.page-products {
  position: relative;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ===== 面包屑 ===== */
.page-products__crumb {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px var(--gutter) 0;
}

/* ===== 首屏 Hero ===== */
.page-products__hero {
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px var(--gutter) 64px;
  display: grid;
  gap: 28px;
  position: relative;
}

.page-products__hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, transparent 60%, rgba(255, 75, 43, 0.08) 60%, rgba(255, 75, 43, 0.18) 82%, transparent 82%),
    radial-gradient(circle at 85% 20%, rgba(0, 210, 255, 0.08), transparent 42%);
  pointer-events: none;
}

.page-products__hero::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  right: 12%;
  width: 2px;
  background: linear-gradient(to bottom, transparent, var(--color-orange), var(--color-ice), transparent);
  transform: skewX(-18deg);
  opacity: 0.45;
  pointer-events: none;
}

.page-products__hero-copy,
.page-products__hero-visual {
  position: relative;
  z-index: 1;
}

.page-products__h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.12;
  margin: 10px 0 16px;
  max-width: 620px;
}

.page-products__hero-lead {
  color: var(--color-text-dim);
  max-width: 540px;
  margin: 0;
  font-size: 1rem;
}

.page-products__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0 18px;
}

.page-products__hero-note {
  font-family: var(--font-data);
  font-size: 0.85rem;
  color: var(--color-ice);
  border-left: 3px solid var(--color-orange);
  padding-left: 12px;
  margin: 0;
}

.page-products__hero-visual img {
  width: min(240px, 70vw);
  height: auto;
  max-width: 100%;
  display: block;
  margin: 0 auto;
  border: 1px solid var(--color-line);
  clip-path: var(--clip);
}

/* ===== 关键指标 ===== */
.page-products__stats {
  background: linear-gradient(90deg, var(--color-bg-deep), var(--color-panel));
  border-block: 1px solid var(--color-line);
}

.page-products__stats-row {
  max-width: var(--container);
  margin: 0 auto;
  padding: 28px var(--gutter);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px 16px;
  list-style: none;
}

.page-products__stat {
  position: relative;
  padding: 8px;
}

.page-products__stat + .page-products__stat::before {
  display: none;
  content: "";
  position: absolute;
  left: -8px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--color-line);
  transform: skewX(-12deg);
}

.page-products__stat-num {
  font-family: var(--font-data);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--color-orange);
  margin: 0;
}

.page-products__stat:nth-child(even) .page-products__stat-num {
  color: var(--color-ice);
}

.page-products__stat-label {
  color: var(--color-text-dim);
  font-size: 0.85rem;
  margin: 4px 0 0;
}

/* ===== 章节通用头部 ===== */
.page-products__section-head {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 28px;
}

.page-products__section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin: 4px 0 0;
}

.page-products__section-desc {
  color: var(--color-text-dim);
  max-width: 480px;
  margin: 0;
  font-size: 0.95rem;
}

/* ===== 核心功能 ===== */
.page-products__features {
  padding-block: 0;
}

.page-products__feature-grid {
  display: grid;
  gap: 16px;
}

.page-products__feature-card {
  position: relative;
  padding: 22px;
  border: 1px solid var(--color-line);
  background: var(--color-panel);
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
  overflow: hidden;
}

.page-products__feature-card::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(var(--color-orange), var(--color-ice));
  opacity: 0;
  transition: opacity 0.2s ease;
}

.page-products__feature-card:hover,
.page-products__feature-card:focus-within {
  border-color: var(--color-orange);
  transform: translateY(-4px);
  background: #20242D;
}

.page-products__feature-card:hover::after,
.page-products__feature-card:focus-within::after {
  opacity: 1;
}

.page-products__feature-num {
  position: absolute;
  top: 18px;
  right: 20px;
  font-family: var(--font-data);
  font-size: 1rem;
  color: var(--color-text-dim);
}

.page-products__feature-icon {
  width: 40px;
  height: 40px;
  fill: none;
  stroke: var(--color-ice);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-products__feature-card:nth-child(even) .page-products__feature-icon {
  stroke: var(--color-orange);
}

.page-products__feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin: 16px 0 8px;
}

.page-products__feature-card p {
  color: var(--color-text-dim);
  font-size: 0.92rem;
  margin: 0;
}

.page-products__feature-more {
  margin: 12px 0 0;
  padding-top: 0;
  border-top: 1px solid var(--color-line);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.25s ease, opacity 0.25s ease, padding-top 0.25s ease, margin 0.25s ease;
}

.page-products__feature-card:hover .page-products__feature-more,
.page-products__feature-card:focus-within .page-products__feature-more {
  max-height: 120px;
  opacity: 1;
  padding-top: 12px;
  margin-top: 12px;
}

.page-products__feature-visual {
  margin: 40px auto 0;
  text-align: center;
  border: 1px solid var(--color-line);
  background: var(--color-bg-deep);
  padding: 16px;
  max-width: 560px;
}

.page-products__feature-visual img {
  width: 100%;
  max-width: 350px;
  height: auto;
  display: block;
  margin: 0 auto;
}

.page-products__feature-visual figcaption {
  color: var(--color-text-dim);
  font-family: var(--font-data);
  font-size: 0.8rem;
  margin-top: 10px;
}

/* ===== 版本历史 ===== */
.page-products__versions {
  padding-block: 0;
}

.page-products__timeline {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(260px, 72vw);
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--color-orange) var(--color-line);
}

.page-products__timeline-item {
  min-width: 260px;
  border-left: 2px solid var(--color-line);
  padding: 4px 0 4px 20px;
  position: relative;
}

.page-products__timeline-item::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 8px;
  width: 10px;
  height: 10px;
  background: var(--color-orange);
  transform: rotate(45deg);
}

.page-products__timeline-item:nth-child(even)::before {
  background: var(--color-ice);
}

.page-products__timeline-year {
  font-family: var(--font-data);
  font-size: 0.85rem;
  color: var(--color-ice);
}

.page-products__timeline-item h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 6px 0 8px;
}

.page-products__timeline-item p {
  color: var(--color-text-dim);
  font-size: 0.9rem;
  margin: 0;
}

.page-products__versions-compare {
  display: grid;
  gap: 20px;
  margin-top: 36px;
  align-items: center;
}

.page-products__versions-compare img {
  width: 100%;
  height: auto;
  border: 1px solid var(--color-line);
  clip-path: var(--clip);
}

.page-products__versions-note {
  border: 1px solid var(--color-line);
  padding: 18px;
  background: var(--color-panel);
}

.page-products__versions-note p {
  color: var(--color-text-dim);
  margin: 10px 0 0;
  font-size: 0.92rem;
}

.page-products__articles {
  margin-top: 32px;
  border-top: 1px solid var(--color-line);
  padding-top: 20px;
}

.page-products__articles h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 0 0 12px;
  color: var(--color-ice);
}

.page-products__articles ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

/* ===== 下载与兼容性 ===== */
.page-products__download {
  margin-top: 64px;
  background: linear-gradient(120deg, #2B0F08 0%, #3A1208 30%, var(--color-bg) 72%);
  border-block: 1px solid var(--color-orange);
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 24px;
  padding: 56px var(--gutter) 40px;
}

.page-products__download::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(255, 75, 43, 0.18), transparent 65%);
  pointer-events: none;
}

.page-products__download::after {
  content: "";
  position: absolute;
  left: 20%;
  bottom: -120px;
  width: 300px;
  height: 240px;
  background: radial-gradient(circle, rgba(0, 210, 255, 0.1), transparent 60%);
  transform: skewX(-18deg);
  pointer-events: none;
}

.page-products__download-info,
.page-products__download-aside,
.page-products__download-note {
  position: relative;
  z-index: 1;
}

.page-products__download-info h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin: 6px 0 12px;
}

.page-products__download-desc {
  color: var(--color-text);
  max-width: 560px;
  margin: 0;
}

.page-products__download-list {
  list-style: none;
  padding: 0;
  margin: 24px 0;
  display: grid;
  gap: 12px;
  max-width: 560px;
}

.page-products__download-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding-bottom: 10px;
  font-size: 0.92rem;
}

.page-products__download-list span {
  color: var(--color-text-dim);
}

.page-products__download-list strong {
  font-family: var(--font-data);
  color: var(--color-white);
  font-weight: 500;
  font-size: 0.95rem;
}

.page-products__download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products__download-aside {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  border: 1px solid var(--color-line);
  background: rgba(0, 0, 0, 0.25);
  padding: 24px 16px;
}

.page-products__download-aside img {
  width: 200px;
  height: auto;
  border: 1px solid var(--color-orange);
  padding: 8px;
  background: rgba(0, 0, 0, 0.4);
}

.page-products__download-aside p {
  color: var(--color-text-dim);
  font-size: 0.9rem;
  max-width: 280px;
  margin: 0;
}

.page-products__download-note {
  color: var(--color-text);
}

.page-products__download-note h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.page-products__download-note p {
  color: var(--color-text-dim);
  max-width: 640px;
  margin: 0 0 14px;
}

.page-products__download-note .site-btn {
  margin-top: 4px;
}

.page-products__download-note:target {
  position: fixed;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  z-index: 120;
  width: min(600px, 92vw);
  background: var(--color-panel);
  border: 1px solid var(--color-orange);
  box-shadow: var(--shadow-panel);
  margin: 0;
  padding: 28px;
  max-height: 85vh;
  overflow: auto;
}

/* ===== 服务覆盖 ===== */
.page-products__coverage {
  padding-block: 0;
}

.page-products__coverage-grid {
  display: grid;
  gap: 24px;
  align-items: center;
}

.page-products__coverage-map {
  margin: 0;
  border: 1px solid var(--color-line);
  background:
    linear-gradient(rgba(0, 210, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 210, 255, 0.05) 1px, transparent 1px);
  background-size: 24px 24px;
  padding: 12px;
}

.page-products__coverage-map img {
  width: 100%;
  height: auto;
  display: block;
}

.page-products__coverage-list {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-products__coverage-item {
  padding: 16px 0;
  border-bottom: 1px solid var(--color-line);
  display: grid;
  gap: 6px;
}

.page-products__coverage-item:last-child {
  border-bottom: 0;
}

.page-products__coverage-item dt {
  font-family: var(--font-data);
  font-size: 0.85rem;
  color: var(--color-orange);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page-products__coverage-item:nth-child(even) dt {
  color: var(--color-ice);
}

.page-products__coverage-item dd {
  margin: 0;
  color: var(--color-text-dim);
  font-size: 0.92rem;
}

/* ===== 底部导航区 ===== */
.page-products__next {
  margin-top: 64px;
  background: linear-gradient(100deg, var(--color-bg-deep), #0B1C24 55%, var(--color-bg-deep));
  border-top: 2px solid var(--color-orange);
  border-image: linear-gradient(90deg, var(--color-orange), var(--color-ice)) 1;
  padding: 56px var(--gutter);
}

.page-products__next-title {
  font-family: var(--font-display);
  font-size: 2rem;
  margin: 8px 0 24px;
}

.page-products__next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.page-products__next-note {
  margin-top: 32px;
  color: var(--color-text-dim);
  font-size: 0.85rem;
  border-top: 1px solid var(--color-line);
  padding-top: 16px;
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-products__stats-row {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products__stat + .page-products__stat::before {
    display: block;
  }

  .page-products__download-list li {
    flex-direction: row;
    justify-content: space-between;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-products__hero {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: center;
    padding-top: 64px;
  }

  .page-products__hero-visual {
    order: 2;
  }

  .page-products__hero-visual img {
    width: full;
    width: min(300px, 100%);
  }

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

  .page-products__section-head {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }

  .page-products__section-desc {
    text-align: right;
  }

  .page-products__timeline {
    grid-auto-flow: row;
    grid-auto-columns: unset;
    grid-template-columns: repeat(3, 1fr);
    overflow-x: visible;
  }

  .page-products__versions-compare {
    grid-template-columns: 1.2fr 1fr;
  }

  .page-products__download {
    grid-template-columns: minmax(0, 1.2fr) minmax(220px, 0.8fr);
    align-items: start;
  }

  .page-products__download-info {
    grid-column: 1;
  }

  .page-products__download-aside {
    grid-column: 2;
    grid-row: 1;
    align-self: center;
  }

  .page-products__download-note {
    grid-column: 1 / -1;
  }

  .page-products__coverage-grid {
    grid-template-columns: 1.1fr 1fr;
  }
}