/* =========================================================================
 * 主题色变量（深色 / 浅色）
 * - 所有颜色都通过 CSS 变量统一管理，便于主题切换与维护
 * ========================================================================= */
:root,
.dark-theme {
  --bg-primary: #121212;
  --bg-secondary: #1f2937;
  --text-primary: #e5e7eb;
  --text-secondary: #9ca3af;
  --border-color: #374151;
  --card-bg: #1f2937;
  --modal-bg: #2b3749;
  --button-bg: #374151;
  --button-hover-bg: #4b5563;
  --control-bg: rgba(55, 65, 81, 0.5);
  --control-hover-bg: rgba(75, 85, 99, 0.7);
  --accent-color: #3b82f6; /* 原来是 #4ade80 */
  --accent-color-weak: rgba(59, 130, 246, 0.16); /* 新增：弱发光/环 */
  --accent-ring: rgba(59, 130, 246, 0.5); /* 新增：聚焦描边 */
}

.light-theme {
  --bg-primary: #ffffff;
  --bg-secondary: #f0f2f5;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --border-color: #e5e7eb;
  --card-bg: #ffffff;
  --modal-bg: #ffffff;
  --button-bg: #e5e7eb;
  --button-hover-bg: #d1d5db;
  --control-bg: rgba(229, 231, 235, 0.5);
  --control-hover-bg: rgba(209, 213, 219, 0.7);
  --accent-color: #3b82f6; /* 原来是 #22c55e */
  --accent-color-weak: rgba(59, 130, 246, 0.12); /* 新增 */
  --accent-ring: rgba(59, 130, 246, 0.45); /* 新增 */
}

/* =========================================================================
 * 全局基础样式
 * ========================================================================= */
*,
*::before,
*::after {
  box-sizing: border-box;
  transition: background-color 0.4s ease, color 0.4s ease,
    border-color 0.4s ease;
}

body {
  font-family: Inter, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-y: scroll;
  /* 始终保留滚动条，避免布局抖动 */
}

/* 应用容器进入“已搜索”状态时，主区域上移 */
#app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  justify-content: center;
  transition: justify-content 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

#app-container.searched {
  justify-content: flex-start;
}

/* 顶部区域：背景与过渡 */
#top-section {
  position: relative;
  background-color: var(--bg-secondary);
  transition: background-color 0.4s, padding 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  width: 100%;
  z-index: 10;
}

/* 顶部背景容器（可挂粒子/渐变等装饰） */
#top-section-bg-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

/* 搜索区进场缩放 */
#search-wrapper {
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1),
    padding 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  transform: scale(1.05);
}

#app-container.searched #search-wrapper {
  transform: scale(1);
  padding-top: 2rem;
  padding-bottom: 1.5rem;
}

@media (min-width: 768px) {
  #app-container.searched #search-wrapper {
    padding-top: 3rem;
    padding-bottom: 2rem;
  }
}

/* 主内容区的淡入上移动画 */
#main-content {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s 0.2s ease, transform 0.6s 0.2s ease;
  visibility: hidden;
  width: 100%;
}

#app-container.searched #main-content {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
}

/* 右上角主题开关容器 */
#sun-moon-switch-container {
  position: absolute;
  top: 2rem;
  right: 2rem;
  z-index: 100;
}

/* 自定义 Toggle（太阳/月亮） */
.toggle {
  --size: 1rem;
  appearance: none;
  outline: none;
  cursor: pointer;
  width: var(--size);
  height: var(--size);
  box-shadow: inset calc(var(--size) * 0.33) calc(var(--size) * -0.25) 0;
  border-radius: 999px;
  color: #e6e6ff;
  transition: all 0.5s;
  z-index: 1;
}

.toggle:checked {
  --ray-size: calc(var(--size) * -0.4);
  --offset-orthogonal: calc(var(--size) * 0.65);
  --offset-diagonal: calc(var(--size) * 0.45);
  transform: scale(0.75);
  color: #ffa000;
  box-shadow: inset 0 0 0 var(--size),
    calc(var(--offset-orthogonal) * -1) 0 0 var(--ray-size),
    var(--offset-orthogonal) 0 0 var(--ray-size),
    0 calc(var(--offset-orthogonal) * -1) 0 var(--ray-size),
    0 var(--offset-orthogonal) 0 var(--ray-size),
    calc(var(--offset-diagonal) * -1) calc(var(--offset-diagonal) * -1) 0
      var(--ray-size),
    var(--offset-diagonal) var(--offset-diagonal) 0 var(--ray-size),
    calc(var(--offset-diagonal) * -1) var(--offset-diagonal) 0 var(--ray-size),
    var(--offset-diagonal) calc(var(--offset-diagonal) * -1) 0 var(--ray-size);
}

/* Logo 进场动效 */
@keyframes logo-pop-in {
  0% {
    opacity: 0;
    transform: translateY(10px) scale(0.95);
  }

  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

#main-logo {
  animation: logo-pop-in 0.8s ease-out forwards;
  transition: transform 0.3s ease, text-shadow 0.3s ease;
  will-change: opacity, transform;
}

#main-logo span:hover {
  transform: scale(1.03);
  text-shadow: 0 0 15px color-mix(in srgb, var(--accent-color) 30%, transparent);
  display: inline-block;
}

/* 搜索后 Logo 适配更小字号（配合实际 h1 class） */
#app-container.searched #main-logo {
  font-size: 2.375rem;
}

@media (min-width: 768px) {
  #app-container.searched #main-logo {
    font-size: 2.95rem;
  }
}

/* 仅屏读可见（无障碍） */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* 滚动条美化（WebKit） */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: #4b5563;
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: #6b7280;
}

/* 封面图悬浮缩放 */
.artwork-img {
  transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

/* 列表项进场动画（IntersectionObserver 控制添加 .is-visible） */
@keyframes item-enter {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

.card,
.song-row-item {
  opacity: 0;
  will-change: opacity, transform;
}

.card.is-visible,
.song-row-item.is-visible {
  animation: item-enter 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.card:hover .artwork-img {
  transform: scale(1.05);
}

/* 卡片基础样式 */
.card {
  display: flex;
  flex-direction: column;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
}

.card-content {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

/* =========================================================================
 * 模态框（详情 / 视频 / 全部国家）
 * ========================================================================= */
.modal-container {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease-in-out;
}

.modal-container.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-content-wrapper {
  transform: scale(0.95) translateY(10px);
  transition: transform 0.25s ease-in-out, background-color 0.3s;
  will-change: transform;
}

.modal-container.is-open .modal-content-wrapper {
  transform: scale(1) translateY(0);
}

#modalContent {
  background-color: var(--modal-bg);
  color: var(--text-primary);
}

/* 试听按钮的“呼吸光圈” */
.track-play-btn {
  position: relative;
}

@keyframes pulse {
  0% {
    transform: scale(1);
    opacity: 0.6;
  }

  100% {
    transform: scale(0.5);
    opacity: 0;
  }
}

.track-play-btn.is-playing::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background-color: var(--accent-color);
  animation: pulse 1.5s infinite;
  z-index: -1;
  will-change: transform, opacity;
}

.track-play-btn.is-playing {
  color: var(--accent-color) !important;
}

/* 可复制文本的闪烁提示 */
.copyable-info {
  cursor: pointer;
  border-radius: 0.25rem;
  transition: background-color 0.2s;
}

.copy-flash {
  /* 原：#16a34a80（绿色） */
  background-color: rgba(59, 130, 246, 0.5) !important;
}

/* -------------------------------------------------------------------------
 * 多行/单行省略
 * - line-clamp 为“尝试性标准属性”，搭配 -webkit-* 做兼容
 * ------------------------------------------------------------------------- */
.truncate-2-lines {
  overflow: hidden;
  text-overflow: ellipsis;

  /* WebKit 兼容实现（Chrome/Safari/Edge） */
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;

  /* 尝试性标准属性：支持的浏览器会采用它，其他浏览器安全忽略 */
  line-clamp: 2;

  word-break: break-all;
}

.truncate-1-line {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}

/* 自定义下拉面板（国家选择快捷面板） */
.custom-select-panel {
  background-color: var(--modal-bg);
  border: 1px solid var(--border-color);
}

.custom-select-option:hover {
  background-color: var(--button-hover-bg);
}

/* 返回歌手按钮（保留占位，UI 用最终版圆形按钮） */
.back-to-artist-btn {
  display: inline-flex;
  align-items: center;
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.475rem 1rem;
  margin-bottom: 0;
  border-radius: 9999px;
  background-color: var(--button-bg);
  color: var(--text-primary);
  transition: background-color 0.2s ease-in-out;
}

.back-to-artist-btn:hover {
  background-color: var(--button-hover-bg);
}

/* 歌手名 hover 背景 */
.artist-link {
  cursor: pointer;
  border-radius: 0.25rem;
  transition: background-color 0.2s;
}

.artist-link:hover {
  background-color: #ffffff1a;
}

/* 实体选择按钮（专辑/单曲/歌手/视频） */
.entity-btn {
  position: relative;
  z-index: 1;
  background: transparent;
  border: 2px solid var(--border-color);
  border-radius: 30px;
  color: var(--text-secondary);
  font-weight: 600;
  text-decoration: none;
  overflow: hidden;
  transition: 0.5s;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-grow: 0;
  flex-basis: auto;
  font-size: 0.8625rem;
  padding: 9px 26px;
}

.entity-btn span {
  position: absolute;
  width: 25%;
  height: 100%;
  background-color: var(--accent-color);
  transform: translateY(150%);
  border-radius: 50%;
  left: calc((var(--n) - 1) * 25%);
  transition: 0.5s;
  transition-delay: calc((var(--n) - 1) * 0.1s);
  z-index: -1;
  will-change: transform;
}

.entity-btn:hover,
.entity-btn.active {
  color: var(--bg-primary);
  border-color: var(--accent-color);
}

.entity-btn:hover span,
.entity-btn.active span {
  transform: translateY(0) scale(3);
}

.entity-btn span:nth-child(1) {
  --n: 1;
}

.entity-btn span:nth-child(2) {
  --n: 2;
}

.entity-btn span:nth-child(3) {
  --n: 3;
}

.entity-btn span:nth-child(4) {
  --n: 4;
}

@media (min-width: 768px) {
  .entity-btn {
    font-size: 0.875rem;
    padding: 8px 24px;
  }
}

/* 悬浮控制区（右下角 FAB 列表） */
#floating-controls {
  transition: opacity 0.3s ease, transform 0.3s ease;
  will-change: opacity, transform;
}

#floating-controls.is-hidden {
  opacity: 0;
  transform: scale(0.9);
  pointer-events: none;
}

.control-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.625rem;
  background-color: var(--control-bg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  box-shadow: 0 4px 6px #0000001a;
  animation: pop-in 0.5s both ease-out;
  will-change: background-color, transform;
}

@keyframes pop-in {
  0% {
    opacity: 0;
    transform: scale(0.5) translateY(10px);
  }

  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

#floating-controls .control-btn:nth-child(1) {
  animation-delay: 0.05s;
}

#floating-controls .control-btn:nth-child(2) {
  animation-delay: 0.1s;
}

#floating-controls .control-btn:nth-child(3) {
  animation-delay: 0.15s;
}

#floating-controls #back-to-top-btn {
  animation-delay: 0.2s;
}

.control-btn:hover {
  background-color: var(--control-hover-bg);
  transform: scale(1.05);
}

/* 浏览历史气泡 */
#history-popover {
  position: absolute;
  right: 100%;
  bottom: 0;
  margin-right: 1rem;
  padding: 1rem;
  border-radius: 0.75rem;
  background-color: var(--control-bg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 12px #0003;
  opacity: 0;
  transform: translate(10px) scale(0.95);
  transform-origin: right bottom;
  pointer-events: none;
  transition: opacity 0.2s ease-out, transform 0.2s ease-out;
  will-change: opacity, transform;

  width: 340px;
  display: flex;
  flex-direction: column;
  max-height: 600px;
}

#history-popover.is-open {
  opacity: 1;
  transform: translate(0) scale(1);
  pointer-events: auto;
}

.history-popover-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.history-popover-header h3 {
  font-weight: 600;
  font-size: 0.875rem;
}

#clear-history-btn {
  font-size: 0.75rem;
  color: var(--text-secondary);
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.2s;
}

#clear-history-btn:hover {
  color: var(--text-primary);
}

/* 历史卡片网格 */
.history-grid {
  overflow-y: auto;
  overflow-x: hidden;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding: 0.25rem;
  flex-grow: 1;
  min-height: 0;
  scrollbar-width: none;
}

.history-grid::-webkit-scrollbar {
  display: none;
}

.history-grid .card {
  opacity: 1;
  animation: item-enter 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.history-grid .card .card-content {
  padding: 0.5rem;
}

.history-grid .card .card-content p {
  margin: 0;
  line-height: 1.4;
}

/* 回到顶部按钮的显隐动画 */
#back-to-top-btn {
  animation: none;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease-in-out, transform 0.5s ease-in-out;
  pointer-events: none;
  will-change: opacity, transform;
}

#back-to-top-btn.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* 模态右上角动作按钮（关闭/复制/繁简） */
.modal-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 9999px;
  background-color: var(--button-bg);
  color: var(--text-primary);
  transition: all 0.2s;
  font-size: 0.875rem;
  box-shadow: 0 1px 2px #0000000d;
  will-change: background-color, transform, box-shadow;
}

.modal-action-btn:hover {
  background-color: var(--button-hover-bg);
  transform: scale(1.1);
  box-shadow: 0 2px 4px #0000001a;
}

.modal-action-btn svg {
  width: 1rem;
  height: 1rem;
}

/* =========================================================================
 * 详情模态 —— 曲目表（tbody：#modalTracklist）
 * 修复点：去掉非标准属性 `divide-y`，采用 “tr + tr” 画分隔线
 * ========================================================================= */
#modalTracklist {
  border-color: transparent;
}

#modalTracklist tr {
  transition: background-color 0.2s ease-out;
}

/* 从第 2 行开始添加顶边线，实现“行与行之间的分隔线” */
#modalTracklist tr + tr {
  border-top: 1px solid var(--border-color);
}

#modalTracklist tr:hover {
  background-color: #80808026;
}

.light-theme #modalTracklist tr:hover {
  background-color: #8080801a;
}

.light-theme #modalTracklist {
  border-color: #d1d5db80;
}

/* 详情模态滚动条美化 */
.modal-scroll-container::-webkit-scrollbar {
  width: 10px;
}

.modal-scroll-container::-webkit-scrollbar-track {
  background: transparent;
}

.modal-scroll-container::-webkit-scrollbar-thumb {
  background: #4b5563;
  border-radius: 10px;
  border: 2px solid var(--modal-bg);
  background-clip: padding-box;
}

.modal-scroll-container::-webkit-scrollbar-thumb:hover {
  background: #6b7280;
}

.light-theme .modal-scroll-container::-webkit-scrollbar-thumb {
  background: #d1d5db;
  border: 2px solid var(--modal-bg);
}

.light-theme .modal-scroll-container::-webkit-scrollbar-thumb:hover {
  background: #9ca3af;
}

/* 显示“Explicit / Clean”小徽标 */
.explicitness-badge {
  display: inline-block;
  width: 0.875rem;
  height: 0.875rem;
  margin-left: 0.375rem;
  font-size: 0.625rem;
  font-weight: 700;
  line-height: 0.875rem;
  text-align: center;
  color: var(--text-secondary);
  border: 1px solid var(--text-secondary);
  border-radius: 0.125rem;
  vertical-align: baseline;
}

/* “全部国家”搜索区与语言按钮 */
#countrySearchInput {
  max-width: 300px;
  flex-grow: 1;
}

.country-lang-btn {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  background-color: var(--button-bg);
  color: var(--text-primary);
  font-weight: 600;
  transition: background-color 0.2s;
}

.country-lang-btn:hover {
  background-color: var(--button-hover-bg);
}

/* 快速选择项（紧凑国家面板） */
.custom-select-option {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background-color 0.2s;
  text-align: left;
  font-weight: 500;
}

.custom-select-option img {
  width: 1.5rem;
  height: 1.125rem;
  object-fit: cover;
  border-radius: 0.125rem;
  flex-shrink: 0;
  background-color: var(--border-color);
}

/* 卡片右上角收藏心形 */
.card .favorite-icon-wrapper {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  z-index: 10;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.2s ease-in-out, transform 0.2s ease-in-out;
  will-change: opacity, transform;
}

.card .image-container:hover .favorite-icon-wrapper {
  opacity: 1;
  transform: scale(1);
}

.favorite-icon-wrapper button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background-color: #00000080;
  border-radius: 9999px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: transform 0.2s;
  will-change: transform;
}

.favorite-icon-wrapper button:hover {
  transform: scale(1.1);
}

/* 详情模态内的收藏按钮（在封面下方的按钮组） */
#modal-favorite-wrapper {
  opacity: 0;
  transition: opacity 0.2s ease-in-out;
  will-change: opacity;
}

#modal-favorite-wrapper button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background-color: #00000080;
  border-radius: 9999px;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: transform 0.2s;
  will-change: transform;
}

#modal-favorite-wrapper button:hover {
  transform: scale(1.1);
}

.group:hover #modal-favorite-wrapper {
  opacity: 1;
}

.favorite-icon {
  width: 1.25rem;
  height: 1.25rem;
  cursor: pointer;
  color: #fffc;
  transition: color 0.2s;
}

.favorite-icon.favorited {
  color: #ef4444;
}

.button:hover .favorite-icon.favorited {
  color: #e5e7eb;
}

/* 通用圆形按钮容器（查看大图/原图/iTunes 链接） */
.button-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  width: 100%;
}

.button,
a.button {
  cursor: pointer;
  text-decoration: none;
  color: #e5e7eb;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #374151;
  border: 1px solid #4b5563;
  transition: all 0.4s ease-in-out;
  display: flex;
  justify-content: center;
  align-items: center;
}

.button:hover,
a.button:hover {
  transform: scale(1.1) rotate(360deg);
  transform-origin: center center;
  background-color: var(--accent-color);
  color: var(--bg-primary);
  border-color: var(--accent-color);
}

.button .btn-svg {
  width: 20px;
  height: 20px;
  transition: filter 0.3s;
}

#searchBtn:focus {
  outline: none;
  box-shadow: none;
}

/* 左侧专辑封面面板 */
.modal-artwork-pane {
  background-color: var(--modal-bg);
}

#modalArtwork {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  display: block;
  -webkit-mask-image: linear-gradient(to bottom, black 10%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 10%, transparent 100%);
  border-top-left-radius: 0.5rem;
  border-top-right-radius: 0.5rem;
}

@media (min-width: 768px) {
  #modalArtwork {
    border-top-right-radius: 0;
    border-bottom-left-radius: 0.5rem;
  }
}

/* 移动端细节优化（全屏化详情模态） */
@media (max-width: 767px) {
  #detailsModal {
    padding: 0;
  }

  #detailsModal #modalContent {
    width: 100%;
    height: 100%;
    max-height: 100vh;
    border-radius: 0;
    transition: none;
  }

  #modalMainContent.pt-16 {
    padding-top: 0 !important;
  }

  /* 右上角按钮适配安全区 */
  #detailsModal #modalContent > .absolute.top-4.right-4 {
    top: calc(1rem + env(safe-area-inset-top, 0));
    right: 1rem;
    z-index: 20;
  }

  /* 隐藏移动端滚动条 */
  #detailsModal .modal-scroll-container {
    -ms-overflow-style: none;
    scrollbar-width: none;
  }

  #detailsModal .modal-scroll-container::-webkit-scrollbar {
    display: none;
  }

  #modalArtwork {
    border-top-left-radius: 0;
    border-top-right-radius: 0;
  }
}

/* “新/旧/返回” 控制组容器 */
.new-controls-container {
  display: flex;
  align-items: center;
  gap: 12px;
  opacity: 0;
  animation: item-enter 0.5s forwards;
  height: 38px;
}

.back-to-artist-btn {
  display: none !important;
}

/* 圆形控制按钮（新/旧/返回） */
.control-final-btn {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background-color: var(--button-bg);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.7rem;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}

.control-final-btn:hover {
  background-color: var(--button-hover-bg);
  color: var(--text-primary);
  transform: scale(1.05);
}

.control-final-btn.active {
  background-color: var(--accent-color);
  color: var(--bg-primary);
  border-color: var(--accent-color);
}

/* Logo 内强调色 */
#main-logo .text-accent {
  color: var(--accent-color);
}

/* =========================================================================
 * “全部国家”弹窗网格与装饰
 * ========================================================================= */
#allCountriesModalContent .p-6.overflow-y-auto {
  scrollbar-width: thin;
  scrollbar-color: var(--text-secondary) transparent;
}

#allCountriesModalContent .p-6.overflow-y-auto::-webkit-scrollbar {
  width: 8px;
}

#allCountriesModalContent .p-6.overflow-y-auto::-webkit-scrollbar-track {
  background: transparent;
}

#allCountriesModalContent .p-6.overflow-y-auto::-webkit-scrollbar-thumb {
  background-color: var(--text-secondary);
  border-radius: 4px;
  border: 2px solid var(--modal-bg);
}

#allCountriesModalContent .p-6.overflow-y-auto::-webkit-scrollbar-thumb:hover {
  background-color: var(--accent-color);
}

#allCountriesModalContent .sticky-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background-color: var(--modal-bg);
  transition: box-shadow 0.3s ease-in-out;
}

#allCountriesModalContent .sticky-header.scrolled {
  box-shadow: 0 4px 12px -2px color-mix(in srgb, var(--bg-primary) 80%, transparent);
}

#all-countries-grid .country-category-section h4 {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* 国家单元格进场动画 */
@keyframes grid-item-fade-in {
  0% {
    opacity: 0;
    transform: translateY(8px) scale(0.98);
  }

  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

#all-countries-grid .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
}

.country-grid-item {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.75rem;
  padding: 0.625rem 0.75rem;
  border-radius: 0.5rem;
  cursor: pointer;
  font-weight: 500;
  border: 1px solid transparent;
  transition: transform 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  animation: grid-item-fade-in 0.4s ease-out backwards;
  will-change: transform, background-color, border-color, box-shadow;
}

.country-grid-item:hover {
  background-color: #ffffff1a;
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
  border-color: #ffffff33;
  transform: translateY(-4px);
  box-shadow: 0 8px 20px -5px color-mix(in srgb, var(--bg-primary) 70%, transparent);
}

.light-theme .country-grid-item:hover {
  background-color: #ffffff99;
  border-color: #0000000d;
}

.country-grid-item img {
  width: 2rem;
  height: 1.5rem;
  object-fit: cover;
  border-radius: 0.25rem;
  flex-shrink: 0;
  background-color: var(--border-color);
  box-shadow: 0 1px 3px #0000001a;
}

.country-grid-item .country-name-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: left;
  flex-grow: 1;
}

@media (max-width: 480px) {
  #all-countries-grid .grid {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }
}

/* 点击水波纹（JS 动态创建 .ripple） */
.ripple {
  position: absolute;
  border-radius: 50%;
  background-color: #ffffff99;
  transform: scale(0);
  animation: ripple-animation 0.6s linear;
  pointer-events: none;
  will-change: transform, opacity;
}

.light-theme .ripple {
  background-color: #00000033;
}

@keyframes ripple-animation {
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

/* 带图标的小圆按钮（封面下方） */
.flex-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.button .btn-svg {
  width: 20px;
  height: 20px;
  transition: filter 0.3s;
}

/* 搜索按钮去除聚焦外圈（由容器控制） */
#searchBtn:focus {
  outline: none;
  box-shadow: none;
}

/* 歌曲行中“歌手/专辑名”可点击 */
.song-row-artist-name,
.song-row-album-name {
  cursor: pointer;
}