/* ---- 诀之音：左列曲目清单，右列当前曲目与播放控制。
   音频仍归右上角那个播放器，这里只通过 window.ArcaneMusic 读状态、发动作 ---- */
.music-scroll{
  position:relative;flex:1 1 0;min-height:0;
  overflow:auto;overscroll-behavior:contain;
  scrollbar-width:thin;scrollbar-color:rgba(224,224,224,.2) transparent;
}
.music-scroll:focus-visible{outline:1px solid rgba(224,224,224,.28);outline-offset:-1px}
.music-scroll::-webkit-scrollbar{width:8px}
.music-scroll::-webkit-scrollbar-track{background:transparent}
.music-scroll::-webkit-scrollbar-thumb{background:rgba(224,224,224,.16);border-radius:4px}
.music-scroll::-webkit-scrollbar-thumb:hover{background:rgba(224,224,224,.28)}

.music{
  --body-gap:clamp(24px,2.4vw,48px);
  --list-w:340px;
  /* 封面按可用高度定，低高度时最后一项把控制条也留在首屏里；
     宽度不够时右列靠 flex-wrap 把说明折到封面下方，不硬挤成一条窄栏 */
  --cover:clamp(110px,min(38vh,calc(100dvh - var(--head-foot) - 302px)),760px);
  /* 右列按可用高度定封面；整块会比全局 .wrap 的 2400 上限更宽，这一页单独放开 */
  max-width:none;
  display:flex;flex-direction:column;
  height:100%;
  padding-top:32px;padding-bottom:28px;
}

/* 高度够时两栏压一屏，窄了由内容区横向滚；只有窗口矮到退回整页滚时才上下堆叠 */
@media (min-height:420px){
  .music{min-width:960px}
  .music-main{
    overflow-y:auto;overscroll-behavior:contain;
    scrollbar-width:thin;scrollbar-color:rgba(224,224,224,.16) transparent;
  }
  .music-main::-webkit-scrollbar{width:5px}
  .music-main::-webkit-scrollbar-track{background:transparent}
  .music-main::-webkit-scrollbar-thumb{background:rgba(224,224,224,.14);border-radius:3px}
  .music-main::-webkit-scrollbar-thumb:hover{background:rgba(224,224,224,.26)}
}

.music-body{
  width:100%;flex:1 1 0;min-height:0;
  display:grid;
  grid-template-columns:var(--list-w) minmax(0,1fr);
  grid-template-rows:minmax(0,1fr);
  gap:var(--body-gap);
}

/* ---- 左列清单 ---- */
.music-side{
  position:relative;
  display:flex;flex-direction:column;
  min-width:0;min-height:0;
  padding-right:4px;
}
/* 标题取立言那套无衬线，与诀之忆、诀之影同一字体 */
.music-heading{
  flex:none;margin:0 0 26px;outline:none;white-space:nowrap;
  font-family:var(--display);font-weight:900;
  font-size:clamp(30px,3.4vw,44px);line-height:1.2;letter-spacing:.04em;
  color:var(--paper);
}

.music-list{
  position:relative;
  flex:1 1 0;min-height:0;
  overflow-y:auto;overscroll-behavior:contain;
  scrollbar-width:thin;scrollbar-color:rgba(224,224,224,.16) transparent;
}
.music-list:focus-visible{outline:1px solid rgba(224,224,224,.28);outline-offset:-1px}
.music-list::-webkit-scrollbar{width:5px}
.music-list::-webkit-scrollbar-track{background:transparent}
.music-list::-webkit-scrollbar-thumb{background:rgba(224,224,224,.14);border-radius:3px}
.music-list::-webkit-scrollbar-thumb:hover{background:rgba(224,224,224,.26)}

/* 清单没滚到底时列底浮一枚向下箭头，形制与首页、诀之影那两枚相同 */
.mlist-hint{
  position:absolute;left:0;right:0;top:calc(100% + 4px);
  display:flex;justify-content:center;pointer-events:none;
  opacity:0;transition:opacity .38s ease;
}
.mlist-hint.is-on{opacity:1}
.mlist-hint svg{
  display:block;width:18px;height:18px;color:#de3546;
  animation:intro-hint 2.2s ease-in-out infinite;
}

/* 选中条目与影像清单同一块三段彩条：两端各 8px 红、中间半透明蓝。
   清单只留序号与文字，封面只在右列当前曲目那一处出现 */
.mitem{
  position:relative;
  display:flex;align-items:center;gap:14px;width:100%;
  padding:10px 16px 10px 12px;
  border:0;border-left:1px solid transparent;
  background:none;text-align:left;cursor:pointer;color:inherit;
}
.mitem::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:var(--sweep-bg);
  clip-path:inset(0 100% 0 0);
}
.mitem.is-out::before{
  clip-path:inset(0 0 0 100%);
  transition:clip-path .52s cubic-bezier(.4,.05,.15,1);
}
.mitem[aria-current="true"]::before{
  clip-path:inset(0 0 0 0);
  animation:msweep .52s cubic-bezier(.4,.05,.15,1);
}
@keyframes msweep{
  from{clip-path:inset(0 100% 0 0)}
  to{clip-path:inset(0 0 0 0)}
}
.mitem:focus-visible{outline:1px solid var(--smoke);outline-offset:-3px}
.mitem-no{
  flex:none;width:1.8em;
  font:10px/1.5 var(--sans);letter-spacing:.1em;
  color:rgba(140,140,140,.7);font-variant-numeric:tabular-nums;
}
.mitem-body{display:flex;flex-direction:column;gap:3px;min-width:0}
.mitem-title{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;
  font:13px/1.5 var(--sans);letter-spacing:.01em;
  color:rgba(224,224,224,.68);
  transition:color .25s ease;
}
.mitem:hover .mitem-title{color:var(--smoke)}
.mitem[aria-current="true"] .mitem-title{color:var(--paper)}
.mitem-album{
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  font:10px/1.5 var(--sans);letter-spacing:.06em;
  color:rgba(140,140,140,.72);
}
.mitem[aria-current="true"] .mitem-album{color:rgba(224,224,224,.82)}
.mlist-note{
  margin:0;padding:10px 14px;
  font:11px/1.6 var(--sans);letter-spacing:.04em;color:rgba(140,140,140,.75);
}

/* ---- 右列：封面、专辑与说明、播放控制 ---- */
.music-main{
  display:flex;flex-direction:column;gap:28px;
  min-width:0;min-height:0;
  padding-right:4px;
}
.music-now{
  display:flex;flex-wrap:wrap;
  gap:clamp(24px,2.2vw,40px);
  align-items:flex-start;
  transition:opacity .26s ease;
}
/* 换曲时整块先淡出、换好内容再淡入；淡出这段比淡入短，节奏才不会拖 */
.music-now.is-swap{opacity:0;transition-duration:.15s}
.music-art{
  flex:0 0 var(--cover);
  position:relative;width:var(--cover);aspect-ratio:1;
  margin:0;overflow:hidden;
  background:#070707;border:1px solid var(--line);
}
.music-art img{display:block;width:100%;height:100%;object-fit:cover}
.music-art img[hidden]{display:none}
.music-art-empty{
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  padding:0 18px;text-align:center;
  font:10px/1.6 var(--sans);letter-spacing:.22em;color:rgba(140,140,140,.7);
}
.music-art-empty[hidden]{display:none}

.music-meta{
  flex:1 1 280px;min-width:min(280px,100%);max-width:40em;
  display:flex;flex-direction:column;padding-top:2px;
}
.music-album{
  display:flex;align-items:baseline;gap:12px;margin:0 0 18px;
  font:10px/1 var(--sans);letter-spacing:.2em;color:var(--ash);
}
.music-album > span:first-child{flex:none}
.music-album-name{
  font-size:13px;letter-spacing:.04em;color:var(--smoke);
  overflow-wrap:anywhere;
}
.music-title{
  margin:0;
  font-family:var(--serif);font-weight:400;
  font-size:clamp(24px,2vw,34px);line-height:1.4;letter-spacing:.02em;
  color:var(--paper);overflow-wrap:anywhere;
}
.music-note{
  margin-top:clamp(24px,3vh,38px);padding-top:18px;
  border-top:1px solid var(--line);
}
/* 出处压在上，字色压淡；介绍另起一段，两段之间比正文行距再空一点 */
.music-src{
  margin:0 0 12px;
  font:12px/1.7 var(--sans);letter-spacing:.05em;
  color:rgba(140,140,140,.72);
  overflow-wrap:anywhere;
}
.music-src[hidden]{display:none}
.music-desc{
  margin:0;white-space:pre-line;
  font-size:15px;line-height:1.9;color:rgba(224,224,224,.76);
}
.music-desc.is-empty{color:rgba(140,140,140,.6)}

/* 控制条紧接在「封面 + 说明」之下，不再贴到列底；列底剩下的空由列自己留着。
   宽度与上方那一块对齐，别在宽屏上拉成一整条。说明长短一变它会换位置，
   位移由脚本补一段 transform 过渡，所以这里只给 transform 留时长 */
.music-console{
  flex:none;
  display:flex;align-items:center;gap:clamp(16px,1.6vw,24px);
  max-width:calc(var(--cover) + 40em + 40px);
  transition:transform .34s cubic-bezier(.4,.05,.15,1);
}
/* 进度与音量叠成两行，正好吃下播放键那 52px，控制台高度不变；
   音量条与进度条左端对齐，右端让给时间 */
.music-bars{
  flex:1;min-width:0;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  grid-template-rows:14px 14px;
  align-items:center;
  row-gap:10px;column-gap:18px;
}
.music-seek,.music-vol{
  position:relative;height:14px;min-width:0;
  cursor:pointer;outline:none;
  touch-action:none;-webkit-user-select:none;user-select:none;
}
.music-seek{grid-column:1;grid-row:1}
.music-vol-row{
  grid-column:1;grid-row:2;
  display:flex;align-items:center;gap:11px;min-width:0;
}
.music-vol-ico{flex:none;display:block;width:11px;height:11px;color:var(--ash)}
.music-vol{flex:1;min-width:0}
.music-seek::before,.music-vol::before{
  content:"";position:absolute;left:0;right:0;top:50%;height:3px;
  background:var(--line);transform:translateY(-50%);
}
.music-seek:hover::before,.music-seek:focus-visible::before,
.music-seek.active::before,
.music-vol:hover::before,.music-vol:focus-visible::before,
.music-vol.active::before{background:rgba(224,224,224,.32)}
.music-fill{
  position:absolute;left:0;top:50%;width:0;height:3px;
  background:var(--ash);transform:translateY(-50%);
  transition:background .2s ease;
}
.music-seek:hover .music-fill,.music-seek:focus-visible .music-fill,
.music-seek.active .music-fill,
.music-vol:hover .music-fill,.music-vol:focus-visible .music-fill,
.music-vol.active .music-fill{background:var(--smoke)}
.music-knob{
  position:absolute;left:0;top:50%;width:9px;height:9px;margin:-4.5px 0 0 -4.5px;
  border-radius:50%;background:var(--smoke);
  transform:scale(0);transition:transform .18s ease;
}
.music-seek:hover .music-knob,.music-seek:focus-visible .music-knob,
.music-seek.active .music-knob,
.music-vol:hover .music-knob,.music-vol:focus-visible .music-knob,
.music-vol.active .music-knob{transform:scale(1)}
.music-seek[aria-disabled="true"]{cursor:default}
.music-seek[aria-disabled="true"] .music-knob{display:none}
.music-time{
  grid-column:2;grid-row:1;
  flex:none;display:flex;align-items:baseline;gap:8px;
  font:10px/1 var(--sans);letter-spacing:.12em;
  color:rgba(140,140,140,.75);font-variant-numeric:tabular-nums;
}
.music-time span:first-child::after{content:"/";margin-left:8px;color:rgba(140,140,140,.45)}

.music-controls{flex:none;display:flex;align-items:center;gap:12px}
.music-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;padding:0;
  border:1px solid var(--line);border-radius:50%;
  background:none;color:var(--ash);cursor:pointer;
  transition:color .25s ease,border-color .25s ease;
}
.music-btn:hover{border-color:rgba(224,224,224,.4);color:var(--smoke)}
.music-btn:focus-visible{outline:1px solid var(--smoke);outline-offset:4px}
.music-btn:disabled{opacity:.4;cursor:default}
.music-btn:disabled:hover{border-color:var(--line);color:var(--ash)}
.music-btn svg{display:block;width:11px;height:11px}
.music-btn.is-play{width:52px;height:52px;margin:0 2px}
.music-btn.is-play svg{width:14px;height:14px}
.music-btn.is-play .i-play{margin-left:2px}
.music-btn.is-play .i-pause{display:none}
.music-btn.is-play.is-playing .i-play{display:none}
.music-btn.is-play.is-playing .i-pause{display:block}
.music-btn.is-play::after{
  content:"";display:none;width:14px;height:14px;border-radius:50%;
  border:1px solid rgba(224,224,224,.22);border-top-color:var(--smoke);
}
.music-btn.is-play.is-loading .i-play,
.music-btn.is-play.is-loading .i-pause{display:none}
.music-btn.is-play.is-loading::after{display:block;animation:music-spin .8s linear infinite}
@keyframes music-spin{to{transform:rotate(360deg)}}

/* 窗口矮到整页开始滚（与首页同一道 420 门槛）时，退回上下堆叠 */
@media (max-height:419px){
  .music{height:auto;min-height:100%;padding-top:24px;padding-bottom:40px}
  .music-body{display:flex;flex-direction:column;gap:34px}
  .music-main{order:1;gap:22px;overflow:visible}
  .music-side{order:2;display:block;padding-right:0}
  .music-list{flex:none;min-height:0;overflow:visible}
  .mlist-hint{display:none}
  .music{--cover:200px}
  .music-console{margin-top:8px}
  .music-heading{font-size:30px}
  .music-title{font-size:22px}
  .music-desc{font-size:14px;line-height:1.8}
}

@media (prefers-reduced-motion:reduce){
  .mitem,.mitem::before,.music-fill,.music-knob,.music-btn,.music-now,.music-console{transition:none}
  .mitem.is-out::before,
  .mitem[aria-current="true"]::before{animation:none;transition:none}
  .mlist-hint svg{animation:none;opacity:.55}
  .music-btn.is-play.is-loading::after{animation-duration:2.4s}
}