.page-products {
  --pp-gold: #FFD166;
  --pp-orange: #F85A2A;
  --pp-panel-deep: #12395C;
  --pp-panel-light: #EAF2F8;
  --pp-muted: #8D9AA5;
  --pp-accent-strong: #F0B429;

  background: var(--c-bg);
  color: var(--c-text);
}

.page-products .breadcrumb {
  padding-top: 1.25rem;
}

/* ===== 页面头部 ===== */
.page-products__head {
  padding: 0.75rem 0 3.5rem;
  display: grid;
  gap: 2rem;
  border-bottom: 1px solid var(--c-line-soft);
}

.page-products__kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin: 0 0 0.75rem;
}

.page-products__head-copy h1 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  line-height: 1.12;
  color: var(--c-text-strong);
  margin: 0 0 1rem;
  max-width: 16em;
  letter-spacing: 0.01em;
}

.page-products__lede {
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--c-muted);
  max-width: 38em;
  margin: 0 0 1.5rem;
}

.page-products__head-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-products__status {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: var(--c-bg-2);
  border-left: 3px solid var(--c-accent);
  align-self: stretch;
}

.page-products__status-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--c-muted);
  text-transform: uppercase;
  margin: 0;
}

.page-products__version-badge {
  gap: 1rem;
}

.page-products__status-list {
  border-top: 1px solid var(--c-line-soft);
  margin-top: 0.5rem;
  padding-top: 0.75rem;
}

.page-products__status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--c-line-soft);
  font-size: 0.86rem;
}

.page-products__status-row span {
  color: var(--c-muted);
}

.page-products__status-row strong {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--c-text-strong);
  font-size: 0.84rem;
}

/* ===== 通用区块 ===== */
.page-products__section {
  padding: 3.5rem 0;
  position: relative;
}

.page-products__section--matrix {
  background:
    linear-gradient(135deg, rgba(255, 209, 102, 0.04) 25%, transparent 25%),
    linear-gradient(225deg, rgba(255, 209, 102, 0.04) 25%, transparent 25%);
  background-size: 28px 28px;
  background-position: 0 0, 14px 14px;
  background-color: var(--c-bg-2);
  border-top: 1px solid var(--c-line-soft);
  border-bottom: 1px solid var(--c-line-soft);
}

.page-products__section--timeline {
  background: linear-gradient(180deg, var(--c-bg), var(--c-bg-3));
}

.page-products__section--download {
  background: var(--c-bg-3);
}

/* ===== 亮点区块 ===== */
.page-products__highlights {
  display: grid;
  gap: 2.5rem;
  padding-top: 1rem;
}

.page-products__phone-frame {
  margin: 0;
  max-width: 320px;
  width: 100%;
  margin-inline: auto;
  padding: 1rem 0.75rem 0.75rem;
  background: var(--c-bg-3);
  border-radius: 22px;
  border: 1px solid var(--c-line);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

.page-products__phone-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 280px;
  margin: 0 auto;
  border-radius: 14px;
  object-fit: cover;
  background: #0D2F4F;
}

.page-products__phone-frame figcaption {
  text-align: center;
  font-size: 0.82rem;
  color: var(--c-muted);
  padding-top: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-products__highlights-list {
  display: grid;
  gap: 1.1rem;
}

.page-products__highlight-item {
  position: relative;
  padding: 1.25rem 1.25rem 1.25rem 3.5rem;
  background: rgba(234, 242, 248, 0.04);
  border-left: 2px solid var(--c-accent);
  border-radius: 0 8px 8px 0;
  transition: background var(--transition), transform var(--transition);
}

.page-products__highlight-item:hover {
  background: rgba(234, 242, 248, 0.08);
  transform: translateX(4px);
}

.page-products__hl-idx {
  position: absolute;
  left: 0.9rem;
  top: 1.35rem;
  font-size: 0.8rem;
  color: var(--c-accent-2);
  font-weight: 600;
}

.page-products__highlight-item h3 {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--c-text-strong);
  margin: 0 0 0.4rem;
}

.page-products__highlight-item p {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--c-muted);
  margin: 0;
}

/* ===== 功能矩阵 ===== */
.page-products__tabs {
  display: inline-flex;
  gap: 0.25rem;
  background: var(--c-bg);
  padding: 0.3rem;
  border-radius: 6px;
  margin: 0 0 1.5rem;
  border: 1px solid var(--c-line-soft);
}

.page-products__tab {
  display: inline-block;
  padding: 0.45rem 1.4rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.86rem;
  letter-spacing: 0.05em;
  color: var(--c-muted);
  border-radius: 4px;
  line-height: 1.2;
}

.page-products__tab.is-active {
  background: var(--c-accent);
  color: var(--c-bg-3);
  box-shadow: 0 2px 8px rgba(255, 209, 102, 0.25);
}

.page-products__matrix-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.15rem;
}

.page-products__feature {
  perspective: 900px;
  min-height: 210px;
}

.page-products__feature-inner {
  position: relative;
  height: 210px;
  transition: transform 240ms cubic-bezier(0.2, 0.7, 0.3, 1);
  transform-style: preserve-3d;
}

.page-products__feature-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  padding: 1.4rem 1.5rem;
  border-radius: var(--radius);
  background: var(--c-bg-2);
  border-left: 3px solid var(--c-accent);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-products__feature-face::after {
  content: "";
  position: absolute;
  right: -16px;
  bottom: -16px;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, transparent 49%, rgba(255, 209, 102, 0.12) 50%);
}

.page-products__feature-back {
  transform: rotateY(180deg);
  background: var(--c-panel);
  color: var(--c-bg-3);
  border-left-color: var(--c-accent-2);
}

.page-products__feature-back .page-products__feat-code {
  color: var(--c-accent-2);
}

.page-products__feature-back p {
  color: #29425E;
}

.page-products__feat-code {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--c-accent);
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
}

.page-products__feature-face h3 {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--c-text-strong);
  margin: 0 0 0.5rem;
  line-height: 1.2;
}

.page-products__feature-back h3 {
  color: var(--c-bg-3);
}

.page-products__feature-face p {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--c-muted);
  margin: 0;
}

.page-products__feature-back p {
  color: #29425E;
  font-size: 0.95rem;
}

@media (hover: hover) and (pointer: fine) {
  .page-products__feature:hover .page-products__feature-inner,
  .page-products__feature:focus-within .page-products__feature-inner {
    transform: rotateY(180deg);
  }
}

.page-products__matrix-figure {
  margin: 2.5rem 0 1.5rem;
  text-align: center;
}

.page-products__matrix-figure img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.page-products__matrix-figure figcaption,
.page-products__scenario figcaption,
.page-products__timeline-figure figcaption,
.page-products__dl-figure figcaption {
  font-size: 0.82rem;
  color: var(--c-muted);
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}

.page-products__scenario {
  margin: 0;
  text-align: center;
}

.page-products__scenario img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
}

/* ===== 版本演进 ===== */
.page-products__timeline-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scroll-snap-type: x mandatory;
  padding: 1rem 0 1.25rem;
  scrollbar-width: thin;
  scrollbar-color: var(--c-accent) transparent;
}

.page-products__timeline-scroll::-webkit-scrollbar {
  height: 4px;
}

.page-products__timeline-scroll::-webkit-scrollbar-thumb {
  background: var(--c-accent);
  border-radius: 4px;
}

.page-products__timeline {
  display: flex;
  gap: 1.25rem;
  min-width: max-content;
  padding: 0 0.25rem;
  position: relative;
}

.page-products__timeline::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-accent-2));
  opacity: 0.35;
}

.page-products__version {
  position: relative;
  scroll-snap-align: start;
  width: 240px;
  padding: 1.75rem 1.25rem 1.25rem;
  background: rgba(234, 242, 248, 0.04);
  border-radius: 10px;
  border: 1px solid var(--c-line-soft);
  transition: background var(--transition), transform var(--transition);
}

.page-products__version:hover {
  background: rgba(234, 242, 248, 0.08);
  transform: translateY(-4px);
}

.page-products__version-marker {
  position: absolute;
  top: 9px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c-accent);
  border: 2px solid var(--c-bg);
  box-shadow: 0 0 0 3px rgba(255, 209, 102, 0.2);
  transform: translateY(-50%);
}

.page-products__version--current {
  border-left: 3px solid var(--c-accent-2);
  background: rgba(248, 90, 42, 0.08);
}

.page-products__version-code {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--c-accent);
  letter-spacing: 0.08em;
}

.page-products__version--current .page-products__version-code {
  color: var(--c-accent-2);
}

.page-products__version-year {
  display: inline-block;
  margin-top: 0.35rem;
  padding: 0.15rem 0.55rem;
  background: var(--c-bg-3);
  color: var(--c-muted);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  border-radius: 4px;
}

.page-products__version h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-text-strong);
  margin: 0.9rem 0 0.4rem;
}

.page-products__version--current h3 {
  color: var(--c-accent);
}

.page-products__version p {
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--c-muted);
  margin: 0;
}

.page-products__timeline-figure {
  margin: 2rem 0 0;
  text-align: center;
}

.page-products__timeline-figure img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
}

/* ===== 下载与支持 ===== */
.page-products__dl-grid {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.page-products__dl-panel {
  position: relative;
  overflow: hidden;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.page-products__dl-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--c-accent);
}

.page-products__dl-panel.cut-panel--light::before {
  background: var(--c-accent-2);
}

.page-products__dl-tag {
  margin: 0;
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--c-muted);
  text-transform: uppercase;
}

.page-products__dl-panel h3 {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--c-text-strong);
  margin: 0;
}

.page-products__dl-panel.cut-panel--light h3 {
  color: var(--c-bg-3);
}

.page-products__dl-panel p {
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--c-muted);
  margin: 0 0 0.5rem;
}

.page-products__dl-panel.cut-panel--light p {
  color: #29425E;
}

.page-products__dl-panel .btn {
  align-self: flex-start;
  margin-top: 0.5rem;
}

.page-products__dl-figure {
  margin: 0 0 2.5rem;
  text-align: center;
}

.page-products__dl-figure img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.page-products__support {
  display: grid;
  gap: 1.15rem;
}

.page-products__support-item {
  padding: 1.5rem;
  background: rgba(234, 242, 248, 0.04);
  border-radius: 10px;
  border-top: 2px solid var(--c-accent);
}

.page-products__support-item .mono {
  display: block;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--c-accent);
  margin-bottom: 0.6rem;
}

.page-products__support-item h3 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-text-strong);
  margin: 0 0 0.5rem;
}

.page-products__support-item p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--c-muted);
  margin: 0;
}

.page-products__support-item a {
  color: var(--c-accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 209, 102, 0.4);
  transition: border-color var(--transition), color var(--transition);
}

.page-products__support-item a:hover {
  color: var(--c-accent-strong);
  border-bottom-color: var(--c-accent-strong);
}

/* ===== 桌面端布局 ===== */
@media (min-width: 640px) {
  .page-products__matrix-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products__support {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products__support-item:last-child {
    grid-column: span 2;
  }

  .page-products__dl-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products__highlights-list {
    gap: 1.25rem;
  }
}

@media (min-width: 960px) {
  .page-products__head {
    grid-template-columns: 1.65fr 0.75fr;
    align-items: stretch;
    gap: 3rem;
    padding: 2rem 0 4rem;
  }

  .page-products__highlights {
    grid-template-columns: 320px 1fr;
    gap: 3.5rem;
    align-items: start;
  }

  .page-products__phone-frame {
    max-width: 320px;
    margin-inline: 0 0 0 auto;
  }

  .page-products__matrix-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.35rem;
  }

  .page-products__matrix-figure,
  .page-products__scenario {
    margin-inline: auto;
  }

  .page-products__matrix-figure img {
    max-width: 640px;
  }

  .page-products__scenario img {
    max-width: 420px;
  }

  .page-products__timeline {
    gap: 1.75rem;
  }

  .page-products__version {
    width: 260px;
  }

  .page-products__timeline-figure img {
    max-width: 720px;
  }

  .page-products__dl-figure img {
    max-width: 560px;
  }

  .page-products__support {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products__support-item:last-child {
    grid-column: auto;
  }

  .page-products__section {
    padding: 5rem 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products__feature-inner,
  .page-products__highlight-item,
  .page-products__version {
    transition: none;
  }
}