.page-products {
  --pp-gap: clamp(16px, 2.6vw, 26px);
}

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

.page-products .media-frame img {
  width: 100%;
  object-fit: cover;
}

.page-products .breadcrumb {
  padding: 18px 0 4px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--stone);
}

.page-products .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
}

.page-products .breadcrumb a:hover {
  color: var(--cinnabar-deep);
}

/* ---------- 首屏 ---------- */

.page-products .pp-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4.5vw, 46px) 0 clamp(28px, 5vw, 58px);
}

.page-products .pp-hero::after {
  content: "";
  position: absolute;
  z-index: 0;
  right: -16vw;
  top: 6%;
  width: min(78vw, 700px);
  height: 82%;
  background: linear-gradient(165deg, rgba(74, 110, 130, 0.22), rgba(74, 110, 130, 0) 72%);
  clip-path: polygon(24% 0, 100% 14%, 84% 100%, 0 82%);
  pointer-events: none;
}

.page-products .pp-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(22px, 4vw, 34px);
  align-items: center;
}

.page-products .pp-hero__media {
  position: relative;
  order: 2;
}

.page-products .pp-hero__frame {
  transform: rotate(-1.6deg);
  border: 1px solid var(--line-strong);
  background: var(--paper-white);
  box-shadow: var(--shadow-sheet);
  padding: 9px;
}

.page-products .pp-hero__sticker {
  position: absolute;
  left: 6%;
  bottom: -13px;
  background: var(--paper-white);
  border: 1px solid var(--line-strong);
  color: var(--ochre);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.page-products .pp-hero__body {
  order: 1;
  display: grid;
  gap: 0;
}

.page-products .pp-hero h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 6.6vw, 3.5rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0.42em 0 0.5em;
  max-width: 14em;
}

.page-products .pp-hero__lead {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ink);
  max-width: 38em;
  margin: 0;
}

.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-products .pp-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 14px;
  margin: 26px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-products .pp-facts dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--stone);
}

.page-products .pp-facts dd {
  margin: 5px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--ochre);
  letter-spacing: -0.01em;
}

@media (min-width: 880px) {
  .page-products .pp-hero__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: clamp(30px, 4.5vw, 64px);
  }

  .page-products .pp-hero__media {
    order: 1;
  }

  .page-products .pp-hero__body {
    order: 2;
  }
}

/* ---------- 章节头 ---------- */

.page-products .pp-head {
  max-width: 62ch;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-products .pp-head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 4.2vw, 2.3rem);
  line-height: 1.22;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0.36em 0 0.5em;
}

.page-products .pp-head .prose {
  margin: 0;
}

/* ---------- 对照表 ---------- */

.page-products .pp-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line-strong);
  background: var(--paper-white);
  box-shadow: var(--shadow-sheet);
}

.page-products .pp-table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  font-size: 0.94rem;
}

.page-products .pp-table caption {
  caption-side: top;
  text-align: left;
  padding: 14px 18px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--stone);
  border-bottom: 1px solid var(--line);
}

.page-products .pp-table th,
.page-products .pp-table td {
  padding: 14px 18px;
  text-align: left;
  vertical-align: top;
}

.page-products .pp-table thead th {
  font-size: 11px;
  letter-spacing: 0.16em;
  font-weight: 600;
  color: var(--stone);
  border-bottom: 1px solid var(--line-strong);
  white-space: nowrap;
}

.page-products .pp-table tbody tr {
  border-top: 1px solid var(--line);
}

.page-products .pp-table tbody tr:nth-child(even) {
  background: rgba(217, 165, 123, 0.17);
}

.page-products .pp-table tbody tr:hover {
  background: rgba(169, 194, 207, 0.26);
}

.page-products .pp-table__no {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--ochre);
  letter-spacing: 0.06em;
  width: 66px;
  white-space: nowrap;
}

.page-products .pp-table tbody td:nth-child(2) {
  font-weight: 600;
  color: var(--ink);
}

@media (max-width: 719px) {
  .page-products .pp-table-wrap {
    overflow: visible;
    border: 0;
    background: transparent;
    box-shadow: none;
  }

  .page-products .pp-table {
    min-width: 0;
    display: block;
  }

  .page-products .pp-table caption {
    padding: 0 0 10px;
    border: 0;
  }

  .page-products .pp-table thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

  .page-products .pp-table tbody {
    display: grid;
    gap: 12px;
  }

  .page-products .pp-table tbody tr {
    display: block;
    padding: 14px 16px;
    border: 1px solid var(--line-strong);
    background: var(--paper-white);
    box-shadow: var(--shadow-sheet);
  }

  .page-products .pp-table tbody tr:nth-child(even) {
    background: var(--paper-white);
  }

  .page-products .pp-table tbody th.pp-table__no {
    display: block;
    width: auto;
    padding: 0 0 6px;
    font-size: 1.15rem;
  }

  .page-products .pp-table tbody td {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 16px;
    padding: 8px 0;
    border-top: 1px dashed var(--line);
    font-size: 0.92rem;
  }

  .page-products .pp-table tbody td::before {
    content: attr(data-label);
    flex: 0 0 auto;
    font-size: 11px;
    letter-spacing: 0.14em;
    color: var(--stone);
  }
}

/* ---------- 方案横带 ---------- */

.page-products .pp-band {
  position: relative;
  margin-bottom: var(--pp-gap);
  background: var(--paper-white);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-sheet);
  transition: transform 0.22s var(--ease);
}

.page-products .pp-band::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -1px;
  height: 1px;
  background: var(--ochre);
  transform: rotate(-0.5deg);
  transform-origin: 0 50%;
  opacity: 0.6;
}

@media (hover: hover) {
  .page-products .pp-band[open]:hover {
    transform: translateY(-3px);
  }
}

.page-products .pp-band__summary {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 12px;
  padding: 16px clamp(14px, 3vw, 24px);
  cursor: pointer;
  list-style: none;
  background: linear-gradient(90deg, rgba(169, 194, 207, 0.24), rgba(169, 194, 207, 0) 62%);
  transition: background 0.2s var(--ease);
}

.page-products .pp-band__summary::-webkit-details-marker {
  display: none;
}

.page-products .pp-band__summary:hover {
  background: linear-gradient(90deg, rgba(169, 194, 207, 0.4), rgba(169, 194, 207, 0) 62%);
}

.page-products .pp-band__summary:focus-visible {
  outline: 2px solid var(--cinnabar);
  outline-offset: -3px;
}

.page-products .pp-band__no {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--paper-white);
  background: var(--ochre);
  padding: 6px 10px 7px;
}

.page-products .pp-band__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.02rem, 2.8vw, 1.28rem);
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-products .pp-band__meta {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--stone);
  white-space: nowrap;
}

.page-products .pp-band__chev {
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--mist);
  border-bottom: 2px solid var(--mist);
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.24s var(--ease);
}

.page-products .pp-band[open] .pp-band__chev {
  transform: rotate(-135deg) translateY(-2px);
}

.page-products .pp-band__body {
  display: grid;
  gap: var(--pp-gap);
  padding: clamp(16px, 3vw, 26px);
  border-top: 1px solid var(--line);
}

.page-products .pp-band__main {
  min-width: 0;
}

.page-products .pp-band__lead {
  margin: 0 0 20px;
  max-width: 42em;
  color: var(--ink);
}

.page-products .pp-band__foot {
  margin: 20px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--ochre-soft);
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--stone);
}

.page-products .pp-band__aside {
  display: grid;
  gap: 8px;
  align-content: start;
  min-width: 0;
}

@media (min-width: 880px) {
  .page-products .pp-band__body {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.8fr);
    gap: clamp(22px, 3.4vw, 40px);
  }
}

@media (max-width: 559px) {
  .page-products .pp-band__summary {
    grid-template-columns: auto 1fr auto;
    grid-template-areas:
      "no title chev"
      "meta meta meta";
    row-gap: 8px;
  }

  .page-products .pp-band__no {
    grid-area: no;
  }

  .page-products .pp-band__title {
    grid-area: title;
  }

  .page-products .pp-band__chev {
    grid-area: chev;
  }

  .page-products .pp-band__meta {
    grid-area: meta;
    padding-left: 2px;
  }
}

/* ---------- 步骤行进条 ---------- */

.page-products .pp-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-products .pp-step {
  position: relative;
  padding-left: 50px;
  min-height: 36px;
}

.page-products .pp-step p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--ink);
  max-width: 34em;
}

.page-products .pp-step__no {
  position: absolute;
  left: 0;
  top: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--mist);
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-products .pp-step::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 38px;
  bottom: -22px;
  width: 1px;
  background: var(--line-strong);
}

.page-products .pp-step:last-child::before {
  display: none;
}

@media (min-width: 900px) {
  .page-products .pp-steps {
    grid-template-columns: repeat(auto-fit, minmax(168px, 1fr));
    gap: 0;
  }

  .page-products .pp-step {
    padding: 56px 20px 0 0;
    min-height: 0;
  }

  .page-products .pp-step__no {
    top: 0;
  }

  .page-products .pp-step p {
    font-size: 0.9rem;
    line-height: 1.65;
  }

  .page-products .pp-step::before {
    left: 36px;
    right: 0;
    top: 17px;
    bottom: auto;
    width: auto;
    height: 1px;
  }

  .page-products .pp-step:last-child::before {
    display: block;
    right: 12px;
  }
}

/* ---------- L3 / L4 并排 ---------- */

.page-products .pp-pair {
  margin-bottom: var(--pp-gap);
}

.page-products .pp-pair__media {
  margin-bottom: var(--pp-gap);
}

.page-products .pp-pair__grid {
  display: grid;
  gap: var(--pp-gap);
}

.page-products .pp-pair__grid .pp-band {
  margin-bottom: 0;
}

.page-products .pp-pair__grid .pp-band__body {
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 860px) {
  .page-products .pp-pair__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
}

/* ---------- L5 分段标签 ---------- */

.page-products .pp-tabs {
  margin-top: 4px;
}

.page-products .pp-tabs .panel {
  padding-top: 18px;
}

.page-products .pp-tabs .tablist {
  border-bottom: 1px solid var(--line-strong);
}

/* ---------- 自查 ---------- */

.page-products .pp-checks {
  display: grid;
  gap: 14px;
}

.page-products .pp-check {
  background: var(--paper-white);
  border: 1px solid var(--line-strong);
  border-top: 3px solid var(--mist);
  padding: 18px clamp(14px, 2.6vw, 20px);
  box-shadow: var(--shadow-sheet);
}

.page-products .pp-check__no {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.7rem;
  line-height: 1;
  color: var(--mist-soft);
  letter-spacing: 0.02em;
}

.page-products .pp-check h3 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.08rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.page-products .pp-check p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--stone);
}

@media (min-width: 760px) {
  .page-products .pp-checks {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-products .pp-help__foot {
  margin-top: 24px;
  padding: 16px clamp(14px, 3vw, 24px);
  background: rgba(74, 110, 130, 0.12);
  border-left: 4px solid var(--mist);
}

.page-products .pp-help__foot p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--ink);
}

.page-products .pp-help__foot a {
  color: var(--cinnabar-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .pp-help__foot a:hover {
  color: var(--ochre);
}

/* ---------- 延伸入口 ---------- */

.page-products .pp-more__inner {
  display: grid;
  gap: 22px;
  padding-top: clamp(22px, 3.4vw, 34px);
  border-top: 1px solid var(--line-strong);
}

.page-products .pp-more__lead h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.32rem, 3.6vw, 1.9rem);
  line-height: 1.24;
  letter-spacing: -0.015em;
  color: var(--ink);
  margin: 0.36em 0 0.6em;
}

.page-products .pp-more__lead p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.85;
  color: var(--stone);
  max-width: 34em;
}

.page-products .pp-more__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .pp-more__list a {
  display: block;
  padding: 14px 16px;
  background: var(--paper-white);
  border: 1px solid var(--line-strong);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink);
  text-decoration: none;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-products .pp-more__list a span {
  display: block;
  margin-top: 5px;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.85rem;
  letter-spacing: 0;
  color: var(--stone);
}

.page-products .pp-more__list a:hover {
  transform: translateX(5px);
  border-color: var(--ochre);
}

@media (min-width: 880px) {
  .page-products .pp-more__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(30px, 4vw, 56px);
    align-items: start;
  }
}

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

  .page-products .pp-band[open]:hover,
  .page-products .pp-more__list a:hover {
    transform: none;
  }
}