(--gold);
  font-size: 0.86rem;
  letter-spacing: 0.05em;
}
.index-row .idx-meta {
  color: var(--cream-faint);
  font-size: 0.76rem;
  margin-left: 10px;
}
.index-row h3 {
  font-size: 1.12rem;
  margin: 0.35em 0 0.5em;
  font-weight: 400;
}
.index-row p {
  color: var(--cream-dim);
  font-size: 0.88rem;
  margin: 0 0 0.9em;
  max-width: 640px;
}
.index-row .idx-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.index-row.disabled { opacity: 0.5; }
.index-row.disabled .idx-thumb { display: flex; align-items: center; justify-content: center; }
.index-row.disabled .idx-thumb::after {
  content: "尚未發布";
  font-size: 0.72rem;
  color: var(--cream-faint);
  letter-spacing: 0.1em;
}

.episode-status {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--gold-dim);
  border: 1px solid var(--gold-dim);
  padding: 4px 12px;
  white-space: nowrap;
}
.episode-status.status-published {
  color: var(--gold-bright);
  border-color: var(--gold);
}
.episode-status.status-production {
  color: #e0b96a;
  border-color: #e0b96a;
}
.episode-status.status-planned {
  color: var(--cream-faint);
  border-color: var(--ink-line);
}

/* ---------- 影片嵌入（響應式 16:9） ---------- */
.video-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin-bottom: 1.4em;
  overflow: hidden;
  border: 1px solid var(--ink-line);
  background: var(--ink);
}
.video-embed iframe,
.video-embed video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  background: var(--ink);
  object-fit: cover;
}

/* ---------- Essay / 內文閱讀（開場白、金句小論文） ---------- */
.essay p {
  color: var(--cream-dim);
  font-size: 0.98rem;
  margin: 0 0 1.3em;
}
.essay p.emphasis {
  font-family: var(--brush);
  color: var(--gold-bright);
  font-size: 1.1rem;
  text-align: center;
  margin: 1.8em 0;
  line-height: 1.9;
}
.essay h4 {
  color: var(--gold);
  font-size: 0.88rem;
  letter-spacing: 0.1em;
  margin: 1.6em 0 0.7em;
}
.essay strong { color: var(--gold-bright); font-weight: 600; }
.essay .sutra-title {
  font-family: var(--brush);
  color: var(--gold-bright);
  font-size: 1.6rem;
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.08em;
  margin: 2.4em 0 0.3em;
}
.essay .sutra-translator {
  text-align: center;
  color: var(--gold-dim);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  margin: 0 0 2em;
}
.essay .fen-title {
  font-family: var(--brush);
  color: var(--gold);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin: 1.8em 0 0.6em;
}
.essay p.sutra-text {
  font-family: var(--brush);
  color: var(--gold-bright);
  font-size: 1.1rem;
  line-height: 1.9;
  text-indent: 2em;
  margin: 0 0 1.2em;
}
.essay p.pull-quote {
  color: var(--gold-bright);
  font-style: italic;
  font-size: 0.98rem;
  border-left: 2px solid var(--gold-dim);
  padding-left: 14px;
  margin: 0 0 1.2em;
  line-height: 1.7;
}

/* ---------- 金句海報大圖（內頁） ---------- */
.detail-visual {
  max-width: 420px;
  margin: 0 auto 2.6em;
  text-align: center;
}
.detail-visual a { display: inline-block; }
.detail-visual img {
  width: 100%;
  border: 1px solid var(--gold-dim);
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}
.detail-visual .view-full {
  display: block;
  margin-top: 14px;
  color: var(--gold);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
}
.detail-visual .view-full:hover { color: var(--gold-bright); }
.detail-visual.placeholder-visual {
  aspect-ratio: 4/5;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed var(--ink-line);
  color: var(--cream-faint);
  font-size: 0.86rem;
}

/* ---------- 常駐展開區塊（完整小論文／參考文獻） ---------- */
.essay-full {
  margin: 1.6em 0;
  border-top: 1px solid var(--ink-line);
  padding-top: 1.4em;
}
.essay-label {
  display: block;
  color: var(--gold);
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  margin-bottom: 1.2em;
}

/* ---------- 經文引句區塊 ---------- */
.sutra-quote {
  border-left: 2px solid var(--gold-dim);
  padding: 4px 0 4px 18px;
  margin: 1.2em 0;
}
.sutra-quote p {
  font-family: var(--brush);
  color: var(--gold-bright);
  font-size: 1rem;
  margin: 0 0 0.5em;
  line-height: 1.7;
}
.sutra-quote p:last-child { margin-bottom: 0; }

/* ---------- 條目間導覽（上一則／下一則） ---------- */
.entry-nav {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--ink-line);
  padding-top: 30px;
  margin-top: 20px;
  flex-wrap: wrap;
}
.entry-nav a { font-size: 0.84rem; color: var(--cream-dim); max-width: 45%; }
.entry-nav a:hover { color: var(--gold-bright); }
.entry-nav .nav-label { display: block; color: var(--gold-dim); font-size: 0.72rem; letter-spacing: 0.15em; margin-bottom: 6px; }
.entry-nav .next { text-align: right; margin-left: auto; }

/* ---------- Form / register page ---------- */
.info-box {
  border: 1px solid var(--ink-line);
  padding: 26px 28px;
  margin-bottom: 20px;
}
.info-box .label {
  color: var(--gold);
  font-size: 0.76rem;
  letter-spacing: 0.2em;
  margin-bottom: 8px;
  display: block;
}
.info-box .value {
  font-size: 1.3rem;
  color: var(--gold-bright);
}

.form-embed {
  border: 1px dashed var(--gold-dim);
  padding: 50px 30px;
  text-align: center;
  color: var(--cream-faint);
  font-size: 0.92rem;
}
.form-embed code {
  display: block;
  margin-top: 14px;
  color: var(--gold);
  font-size: 0.8rem;
  background: var(--ink);
  padding: 10px 14px;
}

iframe.gform {
  width: 100%;
  min-height: 900px;
  border: none;
  background: var(--cream);
}

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--ink-line);
  padding: 54px 0 46px;
  text-align: center;
  color: var(--cream-faint);
  font-size: 0.8rem;
}
footer .foot-links {
  margin-bottom: 18px;
}
footer .foot-links a {
  margin: 0 12px;
  color: var(--cream-dim);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}
footer .foot-links a:hover { color: var(--gold-bright); }
footer p { margin: 0.35em 0; }

/* ---------- misc ---------- */
.tag-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 1.6em;
}
.tag {
  border: 1px solid var(--ink-line);
  color: var(--cream-faint);
  font-size: 0.74rem;
  padding: 5px 14px;
}

.poem {
  font-family: var(--brush);
  color: var(--gold-dim);
  font-size: 1.02rem;
  line-height: 2.2;
  text-align: center;
}

.source {
  color: var(--gold-dim);
  font-size: 0.8rem;
  margin-top: 1.2em;
}
.dedication {
  color: var(--cream-faint);
  font-size: 0.82rem;
  font-style: italic;
  border-left: 2px solid var(--gold-dim);
  padding-left: 14px;
  margin-top: 1em;
}

/* ---------- Legacy grid/card utility（結緣頁核心說明） ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card { border-top: 1px solid var(--ink-line); padding-top: 26px; }
.card h3 { font-size: 1.05rem; margin-bottom: 0.5em; }
.card p { color: var(--cream-dim); font-size: 0.92rem; margin: 0; }
.card .num {
  font-family: var(--brush);
  font-size: 1.5rem;
  color: var(--gold-dim);
  display: block;
  margin-bottom: 10px;
}

/* ---------- 手風琴列表（有聲講記 / 感應動畫故事，圖像縮圖 + 點按展開） ---------- */
.episodes { margin-top: 10px; }
.episode { border-top: 1px solid var(--ink-line); }
.episodes .episode:last-child,
.episode:last-of-type { border-bottom: 1px solid var(--ink-line); }
.episode-head {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 24px 0;
  background: none;
  border: none;
  color: var(--cream);
  cursor: pointer;
  text-align: left;
  font-family: var(--serif);
  font-size: 1rem;
}
.episode-head .ep-thumb {
  width: 128px;
  flex-shrink: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--ink-2);
  position: relative;
}
.episode-head .ep-thumb img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 700px) { .episode-head .ep-thumb { width: 88px; } }
.episode-head .ep-no {
  font-family: var(--brush);
  color: var(--gold);
  font-size: 1.2rem;
  min-width: 40px;
}
.episode-head .ep-title { flex: 1; color: var(--gold-bright); }
.episode-head .ep-icon {
  color: var(--gold-dim);
  transition: transform .25s ease;
  font-size: 0.85rem;
}
.episode.open .ep-icon { transform: rotate(45deg); }

.episode-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
  border-top: 1px solid transparent;
}
.episode.open .episode-body {
  border-top: 1px solid var(--ink-line);
}
.episode-body-inner {
  padding: 24px 0 34px;
  color: var(--cream-dim);
  font-size: 0.92rem;
}
.episode-body-inner p { margin: 0 0 1em; }