/* ============ PULSE SHOWCASE ============ */
  .pulse-scene {
    position: absolute;
    inset: 0;
    overflow: hidden;
    display: grid;
    place-items: center;
    border-radius: inherit;
    background: #10121a;
    isolation: isolate;
  }
  .pulse-scene::after {
    content: "";
    position: absolute;
    z-index: 2;
    inset: 0;
    background:
      radial-gradient(circle at 50% 48%, rgba(122,92,245,.13), transparent 36%),
      linear-gradient(180deg, rgba(8,10,18,.20), rgba(8,10,18,.58));
    pointer-events: none;
  }
  .pulse-backdrop {
    position: absolute;
    z-index: 1;
    inset: -3%;
    width: 106%;
    height: 106%;
    object-fit: cover;
    opacity: 0;
    filter: blur(5px) brightness(.56) saturate(.72);
    animation: pulse-backdrop-cycle 18s linear infinite;
    animation-delay: var(--pulse-delay);
  }
  .pulse-notification-stage {
    position: relative;
    z-index: 3;
    width: calc(100% - clamp(32px, 7vw, 64px));
    min-height: 210px;
  }
  .pulse-notification {
    position: absolute;
    inset: 0;
    min-height: 210px;
    display: grid;
    grid-template-columns: 62px minmax(0, 1fr) auto;
    gap: 14px;
    align-items: center;
    padding: 18px;
    color: #fff;
    background: rgba(37,42,57,.84);
    border-radius: 20px;
    box-shadow: 0 24px 48px -26px rgba(0,0,0,.88), inset 0 1px rgba(255,255,255,.16);
    backdrop-filter: blur(24px) saturate(1.2);
    -webkit-backdrop-filter: blur(24px) saturate(1.2);
    opacity: 0;
    transform: translateY(18px) scale(.975);
    filter: blur(9px);
    animation: pulse-notification-cycle 18s cubic-bezier(.16,1,.3,1) infinite;
    animation-delay: var(--pulse-delay);
  }
  .pulse-app-icon {
    position: relative;
    width: 62px;
    height: 62px;
    border-radius: 16px;
  }
  .pulse-app-icon > img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    border-radius: inherit;
  }
  .pulse-message-badge {
    position: absolute;
    right: -5px;
    bottom: -5px;
    width: 29px;
    height: 29px;
    display: grid;
    place-items: center;
    border: 2px solid rgba(37,42,57,.92);
    border-radius: 9px;
    background: #37d55b;
  }
  .pulse-message-badge::after {
    content: "";
    width: 15px;
    height: 11px;
    border-radius: 999px;
    background: #fff;
    box-shadow: 4px 6px 0 -4px #fff;
  }
  .pulse-message-body {
    min-width: 0;
  }
  .pulse-message-title {
    display: block;
    margin-bottom: 5px;
    font-size: clamp(17px, 1.5vw, 19px);
    font-weight: 600;
    letter-spacing: -.02em;
  }
  .pulse-message-copy {
    margin: 0;
    max-width: 60ch;
    font-size: clamp(13px, 1.15vw, 15px);
    line-height: 1.42;
    text-wrap: pretty;
  }
  .pulse-message-time {
    align-self: start;
    padding-top: 3px;
    color: rgba(255,255,255,.54);
    font-size: 13px;
    font-weight: 500;
  }
  @keyframes pulse-backdrop-cycle {
    0%, 28% { opacity: 1; transform: scale(1.035); }
    34%, 94% { opacity: 0; transform: scale(1.09); }
    100% { opacity: 1; transform: scale(1.035); }
  }
  @keyframes pulse-notification-cycle {
    0%, 28% { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
    34%, 94% { opacity: 0; transform: translateY(-14px) scale(.985); filter: blur(9px); }
    100% { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
  }
  @media (max-width: 640px) {
    .pulse-notification-stage {
      width: calc(100% - 32px);
      min-height: 190px;
    }
    .pulse-notification {
      min-height: 190px;
      grid-template-columns: 46px minmax(0, 1fr);
      gap: 12px;
      align-items: start;
      padding: 16px;
      border-radius: 16px;
    }
    .pulse-app-icon { width: 46px; height: 46px; border-radius: 12px; }
    .pulse-message-badge { width: 23px; height: 23px; border-radius: 7px; }
    .pulse-message-badge::after { width: 12px; height: 9px; }
    .pulse-message-title { font-size: 16px; }
    .pulse-message-copy { font-size: 12.5px; line-height: 1.35; }
    .pulse-message-time {
      position: absolute;
      top: 16px;
      right: 16px;
      font-size: 12px;
    }
  }
  @media (prefers-reduced-motion: reduce) {
    .pulse-backdrop,
    .pulse-notification { animation: none; }
    .pulse-backdrop:first-of-type { opacity: 1; transform: scale(1.035); }
    .pulse-notification:first-child { opacity: 1; transform: none; filter: none; }
  }

/* ============ PULSE STORY ============ */
  .pulse-story {
    background: #10131b;
  }
  .pulse-story::after {
    background:
      radial-gradient(circle at 24% 12%, rgba(122,92,245,.18), transparent 38%),
      linear-gradient(180deg, rgba(5,8,16,.22), rgba(5,8,16,.66));
  }
  .pulse-story-bg {
    position: absolute;
    z-index: 1;
    inset: -4%;
    width: 108%;
    height: 108%;
    object-fit: cover;
    opacity: 0;
    transform: scale(1.045);
    filter: blur(8px) brightness(.46) saturate(.82);
  }
  .pulse-story-bg:first-child {
    opacity: 1;
  }
  .pulse-story-glass {
    position: relative;
    z-index: 3;
    width: calc(100% - clamp(28px, 5vw, 48px));
    height: calc(100% - clamp(28px, 5vw, 48px));
    display: flex;
    flex-direction: column;
    padding: clamp(12px, 1.7vw, 16px);
    overflow: hidden;
    color: #fff;
    border: 1px solid rgba(255,255,255,.24);
    border-radius: clamp(26px, 4vw, 34px);
    background: linear-gradient(145deg, rgba(116,135,166,.34), rgba(20,28,45,.55));
    box-shadow:
      inset 0 1px rgba(255,255,255,.30),
      inset 0 -1px rgba(255,255,255,.08),
      inset 18px 18px 36px rgba(255,255,255,.025);
    backdrop-filter: blur(32px) saturate(1.48) brightness(1.04);
    -webkit-backdrop-filter: blur(32px) saturate(1.48) brightness(1.04);
    isolation: isolate;
  }
  .pulse-story-glass::before {
    content: "";
    position: absolute;
    z-index: -1;
    width: 72%;
    aspect-ratio: 1;
    top: -48%;
    left: -18%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,.22), rgba(255,255,255,0) 66%);
    transform: translate3d(0,0,0);
    pointer-events: none;
  }
  .pulse-story-header {
    flex: 0 0 auto;
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    padding: 0 2px 11px;
    border-bottom: 1px solid rgba(255,255,255,.14);
  }
  .pulse-story-app {
    position: relative;
    width: 38px;
    height: 38px;
  }
  .pulse-story-app > img {
    width: 100%;
    height: 100%;
    display: block;
    border-radius: 11px;
    object-fit: cover;
  }
  .pulse-story-badge {
    position: absolute;
    right: -4px;
    bottom: -4px;
    width: 17px;
    height: 17px;
    border: 2px solid rgba(45,55,76,.96);
    border-radius: 6px;
    background: #37d55b;
  }
  .pulse-story-badge::after {
    content: "";
    position: absolute;
    inset: 4px 3px;
    border-radius: 999px;
    background: #fff;
  }
  .pulse-story-identity {
    min-width: 0;
  }
  .pulse-story-identity strong,
  .pulse-story-identity small {
    display: block;
  }
  .pulse-story-identity strong {
    font-size: 15px;
    line-height: 1.2;
    letter-spacing: -.01em;
  }
  .pulse-story-identity small {
    margin-top: 2px;
    color: rgba(255,255,255,.60);
    font-size: 10.5px;
    line-height: 1.2;
  }
  .pulse-story-time {
    align-self: start;
    padding-top: 3px;
    color: rgba(255,255,255,.55);
    font-size: 11px;
    font-weight: 500;
  }
  .pulse-story-feed {
    min-height: 0;
    display: flex;
    flex: 1;
    flex-direction: column;
    justify-content: center;
    gap: clamp(5px, .8vw, 8px);
    padding-top: clamp(8px, 1.2vw, 12px);
  }
  .pulse-story-item {
    flex: 0 0 auto;
    opacity: 1;
    transform: none;
    filter: none;
  }
  .pulse-story-bubble {
    width: fit-content;
    max-width: 88%;
    padding: 9px 12px;
    border-radius: 15px 15px 15px 5px;
    background: rgba(255,255,255,.17);
    box-shadow: inset 0 1px rgba(255,255,255,.13);
    font-size: clamp(11.5px, 1.05vw, 13.5px);
    line-height: 1.38;
    text-wrap: pretty;
  }
  .pulse-story-source {
    min-height: clamp(64px, 6.5vw, 76px);
    display: grid;
    grid-template-columns: clamp(64px, 7.3vw, 82px) minmax(0, 1fr);
    gap: 10px;
    align-items: center;
    padding: 6px;
    border-radius: 15px;
    background: rgba(241,246,255,.15);
    box-shadow: inset 0 1px rgba(255,255,255,.13);
  }
  .pulse-story-source > img {
    width: 100%;
    height: 100%;
    min-height: 52px;
    max-height: 64px;
    display: block;
    border-radius: 10px;
    object-fit: cover;
  }
  .pulse-story-source-copy {
    min-width: 0;
    padding-right: 6px;
  }
  .pulse-story-source-meta {
    display: block;
    margin-bottom: 3px;
    color: rgba(255,255,255,.62);
    font-size: clamp(9px, .8vw, 10.5px);
    font-weight: 600;
    line-height: 1.2;
  }
  .pulse-story-source-title {
    display: -webkit-box;
    overflow: hidden;
    color: #fff;
    font-size: clamp(11.5px, 1.1vw, 14px);
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -.01em;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }
  .pulse-story-summary .pulse-story-bubble {
    max-width: 94%;
    background: rgba(134,106,248,.30);
    box-shadow:
      inset 0 1px rgba(255,255,255,.18),
      0 0 0 1px rgba(169,148,255,.16);
  }
  .pulse-story-summary strong {
    font-weight: 650;
  }
  .split-feature.is-visible .pulse-story-bg-one {
    animation: pulse-story-bg-one 20s linear infinite;
  }
  .split-feature.is-visible .pulse-story-bg-two {
    animation: pulse-story-bg-two 20s linear infinite;
  }
  .split-feature.is-visible .pulse-story-bg-three {
    animation: pulse-story-bg-three 20s linear infinite;
  }
  .split-feature.is-visible .pulse-story-glass::before {
    animation: pulse-story-light 9s cubic-bezier(.45,0,.2,1) infinite alternate;
  }
  .split-feature.is-visible .pulse-story-intro {
    animation: pulse-story-step-one 20s cubic-bezier(.16,1,.3,1) infinite;
  }
  .split-feature.is-visible .pulse-story-source-one {
    animation: pulse-story-step-two 20s cubic-bezier(.16,1,.3,1) infinite;
  }
  .split-feature.is-visible .pulse-story-source-two {
    animation: pulse-story-step-three 20s cubic-bezier(.16,1,.3,1) infinite;
  }
  .split-feature.is-visible .pulse-story-source-three {
    animation: pulse-story-step-four 20s cubic-bezier(.16,1,.3,1) infinite;
  }
  .split-feature.is-visible .pulse-story-summary {
    animation: pulse-story-step-five 20s cubic-bezier(.16,1,.3,1) infinite;
  }
  @keyframes pulse-story-bg-one {
    0%, 29% { opacity: 1; transform: scale(1.045); }
    35%, 94% { opacity: 0; transform: scale(1.10); }
    100% { opacity: 1; transform: scale(1.045); }
  }
  @keyframes pulse-story-bg-two {
    0%, 29% { opacity: 0; transform: scale(1.08); }
    35%, 57% { opacity: 1; transform: scale(1.045); }
    63%, 100% { opacity: 0; transform: scale(1.10); }
  }
  @keyframes pulse-story-bg-three {
    0%, 57% { opacity: 0; transform: scale(1.08); }
    63%, 94% { opacity: 1; transform: scale(1.045); }
    100% { opacity: 0; transform: scale(1.08); }
  }
  @keyframes pulse-story-light {
    from { transform: translate3d(0,0,0) scale(1); opacity: .7; }
    to { transform: translate3d(44%,26%,0) scale(1.12); opacity: 1; }
  }
  @keyframes pulse-story-step-one {
    0% { opacity: 0; transform: translateY(10px) scale(.985); filter: blur(4px); }
    4%, 91% { opacity: 1; transform: none; filter: none; }
    96%, 100% { opacity: 0; transform: translateY(-6px); filter: blur(3px); }
  }
  @keyframes pulse-story-step-two {
    0%, 18% { opacity: 0; transform: translateY(12px) scale(.985); filter: blur(4px); }
    22%, 91% { opacity: 1; transform: none; filter: none; }
    96%, 100% { opacity: 0; transform: translateY(-6px); filter: blur(3px); }
  }
  @keyframes pulse-story-step-three {
    0%, 34% { opacity: 0; transform: translateY(12px) scale(.985); filter: blur(4px); }
    38%, 91% { opacity: 1; transform: none; filter: none; }
    96%, 100% { opacity: 0; transform: translateY(-6px); filter: blur(3px); }
  }
  @keyframes pulse-story-step-four {
    0%, 50% { opacity: 0; transform: translateY(12px) scale(.985); filter: blur(4px); }
    54%, 91% { opacity: 1; transform: none; filter: none; }
    96%, 100% { opacity: 0; transform: translateY(-6px); filter: blur(3px); }
  }
  @keyframes pulse-story-step-five {
    0%, 66% { opacity: 0; transform: translateY(12px) scale(.985); filter: blur(4px); }
    70%, 91% { opacity: 1; transform: none; filter: none; }
    96%, 100% { opacity: 0; transform: translateY(-6px); filter: blur(3px); }
  }
  @media (max-width: 640px) {
    .split-feature.is-flip .split-media {
      min-height: 390px;
      aspect-ratio: auto;
    }
    .pulse-story-glass {
      width: calc(100% - 24px);
      height: calc(100% - 24px);
      padding: 11px;
      border-radius: 26px;
    }
    .pulse-story-header {
      grid-template-columns: 34px minmax(0, 1fr) auto;
      padding-bottom: 8px;
    }
    .pulse-story-app { width: 34px; height: 34px; }
    .pulse-story-identity strong { font-size: 14px; }
    .pulse-story-identity small { font-size: 9.5px; }
    .pulse-story-feed { gap: 5px; padding-top: 7px; }
    .pulse-story-bubble { max-width: 94%; padding: 7px 9px; font-size: 11px; }
    .pulse-story-source {
      min-height: 54px;
      grid-template-columns: 58px minmax(0, 1fr);
      gap: 8px;
      padding: 5px;
      border-radius: 13px;
    }
    .pulse-story-source > img { min-height: 44px; max-height: 48px; border-radius: 8px; }
    .pulse-story-source-meta { margin-bottom: 2px; font-size: 8.5px; }
    .pulse-story-source-title { font-size: 11px; }
  }
  @media (prefers-reduced-motion: reduce) {
    .pulse-story-bg,
    .pulse-story-glass::before,
    .pulse-story-item {
      animation: none !important;
    }
    .pulse-story-bg { opacity: 0; transform: scale(1.045); }
    .pulse-story-bg:first-child { opacity: 1; }
    .pulse-story-item { opacity: 1; transform: none; filter: none; }
  }

/* ============ CENTERED PULSE MESSAGES ============ */
  .pulse-message-bg {
    position: absolute;
    z-index: 1;
    inset: -4%;
    width: 108%;
    height: 108%;
    object-fit: cover;
    opacity: 0;
    transform: scale(1.05);
    filter: blur(8px) brightness(.48) saturate(.86);
  }
  .pulse-message-bg:first-child {
    opacity: 1;
  }
  .pulse-message-deck {
    position: relative;
    z-index: 3;
    width: 100%;
    height: 100%;
    display: grid;
    place-items: center;
    padding: clamp(20px, 4vw, 40px);
  }
  .pulse-message {
    grid-area: 1 / 1;
    width: min(100%, 540px);
    min-height: clamp(112px, 12vw, 134px);
    display: grid;
    grid-template-columns: clamp(58px, 7vw, 72px) minmax(0, 1fr) auto;
    gap: clamp(12px, 1.5vw, 16px);
    align-items: center;
    padding: clamp(14px, 1.8vw, 19px);
    overflow: hidden;
    color: #fff;
    border: 1px solid rgba(255,255,255,.27);
    border-radius: clamp(24px, 4vw, 30px);
    background: linear-gradient(140deg, rgba(112,136,169,.48), rgba(31,42,63,.76));
    box-shadow:
      inset 0 1px rgba(255,255,255,.34),
      inset 0 -1px rgba(255,255,255,.07),
      inset 16px 14px 32px rgba(255,255,255,.025);
    backdrop-filter: blur(28px) saturate(1.45) brightness(1.05);
    -webkit-backdrop-filter: blur(28px) saturate(1.45) brightness(1.05);
    opacity: 0;
    transform: translateY(14px) scale(.985);
    filter: blur(5px);
  }
  .pulse-message:first-child {
    opacity: 1;
    transform: none;
    filter: none;
  }
  .pulse-message-thumb {
    position: relative;
    width: clamp(58px, 7vw, 72px);
    height: clamp(58px, 7vw, 72px);
  }
  .pulse-message-thumb > img {
    width: 100%;
    height: 100%;
    display: block;
    border-radius: clamp(14px, 2vw, 18px);
    object-fit: cover;
  }
  .pulse-message-badge {
    position: absolute;
    right: -5px;
    bottom: -5px;
    width: 24px;
    height: 24px;
    border: 2px solid rgba(48,59,80,.96);
    border-radius: 8px;
    background: #37d55b;
  }
  .pulse-message-badge::after {
    content: "";
    position: absolute;
    inset: 6px 4px;
    border-radius: 999px;
    background: #fff;
  }
  .pulse-message-copy {
    min-width: 0;
  }
  .pulse-message-copy strong,
  .pulse-message-copy span {
    display: block;
  }
  .pulse-message-copy strong {
    margin-bottom: 4px;
    font-size: clamp(16px, 1.7vw, 20px);
    font-weight: 650;
    line-height: 1.15;
    letter-spacing: -.02em;
  }
  .pulse-message-copy span {
    font-size: clamp(12.5px, 1.35vw, 16px);
    line-height: 1.34;
    text-wrap: pretty;
  }
  .pulse-message-time {
    align-self: start;
    padding-top: 2px;
    color: rgba(255,255,255,.55);
    font-size: clamp(11px, 1vw, 13px);
    font-weight: 500;
  }
  .split-feature.is-visible .pulse-message-bg,
  .split-feature.is-visible .pulse-message {
    animation: pulse-message-slot 10s cubic-bezier(.16,1,.3,1) infinite;
    animation-delay: var(--pulse-slot);
  }
  .split-feature.is-visible .pulse-message-bg {
    animation-name: pulse-message-bg-slot;
    animation-timing-function: linear;
  }
  @keyframes pulse-message-slot {
    0% { opacity: 0; transform: translateY(14px) scale(.985); filter: blur(5px); }
    3%, 17% { opacity: 1; transform: none; filter: none; }
    20%, 100% { opacity: 0; transform: translateY(-9px) scale(.99); filter: blur(4px); }
  }
  @keyframes pulse-message-bg-slot {
    0% { opacity: 0; transform: scale(1.08); }
    3%, 17% { opacity: 1; transform: scale(1.05); }
    20%, 100% { opacity: 0; transform: scale(1.10); }
  }
  @media (max-width: 640px) {
    .split-feature.is-flip .split-media {
      min-height: 0;
      aspect-ratio: 4 / 3;
    }
    .pulse-message-deck { padding: 16px; }
    .pulse-message {
      min-height: 104px;
      grid-template-columns: 50px minmax(0, 1fr);
      gap: 11px;
      padding: 13px;
      border-radius: 24px;
    }
    .pulse-message-thumb { width: 50px; height: 50px; }
    .pulse-message-thumb > img { border-radius: 13px; }
    .pulse-message-badge { width: 20px; height: 20px; border-radius: 7px; }
    .pulse-message-badge::after { inset: 5px 3px; }
    .pulse-message-copy strong { padding-right: 30px; font-size: 15px; }
    .pulse-message-copy span { font-size: 11.5px; line-height: 1.32; }
    .pulse-message-time {
      position: absolute;
      top: 14px;
      right: 14px;
      font-size: 10.5px;
    }
  }
  @media (prefers-reduced-motion: reduce) {
    .pulse-message-bg,
    .pulse-message {
      animation: none !important;
      opacity: 0;
      transform: none;
      filter: none;
    }
    .pulse-message-bg:last-of-type,
    .pulse-message:last-child {
      opacity: 1;
    }
  }

/* ============ STACKED PULSE THREAD ============ */
  .pulse-message-deck {
    --pulse-half: 42px;
    --pulse-step: 84px;
    --pulse-one-half: 126px;
    --pulse-two: 168px;
    position: relative;
    display: block;
    padding: 0;
  }
  .pulse-message {
    position: absolute;
    top: 50%;
    left: 50%;
    width: min(calc(100% - 40px), 520px);
    height: 76px;
    min-height: 0;
    grid-template-columns: 48px minmax(0, 1fr) auto;
    gap: 11px;
    padding: 10px 13px;
    border-radius: 21px;
    transform: translate(-50%, -50%) translateY(12px) scale(.985);
  }
  .pulse-message:first-child {
    transform: translate(-50%, -50%);
  }
  .pulse-message-thumb {
    width: 48px;
    height: 48px;
  }
  .pulse-message-thumb > img {
    border-radius: 13px;
  }
  .pulse-message-badge {
    width: 19px;
    height: 19px;
    right: -4px;
    bottom: -4px;
    border-radius: 6px;
  }
  .pulse-message-badge::after {
    inset: 2px;
    width: auto;
    height: auto;
    border-radius: 0;
    background: transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23fff' d='M12 3C6.48 3 2 6.72 2 11.3c0 2.55 1.39 4.84 3.58 6.36-.15 1.17-.72 2.34-1.68 3.34 2.08-.16 4-.81 5.45-1.72.84.21 1.73.32 2.65.32 5.52 0 10-3.72 10-8.3S17.52 3 12 3Z'/%3E%3C/svg%3E") center / contain no-repeat;
    box-shadow: none;
  }
  .pulse-message-copy strong {
    margin-bottom: 2px;
    font-size: clamp(13px, 1.3vw, 15.5px);
  }
  .pulse-message-copy span {
    display: -webkit-box;
    overflow: hidden;
    font-size: clamp(10.5px, 1vw, 12.5px);
    line-height: 1.28;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }
  .pulse-message-time {
    font-size: 10.5px;
  }
  .split-feature.is-visible .pulse-message-deck .pulse-message {
    animation-duration: 10s;
    animation-delay: 0s;
    animation-timing-function: cubic-bezier(.16,1,.3,1);
    animation-iteration-count: infinite;
  }
  .split-feature.is-visible .pulse-message-deck .pulse-message:nth-child(1) {
    animation-name: pulse-stack-one;
  }
  .split-feature.is-visible .pulse-message-deck .pulse-message:nth-child(2) {
    animation-name: pulse-stack-two;
  }
  .split-feature.is-visible .pulse-message-deck .pulse-message:nth-child(3) {
    animation-name: pulse-stack-three;
  }
  .split-feature.is-visible .pulse-message-deck .pulse-message:nth-child(4) {
    animation-name: pulse-stack-four;
  }
  .split-feature.is-visible .pulse-message-deck .pulse-message:nth-child(5) {
    animation-name: pulse-stack-five;
  }
  @keyframes pulse-stack-one {
    0% { opacity: 0; transform: translate(-50%, -50%) translateY(12px) scale(.985); filter: blur(5px); }
    3%, 18% { opacity: 1; transform: translate(-50%, -50%); filter: none; }
    22%, 38% { opacity: 1; transform: translate(-50%, -50%) translateY(calc(0px - var(--pulse-half))); filter: none; }
    42%, 58% { opacity: 1; transform: translate(-50%, -50%) translateY(calc(0px - var(--pulse-step))); filter: none; }
    62%, 78% { opacity: 1; transform: translate(-50%, -50%) translateY(calc(0px - var(--pulse-one-half))); filter: none; }
    82%, 94% { opacity: 1; transform: translate(-50%, -50%) translateY(calc(0px - var(--pulse-two))); filter: none; }
    98%, 100% { opacity: 0; transform: translate(-50%, -50%) translateY(calc(0px - var(--pulse-two))) scale(.99); filter: blur(4px); }
  }
  @keyframes pulse-stack-two {
    0%, 18% { opacity: 0; transform: translate(-50%, -50%) translateY(calc(var(--pulse-half) + 12px)) scale(.985); filter: blur(5px); }
    22%, 38% { opacity: 1; transform: translate(-50%, -50%) translateY(var(--pulse-half)); filter: none; }
    42%, 58% { opacity: 1; transform: translate(-50%, -50%); filter: none; }
    62%, 78% { opacity: 1; transform: translate(-50%, -50%) translateY(calc(0px - var(--pulse-half))); filter: none; }
    82%, 94% { opacity: 1; transform: translate(-50%, -50%) translateY(calc(0px - var(--pulse-step))); filter: none; }
    98%, 100% { opacity: 0; transform: translate(-50%, -50%) translateY(calc(0px - var(--pulse-step))) scale(.99); filter: blur(4px); }
  }
  @keyframes pulse-stack-three {
    0%, 38% { opacity: 0; transform: translate(-50%, -50%) translateY(calc(var(--pulse-step) + 12px)) scale(.985); filter: blur(5px); }
    42%, 58% { opacity: 1; transform: translate(-50%, -50%) translateY(var(--pulse-step)); filter: none; }
    62%, 78% { opacity: 1; transform: translate(-50%, -50%) translateY(var(--pulse-half)); filter: none; }
    82%, 94% { opacity: 1; transform: translate(-50%, -50%); filter: none; }
    98%, 100% { opacity: 0; transform: translate(-50%, -50%) scale(.99); filter: blur(4px); }
  }
  @keyframes pulse-stack-four {
    0%, 58% { opacity: 0; transform: translate(-50%, -50%) translateY(calc(var(--pulse-one-half) + 12px)) scale(.985); filter: blur(5px); }
    62%, 78% { opacity: 1; transform: translate(-50%, -50%) translateY(var(--pulse-one-half)); filter: none; }
    82%, 94% { opacity: 1; transform: translate(-50%, -50%) translateY(var(--pulse-step)); filter: none; }
    98%, 100% { opacity: 0; transform: translate(-50%, -50%) translateY(var(--pulse-step)) scale(.99); filter: blur(4px); }
  }
  @keyframes pulse-stack-five {
    0%, 78% { opacity: 0; transform: translate(-50%, -50%) translateY(calc(var(--pulse-two) + 12px)) scale(.985); filter: blur(5px); }
    82%, 94% { opacity: 1; transform: translate(-50%, -50%) translateY(var(--pulse-two)); filter: none; }
    98%, 100% { opacity: 0; transform: translate(-50%, -50%) translateY(var(--pulse-two)) scale(.99); filter: blur(4px); }
  }
  @media (max-width: 640px) {
    .split-feature.is-flip .split-media {
      min-height: 390px;
      aspect-ratio: auto;
    }
    .pulse-message-deck {
      --pulse-half: 37px;
      --pulse-step: 74px;
      --pulse-one-half: 111px;
      --pulse-two: 148px;
    }
    .pulse-message {
      width: calc(100% - 24px);
      height: 68px;
      grid-template-columns: 42px minmax(0, 1fr);
      gap: 9px;
      padding: 8px 10px;
      border-radius: 19px;
    }
    .pulse-message-thumb { width: 42px; height: 42px; }
    .pulse-message-thumb > img { border-radius: 11px; }
    .pulse-message-copy strong { padding-right: 26px; font-size: 13px; }
    .pulse-message-copy span { font-size: 10.5px; }
    .pulse-message-time { top: 10px; right: 10px; font-size: 9px; }
  }
  @media (prefers-reduced-motion: reduce) {
    .pulse-message-deck .pulse-message {
      animation: none !important;
      opacity: 1;
      filter: none;
    }
    .pulse-message-deck .pulse-message:nth-child(1) { transform: translate(-50%, -50%) translateY(calc(0px - var(--pulse-two))); }
    .pulse-message-deck .pulse-message:nth-child(2) { transform: translate(-50%, -50%) translateY(calc(0px - var(--pulse-step))); }
    .pulse-message-deck .pulse-message:nth-child(3) { transform: translate(-50%, -50%); }
    .pulse-message-deck .pulse-message:nth-child(4) { transform: translate(-50%, -50%) translateY(var(--pulse-step)); }
    .pulse-message-deck .pulse-message:nth-child(5) { transform: translate(-50%, -50%) translateY(var(--pulse-two)); }
  }

/* ============ REMEMBERED INTERNET ============ */
  .memory-showcase {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    color: var(--ink);
    padding: clamp(76px, 9vw, 132px) clamp(20px, 5vw, 48px);
  }
  .memory-showcase::before {
    content: none;
  }
  .memory-inner {
    width: min(1240px, 100%);
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(260px, .78fr) minmax(520px, 1.22fr);
    align-items: center;
    gap: clamp(52px, 7vw, 104px);
  }
  .memory-copy h2 {
    max-width: 11ch;
    margin: 0 0 18px;
    color: var(--ink);
    font-size: clamp(32px, 4vw, 50px);
    line-height: 1.08;
    text-wrap: balance;
  }
  .memory-lede {
    max-width: 41ch;
    margin: 0;
    color: var(--mute);
    font-size: clamp(15.5px, 1.4vw, 17.5px);
    line-height: 1.6;
    text-wrap: pretty;
  }
  .memory-principles {
    display: grid;
    gap: 0;
    margin-top: clamp(32px, 4vw, 48px);
    max-width: 420px;
  }
  .memory-principle {
    display: grid;
    grid-template-columns: 20px minmax(0, 1fr);
    gap: 13px;
    align-items: center;
    padding: 13px 0;
    color: var(--ink-soft);
    font-size: 14px;
    line-height: 1.4;
  }
  .memory-principle + .memory-principle {
    border-top: 1px solid rgba(26,23,20,.10);
  }
  .memory-principle svg {
    width: 18px;
    height: 18px;
    color: var(--accent);
    stroke: currentColor;
  }
  .memory-demo {
    overflow: hidden;
    min-width: 0;
    border-radius: 16px;
    border: 1px solid var(--rule);
    background: var(--paper);
    color: var(--ink);
    padding: clamp(18px, 2.5vw, 28px);
  }
  .memory-chat-thread {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .memory-chat-line {
    opacity: 1;
    transform: none;
  }
  .memory-chat-row {
    display: flex;
    align-items: flex-end;
    gap: 9px;
  }
  .memory-chat-row.is-user {
    flex-direction: column;
    align-items: flex-end;
  }
  .memory-chat-row.is-dewey {
    align-items: flex-start;
  }
  .memory-chat-avatar {
    width: 28px;
    height: 28px;
    flex: 0 0 auto;
    border-radius: 8px;
    object-fit: cover;
  }
  .memory-chat-message {
    min-width: 0;
    max-width: 86%;
  }
  .memory-chat-meta {
    display: block;
    margin: 0 0 5px;
    color: #756e65;
    font-size: 10.5px;
    font-weight: 500;
  }
  .is-user .memory-chat-meta {
    text-align: right;
  }
  .is-dewey .memory-chat-meta {
    color: #6048ca;
  }
  .memory-chat-bubble {
    padding: 12px 14px;
    color: var(--ink-soft);
    font-size: 13.5px;
    line-height: 1.5;
    text-wrap: pretty;
  }
  .memory-chat-bubble p {
    margin: 0;
  }
  .memory-chat-bubble.is-user {
    border-radius: 14px 14px 4px 14px;
    background: #e4dfd5;
  }
  .memory-chat-bubble.is-dewey {
    border-radius: 4px 14px 14px 14px;
    background: #fff;
  }
  .memory-chat-share {
    display: grid;
    grid-template-columns: 40px minmax(0, 1fr);
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid rgba(26,23,20,.11);
  }
  .memory-chat-share img {
    width: 40px;
    height: 40px;
    border-radius: 9px;
    object-fit: cover;
  }
  .memory-chat-share-copy {
    min-width: 0;
  }
  .memory-chat-share-copy strong,
  .memory-chat-share-copy span {
    display: block;
  }
  .memory-chat-share-copy strong {
    overflow: hidden;
    margin-bottom: 2px;
    font-size: 11.5px;
    font-weight: 600;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .memory-chat-share-copy span {
    color: #756e65;
    font-size: 10.5px;
  }
  .memory-chat-jump {
    align-self: center;
    padding: 5px 0 2px;
    color: #81796f;
    font-size: 10.5px;
    font-weight: 500;
  }
  .memory-chat-sources {
    margin-top: 12px;
    border-top: 1px solid rgba(26,23,20,.09);
  }
  .memory-chat-source {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr);
    align-items: center;
    gap: 9px;
    padding: 9px 0 0;
  }
  .memory-chat-source + .memory-chat-source {
    margin-top: 9px;
    border-top: 1px solid rgba(26,23,20,.07);
  }
  .memory-chat-source img {
    width: 28px;
    height: 28px;
    border-radius: 7px;
    object-fit: cover;
  }
  .memory-chat-source-copy {
    min-width: 0;
  }
  .memory-chat-source-copy strong,
  .memory-chat-source-copy span {
    display: block;
  }
  .memory-chat-source-copy strong {
    overflow: hidden;
    color: var(--ink-soft);
    font-size: 11px;
    font-weight: 600;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .memory-chat-source-copy span {
    color: #756e65;
    font-size: 10px;
  }
  @media (prefers-reduced-motion: no-preference) {
    .memory-showcase.is-visible .memory-chat-line {
      animation: memory-chat-in .62s var(--chat-delay, 0ms) cubic-bezier(.16,1,.3,1) both;
    }
    @keyframes memory-chat-in {
      from { opacity: 0; transform: translateY(9px); filter: blur(2px); }
      to { opacity: 1; transform: none; filter: none; }
    }
  }
  @media (max-width: 900px) {
    .memory-inner {
      grid-template-columns: 1fr;
      gap: 44px;
    }
    .memory-copy h2 { max-width: none; }
    .memory-lede { max-width: 52ch; }
  }
  @media (max-width: 560px) {
    .memory-showcase { padding-inline: 16px; }
    .memory-copy { padding-inline: 4px; }
    .memory-copy h2 { font-size: 32px; }
    .memory-demo { padding: 16px 12px 18px; }
    .memory-chat-message { max-width: 90%; }
    .memory-chat-bubble { font-size: 13px; }
  }
  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
  }

  /* ============ MEMORY UNIVERSE ============ */
  .memory-inner {
    display: block;
  }
  .memory-copy {
    max-width: 720px;
    margin: 0 auto clamp(42px, 6vw, 68px);
    text-align: center;
  }
  .memory-copy h2 {
    max-width: 16ch;
    margin-inline: auto;
  }
  .memory-lede {
    max-width: 58ch;
    margin-inline: auto;
  }
  .memory-universe {
    position: relative;
    isolation: isolate;
    width: min(1120px, 100%);
    min-height: 590px;
    margin: 0 auto;
    overflow: hidden;
    border: 1px solid rgba(26,23,20,.10);
    border-radius: 16px;
    background: var(--paper);
    color: var(--ink);
  }
  .memory-cosmos-canvas {
    position: absolute;
    z-index: 0;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    pointer-events: none;
  }
  .memory-universe .universe-map,
  .memory-universe .universe-node,
  .memory-universe .universe-core,
  .memory-universe .universe-note {
    display: none;
  }
  .memory-universe .universe-core {
    display: grid;
  }
  .memory-universe .universe-core-copy {
    display: none;
  }
  .universe-map {
    position: absolute;
    z-index: 2;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: .72;
    pointer-events: none;
  }
  .universe-star {
    fill: #fff;
    opacity: var(--star-opacity, .44);
  }
  .universe-star.is-purple { fill: #9d88ff; }
  .universe-link {
    fill: none;
    stroke: rgba(157,136,255,.38);
    stroke-width: 1.1;
    vector-effect: non-scaling-stroke;
  }
  .universe-link.is-faint {
    stroke: rgba(255,255,255,.14);
  }
  .universe-link.is-new {
    stroke: #e9b95f;
    stroke-width: 1.4;
    stroke-dasharray: 5 8;
  }
  .universe-node {
    position: absolute;
    z-index: 3;
    left: var(--x);
    top: var(--y);
    transform: translate(-50%, -50%);
    text-align: center;
  }
  .universe-node-inner {
    display: grid;
    justify-items: center;
    gap: 7px;
  }
  .universe-node img {
    width: 42px;
    height: 42px;
    display: block;
    border-radius: 10px;
    object-fit: cover;
    background: #fff;
    box-shadow: 0 0 0 1px rgba(255,255,255,.20);
  }
  .universe-node-label {
    color: rgba(255,255,255,.70);
    font-size: 10px;
    font-weight: 500;
    line-height: 1.2;
    white-space: nowrap;
  }
  .universe-topic {
    z-index: 4;
  }
  .universe-topic .universe-node-inner {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    min-height: 30px;
    padding: 0 10px;
    border: 1px solid rgba(255,255,255,.15);
    border-radius: 999px;
    background: #211b32;
    color: rgba(255,255,255,.88);
    font-size: 10.5px;
    font-weight: 500;
    white-space: nowrap;
  }
  .universe-topic-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #9d88ff;
  }
  .universe-topic.is-new .universe-node-inner {
    border-color: rgba(233,185,95,.40);
    color: #f5d99f;
  }
  .universe-topic.is-new .universe-topic-dot {
    background: #e9b95f;
  }
  .universe-core {
    position: absolute;
    z-index: 5;
    left: 50%;
    top: 50%;
    display: grid;
    justify-items: center;
    gap: 10px;
    transform: translate(-50%, -50%);
  }
  .universe-core::before,
  .universe-core::after {
    content: "";
    position: absolute;
    z-index: -1;
    left: 50%;
    top: 43px;
    border: 1px solid rgba(122,92,245,.20);
    border-radius: 50%;
    transform: translate(-50%, -50%);
  }
  .universe-core::before { width: 116px; height: 116px; }
  .universe-core::after { width: 162px; height: 162px; opacity: .55; }
  .universe-core img {
    width: 86px;
    height: 86px;
    display: block;
    border-radius: 20px;
    object-fit: cover;
    box-shadow: 0 0 0 1px rgba(26,23,20,.10), 0 6px 14px rgba(26,23,20,.10);
  }
  .universe-core-copy strong,
  .universe-core-copy span {
    display: block;
    text-align: center;
  }
  .universe-core-copy strong {
    margin-bottom: 2px;
    font-size: 13px;
    font-weight: 600;
  }
  .universe-core-copy span {
    color: rgba(255,255,255,.56);
    font-size: 9.5px;
  }
  .universe-note {
    position: absolute;
    z-index: 5;
    right: 22px;
    bottom: 18px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,.58);
    font-size: 10px;
  }
  .universe-note::before {
    content: "";
    width: 16px;
    height: 1px;
    background: #e9b95f;
  }
  @media (prefers-reduced-motion: no-preference) {
    .memory-showcase.is-visible .universe-link {
      stroke-dasharray: 900;
      stroke-dashoffset: 900;
      animation: universe-draw 1.7s var(--link-delay, 0ms) cubic-bezier(.16,1,.3,1) forwards;
    }
    .memory-showcase.is-visible .universe-link.is-new {
      stroke-dasharray: 5 8;
      animation: universe-new-link 12s linear infinite;
    }
    .memory-showcase.is-visible .universe-node-inner {
      animation: universe-float var(--float-speed, 5.8s) var(--float-delay, 0s) ease-in-out infinite;
    }
    .memory-showcase.is-visible .universe-star {
      animation: universe-twinkle var(--twinkle-speed, 4.5s) var(--twinkle-delay, 0s) ease-in-out infinite;
    }
    @keyframes universe-draw { to { stroke-dashoffset: 0; } }
    @keyframes universe-new-link { to { stroke-dashoffset: -52; } }
    @keyframes universe-float {
      0%, 100% { transform: translateY(2px); }
      50% { transform: translateY(-4px); }
    }
    @keyframes universe-twinkle {
      0%, 100% { opacity: .18; }
      50% { opacity: var(--star-opacity, .44); }
    }
  }
  @media (max-width: 760px) {
    .memory-copy { text-align: left; margin-bottom: 36px; }
    .memory-copy h2,
    .memory-lede { margin-inline: 0; }
    .memory-universe { min-height: 600px; }
    .universe-node img { width: 34px; height: 34px; border-radius: 8px; }
    .universe-node-label { display: none; }
    .universe-node.is-optional { display: none; }
    .universe-topic .universe-node-inner {
      min-height: 26px;
      padding-inline: 8px;
      font-size: 9px;
    }
    .universe-core img { width: 72px; height: 72px; border-radius: 17px; }
    .universe-core::before { width: 98px; height: 98px; top: 36px; }
    .universe-core::after { width: 132px; height: 132px; top: 36px; }
    .universe-note { right: 14px; bottom: 13px; font-size: 9px; }
  }

  /* ============ LIVING MEMORY OBJECT ============ */
  .memory-showcase {
    padding-block: clamp(88px, 11vw, 156px);
    background: var(--bg);
  }
  .memory-inner {
    display: grid;
    grid-template-columns: minmax(340px, .9fr) minmax(360px, .8fr);
    align-items: center;
    gap: clamp(70px, 9vw, 140px);
    width: min(1100px, 100%);
  }
  .memory-copy {
    grid-column: 2;
    grid-row: 1;
    max-width: 500px;
    margin: 0;
    text-align: left;
  }
  .memory-copy h2 {
    max-width: 10ch;
    margin-inline: 0;
    font-family: 'Instrument Serif', Georgia, serif !important;
    font-size: clamp(40px, 4.7vw, 58px);
    font-weight: 590 !important;
    line-height: 1.02;
    letter-spacing: -.01em !important;
  }
  .memory-lede {
    max-width: 45ch;
    margin-inline: 0;
    font-size: 16px;
  }
  .memory-universe {
    grid-column: 1;
    grid-row: 1;
    width: 100%;
    min-height: 480px;
    margin: 0;
    overflow: visible;
    border: 0;
    border-radius: 0;
    background: transparent;
  }
  .memory-universe .universe-core {
    display: grid;
  }
  .universe-core::before,
  .universe-core::after {
    display: none;
  }
  .universe-core img {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    box-shadow: 0 0 0 1px rgba(26,23,20,.08), 0 6px 14px rgba(26,23,20,.08);
  }
  @media (max-width: 820px) {
    .memory-inner {
      grid-template-columns: 1fr;
      gap: 44px;
    }
    .memory-copy,
    .memory-universe {
      grid-column: 1;
    }
    .memory-copy { grid-row: 1; }
    .memory-universe {
      grid-row: 2;
      min-height: 410px;
    }
    .memory-copy h2 { font-size: clamp(40px, 12vw, 58px); }
  }
  @media (max-width: 560px) {
    .memory-showcase { padding-block: 80px; }
    .memory-universe { min-height: 360px; }
    .universe-core img { width: 46px; height: 46px; border-radius: 11px; }
  }