/* ===== 解决方案页：技术说明书布局 ===== */
.page-products {
  --pp-side: 288px;
  --pp-tilt: -2deg;
  background: var(--c-paper);
  padding-top: var(--space-3);
}

.page-products .breadcrumb {
  margin-bottom: var(--space-4);
}

.page-products .mono {
  font-family: var(--font-mono);
}

.page-products .btn {
  transform: skewX(var(--pp-tilt));
  transition: background-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.page-products .btn:hover {
  transform: skewX(var(--pp-tilt)) translateY(-2px);
  box-shadow: var(--shadow-btn-hover);
}

.page-products a:focus-visible,
.page-products button:focus-visible {
  outline: 3px solid var(--c-volt);
  outline-offset: 2px;
}

/* 首屏标题区 */
.page-products__intro {
  position: relative;
  overflow: hidden;
  color: var(--c-white);
  background: linear-gradient(135deg, var(--c-navy) 0%, #0f2c52 100%);
  border-top: var(--border-thick);
  border-bottom: var(--border-thick);
}

.page-products__intro::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    -55deg,
    rgba(215, 255, 0, 0.07) 0,
    rgba(215, 255, 0, 0.07) 2px,
    transparent 2px,
    transparent 14px
  );
}

.page-products__intro-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-5);
  padding-top: var(--space-7);
  padding-bottom: var(--space-7);
}

.page-products__kicker {
  color: var(--c-volt);
  font-size: 0.8125rem;
  letter-spacing: 0.14em;
  margin-bottom: var(--space-3);
}

.page-products__page-title {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--c-white);
  transform: skewX(var(--pp-tilt));
  transform-origin: left bottom;
  margin-bottom: var(--space-4);
}

.page-products__title-detail {
  display: inline-block;
  font-size: 0.62em;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.86);
}

.page-products__intro-copy .lead {
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.125rem;
  line-height: 1.8;
  max-width: 44em;
  margin-bottom: 0;
}

/* 首屏数据统计 */
.page-products__stat-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  align-content: center;
}

.page-products__stat {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-2);
  min-height: 92px;
  padding: var(--space-4) var(--space-3);
  background: rgba(10, 27, 42, 0.45);
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.page-products__stat-num {
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  line-height: 1;
  color: var(--c-volt);
}

.page-products__stat-label {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.82);
}

/* 主体两栏 */
.page-products__layout {
  display: grid;
  gap: var(--space-5);
  align-items: start;
  padding-top: var(--space-6);
  padding-bottom: var(--space-8);
}

/* 左侧目录 */
.page-products__side {
  margin-bottom: var(--space-3);
}

.page-products__side-inner {
  padding: var(--space-4);
  background: var(--c-white);
  border: var(--border-medium);
  box-shadow: var(--shadow-card);
}

.page-products__side-label {
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-3);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--c-muted);
  border-bottom: var(--border-thin);
}

.page-products__toc {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  margin-right: calc(var(--space-4) * -1);
  padding-right: var(--space-4);
}

.page-products__toc .toc__link {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  color: var(--c-navy);
  background: var(--c-white);
  border: var(--border-thin);
  transition: background-color 160ms ease, color 160ms ease, padding-left 160ms ease;
}

.page-products__toc .toc__link::before {
  content: "▸";
  color: var(--c-volt);
  font-size: 0.8em;
}

.page-products__toc .toc__link:hover,
.page-products__toc .toc__link.is-active {
  background: var(--c-volt);
  color: var(--c-navy);
  padding-left: 18px;
}

.page-products__side-note {
  padding: var(--space-3);
  margin-top: var(--space-4);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--c-steel);
  background: var(--c-paper);
  border-left: 4px solid var(--c-orange);
}

.page-products__side-note p {
  margin: 0;
}

/* 文档分区 */
.page-products__section {
  margin-bottom: var(--space-7);
  background: var(--c-white);
  border: var(--border-thick);
  box-shadow: var(--shadow-card);
}

.page-products__section-head {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5);
  color: var(--c-white);
  background: var(--c-navy);
  border-bottom: var(--border-thick);
}

.page-products__num {
  min-width: 2ch;
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1;
  color: var(--c-volt);
}

.page-products__section-title {
  margin: 0 0 var(--space-1);
  font-family: var(--font-title);
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  font-weight: 800;
  line-height: 1.15;
  font-style: italic;
}

.page-products__section-sub {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.66);
}

.page-products__section-body {
  padding: var(--space-5);
  overflow-x: auto;
}

/* 图文网格 */
.page-products__figure {
  margin: var(--space-5) 0;
  padding: var(--space-2);
  background: var(--c-paper);
  border: var(--border-thin);
}

.page-products__figure:first-child {
  margin-top: 0;
}

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

.page-products__copy p {
  margin-top: 0;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--c-ink);
}

.page-products__list {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
}

.page-products__list li {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  padding: 12px 0;
  font-size: 0.9375rem;
  color: var(--c-ink);
  border-bottom: 1px solid var(--c-line);
}

.page-products__list .mono {
  min-width: 7.5em;
  font-size: 0.8125rem;
  color: var(--c-steel);
}

.page-products__code-row,
.page-products__download-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: var(--c-paper);
  border: var(--border-thin);
}

.page-products__code-label {
  width: 100%;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

.page-products__code-value {
  margin-right: auto;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--c-navy);
}

.page-products__hint {
  padding: 12px;
  margin-top: var(--space-4);
  font-size: 0.8125rem;
  color: var(--c-steel);
  background: var(--c-white);
  border: 2px dashed var(--c-line);
}

.page-products__copy-btn {
  margin-top: var(--space-2);
}

/* 步骤条 */
.page-products__steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: var(--space-5) 0;
}

.page-products__step {
  padding: var(--space-4);
  background: var(--c-white);
  border: var(--border-medium);
}

.page-products__step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin-bottom: var(--space-3);
  font-size: 0.9375rem;
  font-weight: 800;
  color: var(--c-navy);
  background: var(--c-volt);
  border-radius: 50%;
}

.page-products__step h3 {
  margin: 0 0 var(--space-2);
  font-size: 1.0625rem;
  color: var(--c-ink);
}

.page-products__step p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--c-steel);
}

.page-products__step-divider {
  width: 2px;
  height: 20px;
  margin-left: 16px;
  background: var(--c-line);
}

/* 下载条深色变体 */
.page-products__download-strip {
  background: var(--c-navy);
  border-color: var(--c-navy);
}

.page-products__download-strip .page-products__code-label {
  color: var(--c-volt);
}

.page-products__download-strip .page-products__code-value {
  color: var(--c-white);
}

/* 对比表格 */
.page-products__table {
  width: 100%;
  min-width: 560px;
  margin: var(--space-5) 0;
  font-size: 0.9375rem;
  border-collapse: collapse;
  border: var(--border-thick);
}

.page-products__table th {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-align: left;
  color: var(--c-white);
  background: var(--c-navy);
  border: 2px solid var(--c-navy);
}

.page-products__table td {
  padding: 12px 16px;
  color: var(--c-ink);
  border: 2px solid var(--c-line);
}

.page-products__table tbody tr:hover {
  background: var(--c-volt);
}

.page-products__note-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

/* 平板权益手风琴 */
.page-products__accordion {
  margin: var(--space-5) 0;
  background: var(--c-white);
  border: var(--border-medium);
}

.page-products__accordion .accordion__item {
  border-bottom: var(--border-thin);
}

.page-products__accordion .accordion__item:last-child {
  border-bottom: 0;
}

.page-products__accordion .accordion__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 18px 20px;
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 700;
  text-align: left;
  color: var(--c-navy);
  background: var(--c-white);
  border: 0;
  cursor: pointer;
}

.page-products__accordion .accordion__toggle:hover {
  background: var(--c-paper);
}

.page-products__accordion .accordion__panel {
  display: block;
  padding: 0 20px 20px;
  background: var(--c-white);
}

.page-products__accordion .accordion__panel p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--c-steel);
}

.page-products__accordion .accordion__icon {
  flex: 0 0 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  font-size: 1rem;
  color: var(--c-volt);
  background: var(--c-navy);
  border: 2px solid var(--c-navy);
}

.page-products__accordion .accordion__icon::before {
  content: "+";
  line-height: 1;
}

.page-products__accordion .accordion__toggle.is-active .accordion__icon::before {
  content: "−";
}

/* 常见组合 */
.page-products__combo-grid {
  display: grid;
  gap: var(--space-5);
  margin-top: var(--space-5);
}

.page-products__combo {
  position: relative;
  padding: var(--space-5);
  padding-top: calc(var(--space-5) + 20px);
  background: var(--c-white);
  border: var(--border-thin);
}

.page-products__combo-num {
  position: absolute;
  top: -20px;
  left: var(--space-5);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--c-navy);
  background: var(--c-volt);
  border: var(--border-thin);
}

.page-products__combo h3 {
  margin: 0 0 var(--space-3);
  font-size: 1.125rem;
  color: var(--c-ink);
}

.page-products__combo p {
  margin: 0 0 var(--space-4);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--c-steel);
}

/* 底部服务路径 */
.page-products__network {
  margin-top: var(--space-8);
  color: var(--c-white);
  background: var(--c-navy);
  border: var(--border-thick);
  box-shadow: var(--shadow-card);
}

.page-products__network .page-products__figure {
  margin: 0;
  padding: 0;
  background: transparent;
  border: 0;
  border-bottom: var(--border-thin);
}

.page-products__network-copy {
  padding: var(--space-6);
}

.page-products__network-copy h2 {
  margin: 0 0 var(--space-3);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-style: italic;
}

.page-products__network-copy p {
  margin: 0 0 var(--space-5);
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.88);
}

.page-products__route {
  display: block;
  width: 100%;
  max-width: 480px;
  height: auto;
  margin-bottom: var(--space-5);
  color: rgba(255, 255, 255, 0.75);
}

.page-products__network-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* ===== 桌面端：说明书双栏成型 ===== */
@media (min-width: 1024px) {
  .page-products__intro-grid {
    grid-template-columns: 1fr 340px;
    gap: var(--space-7);
    align-items: center;
  }

  .page-products__layout {
    grid-template-columns: var(--pp-side) minmax(0, 1fr);
    gap: var(--space-6);
  }

  .page-products__side {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
  }

  .page-products__toc {
    display: block;
    overflow: visible;
    margin-right: 0;
    padding-right: 0;
  }

  .page-products__toc .toc__link {
    display: flex;
    justify-content: flex-start;
    padding: 13px 8px;
    white-space: normal;
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--c-line);
  }

  .page-products__toc .toc__link:hover,
  .page-products__toc .toc__link.is-active {
    padding-left: 14px;
  }

  .page-products__section-body--split {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: var(--space-6);
    align-items: start;
  }

  .page-products__section-body--split .page-products__figure {
    margin-top: 0;
  }

  .page-products__steps {
    display: grid;
    grid-template-columns: 1fr 44px 1fr 44px 1fr;
    gap: 0;
    margin-top: var(--space-6);
  }

  .page-products__step-divider {
    width: 44px;
    height: 2px;
    margin: 24px 0 0;
    background: var(--c-line);
  }

  .page-products__combo-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
  }

  .page-products__network {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
  }

  .page-products__network .page-products__figure {
    border-right: var(--border-thin);
    border-bottom: 0;
  }
}