.page-products {
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-sans);
}

/* 面包屑 */
.page-products .fp-crumb {
  padding-top: 22px;
}

/* ================= 首屏 ================= */
.page-products .fp-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(95% 125% at 100% 0%, rgba(0, 229, 208, .15), transparent 62%),
    radial-gradient(70% 110% at 0% 110%, rgba(255, 122, 47, .08), transparent 60%),
    var(--ink);
}

.page-products .fp-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(36, 49, 70, .5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(36, 49, 70, .5) 1px, transparent 1px);
  background-size: 96px 96px;
  -webkit-mask-image: radial-gradient(120% 100% at 18% 0%, #000 18%, transparent 78%);
  mask-image: radial-gradient(120% 100% at 18% 0%, #000 18%, transparent 78%);
  pointer-events: none;
}

.page-products .fp-hero__inner {
  position: relative;
  display: grid;
  gap: 34px;
  padding-block: 40px 54px;
}

.page-products .fp-hero__title {
  margin: 14px 0 0;
  font-size: clamp(30px, 7vw, 44px);
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--text);
}

.page-products .fp-hero__lead {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .fp-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 28px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .fp-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background: var(--panel);
}

.page-products .fp-stat__num {
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1.2;
  color: var(--cyan);
}

.page-products .fp-stat__label {
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}

.page-products .fp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-products .fp-hero__media {
  position: relative;
}

.page-products .fp-hero__media::after {
  content: "";
  position: absolute;
  left: -10px;
  top: -10px;
  width: 74px;
  height: 74px;
  border-left: 2px solid var(--cyan);
  border-top: 2px solid var(--cyan);
  opacity: .7;
  pointer-events: none;
}

/* ================= 媒体框 ================= */
.page-products .media-frame {
  position: relative;
  overflow: hidden;
  background: var(--glass);
  border: 1px solid var(--line);
}

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

.page-products .media-frame__label {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 12px;
  background: rgba(5, 7, 12, .82);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan);
}

/* ================= 主体骨架 ================= */
.page-products .fp-shell {
  display: grid;
  gap: 26px;
  padding-block: 34px 84px;
}

.page-products .fp-body {
  min-width: 0;
}

.page-products .fp-block {
  scroll-margin-top: 96px;
  padding-top: 46px;
}

.page-products .fp-block:first-child {
  padding-top: 8px;
}

.page-products .fp-block__head {
  margin-bottom: 22px;
}

.page-products .fp-block__title {
  margin: 0;
  font-size: clamp(22px, 4.4vw, 30px);
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: .02em;
}

.page-products .fp-block__note {
  margin: 10px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ================= 左侧章节索引 ================= */
.page-products .fp-rail {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 16px;
}

.page-products .fp-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
  text-transform: uppercase;
}

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

.page-products .fp-rail__link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 11px;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--line);
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-products .fp-rail__link:hover,
.page-products .fp-rail__link:focus-visible {
  color: var(--text);
  border-color: var(--cyan);
}

.page-products .fp-rail__link.is-active {
  color: var(--cyan);
  border-color: var(--cyan);
  background: rgba(0, 229, 208, .07);
}

.page-products .fp-rail__num {
  font-size: 11px;
  color: var(--muted);
}

.page-products .fp-rail__link.is-active .fp-rail__num {
  color: var(--cyan);
}

/* ================= 能力卡片矩阵 ================= */
.page-products .cap-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}

.page-products .cap-card {
  grid-column: span 6;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}

.page-products .cap-card:hover {
  border-color: rgba(0, 229, 208, .55);
  transform: translateY(-2px);
}

.page-products .cap-card--lg {
  background:
    linear-gradient(135deg, rgba(0, 229, 208, .12), rgba(11, 18, 32, .95) 52%),
    var(--panel);
}

.page-products .cap-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-products .cap-card__no {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-products .cap-card__title {
  margin: 0;
  font-size: 17px;
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-products .cap-card--lg .cap-card__title {
  font-size: 21px;
}

.page-products .cap-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .cap-more {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}

.page-products .cap-more__summary {
  cursor: pointer;
  list-style: none;
  font-size: 13px;
  color: var(--cyan);
  outline-offset: 3px;
}

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

.page-products .cap-more__summary::before {
  content: "＋ ";
  font-family: var(--font-mono);
}

.page-products .cap-more[open] .cap-more__summary::before {
  content: "－ ";
}

.page-products .cap-more__body {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ================= 四步流程 ================= */
.page-products .fp-figure {
  margin: 0 0 22px;
}

.page-products .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  position: relative;
}

.page-products .flow__step {
  position: relative;
  z-index: 1;
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  transition: border-color .18s var(--ease), transform .18s var(--ease);
}

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

.page-products .flow__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: var(--glass);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cyan);
}

.page-products .flow__title {
  margin: 14px 0 0;
  font-size: 17px;
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-products .flow__text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .flow__flag {
  display: block;
  margin-top: 14px;
  padding-left: 10px;
  border-left: 2px solid var(--teal);
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
}

.page-products .flow__step:hover .flow__flag {
  border-left-color: var(--cyan);
  color: var(--text);
}

/* ================= 适配与迁移 ================= */
.page-products .fp-split {
  display: grid;
  gap: 16px;
}

.page-products .fp-panel {
  padding: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.page-products .fp-panel--accent {
  background:
    linear-gradient(180deg, rgba(14, 124, 116, .16), rgba(11, 18, 32, .96) 42%),
    var(--panel);
}

.page-products .fp-panel__title {
  margin: 0;
  font-size: 20px;
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-products .fp-panel__text {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .fp-panel__foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .fp-specs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 18px 0 20px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .fp-spec {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 13px 14px;
  background: var(--glass);
}

.page-products .fp-spec__value {
  font-size: 14px;
  color: var(--cyan);
}

.page-products .fp-spec__label {
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}

.page-products .fp-checklist {
  list-style: none;
  margin: 18px 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .fp-checklist li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

.page-products .fp-checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--cyan);
}

/* ================= 栏目主题簇 ================= */
.page-products .cluster-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .cluster {
  display: grid;
  gap: 8px;
  padding: 20px;
  background: var(--panel);
  transition: background-color .18s var(--ease);
}

.page-products .cluster:hover {
  background: var(--glass);
}

.page-products .cluster__no {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-products .cluster__title {
  margin: 0;
  font-size: 18px;
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-products .cluster__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .path-strip {
  margin-top: 18px;
  padding: 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
}

.page-products .path-strip__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-products .path-line {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--cyan);
}

.page-products .path-line__arrow {
  color: var(--muted);
  font-style: normal;
}

.page-products .path-strip__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ================= 导出格式切换 ================= */
.page-products .fp-split--export {
  align-items: start;
}

.page-products .fmt {
  display: block;
}

.page-products .fmt__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  margin: 0;
  pointer-events: none;
}

.page-products .fmt__tabs {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  background: var(--glass);
  border: 1px solid var(--line);
}

.page-products .fmt__tab {
  padding: 9px 18px;
  font-size: 14px;
  color: var(--muted);
  border: 1px solid transparent;
  cursor: pointer;
  transition: color .18s var(--ease), background-color .18s var(--ease);
}

.page-products .fmt__input:focus-visible ~ .fmt__tabs {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-products #fmt-csv:checked ~ .fmt__tabs .fmt__tab[for="fmt-csv"],
.page-products #fmt-json:checked ~ .fmt__tabs .fmt__tab[for="fmt-json"] {
  color: var(--ink);
  background: var(--cyan);
  font-weight: 700;
}

.page-products #fmt-csv:checked ~ .fmt__panel--json {
  display: none;
}

.page-products #fmt-json:checked ~ .fmt__panel--csv {
  display: none;
}

.page-products .fmt__panel {
  margin-top: 18px;
  padding-left: 12px;
  border-left: 2px solid var(--orange);
}

.page-products .fmt__hint {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

.page-products .fmt__fields {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .fmt__field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  background: var(--panel);
}

.page-products .fmt__key {
  font-size: 13px;
  color: var(--cyan);
}

.page-products .fmt__value {
  font-size: 13px;
  color: var(--muted);
}

.page-products .fp-figure--flush {
  margin: 0;
}

/* ================= 升级说明折叠 ================= */
.page-products .up-list {
  display: grid;
  gap: 10px;
}

.page-products .up-item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  transition: border-color .18s var(--ease);
}

.page-products .up-item[open] {
  border-left-color: var(--cyan);
}

.page-products .up-item:hover {
  border-color: rgba(0, 229, 208, .5);
}

.page-products .up-item__summary {
  cursor: pointer;
  list-style: none;
  padding: 16px 18px;
  font-size: 15px;
  line-height: 1.6;
  font-weight: 500;
  color: var(--text);
}

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

.page-products .up-item__summary::after {
  content: "▾";
  float: right;
  margin-left: 12px;
  color: var(--cyan);
  transition: transform .18s var(--ease);
}

.page-products .up-item[open] .up-item__summary::after {
  transform: rotate(180deg);
}

.page-products .up-item__body {
  padding: 0 18px 18px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-products .up-item__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ================= 页尾行动区 ================= */
.page-products .fp-cta {
  margin-top: 52px;
  padding: 28px 22px;
  background:
    linear-gradient(120deg, rgba(0, 229, 208, .12), rgba(255, 122, 47, .07) 68%, transparent),
    var(--panel);
  border: 1px solid var(--line);
}

.page-products .fp-cta__title {
  margin: 0;
  font-size: clamp(20px, 3.8vw, 26px);
  line-height: 1.35;
  font-weight: 800;
  letter-spacing: .02em;
}

.page-products .fp-cta__text {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .fp-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-products .fp-cta__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ================= 断点 ================= */
@media (min-width: 640px) {
  .page-products .fp-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

@media (min-width: 760px) {
  .page-products .cap-card--lg {
    grid-column: span 6;
  }

  .page-products .cap-card--md {
    grid-column: span 3;
  }

  .page-products .cap-card--sm {
    grid-column: span 3;
  }
}

@media (min-width: 900px) {
  .page-products .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .flow::after {
    content: "";
    position: absolute;
    left: 6%;
    right: 6%;
    top: 39px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--cyan) 18%, var(--cyan) 82%, transparent);
    opacity: .4;
    z-index: 0;
  }

  .page-products .fp-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 6fr);
    gap: 52px;
    align-items: center;
    padding-block: 72px 86px;
  }

  .page-products .fp-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-products .fp-split--export {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

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

  .page-products .fp-cta {
    padding: 36px 32px;
  }
}

@media (min-width: 1024px) {
  .page-products .fp-shell {
    grid-template-columns: var(--rail) minmax(0, 1fr);
    gap: 46px;
    padding-block: 44px 96px;
  }

  .page-products .fp-rail {
    position: sticky;
    top: 18px;
    padding: 20px 16px;
  }

  .page-products .fp-rail__list {
    display: block;
  }

  .page-products .fp-rail__link {
    border: 1px solid transparent;
    border-left: 2px solid transparent;
    padding: 9px 10px;
  }

  .page-products .fp-rail__link:hover,
  .page-products .fp-rail__link:focus-visible {
    background: var(--glass);
  }

  .page-products .fp-rail__link.is-active {
    border-color: transparent;
    border-left-color: var(--cyan);
    background: rgba(0, 229, 208, .07);
  }

  .page-products .fp-block {
    padding-top: 60px;
  }

  .page-products .fp-block:first-child {
    padding-top: 6px;
  }

  .page-products .cap-card--sm {
    grid-column: span 2;
  }

  .page-products .cap-card--lg {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: flex-start;
    column-gap: 32px;
    row-gap: 10px;
  }

  .page-products .cap-card--lg .cap-card__top {
    width: 100%;
  }

  .page-products .cap-card--lg .cap-card__title {
    flex: 0 0 auto;
    min-width: 220px;
  }

  .page-products .cap-card--lg .cap-card__text {
    flex: 1 1 320px;
    min-width: 0;
  }

  .page-products .cap-card--lg .cap-more {
    flex: 1 1 100%;
  }

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

@media (min-width: 1240px) {
  .page-products .fp-hero__title {
    font-size: 44px;
  }
}
<<<END>>>