.page-products {
  --pr-pad: clamp(56px, 8vw, 104px);
  --pr-offset: 48px;
  --pr-offset-lg: 96px;
  --pr-para: var(--warm-86);
  background: var(--ink);
  color: var(--warm);
  font-family: var(--font-sans);
  overflow-x: clip;
}

.page-products p {
  margin: 0 0 1em;
  line-height: 1.78;
  color: var(--pr-para);
}

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

.page-products a {
  color: var(--gold-light);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

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

.page-products .h2 {
  font-size: clamp(28px, 4.4vw, 48px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  font-weight: 800;
  margin: 12px 0 18px;
  color: var(--warm);
}

.page-products .h3 {
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -0.005em;
  margin: 0 0 10px;
  color: var(--warm);
}

.page-products .mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* ---------- 首屏 ---------- */

.page-products .pr-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(40px, 7vw, 88px) 0 clamp(44px, 6vw, 88px);
  border-bottom: 1px solid var(--hair);
  background:
    radial-gradient(120% 110% at 90% 0%, rgba(177, 18, 38, 0.34), transparent 60%),
    linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 82%);
}

.page-products .pr-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, rgba(212, 175, 55, 0.055) 0 1px, transparent 1px 108px);
  pointer-events: none;
}

.page-products .pr-hero .breadcrumb {
  position: relative;
  z-index: 1;
  font-size: 13px;
  color: var(--cool);
}

.page-products .pr-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-products .pr-hero__title {
  margin: 16px 0 24px;
  font-size: clamp(42px, 10vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  font-weight: 800;
  color: var(--warm);
}

.page-products .pr-hero__title::after {
  content: "";
  display: block;
  width: 88px;
  height: 6px;
  margin-top: 22px;
  background: var(--red);
}

.page-products .pr-hero__lead {
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17px);
}

.page-products .pr-hero__aside {
  align-self: end;
  padding: 22px 22px 24px;
  border: 1px solid var(--hair);
  border-left: 3px solid var(--red);
  background: rgba(14, 14, 14, 0.62);
}

.page-products .pr-hero__aside-label {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cool);
}

.page-products .pr-hero__ver {
  margin: 0 0 12px;
  font-size: clamp(44px, 9vw, 68px);
  line-height: 1;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--gold);
}

.page-products .pr-hero__aside-note {
  margin: 0 0 18px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--warm-72);
}

.page-products .pr-hero__copy {
  width: 100%;
}

/* ---------- 三列错位模块墙 ---------- */

.page-products .pr-wall {
  padding: var(--pr-pad) 0;
  background: var(--ink-2);
}

.page-products .pr-wall__banner {
  margin: 0 0 clamp(32px, 5vw, 60px);
  border: 1px solid var(--hair);
}

.page-products .pr-wall__intro {
  max-width: 62ch;
}

.page-products .pr-wall__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-top: clamp(28px, 4vw, 48px);
}

.page-products .pr-wall__col {
  position: relative;
  padding-top: 20px;
  border-top: 1px solid var(--hair);
}

.page-products .pr-wall__col::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 44px;
  height: 2px;
  background: var(--red);
}

.page-products .pr-wall__num {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-products .pr-wall__list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pr-wall__list li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--warm-72);
}

.page-products .pr-wall__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background: var(--gold);
}

/* ---------- 三步通道 ---------- */

.page-products .pr-steps {
  position: relative;
  overflow: hidden;
  padding: var(--pr-pad) 0;
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  background: var(--ink);
}

.page-products .pr-steps__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-products .pr-steps__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.26;
}

.page-products .pr-steps__inner {
  position: relative;
  z-index: 1;
}

.page-products .pr-steps__intro {
  max-width: 58ch;
}

.page-products .pr-steps__track {
  display: block;
  width: 100%;
  height: 8px;
  margin: clamp(24px, 4vw, 40px) 0 clamp(24px, 4vw, 36px);
  overflow: visible;
}

.page-products .pr-steps__seg {
  stroke-width: 3;
  stroke-linecap: butt;
  stroke-dasharray: 0 1200;
}

.page-products .pr-steps__seg--a {
  stroke: var(--red);
  opacity: 1;
}

.page-products .pr-steps__seg--b {
  stroke: var(--red);
  opacity: 0.6;
}

.page-products .pr-steps__seg--c {
  stroke: var(--gold);
  opacity: 0.55;
}

.page-products .pr-steps__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-products .pr-steps__item {
  position: relative;
  padding: 24px 0 0;
  border-top: 1px solid var(--hair-soft);
}

.page-products .pr-steps__dot {
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 4px rgba(177, 18, 38, 0.22);
}

.page-products .pr-steps__no {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-products .pr-steps__out {
  margin-top: 14px;
  padding-left: 12px;
  border-left: 2px solid var(--gold);
  font-size: 13px;
  color: var(--gold-light);
}

/* ---------- 稳定版切换 ---------- */

.page-products .pr-switch {
  padding: var(--pr-pad) 0;
  background: var(--ink-2);
}

.page-products .pr-switch__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 56px);
}

.page-products .pr-switch__lead {
  max-width: 52ch;
}

.page-products .pr-switch__phases {
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pr-switch__phase {
  display: grid;
  grid-template-columns: minmax(68px, auto) minmax(0, 1fr);
  gap: 18px;
  padding: 22px 0;
  border-top: 1px solid var(--hair);
}

.page-products .pr-switch__phase-no {
  margin: 3px 0 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  white-space: nowrap;
}

.page-products .pr-switch__media {
  margin: 0;
  border: 1px solid var(--hair);
  align-self: start;
}

/* ---------- 版本号对照 ---------- */

.page-products .pr-ver {
  position: relative;
  overflow: hidden;
  padding: var(--pr-pad) 0;
  background: var(--paper);
  color: var(--ink);
  --pr-para: #3F4145;
}

.page-products .pr-ver .h2 {
  color: var(--ink);
}

.page-products .pr-ver a {
  color: var(--red-deep);
}

.page-products .pr-ver__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.page-products .pr-ver__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.14;
  filter: grayscale(1) contrast(0.7);
}

.page-products .pr-ver__inner {
  position: relative;
  z-index: 1;
}

.page-products .pr-ver .exhibit-label {
  color: #6A6C70;
}

.page-products .pr-ver .exhibit-num {
  color: var(--red);
}

.page-products .pr-ver__lead {
  max-width: 60ch;
}

.page-products .pr-ver__scroll {
  margin-top: clamp(24px, 4vw, 40px);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-top: 2px solid var(--red);
}

.page-products .pr-ver__table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-products .pr-ver__table thead th {
  padding: 14px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #6A6C70;
  border-bottom: 1px solid rgba(14, 14, 14, 0.16);
  white-space: nowrap;
}

.page-products .pr-ver__table td {
  padding: 15px 16px;
  vertical-align: middle;
  line-height: 1.6;
  border-bottom: 1px solid rgba(14, 14, 14, 0.1);
  color: #3F4145;
}

.page-products .pr-ver__table tbody tr {
  transition: background-color 180ms var(--ease);
}

.page-products .pr-ver__table tbody tr:hover {
  background-color: rgba(177, 18, 38, 0.07);
}

.page-products .pr-ver__seg {
  font-size: 13px;
  color: #7A7C80;
  white-space: nowrap;
}

.page-products .pr-ver__code {
  display: inline-block;
  margin: -3px -7px;
  padding: 3px 7px;
  border: 0;
  border-radius: 2px;
  background: none;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--red);
  cursor: pointer;
  transition: color 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-products .pr-ver__code:hover,
.page-products .pr-ver__code:focus-visible {
  color: var(--red-deep);
  box-shadow: inset 0 0 0 1px var(--gold);
  outline: none;
}

.page-products .pr-ver__badge {
  display: inline-block;
  padding: 3px 9px;
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

.page-products .pr-ver__badge--now {
  background: var(--cyan);
  color: #FFFFFF;
}

.page-products .pr-ver__badge--past {
  border: 1px solid rgba(14, 14, 14, 0.22);
  color: #6A6C70;
}

.page-products .pr-ver__note {
  margin-top: clamp(20px, 3vw, 32px);
  max-width: 72ch;
  font-size: 14px;
}

/* ---------- 设备差异 ---------- */

.page-products .pr-device {
  padding: var(--pr-pad) 0;
  background: var(--ink);
}

.page-products .pr-device__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(32px, 5vw, 56px);
  align-items: center;
}

.page-products .pr-device__media {
  margin: 0;
  border: 1px solid var(--hair);
}

.page-products .pr-device__lead {
  max-width: 56ch;
}

.page-products .pr-device__compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: clamp(24px, 4vw, 36px);
}

.page-products .pr-device__col {
  padding-top: 18px;
  border-top: 1px solid var(--hair);
}

.page-products .pr-device__col-tag {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-products .pr-device__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pr-device__list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 10px;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--warm-72);
}

.page-products .pr-device__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 1px;
  background: var(--red);
}

/* ---------- 排查清单 ---------- */

.page-products .pr-check {
  padding: var(--pr-pad) 0;
  background: var(--ink-2);
}

.page-products .pr-check__lead {
  max-width: 54ch;
}

.page-products .pr-check__list {
  margin-top: clamp(24px, 4vw, 40px);
  border-top: 1px solid var(--hair);
}

.page-products .pr-check__item {
  border-bottom: 1px solid var(--hair);
}

.page-products .pr-check__summary {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 20px 0;
  list-style: none;
  cursor: pointer;
  font-size: clamp(16px, 2vw, 19px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--warm);
  transition: color 180ms var(--ease);
}

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

.page-products .pr-check__summary::marker {
  content: "";
}

.page-products .pr-check__summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--gold);
  transition: transform 180ms var(--ease);
}

.page-products .pr-check__summary:hover {
  color: var(--gold-light);
}

.page-products .pr-check__item[open] .pr-check__summary {
  color: var(--gold-light);
}

.page-products .pr-check__item[open] .pr-check__summary::after {
  transform: rotate(45deg);
}

.page-products .pr-check__body {
  padding: 0 0 22px;
  max-width: 68ch;
}

.page-products .pr-check__body p {
  margin: 0;
  font-size: 14.5px;
  color: var(--warm-72);
}

/* ---------- 服务与响应 ---------- */

.page-products .pr-service {
  padding: var(--pr-pad) 0;
  border-top: 1px solid var(--hair);
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
}

.page-products .pr-service__panel {
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--hair);
  border-top: 3px solid var(--red);
  background: rgba(14, 14, 14, 0.5);
}

.page-products .pr-service__copy p {
  max-width: 66ch;
}

.page-products .pr-service__list {
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hair);
}

.page-products .pr-service__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 20px;
  padding: 15px 0;
  border-bottom: 1px solid var(--hair);
}

.page-products .pr-service__k {
  flex: none;
  min-width: 84px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-products .pr-service__v {
  border: 0;
  background: none;
  padding: 0;
  font-family: var(--font-sans);
  font-size: clamp(15px, 2vw, 17px);
  color: var(--warm);
  text-align: left;
  word-break: break-all;
  transition: color 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-products button.pr-service__v {
  cursor: pointer;
  border-radius: 2px;
}

.page-products button.pr-service__v:hover,
.page-products button.pr-service__v:focus-visible {
  color: var(--gold-light);
  box-shadow: inset 0 -1px 0 0 var(--gold);
  outline: none;
}

.page-products .pr-service__v--mono {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.page-products .pr-service__links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: clamp(24px, 4vw, 36px);
}

/* ---------- 响应式 ---------- */

@media (max-width: 560px) {
  .page-products .pr-hero__title {
    font-size: clamp(34px, 11vw, 46px);
  }

  .page-products .pr-switch__phase {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .page-products .pr-steps__seg {
    stroke-dasharray: 1200 0;
  }

  .page-products .pr-service__row {
    flex-direction: column;
    gap: 6px;
  }
}

@media (min-width: 700px) {
  .page-products .pr-device__compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(24px, 3vw, 40px);
  }
}

@media (min-width: 820px) {
  .page-products .pr-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(268px, 0.9fr);
    align-items: end;
  }

  .page-products .pr-wall__cols {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(24px, 3vw, 44px);
    align-items: start;
  }

  .page-products .pr-wall__col:nth-child(2) {
    margin-top: var(--pr-offset);
  }

  .page-products .pr-wall__col:nth-child(3) {
    margin-top: var(--pr-offset-lg);
  }

  .page-products .pr-steps__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(24px, 4vw, 56px);
  }

  .page-products .pr-steps__seg {
    stroke-dasharray: 1200 0;
  }
}

@media (min-width: 960px) {
  .page-products .pr-switch__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-products .pr-switch__media {
    margin-top: 56px;
  }
}

@media (min-width: 1000px) {
  .page-products .pr-device__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}