/* =========================================================
   ニセコイ｜偽恋 · 主题站 — styles-v3.css
   v3 增量扩展：音乐播放器（YouTube 官方嵌入）+ 人物详情面板
   依赖 styles.css 的 tokens（--red-brand / --ui-rule / --r-2 等）；
   本文件在 styles.css 之后加载，同优先级规则以本文件为准。
   ========================================================= */

/* ---------- 14. 音乐播放器（YouTube 官方频道嵌入） ---------- */
.music-player{margin-bottom:44px;}
.music-player__stage{
  position:relative;aspect-ratio:16/9;
  background:var(--ink-900);
  border-top:4px solid var(--red-brand);
  overflow:hidden;
}
.music-player__idle{
  position:absolute;inset:0;z-index:1;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:24px;text-align:center;color:#fff;
}
.music-player__idle::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:var(--ui-pattern) repeat;opacity:.14;pointer-events:none;
}
.music-player__disc{
  width:104px;height:104px;border-radius:50%;
  background:
    repeating-radial-gradient(circle at 50% 50%,rgba(255,255,255,.09) 0 2px,transparent 2px 7px),
    var(--red-brand);
  box-shadow:0 0 0 10px rgba(251,6,5,.16),0 18px 40px rgba(0,0,0,.45);
  position:relative;
  animation:discSpin 9s linear infinite;
}
.music-player__disc::after{
  content:"";position:absolute;left:50%;top:50%;width:32px;height:32px;
  margin:-16px 0 0 -16px;border-radius:50%;background:var(--cream-50);
}
@keyframes discSpin{to{transform:rotate(360deg);}}
.music-player__hint{font-size:15px;font-weight:700;letter-spacing:.08em;}
.music-player__note{font-size:12px;letter-spacing:.1em;color:rgba(255,255,255,.66);}
.music-player__frame{position:absolute;inset:0;width:100%;height:100%;border:0;}

/* --- v3.1 本地音频播放台 --- */
.music-player__deck{
  position:absolute;inset:0;z-index:2;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:24px;text-align:center;color:#fff;
}
.music-player__deck::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:var(--ui-pattern) repeat;opacity:.14;pointer-events:none;
}
.music-player__deck[hidden]{display:none;}
.music-player__disc--deck{width:118px;height:118px;}
.music-player__deck-title{
  margin:0;max-width:82%;
  font-family:var(--f-body);font-size:17px;font-weight:700;letter-spacing:.03em;line-height:1.5;color:#fff;
}
.music-player__audio{
  width:min(520px,88%);height:42px;margin-top:4px;
  filter:drop-shadow(0 8px 20px rgba(0,0,0,.4));
}
/* 暂停态：图标与均衡器同步 */
.music-row.is-playing.is-paused .ic-play{display:block;}
.music-row.is-playing.is-paused .ic-pause{display:none;}
.music-row.is-playing.is-paused .music-row__eq i{animation-play-state:paused;}

/* =========================================================
   v4 · 自制控制条（替换原生 audio controls）
   ========================================================= */
.music-player__deck audio{display:none;}
.music-player__deck.is-paused .music-player__disc{animation-play-state:paused;}

/* 唱片 + 进度环 */
.mp-disc-wrap{position:relative;width:132px;height:132px;display:grid;place-items:center;flex:none;}
.mp-ring{position:absolute;inset:0;width:100%;height:100%;transform:rotate(-90deg);}
.mp-ring circle{fill:none;stroke-width:3;}
.mp-ring__track{stroke:rgba(255,255,255,.16);}
.mp-ring__bar{
  stroke:var(--red-brand);stroke-linecap:round;
  stroke-dasharray:351.86;stroke-dashoffset:351.86;
  transition:stroke-dashoffset .22s linear;
}
.music-player__disc--deck{width:104px;height:104px;box-shadow:0 0 0 6px rgba(251,6,5,.14),0 14px 32px rgba(0,0,0,.45);}

/* NOW PLAYING 计数 */
.music-player__deck-count{
  margin:-4px 0 0;font-family:var(--f-latin);font-size:11px;letter-spacing:.22em;
  color:rgba(255,255,255,.58);
}

/* 传输控制按钮（斜切平行四边形 · 官方签名） */
.mp-controls{display:flex;align-items:center;gap:12px;}
.mp-btn{
  appearance:none;border:0;background:transparent;padding:0;color:#fff;
  cursor:pointer;display:grid;place-items:center;
}
.mp-btn > span{
  display:grid;place-items:center;width:52px;height:42px;
  transform:skewX(10deg);
  border:2px solid rgba(255,255,255,.45);
  transition:background .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.mp-btn > span > svg{transform:skewX(-10deg);width:20px;height:20px;fill:currentColor;}
.mp-btn:hover > span{border-color:#fff;background:rgba(255,255,255,.1);}
.mp-btn:focus-visible{outline:2px solid var(--red-brand);outline-offset:3px;}
.mp-btn--main > span{
  width:64px;height:52px;background:var(--red-brand);border-color:var(--red-brand);
  box-shadow:0 8px 22px rgba(251,6,5,.34);
}
.mp-btn--main:hover > span{background:var(--red-deep);border-color:var(--red-deep);}
.mp-btn .ic-pause{display:none;}
.music-player__deck.is-playing .mp-btn--main .ic-play{display:none;}
.music-player__deck.is-playing .mp-btn--main .ic-pause{display:block;}

/* 进度条 + 时间 + 音量 */
.mp-progress{display:flex;align-items:center;gap:10px;width:min(560px,92%);}
.mp-time{
  flex:none;min-width:42px;font-family:var(--f-latin);font-size:12px;letter-spacing:.06em;
  color:rgba(255,255,255,.78);font-variant-numeric:tabular-nums;
}
.mp-bar{
  position:relative;flex:1 1 auto;height:22px;display:flex;align-items:center;
  cursor:pointer;touch-action:none;
}
.mp-bar::before{
  content:"";position:absolute;left:0;right:0;height:4px;border-radius:999px;
  background:rgba(255,255,255,.22);
}
.mp-bar__fill{
  position:absolute;left:0;width:0;height:4px;border-radius:999px;background:var(--red-brand);
}
.mp-bar__thumb{
  position:absolute;left:0;width:11px;height:11px;background:#fff;
  transform:translateX(-50%) rotate(45deg);
  transition:transform .18s var(--ease);
  box-shadow:0 2px 8px rgba(0,0,0,.5);
}
.mp-bar:hover .mp-bar__thumb{transform:translateX(-50%) rotate(45deg) scale(1.3);}
.mp-bar:focus-visible{outline:2px solid var(--red-brand);outline-offset:3px;border-radius:4px;}
.mp-vol{
  appearance:none;border:0;background:transparent;padding:6px;cursor:pointer;
  color:rgba(255,255,255,.82);display:grid;place-items:center;flex:none;
}
.mp-vol:hover{color:#fff;}
.mp-vol:focus-visible{outline:2px solid var(--red-brand);outline-offset:2px;}
.mp-vol svg{width:18px;height:18px;fill:currentColor;}
.mp-vol .ic-muted{display:none;}
.mp-vol.is-muted .ic-vol{display:none;}
.mp-vol.is-muted .ic-muted{display:block;}
.mp-vol-slider{
  width:0;opacity:0;flex:none;height:18px;cursor:pointer;
  accent-color:var(--red-brand);
  transition:width .24s var(--ease),opacity .24s var(--ease);
}
.mp-progress:hover .mp-vol-slider,
.mp-vol:focus-visible ~ .mp-vol-slider,
.mp-vol-slider:focus-visible{width:78px;opacity:1;}

/* 移动端：纵向紧凑排布 */
@media (max-width:767px){
  .music-player__stage{aspect-ratio:auto;min-height:352px;}
  .music-player__deck{gap:10px;padding:18px 14px;}
  .mp-disc-wrap{width:104px;height:104px;}
  .music-player__disc--deck{width:84px;height:84px;}
  .music-player__deck-title{font-size:15px;}
  .mp-btn > span{width:56px;height:46px;}
  .mp-btn--main > span{width:68px;height:54px;}
  .mp-progress{flex-wrap:wrap;justify-content:center;gap:8px 10px;}
  .mp-bar{order:3;flex:1 0 100%;height:26px;}
  .mp-vol-slider{width:70px;opacity:1;}
}
@media (prefers-reduced-motion: reduce){
  .mp-ring__bar{transition:none;}
  .music-player__disc{animation:none;}
  .mp-btn > span,.mp-bar__thumb,.mp-vol-slider{transition:none;}
}

/* =========================================================
   v5 · OP / ED 动画画面层（随曲目自动切换）
   ========================================================= */
.mp-video{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;background:#0a0a0e;
  opacity:0;transition:opacity .5s var(--ease);
}
.music-player__deck.has-video .mp-video{opacity:1;}
.mp-scrim{
  position:absolute;inset:0;pointer-events:none;opacity:0;
  background:linear-gradient(180deg,
    rgba(8,8,12,.10) 0%,
    rgba(8,8,12,.30) 42%,
    rgba(8,8,12,.58) 68%,
    rgba(8,8,12,.86) 100%);
  transition:opacity .5s var(--ease);
}
.music-player__deck.has-video .mp-scrim{opacity:1;}

/* 内容层浮在视频之上 */
.mp-video,.mp-scrim{z-index:0;}
.music-player__deck > .mp-disc-wrap,
.music-player__deck > .music-player__deck-title,
.music-player__deck > .music-player__deck-count,
.music-player__deck > .mp-controls,
.music-player__deck > .mp-progress{z-index:1;}

/* 有动画画面时：隐藏唱片，控件沉到底部（如音乐播放器） */
.music-player__deck.has-video{justify-content:flex-end;gap:8px;padding-bottom:20px;}
.music-player__deck.has-video .mp-disc-wrap{display:none;}
.music-player__deck.has-video::after{opacity:0;transition:opacity .4s var(--ease);}
.music-player__deck.has-video .music-player__deck-title{
  font-size:18px;text-shadow:0 2px 16px rgba(0,0,0,.65);
}
.music-player__deck.has-video .music-player__deck-count{text-shadow:0 1px 10px rgba(0,0,0,.7);}
.music-player__deck.has-video .mp-controls{margin-bottom:2px;}

@media (max-width:767px){
  .music-player__deck.has-video{padding-bottom:14px;gap:6px;}
  .music-player__deck.has-video .music-player__deck-title{font-size:15px;}
}

/* =========================================================
   v6 · 音波图相位（视频播完后的剩余歌曲段落）
   ========================================================= */
.mp-wave{
  position:absolute;inset:0;width:100%;height:100%;
  opacity:0;transition:opacity .5s var(--ease);
  background:
    radial-gradient(120% 85% at 50% 48%, rgba(251,6,5,.20) 0%, rgba(10,10,14,0) 62%),
    #0a0a0e;
}
.music-player__deck.is-wave .mp-wave{opacity:1;}
.music-player__deck.is-wave{justify-content:flex-end;gap:8px;padding-bottom:20px;}
.music-player__deck.is-wave .mp-disc-wrap{display:none;}
.music-player__deck.is-wave::after{opacity:0;transition:opacity .4s var(--ease);}
.music-player__deck.is-wave .music-player__deck-title{
  font-size:18px;text-shadow:0 2px 16px rgba(0,0,0,.8);
}
.music-player__deck.is-wave .music-player__deck-count{text-shadow:0 1px 10px rgba(0,0,0,.8);}
.music-player__deck.has-video .mp-scrim,
.music-player__deck.is-wave .mp-scrim{opacity:1;}

@media (max-width:767px){
  .music-player__deck.is-wave{padding-bottom:14px;gap:6px;}
  .music-player__deck.is-wave .music-player__deck-title{font-size:15px;}
}
@media (prefers-reduced-motion: reduce){
  .mp-wave{transition:none;}
}

.music-player__meta{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:13px 18px;background:var(--cream-50);
  border:1px solid var(--line);border-top:0;
}
.music-player__now{display:flex;align-items:center;gap:12px;flex-wrap:wrap;min-width:0;}
.music-player__tag{
  flex:0 0 auto;padding:3px 11px;background:var(--red-brand);color:#fff;
  font-family:var(--f-latin);font-size:11px;letter-spacing:.2em;line-height:1.6;
}
.music-player__tag--alt{background:var(--blue-500);}
.music-player__tag--pv{background:var(--ink-900);}
.music-player__now strong{font-family:var(--f-body);font-size:15px;color:var(--ink-900);}
.music-player__now em{font-style:normal;font-size:12px;letter-spacing:.06em;color:var(--ink-600);}
.music-player__link{
  flex:0 0 auto;font-size:12.5px;letter-spacing:.08em;color:var(--red-brand);
  text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:2px;
  transition:color .3s var(--ease);
}
.music-player__link:hover{color:var(--red-deep);}

/* 播放键（启用）+ 正在播放状态 + 均衡器 */
.music-play .ic-pause{display:none;}
.music-row.is-playing{position:relative;background:rgba(251,6,5,.07);}
.music-row.is-playing::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--red-brand);
}
.music-row.is-playing .music-play{
  background:var(--red-brand);border-color:var(--red-brand);color:#fff;
}
.music-row.is-playing .music-play .ic-play{display:none;}
.music-row.is-playing .music-play .ic-pause{display:block;}
.music-row.is-playing .music-row__num{display:none;}
.music-row__eq{display:none;align-items:flex-end;gap:2px;height:14px;}
.music-row.is-playing .music-row__eq{display:inline-flex;}
.music-row__eq i{
  display:block;width:3px;background:var(--red-brand);transform-origin:bottom;
  animation:eqBar .9s ease-in-out infinite;
}
.music-row__eq i:nth-child(1){height:6px;animation-delay:-.2s;}
.music-row__eq i:nth-child(2){height:13px;animation-delay:-.55s;}
.music-row__eq i:nth-child(3){height:9px;animation-delay:-.35s;}
@keyframes eqBar{0%,100%{transform:scaleY(.42);}50%{transform:scaleY(1);}}

/* 说明性条目（第一季 ED · 不可播放） */
.music-row--note{background:rgba(35,32,43,.035);border-bottom:0;}
.music-row--note:hover{background:rgba(35,32,43,.035);transform:none;}
.music-row--note .music-row__main{grid-column:3 / -1;}
.music-row--note .music-row__main em{color:var(--ink-600);font-size:12px;line-height:1.9;}
.music-row--note .skew-tag{background:var(--ink-600);}

/* ARCHIVE / 合集分组（第三组 · 全宽） */
.music-group--archive{margin-top:44px;padding-top:44px;border-top:1px solid var(--line);}
.music-list--duo{display:grid;grid-template-columns:1fr 1fr;gap:0 44px;}

/* ---------- 15. 人物详情面板 ---------- */
.chara-modal{position:fixed;inset:0;z-index:110;display:grid;place-items:center;padding:32px;}
.chara-modal__backdrop{
  position:absolute;inset:0;background:rgba(24,20,30,.86);
  animation:fadeIn .35s var(--ease) both;
}
.chara-modal__body{
  position:relative;z-index:1;
  width:min(1080px,92vw);height:min(92vh,860px);
  display:grid;grid-template-columns:38% 62%;grid-template-rows:minmax(0,1fr);
  background:var(--paper);border-radius:var(--r-2);
  box-shadow:0 40px 90px rgba(0,0,0,.5);
  overflow:hidden;
  animation:slideIn .5s var(--ease) both;
}
.chara-modal__body::before{
  content:"";position:absolute;left:0;right:0;top:0;height:4px;z-index:3;
  background:var(--ui-rule) repeat-x;
}
.chara-modal__close{
  position:absolute;top:16px;right:18px;z-index:4;
  width:52px;height:52px;padding:0;cursor:pointer;
  transition:transform .3s var(--ease);
}
.chara-modal__close img{width:100%;height:100%;object-fit:contain;}
.chara-modal__close:hover{transform:rotate(90deg) scale(1.06);}

.chara-modal__visual{
  position:relative;min-height:0;display:flex;align-items:flex-end;justify-content:center;
  background:var(--cream-50);overflow:hidden;
}
.chara-modal__visual img{
  width:auto;max-width:100%;max-height:100%;object-fit:contain;
  filter:drop-shadow(0 20px 30px rgba(35,32,43,.18));
  animation:fadeIn .8s var(--ease) both;
}
@supports (color:color-mix(in oklab,red 12%,white)){
  .chara-modal__visual{
    background:linear-gradient(180deg,
      color-mix(in oklab,var(--theme,#FFD447) 20%,#FFFFFF) 0%,
      color-mix(in oklab,var(--theme,#FFD447) 6%,#FFFFFF) 46%,
      var(--paper) 100%);
  }
}

.chara-modal__info{padding:42px 46px 36px;overflow-y:auto;min-height:0;}
.chara-modal__eyebrow{
  display:flex;align-items:center;gap:9px;
  font-family:var(--f-latin);font-size:11px;letter-spacing:.3em;
  color:var(--red-brand);text-transform:uppercase;margin-bottom:12px;
}
.chara-modal__name{
  font-family:var(--f-display);font-size:clamp(26px,2.6vw,38px);
  line-height:1.3;color:var(--ink-900);
}
.chara-modal__romaji{
  font-family:var(--f-latin);font-size:12px;letter-spacing:.3em;
  color:var(--ink-600);margin-top:8px;
}
.chara-modal__tag{font-size:12.5px;letter-spacing:.12em;color:var(--red-brand);margin-top:6px;}
.chara-modal__facts{
  display:grid;grid-template-columns:1fr 1fr;gap:0 24px;
  margin-top:20px;border-top:1px solid var(--line);
}
.chara-modal__facts > div{
  display:flex;gap:10px;padding:8px 0;
  border-bottom:1px solid var(--line);font-size:12.5px;line-height:1.6;
}
.chara-modal__facts dt{flex:0 0 44px;color:var(--ink-600);letter-spacing:.08em;}
.chara-modal__facts dd{color:var(--ink-900);}
.chara-modal__traits{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.chara-modal__traits li{
  display:inline-block;padding:4px 12px;background:var(--paper);
  border:1.5px solid var(--ink-600);color:var(--ink-900);
  font-size:12px;letter-spacing:.1em;transform:skewX(-10deg);
}
.chara-modal__traits li span{display:inline-block;transform:skewX(10deg);}
@supports (color:color-mix(in oklab,red 50%,black)){
  .chara-modal__traits li{border-color:color-mix(in oklab,var(--theme,#FFD447) 52%,#23202B);}
}
.chara-modal__label{
  font-family:var(--f-latin);font-size:11px;letter-spacing:.34em;
  color:var(--red-brand);margin-bottom:10px;
}
.chara-modal__story{margin-top:22px;}
.chara-modal__story > p:last-child{font-size:13.5px;line-height:1.85;color:var(--ink-600);}
.chara-modal__scenes{margin-top:22px;}
.chara-modal__scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;max-width:520px;}
.chara-modal__scene{
  position:relative;display:block;padding:0;cursor:pointer;
  border:2px solid var(--paper);background:var(--ink-900);
  overflow:hidden;aspect-ratio:300/169;
  transition:border-color .3s var(--ease);
}
.chara-modal__scene img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.chara-modal__scene span{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px 10px 7px;
  background:linear-gradient(180deg,rgba(251,6,5,0) 0%,rgba(251,6,5,.92) 62%);
  color:#fff;font-size:11px;line-height:1.5;letter-spacing:.04em;text-align:left;
}
.chara-modal__scene:hover,.chara-modal__scene:focus-visible{border-color:var(--red-brand);}
.chara-modal__scene:hover img,.chara-modal__scene:focus-visible img{transform:scale(1.08);}

/* ---------- 16. v3 响应式 ---------- */
@media (max-width:1319px){
  .chara-modal__info{padding:38px 36px 34px;}
}
@media (max-width:1023px){
  .music-list--duo{grid-template-columns:1fr;}
  .music-group--archive{margin-top:36px;padding-top:36px;}
  .chara-modal{padding:20px;}
  .chara-modal__body{grid-template-columns:1fr;grid-template-rows:300px minmax(0,1fr);height:92vh;}
  .chara-modal__visual{height:auto;}
  .chara-modal__visual img{max-height:300px;}
  .chara-modal__info{padding:30px 26px 32px;overflow-y:auto;min-height:0;}
}
@media (max-width:767px){
  .music-play{min-height:42px;width:42px;padding:0;}
  .music-play svg{width:16px;height:16px;}
  .music-player__meta{flex-direction:column;align-items:flex-start;gap:8px;}
  .music-player__disc{width:82px;height:82px;}
  .chara-modal{padding:12px;}
  .chara-modal__body{width:100%;height:94vh;border-radius:6px;grid-template-rows:240px minmax(0,1fr);}
  .chara-modal__visual{height:auto;}
  .chara-modal__visual img{max-height:240px;}
  .chara-modal__facts{grid-template-columns:1fr;gap:0;}
  .chara-modal__info{padding:24px 18px 28px;}
  .chara-modal__close{top:10px;right:12px;width:44px;height:44px;}
  .chara-modal__scene span{font-size:10.5px;padding:14px 8px 6px;}
}

/* =========================================================
   v8 · 开场入场动画（每次会话一次 · 5.2s 五幕）
   纯 CSS 时间轴；网点用 radial-gradient 平铺；图标为内联 SVG；
   只动 transform / opacity；不改动任何既有区块。
   ========================================================= */
.intro{
  position:fixed;inset:0;z-index:900;
  background:#FDFDFD;color:var(--ink-900);
  overflow:hidden;isolation:isolate;
}
html.intro-seen .intro{display:none;}
.intro.is-done{opacity:0;pointer-events:none;transition:opacity .35s var(--ease);}
.intro.is-gone{display:none;}
/* 动画期间锁滚动：body 脱离文档流（不改动任何既有 overflow 规则），
   html 预留滚动条槽位 —— 交接前后布局宽度一致，不产生跳动 */
html.intro-lock{scrollbar-gutter:stable;}
html.intro-lock body{position:fixed;left:0;right:0;top:0;width:100%;}
.intro-defs{position:absolute;width:0;height:0;overflow:hidden;}
.intro-scene{position:absolute;inset:0;pointer-events:none;}

/* ---- 幕 0 · 心跳起搏（0 – 0.9s） ---- */
.intro-dots{
  position:absolute;inset:0;opacity:1;
  animation:introDots 2.2s var(--ease) both, introDotsOut .5s linear 3.46s forwards;
}
.intro-dots__pat{
  position:absolute;inset:0;opacity:.12;
  background-image:radial-gradient(circle,rgba(251,6,5,.9) 1.4px,transparent 1.5px);
  background-size:12px 12px;
}
@keyframes introDots{
  0%{opacity:0;transform:scale(.34);}
  41%{opacity:1;transform:scale(1);}
  100%{opacity:1;transform:scale(1);}
}
@keyframes introDotsOut{0%{opacity:1;}100%{opacity:0;}}
.intro-heart{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  color:var(--red-accent);
  animation:introHeartbeat 1.16s var(--ease) both;
}
.intro-heart svg{display:block;width:clamp(118px,13vw,182px);height:auto;}
@keyframes introHeartbeat{
  0%{opacity:0;transform:translate(-50%,-50%) scale(.9);}
  8%{opacity:1;transform:translate(-50%,-50%) scale(1);}
  24%{transform:translate(-50%,-50%) scale(1.08);}
  35%{transform:translate(-50%,-50%) scale(1);}
  49%{transform:translate(-50%,-50%) scale(1.12);}
  62%{transform:translate(-50%,-50%) scale(1);}
  74%{opacity:1;transform:translate(-50%,-50%) scale(1);}
  100%{opacity:0;transform:translate(-50%,-50%) scale(1.04);}
}

/* ---- 幕 1 · 图标阵列（0.9 – 2.0s，4×3） ---- */
.intro-scene--grid{display:grid;place-items:center;}
.intro-grid{
  display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(3,1fr);
  place-items:center;gap:min(2.6vh,22px);
  width:min(78vw,980px);height:min(62vh,540px);
  animation:introGridOut .34s var(--ease) 1.7s both;
}
@keyframes introGridOut{0%{opacity:1;transform:scale(1);}100%{opacity:0;transform:scale(.9);}}
.intro-ico{
  display:block;line-height:0;opacity:0;
  animation:introIcoIn .3s cubic-bezier(.2,1.35,.36,1) both;
  animation-delay:calc(.9s + var(--i,0) * .046s);
}
.intro-ico svg{display:block;width:clamp(34px,4.2vw,58px);height:auto;}
.intro-ico--g{color:#8AE18F;}
.intro-ico--y{color:#9A8D2E;}
.intro-ico--p{color:#FDA8C5;}
.intro-ico--r{color:var(--red-accent);}
@keyframes introIcoIn{
  0%{opacity:0;transform:translate(var(--fx,0),var(--fy,0)) rotate(var(--fr,0deg)) scale(.42);}
  68%{opacity:1;transform:translate(0,0) rotate(0) scale(1.08);}
  100%{opacity:1;transform:translate(0,0) rotate(0) scale(1);}
}

/* ---- 幕 2 · 点击驱动的角色展示（一次一位；点击推进，见 BRIEF-v9 §三） ---- */
.intro-scene--band{overflow:hidden;transition:opacity .22s linear;}
.intro-scene--band.is-out{opacity:0;}
.intro-band{
  position:absolute;top:-34%;bottom:-34%;left:0;width:42%;
  background:var(--red-accent);
  transform:skewX(-12deg) translateX(-180%);
  opacity:0;
}
.intro-scene--band.is-swapping .intro-band{animation:introBandSweep .28s cubic-bezier(.6,.02,.22,1) both;}
@keyframes introBandSweep{
  0%{opacity:0;transform:skewX(-12deg) translateX(-160%);}
  12%{opacity:1;}
  88%{opacity:1;}
  100%{opacity:0;transform:skewX(-12deg) translateX(300%);}
}
.intro-beat{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .12s linear;}
.intro-beat.is-on{opacity:1;pointer-events:auto;}
/* 切换入场 ≈0.28s：色带划过 + 立绘/姓名滑入 */
.intro-beat.is-on .intro-beat__slab{animation:introSwSlab .28s var(--ease) both;}
.intro-beat.is-on .intro-beat__art{animation:introSwArt .28s var(--ease) both;}
.intro-beat.is-on .intro-beat__meta{animation:introSwMeta .28s var(--ease) both;}
.intro-beat.is-on .intro-beat__icon{animation:introSwIcon .3s cubic-bezier(.2,1.5,.36,1) both;}
@keyframes introSwSlab{0%{opacity:0;transform:skewX(-12deg) translateX(-10%);}100%{opacity:1;transform:skewX(-12deg) translateX(0);}}
@keyframes introSwArt{0%{opacity:0;transform:translateX(52px) scale(.985);}100%{opacity:1;transform:translateX(0) scale(1);}}
@keyframes introSwMeta{0%{opacity:0;transform:translate(-44px,var(--my,-50%));}100%{opacity:1;transform:translate(0,var(--my,-50%));}}
@keyframes introSwIcon{0%{opacity:0;transform:scale(.4) rotate(-16deg);}60%{opacity:1;transform:scale(1.18) rotate(4deg);}100%{opacity:1;transform:scale(1) rotate(0);}}
/* A1 · 视差层：--px / --py 由 JS 写入，各层深度不同 */
.intro-par{
  position:absolute;inset:0;display:block;will-change:transform;
  transform:translate3d(calc(var(--px,0) * var(--pd,0) * 1px),calc(var(--py,0) * var(--pd,0) * 1px),0);
}
.intro-par--slab{--pd:6;}
.intro-par--art{--pd:14;}
.intro-par--meta{--pd:22;}

.intro-beat__slab{
  position:absolute;top:-14%;bottom:-14%;left:-8%;width:66%;
  background:var(--c,#8AE18F);
  transform:skewX(-12deg);
  transition:filter .3s var(--ease);
}
.intro-beat__art{
  position:absolute;right:3%;bottom:0;height:78%;
  display:flex;align-items:flex-end;
}
.intro-beat__art img{
  height:100%;width:auto;max-width:none;object-fit:contain;
  filter:drop-shadow(0 22px 40px rgba(35,32,43,.22));
  transform:scale(var(--sc,1));
  transition:transform .3s var(--ease);
}
.intro-beat__meta{
  position:absolute;left:9%;top:50%;width:56%;
  --my:-50%;
  transform:translateY(var(--my));
}
.intro-beat__icon{display:block;color:var(--red-accent);}
.intro-beat__icon svg{width:clamp(22px,2.4vw,32px);height:auto;fill:currentColor;}
.intro-beat__name{
  display:block;font-family:var(--f-display);font-weight:400;
  font-size:clamp(30px,4.4vw,62px);line-height:1.3;
  color:var(--ink-900);margin-top:14px;
  transition:color .3s var(--ease);
}
.intro-beat__romaji{
  display:block;font-family:var(--f-latin);font-size:clamp(11px,1.05vw,14px);
  letter-spacing:.34em;color:rgba(35,32,43,.7);margin-top:12px;
  transition:color .3s var(--ease);
}
/* A2 · 悬停当前女主：立绘微放大 + 姓名高亮 + 色块加深（仅真正的指针设备） */
@media (hover:hover) and (pointer:fine){
  .intro-beat.is-on:hover .intro-beat__art img{--sc:1.04;}
  .intro-beat.is-on:hover .intro-beat__name{
    color:var(--red-brand);
    text-decoration:underline;text-decoration-thickness:3px;text-underline-offset:6px;
  }
  .intro-beat.is-on:hover .intro-beat__slab{filter:brightness(.9);}
}
/* A3 · 进入幕④时的短暂反馈：色块闪品牌红 */
.intro-beat.is-picked .intro-beat__slab{animation:introSlabFlash .46s var(--ease) both;}
@keyframes introSlabFlash{
  0%{background:var(--c,#8AE18F);}
  32%{background:var(--red-brand);}
  100%{background:var(--c,#8AE18F);}
}

/* ---- 幕③收尾 · 四人合照选择页（BRIEF-v10） ---- */
.intro-scene--pick{display:flex;opacity:0;pointer-events:none;transition:opacity .22s linear;}
.intro.is-pick .intro-scene--pick{opacity:1;pointer-events:auto;}
.intro-pick{display:flex;flex:1;min-width:0;}
.intro-pick__col{
  position:relative;flex:1 1 0;min-width:0;
  display:flex;flex-direction:column;align-items:center;justify-content:flex-end;
  overflow:hidden;background:var(--cream-50);
  border:0;padding:0;cursor:pointer;color:var(--ink-900);
  -webkit-tap-highlight-color:transparent;
  transition:flex-grow .34s var(--ease),filter .34s var(--ease);
}
.intro-pick__col + .intro-pick__col{border-left:2px solid var(--red-brand);}
.intro-pick__col:hover{flex-grow:1.35;}
.intro-pick:hover .intro-pick__col:not(:hover){filter:brightness(.92);}
.intro-pick__col:focus-visible{outline:3px solid var(--red-accent);outline-offset:-3px;z-index:2;}
/* 斜切色带：主带 + 更淡的次级带，斜穿立绘腰部，层级在立绘之后 */
.intro-pick__band{
  position:absolute;left:0;right:0;top:22%;height:46%;z-index:0;pointer-events:none;
}
.intro-pick__band i{
  position:absolute;top:0;bottom:0;left:50%;width:58%;
  transform:translateX(-50%) skewX(-12deg);
  background:var(--c,#FFD447);opacity:.9;
  transition:transform .34s var(--ease);
}
.intro-pick__band--soft{top:16%;}
.intro-pick__band--soft i{width:66%;opacity:.18;}
.intro-pick__col:hover .intro-pick__band i{transform:translateX(-50%) skewX(-12deg) scaleX(1.2);}
/* 立绘（底部对齐 · 可轻微裁切） */
.intro-pick__art{
  position:relative;z-index:1;flex:1 1 0;min-height:0;width:100%;
  pointer-events:none;
}
.intro-pick__art img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:contain;object-position:center bottom;
  transform-origin:50% 100%;transform:translateY(0) scale(1);
  transition:transform .34s var(--ease);
  filter:drop-shadow(0 16px 28px rgba(35,32,43,.18));
}
.intro-pick__col:hover .intro-pick__art img{transform:translateY(-8px) scale(1.03);}
/* 底部姓名 + 罗马音 */
.intro-pick__meta{
  position:relative;z-index:1;flex:0 0 auto;width:100%;
  text-align:center;padding:16px 8px 24px;pointer-events:none;
}
.intro-pick__name{
  display:block;font-family:var(--f-display);font-weight:400;
  font-size:clamp(19px,1.6vw,27px);line-height:1.3;color:var(--ink-900);
}
.intro-pick__romaji{
  display:block;font-family:var(--f-latin);
  font-size:clamp(9px,.76vw,11.5px);letter-spacing:.22em;
  color:rgba(35,32,43,.62);margin-top:5px;
}
.intro-pick__col:hover .intro-pick__name{-webkit-text-stroke:.5px var(--ink-900);}
/* 入场：四栏 0.06s 交错下滑入；斜带从两侧滑入 */
.intro.is-pick .intro-pick__col{animation:introPickColIn .52s var(--ease) both;animation-delay:calc(var(--i,0)*.06s);}
.intro.is-pick .intro-pick__band{animation:introPickBandL .5s var(--ease) both;animation-delay:calc(var(--i,0)*.06s + .08s);}
.intro.is-pick .intro-pick__band--soft{animation-name:introPickBandR;}
@keyframes introPickColIn{from{opacity:0;transform:translateY(24px);}to{opacity:1;transform:translateY(0);}}
@keyframes introPickBandL{from{opacity:0;transform:translateX(-46%);}to{opacity:1;transform:translateX(0);}}
@keyframes introPickBandR{from{opacity:0;transform:translateX(46%);}to{opacity:1;transform:translateX(0);}}
/* 点击选定：该栏闪品牌红 */
.intro.is-pick .intro-pick__col.is-picked{animation:introPickFlash .46s var(--ease) both;}
@keyframes introPickFlash{0%{background:var(--cream-50);}30%{background:var(--red-brand);}100%{background:var(--cream-50);}}
/* 合照页仍显示四段进度 */
.intro.is-pick .intro-progress__segs{opacity:1;}
.intro.is-static .intro-cue{display:none;}

/* ---- 幕 3 · 锁与钥匙（4.0 – 4.8s） ---- */
.intro-scene--lock{display:grid;place-items:center;}
.intro-lock{position:relative;width:clamp(178px,18vw,262px);height:clamp(200px,20vw,292px);}
.intro-lock__blk{
  position:absolute;width:50%;height:30%;border-radius:5px;opacity:0;
}
.intro-lock__blk--a{left:0;top:38%;background:#8AE18F;--fx:-34vw;--fy:-24vh;--fr:-26deg;}
.intro-lock__blk--b{right:0;top:38%;background:#FDA8C5;--fx:34vw;--fy:-24vh;--fr:26deg;}
.intro-lock__blk--c{left:0;top:68%;background:var(--sky-300);--fx:-34vw;--fy:24vh;--fr:20deg;}
.intro-lock__blk--d{right:0;top:68%;background:#F8F0B2;--fx:34vw;--fy:24vh;--fr:-20deg;}
@keyframes introBlk{
  0%{opacity:0;transform:translate(var(--fx,0),var(--fy,0)) rotate(var(--fr,0deg)) scale(.62);}
  52%{opacity:1;}
  100%{opacity:1;transform:translate(0,0) rotate(0) scale(1);}
}
.intro-lock__shackle{
  position:absolute;left:14%;right:14%;top:0;height:42%;
  color:var(--red-accent);
  stroke-dasharray:160;stroke-dashoffset:160;
}
.intro-lock__shackle path{stroke-width:7;}
@keyframes introShackle{0%{stroke-dashoffset:160;}100%{stroke-dashoffset:0;}}
.intro-lock__hole{
  position:absolute;left:50%;top:56%;width:11%;height:15%;margin-left:-5.5%;
  background:var(--ink-900);border-radius:6px;opacity:0;
}
@keyframes introHole{0%{opacity:0;transform:scale(.4);}100%{opacity:1;transform:scale(1);}}
.intro-lock__key{
  position:absolute;right:2%;bottom:26%;width:32%;height:auto;
  color:var(--ink-900);opacity:0;
}
@keyframes introKey{
  0%{opacity:0;transform:translate(58%,56%) rotate(-90deg) scale(.82);}
  32%{opacity:1;}
  100%{opacity:1;transform:translate(0,0) rotate(0) scale(1);}
}
.intro-lock__burst{
  position:absolute;left:50%;top:56%;width:24px;height:24px;margin:-12px 0 0 -12px;
  border-radius:50%;opacity:0;
  background:radial-gradient(circle,#fff 0 36%,var(--red-accent) 37% 68%,rgba(254,32,29,0) 69%);
}
@keyframes introBurst{
  0%{opacity:0;transform:scale(.2);}
  16%{opacity:1;transform:scale(1);}
  100%{opacity:0;transform:scale(11);}
}
.intro-lock__spray{
  position:absolute;inset:-45%;opacity:0;
  background-image:radial-gradient(circle,rgba(251,6,5,.7) 1.6px,transparent 1.7px);
  background-size:14px 14px;
}
@keyframes introSpray{
  0%{opacity:0;transform:scale(.22);}
  28%{opacity:.85;}
  100%{opacity:0;transform:scale(1.5);}
}

/* ---- 幕 4 · 交接（4.8 – 5.2s） ---- */
.intro-whiteout{
  position:absolute;inset:-24%;background:#FDFDFD;opacity:0;
  transform-origin:50% 52%;
}
@keyframes introWhiteout{
  0%{opacity:0;transform:scale(.1);}
  55%{opacity:1;transform:scale(.72);}
  100%{opacity:1;transform:scale(1);}
}
.intro-topbar{
  position:absolute;left:0;right:0;top:0;height:4px;background:var(--red-brand);
  transform:scaleX(0);transform-origin:50% 50%;
}
@keyframes introTopbar{0%{transform:scaleX(0);}100%{transform:scaleX(1);}}

/* ---- SKIP ---- */
.intro-skip{
  position:absolute;top:22px;right:26px;z-index:3;
  padding:10px 16px;border:0;background:transparent;cursor:pointer;
  font-family:var(--f-latin);font-size:12px;letter-spacing:.26em;text-transform:uppercase;
  color:var(--ink-600);
  animation:introSkipIn .4s var(--ease) .3s both;
}
@keyframes introSkipIn{0%{opacity:0;transform:translateY(-6px);}100%{opacity:1;transform:translateY(0);}}
.intro-skip:hover{color:var(--red-brand);}
.intro-skip:focus-visible{outline:2px solid var(--red-accent);outline-offset:3px;}

/* ---- 移动端（图标阵列 3 列） ---- */
@media (max-width:767px){
  .intro-grid{
    grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(4,1fr);
    width:min(86vw,420px);height:min(64vh,560px);gap:min(1.6vh,14px);
  }
  .intro-ico svg{width:clamp(30px,9vw,44px);}
  .intro-heart svg{width:clamp(104px,30vw,150px);}
  .intro-band{width:62%;}
  .intro-beat__slab{top:-10%;bottom:-10%;left:-16%;width:106%;}
  .intro-beat__art{right:-4%;height:52%;}
  .intro-beat__meta{left:8%;top:26%;width:84%;--my:0;}
  .intro-beat__name{font-size:clamp(26px,8.6vw,40px);}
  .intro-beat__romaji{font-size:10.5px;letter-spacing:.2em;}
  .intro-cue{right:18px;bottom:20px;}
  .intro-cue svg{width:16px;height:16px;}
  .intro-pick{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;}
  .intro-pick__col{flex:none;}
  .intro-pick__col:nth-child(odd){border-left:0;}
  .intro-pick__col:nth-child(n+3){border-top:2px solid var(--red-brand);}
  .intro-pick__name{font-size:clamp(16px,4.6vw,20px);}
  .intro-pick__romaji{font-size:8.5px;letter-spacing:.16em;}
  .intro-pick__meta{padding:10px 6px 16px;}
  .intro-lock{width:140px;height:158px;}
  .intro-lock__blk--a,.intro-lock__blk--c{--fx:-44vw;}
  .intro-lock__blk--b,.intro-lock__blk--d{--fx:44vw;}
  .intro-skip{top:14px;right:14px;padding:8px 12px;font-size:11px;letter-spacing:.2em;}
  .intro-whiteout{inset:-45%;}
}

/* =========================================================
   v9 · 互动层：进度条 / 提示 / 网点涟漪 / 钥匙拖拽 / 心形 / 图标
   全部 Pointer Events；rAF 节流；涟漪 ≤3 层；粒子 ≤40
   ========================================================= */
/* 幕④⑤：进入锁幕时才创建动画（直接创建，避免 paused→running 的时间轴异常） */
.intro.is-lock .intro-lock__blk{animation:introBlk .78s cubic-bezier(.42,0,.2,1) 0s both;}
.intro.is-lock .intro-lock__shackle{animation:introShackle .46s var(--ease) .22s both;}
.intro.is-lock .intro-lock__hole{animation:introHole .28s linear .54s both;}
.intro.is-lock .intro-lock__key{animation:introKey .72s cubic-bezier(.3,.85,.2,1) .14s both;}
.intro.is-lock .intro-lock__burst{animation:introBurst .58s cubic-bezier(.2,.8,.24,1) .58s both;}
.intro.is-lock .intro-lock__spray{animation:introSpray .66s ease-out .6s both;}
.intro.is-lock .intro-whiteout{animation:introWhiteout .42s cubic-bezier(.35,0,.25,1) .78s both;}
.intro.is-lock .intro-topbar{animation:introTopbar .42s cubic-bezier(.5,0,.2,1) .84s both;}

/* A4 · 底部进度条（幕③ 为 4 段式，当前段高亮） */
.intro-progress{position:absolute;left:0;right:0;bottom:0;height:4px;z-index:4;background:rgba(251,6,5,.16);}
.intro-progress__fill{
  position:absolute;left:0;top:0;bottom:0;width:100%;
  background:var(--red-brand);
  transform:scaleX(0);transform-origin:0 50%;
  transition:transform .18s linear;
}
.intro-progress__segs{position:absolute;inset:0;display:flex;opacity:0;transition:opacity .25s var(--ease);}
.intro-progress__segs > i{flex:1 1 0;border-right:2px solid rgba(253,253,253,.8);}
.intro-progress__segs > i:last-child{border-right:0;}
.intro-progress__segs > i.is-on{background:rgba(255,255,255,.24);}
.intro.is-char .intro-progress__segs{opacity:1;}
/* 4px 太窄：向上扩一块不可见的悬停区 */
.intro-progress::after{content:"";position:absolute;left:0;right:0;bottom:0;height:10px;}
.intro-progress:hover ~ .intro-skip{text-decoration:underline;text-underline-offset:5px;scale:1.06;}
.intro-skip:hover{text-decoration:underline;text-underline-offset:5px;}

/* 幕③ 单人页右下角浮动提示（▼ · 2s 循环） */
.intro-cue{
  position:absolute;right:30px;bottom:28px;z-index:3;
  color:var(--ink-600);opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease);
}
.intro.is-char .intro-cue{opacity:.45;}
.intro-cue svg{display:block;width:18px;height:18px;}
.intro.is-char .intro-cue svg{animation:introCueBob 2s ease-in-out infinite;}
@keyframes introCueBob{0%,100%{transform:translateY(0);}50%{transform:translateY(7px);}}

/* B6 · 网点涟漪 */
.intro-ripple{
  position:absolute;width:30px;height:30px;margin:-15px 0 0 -15px;border-radius:50%;
  pointer-events:none;
  background-image:radial-gradient(circle,rgba(251,6,5,.5) 1.7px,transparent 1.8px);
  background-size:11px 11px;
  animation:introRipple .6s ease-out forwards;
}
@keyframes introRipple{
  0%{opacity:0;transform:scale(.28);}
  18%{opacity:1;}
  100%{opacity:0;transform:scale(9.5);}
}

/* 交互热区：各幕容器不拦截指针，仅以下元素可交互 */
.intro-beat.is-on,
.intro-ico,
.intro-heart,
.intro-lock__key{pointer-events:auto;}
.intro-topbar{pointer-events:none;}

/* B5 · 钥匙可拖拽 */
.intro-lock__key{touch-action:none;cursor:grab;}
.intro-lock__key.is-drag{cursor:grabbing;}
.intro-lock__key.is-snap{transition:transform .18s var(--ease);}
.intro-lock__hole{transition:scale .2s var(--ease);}
.intro.is-lock .intro-lock.is-ready .intro-lock__hole{scale:1.35;}
/* 拖拽命中：锁孔 / 光爆 / 喷溅立即触发 */
.intro.is-lock .intro-lock.is-hit .intro-lock__hole,
.intro.is-lock .intro-lock.is-hit .intro-lock__burst,
.intro.is-lock .intro-lock.is-hit .intro-lock__spray{animation-delay:0s;}

/* C7 · 心形响应 */
.intro-heart.is-near{animation:introHeartbeatFast .5s var(--ease) infinite;}
@keyframes introHeartbeatFast{
  0%,100%{opacity:1;transform:translate(-50%,-50%) scale(1);}
  50%{opacity:1;transform:translate(-50%,-50%) scale(1.1);}
}
.intro-heart.is-off{animation:none !important;opacity:0;transition:opacity .2s linear;}
.intro-dots.is-burst{animation:introDotsBurst .52s var(--ease) both;}
@keyframes introDotsBurst{
  0%{opacity:1;transform:scale(1);}
  45%{opacity:1;transform:scale(1.14);}
  100%{opacity:0;transform:scale(1.34);}
}

/* C8 · 图标弹跳 / 碎裂 */
.intro-ico.is-bump svg{animation:introIcoBump .44s cubic-bezier(.2,1.5,.36,1) both;}
@keyframes introIcoBump{0%{transform:scale(1);}40%{transform:scale(1.18);}100%{transform:scale(1);}}
.intro-ico.is-gone svg{opacity:0;transition:opacity .18s linear;}
.intro-particle{
  position:absolute;width:8px;height:8px;margin:-4px 0 0 -4px;border-radius:50%;
  background:currentColor;pointer-events:none;
  animation:introParticle .64s ease-out forwards;
}
@keyframes introParticle{
  0%{opacity:.95;transform:translate(0,0) scale(1);}
  100%{opacity:0;transform:translate(var(--dx,0),var(--dy,0)) scale(.4);}
}

/* ---- 无障碍：减弱动效 → 只留幕 0 静态帧 ---- */
.intro.is-static *,
.intro.is-static *::before,
.intro.is-static *::after{animation:none !important;transition:none !important;}
@media (prefers-reduced-motion: reduce){
  .intro *,
  .intro *::before,
  .intro *::after{animation:none !important;transition:none !important;}
  .intro-cue{display:none;}
}