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

/* ===== Material Design 3 tokens ===== */
:root {
  --md-surface: #0d0d0d;
  --md-surface-container: #141414;
  --md-surface-container-high: #1a1a1a;
  --md-outline: #2a2a2a;
  --md-outline-variant: #1a1a1a;
  --md-on-surface: #ddd;
  --md-on-surface-variant: #999;
  --md-on-surface-muted: #555;
  --md-primary: #ff4d4d;
  --md-primary-hover: #ff8080;
  --md-primary-container: rgba(255, 77, 77, 0.12);
  --md-radius-sm: 8px;
  --md-radius-md: 12px;
  --md-radius-lg: 16px;
  --md-radius-xl: 20px;
  --md-radius-full: 9999px;
  --md-easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --md-easing-emphasized: cubic-bezier(0.05, 0.7, 0.1, 1);
  --md-duration-short: 0.2s;
  --md-duration-medium: 0.3s;
  --md-elevation-1: 0 1px 3px rgba(0, 0, 0, 0.4);
  --md-elevation-2: 0 4px 12px rgba(0, 0, 0, 0.5);
  --md-elevation-3: 0 8px 28px rgba(0, 0, 0, 0.6);
  --cover-size: clamp(140px, 18vw, 200px);
  --cover-gap: clamp(12px, 2vw, 20px);
}

body {
  margin: 0;
  background: var(--md-surface);
  color: var(--md-on-surface);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  letter-spacing: 0.01em;
}

/* ===== 页面头部 ===== */
.songs-page {
  padding-bottom: 80px;
}

.page-header {
  padding: 40px 60px 12px;
}
.back-nav {
  display: inline-flex;
  align-items: center;
  margin-bottom: 12px;
  padding: 6px 16px;
  border: 1px solid var(--md-primary);
  border-radius: var(--md-radius-full);
  background: var(--md-primary-container);
  color: var(--md-primary);
  text-decoration: none;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.5px;
  transition: all var(--md-duration-short) var(--md-easing-standard);
}
.back-nav:hover {
  background: var(--md-primary);
  color: #fff;
}
.page-header h1 {
  margin: 0;
  font-family: "Cinzel", serif;
  font-size: 28px;
  font-weight: 800;
  color: var(--md-primary);
  letter-spacing: 2px;
}

/* ===== 工具栏 ===== */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 60px 24px;
  flex-wrap: wrap;
}
.search-box {
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 200px;
  max-width: 360px;
  padding: 8px 16px;
  background: var(--md-surface-container);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-full);
  transition: border-color var(--md-duration-short) var(--md-easing-standard);
}
.search-box:focus-within {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 2px var(--md-primary-container);
}
.search-box input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--md-on-surface);
  font-size: 13px;
  font-family: inherit;
}
.search-box input::placeholder {
  color: var(--md-on-surface-muted);
}
.search-box .search-icon {
  color: #666;
  font-size: 14px;
  margin-right: 8px;
}
.sort-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-full);
  background: var(--md-surface-container);
  color: var(--md-on-surface-variant);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  white-space: nowrap;
  font-family: inherit;
}
.sort-btn:hover {
  border-color: var(--md-primary);
  color: var(--md-on-surface);
  background: var(--md-surface-container-high);
}
.sort-btn .arrow {
  font-size: 10px;
}
.result-count {
  margin-left: auto;
  font-size: 12px;
  color: var(--md-on-surface-muted);
  font-weight: 500;
}

/* ===== 专辑分隔带 ===== */
.album-section {
  padding: 0 60px;
  margin-bottom: 40px;
}
.album-divider {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 20px 0 24px;
  border-bottom: 1px solid var(--md-outline-variant);
  margin-bottom: 24px;
}
.album-divider .album-name {
  font-family: "Cinzel", serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--md-primary);
  letter-spacing: 1.5px;
}
.album-divider .album-year {
  font-family: "Space Grotesk", monospace, sans-serif;
  font-size: 13px;
  color: var(--md-on-surface-muted);
  font-weight: 500;
  letter-spacing: 0.5px;
}

/* ===== 封面网格 ===== */
.cover-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(var(--cover-size), 1fr));
  gap: var(--cover-gap);
}

/* ===== 封面卡片 ===== */
.cover-card {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--md-radius-md);
  overflow: hidden;
  cursor: pointer;
  background: var(--md-surface-container);
  transition: transform var(--md-duration-medium) var(--md-easing-emphasized),
              box-shadow var(--md-duration-medium) var(--md-easing-standard);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.12), 0 0 16px rgba(255, 255, 255, 0.06), 0 2px 8px rgba(0, 0, 0, 0.3);
}
.cover-card:hover {
  transform: scale(1.04);
  box-shadow: 0 0 0 1px rgba(255, 77, 77, 0.4), 0 12px 32px rgba(255, 77, 77, 0.18);
  z-index: 2;
}
.cover-card:active {
  transform: scale(0.98);
}
.cover-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: filter var(--md-duration-medium) var(--md-easing-standard);
}
.cover-card:hover img {
  filter: brightness(0.3) blur(2px);
}
.cover-card .cover-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--md-duration-medium) var(--md-easing-standard);
  padding: 16px;
  text-align: center;
}
.cover-card:hover .cover-overlay {
  opacity: 1;
}
.cover-overlay .cover-song-name {
  font-family: "Cinzel", serif;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.5px;
  line-height: 1.4;
  margin-bottom: 4px;
}
.cover-overlay .cover-song-name-cn {
  font-size: 11px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}
.cover-overlay .cover-info-icon {
  width: 36px;
  height: 36px;
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--md-duration-short) var(--md-easing-standard),
              filter var(--md-duration-short) var(--md-easing-standard);
  filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.15));
}
.cover-info-icon .hexagram-ring {
  animation: hexagram-spin 30s linear infinite;
  transform-origin: 24px 24px;
}
.cover-card:hover .cover-info-icon {
  color: rgba(255, 255, 255, 0.85);
  filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.3));
}
.cover-info-icon .hexagram-up,
.cover-info-icon .hexagram-down,
.cover-info-icon .eye-almond {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.cover-info-icon .eye-pupil {
  fill: currentColor;
}
@keyframes hexagram-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ===== 无结果提示 ===== */
.no-results {
  text-align: center;
  padding: 64px 20px;
  color: var(--md-on-surface-muted);
  font-size: 14px;
  letter-spacing: 0.5px;
}

/* ===== 模态框遮罩 ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.88);
  will-change: opacity;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--md-duration-medium) var(--md-easing-standard),
              visibility var(--md-duration-medium) var(--md-easing-standard);
  padding: 24px;
}
.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

/* ===== 模态框容器 ===== */
.modal-container {
  display: flex;
  width: 100%;
  max-width: 1000px;
  max-height: 90vh;
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: var(--md-radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--md-elevation-3);
}

/* 关闭按钮 */
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border: 1px solid var(--md-outline);
  border-radius: 50%;
  background: var(--md-surface-container);
  color: var(--md-on-surface-variant);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  line-height: 1;
}
.modal-close:hover {
  border-color: var(--md-primary);
  color: var(--md-primary);
  background: var(--md-primary-container);
}

/* ===== 左侧栏（Sticky） ===== */
.modal-left {
  width: 340px;
  flex-shrink: 0;
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  border-right: 1px solid var(--md-outline-variant);
  position: sticky;
  top: 0;
  align-self: flex-start;
  max-height: 90vh;
  overflow-y: visible;
}
.modal-left .modal-cover {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--md-radius-md);
  margin-bottom: 24px;
  box-shadow: var(--md-elevation-2);
}
.modal-left .modal-song-title {
  font-family: "Cinzel", serif;
  font-size: 24px;
  font-weight: 800;
  color: var(--md-primary);
  letter-spacing: 1.5px;
  text-align: center;
  margin-bottom: 4px;
}
.modal-left .modal-song-title-cn {
  font-size: 15px;
  font-weight: 400;
  color: var(--md-on-surface-variant);
  letter-spacing: 0.5px;
  text-align: center;
  margin-bottom: 12px;
}
.modal-left .modal-song-type {
  display: inline-block;
  padding: 4px 14px;
  border: 1px solid var(--md-primary);
  border-radius: var(--md-radius-full);
  font-size: 11px;
  font-weight: 600;
  color: var(--md-primary);
  letter-spacing: 0.5px;
  margin-bottom: 24px;
}
.modal-left .modal-meta {
  width: 100%;
  font-size: 12px;
  color: var(--md-on-surface-muted);
  line-height: 2.2;
}
.modal-left .modal-meta .meta-label {
  color: var(--md-on-surface-muted);
  margin-right: 4px;
  font-weight: 500;
}
.modal-left .modal-meta .meta-value {
  color: var(--md-on-surface);
}
.modal-left .modal-meta .meta-link {
  color: var(--md-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--md-duration-short) var(--md-easing-standard);
}
.modal-left .modal-meta .meta-link:hover {
  color: var(--md-primary-hover);
  text-decoration: underline;
}
.modal-left .appearances {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}
.modal-left .appearance-tag {
  padding: 2px 10px;
  background: rgba(255, 77, 77, 0.08);
  border: 1px solid rgba(255, 77, 77, 0.2);
  border-radius: 10px;
  font-size: 11px;
  color: #ff8080;
}
/* 收录CD：CD图标+文字，同一行内联 */
.modal-left .appearances-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}
.modal-left .cd-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: #999;
}
.modal-left .cd-icon {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #3a3a3a, #1a1a1a 60%, #0d0d0d);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
  position: relative;
}
.modal-left .cd-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 4px;
  height: 4px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: #0d0d0d;
  box-shadow: 0 0 0 0.5px rgba(255, 255, 255, 0.15);
}

/* ===== 右侧滚动区 ===== */
.modal-right {
  flex: 1;
  padding: 40px 36px;
  overflow-y: auto;
  max-height: 90vh;
}
.modal-right::-webkit-scrollbar {
  width: 4px;
}
.modal-right::-webkit-scrollbar-track {
  background: transparent;
}
.modal-right::-webkit-scrollbar-thumb {
  background: rgba(255, 77, 77, 0.12);
  border-radius: 2px;
}
.modal-right::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 77, 77, 0.25);
}

/* 区块标题 */
.section-title {
  font-family: "Cinzel", serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--md-primary);
  letter-spacing: 1.5px;
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--md-outline-variant);
}

/* 区块 A：Comment */
.commentary-block {
  margin-bottom: 36px;
}
.commentary-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--md-outline-variant);
}
.commentary-header .section-title {
  margin: 0;
  padding: 0;
  border: none;
}
.comment-tabs {
  display: flex;
  gap: 4px;
  align-items: center;
}
.comment-tab {
  font-size: 11px;
  font-family: "Cinzel", serif;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  border-bottom: 2px solid transparent;
  transition: color var(--md-duration-short) var(--md-easing-standard),
              background var(--md-duration-short) var(--md-easing-standard),
              border-color var(--md-duration-short) var(--md-easing-standard);
}
.comment-tab:hover {
  color: var(--md-primary-hover);
}
.comment-tab.active {
  color: var(--md-primary);
  background: var(--md-primary-container);
  border-bottom-color: var(--md-primary);
}
.commentary-body {
  max-height: 220px;
  overflow-y: auto;
  padding-right: 8px;
}
.commentary-body::-webkit-scrollbar {
  width: 4px;
}
.commentary-body::-webkit-scrollbar-track {
  background: transparent;
}
.commentary-body::-webkit-scrollbar-thumb {
  background: rgba(255, 77, 77, 0.12);
  border-radius: 2px;
}
.commentary-body::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 77, 77, 0.25);
}
.commentary-text {
  background: var(--md-surface-container);
  border-left: 3px solid var(--md-primary);
  padding: 16px 20px;
  border-radius: 0 var(--md-radius-sm) var(--md-radius-sm) 0;
  font-size: 13px;
  color: var(--md-on-surface-variant);
  line-height: 1.85;
  font-style: italic;
}
.comment-source {
  margin-top: 8px;
  font-style: normal;
}
.comment-source a {
  font-size: 11px;
  color: var(--md-primary-hover);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: color var(--md-duration-short) var(--md-easing-standard);
}
.comment-source a:hover {
  color: var(--md-primary);
  text-decoration: underline;
}
.comment-source.is-text {
  font-size: 11px;
  color: var(--md-on-surface-muted);
  font-style: normal;
}

/* 区块 B：双语歌词 */
.lyrics-block {
  margin-bottom: 36px;
}
.lyrics-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--md-outline-variant);
  margin-bottom: 16px;
}
.lyrics-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}
.lyrics-toggle {
  padding: 5px 14px;
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-full);
  font-size: 11px;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  background: none;
  font-family: inherit;
  white-space: nowrap;
}
.lyrics-toggle:hover {
  border-color: var(--md-primary);
  color: var(--md-primary);
}
.lyrics-copy {
  display: none;
  padding: 5px 14px;
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-radius-full);
  font-size: 11px;
  font-weight: 500;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  transition: all var(--md-duration-short) var(--md-easing-standard);
  background: none;
  font-family: inherit;
  white-space: nowrap;
}
.lyrics-copy:hover {
  border-color: var(--md-primary);
  color: var(--md-primary);
}
.lyrics-columns {
  max-height: 220px;
  overflow-y: auto;
  padding-right: 8px;
}
.lyrics-columns::-webkit-scrollbar {
  width: 4px;
}
.lyrics-columns::-webkit-scrollbar-track {
  background: transparent;
}
.lyrics-columns::-webkit-scrollbar-thumb {
  background: rgba(255, 77, 77, 0.12);
  border-radius: 2px;
}
.lyrics-columns::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 77, 77, 0.25);
}
.lyrics-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding: 2px 0;
}
.lyrics-jp {
  font-size: 13px;
  line-height: 2;
  color: var(--md-on-surface);
}
.lyrics-cn {
  font-size: 13px;
  line-height: 2;
  color: var(--md-on-surface-variant);
}
/* 歌词mode */
.lyrics-block.clean-mode {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: var(--md-surface);
  padding: 60px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.lyrics-block.clean-mode .lyrics-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 2001;
}
.lyrics-block.clean-mode .lyrics-columns {
  max-width: 800px;
  width: 100%;
  max-height: none;
  overflow: visible;
}
.lyrics-block.clean-mode .lyrics-jp,
.lyrics-block.clean-mode .lyrics-cn {
  font-size: 16px;
  line-height: 2.4;
}

/* 区块 C：Live 演唱履历 */
.live-block {
  margin-bottom: 36px;
}
.live-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--md-outline-variant);
  margin-bottom: 16px;
}
.live-stats {
  font-size: 11px;
  color: var(--md-on-surface-muted);
  font-weight: 500;
  letter-spacing: 0.5px;
  white-space: nowrap;
  flex-shrink: 0;
}
.live-timeline {
  position: relative;
  padding-left: 24px;
  max-height: 260px;
  overflow-y: auto;
  padding-right: 8px;
}
.live-timeline::-webkit-scrollbar {
  width: 4px;
}
.live-timeline::-webkit-scrollbar-track {
  background: transparent;
}
.live-timeline::-webkit-scrollbar-thumb {
  background: rgba(255, 77, 77, 0.12);
  border-radius: 2px;
}
.live-timeline::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 77, 77, 0.25);
}
.live-timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--md-outline-variant);
}
.live-node {
  position: relative;
  padding: 10px 0 10px 20px;
  margin-bottom: 4px;
  border-radius: var(--md-radius-sm);
  transition: background var(--md-duration-short) var(--md-easing-standard);
}
.live-node::before {
  content: "";
  position: absolute;
  left: -20px;
  top: 16px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #333;
  border: 2px solid var(--md-outline-variant);
  transition: background var(--md-duration-short) var(--md-easing-standard);
}
.live-node.has-video::before {
  background: var(--md-primary);
  border-color: var(--md-primary);
  box-shadow: 0 0 6px rgba(255, 77, 77, 0.4);
}
.live-node .live-date {
  font-family: "Space Grotesk", monospace, sans-serif;
  font-size: 11px;
  color: var(--md-on-surface-muted);
  margin-bottom: 2px;
  font-weight: 500;
}
.live-node .live-name {
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  color: var(--md-on-surface-muted);
  cursor: default;
  transition: color var(--md-duration-short) var(--md-easing-standard);
}
.live-node.has-video .live-name {
  color: var(--md-primary);
  cursor: pointer;
}
.live-node.has-video .live-name:hover {
  color: var(--md-primary-hover);
  text-decoration: underline;
}
.live-node.no-video .live-name {
  color: var(--md-on-surface-muted);
  cursor: default;
}
.live-node .live-venue {
  font-size: 11px;
  color: #666;
  margin-top: 2px;
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
  .page-header, .toolbar, .album-section {
    padding-left: 24px;
    padding-right: 24px;
  }
  .page-header h1 {
    font-size: 22px;
    letter-spacing: 1px;
  }
  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }
  .search-box {
    max-width: none;
  }
  .result-count {
    margin-left: 0;
  }
  .cover-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }

  .modal-container {
    flex-direction: column;
  }
  .modal-left {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--md-outline-variant);
    padding: 24px 20px;
    position: static;
    max-height: none;
    flex-direction: row;
    gap: 16px;
    align-items: flex-start;
  }
  .modal-left .modal-cover {
    width: 100px;
    flex-shrink: 0;
    margin-bottom: 0;
  }
  .modal-left .modal-song-title {
    font-size: 18px;
    text-align: left;
  }
  .modal-right {
    padding: 24px 20px;
  }
  .lyrics-row {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .lyrics-block.clean-mode {
    padding: 40px 24px;
  }
}

@media (max-width: 480px) {
  .page-header, .toolbar, .album-section {
    padding-left: 16px;
    padding-right: 16px;
  }
  .cover-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .modal-container {
    max-height: 95vh;
  }
}