.page-products {
  --pp-accent: var(--c-gold);
  --pp-hair: rgba(169, 139, 82, 0.30);
  --pp-fill: rgba(169, 139, 82, 0.12);
  --pp-soft: rgba(169, 139, 82, 0.06);
  color: var(--c-paper);
  padding-bottom: clamp(56px, 8vw, 120px);
}

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

.page-products .breadcrumb {
  margin: clamp(18px, 4vw, 40px) 0 clamp(22px, 4vw, 40px);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
}

.page-products .pp-hero__main .eyebrow {
  color: var(--c-gold);
}

.page-products .pp-hero__main h1 {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(30px, 7.2vw, 58px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  margin: 10px 0 18px;
  max-width: 20ch;
}

.page-products .pp-hero__main .lede {
  max-width: 48ch;
  color: var(--c-fog);
  margin-bottom: 26px;
}

.page-products .pp-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .pp-hero__side {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.page-products .pp-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 12px;
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--pp-accent);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, var(--pp-soft), rgba(0, 0, 0, 0) 70%), var(--c-slate);
}

.page-products .pp-stat__num {
  display: inline-flex;
  align-items: baseline;
  font-size: clamp(22px, 5vw, 32px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--c-paper);
}

.page-products .pp-stat__unit {
  font-size: 0.48em;
  margin-left: 3px;
  color: var(--c-gold);
  letter-spacing: 0;
}

.page-products .pp-stat__label {
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.05em;
  color: var(--c-fog);
}

/* ---------- 编号章节 ---------- */
.page-products .pp-chapter {
  margin-top: clamp(64px, 10vw, 128px);
  scroll-margin-top: calc(var(--top-h) + 20px);
}

.page-products .pp-chapter__head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(24px, 4vw, 40px);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--c-line);
}

.page-products .pp-chapter__num {
  font-size: clamp(36px, 9vw, 58px);
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--c-gold);
  opacity: 0.5;
}

.page-products .pp-chapter__title {
  font-size: clamp(22px, 3.6vw, 34px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-products .pp-chapter__lede {
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-fog);
}

/* ---------- 横向卡片流 ---------- */
.page-products .pp-rail {
  display: flex;
  gap: var(--gap);
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  padding-bottom: 14px;
  -webkit-overflow-scrolling: touch;
}

.page-products .pp-rail::-webkit-scrollbar {
  height: 5px;
}

.page-products .pp-rail::-webkit-scrollbar-track {
  background: var(--c-slate);
  border-radius: 999px;
}

.page-products .pp-rail::-webkit-scrollbar-thumb {
  background: var(--pp-hair);
  border-radius: 999px;
}

.page-products .pp-rail > * {
  flex: 0 0 min(82vw, 340px);
  scroll-snap-align: start;
}

.page-products .pp-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: var(--c-slate);
  transition: border-color var(--ease), transform var(--ease), background var(--ease);
}

.page-products .pp-card:hover,
.page-products .pp-card:focus-within {
  border-color: var(--pp-accent);
  background: #262c35;
  transform: translateY(-2px);
}

.page-products .pp-card__kicker {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-gold);
}

.page-products .pp-card__title {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
}

.page-products .pp-card__text {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-fog);
}

.page-products .pp-card__list {
  list-style: none;
  display: grid;
  gap: 8px;
  margin-top: 2px;
}

.page-products .pp-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-fog);
}

.page-products .pp-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 7px;
  height: 2px;
  background: var(--pp-accent);
}

.page-products .pp-track {
  margin-top: auto;
  height: 3px;
  border-radius: 999px;
  background: var(--c-char);
  border: 1px solid var(--c-line);
  overflow: hidden;
}

.page-products .pp-track > span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, rgba(169, 139, 82, 0.3), var(--c-gold));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-products .pp-card:hover .pp-track > span,
.page-products .pp-card:focus-within .pp-track > span {
  transform: scaleX(1);
}

/* ---------- 三步注册 ---------- */
.page-products .pp-steps {
  display: flex;
  gap: var(--gap);
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  padding-bottom: 14px;
  -webkit-overflow-scrolling: touch;
}

.page-products .pp-steps::-webkit-scrollbar {
  height: 5px;
}

.page-products .pp-steps::-webkit-scrollbar-track {
  background: var(--c-slate);
  border-radius: 999px;
}

.page-products .pp-steps::-webkit-scrollbar-thumb {
  background: var(--pp-hair);
  border-radius: 999px;
}

.page-products .pp-step {
  position: relative;
  flex: 0 0 min(85vw, 380px);
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: var(--c-slate);
  transition: border-color var(--ease), transform var(--ease);
}

.page-products .pp-step:hover {
  border-color: var(--pp-accent);
  transform: translateY(-2px);
}

.page-products .pp-step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 46px;
  right: calc(var(--gap) * -1);
  width: var(--gap);
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--pp-hair) 0 4px, rgba(0, 0, 0, 0) 4px 8px);
}

.page-products .pp-step__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: var(--r-sm);
  border: 1px solid var(--pp-hair);
  background: var(--pp-fill);
  color: var(--c-gold);
  font-size: 16px;
  letter-spacing: 0.04em;
}

.page-products .pp-step__title {
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
}

.page-products .pp-step__text {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-fog);
}

.page-products .pp-step .fold {
  margin-top: 2px;
}

/* ---------- 图片容器 ---------- */
.page-products .pp-shot {
  margin: 0;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: var(--c-char);
  overflow: hidden;
}

.page-products .pp-shot img {
  width: 100%;
}

.page-products .pp-shot__cap {
  padding: 10px 13px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-fog);
  border-top: 1px solid var(--c-line);
  background: var(--c-slate);
}

.page-products .pp-shot--phone {
  max-width: 250px;
}

.page-products .pp-shot--banner {
  margin-bottom: clamp(24px, 4vw, 40px);
  border-color: var(--pp-hair);
}

/* ---------- 换设备登录 ---------- */
.page-products .pp-meter {
  display: grid;
  gap: 16px;
  margin-bottom: clamp(24px, 4vw, 40px);
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: linear-gradient(120deg, var(--pp-soft), rgba(0, 0, 0, 0) 60%), var(--c-slate);
}

.page-products .pp-meter__row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
}

.page-products .pp-meter__key {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-fog);
}

.page-products .pp-meter__bar {
  position: relative;
  height: 12px;
  border-radius: 999px;
  border: 1px solid var(--c-line);
  background: var(--c-char);
  overflow: hidden;
}

.page-products .pp-meter__bar > i {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  display: block;
  border-radius: 999px;
}

.page-products .pp-meter__bar--full > i {
  width: 100%;
  background: linear-gradient(90deg, rgba(169, 139, 82, 0.22), rgba(169, 139, 82, 0.5));
}

.page-products .pp-meter__bar--short > i {
  width: 33%;
  background: linear-gradient(90deg, var(--c-gold), var(--c-paper));
}

.page-products .pp-meter__val {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-paper);
  white-space: nowrap;
}

.page-products .pp-meter__row--now .pp-meter__key {
  color: var(--c-gold);
}

.page-products .pp-relogin {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-products .pp-relogin__list {
  list-style: none;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-products .pp-relogin__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-fog);
}

.page-products .pp-relogin__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 2px solid var(--pp-accent);
}

.page-products .pp-relogin__list strong {
  color: var(--c-paper);
  font-weight: 700;
}

/* ---------- 功能清单 ---------- */
.page-products .pp-features {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-products .pp-feats {
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-products .pp-feat {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 4px 12px;
  padding: 16px 18px;
  border: 1px solid var(--c-line);
  border-left: 2px solid transparent;
  border-radius: var(--r-md);
  background: var(--c-slate);
  transition: border-color var(--ease), background var(--ease), transform var(--ease);
}

.page-products .pp-feat:hover,
.page-products .pp-feat:focus-within {
  border-left-color: var(--pp-accent);
  background: #262c35;
  transform: translateX(2px);
}

.page-products .pp-feat__icon {
  grid-row: span 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--r-sm);
  background: var(--pp-fill);
  color: var(--c-gold);
}

.page-products .pp-feat__title {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-paper);
}

.page-products .pp-feat__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-fog);
}

.page-products .pp-features__side {
  display: grid;
  gap: var(--gap);
  align-content: start;
  justify-items: start;
}

/* ---------- 版本时间轴 ---------- */
.page-products .pp-tl {
  list-style: none;
  display: grid;
  gap: 12px;
  max-width: 900px;
}

.page-products .pp-tl__item {
  position: relative;
  padding: 16px 18px 16px 36px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: var(--c-slate);
  transition: border-color var(--ease), transform var(--ease);
}

.page-products .pp-tl__item:hover {
  border-color: var(--pp-accent);
  transform: translateX(2px);
}

.page-products .pp-tl__item::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 24px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-gold);
  box-shadow: 0 0 0 4px rgba(169, 139, 82, 0.16);
}

.page-products .pp-tl__item:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 17px;
  top: 38px;
  bottom: -14px;
  width: 2px;
  background: var(--pp-hair);
}

.page-products .pp-tl__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.page-products .pp-tl__tag {
  display: inline-block;
  padding: 3px 9px;
  border: 1px solid var(--pp-hair);
  border-radius: var(--r-pill);
  color: var(--c-gold);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.5;
}

.page-products .pp-tl__title {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
}

.page-products .pp-tl__text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-fog);
}

/* ---------- 问题指向 ---------- */
.page-products .pp-help {
  display: grid;
  gap: 12px;
}

.page-products .pp-help__item {
  display: grid;
  gap: 7px;
  padding: 18px 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: var(--c-slate);
  text-decoration: none;
  transition: border-color var(--ease), transform var(--ease), background var(--ease);
}

.page-products .pp-help__item:hover,
.page-products .pp-help__item:focus-visible {
  border-color: var(--pp-accent);
  background: #262c35;
  transform: translateY(-2px);
}

.page-products .pp-help__k {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-gold);
}

.page-products .pp-help__t {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--c-paper);
}

.page-products .pp-help__item .link-more {
  font-size: 13px;
}

.page-products .pp-note {
  margin-top: clamp(20px, 3vw, 30px);
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-fog);
}

.page-products .pp-note a {
  color: var(--c-gold);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .pp-feats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pp-help {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .pp-hero {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }

  .page-products .pp-hero__side {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .page-products .pp-stat {
    padding: 18px 20px;
  }

  .page-products .pp-chapter__head {
    grid-template-columns: minmax(0, auto) minmax(0, 1fr);
    column-gap: 28px;
    align-items: start;
  }

  .page-products .pp-chapter__num {
    grid-column: 1;
    grid-row: 1 / span 2;
    font-size: 68px;
    padding-top: 4px;
  }

  .page-products .pp-chapter__title {
    grid-column: 2;
  }

  .page-products .pp-chapter__lede {
    grid-column: 2;
  }

  .page-products .pp-rail {
    overflow: visible;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding-bottom: 0;
  }

  .page-products .pp-rail > * {
    flex: initial;
  }

  .page-products .pp-steps {
    overflow: visible;
    display: grid;
    grid-template-columns: 1.08fr 0.96fr 0.92fr;
    align-items: start;
    padding-bottom: 0;
  }

  .page-products .pp-step {
    flex: initial;
  }

  .page-products .pp-relogin {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-products .pp-features {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pp-feats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1200px) {
  .page-products .pp-feats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-card,
  .page-products .pp-step,
  .page-products .pp-feat,
  .page-products .pp-tl__item,
  .page-products .pp-help__item {
    transition: none;
  }

  .page-products .pp-card:hover,
  .page-products .pp-card:focus-within,
  .page-products .pp-step:hover,
  .page-products .pp-feat:hover,
  .page-products .pp-feat:focus-within,
  .page-products .pp-tl__item:hover,
  .page-products .pp-help__item:hover,
  .page-products .pp-help__item:focus-visible {
    transform: none;
  }

  .page-products .pp-track > span {
    transition: none;
  }

  .page-products .pp-card:hover .pp-track > span,
  .page-products .pp-card:focus-within .pp-track > span {
    transform: scaleX(0);
  }
}
<<<END>>>