/* ========== 页面作用域变量 ========== */
.page-products {
  --pp-pink-glow: 0 0 26px rgba(255, 46, 151, 0.45);
  --pp-blue-glow: 0 0 20px rgba(0, 217, 255, 0.4);
  --pp-gold-glow: 0 0 18px rgba(244, 201, 93, 0.35);
}

/* ========== 区块通用 ========== */
.page-products .pp-hero,
.page-products .pp-options,
.page-products .pp-versions,
.page-products .pp-sync,
.page-products .pp-player,
.page-products .pp-help {
  position: relative;
}

.page-products .pp-hero {
  padding-block: 20px 48px;
  overflow: hidden;
}

.page-products .pp-options {
  padding-block: 28px 56px;
  overflow: hidden;
}

.page-products .pp-versions,
.page-products .pp-player {
  padding-block: 28px 56px;
  border-top: 1px solid var(--border-neon);
}

.page-products .pp-sync {
  padding-block: 28px 56px;
  border-top: 1px solid var(--border-neon);
  border-bottom: 1px solid var(--border-neon);
  background:
    radial-gradient(circle at 15% 20%, rgba(255, 46, 151, 0.14), transparent 42%),
    radial-gradient(circle at 88% 78%, rgba(0, 217, 255, 0.12), transparent 46%);
}

.page-products .pp-help {
  padding-block: 20px 56px;
}

.page-products #pp-options,
.page-products #pp-versions,
.page-products #pp-sync,
.page-products #pp-player,
.page-products #pp-download-notes {
  scroll-margin-top: calc(var(--header-h) + 20px);
}

/* ========== 面包屑 ========== */
.page-products .pp-crumb {
  margin-bottom: 28px;
}

.page-products .pp-crumb-current {
  color: var(--accent-gold);
}

.page-products .pp-crumb-sep {
  margin-inline: 10px;
  color: var(--text-muted);
  font-family: var(--font-code);
}

/* ========== 区块标题 ========== */
.page-products .pp-section-head {
  margin-bottom: 30px;
  max-width: 820px;
}

.page-products .pp-section-head__no {
  display: inline-block;
  color: var(--accent-secondary);
  letter-spacing: 0.16em;
  border-left: 3px solid var(--accent-primary);
  padding-left: 10px;
}

.page-products .pp-section-head__title {
  margin: 12px 0 10px;
}

.page-products .pp-section-head__lead {
  margin: 0;
  color: var(--text-muted);
}

/* ========== Hero ========== */
.page-products .pp-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 82% 18%, rgba(255, 46, 151, 0.16), transparent 42%),
    radial-gradient(circle at 8% 92%, rgba(0, 217, 255, 0.14), transparent 46%),
    linear-gradient(rgba(0, 217, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 217, 255, 0.05) 1px, transparent 1px);
  background-size: auto, auto, 44px 44px, 44px 44px;
}

.page-products .pp-hero__grid {
  display: grid;
  gap: 36px;
}

.page-products .pp-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--accent-secondary);
  letter-spacing: 0.18em;
  padding: 8px 14px;
  border: 1px solid var(--border-neon);
  border-radius: 999px;
  background: rgba(0, 217, 255, 0.06);
}

.page-products .pp-hero__kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: var(--pp-pink-glow);
}

.page-products .pp-hero__title {
  margin: 20px 0 18px;
}

.page-products .pp-hero__title-accent {
  display: inline-block;
  margin-left: 10px;
  color: var(--accent-primary);
  text-shadow: var(--pp-pink-glow);
}

.page-products .pp-hero__lead {
  max-width: 680px;
  color: var(--text-muted);
}

.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.page-products .pp-hero__cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  overflow: hidden;
}

.page-products .pp-hero__cta::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -70%;
  width: 60%;
  background: linear-gradient(100deg, transparent 20%, rgba(255, 255, 255, 0.28) 50%, transparent 80%);
  animation: pp-sweep 3.2s ease-in-out infinite;
  pointer-events: none;
}

.page-products .pp-hero__cta-code {
  font-family: var(--font-code);
  font-size: 0.8rem;
  border-left: 1px solid rgba(255, 255, 255, 0.45);
  padding-left: 10px;
  white-space: nowrap;
  max-width: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-width 0.35s ease, opacity 0.35s ease;
}

.page-products .pp-hero__cta:hover .pp-hero__cta-code,
.page-products .pp-hero__cta:focus-visible .pp-hero__cta-code {
  max-width: 96px;
  opacity: 1;
}

.page-products .pp-hero__facts {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px 18px;
  margin: 34px 0 0;
  padding: 20px 0 0;
  border-top: 1px dashed var(--border-neon);
}

.page-products .pp-fact-num {
  display: block;
  font-family: var(--font-code);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent-secondary);
  text-shadow: var(--pp-blue-glow);
}

.page-products .pp-fact-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.page-products .pp-hero__stage {
  position: relative;
  min-height: 320px;
}

.page-products .pp-hero__stage::before {
  content: "";
  position: absolute;
  left: 12%;
  right: 10%;
  bottom: 26%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-secondary) 30%, var(--accent-primary) 70%, transparent);
  background-size: 220% 100%;
  animation: pp-flowline 4.2s linear infinite;
}

.page-products .pp-device {
  position: absolute;
  filter: drop-shadow(0 20px 32px rgba(0, 0, 0, 0.55));
}

.page-products .pp-device--screen {
  width: min(88%, 430px);
  left: 0;
  top: 4%;
  z-index: 1;
  animation: pp-float 6s ease-in-out infinite;
}

.page-products .pp-device--hand {
  width: min(42%, 178px);
  right: 0;
  bottom: 2%;
  z-index: 2;
  animation: pp-float 7s ease-in-out infinite reverse;
}

.page-products .pp-device-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .pp-hero__stage-caption {
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  z-index: 3;
  color: var(--accent-gold);
  background: rgba(11, 5, 18, 0.85);
  border: 1px solid var(--border-gold);
  border-radius: 999px;
  padding: 6px 14px;
  white-space: nowrap;
}

/* ========== 01 选择你的客户端 ========== */
.page-products .pp-options::before {
  content: "EEUSS / 2025";
  position: absolute;
  top: 72px;
  right: -24px;
  font-family: var(--font-code);
  font-size: clamp(2rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 46, 151, 0.16);
  white-space: nowrap;
  pointer-events: none;
}

.page-products .pp-options .container {
  position: relative;
  z-index: 1;
}

.page-products .pp-options__swipe {
  margin: -6px 0 18px;
  color: var(--text-muted);
  text-align: center;
  letter-spacing: 0.12em;
}

.page-products .pp-options__stage {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-left: 16px;
  padding: 8px 2px 26px;
  scrollbar-width: none;
}

.page-products .pp-options__stage::-webkit-scrollbar {
  display: none;
}

.page-products .pp-client-card {
  flex: 0 0 86%;
  scroll-snap-align: center;
  perspective: 1600px;
}

.page-products .pp-client-card--desktop {
  flex-basis: 88%;
}

.page-products .pp-client-card--mobile {
  flex-basis: 76%;
}

.page-products .pp-client-card__inner {
  position: relative;
  min-height: 520px;
  transform-style: preserve-3d;
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.page-products .pp-client-card:hover .pp-client-card__inner,
.page-products .pp-client-card:focus-within .pp-client-card__inner {
  transform: rotateY(180deg);
}

.page-products .pp-client-card__face {
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius);
}

.page-products .pp-client-card__front {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg-panel);
  border: 1px solid var(--border-neon);
  box-shadow: var(--shadow-hard);
}

.page-products .pp-client-card__back {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  padding: 24px 22px 20px;
  overflow-y: auto;
  background:
    radial-gradient(circle at 120% 0%, rgba(255, 46, 151, 0.18), transparent 38%),
    linear-gradient(180deg, rgba(0, 217, 255, 0.05), transparent 32%),
    var(--bg-panel);
  border: 1px solid var(--border-pink);
  box-shadow: var(--shadow-hard);
  transform: rotateY(180deg);
}

.page-products .pp-client-card__top {
  position: absolute;
  top: 14px;
  left: 14px;
  right: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 3;
  pointer-events: none;
}

.page-products .pp-client-card__ver {
  color: var(--accent-gold);
  letter-spacing: 0.08em;
}

.page-products .pp-client-card__screen {
  position: relative;
  margin: 12px 12px 0;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-neon);
}

.page-products .pp-client-card__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.page-products .pp-client-card:hover .pp-client-card__img {
  transform: scale(1.04);
}

.page-products .pp-client-card__screen-tip {
  position: absolute;
  right: 8px;
  bottom: 8px;
  color: var(--accent-secondary);
  background: rgba(11, 5, 18, 0.78);
  border: 1px solid var(--border-neon);
  border-radius: 4px;
  padding: 3px 8px;
  letter-spacing: 0.06em;
}

.page-products .pp-client-card__body {
  padding: 16px 20px 20px;
}

.page-products .pp-client-card__name {
  margin: 4px 0 8px;
}

.page-products .pp-client-card__desc {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}

.page-products .pp-client-card__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.page-products .pp-client-card__back-no {
  color: var(--accent-secondary);
  letter-spacing: 0.14em;
}

.page-products .pp-client-card__back-title {
  margin: 6px 0 0;
  color: var(--accent-gold);
}

.page-products .pp-client-card__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}

.page-products .pp-client-card__list li {
  position: relative;
  padding: 7px 0 7px 22px;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.65;
}

.page-products .pp-client-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  width: 12px;
  height: 2px;
  background: var(--accent-secondary);
  box-shadow: var(--pp-blue-glow);
}

.page-products .pp-client-card__cta {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  overflow: hidden;
}

.page-products .pp-client-card__cta::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -70%;
  width: 60%;
  background: linear-gradient(100deg, transparent 20%, rgba(255, 255, 255, 0.25) 50%, transparent 80%);
  animation: pp-sweep 3.6s ease-in-out infinite;
  pointer-events: none;
}

.page-products .pp-client-card__cta-ver {
  font-family: var(--font-code);
  font-size: 0.78rem;
  border-left: 1px solid rgba(255, 255, 255, 0.4);
  padding-left: 9px;
  max-width: 0;
  opacity: 0;
  overflow: hidden;
  white-space: nowrap;
  transition: max-width 0.3s ease, opacity 0.3s ease;
}

.page-products .pp-client-card__cta:hover .pp-client-card__cta-ver,
.page-products .pp-client-card__cta:focus-visible .pp-client-card__cta-ver {
  max-width: 76px;
  opacity: 1;
}

/* ========== 同步连接桥 ========== */
.page-products .pp-sync-bridge {
  flex: 0 0 118px;
  scroll-snap-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 0;
}

.page-products .pp-sync-bridge__orb {
  margin: 0;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--accent-secondary);
  box-shadow: 0 0 22px rgba(0, 217, 255, 0.35);
  animation: pp-pulse-orb 2.8s ease-in-out infinite;
}

.page-products .pp-sync-bridge__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .pp-sync-bridge__label {
  color: var(--text-muted);
  text-align: center;
  white-space: nowrap;
}

.page-products .pp-sync-bridge__arrow {
  color: var(--accent-gold);
  font-size: 1.2rem;
  line-height: 1;
  animation: pp-pulse-orb 2.8s ease-in-out infinite reverse;
}

/* ========== Web 版说明 ========== */
.page-products .pp-web-note {
  margin-top: 20px;
  display: grid;
  gap: 14px;
  padding: 22px;
  background:
    linear-gradient(135deg, rgba(0, 217, 255, 0.08), rgba(255, 46, 151, 0.05)),
    var(--bg-panel);
  border: 1px dashed var(--border-neon);
  border-radius: var(--radius);
}

.page-products .pp-web-note__mark {
  font-family: var(--font-code);
  font-size: 0.82rem;
  color: var(--accent-secondary);
  letter-spacing: 0.16em;
}

.page-products .pp-web-note__copy h3 {
  margin: 0 0 8px;
}

.page-products .pp-web-note__copy p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.8;
}

.page-products .pp-web-note__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
}

.page-products .pp-inline-link {
  color: var(--accent-secondary);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 0.25s;
}

.page-products .pp-inline-link:hover {
  color: var(--accent-primary);
}

/* ========== 02 更新记录时间线 ========== */
.page-products .pp-version-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pp-version-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 18px 0 22px 20px;
  border-left: 2px solid var(--border-neon);
}

.page-products .pp-version-item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(0, 217, 255, 0.3), transparent);
}

.page-products .pp-version-item::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 26px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: var(--pp-pink-glow);
  border: 2px solid var(--bg-deep);
}

.page-products .pp-version-item__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding-right: 56px;
}

.page-products .pp-version-item__ver {
  font-family: var(--font-code);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--accent-gold);
  letter-spacing: 0.04em;
  text-shadow: var(--pp-gold-glow);
}

.page-products .pp-version-item__body h3 {
  margin: 2px 0 4px;
}

.page-products .pp-version-item__list {
  margin: 6px 0 0;
  padding-left: 20px;
}

.page-products .pp-version-item__list li {
  color: var(--text-muted);
  margin: 7px 0;
  font-size: 0.92rem;
  line-height: 1.7;
}

.page-products .pp-version-item__list code {
  font-family: var(--font-code);
  font-size: 0.84em;
  color: var(--accent-secondary);
  background: rgba(0, 217, 255, 0.08);
  border: 1px solid var(--border-neon);
  border-radius: 4px;
  padding: 1px 6px;
}

.page-products .pp-version-item__icon {
  position: absolute;
  top: 20px;
  right: 0;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  opacity: 0.92;
  border: 1px solid var(--border-neon);
}

.page-products .pp-versions__note {
  margin: 18px 0 0;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  line-height: 1.8;
}

/* ========== 03 同步流程与进度 ========== */
.page-products .pp-sync__flow {
  display: grid;
  gap: 28px;
}

.page-products .pp-sync__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: pp-step;
}

.page-products .pp-sync__steps li {
  position: relative;
  counter-increment: pp-step;
  padding: 16px 0 16px 58px;
  border-bottom: 1px dashed var(--border-neon);
}

.page-products .pp-sync__steps li:last-child {
  border-bottom: none;
}

.page-products .pp-sync__steps li::before {
  content: counter(pp-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 18px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  font-family: var(--font-code);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--bg-deep);
  background: linear-gradient(135deg, var(--accent-secondary), #7A5CFF);
  clip-path: polygon(0 0, 100% 0, 100% 72%, 74% 100%, 0 100%);
  box-shadow: var(--pp-blue-glow);
}

.page-products .pp-sync__steps h3 {
  margin: 0 0 6px;
}

.page-products .pp-sync__steps p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.75;
}

.page-products .pp-sync__viz {
  display: grid;
  gap: 18px;
}

.page-products .pp-sync__rail {
  display: flex;
  align-items: stretch;
  gap: 10px;
}

.page-products .pp-sync__node {
  flex: 1;
  background: var(--bg-panel);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-sm);
  padding: 14px 10px;
  text-align: center;
  box-shadow: var(--shadow-panel);
}

.page-products .pp-sync__node svg {
  display: block;
  width: 46px;
  height: auto;
  margin: 8px auto;
}

.page-products .pp-sync__node-label {
  color: var(--accent-secondary);
  letter-spacing: 0.12em;
}

.page-products .pp-sync__node-status {
  display: block;
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.page-products .pp-sync__pulse {
  flex: 0 0 56px;
  position: relative;
  height: 2px;
  align-self: center;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
}

.page-products .pp-sync__pulse::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-secondary);
  box-shadow: var(--pp-blue-glow);
  transform: translateY(-50%);
  animation: pp-transfer 2.2s ease-in-out infinite;
}

.page-products .pp-progress {
  background: var(--bg-panel);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
  padding: 18px 16px 14px;
}

.page-products .pp-progress__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.page-products .pp-progress__track {
  position: relative;
  height: 10px;
  background: var(--bg-panel-2);
  border: 1px solid var(--border-neon);
  border-radius: 999px;
  overflow: hidden;
}

.page-products .pp-progress__fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  box-shadow: var(--pp-pink-glow);
}

.page-products .pp-progress__fill::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: -100%;
  width: 60%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  animation: pp-scan 2.8s ease-in-out infinite;
}

.page-products .pp-progress__meta {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  color: var(--text-muted);
}

/* ========== 04 播放器与字幕 ========== */
.page-products .pp-player__grid {
  display: grid;
  gap: 26px;
}

.page-products .pp-player__features {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pp-player__features li {
  position: relative;
  padding: 16px 18px 16px 58px;
  background: var(--bg-panel);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}

.page-products .pp-player__features li:hover {
  border-color: var(--accent-primary);
  transform: translate(-3px, -3px);
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.45), 0 0 18px rgba(255, 46, 151, 0.12);
}

.page-products .pp-player__features li::before {
  content: "▶";
  position: absolute;
  left: 14px;
  top: 18px;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  font-size: 0.64rem;
  color: var(--bg-deep);
  background: var(--accent-secondary);
  clip-path: polygon(0 0, 100% 0, 100% 72%, 72% 100%, 0 100%);
  box-shadow: var(--pp-blue-glow);
}

.page-products .pp-player__features h3 {
  margin: 0 0 6px;
}

.page-products .pp-player__features p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-products .pp-player__shot {
  margin: 0;
  background: var(--bg-panel);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-hard);
}

.page-products .pp-player__shot img {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .pp-player__shot figcaption {
  padding: 12px 16px;
  color: var(--text-muted);
  border-top: 1px dashed var(--border-neon);
  letter-spacing: 0.06em;
}

/* ========== 延伸入口 ========== */
.page-products .pp-help__grid {
  display: grid;
  gap: 16px;
}

.page-products .pp-help__card {
  display: block;
  position: relative;
  padding: 24px 22px;
  background: var(--bg-panel);
  border: 1px solid var(--border-neon);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text-bright);
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.page-products .pp-help__card::before {
  content: "";
  position: absolute;
  right: -26px;
  top: -26px;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 217, 255, 0.14), transparent 65%);
  transition: transform 0.3s;
}

.page-products .pp-help__card::after {
  content: "→";
  position: absolute;
  right: 18px;
  bottom: 16px;
  color: var(--accent-gold);
  font-size: 1.1rem;
}

.page-products .pp-help__card:hover,
.page-products .pp-help__card:focus-visible {
  transform: translate(-4px, -4px);
  border-color: var(--accent-primary);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.5), 0 0 22px rgba(255, 46, 151, 0.14);
}

.page-products .pp-help__card:hover::before {
  transform: scale(1.25);
}

.page-products .pp-help__card-no {
  color: var(--accent-secondary);
  letter-spacing: 0.14em;
}

.page-products .pp-help__card h3 {
  margin: 12px 0 8px;
}

.page-products .pp-help__card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  padding-right: 12px;
}

.page-products .pp-help__card-go {
  position: absolute;
  right: 18px;
  bottom: 16px;
  color: var(--accent-gold);
}

/* ========== 动效关键帧 ========== */
@keyframes pp-float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

@keyframes pp-sweep {
  0% {
    left: -70%;
  }
  55%, 100% {
    left: 110%;
  }
}

@keyframes pp-scan {
  0% {
    left: -100%;
  }
  55%, 100% {
    left: 100%;
  }
}

@keyframes pp-flowline {
  0% {
    background-position: 0% 0;
  }
  100% {
    background-position: -220% 0;
  }
}

@keyframes pp-transfer {
  0% {
    left: 0;
  }
  100% {
    left: calc(100% - 10px);
  }
}

@keyframes pp-pulse-orb {
  0%, 100% {
    transform: scale(1);
    opacity: 0.95;
  }
  50% {
    transform: scale(1.05);
    opacity: 1;
  }
}

/* ========== 媒体查询：窄屏增强 ========== */
@media (min-width: 640px) {
  .page-products .pp-hero__facts {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .pp-sync__rail {
    gap: 16px;
  }
}

@media (hover: none) {
  .page-products .pp-hero__cta-code {
    max-width: 96px;
    opacity: 1;
  }

  .page-products .pp-client-card__cta-ver {
    max-width: 76px;
    opacity: 1;
  }
}

/* ========== 媒体查询：平板 ========== */
@media (min-width: 860px) {
  .page-products .pp-section-head {
    margin-bottom: 40px;
  }

  .page-products .pp-version-item {
    grid-template-columns: 172px minmax(0, 1fr) 120px;
    gap: 24px;
    padding: 30px 0 34px 32px;
  }

  .page-products .pp-version-item::before {
    top: 34px;
  }

  .page-products .pp-version-item__icon {
    position: static;
    width: 120px;
    height: 120px;
  }

  .page-products .pp-sync__flow {
    grid-template-columns: 0.95fr 1.05fr;
    align-items: center;
    gap: 36px;
  }

  .page-products .pp-web-note {
    grid-template-columns: 90px minmax(0, 1fr) auto;
    align-items: center;
    gap: 20px;
  }

  .page-products .pp-web-note__actions {
    justify-content: flex-end;
  }
}

/* ========== 媒体查询：桌面 ========== */
@media (min-width: 1080px) {
  .page-products .pp-hero {
    padding-block: 28px 72px;
  }

  .page-products .pp-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
    align-items: center;
  }

  .page-products .pp-hero__stage {
    min-height: 380px;
  }

  .page-products .pp-options__swipe {
    display: none;
  }

  .page-products .pp-options__stage {
    display: grid;
    grid-template-columns: minmax(0, 1.16fr) minmax(0, 0.44fr) minmax(0, 0.84fr);
    gap: 28px;
    align-items: center;
    overflow: visible;
    padding-top: 12px;
  }

  .page-products .pp-client-card {
    flex: none;
  }

  .page-products .pp-client-card__inner {
    min-height: 560px;
  }

  .page-products .pp-sync-bridge {
    flex: none;
    position: relative;
  }

  .page-products .pp-sync-bridge::before {
    content: "";
    position: absolute;
    top: 50%;
    height: 2px;
    left: -28px;
    right: -28px;
    background: linear-gradient(90deg, transparent, rgba(0, 217, 255, 0.6));
    transform: translateY(-50%);
  }

  .page-products .pp-player__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 34px;
    align-items: center;
  }

  .page-products .pp-help__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
}

/* ========== 减弱动效 ========== */
@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}