.page-products {
  --pp-line: rgba(16, 42, 67, 0.13);
  --pp-line-strong: rgba(11, 110, 138, 0.3);
  --pp-gap: clamp(0.9rem, 2.4vw, 1.5rem);
  background: var(--color-snow);
  color: var(--color-ink);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
  overflow-wrap: break-word;
}

.page-products .products-crumbs {
  padding-top: clamp(0.9rem, 3vw, 1.6rem);
}

/* ---------- 首屏 ---------- */
.page-products .products-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(1.5rem, 4.5vw, 3.25rem) clamp(2rem, 6vw, 4rem);
  background:
    radial-gradient(circle at 86% 8%, rgba(63, 208, 201, 0.24), transparent 58%),
    linear-gradient(158deg, rgba(11, 110, 138, 0.12) 0%, rgba(247, 250, 252, 0) 64%);
}

.page-products .products-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(112deg, rgba(11, 110, 138, 0.07) 0 1px, transparent 1px 36px);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.55), transparent 74%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.55), transparent 74%);
}

.page-products .products-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 2.75rem);
  align-items: start;
}

.page-products .products-hero__copy {
  min-width: 0;
}

.page-products .products-hero__copy .display-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 5.4vw, 3.3rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--color-indigo);
  margin: 0.5rem 0 0.9rem;
  max-width: 22ch;
}

.page-products .products-hero__copy .lede {
  max-width: 56ch;
  color: #24405a;
  line-height: 1.8;
  margin-bottom: 1.35rem;
}

.page-products .products-hero__stats {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 2rem;
  margin: clamp(1.4rem, 4vw, 2.1rem) 0 0;
  padding: 1.15rem 0 0;
  border-top: var(--hairline);
}

.page-products .products-stat {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 5.5rem;
}

.page-products .products-stat__num {
  font-family: var(--font-numeric);
  font-size: clamp(1.4rem, 3.6vw, 1.9rem);
  font-weight: 700;
  color: var(--color-cyan);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.page-products .products-stat__label {
  font-size: 0.8125rem;
  color: #4c6474;
}

/* ---------- 图例卡 ---------- */
.page-products .products-legend {
  border: 1px solid var(--pp-line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow-card);
  padding: clamp(1rem, 3vw, 1.5rem);
  min-width: 0;
}

.page-products .products-legend__title {
  font-family: var(--font-numeric);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin: 0 0 0.85rem;
}

.page-products .products-legend__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem 0.75rem;
}

.page-products .products-legend__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  color: var(--color-indigo);
  font-weight: 500;
}

.page-products .products-legend__coord {
  display: inline-grid;
  place-items: center;
  width: 1.55rem;
  height: 1.55rem;
  flex: none;
  border-radius: 50%;
  border: 1px solid var(--pp-line-strong);
  background: rgba(11, 110, 138, 0.1);
  font-family: var(--font-numeric);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-cyan);
}

.page-products .products-legend__note {
  margin: 1rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--pp-line);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: #4c6474;
}

/* ---------- 章节索引条 ---------- */
.page-products .products-indexbar {
  border-block: 1px solid var(--pp-line);
  background: rgba(247, 250, 252, 0.94);
  backdrop-filter: blur(6px);
}

.page-products .products-indexbar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  padding-block: 0.75rem;
}

.page-products .products-indexbar .chapter-nav-title {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--color-gold);
  text-transform: uppercase;
  margin: 0;
  font-family: var(--font-numeric);
}

.page-products .chapter-nav-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
}

.page-products .chapter-link {
  display: inline-block;
  padding: 0.3rem 0.72rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--pp-line);
  font-size: 0.8125rem;
  color: #24405a;
  text-decoration: none;
  transition: background-color 240ms var(--ease), color 240ms var(--ease), border-color 240ms var(--ease);
}

.page-products .chapter-link:hover,
.page-products .chapter-link:focus-visible,
.page-products .chapter-link[aria-current="location"] {
  background: var(--color-cyan);
  border-color: var(--color-cyan);
  color: #ffffff;
}

/* ---------- 章节骨架 ---------- */
.page-products .products-section {
  padding-block: clamp(2.25rem, 6vw, 4rem);
  scroll-margin-top: 5rem;
}

.page-products .products-section--tinted {
  background: linear-gradient(180deg, rgba(221, 232, 236, 0.55), rgba(247, 250, 252, 0.2));
}

.page-products .products-section--deep {
  background:
    radial-gradient(circle at 12% 0%, rgba(43, 168, 154, 0.18), transparent 52%),
    linear-gradient(180deg, rgba(16, 42, 67, 0.055), rgba(247, 250, 252, 0));
}

.page-products .products-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.75rem clamp(0.75rem, 2.5vw, 1.6rem);
  align-items: start;
  padding-bottom: 1rem;
  margin-bottom: clamp(1.25rem, 3.5vw, 2rem);
  border-bottom: 1px solid var(--pp-line);
}

.page-products .products-head__num {
  display: block;
  font-family: var(--font-numeric);
  font-size: clamp(1.5rem, 4.4vw, 2.6rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--color-gold);
}

.page-products .products-head__body {
  min-width: 0;
}

.page-products .products-head .section-title,
.page-products .products-split__body .section-title,
.page-products .products-cta__body .section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 3.4vw, 1.95rem);
  line-height: 1.3;
  color: var(--color-indigo);
  margin: 0 0 0.6rem;
}

.page-products .products-head .body-copy,
.page-products .products-split__body .body-copy,
.page-products .products-cta__body .body-copy {
  margin: 0;
  max-width: 62ch;
  line-height: 1.8;
  color: #2c4759;
}

/* ---------- 图片 ---------- */
.page-products .products-figure {
  margin: 0 0 clamp(1.25rem, 3.5vw, 2rem);
  border: 1px solid var(--pp-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(150deg, rgba(11, 110, 138, 0.9), rgba(16, 42, 67, 0.95));
  box-shadow: var(--shadow-card);
}

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

.page-products .products-figure--map img {
  aspect-ratio: 1400 / 900;
}

.page-products .products-figure--diagram img {
  aspect-ratio: 1200 / 800;
}

.page-products .products-figure--wide img {
  aspect-ratio: 1200 / 500;
}

.page-products .products-figure--portrait img {
  aspect-ratio: 1000 / 700;
}

.page-products .products-figure--help img {
  aspect-ratio: 900 / 650;
}

.page-products .products-figure .media-caption {
  display: block;
  padding: 0.7rem 1rem;
  background: rgba(7, 25, 35, 0.92);
  color: rgba(247, 250, 252, 0.86);
  font-size: 0.78rem;
  line-height: 1.6;
}

/* ---------- 分类磁贴 ---------- */
.page-products .products-tiles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
}

.page-products .products-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.1rem 1.1rem 1.15rem 1.35rem;
  border: 1px solid var(--pp-line);
  border-radius: var(--radius-sm);
  background: #ffffff;
  transition: transform 240ms var(--ease), box-shadow 240ms var(--ease), border-color 240ms var(--ease);
}

.page-products .products-tile::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.95rem;
  bottom: 0.95rem;
  width: 3px;
  border-radius: 3px;
  background: var(--color-cyan);
}

.page-products .products-tile:hover,
.page-products .products-tile:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
  border-color: var(--pp-line-strong);
}

.page-products .products-tile__top {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.page-products .products-tile__coord {
  display: inline-grid;
  place-items: center;
  width: 1.5rem;
  height: 1.5rem;
  flex: none;
  border-radius: 6px;
  background: var(--color-indigo);
  color: var(--color-snow);
  font-family: var(--font-numeric);
  font-size: 0.75rem;
  font-weight: 700;
}

.page-products .products-tile__title {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-indigo);
  margin: 0;
}

.page-products .products-tile__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: #3d5768;
}

.page-products .products-tile__count {
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--font-numeric);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--color-cyan);
  background: rgba(11, 110, 138, 0.09);
  border-radius: var(--radius-pill);
  padding: 0.22rem 0.65rem;
}

/* ---------- 步骤 ---------- */
.page-products .products-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
}

.page-products .products-step {
  position: relative;
  padding: 1.1rem 1.1rem 1.2rem;
  border: 1px solid var(--pp-line);
  border-radius: var(--radius-sm);
  background: #ffffff;
  transition: border-color 240ms var(--ease), box-shadow 240ms var(--ease);
}

.page-products .products-step .step__index {
  display: inline-grid;
  place-items: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background: var(--color-indigo);
  color: var(--color-snow);
  font-family: var(--font-numeric);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.7rem;
}

.page-products .products-step .step__title {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-indigo);
  margin: 0 0 0.45rem;
}

.page-products .products-step .step__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: #3d5768;
}

.page-products .products-step[data-current="true"] {
  border-color: var(--color-orange);
  box-shadow: 0 0 0 3px rgba(242, 138, 46, 0.14);
}

.page-products .products-step[data-current="true"] .step__index {
  background: var(--color-orange);
  color: #ffffff;
  animation: pp-pulse 2.6s var(--ease) infinite;
}

@keyframes pp-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(242, 138, 46, 0.45); }
  55% { box-shadow: 0 0 0 9px rgba(242, 138, 46, 0); }
}

.page-products .products-note {
  margin-top: clamp(1.15rem, 3vw, 1.75rem);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  padding: 0.95rem 1.15rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(201, 154, 61, 0.4);
  background: rgba(243, 228, 200, 0.72);
}

.page-products .products-note__text {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.72;
  color: #4a3b1c;
  max-width: 62ch;
}

.page-products .products-note__link {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-cyan);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
  white-space: nowrap;
}

.page-products .products-note__link:hover {
  color: var(--color-orange);
}

/* ---------- 场景标签 ---------- */
.page-products .products-scenes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
}

.page-products .products-scene {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1.05rem 1.1rem 1.15rem;
  border: 1px solid var(--pp-line);
  border-radius: var(--radius-sm);
  background: #ffffff;
  border-top: 3px solid rgba(11, 110, 138, 0.55);
}

.page-products .products-scene:nth-child(even) {
  border-top-color: rgba(201, 154, 61, 0.75);
}

.page-products .products-scene__title {
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-indigo);
  margin: 0;
}

.page-products .products-scene__text {
  margin: 0 0 0.35rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: #4c6474;
}

.page-products .products-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
}

.page-products .products-tags .tag {
  display: inline-block;
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--pp-line);
  background: rgba(221, 232, 236, 0.5);
  font-size: 0.78rem;
  color: #24405a;
  line-height: 1.5;
  transition: background-color 240ms var(--ease), color 240ms var(--ease), border-color 240ms var(--ease);
}

.page-products .products-tags .tag:hover {
  background: var(--color-cyan);
  border-color: var(--color-cyan);
  color: #ffffff;
}

.page-products .products-tags .tag--orange {
  background: rgba(242, 138, 46, 0.14);
  border-color: rgba(242, 138, 46, 0.45);
  color: #a1520c;
}

.page-products .products-tags .tag--teal {
  background: rgba(43, 168, 154, 0.14);
  border-color: rgba(43, 168, 154, 0.4);
  color: #16736a;
}

/* ---------- 版本刻度 ---------- */
.page-products .products-track {
  list-style: none;
  display: flex;
  gap: clamp(1rem, 3vw, 2.25rem);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  margin: 0;
  padding: 1.75rem 0 1.1rem;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-products .products-track__node {
  position: relative;
  flex: 0 0 min(76%, 265px);
  scroll-snap-align: start;
  padding-top: 1.35rem;
  border-top: 1px solid var(--pp-line-strong);
}

.page-products .products-track__node::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--color-snow);
  border: 2px solid var(--color-cyan);
  transition: background-color 240ms var(--ease), border-color 240ms var(--ease), transform 240ms var(--ease);
}

.page-products .products-track__node:hover::before {
  background: var(--color-orange);
  border-color: var(--color-orange);
  transform: scale(1.28);
}

.page-products .products-track__year {
  display: block;
  font-family: var(--font-numeric);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-gold);
  margin-bottom: 0.35rem;
}

.page-products .products-track__title {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-indigo);
  margin: 0 0 0.4rem;
}

.page-products .products-track__text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.72;
  color: #3d5768;
}

/* ---------- 设备与访问 ---------- */
.page-products .products-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.25rem, 4vw, 2.75rem);
  align-items: start;
}

.page-products .products-split__media {
  margin: 0;
}

.page-products .products-split__body {
  min-width: 0;
}

.page-products .products-split__body .products-head__num {
  margin-bottom: 0.5rem;
}

.page-products .products-list {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-products .products-list__item {
  padding-left: 1rem;
  border-left: 2px solid rgba(201, 154, 61, 0.6);
}

.page-products .products-list__title {
  font-family: var(--font-sans);
  font-size: 0.975rem;
  font-weight: 700;
  color: var(--color-indigo);
  margin: 0 0 0.3rem;
}

.page-products .products-list__text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: #3d5768;
}

/* ---------- 收束区 ---------- */
.page-products .products-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.25rem, 4vw, 2.5rem);
  align-items: center;
}

.page-products .products-cta__body {
  min-width: 0;
}

.page-products .products-cta__body .products-head__num {
  margin-bottom: 0.6rem;
}

.page-products .products-cta__body .action-row {
  margin-top: 1.25rem;
}

.page-products .products-cta__media {
  margin: 0;
}

.page-products .products-links {
  margin-top: clamp(1.75rem, 4.5vw, 2.75rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.75rem;
  padding-top: clamp(1.25rem, 3vw, 1.75rem);
  border-top: 1px solid var(--pp-line);
}

.page-products .products-links__item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--pp-line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  transition: border-color 240ms var(--ease), background-color 240ms var(--ease), transform 240ms var(--ease);
}

.page-products .products-links__item:hover {
  border-color: var(--color-cyan);
  background: #ffffff;
  transform: translateY(-3px);
}

.page-products .products-links__label {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-cyan);
}

.page-products .products-links__text {
  font-size: 0.8125rem;
  line-height: 1.65;
  color: #4c6474;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-products .products-tiles,
  .page-products .products-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-products .products-hero__grid {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .page-products .products-split {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }

  .page-products .products-cta {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

@media (min-width: 1000px) {
  .page-products .products-tiles {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .products-scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .products-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .products-links {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .products-track__node {
    flex: 1 1 0;
    min-width: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .products-tile,
  .page-products .products-links__item,
  .page-products .products-track__node::before,
  .page-products .chapter-link,
  .page-products .products-step[data-current="true"] .step__index {
    transition: none;
    animation: none;
    transform: none;
  }
}