.page-products {
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-products .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--line);
}

.page-products .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  position: relative;
  border-bottom: 1px solid var(--line);
  background-color: var(--bg-deep);
  overflow: hidden;
}

.page-products .prod-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: var(--grid-cell) var(--grid-cell);
  opacity: 0.3;
}

.page-products .prod-hero::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(to bottom, var(--cyan), var(--cyan-dim) 55%, transparent);
}

.page-products .prod-hero-inner {
  position: relative;
  z-index: 1;
  padding: 26px 20px 30px;
  max-width: var(--maxw);
  margin: 0 auto;
}

.page-products .prod-eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products .prod-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(2rem, 7vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 18em;
}

.page-products .prod-hero .lead {
  margin: 0 0 22px;
  max-width: 46em;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--muted);
}

/* 三步路径条 */
.page-products .prod-path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: var(--surface);
  margin-bottom: 24px;
}

.page-products .prod-path-step {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--ink);
}

.page-products .prod-path-step em {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 11px;
  color: var(--orange);
}

.page-products .prod-path-sep {
  color: var(--cyan-dim);
  font-family: var(--font-mono);
}

.page-products .prod-path-cta {
  margin-left: auto;
}

/* 数据条 */
.page-products .prod-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--line);
}

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

.page-products .prod-fact dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 6px;
}

.page-products .prod-fact dd {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-products .prod-fact p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 功能档案 ---------- */
.page-products .prod-functions {
  padding: 34px 0 10px;
}

.page-products .section-head {
  margin-bottom: 22px;
}

.page-products .section-index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange);
  margin-bottom: 8px;
}

.page-products .section-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4.6vw, 2rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-products .section-desc {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--muted);
  max-width: 44em;
}

/* 标签列 */
.page-products .prod-tabs {
  display: block;
}

.page-products .prod-tablist {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
  scrollbar-width: thin;
}

.page-products .prod-tab {
  flex: 0 0 auto;
  display: grid;
  gap: 2px;
  min-width: 132px;
  padding: 10px 12px 12px;
  text-align: left;
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-bottom: 3px solid transparent;
  border-radius: 0;
  color: var(--ink);
  font-family: var(--font-body);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease), background-color var(--dur-fast) var(--ease);
}

.page-products .prod-tab-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--orange);
}

.page-products .prod-tab-name {
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-products .prod-tab-sub {
  font-size: 0.76rem;
  line-height: 1.4;
  color: var(--muted);
}

.page-products .prod-tab:hover {
  border-color: var(--cyan-dim);
}

.page-products .prod-tab[aria-selected="true"] {
  background: var(--surface);
  border-color: var(--line);
  border-bottom-color: var(--cyan);
}

.page-products .prod-tab[aria-selected="true"] .prod-tab-sub {
  color: var(--cyan);
}

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

/* 面板 */
.page-products .prod-panel {
  display: block;
  padding: 20px;
  border: 1px solid var(--line);
  background: var(--surface);
}

.page-products .prod-panel[hidden] {
  display: none;
}

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

.page-products .prod-panel p {
  margin: 0 0 1em;
  font-size: 0.97rem;
  line-height: 1.78;
  color: var(--ink);
}

.page-products .prod-h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 4vw, 1.6rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
  padding-left: 12px;
  border-left: 3px solid var(--cyan);
}

.page-products .prod-figure {
  margin: 0 0 18px;
  border: 1px solid var(--line);
}

.page-products .prod-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.9);
}

.page-products .prod-figure .media-caption {
  margin: 0;
  padding: 8px 10px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-products .prod-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-dim);
  font-size: 0.92rem;
  margin-right: 18px;
  display: inline-block;
}

.page-products .prod-link:hover,
.page-products .prod-link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--orange);
}

/* 列表 */
.page-products .prod-list {
  list-style: none;
  margin: 0 0 1.2em;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .prod-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.93rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .prod-list-key {
  display: inline-block;
  min-width: 5.2em;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

/* 两步分栏 */
.page-products .prod-two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: start;
}

.page-products .prod-steps {
  list-style: none;
  margin: 0 0 1em;
  padding: 0;
  counter-reset: none;
}

.page-products .prod-steps li {
  padding: 12px 0 12px 12px;
  border-left: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-size: 0.93rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .prod-steps li:first-child {
  border-top: 1px solid var(--line);
}

.page-products .prod-steps strong {
  color: var(--ink);
  margin-right: 6px;
}

.page-products .prod-step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--orange);
  margin-bottom: 4px;
}

/* 数据条 */
.page-products .prod-stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 0 0 1.2em;
}

.page-products .prod-stat {
  padding: 12px 10px;
  border-right: 1px solid var(--line);
  display: grid;
  gap: 4px;
}

.page-products .prod-stat:last-child {
  border-right: 0;
}

.page-products .prod-stat-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 1.4rem;
  color: var(--orange);
  line-height: 1;
}

.page-products .prod-stat-label {
  font-size: 0.76rem;
  line-height: 1.5;
  color: var(--muted);
}

/* V3 对照表 */
.page-products .prod-compare {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 14px;
  font-size: 0.86rem;
  line-height: 1.6;
  background: var(--bg-deep);
}

.page-products .prod-compare caption {
  caption-side: top;
  text-align: left;
  padding: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-products .prod-compare th,
.page-products .prod-compare td {
  border: 1px solid var(--line);
  padding: 9px 8px;
  text-align: left;
  vertical-align: top;
  color: var(--muted);
}

.page-products .prod-compare thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  background: var(--surface);
}

.page-products .prod-compare tbody th {
  color: var(--ink);
  white-space: nowrap;
}

.page-products .prod-diff-cell {
  color: var(--ink);
  background: rgba(255, 138, 61, 0.1);
  border-left: 3px solid var(--orange) !important;
}

/* ---------- 更新节奏 ---------- */
.page-products .prod-rhythm {
  padding: 38px 0 8px;
}

.page-products .prod-rhythm-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
}

.page-products .prod-rhythm-copy p {
  margin: 0 0 1em;
  font-size: 0.97rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-products .prod-rhythm .prod-figure {
  margin: 0;
  border: 1px solid var(--line);
}

/* ---------- 下一步 ---------- */
.page-products .prod-next {
  margin: 34px 0 0;
  padding: 26px 20px;
  border-top: 1px solid var(--line);
  background: var(--bg-deep);
}

.page-products .prod-next-title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 4vw, 1.5rem);
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-products .prod-next-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-products .prod-next-card {
  display: block;
  padding: 16px 12px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  transition: background-color var(--dur-fast) var(--ease);
}

.page-products .prod-next-card:hover,
.page-products .prod-next-card:focus-visible {
  background: var(--surface);
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-products .prod-next-tag {
  display: inline-block;
  margin-bottom: 8px;
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--bg-deep);
  background: var(--cyan);
}

.page-products .prod-next-card strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 6px;
}

.page-products .prod-next-card p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 右侧收藏浮岛 ---------- */
.page-products .prod-fav-rail {
  display: none;
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-products .prod-hero-inner {
    padding: 40px 40px 44px 40px;
  }

  .page-products .prod-hero::after {
    width: 4px;
  }

  .page-products .prod-facts {
    grid-template-columns: repeat(3, 1fr);
    border-bottom: 1px solid var(--line);
  }

  .page-products .prod-fact {
    padding: 16px 20px 16px 20px;
    border-right: 1px solid var(--line);
    border-bottom: 0;
  }

  .page-products .prod-fact:first-child {
    padding-left: 0;
  }

  .page-products .prod-fact:last-child {
    border-right: 0;
  }

  .page-products .prod-functions {
    padding-top: 46px;
  }

  .page-products .prod-tabs {
    display: grid;
    grid-template-columns: 4fr 8fr;
    gap: var(--gutter);
    align-items: start;
  }

  .page-products .prod-tablist {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    margin-bottom: 0;
    border-bottom: 0;
    border-left: 1px solid var(--line);
    position: sticky;
    top: 104px;
  }

  .page-products .prod-tab {
    min-width: 0;
    border: 0;
    border-left: 3px solid transparent;
    border-bottom: 1px solid var(--line);
    background: transparent;
    padding: 12px 14px 14px;
  }

  .page-products .prod-tab:hover {
    background: var(--bg-deep);
    border-left-color: var(--cyan-dim);
  }

  .page-products .prod-tab[aria-selected="true"] {
    background: var(--surface);
    border-left-color: var(--cyan);
  }

  .page-products .prod-panel {
    padding: 26px 26px 22px;
    margin-top: 40px;
  }

  .page-products .prod-two-col {
    grid-template-columns: 1fr 0.8fr;
    gap: 24px;
  }

  .page-products .prod-rhythm-grid {
    grid-template-columns: 1.4fr 1fr;
    gap: 32px;
  }

  .page-products .prod-next {
    padding: 32px 40px;
  }

  .page-products .prod-next-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border-bottom: 1px solid var(--line);
  }

  .page-products .prod-next-card {
    border-bottom: 0;
    border-right: 1px solid var(--line);
    padding: 18px 20px;
  }

  .page-products .prod-next-card:last-child {
    border-right: 0;
  }

  .page-products .prod-fav-rail {
    display: flex;
    flex-direction: column;
    gap: 6px;
    position: fixed;
    right: 0;
    top: 42%;
    z-index: 40;
    width: 60px;
    padding: 8px 6px;
    background: var(--bg-deep);
    border: 1px solid var(--line);
    border-right: 0;
  }

  .page-products .prod-fav {
    display: grid;
    gap: 4px;
    justify-items: center;
    padding: 8px 2px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 0;
    color: var(--ink);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 11px;
    line-height: 1.3;
    transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
  }

  .page-products .prod-fav-mark {
    font-size: 14px;
    color: var(--cyan);
  }

  .page-products .prod-fav-text {
    writing-mode: horizontal-tb;
    letter-spacing: 0.04em;
  }

  .page-products .prod-fav:hover {
    border-color: var(--cyan-dim);
  }

  .page-products .prod-fav[aria-pressed="true"] {
    border-color: var(--orange);
    color: var(--orange);
  }

  .page-products .prod-fav[aria-pressed="true"] .prod-fav-mark {
    color: var(--orange);
  }

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

  .page-products .prod-fav-link {
    display: block;
    padding: 7px 2px;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.06em;
    color: var(--muted);
    text-decoration: none;
    border: 1px solid var(--line);
  }

  .page-products .prod-fav-link:hover,
  .page-products .prod-fav-link:focus-visible {
    color: var(--cyan);
    border-color: var(--cyan-dim);
  }
}

@media (min-width: 1180px) {
  .page-products .prod-hero-inner {
    padding-left: 56px;
    padding-right: 56px;
  }

  .page-products .prod-panel {
    padding: 32px 34px 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-tab,
  .page-products .prod-next-card,
  .page-products .prod-fav {
    transition: none;
  }
}
<<<END>>>