/* ============ 体验中心 / page-products ============ */

.page-products {
  background: var(--paper);
  color: var(--graphite);
  overflow-x: clip;
}

.page-products a:focus-visible,
.page-products summary:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
}

.page-products .breadcrumb {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  font-size: var(--step-2);
}

.page-products .breadcrumb-list {
  padding: 14px 0;
  margin: 0;
}

/* ---------- 首屏 ---------- */

.pd-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  padding: 40px 0 48px;
}

.pd-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(217, 210, 197, 0.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(217, 210, 197, 0.09) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
}

.pd-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  right: -140px;
  top: -160px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(15, 163, 163, 0.34), transparent 68%);
  pointer-events: none;
}

.pd-hero-inner {
  display: grid;
  gap: 32px;
}

.pd-hero-mark {
  margin: 0 0 16px;
  font-size: var(--step-1);
  letter-spacing: 0.18em;
  color: var(--cyan-soft);
}

.pd-hero-title {
  margin: 0 0 18px;
  font-size: clamp(36px, 9.2vw, 84px);
  line-height: 1.04;
  font-weight: 900;
  letter-spacing: -0.025em;
  color: var(--card);
}

.pd-hero-title em {
  font-style: normal;
  color: var(--orange);
}

.pd-hero-lead {
  margin: 0;
  max-width: 60ch;
  font-size: var(--step-3);
  line-height: 1.9;
  color: rgba(247, 241, 230, 0.82);
}

.pd-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.pd-hero-actions .btn-outline {
  border-color: rgba(247, 241, 230, 0.55);
  color: var(--paper);
}

.pd-hero-actions .btn-outline:hover {
  background: rgba(247, 241, 230, 0.12);
}

.pd-hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 1px;
  background: rgba(217, 210, 197, 0.22);
  border: 1px solid rgba(217, 210, 197, 0.22);
}

.pd-stat {
  background: var(--ink);
  padding: 14px 16px;
}

.pd-stat dt {
  margin: 0 0 8px;
  font-size: var(--step-1);
  letter-spacing: 0.08em;
  color: var(--cyan-soft);
}

.pd-stat dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: var(--step-7);
  line-height: 1;
  color: var(--card);
}

.pd-stat dd small {
  font-family: var(--font-sans);
  font-size: var(--step-2);
  color: rgba(247, 241, 230, 0.6);
}

/* ---------- 产品线索引条 ---------- */

.pd-index {
  background: var(--ink-2);
  border-bottom: 1px solid rgba(15, 163, 163, 0.4);
}

.pd-index-scroll {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.pd-index-label {
  flex: 0 0 auto;
  font-size: var(--step-1);
  letter-spacing: 0.2em;
  color: var(--orange-soft);
}

.pd-index-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pd-index-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid rgba(143, 217, 214, 0.34);
  color: var(--paper);
  font-size: var(--step-2);
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.pd-index-link .mono {
  color: var(--cyan-soft);
  font-size: var(--step-1);
}

.pd-index-link:hover {
  background: rgba(15, 163, 163, 0.22);
  border-color: var(--cyan);
}

/* ---------- 区块通用 ---------- */

.pd-sec {
  padding: 48px 0;
}

.pd-sec--matrix {
  background: var(--card);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.pd-sec--lines,
.pd-sec--cta {
  background: var(--ink);
  color: var(--paper);
}

.pd-sec--scenes {
  background: var(--card);
}

.pd-sec-head {
  max-width: 76ch;
  margin-bottom: 30px;
}

.pd-sec-kicker {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.pd-sec-title {
  margin: 0 0 14px;
  font-size: clamp(24px, 5.4vw, 40px);
  line-height: 1.18;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.pd-sec-lead {
  margin: 0;
  font-size: var(--step-3);
  line-height: 1.9;
  color: var(--graphite);
}

.pd-sec--lines .pd-sec-title,
.pd-sec--cta .pd-sec-title {
  color: var(--card);
}

.pd-sec--lines .pd-sec-lead,
.pd-sec--cta .pd-sec-lead {
  color: rgba(247, 241, 230, 0.78);
}

.pd-sec,
.pd-line {
  scroll-margin-top: 120px;
}

/* ---------- 移动端版本说明 ---------- */

.pd-mobile-grid {
  display: grid;
  gap: 26px;
}

.pd-mobile-media {
  margin: 0;
  border: 1px solid var(--ink-2);
}

.pd-mobile-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.pd-fold {
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  margin-bottom: 10px;
  transition: border-color var(--dur) var(--ease);
}

.pd-fold[open] {
  border-left-color: var(--orange);
}

.pd-fold-sum {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: var(--step-4);
  font-weight: 700;
  color: var(--ink);
  transition: background var(--dur) var(--ease);
}

.pd-fold-sum::-webkit-details-marker {
  display: none;
}

.pd-fold-sum:hover {
  background: rgba(15, 163, 163, 0.08);
}

.pd-fold-sum::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--step-4);
  color: var(--cyan);
  line-height: 1;
}

.pd-fold[open] .pd-fold-sum::after {
  content: "–";
  color: var(--orange);
}

.pd-fold-idx {
  flex: 0 0 auto;
  font-size: var(--step-2);
  letter-spacing: 0.08em;
  color: var(--orange);
}

.pd-fold-body {
  padding: 0 16px 16px;
  border-top: 1px solid var(--line);
}

.pd-fold-body p {
  margin: 14px 0 0;
  font-size: var(--step-3);
  line-height: 1.9;
}

.pd-mobile-tip {
  margin: 16px 0 0;
  padding: 14px 16px;
  border: 1px dashed var(--cyan);
  background: rgba(143, 217, 214, 0.14);
  font-size: var(--step-2);
  line-height: 1.85;
  color: var(--ink-2);
}

/* ---------- 适配矩阵 ---------- */

.pd-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  font-size: var(--step-2);
}

.pd-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-2);
}

.pd-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cyan);
}

.pd-legend-dot[data-state="ok"] { background: var(--green); }
.pd-legend-dot[data-state="info"] { background: var(--cyan); }
.pd-legend-dot[data-state="update"] { background: var(--orange); }
.pd-legend-dot[data-state="warn"] { background: var(--red); }

.pd-matrix-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--card);
  -webkit-overflow-scrolling: touch;
}

.pd-matrix {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: var(--step-2);
}

.pd-matrix th,
.pd-matrix td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
}

.pd-matrix thead th {
  background: var(--ink-2);
  color: var(--paper);
  font-weight: 700;
  white-space: nowrap;
  border-bottom: none;
}

.pd-matrix tbody tr:hover {
  background: rgba(143, 217, 214, 0.16);
}

.pd-matrix tbody tr:last-child td {
  border-bottom: none;
}

.pd-matrix .mono {
  color: var(--ink-2);
  font-size: var(--step-1);
}

.pd-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  font-weight: 500;
}

.pd-status::before {
  content: "";
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cyan);
}

.pd-status[data-state="ok"]::before { background: var(--green); }
.pd-status[data-state="info"]::before { background: var(--cyan); }
.pd-status[data-state="update"]::before { background: var(--orange); }
.pd-status[data-state="warn"]::before { background: var(--red); }

.pd-dims {
  margin-top: 32px;
}

.pd-dims-title {
  margin: 0 0 8px;
  font-size: var(--step-5);
  font-weight: 700;
  color: var(--ink);
}

.pd-dims-note {
  margin: 0;
  max-width: 68ch;
  font-size: var(--step-2);
  line-height: 1.85;
}

.pd-dim-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 18px 0 0;
  padding: 1px;
  background: var(--line);
  list-style: none;
}

.pd-dim-list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 12px;
  background: var(--card);
  font-size: var(--step-2);
  line-height: 1.6;
}

.pd-dim-list .mono {
  flex: 0 0 auto;
  font-size: var(--step-1);
  letter-spacing: 0.06em;
  color: var(--cyan);
}

/* ---------- 六条产品线 ---------- */

.pd-line-grid {
  display: grid;
  gap: 1px;
  padding: 1px;
  background: rgba(217, 210, 197, 0.22);
  border: 1px solid rgba(217, 210, 197, 0.22);
}

.pd-line {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px 20px 24px;
  background: var(--ink);
  transition: background var(--dur) var(--ease);
}

.pd-line:hover {
  background: var(--ink-2);
}

.pd-line-idx {
  margin: 0;
  font-size: var(--step-2);
  letter-spacing: 0.16em;
  color: var(--cyan-soft);
}

.pd-line-name {
  margin: 0;
  font-size: var(--step-5);
  font-weight: 700;
  color: var(--card);
}

.pd-line-desc {
  margin: 0;
  font-size: var(--step-2);
  line-height: 1.85;
  color: rgba(247, 241, 230, 0.78);
}

.pd-line-for {
  margin: 4px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(217, 210, 197, 0.2);
  font-size: var(--step-2);
  line-height: 1.8;
  color: rgba(247, 241, 230, 0.68);
}

.pd-line-for-key {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 8px;
  background: rgba(242, 107, 43, 0.22);
  color: var(--orange-soft);
  font-size: var(--step-1);
  letter-spacing: 0.08em;
}

.pd-lines-media {
  margin: 30px 0 0;
  border: 1px solid rgba(143, 217, 214, 0.35);
}

.pd-lines-media img,
.pd-diff-media img,
.pd-scenes-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 版本差异对照 ---------- */

.pd-diff-media {
  margin: 0 0 26px;
  border: 1px solid var(--ink-2);
}

.pd-diff {
  border: 1px solid var(--line);
  background: var(--line);
}

.pd-diff-head {
  display: none;
}

.pd-diff-row {
  display: grid;
  gap: 8px;
  padding: 16px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
}

.pd-diff-row:last-child {
  border-bottom: none;
}

.pd-diff-key {
  margin: 0;
  font-size: var(--step-3);
  font-weight: 700;
  color: var(--ink);
}

.pd-diff-old,
.pd-diff-new {
  position: relative;
  margin: 0;
  padding-left: 14px;
  font-size: var(--step-2);
  line-height: 1.75;
}

.pd-diff-old {
  color: rgba(60, 70, 84, 0.72);
}

.pd-diff-old::before,
.pd-diff-new::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.pd-diff-old::before { background: var(--line); }
.pd-diff-new::before { background: var(--orange); }

.pd-diff-new {
  color: var(--ink-2);
  font-weight: 500;
}

.pd-diff-note {
  margin: 20px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--cyan);
  background: rgba(143, 217, 214, 0.16);
  font-size: var(--step-2);
  line-height: 1.85;
  color: var(--ink-2);
}

/* ---------- 场景适配 ---------- */

.pd-scene-grid {
  display: grid;
  gap: 16px;
}

.pd-scene {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 20px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.pd-scene:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 22px rgba(11, 31, 51, 0.12);
}

.pd-scene-idx {
  margin: 0;
  font-size: var(--step-1);
  letter-spacing: 0.18em;
  color: var(--orange);
}

.pd-scene-name {
  margin: 0;
  font-size: var(--step-5);
  font-weight: 700;
  color: var(--ink);
}

.pd-scene-step {
  margin: 0;
  font-size: var(--step-2);
  line-height: 1.8;
  color: var(--graphite);
}

.pd-scene-key {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 8px;
  background: rgba(15, 163, 163, 0.14);
  color: var(--ink-2);
  font-size: var(--step-1);
  letter-spacing: 0.08em;
}

.pd-scenes-media {
  margin: 28px 0 0;
  border: 1px solid var(--line);
}

/* ---------- 入口区 ---------- */

.pd-cta-grid {
  display: grid;
  gap: 14px;
}

.pd-cta {
  position: relative;
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 20px 18px 22px;
  border: 1px solid rgba(217, 210, 197, 0.3);
  border-left: 3px solid var(--orange);
  background: rgba(18, 49, 79, 0.5);
  text-decoration: none;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.pd-cta:hover {
  background: var(--ink-2);
  border-left-color: var(--cyan);
}

.pd-cta-idx {
  font-size: var(--step-1);
  letter-spacing: 0.16em;
  color: var(--cyan-soft);
}

.pd-cta-name {
  font-size: var(--step-4);
  font-weight: 700;
  color: var(--card);
}

.pd-cta-desc {
  font-size: var(--step-2);
  line-height: 1.8;
  color: rgba(247, 241, 230, 0.72);
}

.pd-cta-go {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: var(--step-4);
  color: var(--orange-soft);
}

/* ---------- 图片说明 ---------- */

.page-products .media-caption {
  padding: 10px 4px 0;
  font-size: var(--step-1);
  letter-spacing: 0.04em;
  color: rgba(60, 70, 84, 0.7);
}

.pd-sec--lines .media-caption,
.pd-sec--cta .media-caption {
  color: rgba(247, 241, 230, 0.6);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .pd-hero {
    padding: 56px 0 64px;
  }

  .pd-hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .pd-sec {
    padding: 64px 0;
  }

  .pd-dim-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pd-line-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pd-scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pd-cta-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .pd-hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
    align-items: end;
    gap: 48px;
  }

  .pd-hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pd-mobile-grid {
    grid-template-columns: minmax(0, 400px) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }

  .pd-mobile-media {
    position: sticky;
    top: 130px;
  }

  .pd-line-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pd-diff-head,
  .pd-diff-row {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr) minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

  .pd-diff-head {
    padding: 12px 16px;
    background: var(--ink-2);
  }

  .pd-diff-head span {
    font-size: var(--step-1);
    letter-spacing: 0.16em;
    color: var(--paper);
  }

  .pd-diff-key,
  .pd-diff-old,
  .pd-diff-new {
    padding-left: 0;
  }

  .pd-diff-old::before,
  .pd-diff-new::before {
    display: none;
  }

  .pd-diff-container {
    border: 1px solid var(--line);
  }
}

@media (min-width: 1100px) {
  .pd-sec {
    padding: 76px 0;
  }

  .pd-dim-list {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .pd-scene-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .pd-cta-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
<<<END>>>