/* (EXTENDS) Tank 公式サイト。色と書体はリール（2026-10-10 v7）とアプリの画面に合わせる。 */
:root {
  color-scheme: dark;
  --deep: #082427;
  --water: #0e3a3d;
  --shallow: #165252;
  --mint: #7fe0be;
  --mint-soft: rgba(127, 224, 190, 0.22);
  --text: #eaf4f1;
  --text-dim: #a8c8c2;
  --board: #ffffff;
  --board-ink: #0a2a2e;
  --board-ink-dim: #3f5d5f;
  --board-red: #e2412b;
  --brass: #e8c478;
  --brass-ink: #2b2618;
  --font-ja: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic UI", "Yu Gothic", Meiryo, sans-serif;
  --font-num: "Oswald", var(--font-ja);
  --gutter: max(16px, env(safe-area-inset-left));
  --bar-h: 56px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--bar-h) + 12px); }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  margin: 0;
  background: var(--deep);
  color: var(--text);
  font-family: var(--font-ja);
  font-size: 1rem;
  line-height: 1.85;
  letter-spacing: 0.02em;
  font-feature-settings: "palt" 0;
  overflow-x: hidden;
}
img, video { display: block; max-width: 100%; height: auto; }
a { color: var(--mint); text-underline-offset: 0.2em; }
h1, h2, h3 { margin: 0; line-height: 1.35; font-feature-settings: "palt" 1; }
p { margin: 0; }
:focus-visible { outline: 3px solid var(--mint); outline-offset: 3px; border-radius: 4px; }
.nw { white-space: nowrap; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 8px; top: -60px; z-index: 20; background: var(--mint); color: var(--deep); padding: 8px 14px; border-radius: 8px; font-weight: 700; }
.skip:focus { top: 8px; }

.wrap { width: 100%; max-width: 1120px; margin-inline: auto; padding-inline: var(--gutter); }

/* ヘッダー */
.bar {
  position: sticky; top: 0; z-index: 10;
  background: rgba(8, 36, 39, 0.84);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(127, 224, 190, 0.12);
}
.bar__inner { max-width: 1120px; margin-inline: auto; padding-inline: var(--gutter); height: var(--bar-h); display: flex; align-items: center; gap: 24px; }
.bar__logo img { width: 124px; height: auto; }
@media (min-width: 900px) { .bar__logo img { width: 140px; } }
.bar__nav { display: none; gap: 22px; margin-left: auto; font-size: 0.875rem; }
.bar__nav a { color: var(--text-dim); text-decoration: none; }
.bar__nav a:hover { color: var(--text); }
.bar__sound {
  margin-left: auto; display: inline-flex; align-items: center; gap: 8px; height: 34px; padding: 0 12px;
  font: inherit; font-size: 0.8125rem; font-weight: 700; color: var(--text-dim); white-space: nowrap;
  background: transparent; border: 1px solid rgba(234, 244, 241, 0.22); border-radius: 999px; cursor: pointer;
}
.bar__sound:hover { color: var(--text); border-color: rgba(234, 244, 241, 0.45); }
.bar__sound.is-on { color: var(--text); border-color: var(--mint-soft); }
.bar__eq { display: inline-flex; align-items: flex-end; gap: 2px; height: 12px; }
.bar__eq i { display: block; width: 2px; height: 2px; border-radius: 1px; background: currentColor; }
.bar__sound.is-on .bar__eq i { background: var(--mint); animation: eq 0.9s ease-in-out infinite alternate; }
.bar__sound.is-on .bar__eq i:nth-child(2) { animation-delay: -0.3s; }
.bar__sound.is-on .bar__eq i:nth-child(3) { animation-delay: -0.6s; }
.bar__sound.is-on .bar__eq i:nth-child(4) { animation-delay: -0.15s; }
.bar__sound.is-loading .bar__eq i { opacity: 0.4; }
@keyframes eq { from { height: 2px; } to { height: 12px; } }
.bar__sound-state { font-weight: 500; }
@media (max-width: 379px) { .bar__sound-state { display: none; } .bar__sound { padding: 0 10px; } }
.bar__cta {
  margin-left: 8px; padding: 6px 14px; border-radius: 999px;
  background: var(--mint); color: var(--deep); font-size: 0.875rem; font-weight: 700; text-decoration: none; white-space: nowrap;
}
@media (min-width: 960px) {
  .bar__nav { display: flex; }
  .bar__nav + .bar__sound { margin-left: 8px; }
}

/* ファーストビュー */
.hero {
  position: relative;
  background:
    radial-gradient(90% 55% at 22% -8%, rgba(127, 224, 190, 0.20), transparent 62%),
    radial-gradient(70% 50% at 88% 12%, rgba(64, 160, 150, 0.16), transparent 70%),
    linear-gradient(180deg, var(--water) 0%, var(--deep) 100%);
  overflow: hidden;
}
.hero__scene { position: absolute; inset: 0; overflow: hidden; }
.hero__poster, .hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero__poster { object-fit: cover; }
.hero__canvas { display: block; opacity: 0; transition: opacity 0.9s ease; }
.hero__scene.is-live .hero__canvas { opacity: 1; }
.hero__scene::after {
  /* 文字の下だけ水を少し暗くして読みやすく */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(4, 20, 22, 0.5) 0%, rgba(4, 20, 22, 0.15) 45%, rgba(4, 20, 22, 0) 70%);
}
.hero__copy { text-shadow: 0 2px 18px rgba(2, 14, 16, 0.55); }
.hero__inner {
  position: relative; z-index: 1; max-width: 1120px; margin-inline: auto;
  padding: 44px var(--gutter) 64px;
  display: grid; gap: 44px;
}
.hero__logo { margin: 0 0 22px; }
.hero__logo img { width: clamp(150px, 42vw, 230px); height: auto; filter: drop-shadow(0 4px 18px rgba(2, 14, 16, 0.5)); }
.hero__kicker { color: var(--text-dim); font-size: clamp(0.95rem, 3.6vw, 1.15rem); font-weight: 600; margin-bottom: 14px; }
.hero__title { font-size: clamp(2.6rem, 11vw, 4.4rem); font-weight: 800; letter-spacing: 0.01em; line-height: 1.18; }
.hero__title span { display: block; }
.hero__title-2 { color: var(--mint); }
.hero__lead { margin-top: 24px; max-width: 30em; color: var(--text); font-size: clamp(1rem, 3.8vw, 1.0625rem); }
.hero__meta { margin-top: 12px; color: var(--text-dim); font-size: 0.9375rem; }

.stores { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 12px; }
.stores--center { justify-content: center; }
.store {
  display: inline-flex; flex-direction: column; justify-content: center;
  min-width: 156px; min-height: 58px; padding: 8px 18px;
  border-radius: 12px; border: 1.5px solid rgba(234, 244, 241, 0.55);
  color: var(--text); text-decoration: none; line-height: 1.25;
  background: rgba(6, 28, 30, 0.6); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
.store__name { font-family: var(--font-num); font-weight: 600; font-size: 1.25rem; letter-spacing: 0.01em; }
.store__state { font-size: 0.8125rem; color: var(--text-dim); }
.store--soon .store__state { color: var(--mint); font-weight: 700; }
a.store { background: var(--text); color: var(--deep); border-color: var(--text); }
a.store .store__state { color: var(--board-ink-dim); }
a.store:hover { background: #ffffff; }

.reel { margin: 0; justify-self: center; display: grid; justify-items: center; gap: 12px; }
.reel__frame {
  width: min(300px, 76vw); aspect-ratio: 9 / 16;
  border-radius: 34px; overflow: hidden;
  border: 6px solid #173f41;
  box-shadow: 0 0 0 1px rgba(127, 224, 190, 0.28), 0 28px 60px rgba(0, 0, 0, 0.38);
  background: var(--deep);
}
.reel__video { width: 100%; height: 100%; object-fit: cover; }
.reel__controls { display: flex; gap: 8px; }
.reel__btn {
  font: inherit; font-size: 0.8125rem; font-weight: 700; color: var(--text);
  background: rgba(234, 244, 241, 0.08); border: 1px solid rgba(234, 244, 241, 0.28);
  border-radius: 999px; padding: 5px 14px; cursor: pointer;
}
.reel__btn:hover { background: rgba(234, 244, 241, 0.16); }
.reel__note { font-size: 0.75rem; color: var(--text-dim); }

@media (min-width: 900px) {
  .hero__scene::after { background: linear-gradient(90deg, rgba(4, 20, 22, 0.55) 0%, rgba(4, 20, 22, 0.2) 42%, rgba(4, 20, 22, 0) 62%); }
  .hero__inner { min-height: min(980px, calc(100svh - var(--bar-h))); grid-template-columns: minmax(0, 1fr) 320px; align-items: center; gap: 72px; padding-block: 132px 150px; }
  .hero__logo img { width: 200px; }
  .reel__frame { width: 320px; }
}

/* セクション共通 */
.section { padding-block: 80px; }
.section__title { font-size: clamp(1.65rem, 6.4vw, 2.5rem); font-weight: 800; letter-spacing: 0.01em; }
.section__lead { margin-top: 16px; max-width: 34em; color: var(--text-dim); }
@media (min-width: 900px) { .section { padding-block: 96px; } }

/* Weigh-in 連携 */
.weighin { background: linear-gradient(180deg, var(--deep) 0%, #0b3033 100%); }
.steps { list-style: none; margin: 44px 0 0; padding: 0; display: grid; gap: 28px; }
.step { display: grid; grid-template-columns: 38% minmax(0, 1fr); gap: 18px; align-items: start; align-content: start; }
.step__text { order: 2; }
.step__photo, .step__shot {
  order: 1; width: 100%; aspect-ratio: 4 / 5; object-fit: cover;
  border-radius: 16px; border: 1px solid rgba(127, 224, 190, 0.2); background: var(--water);
}
.step__photo { object-position: 0% 50%; }
.step:nth-child(2) .step__shot { object-position: 50% 30%; }
.step:nth-child(3) .step__shot { object-position: 50% 18%; }
.step:nth-child(4) .step__shot { object-position: 50% 20%; }
.step__num { display: block; font-family: var(--font-num); font-weight: 600; font-size: 1.75rem; line-height: 1; color: var(--mint); margin-bottom: 8px; }
.step h3 { font-size: 1.0625rem; font-weight: 700; }
.step p { margin-top: 8px; color: var(--text-dim); font-size: 0.9375rem; line-height: 1.8; }
@media (min-width: 900px) {
  .steps { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; }
  .step { grid-template-columns: 1fr; gap: 20px; }
}

/* 連携のルール：Weigh-in のメジャーボードに見立てた板 */
.board {
  margin-top: 64px; position: relative;
  background: var(--board); color: var(--board-ink);
  border-radius: 6px; overflow: hidden;
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.3);
}
.board__scale {
  /* 板の幅を 100cm として、2cm ごとの細い目盛りと 10cm ごとの太い目盛りを刻む */
  position: relative; height: 40px;
  border-left: 3px solid var(--board-red);
  background-image:
    linear-gradient(90deg, var(--board-ink) 1.5px, transparent 1.5px),
    linear-gradient(90deg, var(--board-ink) 1px, transparent 1px);
  background-size: 10% 16px, 2% 9px;
  background-repeat: repeat-x;
  opacity: 0.92;
}
.board__scale span {
  position: absolute; top: 15px; margin-left: 4px;
  font-family: var(--font-num); font-weight: 600; font-size: 1.05rem; line-height: 1; color: var(--board-red);
}
.board__scale span:nth-child(1) { left: 0%; }
.board__scale span:nth-child(2) { left: 10%; }
.board__scale span:nth-child(3) { left: 20%; }
.board__scale span:nth-child(4) { left: 30%; }
.board__scale span:nth-child(5) { left: 40%; }
.board__scale span:nth-child(6) { left: 50%; }
.board__scale span:nth-child(7) { left: 60%; }
.board__scale span:nth-child(8) { left: 70%; }
.board__scale span:nth-child(9) { left: 80%; }
.board__scale span:nth-child(10) { left: 90%; }
.board__title { padding: 22px 24px 6px; font-size: clamp(1.3rem, 5vw, 1.6rem); font-weight: 800; }
.rules { margin: 0; padding: 4px 24px 24px; display: grid; }
.rule { padding-block: 16px; border-top: 1px solid rgba(10, 42, 46, 0.14); }
.rule:first-child { border-top: 0; }
.rule dt { font-weight: 700; font-size: 1.0625rem; }
.rule dd { margin: 4px 0 0; color: var(--board-ink-dim); font-size: 0.9375rem; line-height: 1.8; }
.rule--wide { margin-top: 12px; padding: 18px 20px; border-top: 0; border-radius: 6px; background: #e6f6f0; box-shadow: inset 4px 0 0 var(--mint); }
.rule--wide .rule__note { margin-top: 10px; font-size: 0.8125rem; color: var(--board-ink-dim); }
@media (min-width: 900px) {
  .rule--wide { grid-column: 1 / -1; padding: 20px 24px; }
  .board__title { padding: 28px 40px 8px; }
  .rules { grid-template-columns: 1fr 1fr; column-gap: 48px; padding: 8px 40px 32px; }
  .rule:nth-child(2) { border-top: 0; }
}

/* できること */
.features { background: #0b3033; padding-bottom: 88px; }
.rail {
  list-style: none; margin: 40px 0 0; padding: 0 var(--gutter) 8px;
  display: grid; grid-auto-flow: column; grid-auto-columns: min(66vw, 260px); gap: 18px;
  overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: var(--gutter);
  overscroll-behavior-x: contain;
}
.shot { scroll-snap-align: start; }
.shot img {
  width: 100%; aspect-ratio: 9 / 16; object-fit: cover; object-position: 50% 40%;
  border-radius: 22px; border: 1px solid rgba(127, 224, 190, 0.2); background: var(--water);
}
.shot h3 { margin-top: 16px; font-size: 1.0625rem; font-weight: 700; }
.shot p { margin-top: 6px; color: var(--text-dim); font-size: 0.9375rem; line-height: 1.8; }
@media (min-width: 900px) {
  .rail {
    max-width: 1120px; margin-inline: auto; overflow: visible;
    grid-auto-flow: row; grid-template-columns: repeat(3, minmax(0, 1fr)); grid-auto-columns: auto;
    column-gap: 40px; row-gap: 56px;
  }
}

/* 料金 */
.price { background: var(--deep); }
.price__free { margin: 20px 0 14px; font-size: clamp(1.3rem, 5vw, 1.6rem); font-weight: 800; color: var(--mint); }
.price__text { max-width: 34em; }
.price__grid { display: grid; gap: 48px; align-items: center; }
.price__phone { position: relative; margin: 0; justify-self: center; }
.phone {
  width: min(260px, 66vw); aspect-ratio: 780 / 1688; border-radius: 38px; overflow: hidden;
  border: 7px solid #173f41; background: #0b1c20;
  box-shadow: 0 0 0 1px rgba(127, 224, 190, 0.28), 0 30px 60px rgba(0, 0, 0, 0.4);
  transform: rotate(-4deg);
}
.phone img { width: 100%; height: 100%; object-fit: cover; }
.free-badge {
  position: absolute; top: -18px; right: -34px; width: 124px; height: 124px; margin: 0;
  display: grid; place-content: center; text-align: center; border-radius: 50%;
  background: var(--mint); color: var(--deep); transform: rotate(10deg);
  box-shadow: 0 0 0 5px rgba(127, 224, 190, 0.25), 0 14px 28px rgba(0, 0, 0, 0.35);
}
.free-badge__en { font-family: var(--font-num); font-weight: 600; font-size: 2.2rem; line-height: 1; letter-spacing: 0.04em; }
.free-badge__ja { margin-top: 4px; font-size: 0.6875rem; font-weight: 800; }
@media (min-width: 900px) {
  .price__grid { grid-template-columns: minmax(0, 1fr) 380px; gap: 64px; }
  .phone { width: 280px; }
}

/* お知らせ */
.news { background: var(--deep); }
.news__list { list-style: none; margin: 32px 0 0; padding: 0; }
.news__item { padding-block: 22px; border-top: 1px solid rgba(127, 224, 190, 0.18); }
.news__item:last-child { border-bottom: 1px solid rgba(127, 224, 190, 0.18); }
.news__head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 14px; }
.news__date { font-family: var(--font-num); font-weight: 500; font-size: 1rem; letter-spacing: 0.04em; color: var(--text-dim); }
.news__cat { font-size: 0.75rem; font-weight: 700; color: var(--mint); border: 1px solid var(--mint-soft); border-radius: 999px; padding: 1px 10px; }
.news__title { flex-basis: 100%; font-size: 1.0625rem; font-weight: 700; }
.news__title a { color: var(--text); text-decoration: none; }
.news__title a:hover { text-decoration: underline; }
.news__body { margin-top: 10px; max-width: 40em; color: var(--text-dim); font-size: 0.9375rem; }
.news__body p + p { margin-top: 8px; }
.news__links { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 0.9375rem; }
.news__more { margin-top: 20px; }
.news--page { min-height: 70vh; padding-top: 40px; }
.crumb { font-size: 0.875rem; margin-bottom: 12px; }

/* よくある質問 */
.faq { background: linear-gradient(180deg, var(--deep) 0%, #0b3033 100%); }
.faq__list { margin-top: 32px; }
.faq details { border-top: 1px solid rgba(127, 224, 190, 0.18); }
.faq details:last-child { border-bottom: 1px solid rgba(127, 224, 190, 0.18); }
.faq summary {
  list-style: none; cursor: pointer; position: relative;
  padding: 18px 40px 18px 0; font-weight: 700;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 8px; top: 50%; width: 12px; height: 12px; margin-top: -8px;
  border-right: 2px solid var(--mint); border-bottom: 2px solid var(--mint); transform: rotate(45deg);
}
.faq details[open] summary::after { transform: rotate(225deg); margin-top: -2px; }
@media (prefers-reduced-motion: no-preference) { .faq summary::after { transition: transform 0.2s ease, margin-top 0.2s ease; } }
.faq details p { padding: 0 0 20px; max-width: 52em; color: var(--text-dim); font-size: 0.9375rem; }

/* ダウンロード */
.download {
  padding-block: 88px;
  background:
    radial-gradient(60% 80% at 50% 0%, rgba(127, 224, 190, 0.16), transparent 70%),
    var(--water);
  text-align: center;
}
.download__inner { display: grid; justify-items: center; }
.download__icon { width: 96px; height: 96px; border-radius: 22px; box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35); }
.download__title { margin-top: 18px; font-family: var(--font-num); font-weight: 600; font-size: 2rem; letter-spacing: 0.01em; }
.download__meta { margin-top: 4px; color: var(--mint); font-weight: 700; }
.download__devices { margin-top: 16px; color: var(--text-dim); font-size: 0.875rem; }

/* フッター */
.foot { padding-block: 48px calc(48px + env(safe-area-inset-bottom)); background: #061c1e; color: var(--text-dim); font-size: 0.875rem; }
.foot__inner { display: grid; gap: 18px; }
.foot__logo img { width: 116px; height: auto; opacity: 0.9; }
.foot__nav, .foot__social { display: flex; flex-wrap: wrap; gap: 6px 22px; }
.foot__nav a, .foot__social a { color: var(--text); text-decoration: none; }
.foot__nav a:hover, .foot__social a:hover { text-decoration: underline; }
.foot__legal, .foot__copy { font-size: 0.75rem; }

/* 泳ぐ・揺れる動き */
@keyframes bob { 0%, 100% { translate: 0 0; } 50% { translate: 0 -8px; } }
/* 登場する魚（リールの C07 のパレード。淡水は緑、海水は青の水） */
.species { padding-top: 80px; background: var(--deep); }
.species__head { padding-bottom: 36px; }
.school { position: relative; padding-block: 36px 56px; overflow: hidden; }
.school--fresh { background: #0a2a27 url("/assets/img/water-fresh.webp") center top / cover no-repeat; }
.school--sea { background: #061f2b url("/assets/img/water-sea.webp") center top / cover no-repeat; }
.school .wrap { position: relative; }
.school__title { font-size: 1.25rem; font-weight: 800; color: var(--mint); }
.school--sea .school__title { color: #a6dcf2; }
.school__list { list-style: none; margin: 24px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px 18px; align-items: start; }
.fish { text-align: center; }
.fish--s96 { --w: 96%; }
.fish--s70 { --w: 70%; }
.fish--s72 { --w: 72%; }
.fish img { width: var(--w, 100%); margin-inline: auto; filter: drop-shadow(0 16px 14px rgba(0, 0, 0, 0.35)); animation: bob 5s ease-in-out infinite; }
.fish:nth-child(2n) img { animation-delay: -1.7s; }
.fish:nth-child(3n) img { animation-delay: -3.2s; }
.fish__name { margin-top: 12px; font-weight: 700; font-size: 0.9375rem; }
.fish__tag { display: inline-block; margin-top: 6px; font-size: 0.75rem; font-weight: 700; color: var(--mint); border: 1px solid var(--mint-soft); border-radius: 999px; padding: 0 10px; }
.school--sea .fish__tag { color: #a6dcf2; border-color: rgba(166, 220, 242, 0.32); }
.school--fresh .fish:last-child { grid-column: 1 / -1; width: 50%; justify-self: center; }
@media (min-width: 900px) {
  .school { padding-block: 44px 72px; }
  .school__list { grid-template-columns: repeat(5, minmax(0, 1fr)); column-gap: 28px; }
  .school--sea .school__list { grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: 40px; }
  .school--fresh .fish:last-child { grid-column: auto; width: auto; }
  .fish:nth-child(2n) { margin-top: 56px; }
}

/* メジャーボードに乗せたバス（板の幅 = 100cm なので、48.5cm の魚は幅の 48.5%） */
.board__catch { position: relative; margin: -6px 0 0; border-left: 3px solid var(--board-red); }
@media (min-width: 900px) { .board__catch { margin-top: -26px; } }
.board__catch img { width: 51.6%; margin-left: -1.5%; transform: scaleX(-1); filter: drop-shadow(0 10px 10px rgba(10, 42, 46, 0.28)); }
.board__catch::after { content: ""; position: absolute; left: 48.5%; top: -14px; bottom: 8%; width: 2px; background: var(--board-red); }
.board__len { position: absolute; left: calc(48.5% + 14px); top: 28%; font-family: var(--font-num); font-weight: 500; font-size: clamp(1rem, 2.6vw, 1.5rem); line-height: 1; color: var(--board-ink-dim); }
.board__len span { font-weight: 600; font-size: clamp(2rem, 7vw, 3.6rem); color: var(--board-ink); margin-right: 2px; }

/* 飾り */
.decor { background: linear-gradient(180deg, #0b3033 0%, var(--deep) 100%); }
.decor__tanks { margin-top: 36px; display: grid; gap: 12px; }
.tankshot { margin: 0; }
.tankshot img { width: 100%; }
.tankshot figcaption { margin-top: -6px; text-align: center; color: var(--text-dim); font-size: 0.875rem; font-weight: 700; }
.decor__grid { list-style: none; margin: 48px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px 12px; }
.deco { position: relative; text-align: center; }
.deco::before {
  content: ""; position: absolute; left: 50%; top: 84px; width: 74%; height: 16px; translate: -50% 0;
  background: radial-gradient(closest-side, rgba(0, 0, 0, 0.5), transparent);
}
.deco--paid::before { background: radial-gradient(closest-side, rgba(232, 196, 120, 0.42), transparent); }
.deco img { position: relative; height: 96px; width: auto; max-width: 100%; margin-inline: auto; object-fit: contain; object-position: bottom; }
.deco p { margin-top: 12px; font-size: 0.875rem; font-weight: 700; }
/* 有料の飾り：アプリの売り場と同じ真鍮色のバッジと価格（app.uss の .decor-paid-badge） */
.deco__paid { display: inline-block; margin-top: 6px; height: 20px; padding: 0 8px; border-radius: 10px; background: var(--brass); color: var(--brass-ink); font-size: 0.6875rem; font-weight: 700; line-height: 20px; vertical-align: middle; }
.deco__price { display: inline-block; margin: 6px 0 0 6px; color: var(--brass); font-family: var(--font-num); font-weight: 600; font-size: 1rem; vertical-align: middle; }
.decor__note { margin-top: 32px; max-width: 46em; color: var(--text-dim); font-size: 0.8125rem; }
@media (min-width: 700px) { .decor__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (min-width: 900px) {
  .decor__tanks { grid-template-columns: 1fr 1fr; gap: 32px; }
  .decor__grid { grid-template-columns: repeat(6, minmax(0, 1fr)); row-gap: 40px; }
  .deco img { height: 120px; }
  .deco::before { top: 106px; }
}

/* ダウンロード欄：ヒーローと同じ水中で、上の方をバスが泳ぐ */
.download { position: relative; overflow: hidden; padding-top: 170px; }
.download__scene { position: absolute; inset: 0; }
.download__canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; opacity: 0; transition: opacity 0.9s ease; }
.download__scene.is-live .download__canvas { opacity: 1; }
.download__inner { position: relative; z-index: 1; }

@media (prefers-reduced-motion: reduce) {
  .fish img, .bar__eq i { animation: none; }
}