.page-products {
  --fn-gap: clamp(56px, 8vw, 104px);
  --fn-panel-pad: clamp(20px, 3vw, 36px);
  --fn-shift: clamp(0px, 4vw, 64px);
  --fn-measure: 62ch;
}

.page-products .section {
  padding-block: clamp(56px, 8vw, 104px);
}

.page-products .breadcrumb {
  margin-top: clamp(20px, 3vw, 36px);
}

/* ---------- 首屏 ---------- */
.page-products .fn-hero {
  padding-top: clamp(24px, 4vw, 40px);
}

.page-products .fn-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-products .fn-hero-main h1 {
  margin: 18px 0 20px;
  font-size: clamp(2rem, 5.2vw, 3.5rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-products .fn-hero-main .section-lede {
  max-width: var(--fn-measure);
}

.page-products .fn-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-products .fn-aside {
  display: block;
}

.page-products .fn-status {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.page-products .fn-status-label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-products .fn-stat-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.page-products .fn-stat-list li {
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: baseline;
  gap: 6px;
  padding: 14px 0;
  border-top: 1px solid var(--line-soft);
}

.page-products .fn-stat-list li:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-products .fn-stat-num {
  font-family: var(--font-mono);
  font-size: 30px;
  line-height: 1;
  font-weight: 600;
  color: var(--cyan);
}

.page-products .fn-stat-unit {
  font-size: 13px;
  color: var(--muted);
}

.page-products .fn-stat-txt {
  grid-column: 1 / -1;
  font-size: 14px;
  color: var(--text-soft);
}

/* ---------- 目录与筛选 ---------- */
.page-products .fn-directory .section-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-products .fn-directory .section-lede {
  max-width: var(--fn-measure);
}

.page-products .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(36px, 5vw, 56px);
}

.page-products .filter-btn {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  padding: 8px 16px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: var(--ink-850);
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.25s ease, color 0.25s ease, background-color 0.25s ease;
}

.page-products .filter-btn:hover {
  border-color: var(--cyan-soft);
  color: var(--cyan-soft);
}

.page-products .filter-btn[aria-pressed="true"] {
  border-color: var(--cyan);
  background: var(--cyan-dim);
  color: var(--cyan);
}

/* ---------- 功能面板 ---------- */
.page-products .fn-list {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--fn-gap);
}

.page-products .fn-panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
  padding: var(--fn-panel-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(158deg, var(--ink-800) 0%, var(--ink-850) 100%);
  transition: border-color 0.35s ease;
}

.page-products .fn-panel:hover {
  border-color: var(--cyan-soft);
}

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

.page-products .fn-panel .capsule {
  transition: border-color 0.3s ease, background-color 0.3s ease, color 0.3s ease;
}

.page-products .fn-panel:hover .capsule {
  border-color: var(--cyan);
  background: var(--cyan-dim);
  color: var(--cyan);
}

.page-products .fn-panel:hover .capsule--solid {
  border-color: var(--orange-soft);
  background: var(--orange-soft);
  color: var(--ink-950);
}

.page-products .fn-visual {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .fn-frame {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--ink-950);
  overflow: hidden;
  line-height: 0;
}

.page-products .fn-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

.page-products .fn-visual .media-caption {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

.page-products .fn-content {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.page-products .fn-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .fn-title {
  margin: 0;
  font-size: clamp(1.3rem, 2.4vw, 1.85rem);
  line-height: 1.34;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-products .fn-content > p {
  margin: 0;
  max-width: var(--fn-measure);
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-products .fn-points {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-products .fn-points li {
  position: relative;
  padding-left: 22px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-products .fn-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 10px;
  height: 1px;
  background: var(--cyan);
}

.page-products .fn-link {
  margin: 0;
  font-size: 14.5px;
  color: var(--muted);
}

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

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

.page-products .fn-content .accordion {
  margin-top: 2px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--ink-850);
  overflow: hidden;
}

.page-products .fn-content .accordion summary {
  cursor: pointer;
  padding: 14px 18px;
  font-size: 14.5px;
  color: var(--cyan-soft);
  list-style: none;
}

.page-products .fn-content .accordion summary::-webkit-details-marker {
  display: none;
}

.page-products .fn-content .accordion summary::after {
  content: "＋";
  float: right;
  font-family: var(--font-mono);
  color: var(--muted);
}

.page-products .fn-content .accordion[open] summary::after {
  content: "－";
  color: var(--cyan);
}

.page-products .fn-content .accordion-body {
  padding: 0 18px 16px;
}

.page-products .fn-content .accordion-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-products .fn-content .accordion-body a {
  color: var(--cyan);
}

/* ---------- 运行要求表 ---------- */
.page-products .fn-panel--wide {
  background: linear-gradient(158deg, var(--ink-850) 0%, var(--ink-800) 100%);
}

.page-products .spec-scroll {
  margin-top: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--ink-850);
}

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

.page-products .spec-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-products .spec-table th,
.page-products .spec-table td {
  padding: 14px 20px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-products .spec-table th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--ink-950);
}

.page-products .spec-table td:first-child {
  white-space: nowrap;
  color: var(--text);
  font-weight: 500;
}

.page-products .spec-table td:last-child {
  color: var(--text-soft);
}

.page-products .fn-spec-note {
  margin: 0;
  font-size: 13.5px;
  color: var(--muted);
}

.page-products .fn-spec-note a {
  color: var(--cyan);
}

/* ---------- 下一步 ---------- */
.page-products .fn-next-panel {
  display: flex;
  flex-direction: column;
  gap: clamp(24px, 3vw, 36px);
}

.page-products .fn-next-head .section-title {
  margin: 14px 0 0;
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  line-height: 1.3;
}

.page-products .fn-next-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-products .fn-next-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(10, 16, 36, 0.5);
  text-decoration: none;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.page-products .fn-next-card:hover,
.page-products .fn-next-card:focus-visible {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-products .fn-next-kicker {
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-products .fn-next-name {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
}

.page-products .fn-next-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 宽屏布局 ---------- */
@media (min-width: 900px) {
  .page-products .fn-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

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

@media (min-width: 1000px) {
  .page-products .fn-panel {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
  }

  .page-products .fn-panel--flip .fn-visual {
    order: 2;
  }

  .page-products .fn-panel--flip .fn-content {
    order: 1;
  }

  .page-products .fn-panel--wide {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .fn-panel--shift-a {
    margin-right: var(--fn-shift);
  }

  .page-products .fn-panel--shift-b {
    margin-left: var(--fn-shift);
  }
}

@media (min-width: 1200px) {
  .page-products .fn-list::before {
    content: "";
    position: absolute;
    left: -32px;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background: linear-gradient(180deg, transparent, var(--line) 6%, var(--line) 94%, transparent);
  }

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

@media (max-width: 599px) {
  .page-products .fn-stat-num {
    font-size: 25px;
  }

  .page-products .fn-hero-actions .btn {
    width: 100%;
    text-align: center;
  }

  .page-products .fn-panel {
    border-radius: var(--radius-lg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .fn-panel,
  .page-products .fn-panel .capsule,
  .page-products .fn-next-card,
  .page-products .filter-btn {
    transition: none;
  }

  .page-products .fn-next-card:hover,
  .page-products .fn-next-card:focus-visible {
    transform: none;
  }
}