.page-products {
  --cat-rail-w: 232px;
  --cat-block-gap: 56px;
  padding-bottom: 96px;
}

.page-products .breadcrumbs {
  padding: 18px 0 4px;
}

.page-products .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-products .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-cyan-strong);
}

.page-products .breadcrumb-list a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

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

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

/* ---------- 首屏 ---------- */

.page-products .cat-hero {
  position: relative;
  margin-top: 16px;
  padding: 34px 22px 30px;
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(47, 227, 208, 0.15), transparent 58%),
    radial-gradient(90% 130% at 100% 100%, rgba(255, 107, 74, 0.14), transparent 62%),
    var(--panel-deep);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-products .cat-eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-products .cat-hero h1 {
  margin: 0 0 16px;
  font-size: clamp(30px, 5.4vw, 52px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-products .cat-hero .lead {
  max-width: 62ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .cat-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .cat-stat {
  padding: 14px 16px;
  background: var(--void);
}

.page-products .cat-stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--cyan);
}

.page-products .cat-stat:nth-child(3) .cat-stat-num,
.page-products .cat-stat:nth-child(4) .cat-stat-num {
  color: var(--coral);
}

.page-products .cat-stat-label {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--muted);
}

/* ---------- 主布局 ---------- */

.page-products .cat-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  margin-top: 38px;
}

.page-products .cat-rail {
  padding: 18px 16px;
  border: 1px solid var(--line);
  background: var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-products .cat-rail-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-products .cat-rail-list {
  display: grid;
  gap: 2px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-products .cat-rail-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 10px;
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .cat-rail-list a:hover {
  background: var(--cyan-faint);
  border-left-color: var(--cyan);
}

.page-products .rail-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

.page-products .cat-rail-foot {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .cat-rail-foot a,
.page-products .cat-tail a,
.page-products .rule-tail a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan-strong);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .cat-rail-foot a:hover,
.page-products .cat-tail a:hover,
.page-products .rule-tail a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

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

/* ---------- 区块骨架 ---------- */

.page-products .cat-block {
  margin-bottom: var(--cat-block-gap);
  scroll-margin-top: 96px;
}

.page-products .cat-block:last-child {
  margin-bottom: 0;
}

.page-products .cat-block-head {
  margin-bottom: 22px;
  padding-left: 16px;
  border-left: 3px solid var(--cyan);
}

.page-products .cat-block-kicker {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-products .cat-block-title {
  margin: 0 0 10px;
  font-size: clamp(24px, 3.2vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-products .cat-block-note {
  max-width: 68ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .cat-tail {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 视觉容器 ---------- */

.page-products .media-frame {
  margin: 0 0 26px;
  border: 1px solid var(--line-cyan);
  background: var(--panel-deep);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

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

.page-products .media-caption {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 入口清单分组 ---------- */

.page-products .cat-group {
  margin-bottom: 14px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cat-accent, var(--cyan));
  background: var(--panel);
}

.page-products .cat-group--index,
.page-products .group-card--index {
  --cat-accent: var(--cyan);
}

.page-products .cat-group--guide,
.page-products .group-card--guide {
  --cat-accent: var(--mist);
}

.page-products .cat-group--member,
.page-products .group-card--member {
  --cat-accent: var(--coral);
}

.page-products .cat-group--version,
.page-products .group-card--version {
  --cat-accent: var(--amber);
}

.page-products .cat-group--quick,
.page-products .group-card--quick {
  --cat-accent: var(--cyan);
}

.page-products .cat-group--faq,
.page-products .group-card--faq {
  --cat-accent: var(--mist);
}

.page-products .cat-group--feedback,
.page-products .group-card--feedback {
  --cat-accent: var(--amber);
}

.page-products .cat-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
}

.page-products .cat-group-code {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--void);
  background: var(--cat-accent, var(--cyan));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%);
}

.page-products .cat-group-name {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .cat-group-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-products .cat-rows {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 14px 16px;
  border-top: 1px solid var(--line);
  transition: background-color var(--dur) var(--ease);
}

.page-products .cat-row:hover {
  background: var(--cyan-faint);
}

.page-products .cat-row-code {
  justify-self: start;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--cyan);
  background: var(--cyan-wash);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%);
}

.page-products .cat-row-name {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.page-products .cat-row-use {
  display: block;
  margin-top: 3px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

.page-products .cat-row-meta {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

/* ---------- 分步指南 ---------- */

.page-products .stage {
  margin-bottom: 18px;
  border: 1px solid var(--line);
  background: var(--panel-deep);
}

.page-products .stage:last-of-type {
  margin-bottom: 0;
}

.page-products .stage-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(47, 227, 208, 0.1), transparent 72%);
}

.page-products .stage-index {
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  background: var(--cyan-wash);
}

.page-products .stage-name {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .stage-count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-products .step-list {
  padding: 4px 0;
}

.page-products .step-item {
  border-bottom: 1px solid var(--line);
}

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

.page-products .step-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  cursor: pointer;
  list-style: none;
  transition: background-color var(--dur) var(--ease);
}

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

.page-products .step-summary:hover {
  background: var(--cyan-faint);
}

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

.page-products .step-num {
  flex: none;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--cyan);
  background: var(--cyan-wash);
  border-left: 2px solid var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%);
}

.page-products .step-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.page-products .step-caret {
  flex: none;
  width: 8px;
  height: 8px;
  margin-left: auto;
  border-right: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform var(--dur) var(--ease);
}

.page-products .step-item[open] .step-caret {
  transform: rotate(-135deg);
}

.page-products .step-body {
  display: grid;
  gap: 9px;
  padding: 2px 16px 18px;
}

.page-products .step-line {
  display: grid;
  grid-template-columns: 66px minmax(0, 1fr);
  gap: 12px;
  font-size: 14px;
  line-height: 1.7;
}

.page-products .step-label {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-products .step-text {
  color: var(--ink);
}

/* ---------- 七分类卡 ---------- */

.page-products .group-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-products .group-card {
  position: relative;
  padding: 20px 18px 18px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--cat-accent, var(--cyan));
  background: var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .group-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-cyan-strong);
  border-top-color: var(--cat-accent, var(--cyan));
}

.page-products .group-letter {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--void);
  background: var(--cat-accent, var(--cyan));
}

.page-products .group-name {
  margin: 12px 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
}

.page-products .group-scope {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .group-facts {
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.page-products .group-fact {
  display: grid;
  grid-template-columns: 66px minmax(0, 1fr);
  gap: 10px;
  font-size: 13px;
  line-height: 1.6;
}

.page-products .group-fact dt {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-products .group-fact dd {
  margin: 0;
  color: var(--ink);
}

/* ---------- 会员中心表 ---------- */

.page-products .table-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-products .member-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .member-table caption {
  caption-side: top;
  padding: 12px 14px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-products .member-table th,
.page-products .member-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-top: 1px solid var(--line);
}

.page-products .member-table thead th {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--cyan);
  background: var(--panel-deep);
  white-space: nowrap;
}

.page-products .member-table tbody tr {
  transition: background-color var(--dur) var(--ease);
}

.page-products .member-table tbody tr:hover {
  background: var(--cyan-faint);
}

.page-products .member-table td {
  color: var(--muted);
  line-height: 1.7;
}

.page-products .member-person {
  font-weight: 700;
  color: var(--ink) !important;
  white-space: nowrap;
}

.page-products .member-tag {
  display: inline-block;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
  background: var(--cyan-wash);
  white-space: nowrap;
}

.page-products .member-clicks {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--coral) !important;
  white-space: nowrap;
}

/* ---------- 速查对照表 ---------- */

.page-products .tag-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-products .tag-cell {
  display: grid;
  gap: 5px;
  padding: 12px 13px;
  background: var(--void);
  transition: background-color var(--dur) var(--ease);
}

.page-products .tag-cell:hover {
  background: var(--panel);
}

.page-products .tag-cell-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.page-products .tag-cell-code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

/* ---------- 编号与版本 ---------- */

.page-products .rule-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-products .rule-grid .media-frame {
  margin-bottom: 0;
}

.page-products .rule-list {
  display: grid;
  gap: 12px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-products .rule-list li {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 14px;
  border-left: 3px solid var(--line-cyan-strong);
  background: var(--panel);
  transition: border-color var(--dur) var(--ease);
}

.page-products .rule-list li:hover {
  border-left-color: var(--cyan);
}

.page-products .rule-key {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--cyan);
  padding-top: 2px;
}

.page-products .rule-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-products .rule-tail {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-products .cat-hero {
    padding: 42px 34px 38px;
  }

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

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

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

@media (min-width: 768px) {
  .page-products .cat-row {
    grid-template-columns: 86px minmax(0, 1fr) 96px;
    align-items: baseline;
    gap: 16px;
    padding: 14px 18px;
  }

  .page-products .cat-row-meta {
    text-align: right;
  }

  .page-products .cat-group-head {
    padding: 15px 18px;
  }
}

@media (min-width: 900px) {
  .page-products .rule-grid {
    grid-template-columns: 5fr 7fr;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-products .cat-layout {
    grid-template-columns: var(--cat-rail-w) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-products .cat-rail {
    position: sticky;
    top: 92px;
  }

  .page-products .cat-hero {
    padding: 52px 46px 46px;
  }
}

@media (min-width: 1180px) {
  .page-products .group-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .group-card:first-child {
    grid-column: span 2;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-products .group-card,
  .page-products .step-caret,
  .page-products .cat-rail-list a,
  .page-products .cat-row,
  .page-products .tag-cell {
    transition: none;
  }

  .page-products .group-card:hover {
    transform: none;
  }
}