.page-products {
  --pr-line: rgba(6, 78, 90, .16);
  --pr-line-soft: rgba(6, 78, 90, .08);
  background: var(--snow-50);
  color: var(--ink-900);
  overflow-x: clip;
}

.page-products .pr-crumb-wrap {
  padding-top: clamp(14px, 2vw, 22px);
}

.page-products .pr-hero,
.page-products .pr-sec {
  padding-block: clamp(36px, 5vw, 76px);
}

/* ---------- 首屏 ---------- */
.page-products .pr-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(125deg, var(--snow-50) 0%, var(--snow-200) 58%, var(--paper) 100%);
  padding-top: clamp(28px, 4vw, 56px);
}

.page-products .pr-hero::before {
  content: "";
  position: absolute;
  top: -32%;
  right: -14%;
  width: 48%;
  height: 170%;
  background: linear-gradient(165deg, rgba(199, 70, 18, .17), rgba(255, 179, 138, 0));
  transform: rotate(13deg);
  pointer-events: none;
}

.page-products .pr-hero .page-shell {
  position: relative;
}

.page-products .pr-hero__intro {
  max-width: 760px;
}

.page-products .pr-hero h1 {
  margin: 10px 0 0;
  font-size: clamp(32px, 6.2vw, 74px);
  line-height: 1.06;
  font-weight: 900;
  letter-spacing: -.03em;
  color: var(--teal-900);
}

.page-products .pr-hero .lede {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.75;
  color: var(--neutral-500);
}

.page-products .pr-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* ---------- 五列设备档案夹 ---------- */
.page-products .pr-folders {
  list-style: none;
  margin: clamp(26px, 4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .pr-folder {
  display: flex;
}

.page-products .pr-folder__link {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 7px;
  width: 100%;
  padding: 22px 18px 18px;
  background: var(--paper);
  border: 1px solid var(--pr-line);
  border-radius: var(--radius-m);
  text-decoration: none;
  box-shadow: var(--shadow-1);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.page-products .pr-folder__link::before {
  content: "";
  position: absolute;
  left: 18px;
  top: -1px;
  width: 44px;
  height: 4px;
  background: linear-gradient(90deg, var(--track-600), var(--track-300));
  border-radius: 0 0 4px 4px;
}

.page-products .pr-folder__link:hover,
.page-products .pr-folder__link:focus-visible {
  transform: translateY(-6px);
  box-shadow: var(--shadow-2);
  border-color: var(--teal-600);
}

.page-products .pr-folder__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--neutral-500);
}

.page-products .pr-folder__name {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--teal-900);
}

.page-products .pr-folder__desc {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--neutral-500);
}

.page-products .pr-folder__tag {
  align-self: flex-start;
  margin-top: auto;
  padding: 3px 11px;
  border: 1px solid var(--track-300);
  border-radius: var(--pill);
  font-size: 12px;
  font-weight: 700;
  color: var(--track-600);
}

/* ---------- 通用章节头 ---------- */
.page-products .pr-head {
  max-width: 720px;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-products .pr-head h2 {
  margin: 8px 0 0;
  font-size: clamp(24px, 3.6vw, 42px);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -.025em;
  color: var(--teal-900);
}

.page-products .pr-sub {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--neutral-500);
}

.page-products .pr-head--split {
  max-width: none;
  display: grid;
  gap: var(--gap);
}

.page-products .pr-head__text {
  max-width: 640px;
}

/* ---------- 产品线总览 ---------- */
.page-products .pr-lineup {
  background: var(--paper);
}

.page-products .pr-lineup__grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  align-items: start;
}

.page-products .pr-lineup__fig {
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--pr-line);
}

.page-products .pr-lineup__fig img,
.page-products .pr-dl__fig img,
.page-products .pr-flow__fig img,
.page-products .pr-legacy__fig img,
.page-products .pr-adapt__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .pr-lines {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .pr-line {
  position: relative;
  padding: 4px 0 4px 18px;
  border-left: 3px solid var(--snow-200);
}

.page-products .pr-line:nth-child(odd) {
  border-left-color: var(--track-300);
}

.page-products .pr-line__dev {
  display: block;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--teal-900);
}

.page-products .pr-line__text {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--neutral-500);
}

/* ---------- 核心功能（深色） ---------- */
.page-products .pr-sec--void {
  background:
    linear-gradient(115deg, var(--void-900) 0%, var(--teal-900) 100%);
  color: var(--snow-50);
}

.page-products .pr-sec--void .pr-head h2 {
  color: var(--snow-50);
}

.page-products .pr-sec--void .pr-sub {
  color: rgba(241, 251, 253, .74);
}

.page-products .pr-sec--void .eyebrow {
  color: var(--track-300);
}

.page-products .pr-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-products .pr-timeline__step {
  position: relative;
  padding: 18px 18px 18px 22px;
  border-radius: var(--radius-m);
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .14);
  transition: transform var(--ease), background var(--ease);
}

.page-products .pr-timeline__step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--track-600), var(--pulse-400));
}

.page-products .pr-timeline__step:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, .1);
}

.page-products .pr-timeline__no {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .12em;
  color: var(--track-300);
}

.page-products .pr-timeline__step h3 {
  margin: 6px 0 8px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--snow-50);
}

.page-products .pr-timeline__step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(241, 251, 253, .76);
}

.page-products .pr-flow__fig {
  margin: clamp(24px, 4vw, 40px) 0 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .16);
}

.page-products .pr-flow__fig .media-frame__caption {
  color: rgba(241, 251, 253, .68);
}

/* ---------- 版本分列 ---------- */
.page-products .pr-dl {
  background: var(--snow-50);
}

.page-products .pr-dl__fig {
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--pr-line);
}

.page-products .pr-dl__body {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
  align-items: start;
}

.page-products .pr-dl__nav {
  padding: 16px 18px;
  background: var(--paper);
  border: 1px solid var(--pr-line);
  border-radius: var(--radius-m);
  box-shadow: var(--shadow-1);
}

.page-products .pr-dl__nav-title {
  margin: 0 0 10px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--neutral-500);
}

.page-products .pr-dl__nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .pr-dl__nav a {
  display: inline-block;
  padding: 6px 14px;
  border-radius: var(--pill);
  border: 1px solid var(--pr-line);
  background: var(--snow-50);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--teal-900);
  text-decoration: none;
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}

.page-products .pr-dl__nav a:hover,
.page-products .pr-dl__nav a:focus-visible {
  background: var(--teal-900);
  border-color: var(--teal-900);
  color: var(--paper);
}

.page-products .pr-dl__cards {
  display: grid;
  gap: 16px;
}

.page-products .pr-dl__card {
  padding: 20px 18px 18px 24px;
  background: var(--paper);
  border-radius: var(--radius-m);
  scroll-margin-top: 120px;
}

.page-products .pr-dl__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-products .pr-dl__head h3 {
  margin: 0;
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--teal-900);
}

.page-products .pr-dl__req {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--neutral-500);
}

.page-products .pr-ver {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  border-top: 1px solid var(--pr-line-soft);
}

.page-products .pr-ver__row {
  display: grid;
  gap: 4px;
  padding: 11px 0;
  border-bottom: 1px solid var(--pr-line-soft);
}

.page-products .pr-ver__kind {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--neutral-500);
}

.page-products .pr-ver__no {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--track-600);
}

.page-products .pr-ver__note {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink-900);
}

.page-products .pr-ver__row--old .pr-ver__note {
  color: var(--neutral-500);
}

.page-products .pr-ver a,
.page-products .pr-dl__foot a,
.page-products .pr-compare__note a {
  color: var(--teal-600);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-products .pr-ver a:hover,
.page-products .pr-dl__foot a:hover,
.page-products .pr-compare__note a:hover {
  color: var(--track-600);
}

.page-products .pr-dl__foot {
  margin: 4px 0 0;
  padding: 14px 16px;
  border-radius: var(--radius-s);
  background: var(--snow-200);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--teal-900);
}

.page-products .pr-dl__foot a {
  color: var(--teal-900);
}

/* ---------- 版本对比表 ---------- */
.page-products .pr-compare {
  background: var(--paper);
}

.page-products .pr-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--pr-line);
  border-radius: var(--radius-m);
  background: var(--paper);
  -webkit-overflow-scrolling: touch;
}

.page-products .pr-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .pr-table th,
.page-products .pr-table td {
  padding: 13px 14px;
  text-align: left;
  border-bottom: 1px solid var(--pr-line-soft);
  white-space: nowrap;
}

.page-products .pr-table thead th {
  background: var(--snow-200);
  color: var(--teal-900);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .04em;
}

.page-products .pr-table tbody th {
  font-weight: 600;
  color: var(--ink-900);
  white-space: normal;
}

.page-products .pr-table tbody tr:nth-child(even) {
  background: rgba(184, 238, 245, .18);
}

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

.page-products .pr-table thead th.is-hl {
  background: var(--track-600);
  color: var(--paper);
}

.page-products .pr-table td.is-hl {
  background: rgba(199, 70, 18, .1);
  color: var(--track-700);
  font-weight: 700;
}

.page-products .pr-yes {
  color: var(--teal-900);
  font-weight: 700;
}

.page-products .pr-no {
  color: var(--neutral-500);
}

.page-products .pr-compare__note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--neutral-500);
}

/* ---------- 旧版本对照（深青） ---------- */
.page-products .pr-sec--deep {
  background: linear-gradient(150deg, var(--teal-900) 0%, #04333C 100%);
  color: var(--snow-50);
}

.page-products .pr-sec--deep .eyebrow {
  color: var(--track-300);
}

.page-products .pr-sec--deep .pr-head h2,
.page-products .pr-legacy__text h2 {
  margin: 8px 0 0;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -.025em;
  color: var(--snow-50);
}

.page-products .pr-sec--deep .pr-sub {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(241, 251, 253, .74);
}

.page-products .pr-legacy__grid {
  display: grid;
  gap: clamp(22px, 3vw, 38px);
  align-items: start;
}

.page-products .pr-legacy__fig {
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .16);
}

.page-products .pr-legacy__fig .media-frame__caption {
  color: rgba(241, 251, 253, .66);
}

.page-products .pr-archive {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .pr-archive li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-s);
  background: rgba(255, 255, 255, .07);
  border-left: 3px solid var(--track-600);
}

.page-products .pr-archive__no {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--pulse-400);
}

.page-products .pr-archive__desc {
  font-size: 13.5px;
  color: rgba(241, 251, 253, .78);
}

.page-products .pr-legacy__hint {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(241, 251, 253, .78);
}

/* ---------- 适配场景与常见问题 ---------- */
.page-products .pr-adapt {
  background: linear-gradient(180deg, var(--snow-200) 0%, var(--snow-50) 68%);
}

.page-products .pr-adapt__fig {
  margin: 0 0 clamp(20px, 3vw, 32px);
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--pr-line);
}

.page-products .pr-faq {
  display: grid;
  gap: 10px;
}

.page-products .pr-faq__item {
  background: var(--paper);
  border: 1px solid var(--pr-line);
  border-radius: var(--radius-m);
  padding: 4px 18px;
  transition: border-color var(--ease), box-shadow var(--ease);
}

.page-products .pr-faq__item[open] {
  border-color: var(--teal-600);
  box-shadow: var(--shadow-1);
}

.page-products .pr-faq__item summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 14px 30px 14px 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--teal-900);
}

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

.page-products .pr-faq__item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--track-600);
}

.page-products .pr-faq__item[open] summary::after {
  content: "−";
}

.page-products .pr-faq__item p {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--neutral-500);
}

/* ---------- 安装流程 ---------- */
.page-products .pr-install {
  position: relative;
  background: var(--paper);
}

.page-products .pr-install::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 10px;
  background: linear-gradient(90deg, var(--track-600), var(--track-300) 55%, var(--pulse-400));
}

.page-products .pr-steps {
  display: grid;
  gap: 8px;
}

.page-products .pr-step {
  border-bottom: 1px solid var(--pr-line);
  padding: 2px 4px;
}

.page-products .pr-step:first-of-type {
  border-top: 1px solid var(--pr-line);
}

.page-products .pr-step summary {
  display: flex;
  align-items: center;
  gap: 14px;
  list-style: none;
  cursor: pointer;
  padding: 16px 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--teal-900);
}

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

.page-products .pr-step summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--track-600);
}

.page-products .pr-step[open] summary::after {
  content: "−";
}

.page-products .pr-step__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--track-600);
}

.page-products .pr-step__body p {
  margin: 0 0 18px;
  padding-left: 46px;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--neutral-500);
}

.page-products .pr-install__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3vw, 34px);
}

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

  .page-products .pr-timeline {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products .pr-ver__row {
    grid-template-columns: 88px 96px 1fr;
    align-items: baseline;
    gap: 12px;
  }

  .page-products .pr-ver__row--old {
    grid-template-columns: 88px 1fr;
  }
}

@media (min-width: 900px) {
  .page-products .pr-lineup__grid {
    grid-template-columns: 1.1fr .9fr;
    gap: clamp(28px, 4vw, 52px);
  }

  .page-products .pr-head--split {
    grid-template-columns: 1.05fr .95fr;
    align-items: center;
  }

  .page-products .pr-flow__fig {
    margin-top: clamp(30px, 4vw, 46px);
  }

  .page-products .pr-legacy__grid {
    grid-template-columns: .92fr 1.08fr;
    gap: clamp(30px, 4vw, 54px);
  }

  .page-products .pr-dl__cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products .pr-dl__foot {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1000px) {
  .page-products .pr-folders {
    grid-template-columns: repeat(5, 1fr);
    align-items: start;
  }

  .page-products .pr-folder:nth-child(even) {
    margin-top: 26px;
  }
}

@media (min-width: 1040px) {
  .page-products .pr-dl__body {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: clamp(24px, 3vw, 40px);
  }

  .page-products .pr-dl__nav {
    position: sticky;
    top: 118px;
  }

  .page-products .pr-dl__nav ul {
    flex-direction: column;
    align-items: stretch;
  }

  .page-products .pr-dl__nav a {
    display: block;
    text-align: center;
  }

  .page-products .pr-timeline {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pr-folder__link,
  .page-products .pr-timeline__step,
  .page-products .pr-faq__item,
  .page-products .pr-dl__nav a {
    transition: none;
  }

  .page-products .pr-folder__link:hover,
  .page-products .pr-timeline__step:hover {
    transform: none;
  }
}