.page-products {
  --pp-line: #C3D0CD;
  --pp-mist-fill: #EEF3F1;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-mono);
  padding-bottom: 48px;
}

.page-products .crumbs {
  padding: 18px 0 2px;
  font-size: 13px;
}

.page-products .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .crumbs a {
  color: var(--clay);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.page-products .crumbs a:hover {
  border-bottom-color: var(--clay);
}

.page-products .crumbs li[aria-current="page"] {
  color: var(--lake);
  font-weight: 700;
}

/* ---------- 首屏 ---------- */
.page-products .hero {
  padding: 22px 0 30px;
  border-bottom: 3px solid var(--clay-deep);
  margin-bottom: 26px;
}

.page-products .kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--clay);
  text-transform: uppercase;
}

.page-products .kicker::before {
  content: "";
  width: 22px;
  height: 3px;
  background: var(--clay);
}

.page-products .hero-grid {
  display: grid;
  gap: 22px;
}

.page-products .hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
}

.page-products .hero-lede {
  max-width: 48ch;
  margin: 0 0 18px;
  font-size: 15.5px;
  line-height: 1.8;
}

.page-products .hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .hero-tags a {
  display: inline-block;
  padding: 6px 10px;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink);
  background: var(--card);
  border: 2px solid var(--clay-deep);
  text-decoration: none;
}

.page-products .hero-tags a:hover {
  background: var(--mist);
}

.page-products .hero-stack {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-products .hero-card {
  background: var(--card);
  border: 3px solid var(--clay-deep);
  box-shadow: var(--shadow-sm);
  padding: 14px 16px;
}

.page-products .hero-card--alert {
  border-left: 10px solid var(--alert);
}

.page-products .hero-card--lake {
  background: var(--lake);
  color: var(--card);
}

.page-products .hero-card__label {
  margin: 0 0 6px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  opacity: 0.82;
}

.page-products .hero-card__title {
  font-family: var(--font-display);
  font-size: 19px;
  line-height: 1.25;
  margin: 0 0 8px;
}

.page-products .hero-card__num {
  font-family: var(--font-display);
  font-size: 34px;
  line-height: 1;
  margin: 0 0 8px;
}

.page-products .hero-card--lake .hero-card__num {
  color: var(--watch);
}

.page-products .hero-card__text {
  margin: 0 0 10px;
  font-size: 13px;
  line-height: 1.7;
}

.page-products .hero-card__text:last-child {
  margin-bottom: 0;
}

.page-products .hero-card__go {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--clay);
  text-decoration: none;
  border-bottom: 2px solid var(--clay);
}

.page-products .hero-card--lake .hero-card__go {
  color: var(--watch);
  border-bottom-color: var(--watch);
}

/* ---------- 主栏与粘性索引 ---------- */
.page-products .shell {
  display: grid;
  gap: 26px;
  padding-top: 4px;
}

.page-products .toc {
  align-self: start;
  border-top: 3px solid var(--clay-deep);
  padding-top: 12px;
}

.page-products .toc__title {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--lake);
}

.page-products .toc__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
}

.page-products .toc__link {
  display: block;
  white-space: nowrap;
  padding: 7px 10px;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink);
  background: var(--card);
  border: 2px solid var(--clay-deep);
  text-decoration: none;
}

.page-products .toc__link:hover {
  background: var(--alert);
  color: var(--ink);
}

/* ---------- 章节通用 ---------- */
.page-products .sec {
  margin-bottom: 46px;
}

.page-products .sec:last-of-type {
  margin-bottom: 0;
}

.page-products .eyebrow {
  margin: 0 0 8px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--clay);
}

.page-products .sec__head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(23px, 4.2vw, 34px);
  line-height: 1.16;
  margin: 0 0 12px;
  padding-left: 14px;
  border-left: 8px solid var(--clay);
}

.page-products .sec__lede {
  max-width: 64ch;
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.8;
}

.page-products .sec a {
  color: var(--clay);
  font-weight: 700;
}

/* ---------- 图片 ---------- */
.page-products .media-frame {
  margin: 0 0 20px;
  border: 3px solid var(--clay-deep);
  background: var(--card);
  box-shadow: var(--shadow-sm);
  padding: 10px;
}

.page-products .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 2px solid var(--clay-deep);
  background: var(--mist);
}

.page-products .media-frame__note {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--lake);
}

.page-products .media-frame--square {
  max-width: 320px;
}

/* ---------- 可折叠分组 ---------- */
.page-products .groups {
  display: grid;
  gap: 12px;
}

.page-products .group {
  border: 3px solid var(--clay-deep);
  background: var(--card);
  box-shadow: var(--shadow-sm);
}

.page-products .expand-trigger {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  text-align: left;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-left: 8px solid transparent;
  cursor: pointer;
}

.page-products .expand-trigger[aria-expanded="true"] {
  border-left-color: var(--alert);
  background: var(--mist);
}

.page-products .group__idx {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--clay);
}

.page-products .group__name {
  flex: 1 1 auto;
}

.page-products .group__count {
  font-size: 12px;
  font-weight: 700;
  color: var(--lake);
}

.page-products .expand-panel {
  padding: 14px 16px 18px;
  border-top: 2px dashed var(--pp-line);
}

/* ---------- 服务清单条目 ---------- */
.page-products .svc-grid {
  display: grid;
  gap: 12px;
}

.page-products .svc {
  border: 2px solid var(--clay-deep);
  background: var(--paper);
  padding: 12px 13px;
}

.page-products .svc h4 {
  font-family: var(--font-display);
  font-size: 15.5px;
  line-height: 1.3;
  margin: 0 0 6px;
}

.page-products .svc p {
  margin: 0 0 10px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--lake);
}

.page-products .svc ul {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .svc li {
  font-size: 11.5px;
  font-weight: 600;
  padding: 3px 7px;
  background: var(--card);
  border: 1px solid var(--pp-line);
  color: var(--ink);
}

/* ---------- 兼容性矩阵 ---------- */
.page-products .matrix-wrap {
  overflow-x: auto;
  border: 2px solid var(--clay-deep);
  background: var(--card);
}

.page-products .matrix {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: 13px;
}

.page-products .matrix caption {
  caption-side: top;
  text-align: left;
  padding: 10px 12px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink);
  background: var(--mist);
  border-bottom: 2px solid var(--clay-deep);
}

.page-products .matrix th {
  text-align: left;
  padding: 9px 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--card);
  background: var(--clay-deep);
  white-space: nowrap;
}

.page-products .matrix td {
  padding: 10px 12px;
  line-height: 1.6;
  vertical-align: top;
  border-bottom: 1px solid var(--pp-line);
}

.page-products .matrix tbody tr:nth-child(even) td {
  background: var(--pp-mist-fill);
}

.page-products .matrix tbody tr:hover td {
  background: var(--mist);
}

.page-products .matrix td:first-child {
  font-weight: 700;
  white-space: nowrap;
}

.page-products .matrix tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .st {
  display: inline-block;
  padding: 2px 8px;
  font-size: 11.5px;
  font-weight: 700;
  white-space: nowrap;
  border: 2px solid var(--clay-deep);
}

.page-products .st--ok {
  background: var(--fix);
  color: var(--card);
}

.page-products .st--watch {
  background: var(--watch);
  color: var(--ink);
}

.page-products .st--fixing {
  background: var(--alert);
  color: var(--ink);
}

.page-products .st--fixed {
  background: var(--card);
  color: var(--fix);
  border-color: var(--fix);
}

.page-products .note-band {
  margin: 18px 0 0;
  padding: 15px 16px;
  background: var(--lake);
  color: var(--card);
  border-left: 10px solid var(--alert);
  font-size: 13.5px;
  line-height: 1.8;
}

/* ---------- 访问路径 ---------- */
.page-products .path-grid {
  display: grid;
  gap: 18px;
}

.page-products .path-col__title {
  font-family: var(--font-display);
  font-size: 19px;
  margin: 0 0 10px;
  padding-bottom: 8px;
  border-bottom: 3px solid var(--clay-deep);
}

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

.page-products .step {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 10px;
  align-items: start;
  padding: 12px 13px;
  background: var(--card);
  border: 2px solid var(--clay-deep);
}

.page-products .step__num {
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.1;
  color: var(--clay);
}

.page-products .step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
}

/* ---------- 障碍排查 ---------- */
.page-products .trouble {
  display: grid;
  gap: 12px;
  margin-bottom: 20px;
}

.page-products .trouble__item {
  background: var(--card);
  border: 3px solid var(--clay-deep);
  box-shadow: var(--shadow-sm);
  padding: 14px 15px;
}

.page-products .trouble__item h3 {
  font-family: var(--font-display);
  font-size: 17px;
  margin: 0 0 8px;
}

.page-products .trouble__sign {
  margin: 0 0 8px;
  padding-left: 10px;
  border-left: 4px solid var(--alert);
  font-size: 13px;
  line-height: 1.65;
  color: var(--lake);
}

.page-products .trouble__fix {
  margin: 0 0 10px;
  font-size: 13.5px;
  line-height: 1.7;
}

.page-products .trouble__go {
  display: inline-block;
  padding: 5px 10px;
  font-size: 12.5px;
  font-weight: 700;
  text-decoration: none;
  color: var(--card);
  background: var(--lake);
  border: 2px solid var(--clay-deep);
}

.page-products .trouble__go:hover {
  background: var(--clay);
}

/* ---------- 支持范围 ---------- */
.page-products .device-grid {
  display: grid;
  gap: 12px;
  margin-bottom: 18px;
}

.page-products .device-card {
  padding: 15px 16px;
  background: var(--clay-deep);
  color: var(--card);
  border: 3px solid var(--clay-deep);
}

.page-products .device-card__num {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 32px;
  line-height: 1;
  color: var(--watch);
}

.page-products .device-card__label {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 700;
}

.page-products .device-card__text {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  opacity: 0.86;
}

.page-products .browser-note {
  background: var(--card);
  border: 3px solid var(--clay-deep);
  border-left: 10px solid var(--lake);
  padding: 15px 16px;
  margin-bottom: 20px;
}

.page-products .browser-note h3 {
  font-family: var(--font-display);
  font-size: 18px;
  margin: 0 0 10px;
}

.page-products .browser-note p {
  margin: 0 0 10px;
  font-size: 13.5px;
  line-height: 1.8;
}

.page-products .browser-note p:last-child {
  margin-bottom: 0;
}

/* ---------- 维护节奏 ---------- */
.page-products .cadence {
  margin: 0;
  padding: 0;
  list-style: none;
  border: 3px solid var(--clay-deep);
  background: var(--card);
}

.page-products .cadence__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 13px 15px;
  border-top: 2px dashed var(--pp-line);
}

.page-products .cadence__row:first-child {
  border-top: 0;
}

.page-products .cadence__k {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--clay);
}

.page-products .cadence__v {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
}

/* ---------- 页底轻提示 ---------- */
.page-products .foot-tip {
  display: block;
  margin-top: 34px;
  padding: 14px 16px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  color: var(--ink);
  background: var(--paper);
  border: 3px solid var(--alert);
  box-shadow: var(--shadow-sm);
}

.page-products .foot-tip:hover {
  background: var(--alert);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-products .svc-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .page-products .cadence__row {
    grid-template-columns: 132px 1fr;
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 760px) {
  .page-products .svc-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

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

@media (min-width: 900px) {
  .page-products .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-products .hero-stack .hero-card:nth-child(2) {
    margin-left: 26px;
  }

  .page-products .hero-stack .hero-card:nth-child(3) {
    margin-left: 12px;
  }

  .page-products .media-frame--square {
    max-width: 360px;
  }
}

@media (min-width: 1000px) {
  .page-products .shell {
    grid-template-columns: 210px minmax(0, 1fr);
    gap: 38px;
    align-items: start;
  }

  .page-products .toc {
    position: sticky;
    top: 16px;
  }

  .page-products .toc__list {
    display: grid;
    gap: 6px;
    overflow-x: visible;
    padding-bottom: 0;
  }

  .page-products .toc__link {
    white-space: normal;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .trouble__go,
  .page-products .foot-tip,
  .page-products .toc__link {
    transition: none;
  }
}
<<<END>>>