.page-products {
  --pf-rail: 268px;
  --pf-card: rgba(14, 33, 56, 0.74);
  --pf-card-soft: rgba(19, 43, 71, 0.55);
  --pf-gap: clamp(26px, 4vw, 54px);
  position: relative;
  overflow-x: hidden;
  background:
    radial-gradient(760px 520px at 92% -6%, rgba(139, 92, 246, 0.24), transparent 66%),
    radial-gradient(680px 480px at 2% 6%, rgba(56, 224, 208, 0.15), transparent 68%),
    var(--ink);
  color: var(--mist);
  font-family: var(--font-body);
  padding-bottom: clamp(56px, 8vw, 110px);
}

.page-products::before {
  content: "";
  position: absolute;
  top: -18%;
  left: -12%;
  right: -12%;
  height: min(820px, 92vh);
  pointer-events: none;
  background:
    radial-gradient(closest-side at 34% 42%, rgba(56, 224, 208, 0.16), transparent 72%),
    radial-gradient(closest-side at 74% 34%, rgba(139, 92, 246, 0.2), transparent 72%);
  animation: pf-breathe 22s ease-in-out infinite;
  z-index: 0;
}

@keyframes pf-breathe {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}

.page-products .pf-shell {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* 面包屑 */
.page-products .pf-crumb {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: clamp(22px, 3vw, 34px);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-products .pf-crumb a {
  color: var(--slate);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.page-products .pf-crumb a:hover {
  color: var(--cyan);
}

.page-products .pf-crumb [aria-current="page"] {
  color: var(--gold);
  letter-spacing: 0.14em;
}

.page-products .pf-crumb-sep {
  opacity: 0.5;
}

/* 首屏 */
.page-products .pf-hero {
  padding: clamp(28px, 4.5vw, 56px) 0 clamp(26px, 3.6vw, 46px);
  border-bottom: 1px solid var(--line);
}

.page-products .pf-h1 {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 5.6vw, 68px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--mist);
  max-width: 22ch;
}

.page-products .pf-lede {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.85;
  color: var(--slate);
}

.page-products .pf-hero-facts {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0;
  margin: clamp(26px, 3.6vw, 42px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line-cyan);
}

.page-products .pf-hero-facts li {
  padding: 16px 18px 6px 0;
  border-right: 1px solid var(--line);
}

.page-products .pf-hero-facts li:last-child {
  border-right: 0;
}

.page-products .pf-fact-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-products .pf-fact-label {
  display: block;
  margin-top: 10px;
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--slate);
}

/* 双栏骨架 */
.page-products .pf-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pf-gap);
  padding-top: clamp(30px, 4.5vw, 60px);
}

/* 侧栏 */
.page-products .pf-rail {
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(10px);
}

.page-products .pf-rail-title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-products .pf-toc {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-products .pf-toc .toc-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--radius-sm);
  color: var(--mist);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-products .pf-toc .toc-link:hover {
  background: rgba(56, 224, 208, 0.1);
  color: var(--cyan);
}

.page-products .pf-toc .toc-link[data-active="true"] {
  background: linear-gradient(90deg, rgba(56, 224, 208, 0.18), rgba(56, 224, 208, 0));
  color: var(--cyan);
}

.page-products .pf-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-products .pf-toc .toc-link[data-active="true"] .pf-num,
.page-products .pf-toc .toc-link:hover .pf-num {
  color: var(--gold);
}

.page-products .pf-rail-note {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate);
}

.page-products .pf-rail-note p {
  margin: 0 0 12px;
}

.page-products .pf-rail-note .btn {
  display: block;
  width: 100%;
  margin-top: 8px;
  text-align: center;
}

/* 内容区 */
.page-products .pf-body {
  display: flex;
  flex-direction: column;
  gap: clamp(48px, 7vw, 92px);
  min-width: 0;
}

.page-products .pf-section {
  min-width: 0;
  scroll-margin-top: 100px;
}

.page-products .pf-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-products .pf-head .section-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-products .pf-sub {
  margin: 14px 0 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--slate);
}

.page-products .pf-text {
  margin: 0 0 16px;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-products .pf-text:last-child {
  margin-bottom: 0;
}

.page-products .pf-h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.2vw, 24px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-products .pf-text a,
.page-products .note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-products .pf-text a:hover,
.page-products .note a:hover {
  color: var(--gold);
  border-color: var(--gold);
}

/* 对比表 */
.page-products .pf-table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--pf-card);
  padding: 4px;
}

.page-products .pf-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14.5px;
  line-height: 1.75;
}

.page-products .pf-table caption {
  text-align: left;
  padding: 14px 16px 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-products .pf-table th,
.page-products .pf-table td {
  padding: 16px;
  text-align: left;
  vertical-align: top;
  border-top: 1px solid var(--line);
}

.page-products .pf-table thead th {
  border-top: 0;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-products .pf-table tbody th {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--cyan);
  white-space: nowrap;
}

.page-products .pf-table thead .pf-col-a {
  color: var(--cyan);
}

.page-products .pf-table thead .pf-col-b {
  color: var(--violet);
}

.page-products .pf-table td.pf-col-a {
  color: var(--mist);
}

.page-products .pf-table td.pf-col-b {
  color: var(--mist);
  background: rgba(139, 92, 246, 0.09);
  border-left: 1px solid var(--line-violet);
}

/* 图文并排 */
.page-products .pf-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 38px);
  align-items: start;
}

.page-products .pf-split-text {
  min-width: 0;
}

.page-products .pf-spec {
  margin: 22px 0 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-products .pf-spec-row {
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-products .pf-spec-row dt {
  margin-bottom: 8px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-products .pf-spec-row dd {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--slate);
}

/* 图片容器 */
.page-products .pf-figure {
  margin: 0;
  min-width: 0;
}

.page-products .pf-wide {
  margin: clamp(20px, 3vw, 32px) 0 0;
}

.page-products .pf-figure figcaption,
.page-products .pf-wide figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .media-frame {
  display: grid;
  position: relative;
  overflow: hidden;
  max-width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(140deg, rgba(56, 224, 208, 0.14), rgba(139, 92, 246, 0.18) 58%, rgba(7, 20, 38, 0.92));
}

.page-products .media-frame img {
  grid-area: 1 / 1;
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.page-products .media-frame--wide {
  aspect-ratio: 1400 / 600;
}

.page-products .media-frame--panel {
  aspect-ratio: 1400 / 900;
}

.page-products .media-frame--tall {
  aspect-ratio: 900 / 1200;
}

/* 分类直达补充段落 */
.page-products .pf-grid2 {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 30px);
  margin-top: clamp(20px, 3vw, 32px);
}

/* 专注模式 */
.page-products .pf-focus {
  margin-top: clamp(24px, 3.6vw, 42px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 34px);
  align-items: center;
  padding: clamp(18px, 3vw, 32px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-violet);
  background: linear-gradient(150deg, rgba(139, 92, 246, 0.16), rgba(7, 20, 38, 0.62));
}

.page-products .pf-figure--narrow .media-frame {
  max-height: 420px;
}

/* 三张能力小卡 */
.page-products .pf-cards3 {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products .pf-mini {
  padding: 20px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--pf-card);
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-products .pf-mini:hover {
  transform: translateY(-2px);
  border-color: var(--line-cyan);
}

.page-products .pf-mini-num {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-products .pf-mini h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--mist);
}

.page-products .pf-mini p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

/* 阶梯卡片 */
.page-products .pf-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-products .pf-step {
  padding: 18px 16px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  background: linear-gradient(160deg, rgba(27, 46, 74, 0.55), rgba(7, 20, 38, 0.8));
  transition: border-color 0.2s var(--ease);
}

.page-products .pf-step:nth-child(2) {
  border-top-color: var(--violet);
}

.page-products .pf-step:nth-child(3) {
  border-top-color: var(--gold);
}

.page-products .pf-step:nth-child(4) {
  border-top-color: var(--mint);
}

.page-products .pf-step:nth-child(5) {
  border-top-color: var(--cyan);
}

.page-products .pf-step:hover {
  border-color: var(--line-cyan);
}

.page-products .pf-step-time {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-products .pf-step h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 700;
  color: var(--mist);
}

.page-products .pf-step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--slate);
}

/* 适用场景 */
.page-products .pf-fit-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-products .pf-fit-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--pf-card);
}

.page-products .pf-fit-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--mist);
}

.page-products .pf-fit-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

.page-products .pf-fit-card .pf-fit-path {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

/* 步骤列表 */
.page-products .pf-steps-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-products .pf-steps-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.page-products .pf-steps-list li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-products .pf-step-idx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--gold);
  padding-top: 3px;
}

.page-products .pf-steps-list h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--mist);
}

.page-products .pf-steps-list p {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--slate);
}

/* 收尾 */
.page-products .pf-next {
  margin-top: clamp(26px, 3.6vw, 40px);
  padding: clamp(20px, 3vw, 32px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-cyan);
  background: linear-gradient(130deg, rgba(56, 224, 208, 0.1), rgba(139, 92, 246, 0.13) 72%, rgba(7, 20, 38, 0.6));
}

.page-products .pf-next-text {
  margin: 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-products .pf-next-text a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
}

.page-products .pf-next-text a:hover {
  color: var(--gold);
  border-color: var(--gold);
}

.page-products .pf-next-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 20px 0 6px;
}

.page-products .pf-next .note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate);
}

@media (prefers-reduced-motion: reduce) {
  .page-products::before {
    animation: none;
  }

  .page-products .pf-mini,
  .page-products .pf-step,
  .page-products .pf-toc .toc-link {
    transition: none;
  }
}

/* 平板及以上 */
@media (min-width: 760px) {
  .page-products .pf-grid2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-products .pf-split {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.76fr);
  }

  .page-products .pf-cards3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pf-fit-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .media-frame--tall {
    max-height: 540px;
  }
}

@media (min-width: 860px) {
  .page-products .pf-focus {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.7fr);
  }
}

/* 阶梯排布 */
@media (min-width: 900px) {
  .page-products .pf-steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    align-items: end;
  }

  .page-products .pf-step:nth-child(2) {
    transform: translateY(-16px);
  }

  .page-products .pf-step:nth-child(3) {
    transform: translateY(-32px);
  }

  .page-products .pf-step:nth-child(4) {
    transform: translateY(-48px);
  }

  .page-products .pf-step:nth-child(5) {
    transform: translateY(-64px);
  }
}

/* 桌面双栏 */
@media (min-width: 1000px) {
  .page-products .pf-layout {
    grid-template-columns: var(--pf-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pf-rail {
    position: sticky;
    top: 96px;
    max-height: calc(100vh - 124px);
    overflow-y: auto;
  }
}
<<<END>>>