.page-products {
  --pf-radius: 18px;
  --pf-edge: 1px solid rgba(20, 17, 15, 0.14);
  --pf-soft: rgba(20, 17, 15, 0.06);
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

.page-products .pf-crumb {
  padding-top: clamp(18px, 3vw, 28px);
}

.page-products .pf-intro {
  padding: clamp(20px, 4vw, 44px) 0 clamp(28px, 5vw, 56px);
}

.page-products .pf-intro__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  grid-template-columns: 1fr;
  align-items: start;
}

.page-products .pf-intro__annotation {
  display: block;
  font-family: var(--font-mono);
  letter-spacing: 0.14em;
  color: var(--slate);
  margin-bottom: 14px;
}

.page-products .pf-intro__title {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(38px, 8vw, 78px);
  line-height: 0.98;
  letter-spacing: -0.03em;
  margin: 0 0 20px;
}

.page-products .pf-intro__title::after {
  content: "";
  display: block;
  width: 74px;
  height: 5px;
  margin-top: 18px;
  background: var(--orange);
}

.page-products .pf-intro__lede {
  max-width: 46ch;
  font-family: var(--font-serif);
  color: var(--ink-2);
}

.page-products .pf-intro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .pf-intro__index {
  background: var(--paper-warm);
  border-radius: 4px 26px 4px 26px;
  padding: clamp(20px, 4vw, 30px);
  position: relative;
}

.page-products .pf-intro__index::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 4px;
  background: var(--orange);
  border-radius: 2px;
}

.page-products .pf-intro__index-title {
  margin: 0 0 14px 12px;
  color: var(--slate);
}

.page-products .pf-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-products .pf-index__item {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas: "num link" "num note";
  column-gap: 14px;
  row-gap: 2px;
  padding: 12px 0 12px 12px;
  border-top: var(--pf-edge);
}

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

.page-products .pf-index__num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--orange);
  padding-top: 5px;
}

.page-products .pf-index__link {
  grid-area: link;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(17px, 2.4vw, 20px);
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  justify-self: start;
}

.page-products .pf-index__link:hover,
.page-products .pf-index__link:focus-visible {
  border-bottom-color: var(--orange);
}

.page-products .pf-index__note {
  grid-area: note;
  font-family: var(--font-serif);
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .pf-body {
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-products .pf-layout {
  align-items: start;
}

.page-products .pf-layout__side {
  position: relative;
}

.page-products .pf-toc {
  position: sticky;
  top: 96px;
  border-left: 2px solid var(--pf-soft);
  padding-left: 16px;
}

.page-products .pf-toc .toc__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-products .pf-toc .toc__link {
  display: block;
  padding: 7px 0;
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px dashed transparent;
}

.page-products .pf-toc .toc__link:hover,
.page-products .pf-toc .toc__link:focus-visible,
.page-products .pf-toc .toc__link[aria-current="true"] {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-products .pf-section {
  padding: clamp(34px, 5vw, 56px) 0;
  border-top: var(--pf-edge);
}

.page-products .pf-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .pf-section__head {
  max-width: 62ch;
  margin-bottom: clamp(22px, 3.4vw, 34px);
}

.page-products .pf-section__title {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(24px, 4.2vw, 38px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 12px 0 14px;
}

.page-products .pf-section__intro {
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-2);
  margin: 0;
}

.page-products .pf-figure {
  margin: clamp(22px, 3.4vw, 34px) 0 0;
}

.page-products .pf-figure--flush {
  margin-top: 0;
  margin-bottom: clamp(20px, 3vw, 28px);
}

.page-products .pf-figure .media__img,
.page-products .pf-figure img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: var(--pf-radius);
}

.page-products .pf-figure .media__caption {
  margin-top: 10px;
  font-family: var(--font-serif);
  font-size: 12px;
  line-height: 1.7;
  color: var(--slate);
}

/* 服务矩阵 */
.page-products .pf-matrix {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
}

.page-products .pf-svc {
  background: var(--paper-warm);
  border-radius: 3px 20px 3px 20px;
  padding: 0;
  border: 1px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease;
}

.page-products .pf-svc[open] {
  background: var(--orange-soft);
  border-color: rgba(232, 93, 42, 0.4);
}

.page-products .pf-svc__summary {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 14px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  align-items: baseline;
}

.page-products .pf-svc__summary::-webkit-details-marker {
  display: none;
}

.page-products .pf-svc__num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--orange);
  letter-spacing: 0.08em;
}

.page-products .pf-svc__name {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(19px, 2.6vw, 24px);
  line-height: 1.2;
  color: var(--ink);
}

.page-products .pf-svc__for {
  grid-column: 2;
  font-family: var(--font-serif);
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .pf-svc__body {
  padding: 0 20px 22px;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

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

.page-products .pf-svc__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 7px;
}

.page-products .pf-svc__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.75;
}

.page-products .pf-svc__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
}

.page-products .pf-svc__go {
  display: inline-block;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
  padding-bottom: 2px;
}

.page-products .pf-svc__go:hover,
.page-products .pf-svc__go:focus-visible {
  color: var(--orange);
}

/* 目录导航 */
.page-products .pf-dir {
  display: grid;
  gap: clamp(22px, 3.4vw, 34px);
  grid-template-columns: 1fr;
}

.page-products .pf-dir__figure {
  margin: 0;
}

.page-products .pf-dir__figure img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  border-radius: var(--pf-radius);
  object-fit: cover;
}

.page-products .pf-dir__figure .media__caption {
  margin-top: 10px;
  font-family: var(--font-serif);
  font-size: 12px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .pf-steps {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-products .pf-steps__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding-top: 16px;
  border-top: var(--pf-edge);
}

.page-products .pf-steps__item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .pf-steps__num {
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.2;
  color: var(--orange);
}

.page-products .pf-steps__title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 18px;
  margin: 0 0 6px;
}

.page-products .pf-steps__item p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-products .pf-dir__text .note {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--map);
  color: var(--slate);
}

/* 设备区 */
.page-products .pf-devices {
  display: grid;
  gap: 8px;
  grid-template-columns: 1fr;
  margin-bottom: clamp(20px, 3vw, 28px);
}

.page-products .pf-device {
  border-bottom: var(--pf-edge);
  padding: 4px 0;
}

.page-products .pf-device[open] {
  background: var(--paper-warm);
  border-radius: 3px 16px 3px 16px;
  border-bottom-color: transparent;
  padding: 4px 16px 12px;
}

.page-products .pf-device__summary {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas: "icon name" "icon meta";
  gap: 0 14px;
  align-items: center;
  padding: 12px 0;
  cursor: pointer;
  list-style: none;
}

.page-products .pf-device__summary::-webkit-details-marker {
  display: none;
}

.page-products .pf-device__icon {
  grid-area: icon;
  width: 30px;
  height: 30px;
  color: var(--slate);
}

.page-products .pf-device[open] .pf-device__icon {
  color: var(--orange);
}

.page-products .pf-device__name {
  grid-area: name;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 17px;
  color: var(--ink);
}

.page-products .pf-device__meta {
  grid-area: meta;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-products .pf-device__body p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-products .pf-switch {
  background: var(--paper-warm);
  border-radius: 4px 24px 4px 24px;
  padding: clamp(20px, 3.4vw, 30px);
  border-left: 4px solid var(--orange);
}

.page-products .pf-switch__title {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(18px, 2.6vw, 22px);
  margin: 0 0 14px;
}

.page-products .pf-switch__list {
  list-style: none;
  counter-reset: sw;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .pf-switch__list li {
  position: relative;
  padding-left: 30px;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
  counter-increment: sw;
}

.page-products .pf-switch__list li::before {
  content: counter(sw, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--orange);
  padding-top: 4px;
}

.page-products .pf-switch__list strong {
  font-family: var(--font-sans);
  color: var(--ink);
}

/* 步骤轨道 */
.page-products .pf-track {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
  position: relative;
  margin-bottom: clamp(24px, 4vw, 38px);
}

.page-products .pf-track__step {
  position: relative;
  background: var(--paper-warm);
  border-radius: 3px 18px 3px 18px;
  padding: 0;
  border-top: 4px solid var(--orange);
}

.page-products .pf-track__step[open] {
  background: var(--orange-soft);
}

.page-products .pf-track__summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

.page-products .pf-track__summary::-webkit-details-marker {
  display: none;
}

.page-products .pf-track__num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--orange);
}

.page-products .pf-track__name {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 19px;
  color: var(--ink);
}

.page-products .pf-track__body {
  margin: 0;
  padding: 0 18px 18px;
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-products .pf-first {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
  grid-template-columns: 1fr;
  align-items: center;
}

.page-products .pf-first__figure {
  margin: 0;
}

.page-products .pf-first__figure img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--pf-radius);
  object-fit: cover;
}

.page-products .pf-first__figure .media__caption {
  margin-top: 10px;
  font-family: var(--font-serif);
  font-size: 12px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .pf-first__title {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(19px, 2.8vw, 24px);
  margin: 0 0 12px;
}

.page-products .pf-first__text p {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-products .pf-first__text .note {
  color: var(--slate);
}

/* 场景选择 */
.page-products .pf-scene {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

.page-products .pf-scene__card {
  padding: 22px;
  border-radius: 3px 20px 3px 20px;
  background: var(--paper-warm);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-products .pf-scene__card--lead {
  background: var(--ink);
  color: var(--paper);
}

.page-products .pf-scene__card--tail {
  background: var(--slate);
  color: var(--paper);
}

.page-products .pf-scene__who {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-products .pf-scene__card--lead .pf-scene__who,
.page-products .pf-scene__card--tail .pf-scene__who {
  color: var(--sign);
}

.page-products .pf-scene__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.35;
}

.page-products .pf-scene__desc {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.8;
  opacity: 0.88;
}

.page-products .pf-scene__link {
  margin-top: auto;
  padding-top: 8px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 14px;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
  align-self: flex-start;
}

.page-products .pf-scene__card--lead .pf-scene__link,
.page-products .pf-scene__card--tail .pf-scene__link {
  color: var(--sign);
  border-bottom-color: var(--sign);
}

.page-products .pf-scene__link:hover,
.page-products .pf-scene__link:focus-visible {
  color: var(--ink);
}

/* 能力与版本 */
.page-products .pf-cap {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(28px, 5vw, 52px);
  border-radius: 4px 30px 4px 30px;
  margin-top: clamp(28px, 4vw, 44px);
  border-top: 0;
}

.page-products .pf-cap .pf-section__title {
  color: var(--paper);
}

.page-products .pf-cap .pf-section__intro {
  color: rgba(247, 243, 234, 0.78);
}

.page-products .pf-cap__metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 12px;
  padding: 20px 0;
  border-top: 1px solid rgba(247, 243, 234, 0.18);
  border-bottom: 1px solid rgba(247, 243, 234, 0.18);
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-products .pf-cap__metric .metric__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(30px, 6vw, 46px);
  line-height: 1;
  color: var(--sign);
}

.page-products .pf-cap__metric .metric__label {
  display: block;
  margin-top: 6px;
  font-family: var(--font-serif);
  font-size: 13px;
  color: rgba(247, 243, 234, 0.72);
}

.page-products .pf-cap__cols {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

.page-products .pf-cap__title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 17px;
  margin: 0 0 8px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--orange);
  display: inline-block;
}

.page-products .pf-cap__col p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.9;
  color: rgba(247, 243, 234, 0.8);
}

.page-products .pf-cap__cta {
  margin-top: clamp(24px, 4vw, 36px);
  padding-top: 20px;
  border-top: 1px solid rgba(247, 243, 234, 0.18);
  display: grid;
  gap: 16px;
}

.page-products .pf-cap__cta p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247, 243, 234, 0.86);
}

.page-products .pf-cap__btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .pf-cap .btn--ghost {
  color: var(--paper);
  border-color: rgba(247, 243, 234, 0.5);
}

.page-products .pf-cap .btn--ghost:hover,
.page-products .pf-cap .btn--ghost:focus-visible {
  border-color: var(--sign);
  color: var(--sign);
}

@media (min-width: 640px) {
  .page-products .pf-matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pf-svc--wide {
    grid-column: span 2;
  }

  .page-products .pf-devices {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .pf-track::before {
    content: "";
    position: absolute;
    left: 6%;
    right: 6%;
    top: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--orange), var(--sign));
    opacity: 0.45;
    display: none;
  }

  .page-products .pf-track__step {
    border-top-width: 4px;
  }

  .page-products .pf-scene {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pf-cap__metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pf-cap__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pf-cap__cta {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-products .pf-intro__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.8fr);
    align-items: end;
  }

  .page-products .pf-layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
  }

  .page-products .pf-matrix {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-products .pf-svc {
    grid-column: span 3;
  }

  .page-products .pf-svc--wide {
    grid-column: span 4;
  }

  .page-products .pf-svc--tall {
    grid-column: span 2;
  }

  .page-products .pf-dir {
    grid-template-columns: minmax(0, 1.25fr) minmax(240px, 0.72fr);
    align-items: start;
  }

  .page-products .pf-dir__figure {
    position: sticky;
    top: 100px;
  }

  .page-products .pf-first {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr);
  }

  .page-products .pf-scene {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-products .pf-scene__card {
    grid-column: span 3;
  }

  .page-products .pf-scene__card--lead {
    grid-column: span 3;
  }

  .page-products .pf-scene__card--tail {
    grid-column: span 6;
  }
}

@media (min-width: 1180px) {
  .page-products .pf-cap__cols {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 899px) {
  .page-products .pf-toc {
    position: static;
    border-left: 0;
    padding-left: 0;
    border-top: var(--pf-edge);
    padding-top: 14px;
    margin-bottom: 6px;
  }

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

  .page-products .pf-toc .toc__link {
    white-space: nowrap;
    padding: 6px 12px;
    border: 1px solid var(--slate-soft);
    border-radius: 999px;
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pf-svc,
  .page-products .pf-device,
  .page-products .pf-track__step {
    transition: none;
  }
}
<<<END>>>