.page-products {
  --pp-rail-w: 236px;
  --pp-pad-top: clamp(44px, 6vw, 76px);
  background-color: var(--c-ink);
  color: var(--c-mist);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.85;
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  padding-block: 20px 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-lead);
}

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

.page-products .breadcrumb a:hover {
  color: var(--c-paper);
  border-bottom-color: var(--c-brand);
}

.page-products .breadcrumb-sep {
  margin-inline: 8px;
  color: var(--c-grid);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--c-grid);
}

.page-products .pp-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--c-grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--c-grid) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: 0.4;
  pointer-events: none;
}

.page-products .pp-hero::after {
  content: "";
  position: absolute;
  right: -6%;
  top: 18%;
  width: min(48vw, 420px);
  height: min(48vw, 420px);
  background: var(--c-brand);
  opacity: 0.14;
  pointer-events: none;
}

.page-products .pp-hero-inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(48px, 7vw, 96px) clamp(40px, 5vw, 72px);
}

.page-products .pp-hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin: 0 0 20px;
}

.page-products .pp-hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--c-paper);
  line-height: 0.95;
}

.page-products .pp-hl {
  position: relative;
  display: inline-block;
  color: var(--c-brand);
}

.page-products .pp-hl::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 0.1em;
  background: var(--c-brand-deep);
}

.page-products .pp-hero-lede {
  max-width: 38em;
  margin: clamp(24px, 3vw, 36px) 0 0;
  color: var(--c-mist);
}

.page-products .pp-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(32px, 4vw, 48px) 0 0;
  max-width: 720px;
  background: var(--c-grid);
  border: 1px solid var(--c-grid);
}

.page-products .pp-fact {
  background: var(--c-ink);
  padding: 16px 18px;
}

.page-products .pp-fact dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-lead);
  margin-bottom: 6px;
}

.page-products .pp-fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 500;
  line-height: 1.1;
  color: var(--c-paper);
}

.page-products .pp-hero-note {
  max-width: 38em;
  margin: 24px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-lead);
}

/* ---------- 主体布局 ---------- */
.page-products .pp-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding-block: var(--pp-pad-top) clamp(64px, 8vw, 112px);
}

/* ---------- 侧栏页签 ---------- */
.page-products .pp-rail-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-lead);
}

.page-products .pp-tabs {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: thin;
  border-bottom: 1px solid var(--c-grid);
  padding-bottom: 8px;
}

.page-products .pp-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: none;
  padding: 10px 14px;
  text-decoration: none;
  color: var(--c-mist);
  font-size: 14px;
  white-space: nowrap;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: background-color var(--dur-micro) var(--ease),
              color var(--dur-micro) var(--ease),
              border-color var(--dur-micro) var(--ease);
}

.page-products .pp-tab .num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-lead);
}

.page-products .pp-tab:hover {
  color: var(--c-paper);
  border-color: var(--c-grid);
  background: var(--c-hull);
}

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

.page-products .pp-rail-note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-lead);
}

.page-products .pp-rail-note a {
  color: var(--c-mist);
  text-decoration: none;
  border-bottom: 1px solid var(--c-brand);
}

.page-products .pp-rail-note a:hover {
  color: var(--c-paper);
}

/* ---------- 章节 ---------- */
.page-products .pp-section {
  padding-block: clamp(44px, 5vw, 72px);
  border-top: 1px solid var(--c-grid);
  scroll-margin-top: 120px;
}

.page-products .pp-section:first-child {
  border-top: 0;
  padding-top: clamp(16px, 2vw, 24px);
}

.page-products .pp-section-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 22px;
}

.page-products .pp-section-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--c-brand);
  border: 1px solid var(--c-grid);
  padding: 3px 8px;
  border-radius: 2px;
}

.page-products .section-title {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--c-paper);
  margin: 0;
  line-height: 1.2;
}

.page-products .pp-sub {
  margin: clamp(28px, 3vw, 40px) 0 12px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--c-paper);
}

.page-products .pp-p {
  max-width: 38em;
  margin: 0;
  color: var(--c-mist);
}

.page-products .pp-p--tight {
  margin-top: 20px;
}

.page-products .pp-p a,
.page-products .pp-list a {
  color: var(--c-paper);
  text-decoration: none;
  border-bottom: 1px solid var(--c-brand);
}

.page-products .pp-p a:hover,
.page-products .pp-list a:hover {
  border-bottom-color: var(--c-cyan);
}

.page-products .pp-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 13px;
  max-width: 42em;
}

.page-products .pp-list li {
  position: relative;
  padding-left: 22px;
  color: var(--c-mist);
}

.page-products .pp-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 8px;
  background: var(--c-brand);
}

.page-products .pp-list strong {
  color: var(--c-paper);
  font-weight: 500;
}

/* ---------- 图片 / 说明牌 ---------- */
.page-products .pp-figure {
  margin: clamp(26px, 3vw, 38px) 0 0;
}

.page-products .pp-figure-frame {
  position: relative;
  border: 1px solid var(--c-grid);
  background: var(--c-hull);
  overflow: hidden;
}

.page-products .pp-figure-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--c-grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--c-grid) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.22;
  pointer-events: none;
}

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

.page-products .pp-figure-cap {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-lead);
  max-width: 46em;
}

.page-products .pp-figure-tag {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-cyan);
  border: 1px solid var(--c-grid);
  padding: 2px 8px;
  border-radius: 2px;
}

/* ---------- 覆盖矩阵 ---------- */
.page-products .pp-matrix {
  margin-top: 28px;
  border: 1px solid var(--c-grid);
  border-bottom: 0;
  max-width: 720px;
}

.page-products .pp-matrix-row {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) minmax(0, 1fr);
  border-bottom: 1px solid var(--c-grid);
}

.page-products .pp-matrix-head {
  background: var(--c-hull);
}

.page-products .pp-matrix-cell {
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--c-mist);
  border-left: 1px solid var(--c-grid);
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.page-products .pp-matrix-cell:first-child {
  border-left: 0;
}

.page-products .pp-matrix-cell--label {
  color: var(--c-paper);
  font-size: 14px;
}

.page-products .pp-matrix-head .pp-matrix-cell {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-lead);
}

.page-products .pp-dot {
  flex: none;
  width: 8px;
  height: 8px;
  display: inline-block;
  border-radius: 50%;
}

.page-products .pp-dot--on {
  background: var(--c-cyan);
}

.page-products .pp-dot--part {
  background: var(--c-amber);
}

.page-products .pp-matrix-note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-lead);
  max-width: 46em;
}

/* ---------- 恢复步骤条 ---------- */
.page-products .pp-steps {
  list-style: none;
  margin: clamp(28px, 3vw, 40px) 0 0;
  padding: 0;
  counter-reset: none;
}

.page-products .pp-step {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 18px;
  padding-block: clamp(20px, 3vw, 34px);
  border-top: 1px solid var(--c-grid);
}

.page-products .pp-step:first-child {
  border-top: 0;
}

.page-products .pp-step-num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 500;
  line-height: 1;
  color: var(--c-cyan);
  padding-top: 4px;
  position: relative;
}

.page-products .pp-step:not(:last-child) .pp-step-num::after {
  content: "";
  position: absolute;
  left: 11px;
  top: 38px;
  bottom: -34px;
  width: 1px;
  background: var(--c-grid);
}

.page-products .pp-step--pending .pp-step-num {
  color: var(--c-amber);
}

.page-products .pp-step-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--c-paper);
}

.page-products .pp-step-body p {
  margin: 0;
  max-width: 38em;
  color: var(--c-mist);
}

/* ---------- 费用构成条 ---------- */
.page-products .pp-costbar {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin-top: 22px;
  max-width: 720px;
  background: var(--c-grid);
  border: 1px solid var(--c-grid);
}

.page-products .pp-costbar-seg {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 16px 18px;
}

.page-products .pp-costbar-seg--free {
  background: var(--c-hull);
  border-left: 3px solid var(--c-cyan);
}

.page-products .pp-costbar-seg--chain {
  background: var(--c-ink);
  border-left: 3px solid var(--c-amber);
}

.page-products .pp-costbar-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-lead);
}

.page-products .pp-costbar-text {
  color: var(--c-paper);
  font-size: 15px;
}

/* ---------- 表格 ---------- */
.page-products .pp-table-wrap {
  margin-top: clamp(26px, 3vw, 38px);
  border: 1px solid var(--c-grid);
  overflow-x: auto;
}

.page-products .pp-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-products .pp-table-cap {
  caption-side: top;
  text-align: left;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-lead);
  background: var(--c-hull);
  border-bottom: 1px solid var(--c-grid);
}

.page-products .pp-table th,
.page-products .pp-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--c-grid);
  vertical-align: top;
}

.page-products .pp-table thead th {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  font-weight: 500;
  color: var(--c-lead);
  background: var(--c-hull);
}

.page-products .pp-table tbody th {
  font-weight: 500;
  color: var(--c-paper);
}

.page-products .pp-table td {
  color: var(--c-mist);
}

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

.page-products .pp-table .num {
  font-family: var(--font-mono);
  font-size: 0.92em;
  color: var(--c-cyan);
}

/* ---------- 检查清单 ---------- */
.page-products .pp-checklist {
  list-style: none;
  margin: clamp(26px, 3vw, 38px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--c-grid);
  border: 1px solid var(--c-grid);
  max-width: 760px;
}

.page-products .pp-check {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 16px;
  background: var(--c-ink);
  padding: 18px 18px 18px 12px;
}

.page-products .pp-check-box {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--c-cyan);
  text-align: center;
  border-right: 1px solid var(--c-grid);
}

.page-products .pp-check-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--c-paper);
}

.page-products .pp-check-body p {
  margin: 0;
  font-size: 15px;
  max-width: 40em;
  color: var(--c-mist);
}

/* ---------- 收束 ---------- */
.page-products .pp-outro {
  margin-top: clamp(34px, 4vw, 52px);
  padding: 22px 24px;
  background: var(--c-hull);
  border-left: 3px solid var(--c-brand);
}

.page-products .pp-outro-text {
  margin: 0;
  max-width: 42em;
  color: var(--c-mist);
}

.page-products .pp-outro-text a {
  color: var(--c-paper);
  text-decoration: none;
  border-bottom: 1px solid var(--c-brand);
}

.page-products .pp-outro-text a:hover {
  border-bottom-color: var(--c-cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .pp-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pp-costbar {
    flex-direction: row;
  }

  .page-products .pp-costbar-seg {
    flex: 1 1 50%;
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }
}

@media (min-width: 1000px) {
  .page-products .pp-layout {
    grid-template-columns: var(--pp-rail-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 76px);
    align-items: start;
  }

  .page-products .pp-rail-inner {
    position: sticky;
    top: 128px;
  }

  .page-products .pp-tabs {
    flex-direction: column;
    gap: 2px;
    border-bottom: 0;
    border-left: 1px solid var(--c-grid);
    padding: 0 0 0 12px;
    overflow: visible;
  }

  .page-products .pp-tab {
    width: 100%;
    border-radius: 0;
    padding: 10px 12px;
  }

  .page-products .pp-tab:hover {
    background: var(--c-paper);
    color: var(--c-ink);
    border-color: var(--c-paper);
  }

  .page-products .pp-tab:hover .num {
    color: var(--c-brand);
  }

  .page-products .pp-step {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 26px;
  }
}

@media (min-width: 1320px) {
  .page-products .pp-hero-inner {
    padding-right: 8%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-tab,
  .page-products .breadcrumb a {
    transition: none;
  }
}