.page-products {
  --tree-w: 296px;
  --line: rgba(92, 111, 134, 0.38);
  --line-soft: rgba(92, 111, 134, 0.22);
  padding-bottom: 72px;
}

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

/* ---------- 工作台 ---------- */
.page-products .workbench {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
}

.page-products .tree {
  background: linear-gradient(180deg, rgba(11, 23, 38, 0.96), rgba(5, 11, 20, 0.9));
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 18px 14px 20px;
}

.page-products .tree__title {
  margin: 0 0 12px;
  padding: 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-products .tree__list,
.page-products .tree__children {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .tree__list {
  display: grid;
  gap: 4px;
}

.page-products .tree__node {
  border-radius: var(--r-sm);
}

.page-products .tree__summary {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 12px;
  border-radius: var(--r-sm);
  cursor: pointer;
  list-style: none;
  color: var(--mist);
  font-weight: 700;
  font-size: 15px;
  transition: background 200ms var(--ease), color 200ms var(--ease);
}

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

.page-products .tree__summary:hover {
  background: rgba(28, 105, 212, 0.2);
}

.page-products .tree__node[open] > .tree__summary {
  background: var(--navy);
  color: var(--mist);
}

.page-products .tree__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--steel);
  flex: 0 0 auto;
  transition: background 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-products .tree__node[open] > .tree__summary .tree__dot {
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(58, 242, 255, 0.18);
}

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

.page-products .tree__count {
  font-size: 12px;
  color: var(--cool);
}

.page-products .tree__node[open] > .tree__summary .tree__count {
  color: var(--cyan);
}

.page-products .tree__children {
  margin: 4px 0 8px 22px;
  padding-left: 12px;
  border-left: 1px solid var(--line);
  display: grid;
  gap: 2px;
}

.page-products .tree__children li {
  padding: 6px 8px;
  font-size: 14px;
  color: var(--cool);
  border-radius: 8px;
}

.page-products .tree__children li:hover {
  background: rgba(58, 242, 255, 0.07);
  color: var(--mist);
}

/* ---------- 标签页 ---------- */
.page-products .tablist {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 2px 2px 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--steel) transparent;
}

.page-products .tablist::-webkit-scrollbar {
  height: 4px;
}

.page-products .tablist::-webkit-scrollbar-thumb {
  background: var(--steel);
  border-radius: 999px;
}

.page-products .tab {
  flex: 0 0 auto;
  appearance: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(11, 23, 38, 0.85);
  color: var(--cool);
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 10px 18px;
  cursor: pointer;
  transition: background 200ms var(--ease), color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-products .tab:hover {
  color: var(--mist);
  border-color: var(--bmw);
}

.page-products .tab[aria-selected="true"] {
  background: var(--bmw);
  border-color: var(--cyan);
  color: var(--mist);
  box-shadow: inset 0 0 0 1px rgba(58, 242, 255, 0.55), 0 10px 26px rgba(28, 105, 212, 0.32);
}

.page-products .tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-products .tabpanel {
  margin-top: 12px;
  padding: 22px 20px 24px;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
}

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

.page-products .panel-title {
  margin: 0 0 8px;
  font-size: clamp(20px, 3.4vw, 26px);
  line-height: 1.35;
  color: var(--mist);
  letter-spacing: -0.01em;
}

.page-products .panel-lede {
  margin: 0 0 16px;
  color: var(--cool);
  font-size: 15px;
  line-height: 1.75;
}

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

.page-products .domain-list li {
  position: relative;
  padding-left: 24px;
  color: var(--cool);
  font-size: 15px;
  line-height: 1.75;
}

.page-products .domain-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.66em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(58, 242, 255, 0.45);
}

.page-products .domain-list strong {
  color: var(--mist);
  font-weight: 700;
}

.page-products .panel-link {
  margin: 18px 0 0;
}

.page-products .workbench__media {
  margin: 24px 0 0;
}

/* ---------- 两级归位 ---------- */
.page-products .filing {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-products .filing__steps {
  display: grid;
  gap: 16px;
}

.page-products .filing__step {
  position: relative;
  padding: 22px 20px;
  background: linear-gradient(145deg, rgba(14, 59, 122, 0.42), rgba(11, 23, 38, 0.94));
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
}

.page-products .filing__step::after {
  content: "";
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--bmw), var(--cyan), transparent);
}

.page-products .filing__num {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-products .filing__title {
  margin: 0 0 10px;
  font-size: 20px;
  color: var(--mist);
  letter-spacing: -0.01em;
}

.page-products .filing__step p {
  margin: 0;
  color: var(--cool);
  font-size: 15px;
  line-height: 1.75;
}

.page-products .filing__tag {
  display: inline-block;
  margin-top: 14px;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--mist);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-products .filing__media {
  margin: 0;
}

/* ---------- 导出 ---------- */
.page-products .export-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .export-step {
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  transition: border-color 200ms var(--ease);
}

.page-products .export-step[open] {
  border-color: var(--cyan);
}

.page-products .export-step__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  color: var(--mist);
  font-weight: 700;
  font-size: 16px;
}

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

.page-products .export-step__summary:hover {
  color: var(--cyan);
}

.page-products .export-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(28, 105, 212, 0.26);
  border: 1px solid var(--bmw);
  color: var(--mist);
  font-size: 12px;
}

.page-products .export-step[open] .export-step__num {
  background: var(--bmw);
  border-color: var(--cyan);
  color: var(--mist);
}

.page-products .export-step__body {
  padding: 0 18px 18px 64px;
}

.page-products .export-step__body p {
  margin: 0;
  color: var(--cool);
  font-size: 15px;
  line-height: 1.75;
}

.page-products .export__media {
  margin: 24px 0 0;
}

/* ---------- 旧版查找 ---------- */
.page-products .legacy {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: start;
}

.page-products .legacy__media {
  margin: 0;
}

.page-products .legacy__title {
  margin: 0 0 16px;
  font-size: clamp(20px, 3.6vw, 26px);
  color: var(--mist);
  letter-spacing: -0.01em;
}

.page-products .legacy__tip {
  margin: 18px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--orange);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: rgba(11, 23, 38, 0.9);
  color: var(--cool);
  font-size: 15px;
  line-height: 1.75;
}

.page-products .legacy__actions {
  margin: 20px 0 0;
}

/* ---------- 场景 ---------- */
.page-products .scenario-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .scenario {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: border-color 200ms var(--ease), transform 200ms var(--ease);
}

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

.page-products .scenario__num {
  margin: 0 0 12px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-products .scenario__title {
  margin: 0 0 10px;
  font-size: 18px;
  line-height: 1.4;
  color: var(--mist);
}

.page-products .scenario__path {
  margin: 0 0 12px;
  padding: 8px 12px;
  border-radius: var(--r-sm);
  background: rgba(28, 105, 212, 0.18);
  color: var(--mist);
  font-size: 13px;
  line-height: 1.6;
}

.page-products .scenario__text {
  margin: 0;
  color: var(--cool);
  font-size: 15px;
  line-height: 1.75;
}

.page-products .scenarios__media {
  margin: 24px 0 0;
}

/* ---------- 支持 ---------- */
.page-products .support {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: start;
}

.page-products .support__title {
  margin: 0 0 10px;
  font-size: 19px;
  color: var(--mist);
}

.page-products .callout p {
  margin: 0 0 10px;
  color: var(--cool);
  font-size: 15px;
  line-height: 1.75;
}

.page-products .support__contact {
  margin: 0;
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 0.04em;
  word-break: break-word;
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .page-head .page-title {
    letter-spacing: -0.02em;
  }

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

@media (min-width: 860px) {
  .page-products {
    padding-bottom: 96px;
  }

  .page-products .workbench {
    grid-template-columns: var(--tree-w) minmax(0, 1fr);
    gap: 24px;
  }

  .page-products .tabpanel {
    padding: 28px 26px 30px;
  }

  .page-products .filing {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }

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

  .page-products .export-step__summary {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    min-height: 148px;
  }

  .page-products .export-step__body {
    padding: 0 18px 18px;
  }

  .page-products .legacy {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 30px;
  }

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

  .page-products .support {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 24px;
    align-items: center;
  }
}

@media (min-width: 1200px) {
  .page-products .tree {
    padding: 22px 18px 24px;
  }

  .page-products .tabpanel {
    padding: 32px 32px 34px;
  }

  .page-products .domain-list li {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .scenario,
  .page-products .tab,
  .page-products .tree__summary,
  .page-products .tree__dot,
  .page-products .export-step {
    transition: none;
  }

  .page-products .scenario:hover {
    transform: none;
  }
}
<<<END>>>