.page-products {
  --pf-rule: rgba(143, 166, 178, .16);
  --pf-card: var(--ink-800);
  --pf-card-hover: #0f2338;
  background: var(--ink-900);
  color: var(--body-text);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-products h1,
.page-products h2,
.page-products h3 {
  font-family: var(--font-display);
  color: var(--mist);
  line-height: 1.28;
  letter-spacing: .01em;
}

.page-products > section {
  position: relative;
  scroll-margin-top: calc(var(--header-offset) + 1.5rem);
}

.page-products .section-head {
  margin-bottom: clamp(1.3rem, 2.6vw, 2.1rem);
}

.page-products a:focus-visible,
.page-products button:focus-visible,
.page-products summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-products .pf-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(1.6rem, 3.4vw, 2.4rem) clamp(2.2rem, 5vw, 3.6rem);
  border-bottom: 1px solid var(--pf-rule);
  background:
    radial-gradient(110% 85% at 88% 8%, rgba(79, 240, 208, .14), transparent 62%),
    radial-gradient(85% 70% at 4% 96%, rgba(232, 90, 154, .12), transparent 66%),
    var(--ink-900);
}

.page-products .pf-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
  z-index: -2;
}

.page-products .pf-hero__slash {
  position: absolute;
  top: -22%;
  right: -6%;
  width: 44%;
  height: 144%;
  z-index: -1;
  pointer-events: none;
  clip-path: polygon(38% 0, 100% 0, 62% 100%, 0 100%);
  background: linear-gradient(180deg, rgba(79, 240, 208, .12), rgba(242, 183, 91, .05) 55%, transparent);
}

.page-products .pf-hero .eyebrow {
  margin-top: 1.3rem;
}

.page-products .pf-hero h1 {
  margin: .75rem 0 0;
  font-size: clamp(1.9rem, 5.2vw, 3.3rem);
  max-width: 22ch;
}

.page-products .pf-hero__lede {
  margin: 1.1rem 0 0;
  max-width: 54ch;
  font-size: clamp(1rem, 1.35vw, 1.08rem);
  line-height: 1.8;
  color: rgba(234, 242, 245, .8);
}

.page-products .pf-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.6rem;
}

.page-products .pf-hero__strip {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem 1.5rem;
  margin: 1.9rem 0 0;
  padding: 1rem 0 0;
  list-style: none;
  border-top: 1px solid var(--pf-rule);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .05em;
  color: var(--slate);
}

.page-products .pf-hero__strip li {
  display: flex;
  align-items: center;
  gap: .5rem;
}

.page-products .pf-dot {
  flex: none;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}

/* ---------- 服务模块矩阵 ---------- */
.page-products .pf-modules {
  padding-block: clamp(2.3rem, 5vw, 3.6rem);
}

.page-products .pf-modules__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--pf-rule);
  border: 1px solid var(--pf-rule);
}

.page-products .pf-mod {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: 1.5rem 1.25rem 1.5rem;
  background: var(--pf-card);
  transition: background .3s var(--ease);
}

.page-products .pf-mod::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(79, 240, 208, 0));
  opacity: 0;
  transition: opacity .3s var(--ease);
}

.page-products .pf-mod:hover {
  background: var(--pf-card-hover);
}

.page-products .pf-mod:hover::before,
.page-products .pf-mod--accent::before {
  opacity: 1;
}

.page-products .pf-mod--accent::before {
  background: linear-gradient(90deg, var(--gold), rgba(242, 183, 91, 0));
}

.page-products .pf-mod__num {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .14em;
  color: var(--gold);
}

.page-products .pf-mod--accent .pf-mod__num {
  color: var(--cyan);
}

.page-products .pf-mod__title {
  font-size: 1.14rem;
}

.page-products .pf-mod__text {
  margin: 0;
  font-size: .94rem;
  line-height: 1.75;
  color: rgba(234, 242, 245, .74);
}

.page-products .pf-mod__meta {
  margin: auto 0 0;
  padding-top: .75rem;
  border-top: 1px solid var(--pf-rule);
  font-family: var(--font-mono);
  font-size: .71rem;
  letter-spacing: .05em;
  color: var(--slate);
}

/* ---------- 设备确认 ---------- */
.page-products .pf-device {
  padding-block: clamp(2.3rem, 5vw, 3.6rem);
  border-top: 1px solid var(--pf-rule);
  background: linear-gradient(180deg, rgba(11, 27, 46, .9), rgba(7, 17, 31, 0) 92%);
}

.page-products .pf-device__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem;
}

.page-products .pf-steps {
  position: relative;
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pf-steps::before {
  content: "";
  position: absolute;
  left: 2.05rem;
  top: 1.7rem;
  bottom: 1.7rem;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--gold) 58%, rgba(242, 183, 91, 0));
}

.page-products .pf-step {
  position: relative;
  padding: 1.3rem 1.25rem 1.35rem 4.4rem;
  background: rgba(11, 27, 46, .8);
  border: 1px solid var(--pf-rule);
  border-left: 2px solid rgba(79, 240, 208, .38);
}

.page-products .pf-step__badge {
  position: absolute;
  left: 1.05rem;
  top: 1.35rem;
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  z-index: 1;
  background: var(--cyan);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .04em;
}

.page-products .pf-step:nth-child(3) .pf-step__badge {
  background: var(--gold);
}

.page-products .pf-step__title {
  margin: 0 0 .45rem;
  font-size: 1.08rem;
}

.page-products .pf-step__text {
  margin: 0;
  font-size: .94rem;
  line-height: 1.78;
  color: rgba(234, 242, 245, .75);
}

.page-products .pf-step__hint {
  margin: .6rem 0 0;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--slate);
}

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

/* ---------- 站内索引 ---------- */
.page-products .pf-index {
  padding-block: clamp(2.3rem, 5vw, 3.6rem);
  border-top: 1px solid var(--pf-rule);
}

.page-products .pf-index__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.8rem;
}

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

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

.page-products .pf-filter__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: 1.15rem;
}

.page-products .pf-filter__tab {
  padding: .5rem 1rem;
  border: 1px solid var(--line-strong);
  color: var(--slate);
  font-family: var(--font-mono);
  font-size: .77rem;
  letter-spacing: .08em;
  cursor: pointer;
  user-select: none;
  transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}

.page-products .pf-filter__tab:hover {
  color: var(--mist);
  border-color: var(--line-cyan);
}

.page-products #pf-f-all:checked ~ .pf-filter__tabs label[for="pf-f-all"],
.page-products #pf-f-login:checked ~ .pf-filter__tabs label[for="pf-f-login"],
.page-products #pf-f-device:checked ~ .pf-filter__tabs label[for="pf-f-device"],
.page-products #pf-f-update:checked ~ .pf-filter__tabs label[for="pf-f-update"],
.page-products #pf-f-help:checked ~ .pf-filter__tabs label[for="pf-f-help"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
}

.page-products #pf-f-all:focus-visible ~ .pf-filter__tabs label[for="pf-f-all"],
.page-products #pf-f-login:focus-visible ~ .pf-filter__tabs label[for="pf-f-login"],
.page-products #pf-f-device:focus-visible ~ .pf-filter__tabs label[for="pf-f-device"],
.page-products #pf-f-update:focus-visible ~ .pf-filter__tabs label[for="pf-f-update"],
.page-products #pf-f-help:focus-visible ~ .pf-filter__tabs label[for="pf-f-help"] {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-products #pf-f-login:checked ~ .pf-filter__list .pf-filter__item:not([data-cat="login"]),
.page-products #pf-f-device:checked ~ .pf-filter__list .pf-filter__item:not([data-cat="device"]),
.page-products #pf-f-update:checked ~ .pf-filter__list .pf-filter__item:not([data-cat="update"]),
.page-products #pf-f-help:checked ~ .pf-filter__list .pf-filter__item:not([data-cat="help"]) {
  display: none;
}

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

.page-products .pf-filter__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "tag title"
    "tag desc";
  align-items: start;
  gap: .2rem .85rem;
  padding: .95rem 1.05rem;
  background: var(--pf-card);
}

.page-products .pf-filter__item .tag {
  grid-area: tag;
  align-self: center;
}

.page-products .pf-filter__title {
  grid-area: title;
  font-size: .97rem;
  color: var(--mist);
}

.page-products .pf-filter__desc {
  grid-area: desc;
  font-size: .84rem;
  line-height: 1.62;
  color: var(--slate);
}

.page-products .pf-index__aside {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.page-products .pf-index__aside .media-frame {
  margin: 0;
}

.page-products .pf-index__copy {
  display: flex;
  flex-direction: column;
  gap: .8rem;
  padding: 1.1rem 1.15rem;
  background: var(--pf-card);
  border: 1px solid var(--pf-rule);
  border-left: 2px solid rgba(232, 90, 154, .5);
}

.page-products .pf-index__copy p {
  margin: 0;
  font-size: .89rem;
  line-height: 1.72;
  color: rgba(234, 242, 245, .72);
}

/* ---------- 适配清单 ---------- */
.page-products .pf-fit {
  padding-block: clamp(2.3rem, 5vw, 3.6rem);
  border-top: 1px solid var(--pf-rule);
  background: radial-gradient(78% 62% at 12% 0%, rgba(242, 183, 91, .07), transparent 62%);
}

.page-products .pf-fit__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem;
}

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

.page-products .pf-fit__panel {
  margin-bottom: .6rem;
  background: var(--pf-card);
  border: 1px solid var(--pf-rule);
  border-left: 2px solid rgba(242, 183, 91, .42);
}

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

.page-products .pf-fit__panel summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .95rem 1.05rem;
  list-style: none;
  cursor: pointer;
  font-size: .97rem;
  color: var(--mist);
}

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

.page-products .pf-fit__panel summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--gold);
  transition: color .25s var(--ease);
}

.page-products .pf-fit__panel[open] summary::after {
  content: "–";
}

.page-products .pf-fit__panel summary:hover {
  color: var(--cyan);
}

.page-products .pf-fit__body {
  padding: 0 1.05rem 1.05rem;
  font-size: .89rem;
  line-height: 1.82;
  color: rgba(234, 242, 245, .73);
  border-top: 1px solid var(--pf-rule);
  padding-top: .85rem;
}

.page-products .pf-fit__body p {
  margin: 0;
}

/* ---------- 帮助入口 ---------- */
.page-products .pf-help {
  padding-block: clamp(2.3rem, 5vw, 3.6rem);
  border-top: 1px solid var(--pf-rule);
  background: linear-gradient(120deg, rgba(14, 92, 90, .3), rgba(7, 17, 31, 0) 58%);
}

.page-products .pf-help__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.6rem;
}

.page-products .pf-help__list {
  display: grid;
  gap: 1px;
  margin: 0 0 1.4rem;
  padding: 0;
  list-style: none;
  background: var(--pf-rule);
  border: 1px solid var(--pf-rule);
}

.page-products .pf-help__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: .3rem 1rem;
  padding: .85rem 1.05rem;
  background: var(--pf-card);
}

.page-products .pf-help__key {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--gold);
}

.page-products .pf-help__val {
  font-size: .92rem;
  color: var(--mist);
  word-break: break-all;
}

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

/* ---------- 服务能力数字 ---------- */
.page-products .pf-stats {
  padding-block: clamp(2.3rem, 5vw, 3.6rem);
  border-top: 1px solid var(--pf-rule);
}

.page-products .pf-stats__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--pf-rule);
  border: 1px solid var(--pf-rule);
}

.page-products .pf-stat {
  display: flex;
  flex-direction: column-reverse;
  justify-content: flex-end;
  gap: .4rem;
  padding: 1.15rem 1rem 1.25rem;
  background: var(--pf-card);
}

.page-products .pf-stat__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.45rem, 3vw, 1.95rem);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--mist);
}

.page-products .pf-stat__num span {
  margin-left: .16rem;
  font-size: .82rem;
  letter-spacing: 0;
  color: var(--gold);
}

.page-products .pf-stat__label {
  font-family: var(--font-mono);
  font-size: .71rem;
  letter-spacing: .1em;
  color: var(--slate);
}

.page-products .pf-stats__foot {
  margin: 1.2rem 0 0;
  max-width: 62ch;
  font-size: .9rem;
  line-height: 1.8;
  color: rgba(234, 242, 245, .7);
}

/* ---------- 延伸阅读 ---------- */
.page-products .pf-next {
  padding-block: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--pf-rule);
  background: var(--ink-800);
}

.page-products .pf-next__title {
  margin: 0 0 1.1rem;
  font-size: clamp(1.18rem, 2.4vw, 1.55rem);
}

.page-products .pf-next__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--pf-rule);
}

.page-products .pf-next__list li {
  background: var(--ink-800);
}

.page-products .pf-next__list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .95rem .2rem;
  color: var(--mist);
  font-size: .96rem;
  text-decoration: none;
  transition: color .25s var(--ease), padding-left .25s var(--ease);
}

.page-products .pf-next__list a:hover {
  color: var(--cyan);
  padding-left: .7rem;
}

.page-products .pf-next__arrow {
  flex: none;
  font-family: var(--font-mono);
  color: var(--gold);
}

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

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

  .page-products .pf-index__copy {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-products .pf-index__copy p {
    max-width: 34ch;
  }
}

@media (min-width: 900px) {
  .page-products .pf-device__layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 2.4rem;
    align-items: start;
  }

  .page-products .pf-fit__layout {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: 2.2rem;
    align-items: start;
  }

  .page-products .pf-help__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .82fr);
    gap: 2.4rem;
    align-items: center;
  }

  .page-products .pf-index__layout {
    grid-template-columns: minmax(0, 1.38fr) minmax(0, .62fr);
    gap: 2rem;
    align-items: start;
  }

  .page-products .pf-steps::before {
    top: 2rem;
    bottom: 2rem;
  }
}

@media (min-width: 1024px) {
  .page-products .pf-modules__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pf-hero__lede {
    max-width: 48ch;
  }
}

@media (min-width: 1100px) {
  .page-products .pf-stats__grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pf-mod,
  .page-products .pf-filter__tab,
  .page-products .pf-next__list a,
  .page-products .pf-fit__panel summary::after {
    transition: none;
  }
}

已在上方输出完毕。