.page-products {
  --pp-gap: clamp(20px, 3.4vw, 48px);
  --pp-rail: 236px;
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  padding-top: clamp(18px, 3vw, 32px);
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(32px, 5.5vw, 76px) clamp(30px, 4.5vw, 56px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 96% at 82% 4%, rgba(255, 122, 41, 0.13), transparent 58%),
    radial-gradient(96% 80% at 6% 104%, rgba(168, 95, 58, 0.16), transparent 62%);
}

.page-products .prod-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  right: -140px;
  top: -180px;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  border: 1px solid var(--line);
  pointer-events: none;
}

.page-products .prod-hero-inner {
  position: relative;
  display: grid;
  gap: 18px;
}

.page-products .prod-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.95rem, 4.6vw, 3.5rem);
  line-height: 1.18;
  letter-spacing: 0.05em;
  color: var(--moon);
  max-width: 22ch;
}

.page-products .prod-lede {
  margin: 0;
  max-width: 68ch;
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 1.82;
  color: var(--silver);
}

.page-products .prod-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(14px, 2.4vw, 26px) 0 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-organic);
  overflow: hidden;
}

.page-products .prod-stats > div {
  background: var(--deep);
  padding: 14px 16px;
}

.page-products .prod-stats dt {
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--grey);
}

.page-products .prod-stats dd {
  margin: 0;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--silver);
}

.page-products .prod-stats dd .mono {
  margin-right: 4px;
  font-size: 24px;
  color: var(--signal);
  letter-spacing: 0.02em;
}

@media (min-width: 720px) {
  .page-products .prod-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 940px) {
  .page-products .prod-hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 22px clamp(28px, 4vw, 56px);
    align-items: end;
  }
  .page-products .prod-hero-inner .eyebrow,
  .page-products .prod-hero-inner .prod-stats {
    grid-column: 1 / -1;
  }
  .page-products .prod-hero-inner .note-vertical {
    grid-column: 1 / -1;
    grid-row: 1;
  }
}

/* ---------- 双栏骨架 ---------- */
.page-products .prod-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
  padding-bottom: clamp(40px, 6vw, 88px);
}

.page-products .prod-body {
  min-width: 0;
}

/* ---------- 索引带 ---------- */
.page-products .prod-rail {
  padding-top: clamp(22px, 3.6vw, 44px);
  min-width: 0;
}

.page-products .prod-rail-title,
.page-products .prod-rail-foot {
  display: none;
}

.page-products .prod-rail-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 2px 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-products .prod-rail-list::-webkit-scrollbar {
  display: none;
}

.page-products .rail-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: 12px 4px 12px 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--grey);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}

.page-products .rail-sq {
  width: 9px;
  height: 9px;
  flex: none;
  border: 1px solid currentColor;
  border-radius: 2px;
  transition: background var(--ease), border-color var(--ease);
}

.page-products .rail-link:hover {
  color: var(--signal);
  border-color: var(--signal);
  background: rgba(255, 122, 41, 0.08);
}

.page-products .rail-link:hover .rail-sq {
  background: var(--signal);
  border-color: var(--signal);
}

.page-products .rail-link:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

@media (min-width: 1000px) {
  .page-products .prod-layout {
    grid-template-columns: var(--pp-rail) minmax(0, 1fr);
    align-items: start;
  }
  .page-products .prod-rail {
    position: sticky;
    top: 92px;
    align-self: start;
    padding-right: 22px;
    border-right: 1px solid var(--line);
  }
  .page-products .prod-rail-title {
    display: block;
    margin: 0 0 16px;
    font-size: 11px;
    letter-spacing: 0.16em;
    color: var(--grey);
  }
  .page-products .prod-rail-list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding: 0;
  }
  .page-products .prod-rail-foot {
    display: block;
    margin-top: 22px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
  }
  .page-products .prod-rail-foot p {
    margin: 0 0 7px;
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--grey);
  }
}

/* ---------- 章节通用 ---------- */
.page-products .prod-chapter {
  padding-block: clamp(34px, 5vw, 62px);
  border-top: 1px solid var(--line);
  scroll-margin-top: 92px;
}

.page-products .prod-body > .prod-chapter:first-child {
  border-top: 0;
  padding-top: clamp(24px, 3.6vw, 44px);
}

.page-products .prod-chapter h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.5vw, 1.95rem);
  line-height: 1.3;
  letter-spacing: 0.05em;
  color: var(--moon);
}

.page-products .prod-chapter h3 {
  margin: 0 0 8px;
  font-size: 16px;
  line-height: 1.45;
  letter-spacing: 0.04em;
  color: var(--moon);
}

.page-products .chapter-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 14px;
  align-items: start;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-products .chapter-sub {
  grid-column: 2;
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
}

/* ---------- 图片框 ---------- */
.page-products .media-frame {
  display: block;
  margin: 0 0 clamp(22px, 3vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius-organic);
  overflow: hidden;
  background: var(--deep);
}

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

.page-products .media-frame figcaption {
  padding: 10px 15px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--grey);
}

/* ---------- 01 三种进入方式 ---------- */
.page-products .entry-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-products .entry-card {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--deep);
  border: 1px solid var(--line);
  border-radius: var(--radius-organic);
  transition: border-color var(--ease), transform var(--ease);
}

.page-products .entry-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 30px;
  width: 3px;
  height: 44px;
  border-radius: 0 3px 3px 0;
  background: var(--ochre);
  transition: background var(--ease);
}

.page-products .entry-card .eyebrow {
  margin-bottom: 10px;
}

.page-products .entry-card:hover {
  border-color: var(--signal);
  transform: translateY(-3px);
}

.page-products .entry-card:hover::before {
  background: var(--signal);
}

.page-products .entry-list {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .entry-list li {
  padding-left: 14px;
  border-left: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.72;
  color: var(--silver);
}

.page-products .entry-list .mono {
  display: inline-block;
  min-width: 42px;
  margin-right: 6px;
  color: var(--grey);
}

@media (min-width: 860px) {
  .page-products .entry-compare {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
  }
  .page-products .entry-card:nth-child(2) {
    margin-top: 28px;
  }
  .page-products .entry-card:nth-child(3) {
    margin-top: 56px;
  }
}

/* ---------- 02 三步路径 ---------- */
.page-products .step-rail {
  display: grid;
  gap: 1px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-organic);
  overflow: hidden;
}

.page-products .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 16px;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--deep);
}

.page-products .step-no {
  grid-row: 1 / span 2;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: 0.06em;
  color: var(--ochre);
}

.page-products .step h3 {
  margin-bottom: 6px;
}

.page-products .step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--silver);
}

.page-products .step-svg-wrap {
  margin-top: clamp(22px, 3vw, 34px);
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .step-svg {
  display: block;
  width: 100%;
  min-width: 560px;
  height: auto;
}

.page-products .step-svg .svg-line path {
  fill: none;
  stroke: var(--line);
  stroke-width: 1.5;
  stroke-linecap: round;
}

.page-products .step-svg .svg-dot circle {
  fill: var(--night);
  stroke: var(--signal);
  stroke-width: 1.5;
}

.page-products .step-svg .svg-dot circle:first-child,
.page-products .step-svg .svg-dot circle:last-child {
  fill: var(--signal);
}

.page-products .step-svg .svg-label text {
  fill: var(--grey);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* ---------- 03 标签订阅 ---------- */
.page-products .tag-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 32px);
}

.page-products .tag-tree {
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-products .tag-group {
  background: var(--deep);
  border: 1px solid var(--line);
  border-radius: 14px 4px 14px 4px;
  transition: border-color var(--ease);
}

.page-products .tag-group[open] {
  border-color: rgba(255, 122, 41, 0.42);
}

.page-products .tag-group summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--moon);
}

.page-products .tag-group summary::-webkit-details-marker {
  display: none;
}

.page-products .tag-group summary::before {
  content: "";
  width: 8px;
  height: 8px;
  flex: none;
  border: 1px solid var(--grey);
  border-radius: 2px;
  transition: background var(--ease), border-color var(--ease);
}

.page-products .tag-group[open] summary::before {
  background: var(--signal);
  border-color: var(--signal);
}

.page-products .tag-group summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: -2px;
}

.page-products .tag-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding: 0 16px 16px;
}

.page-products .tag-chip {
  padding: 4px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--silver);
  transition: color var(--ease), border-color var(--ease);
}

.page-products .tag-chip:hover {
  color: var(--signal);
  border-color: var(--signal);
}

.page-products .tag-note {
  margin: 6px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--grey);
}

@media (min-width: 900px) {
  .page-products .tag-layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 04 导出 ---------- */
.page-products .export-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(18px, 3vw, 28px);
}

.page-products .export-panel {
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--radius-organic);
  background:
    linear-gradient(158deg, rgba(255, 122, 41, 0.09), transparent 56%),
    var(--deep);
}

.page-products .export-panel .eyebrow {
  margin-bottom: 10px;
  color: var(--amber);
}

.page-products .export-panel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--silver);
}

.page-products .export-spec {
  display: grid;
  gap: 1px;
  margin: 18px 0 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 10px 3px 10px 3px;
  overflow: hidden;
}

.page-products .export-spec > div {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 14px;
  background: rgba(6, 9, 15, 0.55);
}

.page-products .export-spec dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--grey);
}

.page-products .export-spec dd {
  margin: 0;
  font-size: 13px;
  color: var(--silver);
}

.page-products .export-spec dd .mono {
  color: var(--signal);
}

.page-products .export-note {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--ochre);
  border-radius: 0 12px 12px 0;
  background: rgba(168, 95, 58, 0.12);
  font-size: 14px;
  line-height: 1.78;
  color: var(--silver);
}

.page-products .export-note .mono {
  color: var(--signal);
}

@media (min-width: 760px) {
  .page-products .export-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

/* ---------- 05 适配矩阵 ---------- */
.page-products .matrix-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  padding: 14px 16px;
  margin-bottom: clamp(14px, 2vw, 20px);
  border: 1px solid var(--line);
  border-radius: 14px 4px 14px 4px;
  background: var(--deep);
}

.page-products .matrix-legend > span {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 13px;
  color: var(--silver);
}

.page-products .matrix-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 16px 6px 16px 6px;
  background: var(--deep);
  -webkit-overflow-scrolling: touch;
}

.page-products .matrix {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-products .matrix caption {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-products .matrix th,
.page-products .matrix td {
  padding: 12px 14px;
  text-align: center;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}

.page-products .matrix thead th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--grey);
  background: rgba(30, 39, 54, 0.42);
}

.page-products .matrix tbody th {
  text-align: left;
  font-weight: 400;
  font-size: 13.5px;
  letter-spacing: 0.03em;
  color: var(--moon);
  font-family: var(--font-mono);
}

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

.page-products .matrix tbody tr:hover td,
.page-products .matrix tbody tr:hover th {
  background: rgba(30, 39, 54, 0.36);
}

.page-products .matrix-note {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  max-width: 66ch;
  font-size: 14px;
  line-height: 1.78;
  color: var(--grey);
}

/* ---------- 06 更新节奏 ---------- */
.page-products .cycle-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
}

.page-products .cycle-list {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .cycle-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .cycle-item:first-child {
  padding-top: 0;
}

.page-products .cycle-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .cycle-time {
  grid-row: 1 / span 2;
  align-self: start;
  min-width: 62px;
  padding: 5px 9px;
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber);
  background: rgba(168, 95, 58, 0.2);
  border-radius: 6px 2px 6px 2px;
}

.page-products .cycle-item h3 {
  margin-bottom: 6px;
}

.page-products .cycle-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--silver);
}

@media (min-width: 900px) {
  .page-products .cycle-layout {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
  }
}

/* ---------- 结尾行动区 ---------- */
.page-products .prod-next {
  padding-block: clamp(40px, 5.5vw, 76px);
  border-top: 1px solid var(--line);
  background:
    radial-gradient(76% 130% at 10% 0%, rgba(168, 95, 58, 0.18), transparent 62%),
    var(--night);
}

.page-products .prod-next-inner {
  display: grid;
  gap: 22px;
}

.page-products .prod-next h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.4vw, 1.85rem);
  line-height: 1.32;
  letter-spacing: 0.05em;
  color: var(--moon);
}

.page-products .prod-next p {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--silver);
}

.page-products .prod-next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (min-width: 800px) {
  .page-products .prod-next-inner {
    grid-template-columns: minmax(0, 1.2fr) auto;
    align-items: end;
    gap: 36px;
  }
}