:root {
  --stage-w: 390px;
  --phone-w: 390px;
  --phone-left: 0px;
  --purple: #6e61dc;
  --deep: #1d084e;
  --serif: "Hiragino Mincho ProN", "Yu Mincho", "YuMincho", serif;
  --sans: "Hiragino Sans", "Yu Gothic", "YuGothic", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  /* オーバースクロール時やセーフエリアに出る色。黒だと上下に黒帯が見えるのでLPの暗紫に */
  background: #0a0524;
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: clip; /* hidden だと position:sticky が壊れるため clip（スクロールコンテナを作らない） */
  color: var(--purple);
  font-family: var(--sans);
  letter-spacing: 0;
  /* PCで390コンテンツの外側に出る背景。クリスタルを暗めにしてLPと馴染ませる（モバイルは全幅なので見えない） */
  /* PCで440コンテンツの外側に出る領域。明るめだが彩度のあるラベンダーに（文字は暗色で視認性確保） */
  background: linear-gradient(180deg, #ece0fb 0%, #d9c6f3 50%, #c5acec 100%) fixed, #ddccf4;
}

img {
  display: block;
  max-width: none;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.splash {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  background: #000;
  opacity: 1;
  visibility: visible;
  will-change: opacity;
}

.splash__phone {
  position: relative;
  width: min(100vw, 390px);
  height: min(100svh, 714px);
  overflow: hidden;
  background: #1e1548;
}

.splash__bg,
.splash__shade,
.splash__copy {
  position: absolute;
}

.splash__bg {
  left: 50%;
  top: 0;
  width: 401px;
  height: 714px;
  object-fit: cover;
  transform: translateX(-50%);
}

.splash__shade {
  inset: 0;
  background: rgba(11, 7, 40, 0.61);
}

.splash__copy {
  left: 10%;
  top: 46.1%;
  width: 80%;
  height: auto;
}

body.is-loaded .splash {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

/* ===== シネマ的イントロ（スクロールピン＋スクラブ） ===== */
/* .cine = 縦長スクロールトラック。.cine__pin が画面に固定され、
   JS が scrollY からフェーズ進行度を計算して各 .cine-layer の opacity/transform を制御する */
.cine {
  position: relative;
  height: 440vh; /* スクロール量＝シーケンスの長さ。長くするほどゆっくり進む */
  background: transparent;
}

.cine__pin {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  display: grid;
  place-items: start center; /* 上揃え：拡大時に上が見切れないように */
  background: transparent; /* 390外側は body の馴染ませ背景を透かす */
}

.cine__phone {
  position: relative;
  grid-area: 1 / 1; /* 2枚のphoneを同じセルに重ねる（背面/前面） */
  width: 390px;
  height: 714px;
  transform-origin: top center; /* 上基準で拡大（上が見切れない） */
  overflow: visible; /* crystal(幅430)を390で切らない。はみ出しは .cine__pin が viewport で clip */
  background: transparent;
}

/* 全幅のクリスタル背景（左右の暗い領域を埋める） */
.cine-fullbg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  user-select: none;
}

.cine-layer {
  position: absolute;
  pointer-events: none;
  user-select: none;
  will-change: opacity, transform;
}

.cine-bg {
  left: -6px;
  top: 0;
  width: 401px;
  height: 714px;
  object-fit: cover;
  opacity: 1;
}

/* KV_0528.psd の各レイヤーは 1535x2732 フルキャンバスで書き出し。
   cine-fullbg と同じ全幅・object-fit:cover で重ね、PSD の合成を viewport で再現する */
.cine-crystal,
.cine-core,
.cine-idol {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cine-crystal {
  opacity: 0;
  transform-origin: center center;
  animation: crystal-breathe 7s ease-in-out infinite;
}

@keyframes crystal-breathe {
  0%, 100% { transform: scale(1.00); }
  50% { transform: scale(1.02); }
}

.cine-core {
  opacity: 0;
}

.cine-idol {
  opacity: 0;
}

.cine-logo {
  left: 15px;
  top: 65px;
  width: 360px;
  height: 109px;
  object-fit: contain;
  opacity: 0;
}

.cine-ppp {
  left: 15px;
  top: 21px;
  width: 124px;
  height: 21px;
  object-fit: contain;
  opacity: 0;
}

.cine-lead {
  left: 0;
  top: 404px;
  width: 100%;
  height: auto;
  object-fit: contain;
  opacity: 0;
}

.cine-dim {
  position: absolute;
  inset: 0;
  background: #0a0524;
  opacity: 0.45;
  pointer-events: none;
}

.cine-copy {
  left: 10%;
  top: 46%;
  width: 80%;
  height: auto;
  opacity: 1;
}

.cine-story-head {
  left: 140px;
  top: 49px;
  width: 110px;
  height: 39px;
  object-fit: contain;
  opacity: 0;
}

.cine-story-content {
  left: 51px;
  top: 151px;
  width: 287px;
  height: 437px;
  object-fit: contain;
  opacity: 0;
}

/* SCROLLインジケーター（splash下部・上下バウンス。スクロールでフェードアウト） */
.cine-scroll {
  position: absolute;
  left: 50%;
  top: 506px;
  width: 132px;
  height: auto;
  opacity: 0;
  pointer-events: none;
  user-select: none;
  animation: scroll-bounce 2.6s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

.page {
  width: 100%;
  min-height: 100vh;
  background: transparent; /* body の馴染ませ背景を透かす */
}

.stage-wrap {
  position: relative;
  width: 100%;
  margin: 0 auto;
  overflow: hidden;
}

.stage {
  position: relative;
  width: var(--stage-w);
  margin: 0;
  overflow: hidden;
  transform-origin: top left;
  background: url("./assets/bg.webp") center top / cover repeat-y, #2a1a6f;
}

.phone {
  position: relative;
  left: var(--phone-left);
  width: var(--phone-w);
  overflow: visible;
}

.hero-screen,
.story-screen,
.tryvii-screen,
.ppp-screen {
  height: 714px;
}

.screen-light {
  background: #fff;
}

.hero-screen {
  background: #312065;
}

.hero-bg {
  position: absolute;
  left: -6px;
  top: 0;
  width: 401px;
  height: 714px;
  object-fit: cover;
}

.hero-shade {
  position: absolute;
  inset: 0;
  background: rgba(20, 9, 52, 0.18);
}

.hero-crystal {
  position: absolute;
  left: -20px;
  top: 145px;
  width: 430px;
  height: 558px;
  object-fit: cover;
  mix-blend-mode: screen;
}

.hero-core {
  position: absolute;
  top: 143px;
  width: 232px;
  height: 273px;
  object-fit: contain;
  opacity: 0.92;
  mix-blend-mode: screen;
}

.hero-idol {
  position: absolute;
  top: 279px;
  width: 366px;
  height: 399px;
  object-fit: contain;
}

.hero-logo {
  position: absolute;
  left: 15px;
  top: 65px;
  width: 360px;
  height: 109px;
  object-fit: contain;
}

.hero-ppp {
  position: absolute;
  left: 15px;
  top: 21px;
  width: 124px;
  height: 21px;
  object-fit: contain;
}

.center-x {
  left: 50%;
  transform: translateX(-50%);
}

.story-screen {
  position: relative;
}

.story-bg {
  position: absolute;
  left: 0;
  top: -18px;
  width: 390px;
  height: 732px;
  object-fit: cover;
}

.story-shade {
  position: absolute;
  left: 0;
  top: -18px;
  width: 390px;
  height: 732px;
  background: rgba(35, 0, 109, 0.75);
}

.story-head {
  position: absolute;
  z-index: 1;
  left: 140px;
  top: 49px;
  width: 110px;
  height: 39px;
  object-fit: contain;
}

.story-content {
  position: absolute;
  z-index: 1;
  left: 51px;
  top: 151px;
  width: 287px;
  height: 437px;
  object-fit: contain;
}

.section-art {
  position: absolute;
  pointer-events: none;
  user-select: none;
}

.tryvii-screen {
  position: relative;
  height: 714px;
  background: url("./assets/bg.webp") center / cover;
}

.section-art--tryvii {
  position: absolute;
  left: 11px;
  top: 20px;
  width: 368px;
  height: 1093px;
  object-fit: contain;
  object-position: top center;
  z-index: 0;
}

.tryvii-crystal-a {
  position: absolute;
  z-index: 1;
  right: 0;
  top: -40px;
  width: 130px;
  height: auto;
  object-fit: contain;
  pointer-events: none;
}

.tryvii-crystal-b {
  position: absolute;
  z-index: 1;
  left: 0;
  top: 540px;
  width: 200px;
  height: auto;
  object-fit: contain;
  pointer-events: none;
}

.tryvii-lead {
  position: absolute;
  z-index: 2;
  left: 23px;
  top: 151px;
  width: 342px;
  margin: 0;
  color: #6b5baf;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
  text-align: center;
}

.tryvii-photo {
  position: absolute;
  z-index: 2;
  left: 45px;
  top: 193px;
  width: 300px;
  height: 194px;
  object-fit: cover;
}

.tryvii-body {
  position: absolute;
  z-index: 2;
  left: 45px;
  top: 406px;
  width: 300px;
  margin: 0;
  color: #6a6095;
  font-family: var(--sans);
  font-size: 11px;
  line-height: 2;
  text-align: center;
}

.float-crystal {
  position: absolute;
  z-index: 3;
  pointer-events: none;
  user-select: none;
  display: none;
}

.float-crystal--a {
  left: -40px;
  top: 2240px;
  width: 180px;
  height: 170px;
  object-fit: contain;
  opacity: 0.85;
}

.ppp-screen {
  position: relative;
  height: 714px;
  background: var(--deep);
}

.section-art--ppp {
  position: absolute;
  left: 0;
  top: -103px;
  width: 390px;
  height: 864px;
  object-fit: contain;
  object-position: top center;
  z-index: 0;
}

.ppp-photo {
  position: absolute;
  z-index: 1;
  left: 0;
  top: 102px;
  width: 390px;
  height: 287px;
  object-fit: cover;
  overflow: hidden;
}

.ppp-slideshow img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  animation: ppp-slide 18s infinite;
}

.ppp-slideshow img:nth-child(1) { animation-delay: 0s; }
.ppp-slideshow img:nth-child(2) { animation-delay: -12s; }
.ppp-slideshow img:nth-child(3) { animation-delay: -6s; }

@keyframes ppp-slide {
  0%, 27.78% { opacity: 1; }
  33.33%, 94.44% { opacity: 0; }
  100% { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .ppp-slideshow img {
    animation: none;
  }
  .ppp-slideshow img:nth-child(1) { opacity: 1; }
}

.ppp-copy {
  position: absolute;
  z-index: 2;
  left: 22px;
  top: 413px;
  width: 345px;
  margin: 0;
  color: #fff;
  font-family: var(--sans);
  font-size: 12px;
  line-height: 2.2;
  letter-spacing: 0.02em;
}

.creators-strip {
  position: absolute;
  z-index: 2;
  left: 0;
  right: 0;
  bottom: 32px;
  width: 390px;
}

.creators-strip__label {
  margin: 0 0 8px 22px;
  color: rgba(255, 255, 255, 0.78);
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
}

.creators-marquee {
  position: relative;
  width: 100%;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 20px, #000 calc(100% - 20px), transparent 100%);
          mask-image: linear-gradient(90deg, transparent 0, #000 20px, #000 calc(100% - 20px), transparent 100%);
}

.creators-track {
  display: flex;
  width: max-content;
  animation: creators-scroll 32s linear infinite;
}

.creators-row {
  display: flex;
  gap: 10px;
  margin: 0 10px 0 0;
  padding: 0;
  list-style: none;
}

.creator-avatar {
  width: 76px;
  height: 76px;
  border-radius: 12px;
  object-fit: cover;
  background: rgba(255, 255, 255, 0.06);
  outline: 1px solid rgba(255, 255, 255, 0.18);
  outline-offset: -1px;
}

@keyframes creators-scroll {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(-50%, 0, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .creators-track { animation: none; }
}

/* §3-§5 share one continuous purple crystal background (Figma: Rectangle 8).
   Layering is by DOM order (no z-index): smc-bg < section3 < crystals < cards,
   then the music card and condition content paint over it from later sections. */
.support-screen {
  position: relative;
  height: 614px;
  margin-top: -104px;
  background: transparent;
}

.smc-bg {
  position: absolute;
  left: 0;
  top: 183px;
  width: 390px;
  height: 1934px;
  object-fit: cover;
  object-position: center;
  pointer-events: none;
  user-select: none;
}

.section-art--support {
  position: absolute;
  left: 0;
  top: 0;
  width: 390px;
  height: 896px;
  object-fit: contain;
  object-position: top center;
}

.support-content {
  position: absolute;
  left: 53px;
  top: 155px;
  width: 284px;
  height: 429px;
  object-fit: contain;
  filter: drop-shadow(0 12px 24px rgba(89, 64, 176, 0.14));
}


.music-screen {
  position: relative;
  display: flex;
  justify-content: center;
  margin-top: 0;
  padding: 0 0 40px;
  background: transparent;
}

.music-card {
  display: flex;
  flex-direction: column;
  width: 338px;
  padding: 24px 22px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 16px 40px rgba(85, 67, 170, 0.14);
}

.music-block {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.music-hero {
  width: 264px;
  height: auto;
  margin: 0 auto 14px;
}

.music-hero--sika {
  width: 200px;
  margin-bottom: 8px;
}

.music-desc {
  margin: 0 0 10px;
  color: #6a6095;
  font-family: var(--sans);
  font-size: 10px;
  line-height: 1.85;
  text-align: left;
}

.music-meta {
  margin: 0 0 8px;
  color: #6a6095;
  font-family: var(--sans);
  font-size: 10px;
  letter-spacing: 0.04em;
  text-align: center;
}

.music-link {
  align-self: flex-end;
  color: #6845ff;
  font-family: var(--sans);
  font-size: 10px;
  text-decoration: underline;
}

.music-divider {
  height: 1px;
  margin: 18px 0;
  background: linear-gradient(to right, transparent, rgba(147, 124, 234, 0.4), transparent);
}

.condition-screen {
  position: relative;
  height: 650px;
  margin-top: 0;
  overflow: visible;
  background: transparent;
}

.condition-pill {
  position: absolute;
  left: 37px;
  top: 0;
  width: 316px;
  height: auto;
}

.condition-circle {
  position: absolute;
  left: -93px;
  top: 109px;
  width: 576px;
  height: 576px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
}

.condition-list {
  position: absolute;
  left: 30px;
  top: 180px;
  width: 338px;
  margin: 0;
  color: #4a3f80;
  font-family: var(--sans);
  font-size: 12px;
  font-weight: 500;
  line-height: 2.4;
  letter-spacing: 0;
  text-align: left;
  word-break: normal;
  overflow-wrap: normal;
  line-break: strict;
}

.entry-screen {
  position: relative;
  height: 700px;
}

.section-art--entry {
  position: absolute;
  left: 0;
  top: 0;
  width: 390px;
  height: 700px;
  object-fit: cover;
  object-position: top center;
  z-index: 0;
}

.entry-lead {
  position: absolute;
  z-index: 2;
  left: 28px;
  top: 208px;
  width: 334px;
  margin: 0;
  color: #6a6095;
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.6;
  text-align: center;
}

.picture-guide {
  position: absolute;
  z-index: 1;
  left: 0.5px;
  top: 240px;
  width: 389px;
  height: 376px;
  object-fit: contain;
}

.flow-screen {
  position: relative;
  height: 672px;
  margin-top: -60px;
  background: url("./assets/bg.webp") center / cover;
}

.section-art--flow {
  position: absolute;
  left: 27px;
  top: 30px;
  width: 336px;
  height: 585px;
  object-fit: contain;
  object-position: top center;
  z-index: 0;
}

.flow-img {
  position: absolute;
  z-index: 1;
  left: 46px;
  top: 158px;
  width: 297px;
}

.notes-screen {
  position: relative;
  height: 827px;
  margin-top: -40px;
}

.section-art--notes {
  position: absolute;
  left: 0;
  top: 0;
  width: 390px;
  height: 827px;
  object-fit: cover;
  object-position: top center;
  z-index: 0;
}

.notes-list {
  position: absolute;
  z-index: 1;
  left: 26px;
  top: 127px;
  width: 338px;
  margin: 0;
  color: #22184d;
  font-family: var(--sans);
  font-size: 12px;
  line-height: 26px;
}

.faq-screen {
  position: relative;
  z-index: 1;
  height: 764px;
  margin-top: -87px;
  padding-bottom: 16px;
  background: transparent;
}

.section-art--faq {
  position: absolute;
  left: 0;
  top: 0;
  width: 390px;
  height: 1049px;
  object-fit: cover;
  object-position: center top;
  z-index: 0;
}

.faq-list {
  position: absolute;
  z-index: 2;
  left: 37px;
  top: 150px;
  display: grid;
  gap: 40px;
  width: 316px;
}

.faq-item {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 8px 10px;
  align-items: start;
  color: #fff;
  font-size: 10px;
  line-height: 1.55;
}

.faq-item img {
  width: 28px;
  height: auto;
}

.faq-item p {
  margin: 2px 0 0;
}

.faq-q-text {
  font-weight: 600;
}

.company-card {
  position: absolute;
  z-index: 2;
  left: 0;
  bottom: 0;
  display: grid;
  grid-template-columns: 128px 1fr;
  gap: 12px;
  align-items: center;
  width: 390px;
  padding: 14px 18px;
  color: #000;
  background: #f2f7ff;
  box-sizing: border-box;
}

.company-logo {
  width: 128px;
  height: auto;
}

.company-info {
  display: grid;
  gap: 2px;
  font-family: var(--sans);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.4;
}

.company-info p {
  margin: 0;
}

.company-info span {
  display: inline-block;
  width: 36px;
}

.company-info a {
  color: #12b7e1;
  text-decoration: underline;
  word-break: break-all;
}

.company-name {
  margin-bottom: 4px !important;
  font-size: 16px;
  letter-spacing: 0.02em;
}

.company-addr {
  margin-bottom: 4px !important;
  font-size: 11px;
  line-height: 1.4;
}

.last-screen {
  position: relative;
  height: 285px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 20px;
  background: #29126c;
  overflow: hidden;
}

.last-bg {
  position: absolute;
  inset: 0;
  width: 390px;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

.last-logo,
.last-message {
  position: relative;
  z-index: 1;
}

.last-logo {
  width: 260px;
  height: auto;
}

.last-message {
  margin: 0;
  color: #fff;
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.6;
  letter-spacing: 0.05em;
  text-shadow: 0 0 12px rgba(255, 255, 255, 0.5);
}

.reveal {
  opacity: 0;
  transform: translateY(48px);
  transition: opacity 900ms ease, transform 900ms cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.parallax {
  will-change: transform;
}

/* スクロール進行度でスクラブ表示する要素（story見出し・本文）。初期は非表示、JSがopacity/transformを制御 */
.story-scrub {
  opacity: 0;
  will-change: transform, opacity;
}

/* 後半セクションの装飾クリスタル（テキストの下・端寄せ・パララックス対応）
   位置/サイズ/opacityは後で微調整しやすいよう個別クラスに分離 */
.deco-crystal {
  position: absolute;
  pointer-events: none;
  user-select: none;
  height: auto;
  object-fit: contain;
}

.deco-support-r { left: 288px; top: -48px; width: 203px; }
.deco-support-l { left: -110px; top: 645px; width: 326px; }

.deco-condition-r { right: -40px; top: 60px; width: 130px; }
.deco-condition-l { left: -56px; top: 560px; width: 168px; }

.deco-entry-tr { top: 40px; right: -26px; width: 116px; }

.deco-flow-tl { top: 28px; left: -46px; width: 145px; }
.deco-flow-br { top: 570px; right: -34px; width: 120px; z-index: 5; }

.deco-notes-bl { top: 760px; left: -44px; width: 140px; }

.deco-faq-r { top: 0; right: -28px; width: 108px; }
.deco-faq-l { top: 530px; left: -42px; width: 138px; }

/* ===== CTA / 目次（挙動は参照プロジェクト準拠。見た目は後で調整） =====
   モバイル: .floating-cta を下部に固定オーバーレイ表示
   デスクトップ(≥960px): 左に .side-panel-left（目次＋CTA）を固定表示し floating-cta は非表示 */
.side-cta,
.floating-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 24px;
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(90deg, #8a78ff, #6e61dc);
  box-shadow: 0 18px 34px rgba(60, 99, 185, 0.28);
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 400;
  text-decoration: none;
  letter-spacing: 0.04em;
}

/* デスクトップ用パネルはモバイルでは隠す */
.side-panel {
  display: none;
}

/* モバイル: 下部固定オーバーレイCTA（参照サイトと同じボーダーフラッシュ） */
.floating-cta {
  position: fixed;
  z-index: 60;
  left: 50%;
  /* translate3d でGPU合成レイヤーに昇格 → iOSがスクロール中もfixedを追従させる
     （2D transformだと下スクロール中に再描画されず一時的に隠れることがある） */
  transform: translate3d(-50%, 0, 0);
  backface-visibility: hidden;
  width: min(calc(100vw - 48px), 342px);
  bottom: max(20px, calc(env(safe-area-inset-bottom) + 16px));
  min-height: 54px;
  font-size: 17px;
  border: 2px solid rgba(255, 255, 255, 0.58);
  box-shadow:
    0 18px 34px rgba(60, 99, 185, 0.32),
    0 0 0 1px rgba(255, 255, 255, 0.18) inset;
  isolation: isolate;
  animation: cta-border-glow 2.8s ease-in-out infinite;
  will-change: transform, box-shadow, border-color;
}

.floating-cta::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -2px;
  border: 2px solid rgba(255, 255, 255, 0.9);
  border-radius: inherit;
  opacity: 0;
  pointer-events: none;
  box-shadow: 0 0 24px rgba(255, 255, 255, 0.72);
  animation: cta-ring-pulse 2.8s ease-in-out infinite;
  will-change: opacity, inset, box-shadow;
}

@keyframes cta-border-glow {
  0%, 52%, 100% {
    border-color: rgba(255, 255, 255, 0.58);
    box-shadow:
      0 18px 34px rgba(60, 99, 185, 0.32),
      0 0 0 1px rgba(255, 255, 255, 0.18) inset;
  }
  68%, 78% {
    border-color: #ffffff;
    box-shadow:
      0 18px 34px rgba(60, 99, 185, 0.36),
      0 0 28px rgba(255, 255, 255, 0.95),
      0 0 0 1px rgba(255, 255, 255, 0.44) inset;
  }
}

@keyframes cta-ring-pulse {
  0%, 50% { inset: -2px; opacity: 0; box-shadow: 0 0 0 rgba(255, 255, 255, 0); }
  64% { inset: -4px; opacity: 0.34; box-shadow: 0 0 14px rgba(255, 255, 255, 0.36); }
  76% { inset: -8px; opacity: 0.9; box-shadow: 0 0 26px rgba(255, 255, 255, 0.82); }
  88% { inset: -12px; opacity: 0.16; box-shadow: 0 0 34px rgba(255, 255, 255, 0.46); }
  99% { inset: -16px; opacity: 0; box-shadow: 0 0 42px rgba(255, 255, 255, 0); }
  100% { inset: -2px; opacity: 0; box-shadow: 0 0 0 rgba(255, 255, 255, 0); }
}

@media (min-width: 960px) {
  /* PCではcineも中央クリッピング（全幅背景・暗幕・PSDレイヤーをPC幅440に絞る）。
     crystal/idol は JS/CSS が transform を制御するため、translateX ではなく
     margin-left で中央寄せして transform を競合させない。 */
  .cine-fullbg,
  .cine-crystal,
  .cine-core,
  .cine-idol,
  .cine-dim {
    left: 50%;
    right: auto;
    width: 440px;
    margin-left: -220px;
  }

  /* PCでは前景を440でクリップ（crystal(幅430)が横にはみ出さない）。
     overflow:hidden だと transform済みphone内のアニメ要素(crystal)のクリップ端が
     スクロール毎に再描画されて右側がちらつく → コンポジタ層のclip-pathで安定させる */
  .cine__phone {
    overflow: hidden;
    clip-path: inset(0);
    backface-visibility: hidden;
    will-change: transform;
  }

  /* デスクトップ: 左サイドパネル（目次＋CTA）を固定表示 */
  .side-panel-left {
    display: flex;
    position: fixed;
    z-index: 60;
    left: 0;
    top: 0;
    width: calc((100vw - 440px) / 2); /* PC幅(440)コンテンツの左側の領域いっぱい＝内容をその中央に */
    height: 100vh;
    align-items: center;
    justify-content: center;
    padding: 0 24px;
    color: #2a1f55; /* 明るい外側領域に合わせて暗色 */
  }

  .side-inner {
    width: min(100%, 340px);
  }

  .side-logo {
    display: block;
    width: 280px;
    max-width: 100%;
    margin: 0 0 30px;
  }

  .side-nav {
    display: grid;
    counter-reset: side-menu;
    border-top: 1px solid rgba(42, 31, 85, 0.22);
  }

  .side-nav a {
    counter-increment: side-menu;
    display: grid;
    grid-template-columns: 38px 1fr;
    align-items: center;
    min-height: 52px;
    padding: 13px 0;
    border-bottom: 1px solid rgba(42, 31, 85, 0.16);
    color: #2a1f55;
    font-family: var(--sans);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.35;
    text-decoration: none;
  }

  .side-nav a::before {
    content: counter(side-menu, decimal-leading-zero);
    color: rgba(110, 97, 220, 0.85);
    font-family: "Times New Roman", var(--serif), serif;
    font-size: 16px;
    font-style: normal;
    font-weight: 300;
    letter-spacing: 0.04em;
  }

  .side-cta {
    width: 100%;
    margin-top: 30px;
    min-height: 58px;
    font-size: 17px;
  }

  .floating-cta {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}