.page-products {
  --pf-band: var(--paper-2);
  --pf-rule: rgba(27, 26, 23, 0.18);
  background: var(--paper);
  color: var(--ink);
}

.page-products .section {
  padding: 2.75rem 0;
  border-top: 1px solid var(--pf-rule);
}

.page-products .pf-scale {
  height: 9px;
  border-bottom: 1px solid var(--pf-rule);
  background-image: repeating-linear-gradient(90deg, var(--gold-line) 0 1px, transparent 1px 14px);
  margin-bottom: 1.75rem;
}

/* ---------- 首屏 ---------- */
.page-products .pf-hero {
  padding: 1.25rem 0 2.75rem;
}

.page-products .breadcrumbs {
  margin-bottom: 1.5rem;
}

.page-products .pf-hero__grid {
  display: grid;
  gap: 2rem;
  border-top: 1px solid var(--line-strong);
  padding-top: 1.75rem;
}

.page-products .pf-hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 6.4vw, 3.25rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--green);
  margin: 0.6rem 0 1rem;
}

.page-products .pf-hero__facts {
  list-style: none;
  margin: 1.5rem 0;
  padding: 0.8rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.6rem;
  border-top: 1px solid var(--pf-rule);
  border-bottom: 1px solid var(--pf-rule);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--copper);
}

.page-products .pf-hero__actions,
.page-products .pf-cases__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

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

.page-products .media-frame {
  position: relative;
  border: 1px solid var(--line-strong);
  background: var(--paper-2);
  overflow: hidden;
}

.page-products .media-frame__img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-products .media-frame__caption {
  margin-top: 0.7rem;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--gray);
  border-left: 2px solid var(--gold);
  padding-left: 0.7rem;
}

.page-products .pf-hero__frame {
  aspect-ratio: 16 / 10;
}

/* ---------- 章节头 ---------- */
.page-products .pf-section-head {
  max-width: 60ch;
  margin-bottom: 1.75rem;
}

.page-products .section__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.4vw, 2.25rem);
  line-height: 1.32;
  color: var(--green);
  margin: 0.4rem 0 0.9rem;
}

.page-products .pf-section-head .lede {
  margin: 0;
  color: var(--ink);
}

/* ---------- 筛选 ---------- */
.page-products .pf-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.6rem;
  padding: 0.9rem 0;
  border-top: 1px solid var(--pf-rule);
  border-bottom: 1px solid var(--pf-rule);
}

.page-products .tag-filter__label {
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--copper);
  margin-right: 0.4rem;
}

.page-products .tag-filter__btn {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  line-height: 1;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--green);
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.page-products .tag-filter__btn:hover {
  border-color: var(--copper);
  color: var(--dark-red);
}

.page-products .tag-filter__btn[aria-pressed="true"] {
  background: var(--red);
  border-color: var(--red);
  color: var(--cream);
}

.page-products .filter-status {
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--gray);
  margin-left: auto;
}

/* ---------- 六个功能区 ---------- */
.page-products .pf-boards {
  display: grid;
  gap: 1.15rem;
  margin-top: 2rem;
}

.page-products .pf-board[hidden] {
  display: none;
}

.page-products .pf-board {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line-strong);
  background: var(--cream);
  transition: opacity 160ms ease;
}

.page-products .pf-board .board__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.8rem 1rem;
  background: var(--green);
  color: var(--cream);
}

.page-products .pf-board__title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  margin: 0;
}

.page-products .pf-board .board__meta {
  margin: 0;
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  color: var(--gold);
  white-space: nowrap;
}

.page-products .pf-board .board__body {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  flex: 1;
  padding: 1.05rem 1rem 1.15rem;
}

.page-products .pf-board__summary {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.78;
}

.page-products .pf-board__scene {
  margin: 0;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--gray);
  border-left: 2px solid var(--gold);
  padding-left: 0.7rem;
}

.page-products .pf-board__more {
  margin-top: auto;
  align-self: flex-start;
  font-size: 0.8125rem;
  color: var(--red);
  text-decoration: none;
  border-bottom: 1px solid rgba(164, 74, 50, 0.35);
  padding-bottom: 0.15rem;
}

.page-products .pf-board__more:hover {
  color: var(--dark-red);
  border-bottom-color: var(--dark-red);
}

/* ---------- 权益中心 ---------- */
.page-products .pf-benefits {
  background: var(--pf-band);
}

.page-products .pf-benefits__grid {
  display: grid;
  gap: 1.75rem;
  align-items: start;
}

.page-products .pf-benefits__grid > * {
  min-width: 0;
}

.page-products .pf-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-strong);
  background: var(--cream);
}

.page-products .pf-table {
  width: 100%;
  min-width: 600px;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.page-products .pf-table th,
.page-products .pf-table td {
  text-align: left;
  vertical-align: top;
  padding: 0.8rem 0.85rem;
  border-bottom: 1px solid var(--pf-rule);
  line-height: 1.65;
}

.page-products .pf-table thead th {
  background: var(--green);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.page-products .pf-table tbody th {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--green);
  white-space: nowrap;
}

.page-products .pf-table tbody tr:last-child th,
.page-products .pf-table tbody tr:last-child td {
  border-bottom: 0;
}

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

.page-products .pf-benefits__frame {
  aspect-ratio: 4 / 3;
}

.page-products .pf-notify {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.page-products .pf-notify__item {
  border-top: 2px solid var(--gold);
  background: var(--cream);
  padding: 1rem 1rem 1.1rem;
}

.page-products .pf-notify__num {
  margin: 0 0 0.45rem;
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--copper);
}

.page-products .pf-notify__item h3 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--green);
  margin: 0 0 0.5rem;
}

.page-products .pf-notify__item p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--ink);
}

.page-products .pf-upgrade {
  margin: 1.75rem 0 0;
  padding: 1rem 0 0;
  border-top: 1px solid var(--line-strong);
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--copper);
  max-width: 68ch;
}

/* ---------- 账户设置 ---------- */
.page-products .pf-flow {
  list-style: none;
  margin: 0 0 1.75rem;
  padding: 0;
  display: grid;
  gap: 0.6rem;
  counter-reset: none;
}

.page-products .pf-flow__item {
  border: 1px solid var(--line-strong);
  border-top: 2px solid var(--gold);
  background: var(--cream);
  padding: 0.75rem 0.9rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.page-products .pf-flow__num {
  font-size: 1.375rem;
  font-weight: 800;
  line-height: 1;
  color: var(--gold);
}

.page-products .pf-flow__label {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  color: var(--green);
  letter-spacing: 0.04em;
}

.page-products .pf-account__grid {
  display: grid;
  gap: 1.75rem;
}

.page-products .pf-account__grid > * {
  min-width: 0;
}

.page-products .pf-steps {
  display: grid;
  gap: 0.6rem;
  align-content: start;
}

.page-products .pf-step {
  border: 1px solid var(--line-strong);
  background: var(--cream);
}

.page-products .pf-step summary {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  cursor: pointer;
  list-style: none;
}

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

.page-products .pf-step summary::marker {
  content: "";
}

.page-products .pf-step[open] summary {
  background: var(--paper-2);
  border-bottom: 1px solid var(--pf-rule);
}

.page-products .pf-step__num {
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--red);
  white-space: nowrap;
}

.page-products .pf-step__title {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--green);
}

.page-products .pf-step__sign {
  margin-left: auto;
  color: var(--copper);
  font-size: 0.9375rem;
  line-height: 1;
  transition: transform 160ms ease;
}

.page-products .pf-step[open] .pf-step__sign {
  transform: rotate(45deg);
}

.page-products .pf-step__body {
  padding: 0.85rem 1rem 1.05rem;
  font-size: 0.90625rem;
  line-height: 1.8;
}

.page-products .pf-step__body p {
  margin: 0 0 0.6rem;
}

.page-products .pf-step__body p:last-child {
  margin-bottom: 0;
  color: var(--gray);
}

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

.page-products .pf-account__frame {
  aspect-ratio: 12 / 7;
}

/* ---------- 换机重登 ---------- */
.page-products .pf-relogin {
  background: var(--green);
  color: var(--footer-text);
  border-top: 1px solid var(--green);
}

.page-products .pf-relogin__inner {
  display: grid;
  gap: 2rem;
  align-items: start;
}

.page-products .pf-relogin .eyebrow {
  color: var(--gold);
}

.page-products .pf-relogin h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.4vw, 2.25rem);
  line-height: 1.32;
  color: var(--cream);
  margin: 0.5rem 0 1rem;
}

.page-products .pf-relogin__lead {
  margin: 0 0 1.25rem;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(237, 228, 210, 0.9);
  max-width: 46ch;
}

.page-products .pf-relogin__list {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  border-top: 1px solid rgba(237, 228, 210, 0.22);
}

.page-products .pf-relogin__list li {
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(237, 228, 210, 0.22);
  font-size: 0.875rem;
  line-height: 1.75;
  color: rgba(237, 228, 210, 0.88);
}

.page-products .pf-relogin__list .mono {
  display: inline-block;
  min-width: 3.2em;
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-products .pf-relogin__stat {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  margin: 0 0 1.5rem;
  font-size: 0.8125rem;
  color: rgba(237, 228, 210, 0.85);
}

.page-products .pf-relogin__stat .mono {
  font-size: 2rem;
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
}

.page-products .pf-relogin .btn--ghost {
  border: 1px solid var(--gold);
  color: var(--cream);
  background: transparent;
}

.page-products .pf-relogin .btn--ghost:hover {
  background: rgba(200, 162, 90, 0.16);
  color: var(--cream);
}

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

.page-products .pf-relogin__frame {
  aspect-ratio: 4 / 5;
  border-color: rgba(200, 162, 90, 0.55);
}

.page-products .pf-relogin .media-frame__caption {
  color: rgba(237, 228, 210, 0.72);
  border-left-color: var(--gold);
}

/* ---------- 案例与资料 ---------- */
.page-products .pf-cases__grid {
  display: grid;
  gap: 1.75rem;
}

.page-products .pf-cases__grid > * {
  min-width: 0;
}

.page-products .pf-stats {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.page-products .pf-stat {
  border-top: 2px solid var(--gold);
  padding-top: 0.6rem;
}

.page-products .pf-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--green);
}

.page-products .pf-stat__label {
  display: block;
  margin-top: 0.3rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--gray);
}

.page-products .pf-cases__notes {
  border-top: 1px solid var(--pf-rule);
  padding-top: 1rem;
  margin-bottom: 1.5rem;
}

.page-products .pf-cases__notes p {
  margin: 0 0 0.9rem;
  font-size: 0.90625rem;
  line-height: 1.8;
}

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

.page-products .pf-cases__notes .mono {
  display: inline-block;
  min-width: 4em;
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  color: var(--copper);
}

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

.page-products .pf-cases__frame {
  aspect-ratio: 5 / 4;
}

/* ---------- 版本 ---------- */
.page-products .pf-version__grid {
  display: grid;
  gap: 1.15rem;
}

.page-products .pf-version__col {
  border: 1px solid var(--line-strong);
  background: var(--cream);
}

.page-products .pf-version__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.8rem 1rem;
  background: var(--green);
  color: var(--cream);
}

.page-products .pf-version__head h3 {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  margin: 0;
}

.page-products .pf-version__head .mono {
  font-size: 0.625rem;
  letter-spacing: 0.14em;
  color: var(--gold);
  white-space: nowrap;
}

.page-products .pf-version__col--old .pf-version__head {
  background: var(--paper-2);
  color: var(--green);
  border-bottom: 1px solid var(--line-strong);
}

.page-products .pf-version__col--old .pf-version__head .mono {
  color: var(--copper);
}

.page-products .pf-version__list {
  list-style: none;
  margin: 0;
  padding: 0.85rem 1rem 1rem;
  font-size: 0.9rem;
  line-height: 1.75;
}

.page-products .pf-version__list li {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--pf-rule);
}

.page-products .pf-version__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .pf-version__note {
  margin: 1.75rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line-strong);
  font-size: 0.875rem;
  line-height: 1.85;
  color: var(--copper);
  max-width: 70ch;
}

/* ---------- 开始使用 ---------- */
.page-products .pf-next__grid {
  display: grid;
  gap: 1.25rem;
}

.page-products .pf-next__item {
  border-top: 1px solid var(--line-strong);
  padding-top: 0.9rem;
}

.page-products .pf-next__num {
  margin: 0 0 0.5rem;
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-products .pf-next__item h3 {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--green);
  margin: 0 0 0.5rem;
}

.page-products .pf-next__item p {
  margin: 0 0 0.75rem;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--ink);
}

.page-products .pf-next__link {
  font-size: 0.8125rem;
  color: var(--red);
  text-decoration: none;
  border-bottom: 1px solid rgba(164, 74, 50, 0.35);
  padding-bottom: 0.15rem;
}

.page-products .pf-next__link:hover {
  color: var(--dark-red);
  border-bottom-color: var(--dark-red);
}

.page-products .pf-related {
  list-style: none;
  margin: 2rem 0 0;
  padding: 1rem 0 0;
  border-top: 1px solid var(--pf-rule);
  display: grid;
  gap: 0.6rem;
}

.page-products .pf-related a {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--copper);
  text-decoration: none;
  border-bottom: 1px solid rgba(122, 90, 46, 0.32);
}

.page-products .pf-related a:hover {
  color: var(--dark-red);
  border-bottom-color: var(--dark-red);
}

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

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

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

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

@media (min-width: 900px) {
  .page-products .section {
    padding: 4rem 0;
  }

  .page-products .pf-hero {
    padding: 1.5rem 0 4rem;
  }

  .page-products .pf-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 3rem;
    align-items: start;
    padding-top: 2.25rem;
  }

  .page-products .pf-hero__figure {
    margin-top: 2.5rem;
  }

  .page-products .pf-benefits__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 2.5rem;
    align-items: start;
  }

  .page-products .pf-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    border-top: 1px solid var(--line-strong);
    border-bottom: 1px solid var(--line-strong);
    margin-bottom: 2.25rem;
  }

  .page-products .pf-flow__item {
    border: 0;
    border-right: 1px solid var(--pf-rule);
    background: transparent;
    padding: 1rem 1.1rem 1.15rem;
  }

  .page-products .pf-flow__item:last-child {
    border-right: 0;
  }

  .page-products .pf-account__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
    gap: 2.5rem;
    align-items: start;
  }

  .page-products .pf-relogin__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.75fr);
    gap: 3rem;
    align-items: start;
  }

  .page-products .pf-cases__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 2.5rem;
    align-items: start;
  }

  .page-products .pf-version__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
  }
}

@media (min-width: 1100px) {
  .page-products .pf-boards {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 1.5rem;
  }

  .page-products .pf-board:nth-child(1) {
    grid-column: span 7;
  }

  .page-products .pf-board:nth-child(2) {
    grid-column: span 5;
    margin-top: 2.25rem;
  }

  .page-products .pf-board:nth-child(3) {
    grid-column: span 5;
  }

  .page-products .pf-board:nth-child(4) {
    grid-column: span 7;
    margin-top: 2.25rem;
  }

  .page-products .pf-board:nth-child(5) {
    grid-column: span 6;
  }

  .page-products .pf-board:nth-child(6) {
    grid-column: span 6;
    margin-top: 2.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .tag-filter__btn,
  .page-products .pf-step__sign,
  .page-products .pf-board {
    transition: none;
  }
}
<<<PAGE_CSS_END>>>
</main>