/* 曲库宽屏三列紧凑布局；封面与玩法在左，歌曲信息与难度在右。 */
@media (min-width: 901px) {
  #site-dialog[data-panel=region],
  #site-dialog[data-panel=songbook] {
    width: min(1260px, calc(100vw - 64px));
    max-height: calc(100vh - 48px);max-height: calc(100dvh - 48px);
    padding: 26px 32px 28px;
  }
  .songbook-heading { margin-bottom: 16px; }
  .songbook-heading h2 { margin: 3px 0 4px !important; font-size: 28px !important; }
  .songbook-heading p { margin: 2px 0; }
  .songbook-tools { gap: 20px; padding-bottom: 14px; }
  .songbook-count { margin: 10px 0 12px; }
  .songbook-results .song-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
  .songbook-results .song-card {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 14px;
    min-height: 0;
  }
  .songbook-results .song-cover { width: 100%; aspect-ratio: 16 / 9; max-height: none; min-height: 0; }
  .songbook-results .song-details { display: flex; flex-direction: column; align-items: stretch; min-width: 0; gap: 7px; }
  .songbook-results .song-details h3 { margin: 0; font-size: 21px; line-height: 1.35; }
  .songbook-results .song-details .song-artist {
    max-height: none;
    overflow: visible;
    font-size: 13px;
    line-height: 1.65;
    white-space: normal;
    overflow-wrap: anywhere;
  }
  .songbook-results .card-actions { width: 100%; margin-top: 14px; padding-top: 12px; }
  #site-dialog[data-panel=song-detail] {
    width: min(1180px, calc(100vw - 64px));
    max-height: calc(100vh - 48px);max-height: calc(100dvh - 48px);
    padding: 25px 32px 23px;
  }
  .song-detail-heading { padding-bottom: 14px; }
  #site-dialog .song-detail-heading h2 { font-size: max(29px, min(2.8vw, 38px)); font-size: clamp(29px, 2.8vw, 38px); margin: 5px 0; }
  .song-detail-heading p { margin-top: 3px; }
  .song-detail-layout { grid-template-columns: minmax(0, 1fr) minmax(0, .95fr); grid-template-rows: auto auto; gap: 20px 34px; padding: 22px 0; align-items: start; }
  .song-detail-art { grid-column: 1; grid-row: 1; }
  .detail-staff-panel { grid-column: 2; grid-row: 1; }
  .song-mode-controls { grid-column: 1; grid-row: 2; }
  .song-detail-controls { grid-column: 2; grid-row: 2; }
  .detail-cover { max-height: min(31vh, 310px); }
  .detail-staff { margin: 18px 0 0; font-size: max(16px, min(1.2vw, 19px)); font-size: clamp(16px, 1.2vw, 19px); line-height: 1.8; }
  .detail-chart-heading { margin-bottom: 16px; }
  .detail-footer { padding-top: 16px; }
}
.detail-staff { color: var(--rt-muted); white-space: pre-line; overflow-wrap: anywhere; }
.detail-staff-panel h3 { display: flex; align-items: center; gap: 10px; margin: 0; font-size: 20px; }
.detail-staff-panel h3::before { content: '✦'; color: var(--rt-accent); font-size: 18px; }
.detail-chart-heading { display: flex; align-items: baseline; justify-content: flex-start; gap: 16px; margin-bottom: 24px; }
.detail-chart-heading h3 { display: flex; align-items: center; gap: 10px; margin: 0; font-size: 20px; white-space: nowrap; }
.detail-chart-heading h3::before { content: '✦'; color: var(--rt-accent); font-size: 18px; }
.detail-chart-heading small { color: var(--rt-muted); font-size: 12px; text-align: left; }
.song-mode-controls h3 { display: flex; align-items: center; gap: 10px; margin: 0 0 16px; font-size: 20px; }
.song-mode-controls h3::before { content: '✦'; color: var(--rt-accent); font-size: 18px; }
.play-mode-tabs { display: flex; flex-wrap: wrap; gap: 12px; }
.play-mode-tabs button { min-width: 160px; min-height: 58px; padding: 10px 24px; border: 1px solid rgba(182,194,187,0.50196); border: 1px solid #b6c2bb80; border-radius: 8px; background: rgba(32,61,66,0.70196); background: #203d42b3; color: #e6e8dc; font-size: 17px; font-weight: 700; cursor: pointer; }
.play-mode-tabs button[aria-selected=true] { background: #eee6d2; border-color: #d2b982; color: #304354; box-shadow: inset 0 0 0 3px #eee6d2, inset 0 0 0 4px #d2b982; }
.play-mode-tabs button:focus-visible { outline: 3px solid #e6c88d; outline-offset: 3px; }
.song-detail-controls .difficulty-options { display: grid; grid-template-columns: repeat(2, minmax(0, 160px)); grid-gap: 12px; gap: 12px; min-width: 0; }
.song-detail-controls .difficulty-option { width: 100%; max-width: 160px; min-width: 0; gap: 0; }
.song-detail-layout > section { min-width: 0; }
.song-detail-controls .difficulty-seal { width: 100%; height: 58px; border-radius: 8px; font-size: 18px; font-weight: 700; }
.song-detail-controls .difficulty-seal::after { top: 5px; right: 5px; bottom: 5px; left: 5px; border-radius: 5px; }
.song-detail-controls .difficulty-option input:checked + .difficulty-seal { box-shadow: inset 0 0 0 3px #eee6d2, inset 0 0 0 4px #cbb17c; }
@media (max-width: 900px) {
  .songbook-results .song-grid { grid-template-columns: minmax(0, 1fr); }
  .song-detail-layout { grid-template-columns: minmax(0, 1fr); }
  .detail-staff { margin: 14px 0 0; font-size: 12px; line-height: 1.65; }
  .song-detail-controls .difficulty-option { min-width: 0; }
}
@media (max-width: 680px) {
  .detail-chart-heading { margin-bottom: 18px; }
  .detail-chart-heading h3 { font-size: 18px; }
  .detail-chart-heading small { font-size: 11px; }
  .song-mode-controls h3 { font-size: 18px; }
  .play-mode-tabs button { min-height: 50px; font-size: 15px; }
  .song-detail-controls .difficulty-seal { height: 50px; font-size: 15px; }
}
[data-chart-preview][hidden]{display:none!important}
.songbook-results .song-card{width:100%;min-width:0;box-sizing:border-box;display:flex;flex-direction:column;align-items:stretch}
.songbook-results .song-details{width:100%;min-width:0;display:flex;flex-direction:column;align-items:stretch}
.songbook-results .card-actions{display:grid;grid-template-columns:minmax(0,1fr) 46px;align-items:center;width:100%}
.songbook-results .card-actions .primary{min-width:0;width:100%;padding-left:10px;padding-right:10px;gap:6px;font-size:14px}
.songbook-results .card-actions .favorite{width:46px;height:46px;padding:0}
.detail-video-setting{display:flex;flex-direction:column;align-items:flex-start;gap:8px;margin-top:20px}
.detail-video-setting button{font:inherit;font-size:14px;min-height:42px;padding:8px 16px;border:1px solid var(--rt-line);border-radius:22px;background:var(--rt-surface-soft);color:var(--rt-text);cursor:pointer}
.detail-video-setting button[aria-checked=true]{border-color:var(--rt-accent)}
.detail-video-setting small{color:var(--rt-muted);font-size:12px;line-height:1.5}
.songbook-results .song-grid{align-items:stretch}
.songbook-results .song-card{height:100%}
.songbook-results .song-cover{flex-shrink:0}
.songbook-results .song-details{flex:1}
.songbook-results .song-details .song-artist{margin-bottom:16px;max-height:none;overflow:visible;white-space:normal;overflow-wrap:anywhere}
.songbook-results .card-actions{margin-top:auto;min-height:62px}
.songbook-results .song-cover>.song-cross-region{position:absolute;z-index:3;top:10px;left:10px;max-width:calc(100% - 20px);padding:6px 10px;border:1px solid rgba(220,200,148,0.6);border:1px solid #dcc89499;border-radius:4px;background:rgba(32,59,78,0.9098);background:#203b4ee8;color:#fff0ca;font-size:12px;font-weight:600;line-height:1.4;text-align:left;box-shadow:0 2px 8px rgba(16,35,54,0.2);box-shadow:0 2px 8px #10233633}

@media(min-width:901px){
  .songbook-results .card-actions{grid-template-columns:minmax(0,1fr) 42px;gap:8px;min-height:58px;padding-top:12px}
  .songbook-results .card-actions .primary{min-height:44px;font-size:13px;padding:8px}
  .songbook-results .card-actions .favorite{width:42px;height:44px;min-height:44px}
}
@media(min-width:681px) and (max-width:900px){.songbook-results .song-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* 已上线曲目无需批次角标；跨地区与待上线状态继续显示。 */
.song-card.available .song-cover>small:not(.song-cross-region){display:none}
.site-nav-shell{position:relative;min-width:0;max-width:75%;flex:0 1 auto}
.site-nav-shell .site-nav{max-width:none;width:100%;overflow-x:auto;overflow-y:hidden;flex-wrap:nowrap;-webkit-overflow-scrolling:touch}
.site-nav-overflow{position:absolute;right:0;top:0;bottom:0;width:32px;min-height:0;padding:0;border:0;border-radius:0;background:linear-gradient(90deg,transparent,#203647 40%);color:#f2d18d;cursor:pointer;display:flex;align-items:center;justify-content:center}
.site-nav-overflow[hidden]{display:none}
.site-nav-overflow.is-previous{left:0;right:auto;background:linear-gradient(270deg,transparent,#203647 40%)}
.site-nav-overflow.is-previous svg path{transform:rotate(180deg);transform-origin:12px 12px}
.site-nav-shell .site-nav,.site-nav-shell .site-nav a,.site-nav-shell .site-nav button{cursor:-webkit-grab;cursor:grab;user-select:none;-webkit-user-drag:none}
.site-nav-shell .site-nav.is-dragging,.site-nav-shell .site-nav.is-dragging a,.site-nav-shell .site-nav.is-dragging button{cursor:-webkit-grabbing;cursor:grabbing}
.site-nav-overflow svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;animation:nav-overflow-breathe 1.8s ease-in-out infinite}
@keyframes nav-overflow-breathe{0%,100%{opacity:.5;transform:translateX(-2px)}50%{opacity:1;transform:translateX(2px)}}
@media(prefers-reduced-motion:reduce){.site-nav-overflow svg{animation:none}}
@media(max-width:680px){.site-nav-shell{max-width:none;flex:1 1 0}.site-nav-shell .site-nav{justify-content:flex-start}}

/* 试听与开始演奏在窄屏保持相同按钮宽度。 */
.detail-footer [data-song-audition]{min-width:150px;min-height:46px}
.detail-audition-status{font-size:12px;color:var(--rt-muted);margin:12px 0 0;line-height:1.6}
@media(max-width:680px){.detail-footer [data-song-audition]{min-width:0;flex:1;padding:10px 12px;font-size:15px}}

/* 首屏紧凑选歌：原曲入口跟随标题，试听状态紧贴难度。 */
.song-detail-heading{position:relative;padding-right:190px;padding-bottom:14px}
.song-detail-heading .detail-original{position:absolute;right:44px;top:4px;padding:9px 16px;white-space:nowrap;font-size:13px;border-radius:24px}
.detail-staff{display:flex;gap:18px;white-space:normal;margin:12px 0 0;font-size:14px;line-height:1.6}
.staff-column{flex:1;min-width:0}.detail-staff .staff-row{margin:0 0 5px;overflow-wrap:break-word}
.song-detail-layout{gap:18px 24px;padding:18px 0}
.detail-chart-heading{margin-bottom:14px}.song-mode-controls h3{margin-bottom:14px}
.detail-preferences{grid-column:1/-1}
.detail-preferences .detail-video-setting{flex-direction:row;align-items:center;flex-wrap:wrap;gap:6px 10px;margin-top:0}
.detail-video-setting button{flex-shrink:0}.detail-video-setting [data-video-auto-hint]{flex-basis:100%}
.detail-audition-status{margin-top:8px;font-size:12px}
.detail-footer{position:relative}.detail-footer [data-song-audition],.detail-footer [data-chart-play]{white-space:nowrap}
.detail-footer .detail-scroll-hint{position:absolute;right:0;bottom:calc(100% + 3px);padding:4px 10px;min-height:28px;border:1px solid var(--rt-line);border-radius:14px;background:var(--rt-surface-soft);color:var(--rt-text);font-size:11px}
@media(min-width:901px){.song-detail-layout{grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:16px 24px}.detail-cover{max-height:230px}.detail-preferences{grid-row:3;margin-top:0}}
@media(max-width:1100px){.detail-staff.has-columns{display:block}}
@media(max-width:680px){.song-detail-heading{padding-right:32px}.song-detail-heading .detail-original{position:static;display:inline-flex;margin-top:8px;padding:6px 12px;min-height:36px}.song-detail-layout{gap:16px;padding:14px 0}.song-detail-art .detail-cover{max-height:145px}.detail-staff{font-size:12px;line-height:1.45;margin-top:8px}.detail-staff .staff-row{margin-bottom:3px}.detail-staff-panel h3,.song-mode-controls h3,.detail-chart-heading h3{font-size:16px}.song-mode-controls h3,.detail-chart-heading{margin-bottom:10px}.play-mode-tabs button{min-width:0;flex:0 1 145px;padding:8px 12px;min-height:44px}.song-detail-controls .difficulty-seal{height:44px}.detail-preferences .detail-video-setting small{font-size:10px}.detail-footer [data-song-audition],.detail-footer [data-chart-play]{font-size:13px;padding:10px 8px}.detail-chart-heading{flex-wrap:wrap;gap:5px 10px}}

/* 视频设置靠近上一行玩法按钮，收回试听状态造成的多余空隙。 */
@media(min-width:901px){.detail-preferences{margin-top:-20px}}

/* 自动演示与返回并列；手机分两行，保留足够点击区域。 */
.detail-footer.has-demo .detail-back{margin-right:0}
.detail-footer [data-song-demo]{margin-right:auto;white-space:nowrap;min-width:110px}
.game-demo-badge{position:absolute;left:50%;top:86px;transform:translateX(-50%);z-index:8;padding:4px 12px;border:1px solid rgba(215,194,138,0.50196);border:1px solid #d7c28a80;border-radius:14px;background:rgba(24,55,66,0.8);background:#183742cc;color:#f5e8ba;font-size:12px;pointer-events:none}
@media(max-width:680px){.detail-footer.has-demo{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-gap:8px;gap:8px}.detail-footer.has-demo .detail-back,.detail-footer.has-demo [data-song-demo],.detail-footer.has-demo [data-song-audition],.detail-footer.has-demo [data-chart-play]{min-width:0;width:100%;margin:0;font-size:13px;padding:10px 8px;min-height:42px}.detail-footer.has-demo :is(.detail-back,[data-song-demo],[data-song-audition],[data-chart-play]){min-width:0;width:100%;margin:0;font-size:13px;padding:10px 8px;min-height:42px}}

@media(max-width:680px){#site-dialog .detail-footer.has-demo .detail-back{display:inline-flex;align-items:center;justify-content:center}}

/* 新活动角标按原图比例显示，文字与原入口同风格。 */
.anniversary-entry.song-shortcut-entry img{width:100px;height:100px;object-fit:contain}
@media(max-width:680px){.anniversary-entry.song-shortcut-entry img{width:84px;height:84px}}

/* SVG只描原图透明轮廓，1.25px固定金边（用户选定B），不改图片和点击区域。 */
.map-shortcut-filters{position:absolute;width:0;height:0;overflow:hidden;pointer-events:none}