.page-products {
  --pp-bg: var(--blue-950);
  --pp-panel: var(--blue-800);
  --pp-border: rgba(245, 240, 230, 0.14);
  --pp-accent: var(--orange-500);
  --pp-green: var(--green-400);
  --pp-cream: var(--cream-100);
  background: var(--pp-bg);
  color: var(--text-default);
  font-family: var(--font-body);
  line-height: 1.65;
  overflow-x: hidden;
}

.page-products .container {
  width: min(var(--container-width), 100%);
  margin-inline: auto;
  padding-inline: 24px;
}

.page-products .breadcrumb {
  margin-bottom: 32px;
  font-size: 14px;
}

/* ===== 首屏 ===== */
.page-products .pp-hero {
  position: relative;
  padding: 64px 0 72px;
  background:
    radial-gradient(ellipse at 85% 10%, rgba(255, 107, 53, 0.1), transparent 42%),
    linear-gradient(180deg, var(--blue-950), var(--blue-900));
  border-bottom: 1px solid var(--pp-border);
  overflow: hidden;
}

.page-products .pp-hero::before {
  content: "PLATFORM";
  position: absolute;
  top: 16px;
  left: 0;
  font-family: var(--font-heading);
  font-size: clamp(56px, 10vw, 170px);
  line-height: 1;
  letter-spacing: 0.02em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(245, 240, 230, 0.07);
  white-space: nowrap;
  pointer-events: none;
  text-transform: uppercase;
}

.page-products .pp-hero-grid {
  position: relative;
  display: grid;
  gap: 44px;
  align-items: center;
}

.page-products .pp-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--pp-green);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.page-products .pp-kicker::before {
  content: "";
  display: inline-block;
  width: 28px;
  height: 3px;
  background: var(--pp-accent);
  transform: skewX(-30deg);
}

.page-products .pp-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(40px, 7vw, 88px);
  line-height: 0.96;
  color: var(--text-strong);
  text-transform: uppercase;
  letter-spacing: 0.01em;
  margin-bottom: 22px;
  max-width: 10em;
}

.page-products .pp-hero-copy > p:not(.pp-kicker) {
  font-size: 17px;
  line-height: 1.7;
  color: var(--text-default);
  max-width: 46em;
}

.page-products .pp-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  margin-top: 36px;
}

.page-products .pp-stat {
  position: relative;
  padding-left: 18px;
}

.page-products .pp-stat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--pp-accent);
  transform: rotate(45deg);
}

.page-products .pp-stat-num {
  font-family: var(--font-heading);
  font-size: 46px;
  line-height: 1;
  color: var(--text-strong);
  display: block;
}

.page-products .pp-stat-label {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-top: 6px;
  display: block;
}

.page-products .pp-hero-visual {
  position: relative;
}

.page-products .pp-hero-visual::before {
  content: "";
  position: absolute;
  right: -10px;
  bottom: -10px;
  width: 72px;
  height: 72px;
  background: rgba(57, 255, 20, 0.2);
  clip-path: polygon(50% 0, 100% 0, 100% 100%, 0 100%);
  z-index: 0;
}

.page-products .pp-hero-visual img {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--pp-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

/* ===== 平台概览 ===== */
.page-products .pp-architecture {
  padding: 76px 0;
  background: linear-gradient(180deg, var(--blue-900), var(--blue-950));
}

.page-products .pp-section-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 18px;
}

.page-products .pp-section-index {
  font-family: var(--font-heading);
  font-size: 18px;
  color: var(--pp-accent);
  letter-spacing: 0.1em;
  line-height: 1;
}

.page-products .pp-section-head h2 {
  font-family: var(--font-heading);
  font-size: clamp(32px, 4vw, 58px);
  line-height: 1;
  color: var(--text-strong);
  text-transform: uppercase;
}

.page-products .pp-section-head h2::after {
  content: "";
  display: block;
  width: 72px;
  height: 6px;
  background: var(--pp-accent);
  clip-path: polygon(0 0, 100% 0, 85% 100%, 0 100%);
  margin-top: 12px;
}

.page-products .pp-arch-desc {
  max-width: 45em;
  margin-bottom: 42px;
}

.page-products .pp-arch-cards {
  display: grid;
  gap: 24px;
}

.page-products .pp-arch-card {
  display: block;
  background: linear-gradient(180deg, var(--blue-800), var(--blue-900));
  border: 1px solid var(--pp-border);
  border-top: 4px solid var(--pp-accent);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  color: var(--text-default);
  text-decoration: none;
  transition: transform var(--ease-base), box-shadow var(--ease-base);
}

.page-products .pp-arch-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.page-products .pp-arch-num {
  font-family: var(--font-heading);
  font-size: 20px;
  color: var(--pp-green);
  letter-spacing: 0.06em;
}

.page-products .pp-arch-card h3 {
  font-family: var(--font-heading);
  font-size: 24px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text-strong);
  margin: 14px 0 8px;
}

.page-products .pp-arch-card p {
  font-size: 15px;
  line-height: 1.6;
  margin: 0;
}

.page-products .pp-arch-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 700;
  color: var(--pp-accent);
}

.page-products .pp-arch-link::after {
  content: "→";
  transition: transform var(--ease-fast);
}

.page-products .pp-arch-card:hover .pp-arch-link::after {
  transform: translateX(6px);
}

/* ===== 功能段落通用 ===== */
.page-products .pp-feature {
  padding: 76px 0;
}

.page-products .pp-feature-filter {
  background: var(--blue-950);
  border-top: 1px solid var(--pp-border);
}

.page-products .pp-feature-subscribe {
  background: var(--pp-cream);
  color: var(--gray-900);
  border-top: 4px solid var(--pp-accent);
}

.page-products .pp-feature-grid {
  display: grid;
  gap: 38px;
  align-items: center;
  margin-top: 32px;
}

.page-products .pp-feature-grid h3 {
  font-family: var(--font-heading);
  font-size: 26px;
  line-height: 1.15;
  color: var(--text-strong);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.page-products .pp-feature-grid p {
  line-height: 1.7;
}

.page-products .pp-copy ul {
  list-style: none;
  padding: 0;
  margin: 22px 0;
  display: grid;
  gap: 12px;
}

.page-products .pp-copy li {
  position: relative;
  padding-left: 28px;
  line-height: 1.55;
}

.page-products .pp-copy li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 12px;
  height: 6px;
  border-left: 3px solid var(--pp-accent);
  border-bottom: 3px solid var(--pp-accent);
  transform: rotate(-45deg);
}

.page-products .pp-visual {
  position: relative;
}

.page-products .pp-visual::before {
  content: "";
  position: absolute;
  top: -14px;
  right: -14px;
  width: 58px;
  height: 58px;
  background: rgba(57, 255, 20, 0.35);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}

.page-products .pp-visual img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--pp-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

/* 浅色区块适配 */
.page-products .pp-feature-subscribe .pp-section-head h2 {
  color: var(--gray-900);
}

.page-products .pp-feature-subscribe .pp-section-head h2::after {
  background: var(--orange-600);
}

.page-products .pp-feature-subscribe .pp-section-index {
  color: var(--orange-600);
}

.page-products .pp-feature-subscribe .pp-feature-grid h3 {
  color: var(--gray-900);
}

.page-products .pp-feature-subscribe .pp-copy li {
  color: var(--gray-900);
}

.page-products .pp-feature-subscribe .pp-copy li::before {
  border-color: var(--orange-500);
}

.page-products .pp-feature-subscribe .pp-visual::before {
  background: rgba(255, 107, 53, 0.28);
}

.page-products .pp-feature-subscribe .pp-visual img {
  border-color: rgba(10, 25, 47, 0.16);
  box-shadow: 0 12px 36px rgba(10, 25, 47, 0.18);
}

/* 老用户专区高亮 */
.page-products .pp-old-user-highlight {
  margin-top: 44px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px 24px;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.16), rgba(255, 107, 53, 0.04));
  border: 1px solid rgba(255, 107, 53, 0.35);
  border-left: 6px solid var(--pp-accent);
  border-radius: var(--radius-md);
  padding: 24px;
}

.page-products .pp-glow-dot {
  flex: 0 0 auto;
  width: 12px;
  height: 12px;
  background: var(--pp-green);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(57, 255, 20, 0.45);
  animation: pp-glow 2.4s infinite;
}

@keyframes pp-glow {
  0% { box-shadow: 0 0 0 0 rgba(57, 255, 20, 0.45); }
  70% { box-shadow: 0 0 0 14px rgba(57, 255, 20, 0); }
  100% { box-shadow: 0 0 0 0 rgba(57, 255, 20, 0); }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-glow-dot {
    animation: none;
  }
}

.page-products .pp-ou-copy {
  flex: 1 1 260px;
}

.page-products .pp-ou-copy strong {
  display: block;
  font-size: 18px;
  color: var(--text-strong);
  margin-bottom: 4px;
}

.page-products .pp-ou-copy p {
  margin: 0;
  font-size: 14px;
  color: var(--text-default);
  max-width: 42em;
}

/* ===== 导出流程 ===== */
.page-products .pp-export {
  position: relative;
  padding: 76px 0;
  background: linear-gradient(135deg, rgba(17, 43, 71, 0.75), var(--blue-950));
  border-top: 1px solid var(--pp-border);
}

.page-products .pp-export::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 46%;
  height: 6px;
  background: linear-gradient(90deg, var(--pp-accent), var(--pp-green));
  clip-path: polygon(0 100%, 100% 0, 100% 100%, 24% 100%);
}

.page-products .pp-export-lead {
  max-width: 48em;
  margin: 22px 0 0;
  font-size: 17px;
  line-height: 1.7;
}

.page-products .pp-step-flow {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 40px 0 36px;
}

.page-products .pp-step {
  flex: 1;
  background: var(--blue-800);
  border: 1px solid var(--pp-border);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  padding: 22px;
}

.page-products .pp-step-num {
  font-family: var(--font-heading);
  font-size: 42px;
  line-height: 1;
  color: var(--pp-accent);
  display: block;
  margin-bottom: 10px;
}

.page-products .pp-step h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-strong);
  margin-bottom: 4px;
}

.page-products .pp-step p {
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-muted);
  margin: 0;
}

.page-products .pp-step-arrow {
  font-size: 20px;
  line-height: 1;
  color: var(--pp-green);
  text-align: center;
  transform: rotate(90deg);
  padding: 2px 0;
}

.page-products .pp-export-notes {
  background: rgba(255, 107, 53, 0.08);
  border: 1px dashed rgba(255, 107, 53, 0.4);
  border-radius: var(--radius-md);
  padding: 24px;
  margin-bottom: 32px;
}

.page-products .pp-export-notes h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-strong);
  margin-bottom: 8px;
}

.page-products .pp-export-notes p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-default);
  max-width: 48em;
}

.page-products .pp-notes-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  margin-top: 20px;
}

.page-products .pp-text-link {
  color: var(--pp-green);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid rgba(57, 255, 20, 0.35);
  padding-bottom: 2px;
  transition: border-color var(--ease-fast);
}

.page-products .pp-text-link:hover {
  border-color: var(--pp-green);
}

.page-products .pp-export-visual {
  margin-top: 8px;
}

.page-products .pp-export-visual img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--pp-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

/* ===== 版本历史 ===== */
.page-products .pp-history {
  padding: 76px 0;
  background:
    linear-gradient(180deg, var(--blue-950), rgba(17, 43, 71, 0.55)),
    repeating-linear-gradient(-45deg, rgba(245, 240, 230, 0.035) 0 10px, transparent 10px 28px);
  border-top: 1px solid var(--pp-border);
}

.page-products .pp-history-desc {
  max-width: 46em;
  margin: 20px 0 0;
}

.page-products .pp-timeline {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding: 8px 4px 24px;
  margin: 36px 0 28px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-products .pp-timeline-item {
  flex: 0 0 min(300px, 82vw);
  background: var(--blue-800);
  border: 1px solid var(--pp-border);
  border-top: 3px solid var(--pp-green);
  border-radius: var(--radius-md);
  padding: 24px 22px;
  scroll-snap-align: start;
}

.page-products .pp-version-tag {
  display: inline-block;
  background: var(--pp-green);
  color: var(--blue-950);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
  text-transform: uppercase;
}

.page-products .pp-timeline-item h3 {
  font-family: var(--font-heading);
  font-size: 20px;
  color: var(--text-strong);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.page-products .pp-timeline-item p {
  font-size: 14px;
  line-height: 1.55;
  color: var(--text-muted);
  margin: 0;
}

.page-products .pp-history-visual img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--pp-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

/* ===== 继续探索 ===== */
.page-products .pp-next {
  padding: 72px 0;
  border-top: 1px solid var(--pp-border);
}

.page-products .pp-next h2 {
  font-family: var(--font-heading);
  font-size: clamp(28px, 3vw, 44px);
  color: var(--text-strong);
  text-transform: uppercase;
  margin-bottom: 30px;
}

.page-products .pp-next-links {
  display: grid;
  gap: 20px;
}

.page-products .pp-next-card {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  background: var(--blue-800);
  border-left: 4px solid var(--pp-accent);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  color: var(--text-strong);
  text-decoration: none;
  transition: background var(--ease-fast), transform var(--ease-fast);
}

.page-products .pp-next-title {
  font-family: var(--font-heading);
  font-size: 20px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.page-products .pp-next-desc {
  font-size: 14px;
  color: var(--text-muted);
  text-align: right;
}

.page-products .pp-next-card:hover {
  background: var(--blue-700);
  transform: translateX(6px);
}

/* ===== 按钮增强 ===== */
.page-products .btn {
  border-radius: var(--radius-pill);
  font-weight: 700;
  padding: 12px 24px;
}

.page-products .btn-primary {
  background: var(--pp-accent);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.35);
}

.page-products .btn-secondary {
  border: 2px solid rgba(245, 240, 230, 0.55);
  color: var(--text-strong);
}

/* ===== 桌面端增强 ===== */
@media (min-width: 820px) {
  .page-products .pp-arch-cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }

  .page-products .pp-step-flow {
    flex-direction: row;
    align-items: center;
    gap: 10px;
  }

  .page-products .pp-step {
    padding: 26px 24px;
  }

  .page-products .pp-step-arrow {
    transform: none;
    font-size: 26px;
    padding: 0 6px;
  }

  .page-products .pp-next-links {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .pp-next-card {
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
  }

  .page-products .pp-next-desc {
    text-align: left;
  }
}

@media (min-width: 920px) {
  .page-products .pp-hero-grid {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 64px;
  }

  .page-products .pp-feature-grid {
    grid-template-columns: 1fr 1fr;
    gap: 56px;
  }

  .page-products .pp-feature-reverse .pp-visual {
    order: 1;
  }

  .page-products .pp-feature-reverse .pp-copy {
    order: 2;
  }

  .page-products .pp-timeline-item {
    flex-basis: 320px;
  }
}