/* ===== 页面作用域基础变量 ===== */
.page-products {
  --pp-gap: clamp(38px, 6vw, 92px);
  --pp-radius: var(--radius-m);
  --pp-soft: rgba(169, 189, 212, 0.08);
}

/* ===== 面包屑 ===== */
.page-products .breadcrumb {
  margin: 0 0 clamp(16px, 3vw, 30px);
}
.page-products .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--steel-500);
}
.page-products .breadcrumb-item {
  display: inline-flex;
  align-items: center;
}
.page-products .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin: 0 10px;
  color: var(--ink-700);
}
.page-products .breadcrumb-item a {
  color: var(--mist-200);
  text-decoration: none;
  transition: color var(--t) var(--ease);
}
.page-products .breadcrumb-item a:hover,
.page-products .breadcrumb-item a:focus-visible {
  color: var(--neon);
}
.page-products .breadcrumb-item[aria-current] {
  color: var(--neon);
}

/* ===== 页首 ===== */
.page-products .page-head {
  padding-bottom: clamp(30px, 4.5vw, 56px);
}
.page-products .eyebrow {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--neon);
}
.page-products .page-title {
  margin: 0 0 18px;
  max-width: 17em;
  font-size: clamp(30px, 5.2vw, 62px);
  font-weight: 250;
  line-height: 1.06;
  letter-spacing: -0.025em;
  color: var(--cold-white);
}
.page-products .page-lede {
  margin: 0;
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.68;
  color: var(--mist-200);
}
.page-products .topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}
.page-products .topic-tags .tag {
  display: inline-block;
  padding: 5px 11px;
  border: 1px solid var(--hair-strong);
  border-radius: var(--radius-pill);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--mist-200);
}
.page-products .topic-tags .tag-neon {
  border-color: rgba(75, 255, 158, 0.5);
  color: var(--neon);
}

/* ===== 两栏骨架 ===== */
.page-products .shell-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding-bottom: clamp(44px, 7vw, 104px);
}
.page-products .rail {
  min-width: 0;
}
.page-products .content {
  display: grid;
  gap: var(--pp-gap);
  min-width: 0;
}
.page-products .section {
  min-width: 0;
}

@media (min-width: 1000px) {
  .page-products .shell-split {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 76px);
    align-items: start;
  }
  .page-products .rail {
    position: sticky;
    top: calc(var(--header-h) + 18px);
    max-height: calc(100vh - var(--header-h) - 36px);
    overflow-y: auto;
    padding-right: 8px;
  }
}

/* ===== 左侧索引栏 ===== */
.page-products .rail-title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--steel-500);
}
.page-products .rail-rounds {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-products .rail-rounds .filter-chip,
.page-products .chip-set .filter-chip {
  padding: 6px 12px;
  border: 1px solid var(--hair-strong);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--mist-200);
  font-family: inherit;
  font-size: 12px;
  line-height: 1.4;
  cursor: pointer;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease), background var(--t) var(--ease);
}
.page-products .rail-rounds .filter-chip:hover,
.page-products .chip-set .filter-chip:hover {
  color: var(--cold-white);
  border-color: var(--steel-500);
}
.page-products .rail-rounds .filter-chip[aria-pressed="true"],
.page-products .chip-set .filter-chip[aria-pressed="true"] {
  color: var(--ink-900);
  background: var(--neon);
  border-color: var(--neon);
}
.page-products .rail-rounds .filter-chip:focus-visible,
.page-products .chip-set .filter-chip:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}
.page-products .rail-meta {
  margin: 14px 0 0;
  font-size: 11.5px;
  line-height: 1.65;
  color: var(--steel-500);
}
.page-products .rail-nav {
  display: grid;
  gap: 2px;
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--hair);
}
.page-products .rail-link {
  position: relative;
  display: block;
  padding: 7px 0 7px 14px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist-200);
  text-decoration: none;
  transition: color var(--t) var(--ease), padding-left var(--t) var(--ease);
}
.page-products .rail-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 2px;
  height: 12px;
  margin-top: -6px;
  background: transparent;
  transition: background var(--t) var(--ease), height var(--t) var(--ease);
}
.page-products .rail-link:hover {
  color: var(--cold-white);
  padding-left: 18px;
}
.page-products .rail-link:hover::before,
.page-products .rail-link.is-active::before {
  background: var(--neon);
  height: 16px;
  margin-top: -8px;
}
.page-products .rail-link.is-active {
  color: var(--neon);
}
.page-products .rail-link:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
  border-radius: var(--radius-s);
}

/* ===== 章节标题 ===== */
.page-products .section-head {
  padding-top: 16px;
  margin-bottom: 22px;
  border-top: 1px solid var(--hair-strong);
}
.page-products .section-index {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--neon);
}
.page-products .section-title {
  margin: 0 0 8px;
  font-size: clamp(20px, 2.5vw, 29px);
  font-weight: 600;
  line-height: 1.26;
  letter-spacing: -0.015em;
  color: var(--cold-white);
}
.page-products .section-note {
  margin: 0;
  max-width: 46em;
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--steel-500);
}

/* ===== 模块总览编号清单 ===== */
.page-products .mod-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--hair);
}
.page-products .mod-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    "num name go"
    ". desc .";
  column-gap: 14px;
  row-gap: 3px;
  align-items: baseline;
  padding: 14px 8px 14px 4px;
  border-bottom: 1px solid var(--hair);
  transition: background var(--t) var(--ease), padding-left var(--t) var(--ease);
}
.page-products .mod-item:hover {
  background: rgba(27, 47, 92, 0.55);
  padding-left: 16px;
}
.page-products .mod-num {
  grid-area: num;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--steel-500);
}
.page-products .mod-name {
  grid-area: name;
  font-size: 15px;
  font-weight: 700;
  font-style: italic;
  letter-spacing: -0.01em;
  color: var(--cold-white);
}
.page-products .mod-desc {
  grid-area: desc;
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist-200);
}
.page-products .mod-anchor {
  grid-area: go;
  align-self: start;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--t) var(--ease), color var(--t) var(--ease);
}
.page-products .mod-anchor:hover,
.page-products .mod-anchor:focus-visible {
  border-bottom-color: var(--neon);
}
.page-products .mod-anchor:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

/* ===== 要点与摘要行 ===== */
.page-products .lead-line {
  margin: 0 0 16px;
  padding-left: 14px;
  border-left: 2px solid var(--neon);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.55;
  color: var(--cold-white);
}
.page-products .point-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
  max-width: 46em;
}
.page-products .point-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--mist-200);
}
.page-products .point-list li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 0.72em;
  width: 7px;
  height: 1px;
  background: var(--neon);
  opacity: 0.7;
}
.page-products .mini-label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--steel-500);
}

/* ===== 图形块 ===== */
.page-products .figure-block {
  margin: 0;
  min-width: 0;
}
.page-products .img-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--hair);
  border-radius: var(--pp-radius);
  background:
    linear-gradient(180deg, rgba(20, 34, 56, 0.9), rgba(11, 20, 40, 0.95));
}
.page-products .img-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}
.page-products .figure-block figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--steel-500);
  max-width: 54em;
}

/* ===== 非对称分栏 ===== */
.page-products .split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 38px);
  align-items: start;
}
@media (min-width: 760px) {
  .page-products .split-7-5 {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
  .page-products .split-5-7 {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

/* ===== 统计行 ===== */
.page-products .stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 4vw, 52px);
  margin-top: clamp(24px, 4vw, 40px);
  padding-top: 18px;
  border-top: 1px solid var(--hair);
}
.page-products .stat {
  display: grid;
  gap: 5px;
  min-width: 0;
}
.page-products .stat-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--cold-white);
}
.page-products .stat-label {
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--steel-500);
}

/* ===== 热力矩阵 ===== */
.page-products .heat-block {
  margin-top: clamp(24px, 4vw, 42px);
}
.page-products .heat-grid {
  display: grid;
  grid-template-columns: repeat(var(--cols, 6), minmax(0, 1fr));
  gap: 6px;
  max-width: 620px;
}
.page-products .heat-cell {
  display: block;
  aspect-ratio: 1 / 1;
  border-radius: 3px;
  border: 1px solid var(--pp-soft);
  background-color: var(--ink-700);
  background-image: linear-gradient(
    to top,
    rgba(75, 255, 158, calc(var(--heat, 0) * 0.68)),
    rgba(75, 255, 158, calc(var(--heat, 0) * 0.68))
  );
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
}
.page-products .heat-cell:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px var(--neon);
}

/* ===== 射门散点 ===== */
.page-products .scatter-block {
  margin-top: clamp(24px, 4vw, 44px);
}
.page-products .scatter-field {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--hair);
  border-radius: var(--pp-radius);
  background:
    radial-gradient(120% 92% at 50% 0%, rgba(46, 74, 107, 0.38), transparent 72%),
    var(--ink-800);
}
.page-products .scatter-field::after {
  content: "";
  position: absolute;
  inset: 14% 22%;
  border: 1px dashed rgba(169, 189, 212, 0.18);
  border-radius: 42% / 18%;
}
.page-products .scatter-dot {
  position: absolute;
  left: var(--x, 50%);
  top: var(--y, 50%);
  width: 11px;
  height: 11px;
  margin: -6px 0 0 -6px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 4px rgba(75, 255, 158, 0.16);
  cursor: default;
}
.page-products .scatter-dot:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 4px;
}
.page-products .scatter-tip {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 10px);
  transform: translate(-50%, 4px);
  white-space: nowrap;
  padding: 5px 9px;
  border: 1px solid var(--neon);
  border-radius: var(--radius-s);
  background: var(--ink-800);
  color: var(--cold-white);
  font-size: 11px;
  letter-spacing: 0.03em;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease);
}
.page-products .scatter-dot:hover .scatter-tip,
.page-products .scatter-dot:focus-visible .scatter-tip {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ===== 横向条形对照 ===== */
.page-products .bar-chart {
  display: grid;
  gap: 14px;
  margin: clamp(24px, 4vw, 40px) 0;
}
.page-products .bar-row {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
}
.page-products .bar-label {
  font-size: 13px;
  color: var(--mist-200);
}
.page-products .bar-track {
  position: relative;
  height: 10px;
  overflow: hidden;
  border-radius: var(--radius-pill);
  background: var(--ink-700);
}
.page-products .bar-fill {
  display: block;
  width: var(--bar, 50%);
  height: 100%;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--ink-700), var(--neon));
}
.page-products .bar-row.is-warm .bar-fill {
  background: linear-gradient(90deg, var(--flare), var(--amber));
}
.page-products .bar-value {
  min-width: 3em;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--steel-500);
  text-align: right;
}

/* ===== 折叠面板 ===== */
.page-products .accordion {
  border-top: 1px solid var(--hair-strong);
}
.page-products .accordion-item {
  border-bottom: 1px solid var(--hair);
}
.page-products .accordion-heading {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}
.page-products .accordion-trigger {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 4px;
  border: 0;
  background: transparent;
  color: var(--cold-white);
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  cursor: pointer;
  transition: color var(--t) var(--ease), padding-left var(--t) var(--ease);
}
.page-products .accordion-trigger::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--neon);
  transition: transform var(--t) var(--ease);
}
.page-products .accordion-trigger[aria-expanded="true"]::after {
  transform: rotate(45deg);
}
.page-products .accordion-trigger:hover {
  color: var(--neon);
  padding-left: 10px;
}
.page-products .accordion-trigger:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
  border-radius: var(--radius-s);
}
.page-products .accordion-panel {
  max-width: 44em;
  padding: 0 4px 20px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist-200);
}
.page-products .accordion-panel p {
  margin: 0 0 10px;
}
.page-products .accordion-panel p:last-child {
  margin-bottom: 0;
}

/* ===== 结尾内链句 ===== */
.page-products .outro-links {
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--hair);
  max-width: 48em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--steel-500);
}
.page-products .outro-links a {
  color: var(--mist-200);
  text-decoration: none;
  border-bottom: 1px solid var(--hair-strong);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}
.page-products .outro-links a:hover,
.page-products .outro-links a:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

/* ===== 窄屏收口 ===== */
@media (max-width: 620px) {
  .page-products .mod-item {
    grid-template-columns: auto minmax(0, 1fr);
    grid-template-areas:
      "num name"
      ". desc";
    padding-right: 4px;
  }
  .page-products .mod-anchor {
    display: none;
  }
  .page-products .bar-row {
    grid-template-columns: 66px minmax(0, 1fr);
    gap: 10px;
  }
  .page-products .bar-value {
    grid-column: 2;
    text-align: left;
    min-width: 0;
  }
  .page-products .scatter-tip {
    white-space: normal;
    width: max-content;
    max-width: 132px;
    text-align: center;
  }
  .page-products .rail-meta {
    max-width: 34em;
  }
}

@media (max-width: 420px) {
  .page-products .page-title {
    font-size: 30px;
  }
  .page-products .heat-grid {
    gap: 4px;
  }
  .page-products .scatter-dot {
    width: 9px;
    height: 9px;
    margin: -5px 0 0 -5px;
  }
}

.page-products {
  --bar: 1rem;
  --cols: inherit;
  --heat: transparent;
  --x: inherit;
  --y: inherit;
}