.page-products {
  background: var(--paper);
  color: var(--body);
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  position: relative;
  overflow: hidden;
  background: var(--indigo);
  color: var(--white);
  padding: calc(var(--header-h) + 30px) 0 40px;
  border-bottom: 3px solid var(--gold);
}

.page-products .prod-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.055) 0 1px,
    transparent 1px 64px
  );
  pointer-events: none;
}

.page-products .prod-hero .wrap {
  position: relative;
  z-index: 1;
}

.page-products .prod-hero .crumbs {
  color: rgba(255, 255, 255, 0.66);
  font-size: 13px;
}

.page-products .prod-hero .crumbs a {
  color: var(--gold);
  text-decoration: none;
}

.page-products .prod-hero .crumbs a:hover,
.page-products .prod-hero .crumbs a:focus-visible {
  text-decoration: underline;
}

.page-products .prod-hero .kicker {
  margin-top: 18px;
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.page-products .prod-hero h1 {
  margin: 10px 0 0;
  max-width: 16em;
  font-family: var(--font-serif);
  font-size: clamp(30px, 5.6vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-products .prod-hero .lead {
  margin: 16px 0 0;
  max-width: 46em;
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.82);
}

.page-products .hero-facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
}

.page-products .hero-facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 14px;
  border: 2px solid rgba(255, 255, 255, 0.26);
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
}

.page-products .hero-facts b {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--gold);
}

/* ---------- 版本索引条 ---------- */
.page-products .ver-rail {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  background: var(--paper-2);
  border-bottom: 2px solid var(--ink);
}

.page-products .ver-rail-scroll {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 11px clamp(16px, 4vw, 40px);
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-products .ver-rail-scroll::-webkit-scrollbar {
  display: none;
}

.page-products .ver-chip {
  flex: 0 0 auto;
  scroll-snap-align: start;
  padding: 7px 14px;
  border: 2px solid var(--ink);
  background: var(--white);
  color: var(--ink);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-products .ver-chip:hover,
.page-products .ver-chip:focus-visible {
  border-color: var(--teal-deep);
  color: var(--teal-deep);
}

/* ---------- 通用节奏 ---------- */
.page-products .section {
  padding: 40px 0;
}

.page-products .section-open h2 {
  font-family: var(--font-serif);
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-products .prose {
  margin-top: 16px;
  font-size: 16px;
  line-height: 1.8;
}

/* ---------- 01 版本总览 ---------- */
.page-products .ver-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 24px;
}

.page-products .ver-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px;
  background: var(--white);
  border: 2px solid var(--ink);
  box-shadow: var(--soft);
}

.page-products .ver-card--web {
  background: var(--paper-2);
  border-style: dashed;
  box-shadow: none;
}

.page-products .ver-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-products .ver-os {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--indigo);
}

.page-products .ver-tag {
  padding: 3px 8px;
  border: 1px solid var(--gold-deep);
  color: var(--gold-deep);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.page-products .ver-card h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 21px;
  color: var(--ink);
}

.page-products .ver-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
}

.page-products .ver-need {
  margin-top: auto !important;
  padding-top: 12px;
  border-top: 1px dashed rgba(20, 22, 28, 0.28);
  font-family: var(--font-mono);
  font-size: 13px !important;
  color: var(--teal-deep);
}

/* ---------- 02 桌面端 ---------- */
.page-products .install-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 24px;
}

.page-products .install-col {
  padding: 20px;
  background: var(--white);
  border: 2px solid var(--ink);
  box-shadow: var(--soft);
}

.page-products .os-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-deep);
}

.page-products .install-col h3 {
  margin: 6px 0 14px;
  font-family: var(--font-serif);
  font-size: 21px;
  color: var(--ink);
}

.page-products .install-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .install-steps li {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(20, 22, 28, 0.24);
}

.page-products .install-steps li:last-child {
  border-bottom: 0;
}

.page-products .step-no {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 2px solid var(--teal-deep);
  color: var(--teal-deep);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
}

.page-products .install-steps b {
  display: block;
  margin-bottom: 4px;
  font-size: 15.5px;
  color: var(--ink);
}

.page-products .install-steps p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
}

.page-products .install-note {
  margin: 16px 0 0;
  padding: 12px 14px;
  background: var(--paper-2);
  border-left: 4px solid var(--teal-deep);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-products .prod-figure {
  margin: 28px 0 0;
}

.page-products .figure-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .figure-cap {
  margin-top: 10px;
  font-size: 13.5px;
  color: var(--body);
}

/* ---------- 03 移动端 ---------- */
.page-products .mobile-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 24px;
}

.page-products .mobile-copy h3 {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 21px;
  color: var(--ink);
}

.page-products .mobile-copy h3 + .note-list {
  margin-bottom: 26px;
}

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

.page-products .note-list li {
  padding: 12px 0 12px 16px;
  border-top: 1px dashed rgba(20, 22, 28, 0.22);
  font-size: 15px;
  line-height: 1.72;
  position: relative;
}

.page-products .note-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 6px;
  height: 6px;
  background: var(--teal);
}

.page-products .note-list b {
  display: block;
  margin-bottom: 3px;
  color: var(--ink);
  font-size: 15.5px;
}

.page-products .mobile-figure {
  margin: 0;
  max-width: 420px;
}

/* ---------- 04 网页轻量版 ---------- */
.page-products .web-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 24px;
  padding: 22px;
  background: var(--paper-2);
  border: 2px dashed var(--ink);
}

.page-products .web-lead {
  margin: 0 0 18px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
}

.page-products .web-btn {
  display: inline-block;
  margin-top: 20px;
  text-decoration: none;
}

.page-products .web-figure {
  margin: 0;
}

/* ---------- 05 版本更新 ---------- */
.page-products .rel-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 2px solid var(--ink);
}

.page-products .rel-item {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 2px solid var(--ink);
}

.page-products .rel-ver {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--indigo);
}

.page-products .rel-tag {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--gold-deep);
}

.page-products .rel-body {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
}

.page-products .rel-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin: 22px 0 0;
}

.page-products .copy-btn {
  padding: 9px 16px;
  border: 2px solid var(--ink);
  background: var(--white);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-products .copy-btn:hover,
.page-products .copy-btn:focus-visible {
  border-color: var(--teal-deep);
  color: var(--teal-deep);
}

.page-products .text-link {
  color: var(--teal-deep);
  font-size: 15px;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-products .text-link:hover,
.page-products .text-link:focus-visible {
  color: var(--indigo);
}

/* ---------- 06 索引对照 ---------- */
.page-products .cross-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 24px;
}

.page-products .cross-card {
  padding: 18px;
  background: var(--white);
  border: 2px solid var(--ink);
}

.page-products .cross-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 19px;
  color: var(--indigo);
}

.page-products .cross-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
}

.page-products .cross-tail {
  margin-top: 20px;
  font-size: 15px;
}

.page-products .cross-tail a,
.page-products .faq-tail a {
  color: var(--teal-deep);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-products .cross-tail a:hover,
.page-products .faq-tail a:hover,
.page-products .cross-tail a:focus-visible,
.page-products .faq-tail a:focus-visible {
  color: var(--indigo);
}

/* ---------- 07 系统要求 ---------- */
.page-products .table-scroll {
  margin-top: 24px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-products .req-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  background: var(--white);
  border: 2px solid var(--ink);
  font-size: 15px;
}

.page-products .req-table th,
.page-products .req-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid rgba(20, 22, 28, 0.16);
}

.page-products .req-table thead th {
  background: var(--indigo);
  color: var(--white);
  border-bottom: 2px solid var(--ink);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.page-products .req-table tbody tr:nth-child(even) {
  background: var(--paper-2);
}

.page-products .req-table tbody th {
  color: var(--ink);
  font-weight: 700;
  white-space: nowrap;
}

.page-products .visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.page-products .req-note {
  margin: 18px 0 0;
  padding: 14px 16px;
  background: var(--paper-3);
  border-left: 4px solid var(--gold);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 08 首次查询 ---------- */
.page-products .flow-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 24px;
}

.page-products .flow-steps {
  display: flex;
  flex-direction: column;
}

.page-products .flow-step {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  padding: 16px 0;
  border-top: 2px solid var(--ink);
}

.page-products .flow-no {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  color: var(--gold-deep);
  line-height: 1;
}

.page-products .flow-step b {
  display: block;
  margin-bottom: 5px;
  font-size: 16.5px;
  color: var(--ink);
}

.page-products .flow-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
}

.page-products .flow-figure {
  margin: 0;
}

.page-products .query-modes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 28px;
}

.page-products .mode-card {
  padding: 16px;
  background: var(--white);
  border: 2px solid var(--ink);
  border-top: 6px solid var(--teal);
}

.page-products .mode-key {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--teal-deep);
}

.page-products .mode-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
}

/* ---------- 09 数据缓存 ---------- */
.page-products .cache-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 24px 0 0;
  padding: 0;
  border-top: 2px solid var(--ink);
}

.page-products .cache-list li {
  padding: 18px 0;
  border-bottom: 2px solid var(--ink);
}

.page-products .cache-list b {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--indigo);
}

.page-products .cache-list p {
  margin: 0;
  max-width: 52em;
  font-size: 15px;
  line-height: 1.75;
}

/* ---------- 10 常见问题 ---------- */
.page-products .faq-list {
  margin-top: 22px;
  border-top: 2px solid var(--ink);
}

.page-products .faq-item {
  border-bottom: 2px solid var(--ink);
}

.page-products .faq-item summary {
  position: relative;
  padding: 16px 36px 16px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--ink);
}

.page-products .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-products .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 14px;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--teal-deep);
}

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

.page-products .faq-item summary:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

.page-products .faq-item p {
  margin: 0 0 18px;
  max-width: 46em;
  font-size: 15.5px;
  line-height: 1.78;
}

.page-products .faq-tail {
  margin-top: 22px;
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 收尾行动 ---------- */
.page-products .cta-band {
  background: var(--indigo);
  color: var(--white);
  border-top: 3px solid var(--gold);
  padding: 40px 0;
}

.page-products .cta-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: center;
}

.page-products .cta-kicker {
  margin: 0;
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.page-products .cta-band h2 {
  margin: 8px 0 10px;
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.2;
  color: var(--white);
}

.page-products .cta-band p {
  margin: 0;
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.8);
}

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

.page-products .cta-actions .btn {
  text-decoration: none;
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 620px) {
  .page-products .ver-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .cache-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 28px;
  }

  .page-products .cache-list li:last-child,
  .page-products .cache-list li:nth-last-child(2):nth-child(odd) {
    border-bottom: 2px solid var(--ink);
  }
}

@media (min-width: 760px) {
  .page-products .section {
    padding: 56px 0;
  }

  .page-products .prod-hero {
    padding: calc(var(--header-h) + 46px) 0 56px;
  }

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

  .page-products .rel-item {
    grid-template-columns: 100px 96px 1fr;
    align-items: baseline;
    gap: 20px;
  }

  .page-products .cta-inner {
    grid-template-columns: 1.4fr 1fr;
    gap: 32px;
  }

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

@media (min-width: 1000px) {
  .page-products .section {
    padding: 68px 0;
  }

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

  .page-products .install-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px;
  }

  .page-products .mobile-grid {
    grid-template-columns: 1.25fr 0.75fr;
    gap: 36px;
    align-items: start;
  }

  .page-products .mobile-figure {
    margin-top: 4px;
  }

  .page-products .web-panel {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding: 30px;
    align-items: center;
  }

  .page-products .flow-layout {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
    align-items: start;
  }

  .page-products .cache-list {
    column-gap: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .ver-chip,
  .page-products .copy-btn {
    transition: none;
  }
}