/* L05 · 五种代词 · 布局重设计 */
@import url("https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,600;12..96,700;12..96,800&family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap");

:root {
  --ink: #0f2a2e;
  --muted: #5b7378;
  --soft: #e8f3f1;
  --paper: #f4faf8;
  --surface: rgba(255, 255, 255, 0.78);
  --line: rgba(15, 42, 46, 0.1);
  --teal: #0f8f86;
  --teal-deep: #0a6b65;
  --mint: #2ec4b6;
  --sand: #f0b429;
  --coral: #e85d4c;
  --ok: #1f9d6a;
  --bad: #d64545;
  --shadow: 0 18px 40px rgba(10, 50, 55, 0.12);
  --r: 22px;
  --font: "Plus Jakarta Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  --display: "Bricolage Grotesque", "Plus Jakarta Sans", sans-serif;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --nav-h: 68px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(46, 196, 182, 0.28), transparent 55%),
    radial-gradient(ellipse 70% 45% at 100% 0%, rgba(240, 180, 41, 0.18), transparent 50%),
    radial-gradient(ellipse 60% 40% at 50% 100%, rgba(15, 143, 134, 0.12), transparent 55%),
    linear-gradient(165deg, #d9f2ef 0%, #eef8f5 40%, #f7faf9 100%);
  background-attachment: fixed;
  -webkit-tap-highlight-color: transparent;
}
body { padding-bottom: calc(var(--nav-h) + var(--safe-b) + 12px); }

.pr-shell {
  width: min(980px, 100%);
  margin: 0 auto;
  padding: 0.65rem 0.9rem 1.25rem;
}

/* —— Top bar —— */
.pr-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
  animation: pr-fade 0.5s ease both;
}
.pr-top a.back {
  color: var(--muted);
  font-weight: 700;
  text-decoration: none;
  font-size: 0.84rem;
  letter-spacing: 0.01em;
}
.pr-top a.back:hover { color: var(--teal-deep); }
.pr-logo {
  height: 34px;
  width: auto;
  display: block;
  filter: drop-shadow(0 2px 6px rgba(10, 50, 55, 0.12));
}

@keyframes pr-fade {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
@keyframes pr-ken {
  from { transform: scale(1.01); }
  to { transform: scale(1.06); }
}
@keyframes pr-rise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}
@keyframes pr-glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(15, 143, 134, 0.35); }
  50% { box-shadow: 0 0 0 12px rgba(15, 143, 134, 0); }
}

/* —— Home hero: one composition —— */
.pr-hero {
  position: relative;
  margin: 0 -0.9rem 1.1rem;
  min-height: min(58vh, 420px);
  overflow: hidden;
  isolation: isolate;
  animation: pr-rise 0.6s cubic-bezier(0.2, 0.85, 0.2, 1);
}
@media (min-width: 720px) {
  .pr-hero {
    margin: 0 0 1.25rem;
    border-radius: 28px;
    min-height: min(52vh, 400px);
    box-shadow: var(--shadow);
  }
}
.pr-hero img {
  width: 100%;
  height: min(58vh, 420px);
  object-fit: cover;
  display: block;
  animation: pr-ken 14s ease-in-out infinite alternate;
}
@media (min-width: 720px) {
  .pr-hero img { height: min(52vh, 400px); }
}
.pr-hero__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(8, 35, 40, 0.15) 0%, rgba(8, 35, 40, 0.55) 48%, rgba(8, 35, 40, 0.88) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.4rem 1.25rem 1.55rem;
  color: #fff;
}
.pr-brand {
  font-family: var(--display);
  font-size: clamp(1.05rem, 3.2vw, 1.35rem);
  font-weight: 800;
  letter-spacing: 0.04em;
  margin: 0 0 0.35rem;
  opacity: 0.95;
}
.pr-hero__veil h1 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.85rem, 6.2vw, 2.65rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  max-width: 12ch;
}
.pr-hero__veil p {
  margin: 0.55rem 0 0;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.45;
  opacity: 0.9;
  max-width: 34ch;
}
.pr-hero__cta {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
}
.pr-hero__cta .pr-btn {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
}

/* —— Sections without card clutter —— */
.pr-section {
  margin-bottom: 1.35rem;
  animation: pr-rise 0.45s ease both;
}
.pr-section__title {
  margin: 0 0 0.2rem;
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.pr-section__lead {
  margin: 0 0 0.85rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--muted);
  line-height: 1.5;
}

/* Level segmented */
.pr-level {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.35rem;
  padding: 0.3rem;
  background: rgba(255, 255, 255, 0.65);
  border-radius: 18px;
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.pr-level button {
  appearance: none;
  border: 0;
  background: transparent;
  border-radius: 14px;
  padding: 0.75rem 0.35rem;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s, color 0.2s, transform 0.15s;
}
.pr-level button:hover { transform: translateY(-1px); }
.pr-level button.on {
  background: linear-gradient(160deg, var(--teal), var(--teal-deep));
  color: #fff;
  box-shadow: 0 8px 20px rgba(15, 143, 134, 0.28);
}
.pr-level .lv {
  display: block;
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.02rem;
}
.pr-level .hint {
  display: block;
  font-size: 0.68rem;
  font-weight: 600;
  opacity: 0.72;
  margin-top: 0.2rem;
}
.pr-level button.on .hint { opacity: 0.88; }

/* Journey stages — interaction list, not decorative cards */
.pr-stages {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.pr-stage {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.85rem;
  align-items: center;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  border-radius: 16px;
  padding: 0.85rem 0.55rem;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.18s, transform 0.15s;
  border-bottom: 1px solid var(--line);
}
.pr-stage:last-child { border-bottom: 0; }
.pr-stage:hover {
  background: rgba(255, 255, 255, 0.55);
  transform: translateX(4px);
}
.pr-stage .num {
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--teal);
  width: 2.2rem;
}
.pr-stage .body strong {
  display: block;
  font-size: 1rem;
  font-weight: 800;
  color: var(--ink);
}
.pr-stage .body span {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  margin-top: 0.12rem;
}
.pr-stage .arrow {
  color: var(--teal);
  font-weight: 800;
  font-size: 1.1rem;
  opacity: 0.55;
}

.pr-view { display: none; }
.pr-view.on { display: block; animation: pr-rise 0.35s ease; }

/* —— View header —— */
.pr-view-hd {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.pr-view-hd button.ghost {
  appearance: none;
  border: 0;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  padding: 0.42rem 0.9rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  color: var(--muted);
  font-size: 0.82rem;
  border: 1px solid var(--line);
}
.pr-view-hd h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.2rem, 3.5vw, 1.45rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.pr-view-hd .chip {
  margin-left: auto;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  background: rgba(15, 143, 134, 0.12);
  color: var(--teal-deep);
}

/* —— Type tabs —— */
.pr-type-tabs {
  display: flex;
  gap: 0.15rem;
  margin-bottom: 1rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0.25rem;
  border-bottom: 2px solid rgba(15, 42, 46, 0.08);
}
.pr-type-tabs button {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0.55rem 0.85rem;
  font-family: inherit;
  font-weight: 700;
  font-size: 0.86rem;
  cursor: pointer;
  color: var(--muted);
  white-space: nowrap;
  position: relative;
  border-radius: 10px 10px 0 0;
}
.pr-type-tabs button.on {
  color: var(--teal-deep);
}
.pr-type-tabs button.on::after {
  content: "";
  position: absolute;
  left: 0.55rem;
  right: 0.55rem;
  bottom: -2px;
  height: 3px;
  border-radius: 999px;
  background: var(--teal);
}

/* —— Teach scene —— */
.pr-scene-banner {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  margin-bottom: 1.1rem;
  min-height: 200px;
  box-shadow: var(--shadow);
}
.pr-scene-banner img {
  width: 100%;
  height: min(38vh, 300px);
  object-fit: cover;
  display: block;
}
.pr-scene-banner__meta {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.1rem 1.15rem;
  background: linear-gradient(180deg, transparent, rgba(8, 35, 40, 0.82));
  color: #fff;
}
.pr-scene-banner__meta .en {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.8;
}
.pr-scene-banner__meta h3 {
  margin: 0.2rem 0 0;
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 800;
}

.pr-forms {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 1.15rem;
}
.pr-form-pill {
  appearance: none;
  border: 0;
  background: rgba(255, 255, 255, 0.75);
  border-radius: 999px;
  padding: 0.42rem 0.85rem;
  font-family: inherit;
  font-weight: 800;
  font-size: 0.9rem;
  cursor: pointer;
  color: var(--teal-deep);
  box-shadow: inset 0 0 0 1px var(--line);
  transition: background 0.15s, transform 0.15s;
}
.pr-form-pill:hover {
  background: #fff;
  transform: translateY(-1px);
  box-shadow: inset 0 0 0 1.5px var(--teal);
}

/* Usage blocks — one purpose each */
.pr-usage {
  margin: 0 0 1.4rem;
  padding: 0;
  background: none;
  border: 0;
}
.pr-usage__head {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  margin-bottom: 0.35rem;
}
.pr-usage__idx {
  font-family: var(--display);
  font-weight: 800;
  color: var(--mint);
  font-size: 1.1rem;
}
.pr-usage h4 {
  margin: 0;
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 800;
}
.pr-usage > p {
  margin: 0 0 0.7rem;
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 600;
  line-height: 1.55;
}
.pr-usage-img {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  border-radius: 18px;
  margin: 0 0 0.75rem;
  display: block;
  background: #d7ebe8;
}

/* Reveal — soft, not dashed placeholders */
.pr-reveal-row {
  display: grid;
  gap: 0.4rem;
  margin-top: 0.35rem;
}
@media (min-width: 640px) {
  .pr-reveal-row { grid-template-columns: 1fr 1fr; }
}
.pr-reveal {
  appearance: none;
  width: 100%;
  text-align: left;
  border: 0;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 16px;
  padding: 0.85rem 1rem;
  cursor: pointer;
  font-family: inherit;
  min-height: 56px;
  box-shadow: inset 0 0 0 1px var(--line);
  transition: background 0.2s, box-shadow 0.2s, transform 0.15s;
}
.pr-reveal:hover {
  background: #fff;
  transform: translateY(-1px);
}
.pr-reveal .hint-txt {
  font-weight: 700;
  color: var(--teal);
  font-size: 0.86rem;
}
.pr-reveal .val {
  display: none;
  font-weight: 700;
  color: var(--ink);
  font-size: 1.05rem;
  line-height: 1.45;
}
.pr-reveal.is-open {
  background: #fff;
  box-shadow: inset 0 0 0 1.5px var(--mint), 0 8px 20px rgba(15, 143, 134, 0.08);
}
.pr-reveal.is-open .hint-txt { display: none; }
.pr-reveal.is-open .val { display: block; animation: pr-fade 0.25s ease; }
.pr-reveal.zh .val { color: var(--muted); font-size: 0.95rem; font-weight: 600; }

.pr-tts {
  appearance: none;
  border: 0;
  background: linear-gradient(145deg, var(--mint), var(--teal-deep));
  color: #fff;
  border-radius: 999px;
  padding: 0.5rem 1rem;
  font-weight: 800;
  font-family: inherit;
  cursor: pointer;
  font-size: 0.82rem;
  box-shadow: 0 6px 16px rgba(15, 143, 134, 0.25);
}
.pr-tts:disabled { opacity: 0.45; cursor: not-allowed; }
.pr-tts.playing {
  background: linear-gradient(145deg, var(--sand), var(--coral));
  animation: pr-glow 1.2s ease infinite;
}

/* Examples — visual-first rows */
.pr-ex-list { display: grid; gap: 1rem; }
.pr-ex-item {
  border: 0;
  border-radius: 20px;
  padding: 0;
  background: transparent;
  overflow: hidden;
}
.pr-ex-visual {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 0.85rem;
  align-items: stretch;
}
@media (max-width: 640px) {
  .pr-ex-visual { grid-template-columns: 1fr; }
}
.pr-ex-visual__img {
  border-radius: 18px;
  overflow: hidden;
  background: #d7ebe8;
  aspect-ratio: 4 / 3;
  min-height: 140px;
}
.pr-ex-visual__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.pr-ex-visual__body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0.15rem 0.1rem;
}
.pr-ex-item .meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.55rem;
}
.pr-ex-item .tag {
  font-family: var(--display);
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--teal-deep);
  background: none;
  padding: 0;
}
.pr-ex-item .tip {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  margin-top: 0.5rem;
  line-height: 1.45;
}

.pr-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.75rem;
  align-items: center;
}
.pr-btn {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 0.62rem 1.2rem;
  font-weight: 800;
  font-family: inherit;
  cursor: pointer;
  font-size: 0.9rem;
  background: linear-gradient(145deg, var(--mint), var(--teal-deep));
  color: #fff;
  transition: transform 0.15s, filter 0.15s;
}
.pr-btn:hover { transform: translateY(-1px); filter: brightness(1.05); }
.pr-btn.ghost {
  background: rgba(255, 255, 255, 0.75);
  color: var(--muted);
  box-shadow: inset 0 0 0 1px var(--line);
}
.pr-btn.amber {
  background: linear-gradient(145deg, var(--sand), #e09112);
  color: #1a1408;
}

/* Imitate */
.pr-imitate-stage {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}
.pr-imitate-hero {
  margin: 0;
  max-height: none;
  border: 0;
  border-radius: 0;
  background: #d7ebe8;
}
.pr-imitate-hero img {
  width: 100%;
  height: min(42vh, 320px);
  object-fit: cover;
  display: block;
}
.pr-audio-first {
  text-align: center;
  padding: 0.4rem 0.5rem 0.2rem;
}
.pr-audio-first .big-play {
  appearance: none;
  width: 92px;
  height: 92px;
  border-radius: 50%;
  border: 0;
  background: linear-gradient(145deg, var(--mint), var(--teal-deep));
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  box-shadow: 0 14px 32px rgba(15, 143, 134, 0.35);
  animation: pr-glow 2s ease infinite;
  font-family: inherit;
  margin-top: -46px;
  position: relative;
  z-index: 2;
}
.pr-audio-first .hint {
  margin: 0.75rem auto 0;
  font-weight: 600;
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 28ch;
  line-height: 1.5;
}
.pr-focus-pill {
  display: inline-block;
  margin-top: 0.55rem;
  font-weight: 800;
  font-size: 0.82rem;
  color: var(--teal-deep);
  background: rgba(15, 143, 134, 0.12);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
}

/* Quiz */
.pr-panel {
  background: rgba(255, 255, 255, 0.72);
  border-radius: 24px;
  padding: 1.1rem 1.05rem 1.2rem;
  box-shadow: inset 0 0 0 1px var(--line);
  backdrop-filter: blur(10px);
}
.pr-quiz-hd {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.pr-score {
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--teal-deep);
}
.pr-timer {
  font-family: var(--display);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--coral);
  font-size: 1.1rem;
}
.pr-q {
  font-family: var(--display);
  font-size: clamp(1.15rem, 3.2vw, 1.4rem);
  font-weight: 800;
  line-height: 1.4;
  margin: 0.2rem 0 1rem;
  letter-spacing: -0.01em;
}
.pr-opts { display: grid; gap: 0.5rem; }
.pr-opt {
  appearance: none;
  width: 100%;
  text-align: left;
  border: 0;
  background: #fff;
  border-radius: 16px;
  padding: 0.85rem 1rem;
  font-family: inherit;
  font-weight: 700;
  font-size: 0.98rem;
  cursor: pointer;
  box-shadow: inset 0 0 0 1px var(--line);
  transition: transform 0.12s, box-shadow 0.15s;
}
.pr-opt:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: inset 0 0 0 1.5px var(--teal);
}
.pr-opt.ok {
  background: #e8f8f0;
  box-shadow: inset 0 0 0 1.5px var(--ok);
  color: #146347;
}
.pr-opt.bad {
  background: #fdeeee;
  box-shadow: inset 0 0 0 1.5px var(--bad);
  color: #8f2a2a;
}
.pr-explain {
  margin-top: 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: 14px;
  background: rgba(240, 180, 41, 0.15);
  font-weight: 600;
  font-size: 0.9rem;
  color: #6b4e0b;
  display: none;
  line-height: 1.5;
}
.pr-explain.on { display: block; animation: pr-fade 0.25s ease; }

.pr-race-banner {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 0.9rem;
}
.pr-race-banner img {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 18px;
}
.pr-race-banner strong {
  font-family: var(--display);
  font-size: 1.05rem;
}

/* Table */
.pr-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 18px;
  box-shadow: inset 0 0 0 1px var(--line);
  background: rgba(255, 255, 255, 0.65);
}
.pr-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
  font-size: 0.88rem;
}
.pr-table th, .pr-table td {
  border-bottom: 1px solid var(--line);
  padding: 0.7rem 0.5rem;
  text-align: center;
  font-weight: 700;
}
.pr-table th {
  background: rgba(15, 143, 134, 0.12);
  color: var(--teal-deep);
  font-family: var(--display);
  position: sticky;
  top: 0;
}
.pr-table td:first-child, .pr-table th:first-child {
  text-align: left;
  padding-left: 0.85rem;
  white-space: nowrap;
}
.pr-table-reveal .pr-hideable,
.pr-table-reveal .pr-th-hideable {
  cursor: pointer;
  user-select: none;
  min-width: 3.2em;
}
.pr-table-reveal .pr-hideable.is-hidden,
.pr-table-reveal .pr-th-hideable:not(.is-open) {
  background: rgba(15, 42, 46, 0.06) !important;
  color: #8aa0a4;
}
.pr-table-reveal .pr-hideable.is-open,
.pr-table-reveal .pr-th-hideable.is-open {
  background: rgba(46, 196, 182, 0.14) !important;
  color: var(--teal-deep);
  animation: pr-fade 0.25s ease;
}
.pr-table-reveal .pr-cell-mask {
  display: inline-block;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #8aa0a4;
}
.pr-table-reveal .pr-cell-val {
  display: none;
  font-weight: 800;
}
/* 打开时只显示内容，隐藏 ? / ··· 遮罩（不能被 display:inline-block 盖住 hidden） */
.pr-table-reveal .is-open > .pr-cell-mask,
.pr-table-reveal .pr-hideable.is-open > .pr-cell-mask,
.pr-table-reveal .pr-th-hideable.is-open > .pr-cell-mask,
.pr-memory.is-open > .pr-cell-mask {
  display: none !important;
}
.pr-table-reveal .is-open > .pr-cell-val,
.pr-table-reveal .pr-hideable.is-open > .pr-cell-val,
.pr-table-reveal .pr-th-hideable.is-open > .pr-cell-val,
.pr-memory.is-open > .pr-cell-val {
  display: block !important;
}
.pr-table-reveal .is-hidden > .pr-cell-val,
.pr-memory.is-hidden > .pr-cell-val {
  display: none !important;
}
.pr-table-reveal .is-hidden > .pr-cell-mask,
.pr-memory.is-hidden > .pr-cell-mask {
  display: inline-block !important;
}
.pr-table-reveal th.pr-th-hideable.is-open {
  background: rgba(15, 143, 134, 0.18) !important;
}
.pr-memory {
  margin-top: 1rem;
  padding: 1rem 1.1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: inset 0 0 0 1px var(--line);
  font-weight: 700;
  line-height: 1.55;
  font-size: 0.95rem;
  cursor: pointer;
}
.pr-memory.is-hidden {
  background: rgba(15, 42, 46, 0.06);
  color: var(--muted);
  border-style: none;
}
.pr-memory.is-open {
  background: rgba(255, 255, 255, 0.85);
  color: var(--ink);
}
.pr-memory .pr-cell-mask { font-weight: 800; }

/* Footer dock */
.pr-footer-nav {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(10px + var(--safe-b));
  z-index: 120;
  width: min(520px, calc(100% - 5.5rem));
  padding: 0.4rem 0.35rem;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px) saturate(1.2);
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0 12px 32px rgba(10, 50, 55, 0.16);
  border-radius: 22px;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.1rem;
}
.pr-footer-nav button,
.pr-footer-nav a.pr-footer-link {
  appearance: none;
  border: 0;
  background: transparent;
  font-family: inherit;
  font-weight: 700;
  font-size: 0.62rem;
  color: var(--muted);
  padding: 0.4rem 0.15rem;
  border-radius: 14px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  line-height: 1.1;
  text-decoration: none;
}
.pr-footer-nav button .ico,
.pr-footer-nav a.pr-footer-link .ico {
  font-size: 1.05rem;
  line-height: 1;
}
.pr-footer-nav button.on,
.pr-footer-nav a.pr-footer-link:hover {
  background: rgba(15, 143, 134, 0.12);
  color: var(--teal-deep);
}

.pr-ds {
  margin-top: 0.85rem;
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 600;
}
.pr-ds button {
  appearance: none;
  border: 0;
  background: none;
  color: var(--teal);
  font-weight: 800;
  font-family: inherit;
  cursor: pointer;
  text-decoration: underline;
  padding: 0;
}

.pr-divider {
  height: 1px;
  background: var(--line);
  margin: 1.25rem 0;
  border: 0;
}

@media (max-width: 520px) {
  .pr-level { grid-template-columns: 1fr; }
  .pr-hero { min-height: min(48vh, 340px); }
  .pr-hero img { height: min(48vh, 340px); }
}