/* ============================================================
   冷月幽 · 布局层
   页头（搜索·语言·主题）/ 页脚 / 栏目页页头 / 播放器
   全站每页都引入；改这里会影响所有页面
   ============================================================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(248, 244, 236, .84);
  -webkit-backdrop-filter: blur(12px) saturate(1.15);
  backdrop-filter: blur(12px) saturate(1.15);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s var(--ease), background .3s var(--ease),
              transform .36s var(--ease);
}

/* 下滑时整条收上去；sticky 仍占原位置，所以页面不会跳动 */
.site-header.is-hidden {
  transform: translateY(-100%);
}

/* 减弱动效偏好：不做位移，始终保持可见 */
@media (prefers-reduced-motion: reduce) {
  .site-header { transition: none; }
  .site-header.is-hidden { transform: none; }
}

.site-header.is-scrolled {
  box-shadow: 0 1px 0 rgba(207, 194, 169, .5), 0 14px 30px -26px rgba(63, 48, 32, .6);
  background: rgba(250, 247, 240, .93);
}

[data-theme="dark"] .site-header { background: rgba(26, 24, 21, .84); }

[data-theme="dark"] .site-header.is-scrolled {
  background: rgba(30, 27, 23, .94);
  box-shadow: 0 1px 0 rgba(74, 66, 53, .6), 0 14px 30px -26px rgba(0, 0, 0, .8);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 72px;
}

.brand { display: flex; align-items: center; gap: 12px; flex: none; }

.brand-text strong {
  display: block;
  font-family: var(--font-kai);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .18em;
  line-height: 1.25;
  white-space: nowrap;
}

.brand-text small {
  display: block;
  font-size: 13px;
  color: var(--ink-3);
  letter-spacing: .24em;
  white-space: nowrap;
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
  justify-content: flex-end;
  min-width: 0;
}

/* 默认只显示图标；悬停或聚焦时用 width 过渡展开 */
.search {
  position: relative;
  flex: none;
  width: 36px;
  transition: width .36s var(--ease);
}

.search:hover,
.search:focus-within,
.search.is-open {
  width: 208px;
}

/* 点击外部 / 按 Esc 后强制收起，并压制 hover 展开；
   鼠标重新移入时由 JS 移除该类，恢复可展开 */
.search.is-collapsed,
.search.is-collapsed:hover,
.search.is-collapsed:focus-within {
  width: 36px;
}

.search-field {
  display: flex;
  align-items: center;
  gap: 7px;
  height: 34px;
  padding: 0 11px;
  overflow: hidden;
  background: rgba(255, 253, 248, .6);
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: border-color .25s var(--ease), background .25s var(--ease), box-shadow .25s var(--ease);
}

.search-field:focus-within {
  background: var(--paper-3);
  border-color: var(--line-2);
  box-shadow: 0 0 0 3px rgba(164, 80, 58, .07);
}

.search-icon {
  flex: none;
  width: 13px; height: 13px;
  fill: none;
  stroke: var(--ink-4);
  stroke-width: 1.6;
  stroke-linecap: round;
}

.search-input {
  flex: 1 1 0;
  min-width: 0;
  width: 0;
  padding: 0;
  font-family: inherit;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--ink);
  background: transparent;
  border: 0;
  outline: none;
}

.search-input::placeholder { color: var(--ink-4); letter-spacing: .08em; }

.search-input::-webkit-search-cancel-button { -webkit-appearance: none; }

.search-clear {
  display: none;
  flex: none;
  width: 16px; height: 16px;
  padding: 0;
  font-size: 13px;
  line-height: 1;
  color: var(--ink-4);
  background: transparent;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  transition: color .2s var(--ease);
}

.search-clear:hover { color: var(--cinnabar); }

.search.has-value .search-clear { display: block; }

.search-kbd {
  flex: none;
  padding: 1px 5px;
  font-family: inherit;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--ink-4);
  background: rgba(228, 218, 199, .5);
  border-radius: 3px;
}

.search.has-value .search-kbd { display: none; }

.search-panel {
  position: absolute;
  top: calc(100% + 8px);
  /* 右对齐到搜索框：搜索框本身靠在右侧，面板若向左对齐会伸出视口右缘，
     在 761~980px 之间把整页撑出横向滚动条 */
  left: auto;
  right: 0;
  width: 300px;
  max-width: calc(100vw - 32px);
  padding: 6px;
  background: var(--paper-3);
  border: 1px solid var(--line-2);
  border-radius: 8px;
  box-shadow: 0 3px 10px rgba(63, 48, 32, .07), 0 22px 44px -24px rgba(63, 48, 32, .45);
  z-index: 70;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s;
}

.search[data-open="true"] .search-panel {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.search-empty {
  padding: 14px 12px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--ink-4);
  text-align: center;
}

.search-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 11px;
  border-radius: 5px;
  cursor: pointer;
  transition: background .18s var(--ease);
}

.search-item:hover,
.search-item.is-active { background: rgba(164, 80, 58, .07); }

.search-item-cat {
  flex: none;
  padding: 1px 6px;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--cinnabar);
  background: var(--cinnabar-soft);
  border-radius: 3px;
}

.search-item-body {
  display: block;
  min-width: 0;
  flex: 1;
  line-height: 1.6;
}

.search-item-title {
  display: block;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-item-title mark {
  color: var(--cinnabar);
  background: transparent;
  font-weight: 700;
}

.search-item-meta {
  display: block;
  margin-top: 2px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--ink-4);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

[data-theme="dark"] .search-field {
  background: rgba(255, 253, 248, .04);
}

[data-theme="dark"] .search-field:focus-within {
  background: rgba(255, 253, 248, .07);
  box-shadow: 0 0 0 3px rgba(201, 106, 78, .1);
}

[data-theme="dark"] .search-kbd { background: rgba(74, 66, 53, .5); }

[data-theme="dark"] .search-panel {
  box-shadow: 0 3px 10px rgba(0, 0, 0, .3), 0 22px 44px -24px rgba(0, 0, 0, .8);
}

[data-theme="dark"] .search-item:hover,
[data-theme="dark"] .search-item.is-active { background: rgba(201, 106, 78, .13); }

.header-tool {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: none;
  padding: 0 0 0 6px;
  border-left: 1px solid var(--line);
}

.tool-btn {
  display: grid;
  place-items: center;
  min-width: 32px;
  height: 32px;
  padding: 0 7px;
  font-family: inherit;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--ink-3);
  background: transparent;
  border: 0;
  border-radius: 6px;
  cursor: pointer;
  transition: color .22s var(--ease), background .22s var(--ease);
}

.tool-btn:hover { color: var(--cinnabar); background: var(--cinnabar-soft); }

.tool-btn svg { width: 15px; height: 15px; }

.lang-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-wrap: nowrap;
  white-space: nowrap;
  gap: 0;
  min-width: 46px;
  padding: 0 6px;
  font-size: 13px;
  letter-spacing: .04em;
}

.lang-btn .lang-cur { color: var(--ink-2); font-weight: 700; }

.lang-btn .lang-sep { margin: 0 1px; color: var(--ink-4); opacity: .55; }

.lang-btn .lang-other { color: var(--ink-4); }

.theme-btn .icon-sun { display: none; }

.theme-btn .icon-moon { display: block; }

[data-theme="dark"] .theme-btn .icon-sun { display: block; }

[data-theme="dark"] .theme-btn .icon-moon { display: none; }

.theme-btn svg {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.site-nav { display: flex; align-items: center; gap: 2px; flex: none; }

.site-nav a {
  position: relative;
  padding: 8px 12px;
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--ink-2);
  white-space: nowrap;
  transition: color .25s var(--ease);
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px; bottom: 1px;
  height: 1px;
  background: var(--cinnabar);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .32s var(--ease);
}

.site-nav a:hover { color: var(--cinnabar); }

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after { transform: scaleX(1); }

.site-nav a[aria-current="page"] { color: var(--cinnabar); }

[data-lang="en"] .site-nav a { letter-spacing: .02em; }

[data-lang="en"] .brand-text strong { letter-spacing: .04em; font-family: var(--font-serif); }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--line-2);
  border-radius: 6px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px; height: 1.5px;
  margin: 4px auto;
  background: var(--ink-2);
  transition: transform .3s var(--ease), opacity .2s var(--ease);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }

.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }

.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

.site-footer {
  margin-top: clamp(32px, 5vw, 56px);
  padding: 44px 0 96px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(246, 239, 227, .5), rgba(246, 239, 227, .9));
}

[data-theme="dark"] .site-footer {
  background: linear-gradient(180deg, rgba(35, 32, 25, .5), rgba(35, 32, 25, .9));
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-kai);
  font-size: 20px;
  letter-spacing: .2em;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 22px;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--ink-3);
}

/* 上下留 6px 内边距，把 21px 的链接撑到约 33px，触屏也点得准 */
.footer-nav a { padding: 6px 2px; transition: color .25s var(--ease); }

.footer-nav a:hover { color: var(--cinnabar); }

.footer-copy {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--ink-4);
}

.page-head {
  padding: clamp(34px, 5vw, 58px) 0 clamp(20px, 3vw, 32px);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(242, 233, 216, .42), transparent);
}

[data-theme="dark"] .page-head {
  background: linear-gradient(180deg, rgba(201, 164, 104, .05), transparent);
}

.crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--ink-4);
}

.crumb a { transition: color .2s var(--ease); }

.crumb a:hover { color: var(--cinnabar); }

.crumb .sep { opacity: .5; }

.page-head-main {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-top: 18px;
}

.page-title {
  font-family: var(--font-kai);
  font-size: 32px;
  letter-spacing: .22em;
  line-height: 1.3;
}

.page-title .page-title-sub {
  margin-left: 14px;
  font-family: var(--font-serif);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: .16em;
  color: var(--ink-4);
  vertical-align: middle;
}

.page-desc {
  margin-top: 10px;
  font-size: 16px;
  letter-spacing: .06em;
  color: var(--ink-3);
}

.page-count {
  flex: none;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--ink-4);
}

.page-count strong { font-size: 20px; color: var(--cinnabar); font-weight: 400; }

.player {
  position: fixed;
  right: 22px;
  bottom: 88px;                 /* 避开系统任务栏（约 48px） */
  z-index: 60;
  display: flex;
  flex-direction: column;
  align-items: flex-end;        /* 右下角：面板和按钮右对齐 */
  gap: 10px;
  font-family: var(--font-serif);
  /* 容器本身是一块透明布局盒：面板收起时仍占着右下角一大片面积，
     会把下面真正想点的东西挡住（首页「换一条」就是这样失效的）。
     所以容器不接收点击，只有面板 / 播放键 / 提示气泡可点。 */
  pointer-events: none;
}

.player > * { pointer-events: auto; }

.player-panel {
  width: 264px;
  padding: 14px 16px 16px;
  background: linear-gradient(180deg, rgba(255, 253, 248, .97), rgba(248, 242, 231, .95));
  border: 1px solid var(--line-2);
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(63, 48, 32, .08), 0 22px 48px -26px rgba(63, 48, 32, .5);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transform-origin: right bottom;
  transition: opacity .28s var(--ease), transform .28s var(--ease), visibility .28s;
}

.player-panel::before {
  content: "";
  position: absolute;
  inset: 5px;
  border: 1px solid rgba(164, 80, 58, .12);
  border-radius: 6px;
  pointer-events: none;
}

.player-panel { position: relative; }

/* 深色主题：面板必须跟着变深。
   否则底色还是浅米白，而文字用的是深色主题的浅色值，
   曲名会直接“消失”在底色里。 */
[data-theme="dark"] .player-panel {
  background: linear-gradient(180deg, rgba(38, 35, 28, .97), rgba(30, 27, 22, .96));
  border-color: var(--line-2);
  box-shadow: 0 2px 8px rgba(0, 0, 0, .45), 0 22px 48px -26px rgba(0, 0, 0, .9);
}

[data-theme="dark"] .player-panel::before { border-color: rgba(201, 106, 78, .18); }

.player[data-open="false"] .player-panel {
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px) scale(.96);
  pointer-events: none;
}

.player-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  letter-spacing: .22em;
  color: var(--ink-3);
}

.player-head .player-tag { color: var(--cinnabar); }

.player-head-r {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* 添加音乐按钮 */
.player-add {
  display: grid;
  place-items: center;
  width: 20px; height: 20px;
  padding: 0;
  color: var(--ink-4);
  background: transparent;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.player-add svg { width: 12px; height: 12px; }

.player-add:hover {
  color: var(--cinnabar);
  border-color: rgba(164, 80, 58, .5);
  background: rgba(164, 80, 58, .06);
}

/* 曲目列表 */
.player-list {
  list-style: none;
  margin: 0 0 8px;
  padding: 0;
  max-height: 158px;
  overflow-y: auto;
  overscroll-behavior: contain;
  border-bottom: 1px solid var(--line);
  /* 细滚动条：系统默认的白条在深色面板上太扎眼 */
  scrollbar-width: thin;
  scrollbar-color: var(--line-2) transparent;
}

.player-list::-webkit-scrollbar { width: 6px; }

.player-list::-webkit-scrollbar-track { background: transparent; }

.player-list::-webkit-scrollbar-thumb {
  background: var(--line-2);
  border-radius: 3px;
}

.player-list::-webkit-scrollbar-thumb:hover { background: var(--ink-4); }

.player-list:empty { display: none; }

/* 空列表：隐藏下方「当前曲目」区，避免占位文案重复 */
.player[data-empty="true"] .player-info { display: none; }

/* 列表和下方「当前曲目」之间留一点距离 */
.player-list + .player-info { margin-top: 2px; }

.player-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 2px 4px 4px;
  border-radius: 4px;
  cursor: pointer;
  transition: background .16s var(--ease);
}

.player-item:hover { background: rgba(164, 80, 58, .05); }

.player-item.is-active {
  background: rgba(164, 80, 58, .08);
}

/* ---------- 拖动排序 ---------- */
.player-item-grip {
  flex: none;
  display: grid;
  place-items: center;
  width: 12px;
  height: 20px;
  margin-left: -2px;
  color: var(--ink-4);
  /* 默认淡显：让人看得出这里可以拖 */
  opacity: .3;
  cursor: grab;
  touch-action: none;
  transition: opacity .16s var(--ease), color .16s var(--ease);
}

.player-item-grip svg { width: 10px; height: 12px; fill: currentColor; }

.player-item:hover .player-item-grip,
.player-item-grip:focus-visible { opacity: .8; }

.player-item-grip:hover,
.player-item-grip:focus-visible { color: var(--cinnabar); }

/* 触屏没有 hover，手柄常驻淡显 */
@media (hover: none) {
  .player-item-grip { opacity: .5; }
}

.player-item.is-dragging {
  position: relative;
  z-index: 3;
  background: var(--paper-3);
  box-shadow: 0 8px 20px -10px rgba(63, 48, 32, .6);
  cursor: grabbing;
}

.player-item.is-drop-before { box-shadow: inset 0 2px 0 var(--cinnabar); }
.player-item.is-drop-after { box-shadow: inset 0 -2px 0 var(--cinnabar); }

.player-item.is-active .player-item-title { color: var(--cinnabar); }

.player-item-num {
  flex: none;
  width: 16px;
  font-size: 11.5px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}

.player-item.is-active .player-item-num { color: var(--cinnabar); }

.player-item-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.player-item-title {
  font-family: var(--font-kai);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player-item-artist {
  font-size: 11.5px;
  letter-spacing: .03em;
  color: var(--ink-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 删除按钮 */
.player-item-del {
  flex: none;
  display: grid;
  place-items: center;
  width: 18px; height: 18px;
  padding: 0;
  font-size: 14px;
  line-height: 1;
  color: var(--ink-4);
  background: transparent;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  opacity: .38;                 /* 始终可见（移动端没有 hover） */
  transition: opacity .16s var(--ease), color .16s var(--ease), background .16s var(--ease);
}

.player-item:hover .player-item-del,
.player-item-del:focus-visible { opacity: 1; }

.player-item-del:hover {
  color: #fff;
  background: var(--cinnabar);
}

/* 内置曲目没有删除按钮 */
.player-item.is-builtin .player-item-del { display: none; }

/* 空列表提示 */
.player-empty {
  padding: 10px 4px;
  font-size: 12.5px;
  color: var(--ink-3);
  text-align: center;
  letter-spacing: .04em;
}

.player-file { display: none; }

.player-track {
  font-family: var(--font-kai);
  font-size: 16px;
  letter-spacing: .08em;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.player-artist {
  margin-top: 3px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--ink-3);
}

.player-progress {
  position: relative;
  height: 20px;
  margin: 10px 0 2px;
  cursor: pointer;
  touch-action: none;
}

.player-progress::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 9px;
  height: 2px;
  border-radius: 2px;
  background: var(--line-2);
  opacity: .55;
}

.player-bar {
  position: absolute;
  left: 0; top: 9px;
  height: 2px;
  width: 0%;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cinnabar), var(--gold));
  transition: width .15s linear;
}

.player-knob {
  position: absolute;
  top: 4px;
  left: 0%;
  width: 12px; height: 12px;
  margin-left: -6px;
  border-radius: 50%;
  background: var(--cinnabar);
  box-shadow: 0 0 0 3px rgba(164, 80, 58, .14);
  transform: scale(.75);
  opacity: 0;
  transition: opacity .2s var(--ease), transform .2s var(--ease);
}

.player-time {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}

.player-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 10px;
}

.player-btn {
  display: grid;
  place-items: center;
  width: 32px; height: 32px;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 50%;
  color: var(--ink-3);
  cursor: pointer;
  transition: color .22s var(--ease), background .22s var(--ease), transform .22s var(--ease);
}

.player-btn:hover { color: var(--cinnabar); background: var(--cinnabar-soft); }

.player-btn:active { transform: scale(.92); }

.player-btn svg { width: 15px; height: 15px; }

.player-btn svg path, .player-btn svg rect { fill: currentColor; }

.player-btn.is-main {
  width: 40px; height: 40px;
  margin: 0 4px;
  color: #fdf7ee;
  background: var(--cinnabar);
  box-shadow: 0 6px 16px -8px rgba(140, 63, 44, .9);
}

.player-btn.is-main:hover { color: #fff; background: var(--cinnabar-2); }

.player-btn.is-main svg { width: 17px; height: 17px; }

.player-volume {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  padding-top: 9px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--ink-3);
}

.player-volume > span {
  flex: none;
  white-space: nowrap;
}

.player-volume input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  flex: 1 1 auto;
  min-width: 0;
  height: 16px;
  margin: 0;
  background: transparent;
  cursor: pointer;
}

.player-volume input[type="range"]::-webkit-slider-runnable-track {
  height: 2px;
  border-radius: 2px;
  background: var(--line-2);
}

.player-volume input[type="range"]::-moz-range-track {
  height: 2px;
  border-radius: 2px;
  background: var(--line-2);
}

.player-volume input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 10px; height: 10px;
  margin-top: -4px;
  border-radius: 50%;
  background: var(--ink-3);
  transition: background .2s var(--ease);
}

.player-volume input[type="range"]::-moz-range-thumb {
  width: 10px; height: 10px;
  border: 0;
  border-radius: 50%;
  background: var(--ink-3);
}

.player-volume input[type="range"]:hover::-webkit-slider-thumb { background: var(--cinnabar); }

.player-volume input[type="range"]:hover::-moz-range-thumb { background: var(--cinnabar); }

.player-toggle {
  position: relative;
  display: grid;
  place-items: center;
  width: 56px; height: 56px;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  cursor: pointer;
  transition: transform .35s var(--ease);
}

.player-toggle:hover { transform: scale(1.06); }

/* 自动播放被拦：播放键脉冲，提示用户点一下 */
@keyframes needTap {
  0%, 100% { box-shadow: 0 0 0 0 rgba(164, 80, 58, 0); }
  50%      { box-shadow: 0 0 0 9px rgba(164, 80, 58, .16); }
}

.player[data-need-tap="true"] .player-toggle {
  animation: needTap 1.7s ease-in-out infinite;
  border-radius: 50%;
}

@media (prefers-reduced-motion: reduce) {
  .player[data-need-tap="true"] .player-toggle { animation: none; }
}

/* ---------- 琵琶：播放时摇摆 + 音符飘出 ---------- */
/* 默认：轻微摇摆（一进页面就是「活的」） */
@keyframes pipaSwayIdle {
  0%, 100% { transform: rotate(-4deg) translateY(0); }
  50%      { transform: rotate(4deg) translateY(-1.2px); }
}

/* 播放中：加大幅度 */
@keyframes pipaSway {
  0%, 100% { transform: rotate(-5deg); }
  50%      { transform: rotate(5deg); }
}

@keyframes pipaBreath {
  0%, 100% { filter: drop-shadow(0 0 0 rgba(164, 80, 58, 0)); }
  50%      { filter: drop-shadow(0 0 8px rgba(164, 80, 58, .40)); }
}

.player[data-playing="true"] .player-disc {
  animation: pipaSway 3.2s ease-in-out infinite,
             pipaBreath 3.2s ease-in-out infinite;
}

/* 音符：从琵琶中上部飘出、上升、淡出 */
.pipa-note {
  position: absolute;
  left: 50%;
  top: 34%;
  width: 11px;
  height: 11px;
  margin-left: -5.5px;
  color: var(--cinnabar);
  opacity: 0;
  pointer-events: none;
  transform-origin: center;
}

.player[data-playing="true"] .pipa-note {
  animation: pipaNoteFloat 2.8s cubic-bezier(.22, .68, .32, 1) infinite;
}

.pipa-note:nth-of-type(1) { --tx: -14px; --ty: -30px; animation-delay: 0s;   }
.pipa-note:nth-of-type(2) { --tx:  13px; --ty: -34px; animation-delay: .9s; }
.pipa-note:nth-of-type(3) { --tx:  -3px; --ty: -26px; animation-delay: 1.8s;}

@keyframes pipaNoteFloat {
  0%   { opacity: 0;   transform: translate(0, 0) scale(.3) rotate(-14deg); }
  12%  { opacity: .95; }
  65%  { opacity: .80; }
  100% { opacity: 0;   transform: translate(var(--tx), var(--ty)) scale(1) rotate(16deg); }
}

@media (prefers-reduced-motion: reduce) {
  .player .player-disc,
  .player[data-playing="true"] .player-disc { animation: none; transform: none; }
  .player[data-playing="true"] .pipa-note { animation: none; opacity: 0; }
}

.player-toggle:active { transform: translateY(0) scale(.97); }

.player-disc {
  position: absolute;
  inset: 0;
  background-image: url(../images/pipa.png);
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  pointer-events: none;
  transform-origin: 50% 85%;        /* 绕琴身下部摆动，像被扶着 */
  transition: filter .4s var(--ease);
  animation: pipaSwayIdle 3.8s ease-in-out infinite;
}

.player-hint {
  position: absolute;
  right: 64px;
  bottom: 12px;
  padding: 5px 11px;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--ink-2);
  white-space: nowrap;
  background: rgba(255, 253, 248, .95);
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transform: translateX(6px);
  pointer-events: none;
  cursor: pointer;
  transition: opacity .3s var(--ease), transform .3s var(--ease), border-color .25s var(--ease);
}

/* 深色主题：提示气泡同样要变深，否则浅底 + 浅字 */
[data-theme="dark"] .player-hint {
  background: rgba(33, 30, 24, .96);
  border-color: var(--line-2);
}

.player[data-hint="true"] .player-hint {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.player[data-resume="true"] .player-hint {
  color: var(--cinnabar);
  border-color: rgba(164, 80, 58, .35);
}

.player[data-resume="true"] .player-hint::after {
  content: "";
  display: inline-block;
  width: 5px; height: 5px;
  margin-left: 7px;
  vertical-align: middle;
  border-radius: 50%;
  background: var(--cinnabar);
  animation: hint-blink 1.6s var(--ease) infinite;
}

@keyframes hint-blink {
  0%, 100% { opacity: .25; }
  50% { opacity: 1; }
}

@media (max-width: 760px) {
  .player { right: 14px; bottom: 72px; }
  .player-panel { width: min(264px, calc(100vw - 28px)); }
  .player-toggle { width: 48px; height: 48px; }
  .player-hint { display: none; }
}

@media (max-height: 520px) {
  .player-panel { max-height: calc(100vh - 96px); overflow-y: auto; }
}

@media (max-width: 1120px) {
  .search:hover,
  .search:focus-within,
  .search.is-open { width: 180px; }
  .site-nav a { padding: 8px 9px; font-size: 13px; letter-spacing: .08em; }
  .site-nav a::after { left: 9px; right: 9px; }
  .header-tools { gap: 10px; }
}

@media (max-width: 980px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    padding-top: 12px;
    padding-bottom: 10px;
    row-gap: 8px;
  }
  .header-tools {
    flex: 1;
    flex-wrap: wrap;
    row-gap: 6px;
  }
  .search:hover,
  .search:focus-within,
  .search.is-open { width: 164px; }
  .site-nav {
    order: 5;
    flex: 1 0 100%;
    justify-content: center;
    gap: 0;
  }
}

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: fixed;
    inset: 72px 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 18px 22px;
    background: rgba(250, 247, 240, .98);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 40px -30px rgba(63, 48, 32, .6);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
  }
  [data-theme="dark"] .site-nav { background: rgba(30, 27, 23, .98); }
  .site-nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .site-nav a {
    padding: 14px 6px;
    font-size: 16px;
    border-bottom: 1px solid rgba(228, 218, 199, .7);
  }
  [data-theme="dark"] .site-nav a { border-bottom-color: rgba(74, 66, 53, .7); }
  .site-nav a:last-child { border-bottom: 0; }
  .site-nav a::after { left: 6px; right: auto; width: 18px; bottom: 10px; }
  .header-inner { height: 64px; padding-top: 0; padding-bottom: 0; flex-wrap: nowrap; }
  .site-nav { top: 64px; }
  .brand-text small { display: none; }
  .brand-text strong { font-size: 16px; letter-spacing: .12em; }
  .header-tools { gap: 6px; }
  .search:hover,
  .search:focus-within,
  .search.is-open { width: 180px; }
  .search-kbd { display: none; }
  .search-panel { width: calc(100vw - 32px); left: auto; right: 0; }
  .header-tool { padding-left: 4px; gap: 0; }
  .tool-btn { min-width: 32px; height: 36px; padding: 0 6px; }
  .page-head-main { flex-direction: column; align-items: flex-start; gap: 8px; }

  /* 触摸目标：面包屑原来只有 21px 高，加一点上下内边距 */
  .crumb a { padding: 4px 2px; }
}

@media (max-width: 560px) {
  .search { flex: 0 0 34px; position: relative; }
  .search-field { padding: 0 9px; justify-content: center; }
  .search-input { width: 0; opacity: 0; transition: width .25s var(--ease), opacity .2s var(--ease); }
  .search:focus-within { flex: 0 0 34px; }
  .search:focus-within .search-field {
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    width: min(238px, calc(100vw - 130px));
    justify-content: flex-start;
    background: var(--paper-3);
    box-shadow: 0 2px 10px rgba(63, 48, 32, .12);
    z-index: 3;
  }
  [data-theme="dark"] .search:focus-within .search-field {
    background: #26231c;
    box-shadow: 0 2px 10px rgba(0, 0, 0, .5);
  }
  .search:focus-within .search-input { width: auto; opacity: 1; }
  .search:focus-within .search-kbd { display: none; }
  .search-panel {
    position: fixed;
    left: 12px;
    right: 12px;
    top: 58px;
    width: auto;
    max-width: none;
  }
}

/* ============================================================
   超窄屏（320~380px）：头部收紧到单行
   默认尺寸下搜索 + 语言 + 主题 + 菜单按钮共约 175px，
   而 320px 屏幕只剩约 160px，会把菜单按钮挤到第二行，
   跑出头部背景之外压住首屏内容。
   ============================================================ */
@media (max-width: 380px) {
  .header-inner { gap: 10px; }
  .header-tools { gap: 4px; }
  .brand-text strong { font-size: 15px; letter-spacing: .1em; }
  .search { width: 32px; }
  .search:hover,
  .search:focus-within,
  .search.is-open { width: 168px; }
  .tool-btn { min-width: 30px; }
  .lang-btn { min-width: 40px; padding: 0 4px; }
  .nav-toggle { width: 40px; height: 40px; }
}