/**
 * 听句精听页面样式。
 * 只作用于 body.listen-page，避免影响站内其它模块。
 * 版式：顶部固定播放器 + 可滚动句子列表 + 列表下方答题区。
 */

.listen-page {
  --listen-radius: 8px;
  --listen-topbar: 64px;
}

/* ------------------------------------------------------------ 顶部固定播放器 */

.listen-player {
  position: sticky;
  top: var(--listen-topbar);
  z-index: 30;
  width: min(1160px, calc(100% - 44px));
  margin: 18px auto 0;
  padding: 14px 18px;
  display: grid;
  gap: 10px;
  background: var(--forest-deep);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--listen-radius);
  box-shadow: 0 12px 30px rgba(11, 17, 41, 0.24);
}

.listen-player-main {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) auto minmax(120px, 1fr);
  align-items: center;
  gap: 12px;
}

.listen-progress {
  color: #cfd3e3;
  font-size: 13px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.listen-player-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.listen-player .icon-button {
  min-width: 40px;
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #e6e8f2;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.22);
  border-radius: var(--listen-radius);
}

.listen-player .icon-button:hover {
  background: rgba(255, 255, 255, 0.16);
}

.listen-player .icon-button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentcolor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.listen-player .icon-button:disabled {
  opacity: 0.42;
  cursor: not-allowed;
}

.listen-play-button {
  min-width: 132px;
  min-height: 44px;
  padding: 0 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--forest-deep);
  background: linear-gradient(180deg, #f6d98a, var(--gold));
  border: 0;
  border-radius: var(--listen-radius);
  font-size: 14px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.listen-play-button svg {
  width: 16px;
  height: 16px;
  fill: currentcolor;
  stroke: none;
}

.listen-play-button:hover {
  box-shadow: 0 8px 18px rgba(209, 165, 72, 0.32);
}

.listen-play-button.is-playing {
  color: #ffffff;
  background: linear-gradient(180deg, #d9695f, var(--coral));
}

.listen-loop {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #cfd3e3;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.listen-loop input {
  width: 16px;
  height: 16px;
  accent-color: var(--gold);
}

.listen-player-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: #a8aec4;
  font-size: 12px;
}

.listen-source-meta {
  min-width: 0;
  overflow-wrap: anywhere;
}

.listen-timer {
  flex: 0 0 auto;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  color: #e6e8f2;
}

/* --------------------------------------------------------------- 主体两栏 */

.listen-board {
  width: min(1160px, calc(100% - 44px));
  margin: 18px auto 0;
  display: grid;
  gap: 16px;
}

.listen-list-panel,
.listen-answer-panel,
.listen-wrong-panel {
  padding: 18px 20px 20px;
  display: grid;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--listen-radius);
  box-shadow: 0 8px 24px rgba(12, 18, 43, 0.06);
}

.listen-panel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.listen-panel-head h2 {
  margin: 0;
  color: var(--forest-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
}

.listen-panel-hint {
  color: var(--muted);
  font-size: 12px;
}

/* ------------------------------------------------------------ 句子列表 */

.listen-list {
  max-height: min(56vh, 640px);
  overflow: auto;
  padding: 4px;
  display: grid;
  gap: 6px;
  background: #fbfbfc;
  border: 1px solid var(--line);
  border-radius: var(--listen-radius);
  scroll-behavior: smooth;
  overscroll-behavior: contain;
}

.listen-list:focus-visible {
  border-color: #757fa6;
}

.listen-item {
  width: 100%;
  padding: 10px 12px;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) auto;
  align-items: start;
  gap: 10px;
  text-align: left;
  color: var(--ink);
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: var(--listen-radius);
  cursor: pointer;
  transition: border-color 0.16s ease, background 0.16s ease;
}

.listen-item:hover {
  border-color: #8e94ad;
}

.listen-item.is-current {
  background: #f2f3f8;
  border-color: var(--forest);
  box-shadow: inset 3px 0 0 var(--forest);
}

.listen-item.is-playing {
  background: #fdf3ef;
  border-color: var(--coral);
}

.listen-item-index {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  padding-top: 2px;
}

.listen-item-body {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.listen-item-en {
  color: var(--ink);
  font-size: 14px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.listen-item-zh {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

/* 未揭晓原文时把英文糊掉，仍然可以点击跳到该句 */
.listen-list.is-masked .listen-item:not(.is-revealed) .listen-item-en {
  filter: blur(5px);
  user-select: none;
}

.listen-list.is-masked .listen-item:not(.is-revealed) .listen-item-zh {
  filter: blur(5px);
  user-select: none;
}

.listen-item-state {
  flex: 0 0 auto;
  padding: 3px 8px;
  color: var(--muted);
  background: #eeeff3;
  border-radius: var(--listen-radius);
  font-size: 11px;
  font-weight: 800;
  white-space: nowrap;
}

.listen-item-state[data-state="hit"] {
  color: #1f6b4f;
  background: #e2f2e9;
}

.listen-item-state[data-state="miss"] {
  color: #a53f36;
  background: #fbe6e3;
}

/* ------------------------------------------------------------- 答题区 */

.listen-answer-number {
  margin: 0;
  color: var(--forest);
  font-size: 13px;
  font-weight: 800;
}

.listen-answer-audio {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.listen-attempts {
  color: var(--muted);
  font-size: 12px;
}

.listen-input-field {
  display: grid;
  gap: 7px;
}

.listen-input-field span {
  color: #6e7281;
  font-size: 12px;
  font-weight: 800;
}

.listen-input-field textarea {
  width: 100%;
  min-height: 92px;
  padding: 11px 12px;
  resize: vertical;
  color: var(--ink);
  background: #fbfbfc;
  border: 1px solid var(--line);
  border-radius: var(--listen-radius);
  font-family: inherit;
  font-size: 15px;
  line-height: 1.6;
}

.listen-input-field textarea:focus {
  border-color: #757fa6;
  box-shadow: 0 0 0 3px rgba(77, 90, 143, 0.12);
  outline: 0;
}

.listen-answer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.listen-result {
  min-height: 0;
}

.listen-result:empty {
  display: none;
}

.listen-score {
  display: grid;
  gap: 8px;
  padding: 12px 14px;
  background: #f7f8f3;
  border: 1px solid var(--line);
  border-radius: var(--listen-radius);
}

.listen-score-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.listen-score-value {
  color: var(--forest-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 24px;
  font-weight: 700;
}

.listen-score-note {
  color: var(--muted);
  font-size: 12px;
}

.listen-diff {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  line-height: 1.6;
}

.listen-diff span {
  padding: 1px 5px;
  border-radius: 5px;
  font-size: 13px;
}

.listen-diff .diff-hit {
  color: #1f6b4f;
  background: #e2f2e9;
}

.listen-diff .diff-miss {
  color: #a53f36;
  background: #fbe6e3;
  text-decoration: line-through;
}

.listen-diff .diff-extra {
  color: #8a6416;
  background: #fdf1d8;
  font-style: italic;
}

.listen-reference {
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  background: #eeeff5;
  border-left: 3px solid var(--forest);
  border-radius: var(--listen-radius);
}

.listen-reference p {
  margin: 0;
  line-height: 1.7;
}

.listen-reference-en {
  color: var(--forest-deep);
  font-size: 14px;
  font-weight: 700;
}

.listen-reference-zh {
  color: var(--muted);
  font-size: 13px;
}

/* ------------------------------------------------------------- 错题本 */

.listen-wrong-panel {
  width: min(1160px, calc(100% - 44px));
  margin: 18px auto 0;
}

.listen-wrong-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.listen-wrong-list {
  display: grid;
  gap: 10px;
  max-height: min(50vh, 520px);
  overflow: auto;
}

.listen-wrong-item {
  padding: 12px 14px;
  display: grid;
  gap: 8px;
  background: #fbfbfc;
  border: 1px solid var(--line);
  border-radius: var(--listen-radius);
}

.listen-wrong-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}

.listen-wrong-source {
  color: var(--forest);
  font-size: 12px;
  font-weight: 800;
}

.listen-wrong-actions-inline {
  display: flex;
  gap: 6px;
}

.listen-wrong-line {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

.listen-wrong-line strong {
  color: var(--muted);
  font-weight: 800;
}

.listen-empty {
  padding: 20px;
  color: var(--muted);
  text-align: center;
  font-size: 13px;
  background: #fbfbfc;
  border: 1px dashed var(--line-strong);
  border-radius: var(--listen-radius);
}

/* ---------------------------------------------------------- 页脚借鉴声明 */

.listen-page .kaoyan-attribution {
  width: min(1160px, calc(100% - 44px));
  margin: 22px auto 46px;
  padding: 22px 24px;
  display: grid;
  gap: 12px;
  background: #f7f8f3;
  border: 1px solid var(--line);
  border-radius: var(--listen-radius);
}

.listen-page .kaoyan-attribution h2 {
  margin: 0;
  color: var(--forest-deep);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
}

.listen-page .kaoyan-attribution p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.75;
}

.listen-page .kaoyan-attribution ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 7px;
  color: #4c5163;
  font-size: 12px;
  line-height: 1.7;
}

.listen-page .kaoyan-attribution a {
  color: var(--forest);
  font-weight: 800;
}

.listen-page .kaoyan-attribution code {
  padding: 1px 5px;
  background: #e7e8ed;
  border-radius: 5px;
  font-size: 11px;
}

/* --------------------------------------------------------------- 响应式 */

@media (min-width: 1080px) {
  .listen-board {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
    align-items: start;
  }

  .listen-list {
    max-height: min(62vh, 680px);
  }
}

@media (max-width: 900px) {
  .listen-player,
  .listen-board,
  .listen-wrong-panel,
  .listen-page .kaoyan-attribution {
    width: calc(100% - 32px);
  }
}

@media (max-width: 640px) {
  .listen-page {
    --listen-topbar: 58px;
  }

  .listen-player {
    margin-top: 12px;
    padding: 12px 14px;
  }

  .listen-player-main {
    grid-template-columns: minmax(0, 1fr);
    justify-items: stretch;
    gap: 10px;
  }

  .listen-progress {
    order: -1;
  }

  .listen-player-actions {
    justify-content: center;
  }

  .listen-play-button {
    flex: 1 1 auto;
    min-width: 0;
  }

  .listen-loop {
    justify-self: center;
  }

  .listen-list-panel,
  .listen-answer-panel,
  .listen-wrong-panel {
    padding: 14px 14px 16px;
  }

  .listen-list {
    max-height: min(48vh, 460px);
  }

  .listen-item {
    grid-template-columns: 30px minmax(0, 1fr);
  }

  .listen-item-state {
    grid-column: 2;
    justify-self: start;
  }

  .listen-answer-actions .tool-button {
    flex: 1 1 140px;
  }
}

@media (max-width: 380px) {
  .listen-player-actions {
    gap: 6px;
  }

  .listen-player .icon-button {
    min-width: 36px;
    min-height: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .listen-list {
    scroll-behavior: auto;
  }

  .listen-item,
  .listen-play-button {
    transition: none;
  }
}