.page-products {
  --tools-rail-w: 224px;
  --tools-anchor-offset: 108px;
  --tools-inner-line: 1px solid var(--c-line);
}

.page-products .breadcrumb {
  padding-top: clamp(18px, 3vw, 30px);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
}

.page-products .breadcrumb__link {
  color: var(--c-mist);
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.page-products .breadcrumb__link:hover,
.page-products .breadcrumb__link:focus-visible {
  color: var(--c-gold);
}

.page-products .breadcrumb__sep {
  color: var(--c-line);
}

/* ---------- 首屏 ---------- */

.page-products .tools-hero {
  position: relative;
  padding: clamp(30px, 6vw, 74px) 0 clamp(26px, 4vw, 46px);
  border-bottom: var(--tools-inner-line);
}

.page-products .tools-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  width: clamp(80px, 22vw, 280px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-gold-deep));
}

.page-products .tools-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.22em;
  color: var(--c-neon);
  text-transform: uppercase;
}

.page-products .tools-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 6.2vw, 74px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--c-frost);
}

.page-products .tools-hero__lede {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  max-width: 40em;
  font-size: var(--step-body);
  line-height: 1.85;
  color: var(--c-mist);
}

.page-products .tools-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(18px, 2.6vw, 28px);
}

/* ---------- 主体两栏 ---------- */

.page-products .tools-layout {
  display: grid;
  gap: clamp(26px, 4vw, 56px);
  padding: clamp(30px, 5vw, 58px) 0 clamp(52px, 8vw, 100px);
}

@media (min-width: 940px) {
  .page-products .tools-layout {
    grid-template-columns: var(--tools-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .tools-rail {
    position: sticky;
    top: var(--tools-anchor-offset);
  }
}

/* ---------- 索引侧栏 ---------- */

.page-products .tools-rail {
  display: grid;
  gap: 22px;
  align-content: start;
  padding-bottom: 6px;
}

.page-products .tools-rail__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--c-mist);
  text-transform: uppercase;
}

.page-products .tools-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  border-top: var(--tools-inner-line);
}

.page-products .tools-rail__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 10px 11px 0;
  border-bottom: var(--tools-inner-line);
  font-size: 14.5px;
  color: var(--c-frost);
  text-decoration: none;
  transition: color 0.25s var(--ease), transform 0.3s var(--ease), background-color 0.3s var(--ease);
}

.page-products .tools-rail__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-mist);
  letter-spacing: 0.06em;
}

.page-products .tools-rail__link:hover,
.page-products .tools-rail__link:focus-visible {
  color: var(--c-gold);
  transform: translateX(3px);
  background: linear-gradient(90deg, rgba(240, 166, 60, 0.1), transparent 70%);
}

.page-products .tools-rail__note {
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--c-ink-light);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--c-mist);
}

.page-products .legend {
  padding: 16px 16px 14px;
  border: var(--tools-inner-line);
  border-radius: var(--radius-s);
  background: linear-gradient(160deg, rgba(14, 59, 51, 0.55), rgba(11, 18, 32, 0.2));
}

.page-products .legend__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-mist);
}

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

.page-products .legend__item {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13.5px;
  color: var(--c-frost);
}

.page-products .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex: none;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.03);
}

.page-products .dot--neon { background: var(--c-neon); }
.page-products .dot--gold { background: var(--c-gold); }
.page-products .dot--mist { background: var(--c-mist); }
.page-products .dot--alert { background: var(--c-alert); }

/* ---------- 模块通用 ---------- */

.page-products .tools-detail {
  min-width: 0;
}

.page-products .tool-block {
  padding-block: clamp(30px, 5vw, 58px);
  border-top: var(--tools-inner-line);
  scroll-margin-top: var(--tools-anchor-offset);
}

.page-products .tool-block:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .tool-block--last {
  padding-bottom: clamp(40px, 6vw, 76px);
}

.page-products .tool-block:target .section-title {
  color: var(--c-gold);
}

.page-products .tool-block:target .tool-block__index .num {
  text-shadow: 0 0 32px rgba(240, 166, 60, 0.4);
}

.page-products .tool-block__head {
  display: grid;
  gap: 16px;
  margin-bottom: clamp(20px, 3.2vw, 34px);
}

@media (min-width: 700px) {
  .page-products .tool-block__head {
    grid-template-columns: minmax(120px, 184px) minmax(0, 1fr);
    gap: clamp(22px, 3vw, 40px);
    align-items: start;
  }
}

.page-products .tool-block__index {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}

.page-products .tool-block__index .num {
  font-family: var(--font-mono);
  font-size: clamp(42px, 6vw, 66px);
  line-height: 0.86;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--c-gold);
  overflow-wrap: anywhere;
}

.page-products .tool-block__index-unit {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-mist);
}

.page-products .section-index {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.2em;
  color: var(--c-neon);
}

.page-products .section-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(23px, 3.2vw, 36px);
  line-height: 1.24;
  color: var(--c-frost);
  transition: color 0.3s var(--ease);
}

.page-products .prose {
  margin: 0;
  max-width: 38em;
  font-size: var(--step-body);
  line-height: 1.82;
  color: var(--c-mist);
}

.page-products .tool-block__body {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

@media (min-width: 860px) {
  .page-products .tool-block__body--split {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .tool-block__body--reverse {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
  }
}

.page-products .tool-block__col {
  min-width: 0;
}

.page-products .tool-block__media {
  margin: 0;
}

.page-products .tool-block__media + .tool-block__col,
.page-products .tool-block__col + .tool-block__media {
  align-self: start;
}

/* ---------- 事实列表 ---------- */

.page-products .fact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--tools-inner-line);
}

.page-products .fact-list__item {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-bottom: var(--tools-inner-line);
}

@media (min-width: 560px) {
  .page-products .fact-list__item {
    grid-template-columns: 100px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

.page-products .fact-list__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-neon);
}

.page-products .fact-list__val {
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--c-frost);
}

/* ---------- 可展开详情 ---------- */

.page-products .fold {
  margin-top: 18px;
  border: var(--tools-inner-line);
  border-radius: var(--radius-s);
  background: linear-gradient(165deg, rgba(14, 59, 51, 0.5), rgba(11, 18, 32, 0.35));
  transition: background-color 0.35s var(--ease), background 0.35s var(--ease);
}

.page-products .fold[open] {
  background: linear-gradient(165deg, rgba(20, 86, 74, 0.68), rgba(11, 18, 32, 0.5));
}

.page-products .fold__summary {
  cursor: pointer;
  list-style: none;
  padding: 14px 18px;
  font-size: 14.5px;
  letter-spacing: 0.03em;
  color: var(--c-gold);
}

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

.page-products .fold__summary::before {
  content: "+";
  display: inline-block;
  width: 16px;
  margin-right: 8px;
  font-family: var(--font-mono);
  color: var(--c-neon);
}

.page-products .fold[open] .fold__summary::before {
  content: "–";
}

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

.page-products .fold__body {
  padding: 0 18px 18px;
}

.page-products .fold__body p {
  margin: 0;
  max-width: 38em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-frost);
}

/* ---------- 路径对照 ---------- */

.page-products .path-compare {
  display: grid;
  gap: 1px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  border: var(--tools-inner-line);
  border-radius: var(--radius-m);
  background: var(--c-line);
  overflow: hidden;
}

@media (min-width: 720px) {
  .page-products .path-compare {
    grid-template-columns: 1fr 1fr;
  }
}

.page-products .path-compare__col {
  padding: 22px 22px 20px;
  background: var(--c-midnight);
}

.page-products .path-compare__col--new {
  background: linear-gradient(150deg, rgba(14, 59, 51, 0.92), rgba(11, 18, 32, 0.96));
}

.page-products .path-compare__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-mist);
}

.page-products .path-compare__col--new .path-compare__title {
  color: var(--c-neon);
}

.page-products .path-compare__path {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.9;
  color: var(--c-mist);
  overflow-wrap: anywhere;
}

.page-products .path-compare__col--old .path-compare__path {
  color: rgba(147, 166, 180, 0.7);
  text-decoration: line-through;
  text-decoration-color: rgba(226, 96, 63, 0.8);
  text-decoration-thickness: 1px;
}

.page-products .path-compare__col--new .path-compare__path {
  color: var(--c-frost);
}

.page-products .path-compare__col--new .path-compare__path::before {
  content: "→ ";
  color: var(--c-neon);
  text-decoration: none;
}

.page-products .path-compare__note {
  margin: 12px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-mist);
}

/* ---------- 步骤列表 ---------- */

.page-products .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: var(--tools-inner-line);
}

.page-products .step-list__item {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 13px 0;
  border-bottom: var(--tools-inner-line);
}

.page-products .step-list__no {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--c-gold);
}

.page-products .step-list__text {
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--c-frost);
}

.page-products .step-list--wide {
  margin-top: clamp(22px, 3vw, 34px);
}

@media (min-width: 820px) {
  .page-products .step-list--wide {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 26px;
    border-top: 0;
  }

  .page-products .step-list--wide .step-list__item {
    border-top: var(--tools-inner-line);
  }
}

/* ---------- 文本内链 ---------- */

.page-products .inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 20px 0 0;
}

.page-products .inline-links--tail {
  margin-top: clamp(26px, 4vw, 40px);
  padding-top: 20px;
  border-top: var(--tools-inner-line);
}

.page-products .link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--c-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(240, 166, 60, 0.35);
  padding-bottom: 2px;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.page-products .link-arrow::after {
  content: "↗";
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-products .link-arrow:hover,
.page-products .link-arrow:focus-visible {
  color: var(--c-neon);
  border-bottom-color: var(--c-neon);
}

/* ---------- 对照表格 ---------- */

.page-products .table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: var(--tools-inner-line);
  border-radius: var(--radius-s);
}

.page-products .spec-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .spec-table__caption {
  caption-side: top;
  padding: 12px 14px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-mist);
  background: rgba(199, 123, 34, 0.12);
}

.page-products .spec-table th,
.page-products .spec-table td {
  text-align: left;
  padding: 13px 14px;
  border-bottom: 1px solid rgba(31, 58, 92, 0.7);
  vertical-align: top;
  line-height: 1.7;
}

.page-products .spec-table thead th {
  background: rgba(199, 123, 34, 0.16);
  border-bottom: 1px solid rgba(199, 123, 34, 0.55);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: var(--c-gold);
  white-space: nowrap;
}

.page-products .spec-table tbody th {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  font-weight: 400;
  color: var(--c-mist);
  white-space: nowrap;
}

.page-products .spec-table td {
  color: var(--c-frost);
}

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

/* ---------- 双入口 ---------- */

.page-products .entry-split {
  display: grid;
  gap: 1px;
  margin-bottom: clamp(26px, 4vw, 44px);
  background: var(--c-line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

@media (min-width: 760px) {
  .page-products .entry-split {
    grid-template-columns: 1fr 1fr;
  }
}

.page-products .entry-card {
  padding: clamp(22px, 3vw, 32px);
  background: var(--c-midnight);
  transition: background-color 0.35s var(--ease);
}

.page-products .entry-card--alt {
  background: linear-gradient(155deg, rgba(14, 59, 51, 0.85), rgba(11, 18, 32, 0.95));
}

.page-products .entry-card:hover {
  background: linear-gradient(155deg, rgba(20, 86, 74, 0.55), rgba(11, 18, 32, 0.9));
}

.page-products .entry-card__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-neon);
}

.page-products .entry-card__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.35;
  color: var(--c-frost);
}

.page-products .entry-card__text {
  margin: 0 0 16px;
  max-width: 34em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-mist);
}

.page-products .entry-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
  border-top: 1px solid rgba(31, 58, 92, 0.75);
  padding-top: 14px;
}

.page-products .entry-card__li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-frost);
}

.page-products .entry-card__li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-gold);
}

.page-products .entry-card--alt .entry-card__li::before {
  background: var(--c-neon);
}

/* ---------- 版本清单 ---------- */

.page-products .version-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--tools-inner-line);
}

.page-products .version-list__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding: 17px 0;
  border-bottom: var(--tools-inner-line);
  transition: background-color 0.3s var(--ease), transform 0.3s var(--ease);
}

@media (min-width: 640px) {
  .page-products .version-list__item {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 20px;
    padding: 19px 8px 19px 4px;
  }
}

.page-products .version-list__item:hover {
  background: linear-gradient(90deg, rgba(20, 86, 74, 0.4), transparent 82%);
  transform: translateY(-2px);
}

.page-products .version-list__no {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
  color: var(--c-gold);
}

.page-products .version-list__text {
  min-width: 0;
}

.page-products .version-list__title {
  margin: 0 0 7px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--c-frost);
}

.page-products .version-list__desc {
  margin: 0;
  max-width: 42em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-mist);
}

/* ---------- 收尾条 ---------- */

.page-products .closing-strip {
  display: grid;
  gap: 20px;
  margin-top: clamp(28px, 4vw, 44px);
  padding: clamp(22px, 3.4vw, 36px);
  border: 1px solid rgba(240, 166, 60, 0.32);
  border-radius: var(--radius-m);
  background:
    radial-gradient(120% 160% at 100% 0%, rgba(255, 217, 160, 0.12), transparent 58%),
    linear-gradient(150deg, rgba(14, 59, 51, 0.9), rgba(11, 18, 32, 0.95));
}

@media (min-width: 760px) {
  .page-products .closing-strip {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

.page-products .closing-strip__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.2vw, 25px);
  line-height: 1.4;
  color: var(--c-frost);
}

.page-products .closing-strip__desc {
  margin: 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-mist);
}

.page-products .closing-strip__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 媒体占位 ---------- */

.page-products .media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-s);
}

.page-products .media--banner img {
  aspect-ratio: 16 / 7;
}

.page-products .media--wide img {
  aspect-ratio: 14 / 9;
}

.page-products .media--standard img {
  aspect-ratio: 4 / 3;
}

@media (max-width: 599px) {
  .page-products .tools-hero__title br {
    display: none;
  }

  .page-products .tool-block__index .num {
    font-size: clamp(38px, 11vw, 52px);
  }

  .page-products .tools-rail {
    border-bottom: var(--tools-inner-line);
    padding-bottom: 22px;
  }

  .page-products .closing-strip__actions .btn {
    flex: 1 1 auto;
    justify-content: center;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .tools-rail__link,
  .page-products .version-list__item,
  .page-products .entry-card,
  .page-products .fold {
    transition: none;
    transform: none;
  }

  .page-products .tools-rail__link:hover,
  .page-products .tools-rail__link:focus-visible,
  .page-products .version-list__item:hover {
    transform: none;
  }
}