/*
 * 大師課（masterclass）樣式。
 *
 * 本站沒有 Tailwind 建置流程：public/assets/css/app.css 是舊站「編譯後」的 Tailwind，
 * 只含舊站用過的 class。所以這個模組的樣式全部自己寫，統一 mc- 前綴，不依賴任何 utility class，
 * 也不覆蓋既有樣式（頁首頁尾仍是美育的 Chrome 元件）。
 *
 * 版面對標 https://shifu.tw/ 的區塊結構；配色用美育自己的（黑底＋金 #f2d8a0），
 * 不套參考站的品牌色。
 */

.mc {
  --mc-bg: #0d0d0e;
  --mc-card: #16181a;
  --mc-line: #26282c;
  --mc-text: #f2f2f2;
  --mc-dim: #a9a9ad;
  --mc-silver: #c0c0c0;
  --mc-gold: #f2d8a0;
  --mc-gold-dim: #8d7a4e;

  background: var(--mc-bg);
  color: var(--mc-text);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

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

.mc img {
  max-width: 100%;
}

.mc a {
  color: inherit;
  text-decoration: none;
}

.mc-wrap {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ── 示範資料提示（每頁頂端必有）──────────────────────────── */
.mc-demo-note {
  background: #2a2214;
  border-bottom: 1px solid var(--mc-gold-dim);
  color: var(--mc-gold);
  font-size: 13px;
  line-height: 1.5;
  padding: 10px 16px;
  text-align: center;
}

.mc-demo-note strong {
  font-weight: 600;
}

/* ── 麵包屑 / 頁首 ──────────────────────────────────────────── */
.mc-crumbs {
  color: var(--mc-dim);
  font-size: 13px;
  padding: 18px 0 0;
}

.mc-crumbs a:hover {
  color: var(--mc-gold);
}

.mc-crumbs span {
  margin: 0 6px;
}

/* ── 大師課自己的次選單（不動全站主選單）───────────────────── */
.mc-subnav {
  border-bottom: 1px solid var(--mc-line);
  background: #111213;
}

.mc-subnav-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  align-items: center;
  padding-top: 12px;
  padding-bottom: 12px;
}

.mc-subnav a {
  color: var(--mc-silver);
  font-size: 15px;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.mc-subnav a:hover {
  color: var(--mc-gold);
}

.mc-subnav a.on {
  color: var(--mc-gold);
  border-bottom-color: var(--mc-gold);
}

/* ── 搜尋課程 ───────────────────────────────────────────────── */
.mc-search {
  padding: 36px 0 8px;
}

.mc-search-form {
  display: flex;
  gap: 8px;
  max-width: 640px;
  margin: 0 auto;
}

.mc-search-form input {
  flex: 1 1 auto;
  min-width: 0;
  background: var(--mc-card);
  border: 1px solid var(--mc-line);
  border-radius: 999px;
  color: var(--mc-text);
  font-size: 15px;
  padding: 11px 18px;
}

.mc-search-form input::placeholder {
  color: #6f6f74;
}

.mc-search-form button {
  flex: 0 0 auto;
  background: var(--mc-gold);
  border: 0;
  border-radius: 999px;
  color: #17130a;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  padding: 11px 22px;
}

/* ── 區塊標題 ───────────────────────────────────────────────── */
.mc-section {
  padding: 34px 0;
}

.mc-section-head {
  align-items: baseline;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-bottom: 18px;
}

.mc-section-head h2 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 1px;
  margin: 0;
  position: relative;
  padding-left: 12px;
}

.mc-section-head h2::before {
  background: var(--mc-gold);
  border-radius: 2px;
  content: "";
  height: 18px;
  left: 0;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
}

.mc-section-head .mc-more {
  color: var(--mc-dim);
  font-size: 13px;
  margin-left: auto;
}

.mc-section-head .mc-more:hover {
  color: var(--mc-gold);
}

.mc-section-lead {
  color: var(--mc-dim);
  font-size: 13px;
  margin: -8px 0 16px;
}

/* ── 課程卡 ─────────────────────────────────────────────────── */
.mc-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.mc-grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

/* 橫向捲動列（對標原站 scroll-track），手機也不會撐破版面 */
.mc-rail {
  display: grid;
  grid-auto-columns: minmax(250px, 1fr);
  grid-auto-flow: column;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 10px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.mc-rail > * {
  scroll-snap-align: start;
}

.mc-rail-sm {
  grid-auto-columns: minmax(170px, 190px);
}

.mc-card {
  background: var(--mc-card);
  border: 1px solid var(--mc-line);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.mc-card:hover {
  border-color: var(--mc-gold-dim);
  transform: translateY(-2px);
}

.mc-card-media {
  background: #1c1e21;
  padding: 12px;
  position: relative;
}

.mc-card-media img {
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  display: block;
  height: auto;
  object-fit: cover;
  width: 100%;
}

.mc-noimg {
  align-items: center;
  aspect-ratio: 16 / 9;
  background: #232529;
  border-radius: 8px;
  color: #6f6f74;
  display: flex;
  font-size: 13px;
  justify-content: center;
}

.mc-ribbon {
  background: var(--mc-gold);
  border-radius: 6px;
  color: #17130a;
  font-size: 12px;
  font-weight: 600;
  left: 20px;
  padding: 3px 9px;
  position: absolute;
  top: 20px;
  z-index: 2;
}

.mc-ribbon-off {
  background: #8b0000;
  color: #fff;
}

.mc-card-body {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  gap: 6px;
  padding: 4px 16px 16px;
}

.mc-price {
  align-items: baseline;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mc-price-now {
  font-size: 22px;
  font-weight: 700;
}

.mc-price-was {
  color: var(--mc-silver);
  font-size: 12px;
  text-decoration: line-through;
}

.mc-card-teacher {
  font-size: 17px;
  font-weight: 400;
  margin: 0;
}

.mc-card-title {
  color: var(--mc-silver);
  font-size: 15px;
  margin: 0;
}

.mc-progress {
  background: #2e3136;
  border-radius: 999px;
  height: 10px;
  margin-top: 4px;
  overflow: hidden;
  width: 100%;
}

.mc-progress > i {
  background: var(--mc-gold);
  display: block;
  height: 100%;
}

.mc-card-meta {
  color: var(--mc-silver);
  display: flex;
  flex-wrap: wrap;
  font-size: 13px;
  gap: 4px 14px;
  justify-content: space-between;
  margin-top: 2px;
}

.mc-divider {
  background: var(--mc-line);
  border: 0;
  height: 1px;
  margin: 6px 0 2px;
}

/* ── 熱門排行：純名次版 ─────────────────────────────────────── */
.mc-rank-card {
  display: block;
  position: relative;
}

.mc-rank-card img {
  aspect-ratio: 3 / 4;
  border-radius: 6px;
  display: block;
  object-fit: cover;
  width: 100%;
}

.mc-rank-no {
  color: var(--mc-gold);
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.mc-rank-name {
  font-size: 15px;
  margin: 10px 0 2px;
  text-align: center;
}

.mc-rank-sub {
  color: var(--mc-silver);
  font-size: 13px;
  margin: 0;
  text-align: center;
}

/* ── 熱門排行：帶一句課程簡介的版式 ─────────────────────────── */
.mc-hotlist {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.mc-hot-row {
  align-items: center;
  background: var(--mc-card);
  border: 1px solid var(--mc-line);
  border-radius: 12px;
  display: flex;
  gap: 12px;
  padding: 12px;
  position: relative;
}

.mc-hot-row img {
  border-radius: 8px;
  flex: 0 0 64px;
  height: 64px;
  object-fit: cover;
  width: 64px;
}

.mc-hot-rank {
  color: var(--mc-gold);
  flex: 0 0 auto;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  min-width: 26px;
  text-align: center;
}

.mc-hot-text {
  min-width: 0;
}

.mc-hot-text p {
  margin: 0;
}

.mc-hot-name {
  font-size: 15px;
}

.mc-hot-desc {
  color: var(--mc-silver);
  font-size: 12.5px;
  margin-top: 3px !important;
}

/* ── 課程分類 tabs ──────────────────────────────────────────── */
.mc-tabs {
  border-bottom: 1px solid var(--mc-line);
  display: flex;
  gap: 6px;
  margin-bottom: 18px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.mc-tab {
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  color: var(--mc-silver);
  cursor: pointer;
  font-size: 15px;
  padding: 8px 12px;
  white-space: nowrap;
}

.mc-tab:hover {
  color: var(--mc-text);
}

.mc-tab.on {
  border-bottom-color: var(--mc-gold);
  color: var(--mc-gold);
}

/* ── 課程詳情頁 ─────────────────────────────────────────────── */
.mc-detail {
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1fr) 320px;
  padding: 24px 0 48px;
}

.mc-hero-title {
  font-size: 26px;
  font-weight: 600;
  line-height: 1.35;
  margin: 6px 0 4px;
}

.mc-hero-sub {
  color: var(--mc-silver);
  font-size: 15px;
  margin: 0 0 16px;
}

.mc-fund {
  background: var(--mc-card);
  border: 1px solid var(--mc-line);
  border-radius: 12px;
  margin-bottom: 22px;
  padding: 16px;
}

.mc-fund-head {
  align-items: baseline;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  font-size: 14px;
  margin-bottom: 10px;
}

.mc-fund-head strong {
  color: var(--mc-gold);
  font-weight: 700;
}

.mc-fund-head .mc-fund-pct {
  margin-left: auto;
}

.mc-countdown {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.mc-countdown-label {
  color: var(--mc-silver);
  font-size: 13px;
  margin-right: 2px;
}

.mc-cd-block {
  align-items: baseline;
  background: #202226;
  border: 1px solid var(--mc-line);
  border-radius: 8px;
  display: inline-flex;
  gap: 3px;
  min-width: 56px;
  justify-content: center;
  padding: 6px 8px;
}

.mc-cd-num {
  font-size: 19px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--mc-gold);
}

.mc-cd-unit {
  color: var(--mc-silver);
  font-size: 12px;
}

.mc-info-grid {
  display: grid;
  gap: 12px 24px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0 0 26px;
}

.mc-info-item {
  border-bottom: 1px dashed var(--mc-line);
  display: flex;
  gap: 10px;
  justify-content: space-between;
  padding-bottom: 8px;
}

.mc-info-label {
  color: var(--mc-silver);
  font-size: 14px;
}

.mc-info-value {
  font-size: 14px;
  text-align: right;
}

.mc-anchor-nav {
  border-bottom: 1px solid var(--mc-line);
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  overflow-x: auto;
  position: sticky;
  top: 0;
  background: var(--mc-bg);
  z-index: 5;
}

.mc-anchor-nav a {
  border-bottom: 2px solid transparent;
  color: var(--mc-silver);
  flex: 1 1 0;
  font-size: 15px;
  padding: 10px 8px;
  text-align: center;
  white-space: nowrap;
}

.mc-anchor-nav a:hover {
  color: var(--mc-gold);
  border-bottom-color: var(--mc-gold-dim);
}

.mc-block {
  margin-bottom: 34px;
  scroll-margin-top: 56px;
}

.mc-block h3 {
  border-left: 3px solid var(--mc-gold);
  font-size: 19px;
  font-weight: 600;
  margin: 0 0 14px;
  padding-left: 10px;
}

.mc-intro {
  background: var(--mc-card);
  border: 1px solid var(--mc-line);
  border-radius: 12px;
  color: #e6e6e6;
  font-size: 15px;
  padding: 18px;
  white-space: pre-wrap;
  word-break: break-word;
}

.mc-intro-imgs {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.mc-intro-imgs img {
  border-radius: 10px;
  display: block;
  width: 100%;
}

.mc-video {
  aspect-ratio: 16 / 9;
  border-radius: 12px;
  margin-bottom: 22px;
  overflow: hidden;
  width: 100%;
}

.mc-video iframe {
  border: 0;
  height: 100%;
  width: 100%;
}

/* 章 → 單元兩層（用 details/summary，不需要 JS） */
.mc-acc {
  border: 1px solid var(--mc-line);
  border-radius: 12px;
  overflow: hidden;
}

.mc-chapter {
  border-bottom: 1px solid var(--mc-line);
}

.mc-chapter:last-child {
  border-bottom: 0;
}

.mc-chapter > summary {
  align-items: center;
  background: var(--mc-card);
  cursor: pointer;
  display: flex;
  gap: 12px;
  font-size: 15px;
  list-style: none;
  padding: 14px 16px;
}

.mc-chapter > summary::-webkit-details-marker {
  display: none;
}

.mc-chapter > summary::after {
  content: "＋";
  color: var(--mc-gold);
  margin-left: 6px;
}

.mc-chapter[open] > summary::after {
  content: "－";
}

.mc-chapter-title {
  flex: 1 1 auto;
  min-width: 0;
}

.mc-chapter-meta {
  color: var(--mc-silver);
  font-size: 13px;
  white-space: nowrap;
}

.mc-units {
  background: #131416;
  list-style: none;
  margin: 0;
  padding: 4px 0;
}

.mc-units li {
  border-top: 1px solid #1d1f22;
  color: #d8d8d8;
  font-size: 14px;
  padding: 10px 16px 10px 34px;
  position: relative;
}

.mc-units li::before {
  color: var(--mc-gold-dim);
  content: "▸";
  left: 16px;
  position: absolute;
}

/* 師父卡 */
.mc-teacher-card {
  align-items: flex-start;
  background: var(--mc-card);
  border: 1px solid var(--mc-line);
  border-radius: 12px;
  display: flex;
  gap: 18px;
  padding: 18px;
}

.mc-teacher-card img {
  border-radius: 50%;
  flex: 0 0 96px;
  height: 96px;
  object-fit: cover;
  width: 96px;
}

.mc-teacher-card h4 {
  font-size: 18px;
  margin: 0 0 4px;
}

.mc-teacher-role {
  color: var(--mc-gold);
  font-size: 13px;
  margin: 0 0 8px;
}

.mc-teacher-bio {
  color: var(--mc-silver);
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
  white-space: pre-line;
}

/* FAQ */
.mc-faq-group {
  color: var(--mc-gold);
  font-size: 15px;
  font-weight: 600;
  margin: 22px 0 10px;
}

.mc-faq details {
  background: var(--mc-card);
  border: 1px solid var(--mc-line);
  border-radius: 10px;
  margin-bottom: 8px;
}

.mc-faq summary {
  cursor: pointer;
  font-size: 15px;
  list-style: none;
  padding: 13px 16px;
}

.mc-faq summary::-webkit-details-marker {
  display: none;
}

.mc-faq summary::after {
  content: "＋";
  color: var(--mc-gold);
  float: right;
}

.mc-faq details[open] summary::after {
  content: "－";
}

.mc-faq .mc-faq-a {
  border-top: 1px solid var(--mc-line);
  color: var(--mc-silver);
  font-size: 14px;
  line-height: 1.8;
  padding: 13px 16px;
  white-space: pre-wrap;
  word-break: break-word;
}

/* 側欄：方案與報名說明 */
.mc-side {
  align-self: start;
  position: sticky;
  top: 16px;
}

.mc-plan {
  background: var(--mc-card);
  border: 1px solid var(--mc-line);
  border-radius: 12px;
  margin-bottom: 16px;
  overflow: hidden;
}

.mc-plan img {
  display: block;
  width: 100%;
}

.mc-plan-body {
  padding: 16px;
}

.mc-plan-name {
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 8px;
}

.mc-plan-desc {
  color: var(--mc-silver);
  font-size: 13px;
  line-height: 1.7;
  margin: 0 0 12px;
  white-space: pre-line;
}

.mc-plan-price {
  color: var(--mc-gold);
  font-size: 21px;
  font-weight: 700;
}

/* 沒接上的購買 / 報名流程：不放按了沒反應的按鈕 */
.mc-notice {
  background: #1d1a12;
  border: 1px dashed var(--mc-gold-dim);
  border-radius: 10px;
  color: var(--mc-gold);
  font-size: 14px;
  line-height: 1.7;
  margin-top: 12px;
  padding: 12px 14px;
  text-align: center;
}

/* ── 師父列表 ───────────────────────────────────────────────── */
.mc-teacher-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.mc-teacher-item {
  align-items: flex-start;
  background: var(--mc-card);
  border: 1px solid var(--mc-line);
  border-radius: 12px;
  display: flex;
  gap: 16px;
  padding: 16px;
}

.mc-teacher-item:hover {
  border-color: var(--mc-gold-dim);
}

.mc-teacher-item img {
  border-radius: 50%;
  flex: 0 0 72px;
  height: 72px;
  object-fit: cover;
  width: 72px;
}

.mc-teacher-item .mc-avatar-blank {
  align-items: center;
  background: #232529;
  border-radius: 50%;
  color: #6f6f74;
  display: flex;
  flex: 0 0 72px;
  font-size: 22px;
  height: 72px;
  justify-content: center;
  width: 72px;
}

.mc-teacher-item h3 {
  font-size: 16px;
  margin: 0 0 4px;
}

.mc-teacher-item .mc-t-more {
  color: var(--mc-gold);
  display: inline-block;
  font-size: 13px;
  margin-top: 8px;
}

/* ── 文章 ───────────────────────────────────────────────────── */
.mc-article-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.mc-article-card {
  background: var(--mc-card);
  border: 1px solid var(--mc-line);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.mc-article-card:hover {
  border-color: var(--mc-gold-dim);
}

.mc-article-card img {
  aspect-ratio: 16 / 9;
  display: block;
  object-fit: cover;
  width: 100%;
}

.mc-article-body {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  gap: 8px;
  padding: 14px 16px 16px;
}

.mc-article-title {
  font-size: 16px;
  margin: 0;
}

.mc-article-desc {
  color: var(--mc-silver);
  font-size: 13.5px;
  margin: 0;
}

.mc-article-meta {
  align-items: center;
  color: var(--mc-dim);
  display: flex;
  font-size: 12.5px;
  gap: 8px;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--mc-line);
}

.mc-article-meta img {
  aspect-ratio: auto;
  border-radius: 50%;
  height: 22px;
  object-fit: cover;
  width: 22px;
}

/* 熱門文章（首頁右欄，帶名次的清單）*/
.mc-hotarticles {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mc-hotarticles li {
  border-bottom: 1px solid var(--mc-line);
  display: flex;
  gap: 16px;
  padding: 12px 0;
}

.mc-hotarticles li:last-child {
  border-bottom: 0;
}

.mc-hotarticles .mc-ha-no {
  color: var(--mc-gold);
  font-size: 26px;
  font-weight: 600;
  line-height: 1.2;
  min-width: 26px;
}

.mc-hotarticles .mc-ha-date {
  color: var(--mc-dim);
  font-size: 12px;
  letter-spacing: 1px;
  margin: 0 0 4px;
}

.mc-hotarticles .mc-ha-title {
  font-size: 15px;
  margin: 0;
}

.mc-two-col {
  display: grid;
  gap: 32px;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
}

/* 文章內文 */
.mc-article-body-text {
  color: #e2e2e2;
  font-size: 15.5px;
  line-height: 1.9;
  white-space: pre-wrap;
  word-break: break-word;
}

.mc-article-imgs {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.mc-article-imgs img {
  border-radius: 10px;
  width: 100%;
}

/* ── 空狀態 / 來源標註 ──────────────────────────────────────── */
.mc-empty {
  background: var(--mc-card);
  border: 1px dashed var(--mc-line);
  border-radius: 12px;
  color: var(--mc-silver);
  font-size: 14px;
  padding: 28px 18px;
  text-align: center;
}

.mc-source {
  color: #6f6f74;
  font-size: 12px;
  padding: 8px 0 40px;
}

.mc-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.mc-chip {
  background: var(--mc-card);
  border: 1px solid var(--mc-line);
  border-radius: 999px;
  color: var(--mc-silver);
  font-size: 13.5px;
  padding: 6px 14px;
}

.mc-chip:hover {
  color: var(--mc-gold);
}

.mc-chip.on {
  background: var(--mc-gold);
  border-color: var(--mc-gold);
  color: #17130a;
}

/* ── RWD ────────────────────────────────────────────────────── */
@media (max-width: 1080px) {
  .mc-detail {
    grid-template-columns: minmax(0, 1fr);
  }
  .mc-side {
    position: static;
  }
  .mc-hotlist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .mc-grid,
  .mc-grid-4,
  .mc-article-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .mc-wrap {
    padding: 0 16px;
  }
  .mc-grid,
  .mc-grid-4,
  .mc-article-grid,
  .mc-hotlist,
  .mc-teacher-grid,
  .mc-two-col {
    grid-template-columns: minmax(0, 1fr);
  }
  .mc-info-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .mc-section {
    padding: 26px 0;
  }
  .mc-section-head h2 {
    font-size: 19px;
  }
  .mc-hero-title {
    font-size: 21px;
  }
  .mc-rail {
    grid-auto-columns: minmax(230px, 78%);
  }
  .mc-rail-sm {
    grid-auto-columns: minmax(150px, 46%);
  }
  .mc-teacher-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .mc-cd-block {
    min-width: 50px;
  }
}

/* 可收合區塊（課程介紹圖：來源站是一疊全寬長圖，預設收起來） */
.mc-collapse {
  margin-top: 14px;
}

.mc-collapse > summary {
  background: var(--mc-card);
  border: 1px solid var(--mc-line);
  border-radius: 10px;
  color: var(--mc-gold);
  cursor: pointer;
  font-size: 14px;
  list-style: none;
  padding: 11px 16px;
  text-align: center;
}

.mc-collapse > summary::-webkit-details-marker {
  display: none;
}

.mc-collapse > summary::after {
  content: " ▾";
}

.mc-collapse[open] > summary::after {
  content: " ▴";
}

/* ═══════════════════════════════════════════════════════════════
 * 購買 / 報名 / 訂單 / 學習（0014 之後新增）
 *
 * 課程是標準線上商品，走的是正常電商流程：看課 → 登入 → 下單 → 付款 → 開通 → 我的課程。
 * 這一段是那條路上用到的元件樣式，沿用上面同一組 CSS 變數，不引入新的配色。
 * ═══════════════════════════════════════════════════════════════ */

/* 次選單右側把會員入口推到底 */
.mc-subnav-spacer {
  flex: 1 1 auto;
}

/* ── 一般內容頁（購物車 / 結算 / 訂單 / 學習）──────────────── */
.mc-page {
  padding: 28px 16px 40px;
}

.mc-page-title {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  font-size: 24px;
  font-weight: 700;
  gap: 8px;
  margin: 0 0 18px;
}

.mc-link {
  border-bottom: 1px solid rgba(242, 216, 160, 0.35);
  color: var(--mc-gold);
}

.mc-link:hover {
  border-bottom-color: var(--mc-gold);
}

.mc-dimtext {
  color: var(--mc-dim);
  font-size: 13px;
}

/* ── 按鈕 ─────────────────────────────────────────────────── */
.mc-btn {
  border: 1px solid var(--mc-gold-dim);
  border-radius: 10px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: 15px;
  line-height: 1.4;
  padding: 11px 18px;
  text-align: center;
  transition: background-color 0.15s, color 0.15s, border-color 0.15s;
}

.mc-btn:disabled {
  cursor: default;
  opacity: 0.55;
}

.mc-btn-primary {
  background: var(--mc-gold);
  border-color: var(--mc-gold);
  color: #17140c;
  font-weight: 600;
}

.mc-btn-primary:hover:not(:disabled) {
  background: #ffe6b5;
}

.mc-btn-ghost {
  background: transparent;
  color: var(--mc-gold);
}

.mc-btn-ghost:hover:not(:disabled) {
  background: rgba(242, 216, 160, 0.1);
}

.mc-btn-mini {
  border-color: var(--mc-line);
  color: var(--mc-silver);
  font-size: 13px;
  padding: 6px 12px;
}

.mc-btn-mini:hover:not(:disabled) {
  border-color: var(--mc-gold-dim);
  color: var(--mc-gold);
}

/* ── 課程頁側欄的購買區 ───────────────────────────────────── */
.mc-buybox {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
}

.mc-buy-price {
  align-items: baseline;
  display: flex;
  gap: 10px;
}

.mc-buy-note {
  color: var(--mc-dim);
  font-size: 13px;
  line-height: 1.7;
  margin: 0;
}

.mc-buy-msg {
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.7;
  margin: 0;
  padding: 8px 12px;
}

.mc-buy-msg.err {
  background: #2a1616;
  border: 1px solid #5c2b2b;
  color: #ffbdbd;
}

.mc-buy-msg.ok {
  background: #16221a;
  border: 1px solid #2f5c3c;
  color: #b6e6c6;
}

/* 收藏（愛心） */
.mc-fav {
  align-items: center;
  background: transparent;
  border: 1px solid var(--mc-line);
  border-radius: 10px;
  color: var(--mc-silver);
  cursor: pointer;
  display: inline-flex;
  font-family: inherit;
  font-size: 14px;
  gap: 6px;
  justify-content: center;
  padding: 9px 14px;
}

.mc-fav:hover:not(:disabled) {
  border-color: var(--mc-gold-dim);
  color: var(--mc-gold);
}

.mc-fav.on {
  border-color: #a33b4a;
  color: #ff8a9b;
}

/* ── 表格（購物車 / 訂單 / 明細）──────────────────────────── */
.mc-table {
  background: var(--mc-card);
  border: 1px solid var(--mc-line);
  border-collapse: collapse;
  border-radius: 12px;
  overflow: hidden;
  width: 100%;
}

.mc-table th,
.mc-table td {
  border-bottom: 1px solid var(--mc-line);
  font-size: 14px;
  padding: 12px 14px;
  text-align: left;
  vertical-align: middle;
}

.mc-table th {
  color: var(--mc-dim);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.mc-table tbody tr:last-child td {
  border-bottom: 0;
}

.mc-table .num {
  text-align: right;
  white-space: nowrap;
}

/* 狀態標籤 */
.mc-tag {
  border: 1px solid var(--mc-line);
  border-radius: 999px;
  display: inline-block;
  font-size: 12.5px;
  padding: 3px 10px;
  white-space: nowrap;
}

.mc-tag.st-pending {
  border-color: #6b5a2a;
  color: #f0cf88;
}

.mc-tag.st-paid {
  border-color: #2f5c3c;
  color: #9fdcb4;
}

.mc-tag.st-cancelled {
  border-color: #3a3a3f;
  color: #9a9aa0;
}

.mc-tag.st-refunded {
  border-color: #5c2b2b;
  color: #ffbdbd;
}

/* 購物車小計列 */
.mc-total {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: space-between;
  margin-top: 18px;
}

.mc-total strong {
  color: var(--mc-gold);
  font-size: 19px;
}

/* 結算 / 訂單的金額小計 */
.mc-sum-row {
  border-bottom: 1px dashed var(--mc-line);
  display: flex;
  font-size: 14px;
  justify-content: space-between;
  padding: 8px 0;
}

.mc-sum-row:last-of-type {
  border-bottom: 0;
}

.mc-sum-row.total {
  align-items: baseline;
  border-bottom: 0;
  border-top: 1px solid var(--mc-line);
  margin-top: 4px;
  padding-top: 12px;
}

/* ── 付款區 ───────────────────────────────────────────────── */
.mc-paybox {
  background: var(--mc-card);
  border: 1px solid var(--mc-line);
  border-radius: 12px;
  padding: 14px 16px;
}

.mc-pay-on {
  color: var(--mc-gold);
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 8px;
}

/* 尚未接通的通道：用說明文字講清楚，不做按了沒反應的假按鈕 */
.mc-pay-off {
  border-top: 1px dashed var(--mc-line);
  color: var(--mc-dim);
  font-size: 13px;
  line-height: 1.8;
  margin: 12px 0 0;
  padding-top: 10px;
}

.mc-paylist {
  margin: 10px 0;
}

.mc-payrow {
  border-bottom: 1px dashed var(--mc-line);
  display: flex;
  font-size: 14px;
  gap: 14px;
  justify-content: space-between;
  padding: 8px 0;
}

.mc-payrow span {
  color: var(--mc-dim);
  flex: none;
}

.mc-payrow b {
  color: var(--mc-text);
  word-break: break-all;
}

/* ── 學習頁 ───────────────────────────────────────────────── */
.mc-learn-bar {
  background: var(--mc-card);
  border: 1px solid var(--mc-line);
  border-radius: 12px;
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  margin-bottom: 16px;
  padding: 16px;
}

.mc-units-learn li {
  padding-left: 16px;
}

.mc-units-learn li::before {
  content: "";
}

.mc-unit > summary {
  cursor: pointer;
  list-style: none;
  padding-left: 18px;
  position: relative;
}

.mc-unit > summary::-webkit-details-marker {
  display: none;
}

.mc-unit > summary::before {
  color: var(--mc-gold-dim);
  content: "▸";
  left: 0;
  position: absolute;
}

.mc-unit[open] > summary::before {
  content: "▾";
}

.mc-unit-done {
  color: var(--mc-gold);
}

.mc-unit-body {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding: 10px 0 4px 18px;
}

/* 沒有影片就講沒有影片，不放一個假的播放器 */
.mc-unit-video {
  background: #101113;
  border: 1px dashed var(--mc-line);
  border-radius: 8px;
  color: var(--mc-dim);
  flex: 1 1 260px;
  font-size: 13px;
  padding: 22px 14px;
  text-align: center;
}

.mc-unit-check {
  background: transparent;
  border: 1px solid var(--mc-line);
  border-radius: 8px;
  color: var(--mc-silver);
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  padding: 8px 14px;
  white-space: nowrap;
}

.mc-unit-check:hover:not(:disabled) {
  border-color: var(--mc-gold-dim);
  color: var(--mc-gold);
}

.mc-unit-check.on {
  border-color: #2f5c3c;
  color: #9fdcb4;
}

/* 手機：表格不砍欄位（砍掉價格那種欄位會讓人看不到關鍵資訊），改成可橫向捲動 */
@media (max-width: 720px) {
  .mc-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
  .mc-table th,
  .mc-table td {
    font-size: 13.5px;
    padding: 10px 12px;
  }
  .mc-page-title {
    font-size: 20px;
  }
  .mc-total {
    flex-direction: column;
    align-items: stretch;
  }
}