.page-products .breadcrumb {
  padding-top: 24px;
  padding-bottom: 4px;
}

.page-products .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--stone);
}

.page-products .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-strong);
}

.page-products .breadcrumb a {
  color: var(--ice);
  text-decoration: none;
}

.page-products .breadcrumb a:hover {
  color: var(--gold);
}

/* ---------- 首屏 ---------- */

.page-products .pf-hero {
  padding-top: 28px;
  padding-bottom: 8px;
}

.page-products .pf-hero .eyebrow {
  color: var(--gold);
  letter-spacing: .14em;
  text-transform: uppercase;
}

.page-products .pf-hero-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 22px;
  align-items: end;
}

.page-products .pf-hero-text h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 60px);
  line-height: 1.14;
  letter-spacing: -.01em;
  margin: 0 0 20px;
  color: var(--paper);
  max-width: 20em;
}

.page-products .pf-hero-lead {
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.85;
  color: var(--stone);
  max-width: var(--measure);
  margin: 0 0 28px;
}

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

.page-products .pf-hero-mark {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  padding: 20px 0 8px 24px;
  border-left: 1px solid var(--line-strong);
}

.page-products .pf-hero-num {
  font-family: var(--font-num);
  font-size: clamp(84px, 15vw, 176px);
  line-height: .78;
  color: var(--gold);
  letter-spacing: -.04em;
  display: block;
}

.page-products .pf-hero-unit {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 30px);
  color: var(--ink);
  background: var(--gold);
  border-radius: 999px;
  padding: 2px 16px 4px;
  line-height: 1.4;
}

.page-products .pf-hero-cap {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ice);
  margin: 0 0 6px;
  padding-left: 6px;
}

.page-products .pf-hero-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 40px 0 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .pf-fact {
  background: var(--panel);
  padding: 16px 18px;
}

.page-products .pf-fact dt {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--stone);
  margin-bottom: 6px;
}

.page-products .pf-fact dd {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .pf-fact .num {
  font-family: var(--font-num);
  color: var(--gold);
  font-size: 24px;
}

/* ---------- 章节通用 ---------- */

.page-products .pf-section {
  padding-top: 56px;
}

.page-products .pf-sub {
  margin: 14px 0 0;
  font-size: clamp(15px, 1.05vw, 16px);
  line-height: 1.8;
  color: var(--stone);
  max-width: var(--measure);
}

/* ---------- 三个起点 ---------- */

.page-products .pf-why {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 32px;
  border-top: 1px solid var(--line);
}

.page-products .pf-why-item {
  padding: 26px 0 28px;
  border-bottom: 1px solid var(--line);
}

.page-products .pf-why-idx {
  font-family: var(--font-num);
  font-size: 34px;
  line-height: 1;
  color: var(--ice-deep);
  margin: 0 0 12px;
}

.page-products .pf-why-item h3 {
  font-size: 20px;
  font-weight: 900;
  color: var(--paper);
  margin: 0 0 10px;
  line-height: 1.45;
}

.page-products .pf-why-item p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
  margin: 0;
  max-width: 40em;
}

.page-products .pf-why-do {
  margin-top: 12px !important;
  font-size: 14px !important;
  color: var(--gold) !important;
}

/* ---------- 三步流程 ---------- */

.page-products .pf-flow {
  margin-top: 36px;
}

.page-products .pf-flow-rail {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-products .pf-flow-tab {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 210px;
  text-align: left;
  padding: 16px 20px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--stone);
  cursor: pointer;
  transition: background-color 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.page-products .pf-flow-tab:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}

.page-products .pf-flow-tab[aria-selected="true"] {
  background: var(--ice);
  border-color: var(--ice);
  color: var(--ink);
}

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

.page-products .pf-flow-num {
  font-family: var(--font-num);
  font-size: 30px;
  line-height: 1;
  color: var(--gold);
}

.page-products .pf-flow-tab[aria-selected="true"] .pf-flow-num {
  color: var(--ink);
}

.page-products .pf-flow-name {
  font-size: 13px;
  line-height: 1.5;
  font-weight: 700;
}

.page-products .pf-flow-panels {
  margin-top: 28px;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 26px 22px;
}

.page-products .pf-flow-panel:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

.page-products .pf-panel-title {
  font-size: clamp(19px, 2.2vw, 26px);
  font-weight: 900;
  color: var(--paper);
  margin: 0 0 18px;
  line-height: 1.35;
}

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

.page-products .pf-points li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

.page-products .pf-k {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ice);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 2px 10px;
  line-height: 1.7;
  height: fit-content;
}

.page-products .pf-note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--gold-line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
  max-width: 44em;
}

/* ---------- 图片通用 ---------- */

.page-products .pf-figure {
  margin: 22px 0 0;
}

.page-products .pf-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  background: var(--ink);
}

.page-products .pf-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 功能模块 ---------- */

.page-products .pf-modules {
  margin-top: 32px;
  border-top: 1px solid var(--line);
}

.page-products .pf-mod {
  border-bottom: 1px solid var(--line);
}

.page-products .pf-mod summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 4px;
  cursor: pointer;
  list-style: none;
  color: var(--paper);
}

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

.page-products .pf-mod summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

.page-products .pf-mod-idx {
  font-family: var(--font-num);
  font-size: 22px;
  color: var(--gold);
  flex: 0 0 auto;
}

.page-products .pf-mod-name {
  font-size: 19px;
  font-weight: 900;
  flex: 1 1 auto;
}

.page-products .pf-mod-tag {
  flex: 0 0 auto;
}

.page-products .pf-mod .collapse-body {
  padding: 0 4px 24px 40px;
}

.page-products .pf-mod .collapse-body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
  max-width: 42em;
}

.page-products .pf-mod-meta {
  font-size: 13px !important;
  color: var(--ice) !important;
}

.page-products .pf-figure--wide {
  margin-top: 36px;
}

/* ---------- 双端协同 ---------- */

.page-products .pf-dual {
  margin-top: 32px;
}

.page-products .pf-dual-switch {
  display: flex;
  gap: 8px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  width: fit-content;
  max-width: 100%;
}

.page-products .pf-dual-tab {
  border: 0;
  background: transparent;
  color: var(--stone);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  padding: 10px 22px;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease;
  white-space: nowrap;
}

.page-products .pf-dual-tab[aria-selected="true"] {
  background: var(--gold);
  color: var(--ink);
}

.page-products .pf-dual-tab:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-products .pf-dual-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 26px;
}

.page-products .pf-dual-copy {
  border-left: 2px solid var(--ice-deep);
  padding-left: 22px;
}

.page-products .pf-dual-copy h3 {
  font-size: 21px;
  font-weight: 900;
  color: var(--paper);
  margin: 0 0 16px;
}

.page-products .pf-dual-copy .tabpanel:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

.page-products .pf-dual-note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
  max-width: 38em;
}

.page-products .pf-dual-media {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

/* ---------- 适配环境 ---------- */

.page-products .pf-env {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 32px;
}

.page-products .pf-check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  border-top: 2px solid var(--ice);
  background: var(--panel);
}

.page-products .pf-check {
  border-bottom: 1px solid var(--line);
}

.page-products .pf-check:last-child {
  border-bottom: 0;
}

.page-products .pf-check-input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.page-products .pf-check-label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  font-size: 15px;
  line-height: 1.75;
  color: var(--stone);
}

.page-products .pf-check-box {
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 3px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: var(--ink);
  position: relative;
  transition: background-color 160ms ease, border-color 160ms ease;
}

.page-products .pf-check-box::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 1px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(42deg) scale(0);
  transition: transform 160ms ease;
}

.page-products .pf-check-input:checked + .pf-check-label {
  color: var(--paper);
}

.page-products .pf-check-input:checked + .pf-check-label .pf-check-box {
  background: var(--gold);
  border-color: var(--gold);
}

.page-products .pf-check-input:checked + .pf-check-label .pf-check-box::after {
  transform: rotate(42deg) scale(1);
}

.page-products .pf-check-input:focus-visible + .pf-check-label .pf-check-box {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-products .pf-env-side {
  display: grid;
  gap: 18px;
}

.page-products .pf-env-panel {
  padding: 22px 20px;
}

.page-products .pf-env-panel h3 {
  font-size: 19px;
  font-weight: 900;
  color: var(--paper);
  margin: 0 0 16px;
}

/* ---------- 场景示范 ---------- */

.page-products .pf-cases {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 32px;
}

.page-products .pf-case {
  border: 1px solid var(--line);
  border-left: 3px solid var(--violet);
  background: var(--panel);
  padding: 24px 22px;
}

.page-products .pf-case-tag {
  display: inline-block;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--violet);
  border: 1px solid rgba(139, 92, 246, .45);
  border-radius: 999px;
  padding: 3px 12px;
  margin: 0 0 14px;
}

.page-products .pf-case h3 {
  font-size: 19px;
  font-weight: 900;
  color: var(--paper);
  margin: 0 0 12px;
  line-height: 1.45;
}

.page-products .pf-case p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--stone);
  margin: 0 0 16px;
}

.page-products .pf-case-time {
  font-family: var(--font-num);
  font-size: 15px;
  color: var(--gold);
  margin: 0 !important;
}

/* ---------- 自助排查 ---------- */

.page-products .pf-trouble {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 32px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .pf-trouble-item {
  background: var(--ink);
  padding: 22px 20px;
}

.page-products .pf-trouble-item h3 {
  font-size: 17px;
  font-weight: 900;
  color: var(--ice);
  margin: 0 0 10px;
  line-height: 1.5;
}

.page-products .pf-trouble-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
}

/* ---------- 结尾 ---------- */

.page-products .pf-outro {
  margin-top: 48px;
  padding: 30px 24px;
  background: linear-gradient(120deg, var(--ice-deep) 0%, var(--panel) 62%);
  border: 1px solid var(--line-strong);
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: center;
}

.page-products .pf-outro-text h2 {
  font-size: clamp(20px, 2.6vw, 30px);
  font-weight: 900;
  color: var(--paper);
  margin: 0 0 12px;
  line-height: 1.35;
}

.page-products .pf-outro-text p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(242, 239, 231, .82);
  max-width: 40em;
}

.page-products .pf-outro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-products .pf-hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-products .pf-why-item {
    border-bottom: 0;
    border-right: 1px solid var(--line);
    padding: 30px 24px 30px 0;
  }

  .page-products .pf-why-item:last-child {
    border-right: 0;
    padding-right: 0;
  }

  .page-products .pf-why-item:not(:first-child) {
    padding-left: 24px;
  }

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

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

  .page-products .pf-dual-media {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    align-items: start;
  }

  .page-products .pf-flow-panels {
    padding: 34px 30px;
  }
}

@media (min-width: 900px) {
  .page-products .pf-hero {
    padding-top: 44px;
  }

  .page-products .pf-hero-body {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
  }

  .page-products .pf-hero-mark {
    justify-content: flex-end;
    padding-bottom: 14px;
  }

  .page-products .pf-flow {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }

  .page-products .pf-flow-rail {
    flex-direction: column;
    overflow: visible;
    gap: 14px;
    padding-bottom: 0;
  }

  .page-products .pf-flow-tab {
    width: 100%;
    min-width: 0;
    border-radius: 16px;
  }

  .page-products .pf-flow-panels {
    margin-top: 0;
  }

  .page-products .pf-dual-body {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 40px;
  }

  .page-products .pf-env {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: 40px;
  }

  .page-products .pf-outro {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    padding: 40px 36px;
  }

  .page-products .pf-outro-actions {
    justify-content: flex-end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pf-flow-tab,
  .page-products .pf-dual-tab,
  .page-products .pf-check-box,
  .page-products .pf-check-box::after {
    transition: none;
  }

  .page-products .pf-flow-tab:hover {
    transform: none;
  }
}