/* 初律音频调试 · 3D service module
   White paper / warm hardware / red pencil notes / iPhone-like sheet */
.tune-entry{
  margin-top:22px;display:flex;align-items:center;gap:12px;width:100%;
  padding:13px 14px 13px 12px;border:1px solid rgba(11,12,14,.14);border-radius:16px;
  background:rgba(255,255,255,.58);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  cursor:pointer;text-align:left;pointer-events:auto;transition:background .35s var(--ease),border-color .35s var(--ease),transform .5s var(--ease),box-shadow .5s var(--ease);
  -webkit-tap-highlight-color:transparent;
}
.tune-entry:hover{background:rgba(255,255,255,.9);border-color:rgba(11,12,14,.28);transform:translateY(-2px);box-shadow:0 12px 30px rgba(30,27,20,.08)}
.tune-entry:focus-visible{outline:1px solid var(--ink);outline-offset:3px}
.tune-entry .te-no{width:27px;font:9px/1 Consolas,monospace;letter-spacing:.12em;color:#a23b2f;flex:none}
.tune-entry .te-main{flex:1;min-width:0}
.tune-entry .te-main b{display:block;font-size:13.5px;font-weight:500;letter-spacing:.02em}
.tune-entry .te-main span{display:block;margin-top:4px;font:8.5px/1.3 Consolas,monospace;letter-spacing:.12em;color:var(--muted)}
.tune-entry .te-arrow{font:16px/1 Consolas,monospace;color:#a23b2f;transition:transform .45s var(--ease)}
.tune-entry:hover .te-arrow{transform:translateX(4px)}

/* overlay */
#tuneLayer{
  position:fixed;inset:0;z-index:220;display:grid;place-items:center;
  background:#f4f4f1;visibility:hidden;pointer-events:none;
  clip-path:circle(0 at var(--tx,50vw) var(--ty,50vh));
  transition:clip-path .82s cubic-bezier(.22,1,.36,1),visibility 0s linear .82s;
  --paper:#f6f4ee;--panel:#fbfaf6;--ink:#151515;--soft:#6b675e;--line:rgba(21,21,21,.15);
  --red:#a23b2f;--cream:#ead9ad;--metal:#c9c2b3;--serif:"Songti SC","SimSun","STSong",serif;
  color:var(--ink);
}
#tuneLayer.is-open{visibility:visible;pointer-events:auto;clip-path:circle(150vmax at var(--tx,50vw) var(--ty,50vh));transition:clip-path .82s cubic-bezier(.22,1,.36,1),visibility 0s}
#tuneLayer::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(ellipse at 50% 38%,rgba(255,255,255,.65),transparent 60%),
    linear-gradient(180deg,rgba(255,255,255,.28),transparent 38%,rgba(180,172,158,.07));
}
.tune-shell{
  position:relative;width:calc(100% - 34px);height:calc(100% - 34px);max-width:1700px;
  background:var(--paper);border:1px solid rgba(21,21,21,.16);border-radius:28px;
  box-shadow:0 38px 110px rgba(28,25,19,.18),0 4px 18px rgba(28,25,19,.07);
  display:grid;grid-template-rows:62px minmax(0,1fr) 62px;overflow:hidden;
  opacity:0;transform:translateY(24px) scale(.985);
  transition:opacity .48s var(--ease),transform .72s cubic-bezier(.22,1,.36,1);
}
#tuneLayer.is-open .tune-shell{opacity:1;transform:none;transition-delay:.08s}
.tune-top{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:0 22px;border-bottom:1px solid var(--line);background:rgba(251,250,246,.72);
}
.tune-back,.tune-sound,.tune-tab{
  appearance:none;border:0;background:transparent;color:var(--ink);cursor:pointer;
  font:9px/1 Consolas,monospace;letter-spacing:.15em;padding:8px 0;
}
.tune-back{display:flex;align-items:center;gap:8px;color:var(--soft)}
.tune-back:hover,.tune-sound:hover{color:var(--ink)}
.tune-back span{font-size:13px;color:var(--red)}
.tune-brand{display:flex;align-items:center;gap:12px;min-width:0}
.tune-brand b{font:10px/1 Consolas,monospace;letter-spacing:.3em;font-weight:400}
.tune-brand i{display:block;font:7px/1.2 Consolas,monospace;letter-spacing:.2em;color:#9a958b;font-style:normal;margin-top:4px}
.tune-brand .tb-line{width:38px;height:1px;background:var(--line)}
.tune-audio{display:flex;align-items:center;gap:8px;font:8px/1 Consolas,monospace;letter-spacing:.15em;color:var(--soft);white-space:nowrap}
.tune-audio i{width:5px;height:5px;border-radius:50%;background:#719b7d;box-shadow:0 0 0 3px rgba(113,155,125,.12)}
.tune-sound{color:var(--soft);border:1px solid var(--line);border-radius:999px;padding:7px 12px;transition:background .3s,border-color .3s}
.tune-sound.is-muted{color:#a23b2f;border-color:rgba(162,59,47,.32)}
.tune-body{display:grid;grid-template-columns:292px minmax(0,1fr) 322px;min-height:0;background:var(--paper)}
.tune-left{position:absolute;left:0;top:0;bottom:0;width:320px;padding:32px 20px 24px 28px;z-index:6;display:flex;flex-direction:column;min-height:0;overflow:auto;background:linear-gradient(90deg,rgba(246,244,238,.96),rgba(246,244,238,.72) 62%,rgba(246,244,238,0));border:0;pointer-events:auto}
.tune-eyebrow{display:flex;align-items:center;gap:9px;font:8px/1 Consolas,monospace;letter-spacing:.24em;color:#918b80}
.tune-eyebrow b{font-weight:400;color:var(--red)}
.tune-left h1{font-family:var(--serif);font-size:40px;font-weight:500;line-height:1.08;letter-spacing:-.06em;margin:24px 0 0}
.tune-sub{margin:16px 0 0;font:13px/1.8 "Microsoft YaHei",sans-serif;color:var(--ink)}
.tune-copy{margin:22px 0 0;font:12px/1.95 "Microsoft YaHei",sans-serif;color:var(--soft)}
.tune-copy b{color:var(--ink);font-weight:400}
.tune-red{font-family:"KaiTi","STKaiti",serif;font-size:20px;color:var(--red);margin:20px 0 0;white-space:nowrap}
.tune-tabs{display:flex;align-items:center;gap:0;margin:26px 0 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.tune-tab{flex:1;padding:11px 0;color:#8f8a80;font-size:8px;text-align:left;position:relative}
.tune-tab+.tune-tab{text-align:right}
.tune-tab.is-active{color:var(--ink)}
.tune-tab.is-active:after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:var(--red)}
.tune-note{margin:22px 0 0;font:10px/1.8 "Microsoft YaHei",sans-serif;color:#8e897f}
.tune-note:before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--ink);margin-right:8px;vertical-align:1px}
.tune-stage{position:relative;min-width:0;min-height:0;cursor:grab;background:
  radial-gradient(ellipse at 50% 44%,#fffdf8 0%,#f3f1ea 46%,#e9e5db 100%);
  overflow:hidden;touch-action:none;overscroll-behavior:contain;user-select:none;
}
.tune-stage:before{content:none}
#tuneFluid{position:absolute;inset:0;width:100%;height:100%;display:block;z-index:0;pointer-events:none}
.tune-stage:active{cursor:grabbing}
.tune-stage:after{content:"";position:absolute;inset:0;pointer-events:none;background:
  linear-gradient(180deg,rgba(255,255,255,.2),transparent 20%,transparent 82%,rgba(180,172,158,.07)),
  repeating-linear-gradient(90deg,transparent 0,transparent calc(25% - 1px),rgba(21,21,21,.025) 25%);
}
#tuneCanvas{position:absolute;inset:0;width:100%;height:100%;display:block;z-index:1}
.tune-stage-label{position:absolute;left:22px;top:20px;z-index:3;font:8px/1.4 Consolas,monospace;letter-spacing:.2em;color:#9a9489;pointer-events:none}
.tune-stage-label b{display:block;color:#5e5a51;font-weight:400;margin-bottom:4px}
.tune-drag{position:absolute;left:22px;bottom:20px;z-index:3;font:8px/1 Consolas,monospace;letter-spacing:.14em;color:#9a9489;pointer-events:none}
.tune-explode{
  position:absolute;right:22px;bottom:18px;z-index:5;appearance:none;cursor:pointer;
  border:1px solid rgba(21,21,21,.2);border-radius:999px;background:rgba(251,250,246,.9);
  color:var(--ink);font:9px/1 Consolas,monospace;letter-spacing:.14em;padding:11px 15px;
  backdrop-filter:blur(8px);transition:background .3s,border-color .3s,transform .4s var(--ease);
}
.tune-explode:hover{background:#fff;border-color:rgba(21,21,21,.42);transform:translateY(-1px)}
.tune-explode.is-open{background:#171614;color:#f6f4ee;border-color:#171614}
.tune-hotspots{position:absolute;inset:0;z-index:4;pointer-events:none;overflow:hidden}
.tune-hotspot{
  position:absolute;display:flex;align-items:center;gap:7px;pointer-events:auto;cursor:pointer;
  transform:translate(-50%,-50%);opacity:0;transition:opacity .5s var(--ease);
}
#tuneEntry{position:relative;z-index:20}
#tuneLayer.is-exploded .tune-hotspot,#tuneLayer .tune-hotspot.is-on{opacity:1;pointer-events:auto}
.tune-hotspot i{width:7px;height:7px;border-radius:50%;background:#a23b2f;box-shadow:0 0 0 4px rgba(162,59,47,.12);flex:none}
.tune-hotspot span{font:8px/1.2 Consolas,monospace;letter-spacing:.12em;color:#433f38;white-space:nowrap;background:rgba(251,250,246,.85);padding:4px 6px;border-radius:3px;border:1px solid rgba(21,21,21,.09);backdrop-filter:blur(4px)}
.tune-hotspot:hover span{background:#fff;border-color:rgba(21,21,21,.25)}
.tune-hotspot.is-on i{background:#151515;box-shadow:0 0 0 5px rgba(21,21,21,.12)}
.tune-side{padding:26px 22px 24px;border-left:1px solid var(--line);overflow:auto;min-height:0}
.tune-side-head{display:flex;align-items:center;justify-content:space-between;gap:12px;font:8px/1 Consolas,monospace;letter-spacing:.2em;color:#989287;margin:0 0 14px}
.tune-side-head b{font-weight:400;color:var(--ink)}
.tune-side-head span{font-size:7px;color:#aaa398}
.tune-parts{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.tune-part{appearance:none;border:0;border-bottom:1px solid var(--line);background:transparent;width:100%;display:grid;grid-template-columns:22px 1fr auto;grid-template-rows:auto auto;column-gap:10px;text-align:left;padding:11px 0;cursor:pointer;color:var(--ink);transition:background .3s}
.tune-part:hover{background:rgba(255,255,255,.55)}
.tune-part em{grid-row:1/3;font:8px/1 Consolas,monospace;letter-spacing:.08em;color:#a29b90;align-self:center;font-style:normal}
.tune-part b{font:12px/1.3 "Microsoft YaHei",sans-serif;font-weight:500}
.tune-part small{grid-row:2;grid-column:2;font:8px/1.5 Consolas,monospace;letter-spacing:.08em;color:#9a9489;margin-top:3px}
.tune-part .arr{grid-row:1/3;grid-column:3;align-self:center;font:11px/1 Consolas,monospace;color:#b1aa9f;transition:transform .3s,color .3s}
.tune-part:hover .arr{transform:translateX(3px);color:var(--red)}
.tune-part.is-on{background:rgba(162,59,47,.06)}
.tune-part.is-on .arr{color:var(--red)}
.tune-service{margin-top:26px}
.tune-services{display:flex;flex-wrap:wrap;gap:6px}
.tune-service-btn{appearance:none;border:1px solid var(--line);border-radius:999px;background:transparent;color:#5f5b52;font:8px/1 "Microsoft YaHei",sans-serif;padding:7px 9px;cursor:pointer;transition:background .3s,color .3s,border-color .3s}
.tune-service-btn:hover{background:rgba(255,255,255,.75);color:var(--ink)}
.tune-service-btn.is-on{background:#171614;color:#f6f4ee;border-color:#171614}
#tuneServiceText{margin:14px 0 0;font:10px/1.85 "Microsoft YaHei",sans-serif;color:#7f7a70;min-height:54px}
.tune-side-foot{margin-top:24px;border-top:1px solid var(--line);padding-top:13px;font:7.5px/1.7 Consolas,monospace;letter-spacing:.1em;color:#a19a8f}
.tune-foot{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:0 22px;border-top:1px solid var(--line);background:rgba(251,250,246,.74)}
.tune-price{font:8.5px/1.5 Consolas,monospace;letter-spacing:.1em;color:#837d72;white-space:nowrap}
.tune-price b{color:var(--ink);font-weight:400}
.tune-price span{display:inline-block;margin-left:10px;color:#a23b2f}
.tune-status{font:9px/1.4 "Microsoft YaHei",sans-serif;color:#8f897e;letter-spacing:.06em;text-align:center;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tune-hint{font:7.5px/1.4 Consolas,monospace;letter-spacing:.12em;color:#a39c90;text-align:right;white-space:nowrap;min-width:0}
.tune-track-pick{display:block;margin:0 0 3px;font:7px/1 Consolas,monospace;letter-spacing:.2em;color:#aaa398;text-align:right}
.tune-tracker{display:flex;align-items:center;justify-content:flex-end;gap:4px;min-width:0}
.tune-tracker button{appearance:none;border:0;background:transparent;color:#a29b90;font:11px/1 Consolas,monospace;padding:2px 3px;cursor:pointer;transition:color .3s}
.tune-tracker button:hover{color:var(--red)}
#tuneTrack{appearance:none;-webkit-appearance:none;border:0;background:transparent;color:#5d584f;font:8px/1.5 Consolas,monospace;letter-spacing:.06em;text-align:right;cursor:pointer;max-width:168px;outline:none}
#tuneTrack:hover{color:var(--ink)}
body.tune-open{overflow:hidden}
body.tune-open .hero,body.tune-open .dock,body.tune-open .topbar{filter:blur(3px);opacity:.35;transition:opacity .5s var(--ease),filter .5s var(--ease)}

@media(max-width:1050px){
  .tune-body{grid-template-columns:minmax(240px,270px) minmax(0,1fr) 280px}
  .tune-left h1{font-size:38px}
  .tune-shell{width:calc(100% - 20px);height:calc(100% - 20px)}
}
@media(max-width:820px){
  .tune-shell{width:100%;height:100%;border-radius:0;border:0;grid-template-rows:56px minmax(0,1fr) auto}
  .tune-top{height:56px;padding:0 14px;gap:8px}
  .tune-brand .tb-line,.tune-brand i,.tune-audio span{display:none}
  .tune-audio{font-size:7px}
  .tune-sound{padding:6px 9px;font-size:8px}
  .tune-body{display:block;overflow:auto}
  .tune-left{padding:22px 18px 16px;border-right:0;overflow:visible}
  .tune-left h1{font-size:36px;margin-top:18px}
  .tune-sub{font-size:12px;margin-top:12px}
  .tune-copy{margin-top:16px;font-size:11px}
  .tune-red{font-size:18px;margin-top:15px}
  .tune-tabs{margin-top:18px}
  .tune-note{display:none}
  .tune-stage{height:360px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .tune-side{border-left:0;padding:20px 18px 24px;overflow:visible}
  .tune-foot{padding:11px 14px;display:grid;grid-template-columns:1fr auto;row-gap:6px}
  .tune-price{font-size:7.5px;grid-column:1/3}
  .tune-status{text-align:left;white-space:normal;font-size:8px}
  .tune-hint{display:none}
  .tune-entry{margin-top:18px;padding:11px 12px}
  .tune-entry .te-main b{font-size:12.5px}
  .tune-entry .te-main span{font-size:8px}
  .tune-explode{right:14px;bottom:14px;padding:10px 12px;font-size:8px}
  .tune-stage-label{left:14px;top:14px}
  .tune-drag{left:14px;bottom:14px}
  .tune-hotspot span{font-size:7px;padding:3px 4px}
}
@media(max-width:430px){
  .tune-left h1{font-size:32px}
  .tune-stage{height:330px}
  .tune-price span{display:block;margin-left:0;margin-top:2px}
  .tune-brand b{font-size:8px}
}
@media(prefers-reduced-motion:reduce){
  #tuneLayer,.tune-shell,.tune-entry,.tune-hotspot,.tune-part,.tune-explode{transition:none!important}
}

/* ===== v2 unified stage / player / fx ===== */
.tune-shell{grid-template-rows:58px minmax(0,1fr) 78px}
.tune-body{display:block;position:relative;overflow:hidden;background:var(--paper)}
.tune-left{position:absolute;left:32px;top:28px;width:262px;z-index:6;padding:0;border:0;background:linear-gradient(90deg,rgba(246,244,238,.98),rgba(246,244,238,.74) 78%,rgba(246,244,238,0));pointer-events:none;overflow:visible}
.tune-left button{pointer-events:auto}
.tune-left h1{font-size:38px;margin-top:20px;letter-spacing:-.07em}
.tune-left .tune-copy{font-size:12.5px}
.tune-left .tune-tabs{margin-top:20px}
.tune-stage{position:absolute;inset:0;width:100%;height:100%;border:0;z-index:1;background:radial-gradient(ellipse at 52% 42%,#fffdf7 0%,#f6f3eb 44%,#eeeae1 100%)}
.tune-stage-label{left:auto;right:340px;top:20px;text-align:right}
.tune-side{position:absolute;right:22px;top:22px;width:300px;max-height:calc(100% - 30px);z-index:7;padding:20px 18px 16px;border:0;border-radius:22px;background:rgba(251,250,246,.86);box-shadow:0 24px 70px rgba(37,32,24,.10),inset 0 0 0 1px rgba(21,21,21,.07);backdrop-filter:blur(22px) saturate(1.15);-webkit-backdrop-filter:blur(22px) saturate(1.15);overflow:auto}
.tune-side::-webkit-scrollbar{width:0}
.tune-explode{right:340px;bottom:18px;left:auto;z-index:8}
.tune-drag{left:calc(50% - 40px);bottom:14px;z-index:5}
.tune-foot{display:grid;grid-template-columns:200px minmax(0,1fr) 210px;gap:16px;padding:0 20px;border-top:1px solid var(--line);background:rgba(251,250,246,.86);backdrop-filter:blur(18px)}
.tune-player{display:flex;align-items:center;gap:9px;min-width:0}
.tune-play{width:36px;height:36px;border-radius:50%;flex:none;border:1px solid rgba(21,21,21,.2);background:#171614;color:#f6f4ee;font:9px/1 "Microsoft YaHei",sans-serif;cursor:pointer;transition:transform .3s var(--ease),background .3s;box-shadow:0 5px 16px rgba(23,22,20,.18)}
.tune-play:hover{transform:scale(1.05)}
.tune-play.is-paused{background:transparent;color:#171614}
.tune-time{font:9px/1 Consolas,monospace;color:#6e695f;min-width:34px;text-align:center;letter-spacing:.04em}
#tuneSeek{flex:1;min-width:80px;height:18px;appearance:none;background:transparent;cursor:pointer}
#tuneSeek::-webkit-slider-runnable-track{height:2px;background:rgba(21,21,21,.18);border-radius:2px}
#tuneSeek::-webkit-slider-thumb{appearance:none;width:9px;height:9px;margin-top:-3.5px;border-radius:50%;background:#171614;box-shadow:0 0 0 3px rgba(246,244,238,.9)}
#tuneSeek::-moz-range-track{height:2px;background:rgba(21,21,21,.18);border-radius:2px}
#tuneSeek::-moz-range-thumb{width:9px;height:9px;border:0;border-radius:50%;background:#171614}
.tune-fx{margin-top:18px;border-top:1px solid var(--line);padding-top:10px}
.fx-row{display:grid;grid-template-columns:54px minmax(0,1fr) 34px;align-items:center;gap:8px;padding:5px 0;border-bottom:1px solid rgba(21,21,21,.06)}
.fx-row label{font-size:10.5px;letter-spacing:.02em;color:#4f4b43;white-space:nowrap}
.fx-row input[type=range]{width:100%;height:16px;appearance:none;background:transparent;cursor:pointer}
.fx-row input[type=range]::-webkit-slider-runnable-track{height:2px;background:rgba(21,21,21,.16);border-radius:2px}
.fx-row input[type=range]::-webkit-slider-thumb{appearance:none;width:8px;height:8px;margin-top:-3px;border-radius:50%;background:#a23b2f}
.fx-row input[type=range]::-moz-range-track{height:2px;background:rgba(21,21,21,.16)}
.fx-row input[type=range]::-moz-range-thumb{width:8px;height:8px;border:0;border-radius:50%;background:#a23b2f}
.fx-val{font:8px/1 Consolas,monospace;color:#8b8478;text-align:right}
.tune-status{margin-top:12px;font:8px/1.65 Consolas,monospace;letter-spacing:.08em;color:#8a8274;min-height:28px}
@media (max-width:1050px){
  .tune-shell{grid-template-rows:56px minmax(0,1fr) auto}
  .tune-body{display:grid;grid-template-columns:1fr;overflow:auto}
  .tune-left{position:relative;left:auto;top:auto;width:auto;padding:22px 22px 0;order:1;pointer-events:auto}
  .tune-stage{position:relative;inset:auto;height:420px;order:2}
  .tune-side{position:relative;right:auto;top:auto;width:auto;max-height:none;margin:0 14px 14px;order:3;padding:18px;border-radius:18px;box-shadow:inset 0 0 0 1px rgba(21,21,21,.07)}
  .tune-explode{right:18px;bottom:16px}
  .tune-stage-label{right:18px;top:14px}
  .tune-drag{left:18px;bottom:16px}
  .tune-foot{grid-template-columns:1fr;gap:8px;padding:12px 18px 14px}
  .tune-player{width:100%}
}
@media (max-width:820px){
  .tune-left h1{font-size:34px}
  .tune-stage{height:360px}
  .tune-side{margin:0 10px 10px;padding:16px}
}

/* footer fit */
.tune-foot{grid-template-columns:228px minmax(0,1fr) 190px}
.tune-price{font:8px/1.25 Consolas,monospace;letter-spacing:.02em;white-space:nowrap;overflow:hidden}
.tune-price b{font-size:9px}
.tune-hint{font:7.5px/1.4 Consolas,monospace;text-align:right}
@media (max-width:1050px){.tune-foot{grid-template-columns:1fr}}

.tune-price span{display:none}
.tune-price{max-width:200px}

/* ===== v3 integrated left / modern player / visible track deck ===== */
.tune-shell{grid-template-rows:58px minmax(0,1fr) 74px}
.tune-left{left:36px;top:30px;width:300px;padding:0;background:none;pointer-events:none;overflow:visible}
.tune-left h1{font-size:34px;line-height:1.05;margin-top:18px;letter-spacing:-.06em;max-width:280px}
.tune-left .tune-copy{max-width:270px;font-size:12.5px;line-height:1.65;color:#59544b}
.tune-left .tune-tabs{margin-top:18px;max-width:280px}
.tune-left .tune-note{display:none}
.tune-stage::before{content:"";position:absolute;inset:0;z-index:4;pointer-events:none;background:linear-gradient(90deg,rgba(246,244,238,.985) 0%,rgba(246,244,238,.96) 18%,rgba(246,244,238,.72) 31%,rgba(246,244,238,.28) 41%,rgba(246,244,238,0) 52%)}
.tune-stage-label{right:334px;top:18px}
.tune-side{right:22px;top:18px;width:304px;max-height:calc(100% - 28px)}
.tune-foot{grid-template-columns:214px minmax(0,1fr) 258px;gap:14px;padding:0 22px;background:rgba(251,250,246,.9)}
.tune-play{position:relative;width:42px;height:42px;border:0;background:#171614;font-size:0;box-shadow:0 8px 22px rgba(23,22,20,.18)}
.tune-play::before{content:"";display:block;width:0;height:0;margin-left:2px;border-top:6px solid transparent;border-bottom:6px solid transparent;border-left:9px solid #f6f4ee}
.tune-play:not(.is-paused)::before{width:10px;height:12px;margin:0;border:0;border-left:3px solid #f6f4ee;border-right:3px solid #f6f4ee}
.tune-play.is-paused{background:#171614;color:#f6f4ee}
.tune-time{font-size:9.5px;color:#6a655c;min-width:38px}
#tuneSeek{height:24px}
#tuneSeek::-webkit-slider-runnable-track{height:4px;border-radius:4px;background:linear-gradient(90deg,#171614 0 var(--p,0%),rgba(21,21,21,.15) var(--p,0%) 100%)}
#tuneSeek::-webkit-slider-thumb{width:11px;height:11px;margin-top:-3.5px;background:#171614;box-shadow:0 0 0 4px rgba(246,244,238,.95)}
#tuneSeek::-moz-range-track{height:4px;border-radius:4px;background:linear-gradient(90deg,#171614 0 var(--p,0%),rgba(21,21,21,.15) var(--p,0%) 100%)}
#tuneSeek::-moz-range-thumb{width:11px;height:11px;background:#171614}
.tune-hint{position:relative;display:flex;align-items:center;justify-content:flex-end;text-align:right;overflow:visible}
.tune-track-button{appearance:none;border:0;background:transparent;padding:4px 0;display:grid;grid-template-columns:1fr auto;grid-template-rows:auto auto;column-gap:12px;align-items:end;cursor:pointer;text-align:right;color:#171614;min-width:0}
.tune-track-button span{grid-column:1/-1;font:7px/1 Consolas,monospace;letter-spacing:.2em;color:#9b9385;text-align:right}
.tune-track-button b{font:600 10px/1.2 "Microsoft YaHei",sans-serif;letter-spacing:.04em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:184px}
.tune-track-button em{font:8px/1 Consolas,monospace;font-style:normal;color:#8a8275}
.tune-track-button:hover b{color:#a23b2f}
.tune-track-menu{position:absolute;right:0;bottom:calc(100% + 14px);width:306px;padding:8px;border-radius:16px;background:rgba(251,250,246,.98);box-shadow:0 26px 60px rgba(32,27,20,.16),inset 0 0 0 1px rgba(21,21,21,.08);backdrop-filter:blur(18px);opacity:0;visibility:hidden;transform:translateY(8px) scale(.985);transform-origin:bottom right;transition:opacity .28s var(--ease),transform .34s var(--ease),visibility .28s;z-index:20;text-align:left}
.tune-track-menu.is-open{opacity:1;visibility:visible;transform:none}
.tune-track-menu button{appearance:none;border:0;background:transparent;width:100%;display:grid;grid-template-columns:26px 1fr;gap:8px;align-items:center;padding:10px;border-radius:10px;text-align:left;cursor:pointer;color:#171614}
.tune-track-menu button:hover{background:rgba(21,21,21,.05)}
.tune-track-menu button.is-on{background:#171614;color:#f6f4ee}
.tune-track-menu em{font:8px/1 Consolas,monospace;font-style:normal;color:#9b9385}
.tune-track-menu button.is-on em{color:#aaa398}
.tune-track-menu span{display:grid;gap:3px;font:600 10px/1.2 "Microsoft YaHei",sans-serif;letter-spacing:.02em}
.tune-track-menu small{font:7px/1 Consolas,monospace;letter-spacing:.08em;color:#9b9385}
.tune-track-menu button.is-on small{color:#b7afa2}
@media (max-width:1050px){
  .tune-left{position:relative;left:auto;top:auto;width:auto;padding:22px 22px 0;pointer-events:auto}
  .tune-stage::before{display:none}
  .tune-foot{grid-template-columns:1fr;gap:10px;padding:12px 18px 14px}
  .tune-hint{justify-content:flex-start;text-align:left}
  .tune-track-button{text-align:left}
  .tune-track-button span,.tune-track-button em{text-align:left}
  .tune-track-menu{right:auto;left:0;width:min(300px,calc(100vw - 36px))}
}

/* final track affordance */
.tune-track-button{position:relative;padding:8px 26px 8px 12px;border:1px solid rgba(21,21,21,.13);border-radius:10px;background:rgba(255,253,247,.7);box-shadow:0 4px 12px rgba(35,30,22,.04)}
.tune-track-button:after{content:"⌄";position:absolute;right:10px;top:50%;transform:translateY(-48%);font:12px/1 Consolas,monospace;color:#8a8275}
.tune-track-button:hover{background:#fffdf7;border-color:rgba(21,21,21,.28)}
.tune-track-button b{max-width:196px}

/* menu fit + no document-close on own footer */
.tune-track-menu{right:18px;width:280px}
@media (max-width:1050px){.tune-track-menu{right:auto;left:0;width:min(280px,calc(100vw - 36px))}}

/* one-piece explode, guitar note, less white haze */
.tune-explode{display:none!important}
.tune-part-single{appearance:none;width:100%;display:grid;grid-template-columns:1fr auto;grid-template-rows:auto auto auto;gap:4px 10px;padding:14px 14px 13px;border:1px solid rgba(21,21,21,.13);border-radius:14px;background:rgba(255,253,247,.48);text-align:left;cursor:pointer;color:#171614;transition:background .28s,border-color .28s,transform .32s var(--ease)}
.tune-part-single:hover{background:rgba(255,253,247,.9);border-color:rgba(21,21,21,.3);transform:translateY(-1px)}
.tune-part-single em{font:7px/1 Consolas,monospace;font-style:normal;letter-spacing:.18em;color:#9b9385}
.tune-part-single b{font:600 14px/1.2 "Microsoft YaHei",sans-serif;letter-spacing:.01em}
.tune-part-single small{grid-column:1/-1;font:7.5px/1.4 Consolas,monospace;letter-spacing:.05em;color:#8a8275}
.tune-part-single .arr{grid-column:2;grid-row:1/3;font:14px/1 Consolas,monospace;color:#a23b2f;align-self:center}
.tune-part-single.is-open{background:#171614;color:#f6f4ee;border-color:#171614}
.tune-part-single.is-open small,.tune-part-single.is-open em{color:#b7afa2}
.tune-guitar-note{margin:9px 2px 2px;font:8px/1.65 Consolas,monospace;letter-spacing:.05em;color:#8a8275}
.tune-side{background:rgba(247,245,239,.68);backdrop-filter:blur(10px) saturate(1.02);-webkit-backdrop-filter:blur(10px) saturate(1.02);box-shadow:0 18px 44px rgba(37,32,24,.07),inset 0 0 0 1px rgba(21,21,21,.06)}
.tune-play::after{content:"";position:absolute;inset:-5px;border-radius:50%;background:conic-gradient(#a23b2f var(--track,0%),rgba(21,21,21,.12) 0);-webkit-mask:radial-gradient(farthest-side,transparent calc(100% - 1.5px),#000 0);mask:radial-gradient(farthest-side,transparent calc(100% - 1.5px),#000 0);pointer-events:none}

/* remove white halo from right, calm paper stage */
.tune-stage{background:radial-gradient(ellipse at 52% 42%,#faf8f1 0%,#f5f2ea 45%,#ece8df 100%)}
.tune-side{background:rgba(249,247,241,.92);backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:0 14px 34px rgba(37,32,24,.06),inset 0 0 0 1px rgba(21,21,21,.06)}
.tune-play::after{inset:-5px}

/* menu above stage; lighten side panel */
.tune-foot{position:relative;z-index:12}
.tune-side{background:rgba(249,247,241,.78);box-shadow:inset 0 0 0 1px rgba(21,21,21,.07);width:288px;right:24px}
@media (max-width:1050px){.tune-side{width:auto;right:auto}}

.tune-guitar-note{cursor:pointer;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;transition:color .3s}
.tune-guitar-note:hover{color:#a23b2f}

/* right rail: no white gradient, just a hairline and type on paper */
.tune-side{
  background:transparent !important;
  -webkit-backdrop-filter:none !important;
  backdrop-filter:none !important;
  box-shadow:none !important;
  border-left:1px solid rgba(21,21,21,.10) !important;
  border-radius:0 !important;
  padding:26px 6px 20px 24px !important;
}
.tune-side::before,.tune-side::after{display:none !important}
.tune-side-head{margin-bottom:12px}
.tune-part-single{background:rgba(251,250,246,.42);border-color:rgba(21,21,21,.08)}
.tune-guitar-note{color:#6f685d}
@media (max-width:1050px){
  .tune-side{border-left:0 !important;border-top:1px solid rgba(21,21,21,.10) !important;padding:18px 14px !important}
}

.tune-guitar-load{margin:8px 2px 2px;display:flex;align-items:center;gap:8px}
.tune-guitar-load button{appearance:none;border:1px solid rgba(21,21,21,.14);background:rgba(251,250,246,.42);color:#4a463f;border-radius:999px;padding:5px 11px;font:7.5px/1.2 Consolas,monospace;letter-spacing:.1em;cursor:pointer;transition:.25s}
.tune-guitar-load button:hover{background:#171614;color:#f6f4ee;border-color:#171614}


/* final: flat paper stage; no right-side white veil */
.tune-body{background:#f6f4ee !important}
.tune-stage{background:#f6f3eb !important}
.tune-stage::before,.tune-stage::after{display:none !important}
.tune-side{background:transparent !important;box-shadow:none !important;backdrop-filter:none !important;-webkit-backdrop-filter:none !important}

/* ===== mobile 9:16 tune polish ===== */
@media (max-width:820px){
  .tune-top{height:50px;padding:0 12px}
  .tune-left{padding:16px 14px 12px}
  .tune-left h1{font-size:30px;margin-top:12px;letter-spacing:-.01em}
  .tune-sub{font-size:11px;margin-top:8px;line-height:1.6}
  .tune-copy{margin-top:10px;font-size:10px;line-height:1.7}
  .tune-red{font-size:16px;margin-top:10px}
  .tune-tabs{margin-top:12px}
  .tune-stage{height:min(42vh,340px)}
  .tune-side{padding:16px 14px 20px}
  .tune-drag,.tune-stage-label{opacity:.55}
  .tune-foot{padding:9px 12px}
}
@media (max-width:430px){
  .tune-left h1{font-size:27px}
  .tune-stage{height:min(40vh,310px)}
}

/* ===== mobile 9:16 tune fix v2 ===== */
@media (max-width:820px){
  .tune-shell{grid-template-rows:50px minmax(0,1fr) auto}
  .tune-body{display:block;overflow:auto;-webkit-overflow-scrolling:touch;padding-bottom:6px}
  .tune-stage{position:relative;height:min(42vh,340px);min-height:220px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .tune-stage canvas{transform:scale(.84);transform-origin:50% 52%}
  .tune-stage-label,.tune-drag{display:none}
  .tune-explode{right:12px;bottom:12px;padding:8px 10px;font-size:8px}
  .tune-left{padding:16px 14px 10px}
  .tune-left h1{font-size:29px;margin-top:12px}
  .tune-side{margin:0 10px 14px;padding:16px 14px 20px;background:rgba(251,250,246,.96)}
  .tune-foot{background:#fbfaf6;border-top:1px solid rgba(21,21,21,.1);padding:10px 14px calc(10px + env(safe-area-inset-bottom,0px));gap:8px;box-shadow:0 -10px 26px rgba(37,32,24,.06)}
  .tune-player{width:100%}
  .tune-price{font-size:7.5px}
  .tune-hint{display:none}
}
@media (max-width:430px){
  .tune-left h1{font-size:26px}
  .tune-stage{height:min(38vh,300px)}
}

/* ===== mobile 9:16 tune sliders (touch) ===== */
@media (max-width:820px){
  .fx-row{gap:10px;padding:9px 0;align-items:center}
  .fx-row label{font-size:11.5px}
  .fx-row input[type=range]{
    height:30px;
    touch-action:none;
    -webkit-user-select:none;user-select:none;
  }
  .fx-row input[type=range]::-webkit-slider-runnable-track{height:3px}
  .fx-row input[type=range]::-webkit-slider-thumb{
    width:20px;height:20px;margin-top:-8.5px;
    box-shadow:0 1px 5px rgba(0,0,0,.22), 0 0 0 6px rgba(162,59,47,.10);
  }
  .fx-row input[type=range]::-moz-range-track{height:3px}
  .fx-row input[type=range]::-moz-range-thumb{
    width:20px;height:20px;border:0;
    box-shadow:0 1px 5px rgba(0,0,0,.22);
  }
  .tune-side{overscroll-behavior:contain;
    -webkit-overflow-scrolling:touch}
  .fx-val{font-size:10.5px}
}