.page-products {
  --pt-copper-line: rgba(176, 122, 43, 0.5);
  --pt-river-wash: rgba(31, 111, 107, 0.08);
  --pt-beacon-wash: rgba(228, 113, 47, 0.12);
  display: block;
  background: var(--paper);
  color: var(--brown);
}

.page-products .breadcrumb {
  padding-top: 22px;
}

/* ---------- 首屏 ---------- */
.page-products .tools-hero {
  padding: clamp(24px, 4vw, 46px) 0 clamp(18px, 3vw, 30px);
}

.page-products .tools-hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-products .tools-hero-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper);
}

.page-products .tools-hero h1 {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(32px, 6.4vw, 66px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 18ch;
}

.page-products .tools-hero-lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.85;
  color: var(--brown);
}

.page-products .tools-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products .tools-hero-aside {
  border: 1px solid var(--line);
  border-top: 3px solid var(--river);
  background: var(--card-bg);
  padding: clamp(18px, 3vw, 26px);
  box-shadow: var(--shadow-soft);
}

.page-products .tools-aside-note {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--taupe);
}

.page-products .tools-jump {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-products .tools-jump a {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 12px;
  padding: 10px 12px;
  border-left: 3px solid var(--sand);
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-left-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-products .tools-jump a:hover,
.page-products .tools-jump a:focus-visible {
  transform: translateX(3px);
  border-left-color: var(--beacon);
  background: var(--pt-river-wash);
}

.page-products .tools-jump a:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}

.page-products .tools-jump-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--copper);
}

.page-products .tools-jump-label {
  font-size: 15px;
  font-weight: 600;
}

.page-products .tools-jump-count {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--taupe);
}

.page-products .tools-aside-week {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--taupe);
}

/* ---------- 各区块公共节奏 ---------- */
.page-products .tools-overview,
.page-products .tools-scenes,
.page-products .tools-diff,
.page-products .tools-switch,
.page-products .tools-legacy,
.page-products .tools-walk,
.page-products .tools-more {
  padding: clamp(40px, 6vw, 76px) 0;
}

.page-products .tools-scenes,
.page-products .tools-legacy {
  background: var(--paper-2);
}

.page-products .section-head {
  margin-bottom: clamp(22px, 3.4vw, 38px);
  max-width: 74ch;
}

/* ---------- 面板概览 ---------- */
.page-products .overview-points {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(24px, 3.6vw, 38px);
}

.page-products .overview-point {
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--river);
  background: var(--card-bg);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-products .overview-point:hover {
  transform: translateY(-3px);
  border-color: var(--copper);
  box-shadow: var(--shadow-soft);
}

.page-products .overview-point-title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: clamp(19px, 2vw, 23px);
  font-weight: 700;
  color: var(--ink);
}

.page-products .overview-point-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--brown);
}

/* ---------- 场景分类 ---------- */
.page-products .scene-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .scene-item {
  position: relative;
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  background: var(--card-bg);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-products .scene-item:hover {
  transform: translateY(-3px);
  border-color: var(--copper);
  box-shadow: var(--shadow-soft);
}

.page-products .scene-item::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: var(--beacon);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

.page-products .scene-item:hover::after {
  opacity: 1;
}

.page-products .scene-num {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--copper);
}

.page-products .scene-title {
  margin: 0 0 4px;
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 700;
  color: var(--ink);
}

.page-products .scene-count {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--river);
}

.page-products .scene-who {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--brown);
}

.page-products .scene-path {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--taupe);
}

.page-products .scene-path-label {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--copper);
}

.page-products .scene-figure {
  margin-top: clamp(26px, 4vw, 44px);
}

/* ---------- 对照速查 ---------- */
.page-products .diff-figure {
  margin-bottom: clamp(22px, 3.4vw, 34px);
}

.page-products .diff-head {
  display: none;
}

.page-products .diff-list {
  border-top: 1px solid var(--line);
}

.page-products .diff-row {
  padding: 16px 0 14px;
  border-bottom: 1px solid var(--line);
}

.page-products .diff-op {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .diff-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--copper);
}

.page-products .diff-cols {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--line);
  background: var(--card-bg);
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .diff-cell {
  padding: 14px 16px;
  transition: background-color var(--dur) var(--ease);
}

.page-products .diff-cell + .diff-cell {
  border-top: 1px solid var(--pt-copper-line);
}

.page-products .diff-tag {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--taupe);
}

.page-products .diff-cell--new .diff-tag {
  color: var(--river);
}

.page-products .diff-cell p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--brown);
}

.page-products .diff-row:hover .diff-cell,
.page-products .diff-row:focus-within .diff-cell {
  background: var(--pt-river-wash);
}

.page-products .diff-row:hover .diff-cols,
.page-products .diff-row:focus-within .diff-cols {
  border-color: var(--copper);
}

.page-products .diff-more {
  margin-top: 8px;
}

.page-products .diff-more summary {
  display: inline-block;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--river);
  padding: 3px 2px;
  transition: color var(--dur) var(--ease);
}

.page-products .diff-more summary:hover {
  color: var(--beacon);
}

.page-products .diff-more summary:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}

.page-products .diff-more p {
  margin: 8px 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--copper);
  background: var(--pt-beacon-wash);
  font-size: 14px;
  line-height: 1.72;
  color: var(--brown);
}

/* ---------- 切换路径 ---------- */
.page-products .switch-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .switch-card {
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  background: var(--card-bg);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-products .switch-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.page-products .switch-card--keep {
  border-top: 3px solid var(--river);
}

.page-products .switch-card--redo {
  border-top: 3px solid var(--copper);
}

.page-products .switch-card--who {
  border-top: 3px solid var(--ink);
}

.page-products .switch-card-tag {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--taupe);
}

.page-products .switch-card-title {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-size: clamp(19px, 2.1vw, 23px);
  font-weight: 700;
  color: var(--ink);
}

.page-products .switch-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-products .switch-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--brown);
}

.page-products .switch-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 9px;
  height: 1px;
  background: var(--copper);
}

.page-products .switch-card-text {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--brown);
}

.page-products .switch-card-text:last-child {
  margin-bottom: 0;
}

/* ---------- 旧版工具保留说明 ---------- */
.page-products .legacy-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-products .legacy-copy .section-head {
  margin-bottom: 20px;
}

.page-products .legacy-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .legacy-points li {
  padding: 14px 16px;
  border-left: 3px solid var(--river);
  background: var(--card-bg);
  font-size: 15px;
  line-height: 1.78;
  color: var(--brown);
}

.page-products .legacy-points strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--copper);
}

.page-products .legacy-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 22px 0 0;
}

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

/* ---------- 操作路径演练 ---------- */
.page-products .walk-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .walk-card {
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--river);
  background: var(--card-bg);
  transition: transform var(--dur) var(--ease), border-left-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-products .walk-card:hover {
  transform: translateY(-3px);
  border-left-color: var(--beacon);
  box-shadow: var(--shadow-soft);
}

.page-products .walk-num {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--copper);
}

.page-products .walk-title {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-size: clamp(19px, 2.1vw, 23px);
  font-weight: 700;
  color: var(--ink);
}

.page-products .walk-steps {
  margin: 0;
  padding: 0 0 0 22px;
  display: grid;
  gap: 10px;
  counter-reset: walk;
  list-style: none;
}

.page-products .walk-steps li {
  position: relative;
  font-size: 15px;
  line-height: 1.75;
  color: var(--brown);
  counter-increment: walk;
}

.page-products .walk-steps li::before {
  content: counter(walk, decimal-leading-zero);
  position: absolute;
  left: -22px;
  top: 0.2em;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--copper);
}

.page-products .walk-note {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--taupe);
}

.page-products .walk-figure {
  margin-top: clamp(24px, 3.6vw, 40px);
}

/* ---------- 后续入口 ---------- */
.page-products .tools-more .river-rule {
  margin-bottom: clamp(26px, 4vw, 40px);
}

.page-products .more-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-products .more-card {
  display: block;
  padding: 20px;
  border: 1px solid var(--line);
  background: var(--card-bg);
  color: var(--brown);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-products .more-card:hover,
.page-products .more-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--copper);
  background: var(--paper-2);
}

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

.page-products .more-idx {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--copper);
}

.page-products .more-title {
  display: block;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink);
}

.page-products .media-frame img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .overview-points,
  .page-products .more-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .switch-card--who {
    grid-column: 1 / -1;
  }

  .page-products .diff-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 0;
    padding: 0 0 8px;
    border-bottom: 2px solid var(--ink);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--taupe);
  }

  .page-products .diff-head-op {
    grid-column: 1 / -1;
    margin-bottom: 6px;
  }

  .page-products .diff-head-cell {
    padding-left: 16px;
  }
}

@media (min-width: 880px) {
  .page-products .tools-hero-inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .scene-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 30px;
  }

  .page-products .scene-item:nth-child(2),
  .page-products .scene-item:nth-child(4) {
    margin-top: 30px;
  }

  .page-products .scene-item:nth-child(5) {
    grid-column: 1 / -1;
  }

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

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

  .page-products .walk-card:nth-child(2) {
    margin-top: 26px;
  }

  .page-products .diff-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .diff-cell + .diff-cell {
    border-top: 0;
    border-left: 1px solid var(--pt-copper-line);
  }

  .page-products .legacy-inner {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  }

  .page-products .more-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-products .scene-item:nth-child(3) {
    margin-top: 16px;
  }

  .page-products .tools-hero h1 {
    max-width: 16ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .tools-jump a,
  .page-products .overview-point,
  .page-products .scene-item,
  .page-products .scene-item::after,
  .page-products .switch-card,
  .page-products .walk-card,
  .page-products .more-card,
  .page-products .diff-cell,
  .page-products .diff-cols {
    transition: none;
  }

  .page-products .tools-jump a:hover,
  .page-products .overview-point:hover,
  .page-products .scene-item:hover,
  .page-products .switch-card:hover,
  .page-products .walk-card:hover,
  .page-products .more-card:hover {
    transform: none;
  }
}