.page-products {
  display: block;
}

.page-products img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ============ 首屏：错位色块 ============ */
.page-products .pp-hero {
  position: relative;
  overflow: hidden;
  padding: 1.5rem 0 2.25rem;
  border-bottom: 1px solid var(--hair-soft);
}

.page-products .pp-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -40%;
  width: 95%;
  height: 175%;
  background:
    linear-gradient(140deg, rgba(216, 168, 78, 0.22), rgba(216, 168, 78, 0) 58%),
    repeating-linear-gradient(118deg, rgba(55, 191, 174, 0.16) 0 1px, rgba(55, 191, 174, 0) 1px 22px);
  clip-path: polygon(26% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-products .pp-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 38%;
  height: 2px;
  background: linear-gradient(90deg, var(--coral), rgba(255, 107, 74, 0));
}

.page-products .pp-hero__inner {
  position: relative;
  z-index: 1;
}

.page-products .pp-hero__text {
  max-width: 68ch;
}

.page-products .pp-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.95rem, 7vw, 4rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0.5rem 0 0.75rem;
  max-width: 22ch;
}

.page-products .pp-hero .lede {
  color: var(--mist);
  font-size: 1rem;
  line-height: 1.8;
  max-width: 60ch;
  margin: 0;
}

.page-products .pp-hero__facts {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 1rem 0 0;
  border-top: 1px solid var(--hair-soft);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem 1rem;
}

.page-products .pp-fact {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.page-products .pp-fact__k {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-products .pp-fact__v {
  font-family: var(--font-display);
  font-size: 1.3rem;
  line-height: 1.2;
  color: var(--gold);
}

/* ============ 段落索引条 ============ */
.page-products .pp-seg {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  background: rgba(6, 33, 28, 0.94);
  border-top: 1px solid var(--hair-soft);
  border-bottom: 1px solid var(--hair-soft);
  border-left: 3px solid var(--gold);
}

.page-products .pp-seg__inner {
  overflow-x: auto;
  padding: 0.35rem 0;
}

.page-products .pp-seg__list {
  list-style: none;
  display: flex;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
}

.page-products .pp-seg__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.8rem;
  white-space: nowrap;
  font-size: 0.9rem;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 2px;
  transition: color 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-products .pp-seg__link .index {
  color: var(--gold);
  font-size: 0.68rem;
}

.page-products .pp-seg__link:hover,
.page-products .pp-seg__link:focus-visible {
  color: var(--paper);
  border-color: var(--hair);
  background: var(--glass);
}

.page-products .pp-seg__link:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}

.page-products .pp-seg__link[aria-current] {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink-900);
}

.page-products .pp-seg__link[aria-current] .index {
  color: var(--ink-800);
}

/* ============ 章节 ============ */
.page-products .pp-seg-block {
  padding: 2.25rem 0 1.5rem;
  scroll-margin-top: calc(var(--header-h) + 64px);
}

.page-products .pp-seg-block + .pp-seg-block {
  border-top: 1px solid var(--hair-soft);
}

.page-products .pp-seg-block .section-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 5vw, 2.4rem);
  line-height: 1.22;
  color: var(--paper);
  margin: 0.35rem 0 0.6rem;
  max-width: 26ch;
}

.page-products .pp-seg-block .lede {
  color: var(--mist);
  font-size: 1rem;
  line-height: 1.8;
  max-width: 64ch;
  margin: 0;
}

.page-products .pp-band {
  margin: 1.5rem 0 1.75rem;
}

.page-products .pp-band .img-frame {
  border: 1px solid var(--hair-soft);
}

.page-products .pp-band .img-frame__cap {
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-products .pp-band--narrow {
  margin-top: 2rem;
  margin-bottom: 1.25rem;
}

.page-products .pp-inline-link {
  font-size: 0.95rem;
  color: var(--mist);
  margin: 0.75rem 0 0;
}

/* ============ 注册步骤流 ============ */
.page-products .pp-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-products .pp-step {
  position: relative;
  display: grid;
  grid-template-columns: 4.25rem minmax(0, 1fr);
  gap: 0.75rem;
  padding: 1.1rem 0;
  border-top: 1px solid var(--hair-soft);
}

.page-products .pp-step__no {
  position: relative;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--gold);
  padding-top: 0.9rem;
}

.page-products .pp-step__no::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0.28rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(216, 168, 78, 0.14);
}

.page-products .pp-step__body {
  background: var(--ink-800);
  border: 1px solid var(--hair-soft);
  padding: 1rem 1.1rem;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-products .pp-step__body:hover {
  border-color: var(--gold);
  box-shadow: var(--shadow-lift);
}

.page-products .pp-step__body h3 {
  font-family: var(--font-display);
  font-size: 1.18rem;
  line-height: 1.35;
  color: var(--paper);
  margin: 0 0 0.45rem;
}

.page-products .pp-step__body p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .pp-step__hint {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
  margin-top: 0.65rem !important;
  padding-top: 0.65rem;
  border-top: 1px dashed var(--hair-soft);
  color: var(--paper) !important;
  font-size: 0.9rem !important;
}

/* ============ 验证准备清单 ============ */
.page-products .pp-verify {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.page-products .pp-checklist {
  display: grid;
  gap: 1rem;
}

.page-products .pp-check-group {
  border: 1px solid var(--hair-soft);
  background: var(--ink-800);
  padding: 1rem;
  border-radius: 2px;
}

.page-products .pp-check-group__head {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--hair-soft);
}

.page-products .pp-check-group__head h3 {
  font-family: var(--font-display);
  font-size: 1.12rem;
  color: var(--paper);
  margin: 0;
}

.page-products .pp-check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-products .pp-check {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--hair-soft);
  background: rgba(6, 33, 28, 0.6);
  border-radius: 2px;
  font-size: 0.92rem;
  line-height: 1.62;
  color: var(--mist);
  cursor: pointer;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-products .pp-check input {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex: none;
  width: 15px;
  height: 15px;
  margin: 0.28rem 0 0;
  border: 1px solid var(--mist);
  background: transparent;
  border-radius: 1px;
  cursor: pointer;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-products .pp-check input:checked {
  background: var(--gold);
  border-color: var(--gold);
}

.page-products .pp-check input:checked::after {
  content: "";
  position: absolute;
  inset: 3px;
  background: var(--ink-900);
  clip-path: polygon(0 45%, 38% 78%, 100% 0, 100% 22%, 38% 100%, 0 66%);
}

.page-products .pp-check input:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}

.page-products .pp-check:has(input:checked) {
  border-color: var(--gold);
  background: rgba(216, 168, 78, 0.1);
  color: var(--paper);
}

.page-products .pp-verify__aside .img-frame {
  border: 1px solid var(--hair);
}

.page-products .pp-verify__note {
  margin: 0.85rem 0 0.5rem;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--mist);
}

/* ============ 区域矩阵 ============ */
.page-products .pp-matrix-shell {
  position: relative;
  margin-top: 1.5rem;
  padding: 0.9rem;
  border: 1px solid var(--hair-soft);
  background: var(--ink-800);
  overflow: hidden;
}

.page-products .pp-matrix__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  filter: saturate(0.5) contrast(1.1);
  pointer-events: none;
}

.page-products .pp-matrix {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.page-products .pp-mx {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.75rem;
  border: 1px solid var(--hair-soft);
  background: rgba(6, 33, 28, 0.74);
  color: var(--paper);
  text-decoration: none;
  border-radius: 2px;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-products .pp-mx__code {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-products .pp-mx__name {
  font-size: 0.95rem;
  line-height: 1.4;
}

.page-products .pp-mx__batch {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  color: var(--data);
}

.page-products .pp-mx:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}

.page-products .pp-matrix__note {
  margin: 0.85rem 0 0;
  color: var(--mist);
}

.page-products .pp-mx-list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-products .pp-mx-item {
  padding: 0.9rem 1rem;
  border: 1px solid var(--hair-soft);
  border-left: 2px solid var(--data);
  background: var(--ink-800);
  border-radius: 2px;
  scroll-margin-top: calc(var(--header-h) + 64px);
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-products .pp-mx-item:target {
  border-color: var(--gold);
  background: rgba(216, 168, 78, 0.1);
}

.page-products .pp-mx-item__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
}

.page-products .pp-mx-item p {
  margin: 0.3rem 0 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .pp-mx-item p.pp-mx-item__scene {
  color: var(--paper);
}

/* ============ 选型维度对照 ============ */
.page-products .pp-dim {
  display: grid;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.page-products .pp-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--hair-soft);
  background: var(--ink-800);
}

.page-products .pp-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.page-products .pp-table th,
.page-products .pp-table td {
  text-align: left;
  vertical-align: top;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--hair-soft);
  line-height: 1.7;
  color: var(--mist);
}

.page-products .pp-table thead th {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--gold);
  background: rgba(6, 33, 28, 0.85);
  white-space: nowrap;
}

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

.page-products .pp-table td:first-child {
  color: var(--paper);
  white-space: nowrap;
}

.page-products .pp-dim__aside {
  border: 1px solid var(--hair-soft);
  background: var(--ink-800);
  padding: 0.9rem;
}

.page-products .pp-dim__aside .img-frame {
  border: 1px solid var(--hair-soft);
}

.page-products .pp-dim__note {
  margin: 0.85rem 0 0;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--mist);
}

/* ============ 交付节奏 ============ */
.page-products .pp-cadence {
  position: relative;
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0 0 0 1.5rem;
  display: grid;
  gap: 0.9rem;
}

.page-products .pp-cadence::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold), var(--data));
}

.page-products .pp-stop {
  position: relative;
  padding: 0.9rem 1rem;
  border: 1px solid var(--hair-soft);
  background: var(--ink-800);
  border-radius: 2px;
}

.page-products .pp-stop::before {
  content: "";
  position: absolute;
  left: -1.5rem;
  top: 1.3rem;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(216, 168, 78, 0.14);
}

.page-products .pp-stop h3 {
  font-family: var(--font-display);
  font-size: 1.12rem;
  color: var(--paper);
  margin: 0.35rem 0 0.4rem;
}

.page-products .pp-stop p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-products .pp-stop__cover {
  margin-top: 0.5rem !important;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--data);
}

/* ============ 误用提示 ============ */
.page-products .pp-misuse {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-products .pp-misuse__item {
  border: 1px solid var(--hair-soft);
  border-left: 3px solid var(--coral);
  background: var(--ink-800);
  padding: 1rem 1.1rem;
  border-radius: 2px;
}

.page-products .pp-misuse__item h3 {
  font-family: var(--font-display);
  font-size: 1.12rem;
  color: var(--paper);
  margin: 0 0 0.45rem;
}

.page-products .pp-misuse__item p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-products .pp-misuse__fix {
  margin-top: 0.6rem !important;
  padding-top: 0.6rem;
  border-top: 1px dashed var(--hair-soft);
}

.page-products .pp-misuse__fix strong {
  color: var(--data);
  font-weight: 600;
}

/* ============ 下一步 ============ */
.page-products .pp-cta {
  position: relative;
  margin: 2.25rem 0 3rem;
  padding: 1.5rem 1.15rem;
  border: 1px solid var(--hair);
  background: linear-gradient(120deg, rgba(216, 168, 78, 0.1), rgba(55, 191, 174, 0.06));
}

.page-products .pp-cta::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 26px;
  height: 26px;
  background: var(--gold);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}

.page-products .pp-cta__title {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 4.5vw, 1.9rem);
  color: var(--paper) !important;
  margin: 0.4rem 0 1rem !important;
  max-width: 24ch;
}

.page-products .pp-cta__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.page-products .pp-copy {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--hair-soft);
}

.page-products .pp-copy__addr {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  color: var(--paper);
  word-break: break-all;
}

.page-products .pp-cta__note {
  margin: 0.75rem 0 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--mist);
}

/* ============ 断点 ============ */
@media (min-width: 720px) {
  .page-products .pp-hero {
    padding: 2.5rem 0 3rem;
  }

  .page-products .pp-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.75rem 1.25rem;
  }

  .page-products .pp-seg-block {
    padding: 3rem 0 2rem;
  }

  .page-products .pp-step {
    grid-template-columns: 5.5rem minmax(0, 1fr);
    gap: 1rem;
    padding: 1.25rem 0;
  }

  .page-products .pp-step:nth-child(odd) .pp-step__body {
    margin-right: 4rem;
  }

  .page-products .pp-step:nth-child(even) .pp-step__body {
    margin-left: 3rem;
  }

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

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

  .page-products .pp-matrix {
    gap: 0.75rem;
  }
}

@media (min-width: 900px) {
  .page-products .pp-matrix {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pp-cadence {
    padding: 0.75rem 0 1.75rem;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
  }

  .page-products .pp-cadence::before {
    left: 0;
    right: 0;
    top: 0;
    bottom: auto;
    width: auto;
    height: 1px;
    background: linear-gradient(90deg, var(--gold), var(--data));
  }

  .page-products .pp-stop::before {
    left: 1.1rem;
    top: -5px;
  }

  .page-products .pp-stop:nth-child(even) {
    transform: translateY(1.25rem);
  }

  .page-products .pp-misuse {
    gap: 1.25rem;
  }

  .page-products .pp-misuse__item:nth-child(2) {
    margin-left: 2.5rem;
  }

  .page-products .pp-misuse__item:nth-child(3) {
    margin-left: 5rem;
  }
}

@media (hover: hover) and (min-width: 900px) {
  .page-products .pp-matrix:has(.pp-mx:hover) .pp-mx {
    border-color: rgba(166, 182, 177, 0.12);
  }

  .page-products .pp-matrix:has(.pp-mx:nth-child(-n+4):hover) .pp-mx:nth-child(-n+4),
  .page-products .pp-matrix:has(.pp-mx:nth-child(n+5):nth-child(-n+8):hover) .pp-mx:nth-child(n+5):nth-child(-n+8),
  .page-products .pp-matrix:has(.pp-mx:nth-child(n+9):hover) .pp-mx:nth-child(n+9) {
    background: rgba(55, 191, 174, 0.1);
  }

  .page-products .pp-matrix:has(.pp-mx:nth-child(4n+1):hover) .pp-mx:nth-child(4n+1),
  .page-products .pp-matrix:has(.pp-mx:nth-child(4n+2):hover) .pp-mx:nth-child(4n+2),
  .page-products .pp-matrix:has(.pp-mx:nth-child(4n+3):hover) .pp-mx:nth-child(4n+3),
  .page-products .pp-matrix:has(.pp-mx:nth-child(4n+4):hover) .pp-mx:nth-child(4n+4) {
    border-color: var(--gold);
    background: rgba(216, 168, 78, 0.1);
  }

  .page-products .pp-matrix .pp-mx:hover {
    outline: 2px solid var(--gold);
    outline-offset: -2px;
    background: rgba(216, 168, 78, 0.2);
  }

  .page-products .pp-mx:hover {
    transform: translateY(-2px);
  }
}

@media (min-width: 980px) {
  .page-products .pp-verify {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.8fr);
    align-items: start;
    gap: 2rem;
  }

  .page-products .pp-dim {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.55fr);
    align-items: start;
    gap: 2rem;
  }

  .page-products .pp-cta {
    padding: 2rem 1.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-seg__link,
  .page-products .pp-mx,
  .page-products .pp-step__body,
  .page-products .pp-check,
  .page-products .pp-mx-item {
    transition: none;
  }

  .page-products .pp-stop:nth-child(even) {
    transform: none;
  }

  .page-products .pp-mx:hover {
    transform: none;
  }
}