.page-products {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
  padding-bottom: 8px;
}

.page-products h2 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(24px, 4.2vw, 38px);
  line-height: 1.16;
  margin: 12px 0 0;
  max-width: 22ch;
}

.page-products h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.4;
  letter-spacing: -0.01em;
  margin: 0 0 10px;
}

.page-products a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 192, 91, 0.35);
}

.page-products a:hover,
.page-products a:focus-visible {
  border-bottom-color: var(--amber);
}

/* ---------- 首屏 ---------- */

.page-products .pp-hero {
  position: relative;
  padding: clamp(14px, 3vw, 28px) 0 clamp(28px, 4.5vw, 52px);
  background:
    radial-gradient(90% 130% at 78% -12%, rgba(224, 138, 46, 0.17), transparent 68%),
    radial-gradient(70% 110% at 6% 0%, rgba(78, 140, 160, 0.09), transparent 72%);
  border-bottom: 1px solid var(--line-soft);
}

.page-products .breadcrumbs {
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-products .crumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0 0 clamp(18px, 3vw, 30px);
  padding: 0;
  color: var(--mist);
}

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

.page-products .crumb-list a {
  color: var(--mist);
  border-bottom-color: transparent;
}

.page-products .crumb-list a:hover,
.page-products .crumb-list a:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-products .crumble-none {
  color: var(--paper);
}

.page-products .pp-h1 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(30px, 6.6vw, 62px);
  line-height: 1.07;
  margin: clamp(16px, 2.6vw, 26px) 0 0;
  max-width: 15em;
}

.page-products .pp-sub {
  margin: 20px 0 0;
  max-width: 62ch;
  color: var(--mist);
  font-size: 17px;
  line-height: 1.9;
}

.page-products .pp-facts {
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px 24px;
}

.page-products .pp-facts dt {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-products .pp-facts dd {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(18px, 2.4vw, 25px);
  letter-spacing: -0.01em;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

/* ---------- 目录条 ---------- */

.page-products .pp-index {
  border-bottom: 1px solid var(--line-soft);
  background: rgba(16, 26, 43, 0.72);
}

.page-products .pp-index-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 6px;
  padding: 10px 0;
}

.page-products .pp-index a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 7px 11px;
  font-size: 13.5px;
  letter-spacing: 0.04em;
  color: var(--mist);
  border: 1px solid transparent;
  transition: color 120ms ease, border-color 120ms ease;
}

.page-products .pp-index a .mono {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-products .pp-index a:hover,
.page-products .pp-index a:focus-visible {
  color: var(--amber);
  border-color: var(--line);
}

/* ---------- 章节骨架 ---------- */

.page-products .pp-section {
  padding: clamp(52px, 8.5vw, 100px) 0 0;
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-products .pp-head {
  max-width: 70ch;
}

.page-products .pp-lead {
  margin: 18px 0 0;
  max-width: 58ch;
  color: var(--mist);
  font-size: 16.5px;
  line-height: 1.9;
}

/* ---------- 01 速查 ---------- */

.page-products .quick-layout {
  display: grid;
  gap: 28px;
  margin-top: 34px;
}

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

.page-products .quick-card {
  position: relative;
  border: 1px solid var(--line);
  background: var(--slate);
  padding: 22px 20px 20px 24px;
}

.page-products .quick-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--gold), rgba(224, 138, 46, 0) 78%);
}

.page-products .quick-card h3 {
  margin-bottom: 10px;
}

.page-products .quick-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-products .quick-rows {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border-top: 1px solid var(--line);
}

.page-products .quick-rows li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 14px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 13px;
}

.page-products .quick-rows span {
  color: var(--mist);
  letter-spacing: 0.04em;
}

.page-products .quick-rows b {
  color: var(--amber);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.page-products .quick-visual,
.page-products .path-media,
.page-products .hardware-media,
.page-products .case-media {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--night);
  overflow: hidden;
}

.page-products .quick-visual img,
.page-products .path-media img,
.page-products .hardware-media img,
.page-products .case-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .path-media figcaption {
  padding: 10px 12px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-products .speed-note {
  margin-top: 26px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--copper);
  background: var(--note);
  color: var(--ink-text);
  padding: 16px 18px;
}

.page-products .speed-note .note-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--ink-text);
}

.page-products .speed-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-text);
}

/* ---------- 02 选型路径 ---------- */

.page-products .path-layout {
  display: grid;
  gap: 30px;
  margin-top: 34px;
}

.page-products .path {
  position: relative;
}

.page-products .path-step {
  position: relative;
  border: 1px solid var(--line);
  background: var(--night);
  margin-bottom: -1px;
}

.page-products .path-sum {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16.5px;
  line-height: 1.4;
}

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

.page-products .path-sum:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: -2px;
}

.page-products .path-num {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-products .path-name {
  flex: 1 1 auto;
  min-width: 0;
}

.page-products .path-mark {
  flex: none;
  align-self: center;
  width: 10px;
  height: 10px;
  border-right: 1px solid var(--gold);
  border-bottom: 1px solid var(--gold);
  transform: rotate(45deg);
  transition: transform 180ms ease;
}

.page-products .path-step[open] {
  background: var(--slate);
}

.page-products .path-step[open] .path-mark {
  transform: rotate(-135deg);
}

.page-products .path-body {
  padding: 0 18px 18px 18px;
  border-top: 1px solid var(--line-soft);
}

.page-products .path-body p {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--mist);
}

.page-products .path-body .path-tip {
  position: relative;
  padding-left: 14px;
  color: var(--amber);
  font-size: 13.5px;
}

.page-products .path-body .path-tip::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 8px;
  height: 1px;
  background: var(--copper);
}

/* ---------- 03 场景对照 ---------- */

.page-products .table-wrap {
  margin-top: 32px;
  border: 1px solid var(--line);
  background: var(--night);
  overflow-x: auto;
}

.page-products .table-wrap:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}

.page-products .scene-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-products .scene-table th,
.page-products .scene-table td {
  text-align: left;
  padding: 14px 16px;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
  line-height: 1.75;
}

.page-products .scene-table thead th {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.page-products .scene-table tbody th {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  color: var(--paper);
  white-space: nowrap;
  border-right: 1px solid var(--line-soft);
}

.page-products .scene-table tbody td {
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}

.page-products .scene-table tbody tr:nth-child(even) {
  background: rgba(244, 239, 230, 0.035);
}

.page-products .scene-table tbody tr:hover {
  background: rgba(224, 138, 46, 0.07);
}

.page-products .hardware {
  margin-top: 40px;
  display: grid;
  gap: 26px;
}

.page-products .hardware-body h3 {
  font-size: 20px;
}

.page-products .hardware-body p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--mist);
  max-width: 58ch;
}

.page-products .hardware-body .muted {
  color: var(--mist);
  font-size: 13.5px;
}

/* ---------- 04 案例 ---------- */

.page-products .case-filter {
  margin: 30px 0 26px;
}

.page-products .chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .chip {
  font: inherit;
  font-size: 13.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 8px 14px;
  cursor: pointer;
  transition: color 120ms ease, border-color 120ms ease, background-color 120ms ease;
}

.page-products .chip:hover,
.page-products .chip:focus-visible {
  color: var(--amber);
  border-color: var(--gold);
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}

.page-products .chip[aria-pressed="true"] {
  color: var(--ink);
  background: var(--gold);
  border-color: var(--gold);
}

.page-products .case-grid {
  display: grid;
  gap: 30px;
  grid-template-columns: minmax(0, 1fr);
}

.page-products .case-item {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-products .case-media {
  margin-bottom: 16px;
}

.page-products .case-cat {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-products .case-item h3 {
  margin: 8px 0 0;
  font-size: 17px;
  line-height: 1.45;
}

.page-products .case-item > p:not(.case-cat) {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-products .case-points {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 7px;
}

.page-products .case-points li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper);
}

.page-products .case-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 1px;
  background: var(--copper);
}

/* ---------- 05 安装验收 ---------- */

.page-products .install-list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-products .install-step {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0;
  border-top: 1px solid var(--line-soft);
}

.page-products .install-step:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-products .install-num {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  padding-top: 4px;
  font-variant-numeric: tabular-nums;
}

.page-products .install-body h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.page-products .install-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-products .install-body .install-owner {
  margin-top: 9px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--copper);
}

/* ---------- 06 批量与定制 ---------- */

.page-products .steps {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-products .step {
  border-top: 2px solid var(--gold);
  padding-top: 16px;
}

.page-products .step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
  margin-bottom: 10px;
}

.page-products .step h3 {
  font-size: 17px;
}

.page-products .step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 收束 ---------- */

.page-products .pp-outro {
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-products .outro-panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: linear-gradient(158deg, var(--night) 12%, var(--ink) 78%);
  padding: clamp(28px, 5vw, 56px);
}

.page-products .outro-panel > * {
  position: relative;
  z-index: 1;
}

.page-products .outro-panel::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(224, 138, 46, 0.24), transparent 66%);
  pointer-events: none;
}

.page-products .outro-panel h2 {
  max-width: 26ch;
}

.page-products .outro-panel p {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--mist);
}

.page-products .outro-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.page-products .outro-actions .btn {
  border-bottom: none;
}

/* ---------- 响应式 ---------- */

@media (max-width: 640px) {
  .page-products .pp-facts {
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
  }

  .page-products .pp-index-inner {
    gap: 0 4px;
  }

  .page-products .pp-index a {
    padding: 6px 8px;
    font-size: 12.5px;
  }
}

@media (min-width: 720px) {
  .page-products .case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px;
  }

  .page-products .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 36px;
  }

  .page-products .install-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 56px;
  }

  .page-products .install-step:nth-child(2) {
    border-top-color: var(--line-soft);
  }
}

@media (min-width: 880px) {
  .page-products .hardware {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 44px;
    align-items: center;
    margin-top: 48px;
  }
}

@media (min-width: 960px) {
  .page-products .quick-layout {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-products .quick-card:nth-child(2) {
    margin-left: 24px;
  }

  .page-products .quick-card:nth-child(3) {
    margin-left: 48px;
  }

  .page-products .quick-visual {
    margin-top: 40px;
  }
}

@media (min-width: 980px) {
  .page-products .path-layout {
    grid-template-columns: minmax(220px, 300px) minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-products .path {
    padding-left: 56px;
  }

  .page-products .path::before {
    content: "";
    position: absolute;
    left: 21px;
    top: 26px;
    bottom: 26px;
    width: 1px;
    background: var(--line);
  }

  .page-products .path-step::before {
    content: "";
    position: absolute;
    left: -35px;
    top: 30px;
    width: 28px;
    height: 1px;
    background: var(--line);
  }

  .page-products .path-step::after {
    content: "";
    position: absolute;
    left: -39px;
    top: 27px;
    width: 7px;
    height: 7px;
    background: var(--ink);
    border: 1px solid var(--gold);
  }

  .page-products .path-step[open]::after {
    background: var(--gold);
  }

  .page-products .path-media {
    margin-top: 8px;
  }
}

@media (min-width: 1080px) {
  .page-products .case-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 26px;
  }

  .page-products .case-item:nth-child(1) {
    margin-top: 0;
  }

  .page-products .case-item:nth-child(2) {
    margin-top: 32px;
  }

  .page-products .case-item:nth-child(3) {
    margin-top: 64px;
  }

  .page-products .case-item:nth-child(4) {
    margin-top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .path-mark,
  .page-products .path-step,
  .page-products .chip,
  .page-products .pp-index a {
    transition: none;
  }
}