.page-products {
  --pp-rail: 176px;
  --pp-gap: clamp(20px, 4vw, 48px);
  --pp-hair: rgba(18, 41, 90, 0.85);
  --pp-inner: clamp(22px, 4vw, 44px);
  background: var(--abyss);
  color: var(--paper);
  overflow-x: hidden;
}

.page-products a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 243, 208, 0.4);
}

.page-products a:hover,
.page-products a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 面包屑与页头 ---------- */

.page-products .breadcrumbs {
  padding-top: clamp(18px, 3vw, 32px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-products .breadcrumbs a {
  color: var(--mist);
  border-bottom-color: transparent;
}

.page-products .breadcrumbs a:hover,
.page-products .breadcrumbs a:focus-visible {
  color: var(--cyan);
}

.page-products .page-head {
  position: relative;
  isolation: isolate;
  padding: clamp(24px, 4vw, 44px) 0 clamp(40px, 8vw, 88px);
}

.page-products .page-head::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -200px;
  right: -140px;
  width: min(720px, 95vw);
  height: 460px;
  background: radial-gradient(circle at 62% 42%, rgba(43, 28, 99, 0.95), rgba(43, 28, 99, 0) 68%);
  pointer-events: none;
}

.page-products .page-head::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: 0;
  bottom: 0;
  width: 44%;
  height: 5px;
  background: linear-gradient(90deg, var(--cyan), rgba(47, 243, 208, 0));
}

.page-products .page-head .eyebrow {
  display: block;
  font-size: 12px;
  letter-spacing: 0.26em;
  color: var(--lava);
  margin: 0 0 clamp(14px, 2.4vw, 22px);
}

.page-products .page-head h1 {
  font-family: var(--font-display);
  font-size: clamp(1.95rem, 6.2vw, 4.1rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 clamp(16px, 2.6vw, 26px);
  max-width: 15em;
  color: var(--paper);
}

.page-products .page-head .lead {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-products .quick-facts {
  list-style: none;
  margin: clamp(28px, 5vw, 46px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  background: var(--steel);
  border-top: 3px solid var(--steel);
  border-bottom: 3px solid var(--steel);
}

.page-products .quick-facts li {
  background: var(--abyss);
  padding: clamp(14px, 2.2vw, 22px) clamp(12px, 2vw, 20px);
}

.page-products .quick-facts b {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(19px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-products .qf-unit {
  font-size: 0.7em;
  color: var(--mist);
}

.page-products .quick-facts span {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* ---------- 画布与索引列 ---------- */

.page-products .canvas {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
  padding-bottom: clamp(48px, 9vw, 112px);
}

.page-products .canvas__rail {
  min-width: 0;
}

.page-products .canvas__rail-label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--steel);
}

.page-products .canvas__rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-products .canvas__rail-list::-webkit-scrollbar {
  display: none;
}

.page-products .canvas__rail-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  white-space: nowrap;
  padding: 9px 12px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--mist);
  border-bottom: 2px solid transparent;
}

.page-products .canvas__rail-list a:hover,
.page-products .canvas__rail-list a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-products .canvas__rail-list .mono {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--steel);
}

.page-products .canvas__rail-list a:hover .mono {
  color: var(--cyan);
}

.page-products .canvas__stream {
  min-width: 0;
  display: grid;
  gap: clamp(56px, 9vw, 128px);
}

/* ---------- 通用区块 ---------- */

.page-products .block {
  scroll-margin-top: 96px;
  min-width: 0;
}

.page-products .block__head {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(22px, 3.6vw, 38px);
}

.page-products .block__index {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--lava);
}

.page-products .block__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.6vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--paper);
}

.page-products .block__lead {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.5vw, 16.5px);
  line-height: 1.85;
  color: var(--mist);
}

.page-products .img-frame {
  margin: 0;
  min-width: 0;
}

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

.page-products .img-frame figcaption {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 01 版式与设备 ---------- */

.page-products .layout-grid {
  display: grid;
  gap: clamp(18px, 2.8vw, 28px);
}

.page-products .device-demo {
  position: relative;
  margin-top: clamp(26px, 4.4vw, 46px);
  background: var(--indigo);
  padding: var(--pp-inner);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
}

.page-products .device-demo__tag {
  margin: 0 0 clamp(14px, 2.4vw, 22px);
  font-size: 11px;
  letter-spacing: 0.28em;
  color: var(--mint);
}

.page-products .device-switch {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px;
  background: var(--abyss);
  border: 3px solid var(--steel);
}

.page-products .device-switch__btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.06em;
  padding: 10px 18px;
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease;
}

.page-products .device-switch__btn:hover {
  color: var(--paper);
}

.page-products .device-switch__btn.is-active {
  background: var(--cyan);
  color: var(--abyss);
  font-weight: 700;
}

.page-products .device-note {
  margin-top: clamp(18px, 3vw, 28px);
}

.page-products .device-note__title {
  margin: 0 0 14px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--mint);
}

.page-products .device-note__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .device-note__list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
}

.page-products .device-note__list li::before {
  content: attr(data-k);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  padding-top: 6px;
}

.page-products .device-demo:has(.device-switch__btn[data-device="desktop"].is-active) .device-note--mobile {
  display: none;
}

.page-products .device-demo:has(.device-switch__btn[data-device="mobile"].is-active) .device-note--desktop {
  display: none;
}

/* ---------- 02 清单检索 ---------- */

.page-products .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(20px, 3vw, 30px);
}

.page-products .step-list__item {
  display: grid;
  gap: 8px;
  padding-left: 0;
  border-top: 2px solid var(--steel);
  padding-top: 18px;
}

.page-products .step-list__no {
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--lava);
}

.page-products .step-list__title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .step-list__item p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .checklist__figure {
  margin-top: clamp(26px, 4.4vw, 44px);
}

.page-products .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: clamp(28px, 4.6vw, 46px);
}

.page-products .filter-btn {
  appearance: none;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  background: transparent;
  border: 2px solid var(--steel);
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: 0.04em;
  padding: 9px 15px;
  cursor: pointer;
  transition: border-color 0.18s ease, color 0.18s ease, background-color 0.18s ease;
}

.page-products .filter-btn:hover {
  color: var(--paper);
  border-color: var(--violet);
}

.page-products .filter-btn.is-active {
  border-color: var(--violet);
  color: var(--paper);
  background: rgba(154, 107, 255, 0.14);
}

.page-products .filter-count {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-products .clist {
  list-style: none;
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 0;
  border-top: 2px solid var(--steel);
}

.page-products .clist__row {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 6px 14px;
  padding-block: 15px;
  border-bottom: 1px solid var(--pp-hair);
}

.page-products .clist__sport {
  grid-area: 1 / 1 / 3 / 2;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--violet);
}

.page-products .clist__name {
  grid-area: 1 / 2 / 2 / 3;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--paper);
  line-height: 1.6;
}

.page-products .clist__state {
  grid-area: 1 / 3 / 2 / 4;
  justify-self: end;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  white-space: nowrap;
}

.page-products .clist__meta {
  grid-area: 2 / 2 / 3 / 4;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 03 数据面板 ---------- */

.page-products .block--panel {
  background: var(--deep);
  padding: var(--pp-inner);
  margin-inline: calc(-1 * clamp(0px, 2vw, 20px));
}

.page-products .panel__figure {
  margin-bottom: clamp(26px, 4.2vw, 42px);
}

.page-products .field-stack {
  display: grid;
  gap: 0;
}

.page-products .field {
  border-top: 2px solid var(--steel);
}

.page-products .field:last-child {
  border-bottom: 2px solid var(--steel);
}

.page-products .field__summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-products .field__code {
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--steel);
  min-width: 88px;
}

.page-products .field__name {
  flex: 1 1 auto;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .field__mark {
  position: relative;
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
}

.page-products .field__mark::before,
.page-products .field__mark::after {
  content: "";
  position: absolute;
  background: var(--cyan);
}

.page-products .field__mark::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-products .field__mark::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
  transition: transform 0.2s ease;
}

.page-products .field[open] .field__mark::after {
  transform: scaleY(0);
}

.page-products .field__body {
  padding: 0 0 22px;
}

.page-products .field__body > p {
  margin: 0 0 14px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .field__keys {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .field__keys li {
  display: grid;
  grid-template-columns: minmax(72px, auto) minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper);
}

.page-products .field__keys .mono {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mint);
}

/* ---------- 04 跨设备同步 ---------- */

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

.page-products .sync-steps__item {
  display: grid;
  grid-template-columns: minmax(64px, auto) minmax(0, 1fr);
  gap: 16px;
  align-items: baseline;
  border-left: 2px solid var(--cyan);
  padding-left: 16px;
}

.page-products .sync-steps__no {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-products .sync-steps__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper);
}

.page-products .sync__figure {
  margin-top: clamp(26px, 4.4vw, 44px);
}

.page-products .sync-note {
  margin: clamp(22px, 3.6vw, 34px) 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 05 分类浏览 ---------- */

.page-products .cat-cloud {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border-top: 2px solid var(--steel);
}

.page-products .cat-cloud li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 13px 12px 13px 0;
  font-size: 15px;
  color: var(--paper);
  border-bottom: 1px solid var(--pp-hair);
}

.page-products .cat-cloud li:nth-child(odd) {
  border-right: 1px solid var(--pp-hair);
  padding-right: 14px;
}

.page-products .cat-cloud li:nth-child(even) {
  padding-left: 14px;
}

.page-products .cat-cloud .mono {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--steel);
}

.page-products .cat-cloud__flag {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--abyss);
  background: var(--lava);
  padding: 2px 6px;
  margin-left: auto;
}

.page-products .cat-notes {
  margin-top: clamp(26px, 4.4vw, 44px);
  display: grid;
  gap: clamp(20px, 3.2vw, 32px);
}

.page-products .cat-notes__item h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--mint);
}

.page-products .cat-notes__item p {
  margin: 0;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 06 典型路径 ---------- */

.page-products .paths {
  display: grid;
  gap: clamp(22px, 3.4vw, 34px);
}

.page-products .path {
  border-top: 3px solid var(--steel);
  padding-top: 20px;
}

.page-products .path__no {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--lava);
}

.page-products .path__title {
  margin: 0 0 10px;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--paper);
}

.page-products .path__lead {
  margin: 0 0 14px;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .path__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-products .path__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--paper);
}

.page-products .path__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 9px;
  height: 2px;
  background: var(--cyan);
}

.page-products .closing {
  margin-top: clamp(30px, 5vw, 52px);
  padding: clamp(20px, 3.4vw, 32px);
  background: var(--jade);
}

.page-products .closing__text {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper);
}

.page-products .closing__text a {
  color: var(--mint);
  border-bottom-color: rgba(169, 255, 238, 0.5);
}

/* ---------- 断点 ---------- */

@media (min-width: 620px) {
  .page-products .quick-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .step-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(18px, 2.4vw, 28px);
  }

  .page-products .sync-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(18px, 2.6vw, 30px);
  }

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

  .page-products .cat-cloud li:nth-child(odd) {
    border-right: 0;
    padding-left: 0;
    padding-right: 12px;
  }

  .page-products .cat-cloud li:nth-child(even) {
    padding-left: 0;
  }

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

@media (min-width: 780px) {
  .page-products .layout-grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: clamp(14px, 2vw, 24px);
    align-items: start;
  }

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

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

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

@media (min-width: 960px) {
  .page-products .canvas {
    grid-template-columns: var(--pp-rail) minmax(0, 1fr);
    gap: clamp(28px, 3.4vw, 56px);
  }

  .page-products .canvas__rail {
    position: sticky;
    top: 108px;
    align-self: start;
  }

  .page-products .canvas__rail-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
  }

  .page-products .canvas__rail-list a {
    width: 100%;
    padding: 11px 0;
    border-bottom: 1px solid var(--pp-hair);
  }

  .page-products .canvas__rail-list a:hover,
  .page-products .canvas__rail-list a:focus-visible {
    border-bottom-color: var(--cyan);
  }

  .page-products .block--panel {
    margin-inline: calc(-1 * clamp(20px, 3vw, 44px));
    padding-inline: clamp(20px, 3vw, 44px);
  }

  .page-products .field__body {
    padding-left: 102px;
  }
}

@media (min-width: 1120px) {
  .page-products .cat-cloud {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-products .step-list__item {
    padding-top: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .device-switch__btn,
  .page-products .filter-btn,
  .page-products .field__mark::after {
    transition: none;
  }
}