.page-products {
  --products-clip: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  position: relative;
  background:
    radial-gradient(ellipse at 88% 8%, rgba(138, 43, 226, 0.14) 0%, transparent 55%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-ocean) 48%, var(--bg-deep) 100%);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.75;
  overflow-x: hidden;
}

/* ========== Hero ========== */
.page-products .products-hero {
  position: relative;
  padding: 2rem 1.25rem 2.5rem;
  border-bottom: 1px solid var(--line);
  background:
    repeating-linear-gradient(-45deg, rgba(255, 255, 255, 0.02) 0 1px, transparent 1px 12px),
    linear-gradient(120deg, rgba(30, 144, 255, 0.06) 0%, transparent 60%);
}

.page-products .breadcrumbs {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 1.75rem;
  letter-spacing: 0.06em;
}

.page-products .breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.25s ease;
}

.page-products .breadcrumbs a:hover {
  color: var(--lime);
}

.page-products .products-hero__grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  gap: 1.5rem;
}

.page-products .products-hero__main .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--accent);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.page-products .products-hero__main .display-title {
  font-family: var(--font-headline);
  font-size: 2rem;
  line-height: 1.15;
  margin: 0 0 1rem;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-products .products-hero__lead {
  font-size: 1rem;
  color: var(--muted);
  max-width: 64ch;
  margin-bottom: 1.5rem;
}

.page-products .products-hero__lead a {
  color: var(--blue);
  text-decoration: underline;
  text-decoration-color: rgba(30, 144, 255, 0.4);
  text-underline-offset: 4px;
  transition: color 0.25s ease, text-decoration-color 0.25s ease;
}

.page-products .products-hero__lead a:hover {
  color: var(--lime);
  text-decoration-color: var(--lime);
}

.page-products .products-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
}

.page-products .products-hero__aside {
  padding-top: 0.5rem;
  border-top: 1px solid var(--line);
}

.page-products .products-hero__track {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.9;
  letter-spacing: 0.32em;
  color: rgba(57, 255, 20, 0.55);
  writing-mode: vertical-rl;
}

.page-products .products-hero__note {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0;
}

/* ========== Layout ========== */
.page-products .products-layout {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem 3.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.page-products .products-layout .site-layout__rail {
  order: -1;
}

.page-products .site-layout__rail-title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  margin-bottom: 0.75rem;
}

.page-products .site-layout__rail-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-products .site-layout__rail-link {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  font-size: 0.8125rem;
  font-family: var(--font-body);
  color: var(--muted);
  text-decoration: none;
  border: 1px solid transparent;
  background: rgba(18, 42, 76, 0.6);
  transition: color 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.page-products .site-layout__rail-link:hover,
.page-products .site-layout__rail-link.is-active {
  color: var(--lime);
  border-color: var(--lime);
}

.page-products .site-layout__main {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  min-width: 0;
}

/* ========== Section 通用 ========== */
.page-products .products-section {
  scroll-margin-top: 6rem;
}

.page-products .products-section .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--accent);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.page-products .products-section .section-title {
  font-family: var(--font-headline);
  font-size: 1.5rem;
  line-height: 1.2;
  margin: 0 0 1rem;
  color: var(--ink);
  position: relative;
  padding-left: 1rem;
}

.page-products .products-section .section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2em;
  bottom: 0.2em;
  width: 4px;
  background: linear-gradient(180deg, var(--accent), var(--lime));
}

.page-products .products-section__lead {
  color: var(--muted);
  max-width: 72ch;
  margin-bottom: 1.5rem;
}

.page-products .products-section__sub {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--muted);
  margin-bottom: 1.5rem;
}

.page-products .products-section a {
  color: var(--blue);
  text-decoration: underline;
  text-decoration-color: rgba(30, 144, 255, 0.4);
  text-underline-offset: 4px;
  transition: color 0.25s ease, text-decoration-color 0.25s ease;
}

.page-products .products-section a:hover {
  color: var(--lime);
  text-decoration-color: var(--lime);
}

.page-products .products-section--rule {
  position: relative;
  padding: 1.75rem;
  background:
    radial-gradient(ellipse at 100% 0%, rgba(255, 215, 0, 0.1) 0%, transparent 50%),
    linear-gradient(160deg, rgba(18, 42, 76, 0.9) 0%, rgba(11, 29, 58, 0.95) 100%);
  border: 1px solid rgba(255, 215, 0, 0.25);
  border-top: 4px solid var(--yellow);
}

.page-products .products-section--alt {
  position: relative;
  padding-top: 2rem;
  border-top: 1px dashed var(--line);
}

/* ========== 分类标签总览 ========== */
.page-products .cat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.page-products .cat-card {
  position: relative;
  padding: 1.25rem 1rem 1.25rem;
  background: linear-gradient(145deg, rgba(18, 42, 76, 0.9), rgba(11, 29, 58, 0.95));
  border: 1px solid var(--line);
  clip-path: var(--products-clip);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  cursor: help;
  outline: none;
}

.page-products .cat-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--blue);
}

.page-products .cat-card:nth-child(2)::before {
  background: var(--accent);
}

.page-products .cat-card:nth-child(3)::before {
  background: var(--lime);
}

.page-products .cat-card:nth-child(4)::before {
  background: var(--yellow);
}

.page-products .cat-card:nth-child(5)::before {
  background: var(--accent);
}

.page-products .cat-card:nth-child(6)::before {
  background: var(--muted);
}

.page-products .cat-card:hover,
.page-products .cat-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 12px 32px rgba(138, 43, 226, 0.25);
}

.page-products .cat-card__index {
  position: absolute;
  top: 0.75rem;
  right: 0.875rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--muted);
  letter-spacing: 0.12em;
}

.page-products .cat-card__icon {
  margin-bottom: 0.75rem;
  filter: drop-shadow(0 4px 12px rgba(138, 43, 226, 0.3));
}

.page-products .cat-card svg {
  display: block;
  max-width: 48px;
  height: auto;
}

.page-products .cat-card h3 {
  font-family: var(--font-headline);
  font-size: 1rem;
  margin: 0 0 0.375rem;
}

.page-products .cat-card p {
  font-size: 0.8125rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.6;
}

/* ========== 规则摘要机制 ========== */
.page-products .rule-demo {
  margin: 1.5rem 0;
  border: 1px solid var(--line);
  background: var(--bg-ocean);
  clip-path: var(--products-clip);
  overflow: hidden;
}

.page-products .rule-demo__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.875rem 1.25rem;
  border-bottom: 1px dashed var(--line);
  background: rgba(255, 215, 0, 0.06);
}

.page-products .rule-demo__code {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--yellow);
  letter-spacing: 0.16em;
}

.page-products .rule-demo__list {
  display: grid;
  gap: 0.875rem;
  padding: 1.25rem;
  margin: 0;
}

.page-products .rule-demo__list div {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 1rem;
  align-items: baseline;
}

.page-products .rule-demo__list dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--lime);
  letter-spacing: 0.1em;
}

.page-products .rule-demo__list dd {
  font-size: 0.875rem;
  color: var(--ink);
  margin: 0;
}

.page-products .site-rule {
  margin: 1.5rem 0;
  padding: 1.25rem 1.5rem;
  background: linear-gradient(90deg, rgba(255, 215, 0, 0.12) 0%, rgba(255, 215, 0, 0.03) 100%);
  border-left: 6px solid var(--yellow);
  clip-path: var(--products-clip);
}

.page-products .site-rule__title {
  display: block;
  font-family: var(--font-headline);
  font-size: 1.125rem;
  color: var(--yellow);
  margin-bottom: 0.375rem;
}

.page-products .site-rule p {
  font-size: 0.875rem;
  color: var(--ink);
  margin: 0;
}

/* ========== 核心解决方案 ========== */
.page-products .solution-list {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

.page-products .solution-item {
  display: flex;
  gap: 1rem;
  padding: 1.25rem 1.25rem 1.25rem 1rem;
  background: linear-gradient(135deg, rgba(18, 42, 76, 0.82), rgba(11, 29, 58, 0.9));
  border: 1px solid var(--line);
  position: relative;
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.page-products .solution-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--accent);
}

.page-products .solution-item:hover {
  border-color: rgba(138, 43, 226, 0.6);
  transform: translateX(4px);
}

.page-products .solution-item__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--lime);
  padding-top: 0.2rem;
  flex-shrink: 0;
}

.page-products .solution-item__content h3 {
  font-family: var(--font-headline);
  font-size: 1rem;
  margin: 0 0 0.375rem;
}

.page-products .solution-item__content p {
  font-size: 0.875rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.65;
}

/* ========== 访问指南 ========== */
.page-products .access-grid {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

.page-products .access-card {
  padding: 1.25rem;
  border: 1px solid var(--line);
  background: var(--bg-ocean);
  position: relative;
  transition: background 0.25s ease, border-color 0.25s ease;
}

.page-products .access-card:hover {
  background: rgba(18, 42, 76, 0.7);
  border-color: var(--blue);
}

.page-products .access-card h3 {
  font-family: var(--font-headline);
  font-size: 1rem;
  margin: 0.75rem 0 0.375rem;
}

.page-products .access-card p {
  font-size: 0.875rem;
  color: var(--muted);
  margin: 0;
}

/* ========== 功能特色 ========== */
.page-products .feature-band {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.page-products .feature-band__item {
  padding: 1.25rem 1rem;
  background: linear-gradient(145deg, rgba(138, 43, 226, 0.14) 0%, rgba(11, 29, 58, 0.8) 100%);
  border: 1px solid rgba(138, 43, 226, 0.3);
  text-align: center;
  clip-path: var(--products-clip);
}

.page-products .feature-band__value {
  display: block;
  font-family: var(--font-headline);
  font-size: 1.875rem;
  line-height: 1.1;
  color: var(--lime);
}

.page-products .feature-band__label {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.375rem;
  letter-spacing: 0.05em;
}

.page-products .feature-note {
  padding: 1.25rem 1.5rem;
  background: rgba(30, 144, 255, 0.08);
  border-left: 4px solid var(--blue);
  margin-bottom: 2rem;
}

.page-products .feature-note p {
  font-size: 0.875rem;
  color: var(--ink);
  margin: 0;
  max-width: 72ch;
}

/* ========== 图片媒体 ========== */
.page-products .products-media {
  margin: 2rem 0 0;
}

.page-products .products-media img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  object-fit: cover;
  clip-path: var(--products-clip);
  background: var(--bg-ocean);
}

.page-products .products-media figcaption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  padding-top: 0.625rem;
  letter-spacing: 0.04em;
}

.page-products .products-media--feature img {
  max-width: 640px;
}

/* ========== 响应式：平板 ========== */
@media (min-width: 768px) {
  .page-products .cat-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .page-products .feature-band {
    grid-template-columns: repeat(4, 1fr);
  }

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

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

  .page-products .site-layout__rail-list {
    gap: 0.625rem;
  }
}

/* ========== 响应式：桌面 ========== */
@media (min-width: 1024px) {
  .page-products .products-hero {
    padding: 3rem 1.5rem 3.5rem;
  }

  .page-products .products-hero__grid {
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 2.5rem;
    align-items: center;
  }

  .page-products .products-hero__aside {
    display: block;
    border-top: 0;
    border-left: 1px solid var(--line);
    padding-left: 1.75rem;
  }

  .page-products .products-hero__track {
    display: block;
    margin-bottom: 1.25rem;
  }

  .page-products .products-hero__main .display-title {
    font-size: 2.5rem;
  }

  .page-products .products-layout {
    flex-direction: row;
    gap: 3rem;
    padding: 3.5rem 1.5rem;
  }

  .page-products .products-layout .site-layout__rail {
    width: 200px;
    flex-shrink: 0;
    position: sticky;
    top: 6rem;
    align-self: flex-start;
    order: 0;
  }

  .page-products .site-layout__rail-list {
    flex-direction: column;
    gap: 0.375rem;
  }

  .page-products .site-layout__rail-link {
    display: block;
    padding: 0.5rem 0.875rem;
    font-size: 0.875rem;
    border: 0;
    background: transparent;
    position: relative;
  }

  .page-products .site-layout__rail-link::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.5em;
    bottom: 0.5em;
    width: 0;
    background: var(--lime);
    transition: width 0.25s ease;
  }

  .page-products .site-layout__rail-link:hover {
    color: var(--lime);
    border-color: transparent;
  }

  .page-products .site-layout__rail-link.is-active {
    color: var(--lime);
    border-color: transparent;
  }

  .page-products .site-layout__rail-link.is-active::before {
    width: 4px;
  }

  .page-products .site-layout__main {
    flex: 1;
    gap: 4.5rem;
  }

  .page-products .products-section .section-title {
    font-size: 1.75rem;
  }
}