.page-products {
  --pk-glow: 0 0 0 1px rgba(44, 232, 216, 0.32), 0 12px 34px rgba(44, 232, 216, 0.1);
  --pk-soft: 0 14px 38px rgba(0, 0, 0, 0.42);
}

/* ---------- 面包屑 ---------- */
.page-products .crumbs-row {
  padding-top: clamp(14px, 2.5vw, 26px);
}

.page-products .crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-products .crumbs a {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1px;
}

.page-products .crumbs a:hover,
.page-products .crumbs a:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-products .crumbs span[aria-current="page"] {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-products .tools-hero {
  position: relative;
  width: min(var(--wrap), calc(100% - var(--gutter) * 2));
  margin: clamp(18px, 3vw, 34px) auto 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    radial-gradient(130% 120% at 88% -12%, rgba(44, 232, 216, 0.18), transparent 55%),
    radial-gradient(90% 90% at 0% 108%, rgba(123, 77, 255, 0.24), transparent 62%),
    linear-gradient(155deg, var(--indigo) 0%, var(--void) 72%);
}

.page-products .tools-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: clamp(120px, 26vw, 320px);
  height: clamp(120px, 26vw, 320px);
  background: repeating-linear-gradient(90deg, rgba(44, 232, 216, 0.16) 0 1px, transparent 1px 12px);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-products .tools-hero .frame-inner {
  position: relative;
  z-index: 1;
  padding: clamp(26px, 4.6vw, 62px);
}

.page-products .tools-hero-grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-products .tools-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products .tools-eyebrow::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(90deg, rgba(44, 232, 216, 0.55), transparent);
}

.page-products .tools-hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 70px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 15ch;
}

.page-products .tools-hero .lead {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17.5px);
  line-height: 1.82;
  color: var(--slate);
}

.page-products .tools-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

/* ---------- 首屏数据块 ---------- */
.page-products .tool-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .tool-stat {
  padding: 16px 18px;
  background: rgba(7, 14, 36, 0.76);
}

.page-products .tool-stat b {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4vw, 38px);
  line-height: 1;
  color: var(--cyan);
}

.page-products .tool-stat span {
  display: block;
  margin-top: 9px;
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.05em;
  color: var(--slate);
}

/* ---------- 章节通用 ---------- */
.page-products .chapter-head {
  margin-bottom: clamp(24px, 3.6vw, 44px);
}

.page-products .chapter-title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 4.2vw, 42px);
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--paper);
  max-width: 30ch;
}

.page-products .chapter-sub {
  margin: 14px 0 0;
  max-width: 68ch;
  font-size: clamp(14.5px, 1.5vw, 16.5px);
  line-height: 1.8;
  color: var(--slate);
}

.page-products .chapter-num {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--violet);
}

/* ---------- 斜切分隔带 ---------- */
.page-products .slant-band {
  height: clamp(38px, 6vw, 74px);
  margin: clamp(30px, 5vw, 62px) 0 0;
  background: linear-gradient(180deg, rgba(123, 77, 255, 0.24), rgba(44, 232, 216, 0.06));
  clip-path: polygon(0 0, 100% 40%, 100% 100%, 0 60%);
}

/* ---------- 技能树 ---------- */
.page-products .tool-tree {
  display: grid;
  gap: 10px;
}

.page-products .tool-node {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(16, 26, 68, 0.85) 0%, rgba(7, 14, 36, 0.92) 100%);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-products .tool-node[data-open] {
  border-color: rgba(44, 232, 216, 0.5);
  box-shadow: var(--pk-glow);
}

.page-products .tool-head {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 16px clamp(14px, 2.6vw, 24px);
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-products .tool-head:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-products .tool-head::after {
  content: "+";
  flex: 0 0 auto;
  width: 20px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--slate);
}

.page-products .tool-node[data-open] .tool-head::after {
  content: "–";
  color: var(--cyan);
}

.page-products .tool-index {
  flex: 0 0 auto;
  padding: 4px 8px;
  border: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--violet);
}

.page-products .tool-node[data-open] .tool-index {
  color: var(--cyan);
  border-color: rgba(44, 232, 216, 0.46);
}

.page-products .tool-name {
  flex: 1 1 auto;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(16px, 2vw, 20px);
  color: var(--paper);
}

.page-products .tool-hint {
  display: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--slate);
}

.page-products .tool-panel-inner {
  display: grid;
  gap: 16px;
  padding: 0 clamp(14px, 2.6vw, 24px) 22px;
}

.page-products .tool-panel-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--slate);
}

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

.page-products .tool-points li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
  opacity: 0.86;
}

.page-products .tool-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--violet);
  transform: rotate(45deg);
}

/* ---------- 左文右图 / 右文左图 ---------- */
.page-products .split {
  display: grid;
  gap: clamp(22px, 3.4vw, 42px);
}

.page-products .split-main p,
.page-products .split-side p {
  margin: 0 0 14px;
  font-size: clamp(14.5px, 1.5vw, 16.5px);
  line-height: 1.82;
  color: var(--slate);
}

.page-products .split-main p:last-child,
.page-products .split-side p:last-child {
  margin-bottom: 0;
}

.page-products .media-caption {
  margin: 10px 0 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mute);
}

.page-products .inline-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 232, 216, 0.45);
  padding-bottom: 1px;
}

.page-products .inline-link:hover,
.page-products .inline-link:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 参数表 ---------- */
.page-products .spec-wrap {
  margin-top: clamp(26px, 4vw, 48px);
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--paper);
}

.page-products .spec-wrap .paper-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
}

.page-products .spec-wrap .paper-table th,
.page-products .spec-wrap .paper-table td {
  padding: 11px 16px;
  border-bottom: 1px solid rgba(27, 20, 16, 0.16);
  text-align: left;
  font-size: 14px;
  line-height: 1.5;
  color: var(--brown);
}

.page-products .spec-wrap .paper-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: #6d5f4c;
  border-bottom: 1px solid rgba(27, 20, 16, 0.38);
}

.page-products .spec-wrap .paper-table tbody th {
  font-weight: 700;
  white-space: nowrap;
}

.page-products .spec-wrap .paper-table td.is-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  text-align: right;
  font-weight: 700;
  white-space: nowrap;
}

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

/* ---------- 步骤条 ---------- */
.page-products .step-rail {
  margin: 0 0 20px;
  padding: 0 0 0 6px;
  list-style: none;
  display: grid;
  border-left: 1px solid var(--line);
}

.page-products .step-rail li {
  position: relative;
  padding: 2px 0 26px 26px;
}

.page-products .step-rail li:last-child {
  padding-bottom: 0;
}

.page-products .step-rail li::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 7px;
  width: 10px;
  height: 10px;
  background: var(--void);
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
}

.page-products .step-num {
  display: block;
  margin-bottom: 7px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--violet);
}

.page-products .step-title {
  display: block;
  margin-bottom: 7px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(16px, 2vw, 19px);
  color: var(--paper);
}

.page-products .step-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--slate);
}

.page-products .note-line {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--orange);
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 资料库舞台 ---------- */
.page-products .archive-stage {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
}

.page-products .archive-bg {
  position: absolute;
  inset: 0;
  opacity: 0.22;
  pointer-events: none;
}

.page-products .archive-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .archive-content {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  padding: clamp(22px, 4vw, 52px);
  background: linear-gradient(180deg, rgba(7, 14, 36, 0.78) 0%, rgba(7, 14, 36, 0.94) 100%);
}

.page-products .filter-label {
  display: block;
  margin-bottom: 12px;
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--slate);
}

.page-products .filter-note {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--slate);
}

.page-products .archive-facts {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .fact {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 16px 18px;
  background: rgba(16, 26, 68, 0.7);
}

.page-products .fact-num {
  flex: 0 0 auto;
  min-width: 4.5ch;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  color: var(--cyan);
}

.page-products .fact-label {
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .archive-text {
  margin: 0;
  max-width: 72ch;
  font-size: clamp(14.5px, 1.5vw, 16.5px);
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.9;
}

/* ---------- 折叠字段清单 ---------- */
.page-products .field-collapse {
  margin-top: 26px;
  border: 1px solid var(--line);
  background: rgba(16, 26, 68, 0.5);
}

.page-products .field-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 16px clamp(14px, 2.6vw, 22px);
  border: 0;
  background: none;
  color: var(--paper);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 16px;
  text-align: left;
  cursor: pointer;
}

.page-products .field-trigger:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-products .field-caret {
  color: var(--cyan);
  font-size: 16px;
}

.page-products .field-collapse[data-open] .field-caret {
  transform: rotate(45deg);
}

.page-products .field-panel {
  padding: 0 clamp(14px, 2.6vw, 22px) 20px;
}

.page-products .field-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .field-list li {
  padding: 11px 14px;
  background: var(--void);
}

.page-products .field-list .mono-text {
  font-size: 13px;
  color: var(--slate);
}

.page-products .field-note {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mute);
}

/* ---------- 场景组合 ---------- */
.page-products .scene-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .scene-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(18px, 3vw, 28px);
  background: var(--void);
}

.page-products .scene-tag {
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--orange);
}

.page-products .scene-card h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(18px, 2.2vw, 21px);
  color: var(--paper);
}

.page-products .scene-steps {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 7px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .scene-steps li::marker {
  font-family: var(--font-mono);
  color: var(--violet);
}

/* ---------- 入口 ---------- */
.page-products .gate-grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .gate {
  display: block;
  padding: 22px clamp(16px, 2.6vw, 26px);
  background: var(--void);
  text-decoration: none;
  color: inherit;
  transition: background 0.2s ease;
}

.page-products .gate:hover,
.page-products .gate:focus-visible {
  background: var(--indigo);
}

.page-products .gate-label {
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-products .gate-title {
  display: block;
  margin-top: 10px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(17px, 2.1vw, 19px);
  color: var(--paper);
}

.page-products .gate-text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .closing-line {
  margin-top: clamp(24px, 3.6vw, 40px);
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-products .closing-line p {
  margin: 0;
  max-width: 74ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--slate);
}

/* ---------- 图片容器兜底 ---------- */
.page-products img {
  max-width: 100%;
  height: auto;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 640px) {
  .page-products .tool-panel-inner {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  }

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

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

  .page-products .fact {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}

@media (min-width: 760px) {
  .page-products .tool-hint {
    display: block;
  }
}

@media (min-width: 900px) {
  .page-products .tools-hero-grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-products .split {
    grid-template-columns: minmax(0, 4fr) minmax(0, 6fr);
    align-items: start;
  }

  .page-products .split--reverse {
    grid-template-columns: minmax(0, 6fr) minmax(0, 4fr);
  }

  .page-products .split--reverse .split-side {
    order: 1;
  }

  .page-products .split--reverse .split-main {
    order: 2;
  }

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

  .page-products .archive-content {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-products .archive-facts {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .archive-text {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1120px) {
  .page-products .archive-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .fact {
    flex-direction: row;
    align-items: baseline;
    gap: 14px;
  }
}