.page-products {
  --pp-cut: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  --pp-cut-sm: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  --pp-rhythm: 18px;
  background: var(--porcelain);
  color: var(--ink-black);
  overflow-x: hidden;
}

.page-products .pp-section {
  padding: 52px 0;
}

.page-products .pp-sub {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.01em;
  margin: 0 0 14px;
  color: var(--ink-black);
}

/* ---------- 面包屑 ---------- */
.page-products .crumbs {
  padding: 18px 0 0;
}
.page-products .crumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--gray);
}
.page-products .crumb-item + .crumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--mist);
}
.page-products .crumb-link {
  color: var(--gray);
  text-decoration: none;
}
.page-products .crumb-link:hover {
  color: var(--ink-green);
  text-decoration: underline;
}
.page-products .crumb-item [aria-current="page"] {
  color: var(--ink-green);
  font-weight: 700;
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  position: relative;
  padding: 26px 0 46px;
  background: var(--porcelain);
  overflow: hidden;
}
.page-products .pp-hero::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -140px;
  width: 340px;
  height: 340px;
  background: linear-gradient(140deg, var(--ink-green) 0%, var(--felt) 100%);
  clip-path: polygon(34% 0, 100% 0, 100% 100%, 0 76%);
  opacity: .1;
  pointer-events: none;
}
.page-products .pp-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 64%;
  height: 3px;
  background: var(--gold);
}
.page-products .pp-hero-inner {
  position: relative;
  display: grid;
  gap: 26px;
}
.page-products .pp-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  letter-spacing: .14em;
  color: var(--felt);
  margin: 0;
}
.page-products .pp-kicker-bar {
  display: block;
  width: 32px;
  height: 3px;
  background: var(--gold);
}
.page-products .pp-hero-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 8.4vw, 52px);
  line-height: 1.14;
  letter-spacing: -.02em;
  margin: 14px 0 16px;
  color: var(--ink-black);
}
.page-products .pp-hero-lead {
  font-size: 16px;
  line-height: 1.8;
  color: var(--gray);
  margin: 0 0 24px;
  max-width: 46em;
}
.page-products .pp-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-products .pp-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--mist);
  border: 1px solid var(--mist);
  clip-path: var(--pp-cut);
  overflow: hidden;
}
.page-products .pp-stat {
  background: var(--porcelain);
  padding: 14px 16px;
}
.page-products .pp-stat dt {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--gray);
}
.page-products .pp-stat dd {
  margin: 6px 0 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-green);
}
.page-products .pp-stat .mono {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--ink-green);
}
.page-products .pp-stat .pp-accent {
  color: var(--cinnabar);
}

/* ---------- 区块标题 ---------- */
.page-products .pp-head {
  max-width: 640px;
  margin-bottom: 26px;
}
.page-products .pp-head--center {
  margin-top: 30px;
}
.page-products .pp-head-kicker {
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--felt);
  margin: 0 0 10px;
}
.page-products .pp-head-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 5.6vw, 32px);
  line-height: 1.26;
  letter-spacing: -.015em;
  margin: 0 0 12px;
  color: var(--ink-black);
}
.page-products .pp-head-note {
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--gray);
  margin: 0;
}
.page-products .pp-head-note .mono {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--cinnabar);
}

/* ---------- 线路与终端 ---------- */
.page-products .pp-lines {
  background: var(--mist);
}
.page-products .pp-lines-grid {
  display: grid;
  gap: 24px;
}
.page-products .pp-nodes {
  background: var(--porcelain);
  padding: 20px;
  clip-path: var(--pp-cut);
}
.page-products .pp-node-list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(20, 18, 14, .09);
}
.page-products .pp-node-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  padding: 10px 14px;
  background: var(--porcelain);
}
.page-products .pp-node-name {
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--ink-green);
  min-width: 42px;
}
.page-products .pp-node-desc {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--gray);
}
.page-products .pp-node-tip {
  font-size: 14px;
  line-height: 1.72;
  color: var(--felt);
  margin: 0;
  padding-left: 14px;
  border-left: 3px solid var(--gold);
}

.page-products .pp-terminal-zone {
  display: grid;
  gap: 14px;
}
.page-products .pp-media {
  margin: 0;
}

/* ---------- 分段控件 ---------- */
.page-products .pp-segmented {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  overflow-x: auto;
  padding: 2px 0 4px;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.page-products .pp-segmented::-webkit-scrollbar {
  display: none;
}
.page-products .pp-segmented .segment-btn {
  flex: 0 0 auto;
  appearance: none;
  border: 1px solid rgba(14, 59, 50, .22);
  background: transparent;
  color: var(--felt);
  font-family: var(--font-body);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: .02em;
  padding: 8px 14px;
  cursor: pointer;
  clip-path: var(--pp-cut-sm);
  transition: transform .2s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.page-products .pp-segmented .segment-btn:hover {
  transform: translateY(-1px);
  border-color: var(--gold);
  color: var(--ink-green);
}
.page-products .pp-segmented .segment-btn[aria-selected="true"] {
  background: var(--ink-green);
  border-color: var(--ink-green);
  color: var(--gold-soft);
}
.page-products .pp-segmented .segment-btn:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}
.page-products .segment-panel[hidden] {
  display: none !important;
}

.page-products .pp-term-panels {
  border-left: 3px solid var(--gold);
  padding-left: 16px;
}
.page-products .pp-term-ver {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink-green);
  margin: 0 0 6px;
}
.page-products .pp-term-ver .mono {
  font-family: var(--font-mono);
  letter-spacing: .08em;
}
.page-products .pp-term-text {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--gray);
  margin: 0;
}

/* ---------- 座位矩阵 ---------- */
.page-products .pp-seats {
  background: var(--porcelain);
}
.page-products .pp-seats-media {
  margin: 0 0 8px;
}
.page-products .pp-seats-tip {
  font-size: 14px;
  line-height: 1.7;
  color: var(--felt);
  margin: 14px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--gold);
}
.page-products .pp-matrix {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}
.page-products .pp-seat {
  position: relative;
  background: var(--mist);
  padding: 20px 20px 22px 26px;
  clip-path: var(--pp-cut);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: transform .24s var(--ease);
}
.page-products .pp-seat::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 4px;
  background: var(--gold);
  transition: background .24s var(--ease);
}
.page-products .pp-seat:hover {
  transform: translateY(-3px);
}
.page-products .pp-seat:hover::before {
  background: var(--cinnabar);
}
.page-products .pp-seat-tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--ink-deep);
  background: var(--gold-soft);
  padding: 3px 9px;
  margin: 0;
  clip-path: var(--pp-cut-sm);
}
.page-products .pp-seat-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -.01em;
  margin: 0;
  color: var(--ink-black);
}
.page-products .pp-seat-text {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--gray);
  margin: 0;
  flex: 1 1 auto;
}
.page-products .pp-seat-meta {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--felt);
}
.page-products .pp-seat-meta .mono {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--ink-green);
}

/* ---------- 版本档案 ---------- */
.page-products .pp-archive {
  position: relative;
  background: var(--ink-deep);
  color: var(--porcelain);
  overflow: hidden;
}
.page-products .pp-archive::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, rgba(201, 162, 74, .07) 0 1px, transparent 1px 56px);
  pointer-events: none;
}
.page-products .pp-archive-grid {
  position: relative;
  display: grid;
  gap: 26px;
}
.page-products .pp-archive .pp-head-kicker {
  color: var(--gold-soft);
}
.page-products .pp-archive .pp-head-title {
  color: var(--porcelain);
}
.page-products .pp-archive .pp-head-note {
  color: rgba(247, 244, 236, .72);
}
.page-products .pp-archive .pp-head-note .mono {
  color: var(--gold);
}
.page-products .pp-archive-media {
  margin: 0;
}
.page-products .pp-archive-main {
  display: grid;
  gap: 18px;
}
.page-products .pp-archive .pp-segmented .segment-btn {
  border-color: rgba(201, 162, 74, .38);
  color: var(--gold-soft);
}
.page-products .pp-archive .pp-segmented .segment-btn:hover {
  border-color: var(--gold);
  color: var(--porcelain);
}
.page-products .pp-archive .pp-segmented .segment-btn[aria-selected="true"] {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink-deep);
}

.page-products .pp-timeline {
  list-style: none;
  margin: 0;
  padding: 4px 0 0;
  position: relative;
}
.page-products .pp-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: rgba(201, 162, 74, .34);
}
.page-products .pp-timeline .timeline-item {
  position: relative;
  padding: 0 0 20px 32px;
}
.page-products .pp-timeline .timeline-item:last-child {
  padding-bottom: 4px;
}
.page-products .pp-timeline .timeline-dot {
  position: absolute;
  left: 0;
  top: 4px;
  width: 15px;
  height: 15px;
  background: var(--ink-deep);
  border: 2px solid var(--gold);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}
.page-products .pp-timeline .timeline-item[data-state="current"] .timeline-dot {
  background: var(--cinnabar);
  border-color: var(--gold-soft);
}
.page-products .pp-timeline .timeline-time {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--gold-soft);
  margin: 0 0 4px;
}
.page-products .pp-timeline .timeline-item[data-state="current"] .timeline-time {
  color: var(--gold);
}
.page-products .pp-timeline .timeline-body h3 {
  font-size: 15.5px;
  font-weight: 700;
  margin: 0 0 4px;
  color: var(--porcelain);
}
.page-products .pp-timeline .timeline-body p {
  font-size: 14px;
  line-height: 1.68;
  margin: 0;
  color: rgba(247, 244, 236, .66);
}

/* ---------- 迭代节奏 ---------- */
.page-products .pp-cadence {
  background: var(--mist);
}
.page-products .pp-cadence-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.page-products .pp-cadence-stat {
  background: var(--porcelain);
  padding: 18px;
  clip-path: var(--pp-cut-sm);
}
.page-products .pp-cadence-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--ink-green);
  line-height: 1;
}
.page-products .pp-cadence-label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--gray);
  margin: 8px 0 0;
}

/* ---------- 数据摘要 ---------- */
.page-products .pp-data {
  background: var(--porcelain);
}
.page-products .pp-data-grid {
  display: grid;
  gap: 24px;
}
.page-products .pp-data-main {
  display: grid;
  gap: 16px;
}
.page-products .pp-data-metrics {
  display: grid;
  gap: 1px;
  margin: 0;
  background: rgba(20, 18, 14, .1);
  clip-path: var(--pp-cut);
  overflow: hidden;
}
.page-products .pp-data-metric {
  background: var(--porcelain);
  padding: 15px 18px;
}
.page-products .pp-data-metric dt {
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--ink-green);
}
.page-products .pp-data-metric dd {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--gray);
}
.page-products .pp-data-media {
  margin: 0;
}

/* ---------- 使用场景 ---------- */
.page-products .pp-scenes {
  background: var(--mist);
}
.page-products .pp-scenes-media {
  margin: 0 0 26px;
  max-width: 520px;
}
.page-products .pp-scene-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .pp-scene {
  position: relative;
  background: var(--porcelain);
  padding: 18px 20px 18px 26px;
  clip-path: var(--pp-cut-sm);
  transition: transform .24s var(--ease);
}
.page-products .pp-scene::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--felt);
  transition: background .24s var(--ease);
}
.page-products .pp-scene:hover {
  transform: translateY(-3px);
}
.page-products .pp-scene:hover::before {
  background: var(--gold);
}
.page-products .pp-scene-title {
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 800;
  letter-spacing: -.01em;
  margin: 0 0 6px;
  color: var(--ink-black);
}
.page-products .pp-scene-text {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--gray);
  margin: 0;
}

/* ---------- 后续入口 ---------- */
.page-products .pp-next {
  background: var(--porcelain);
  padding-bottom: 60px;
}
.page-products .pp-next-grid {
  display: grid;
  gap: 12px;
}
.page-products .pp-next-card {
  display: block;
  background: var(--mist);
  padding: 20px;
  text-decoration: none;
  color: inherit;
  clip-path: var(--pp-cut);
  transition: transform .24s var(--ease), background .24s var(--ease), color .24s var(--ease);
}
.page-products .pp-next-card:hover {
  transform: translateY(-3px);
  background: var(--ink-green);
  color: var(--porcelain);
}
.page-products .pp-next-label {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  margin: 0 0 6px;
  color: var(--ink-black);
}
.page-products .pp-next-card:hover .pp-next-label {
  color: var(--gold-soft);
}
.page-products .pp-next-text {
  font-size: 14px;
  line-height: 1.7;
  margin: 0;
  color: var(--gray);
}
.page-products .pp-next-card:hover .pp-next-text {
  color: rgba(247, 244, 236, .82);
}

/* ---------- 媒体容器 ---------- */
.page-products .media-frame {
  position: relative;
  overflow: hidden;
  background: var(--felt);
}
.page-products .media-frame img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-products .pp-section {
    padding: 64px 0;
  }
  .page-products .pp-head--center {
    margin-top: 36px;
  }
  .page-products .pp-hero {
    padding: 34px 0 58px;
  }
  .page-products .pp-hero-inner {
    grid-template-columns: 1.5fr 1fr;
    align-items: end;
    gap: 36px;
  }
  .page-products .pp-hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pp-scene-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pp-cadence-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-products .pp-next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .pp-data-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .pp-lines-grid {
    grid-template-columns: 1fr 1.12fr;
    align-items: start;
    gap: 30px;
  }
  .page-products .pp-archive-grid {
    grid-template-columns: .72fr 1.28fr;
    align-items: start;
    gap: 36px;
  }
  .page-products .pp-archive-media {
    position: sticky;
    top: 28px;
  }
  .page-products .pp-data-grid {
    grid-template-columns: 1.28fr .92fr;
    align-items: center;
    gap: 34px;
  }
  .page-products .pp-matrix {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 16px;
  }
  .page-products .pp-seat--2 { grid-column: span 3; }
  .page-products .pp-seat--3 { grid-column: span 3; }
  .page-products .pp-seat--4 { grid-column: span 6; }
  .page-products .pp-seat--6 { grid-column: span 12; }
  .page-products .pp-seat--6 .pp-seat-text {
    max-width: 46em;
  }
  .page-products .pp-scene-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .pp-scenes-media {
    max-width: 420px;
  }
}

@media (min-width: 1000px) {
  .page-products .pp-next-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .page-products .pp-br {
    display: none;
  }
  .page-products .pp-seat,
  .page-products .pp-scene,
  .page-products .pp-nodes {
    padding-left: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
}