.page-products {
  --pp-ink-soft: var(--slate);
  --pp-hair: var(--slate-100);
}

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

/* ---------- 页头 ---------- */
.page-products .crumb {
  margin: 0 0 26px;
}

.page-products .pp-head {
  padding-bottom: 44px;
  border-bottom: var(--line);
}

.page-products .pp-head .page-title {
  max-width: 20ch;
  margin: 0;
}

.page-products .pp-head .lede {
  max-width: 44ch;
  margin: 20px 0 0;
}

.page-products .pp-head-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
}

/* ---------- 通用小节文字 ---------- */
.page-products .pp-lede {
  max-width: 42em;
  margin: 0 0 4px;
  color: var(--pp-ink-soft);
}

/* ---------- 图版 ---------- */
.page-products .plate {
  margin: 0;
}

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

.page-products .plate-caption {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .pp-plate-top {
  margin-top: 32px;
}

.page-products .pp-plate-bottom {
  margin-top: 40px;
}

/* ---------- 01 三种困局 ---------- */
.page-products .pp-problems {
  margin-top: 36px;
}

.page-products .pp-problem {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-products .pp-problem-num {
  margin: 0;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--cinnabar);
}

.page-products .pp-problem .card-title {
  margin: 0;
}

.page-products .pp-problem p:last-child {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pp-ink-soft);
}

/* ---------- 02 栏目索引图 ---------- */
.page-products .pp-indexmap {
  margin-top: 32px;
  padding: 22px 20px 18px;
  border: var(--line);
  background: linear-gradient(180deg, var(--paper-warm) 0%, var(--paper) 78%);
  box-shadow: var(--shade);
  overflow-x: auto;
}

.page-products .pp-indexmap svg {
  display: block;
  width: 100%;
  min-width: 560px;
  height: auto;
}

.page-products .pp-indexmap .ix-node rect {
  fill: var(--paper);
  stroke: var(--slate-100);
  stroke-width: 1;
  transition: fill .16s var(--ease), stroke .16s var(--ease);
}

.page-products .pp-indexmap .ix-node:hover rect {
  fill: var(--cinnabar-soft);
  stroke: var(--cinnabar);
}

.page-products .pp-indexmap .ix-node--key rect {
  fill: var(--cinnabar-soft);
  stroke: var(--cinnabar);
  stroke-width: 2;
}

.page-products .pp-indexmap .ix-node--key:hover rect {
  fill: var(--cinnabar-soft);
  stroke: var(--cinnabar);
}

.page-products .pp-indexmap .ix-num {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .06em;
  fill: var(--muted);
}

.page-products .pp-indexmap .ix-node--key .ix-num {
  fill: var(--cinnabar);
}

.page-products .pp-indexmap .ix-name {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  fill: var(--ink);
}

.page-products .pp-indexmap .ix-note {
  font-family: var(--sans);
  font-size: 12px;
  fill: var(--slate);
}

.page-products .pp-columns-foot {
  margin-top: 44px;
  align-items: start;
}

.page-products .pp-columns-foot h3 {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
}

.page-products .pp-columns-foot p {
  margin: 0 0 14px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pp-ink-soft);
}

.page-products .pp-columns-foot p:last-child {
  margin-bottom: 0;
}

/* ---------- 03 三档服务 ---------- */
.page-products .pp-tier {
  position: relative;
  margin-top: 34px;
}

.page-products .pp-tier-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.page-products .pp-tier-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.page-products .pp-tier-tab {
  padding: 11px 20px;
  border: var(--line);
  background: var(--paper-warm);
  color: var(--slate);
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color .16s var(--ease), color .16s var(--ease),
    border-color .16s var(--ease), transform .16s var(--ease);
}

.page-products .pp-tier-tab:hover {
  transform: translateY(-2px);
  border-color: var(--slate);
}

.page-products #pp-tier-a:checked ~ .pp-tier-tabs label[for="pp-tier-a"],
.page-products #pp-tier-b:checked ~ .pp-tier-tabs label[for="pp-tier-b"],
.page-products #pp-tier-c:checked ~ .pp-tier-tabs label[for="pp-tier-c"] {
  background: var(--cinnabar);
  border-color: var(--cinnabar);
  color: var(--paper);
}

.page-products #pp-tier-a:focus-visible ~ .pp-tier-tabs label[for="pp-tier-a"],
.page-products #pp-tier-b:focus-visible ~ .pp-tier-tabs label[for="pp-tier-b"],
.page-products #pp-tier-c:focus-visible ~ .pp-tier-tabs label[for="pp-tier-c"] {
  outline: 2px solid var(--cinnabar);
  outline-offset: 2px;
}

.page-products .pp-tier-panel {
  display: none;
  padding: 26px 28px;
  border: var(--line);
  background: var(--paper-warm);
  box-shadow: var(--shade);
}

.page-products #pp-tier-a:checked ~ .pp-tier-panels .pp-tier-panel--a,
.page-products #pp-tier-b:checked ~ .pp-tier-panels .pp-tier-panel--b,
.page-products #pp-tier-c:checked ~ .pp-tier-panels .pp-tier-panel--c {
  display: block;
  animation: pp-panel-in .18s var(--ease) both;
}

@keyframes pp-panel-in {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: none; }
}

.page-products .pp-tier-panel h3 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
}

.page-products .pp-tier-fit {
  margin: 0 0 20px;
  font-size: 15px;
  color: var(--bamboo);
}

.page-products .pp-tier-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-products .pp-tier-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pp-ink-soft);
}

.page-products .pp-tier-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .82em;
  width: 9px;
  height: 1px;
  background: var(--cinnabar);
}

/* ---------- 04 检索 ---------- */
.page-products .pp-search-grid {
  display: grid;
  gap: 30px;
  margin-top: 28px;
}

.page-products .pp-search-copy p {
  margin: 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--pp-ink-soft);
}

.page-products .pp-search-copy .spec-list {
  margin-top: 24px;
}

.page-products .pp-search-details {
  display: grid;
  gap: 10px;
  margin-top: 34px;
}

/* ---------- 05 共建路径 ---------- */
.page-products .pp-path {
  position: relative;
  margin-top: 34px;
  padding-left: 28px;
}

.page-products .pp-path::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 14px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, var(--cinnabar) 0%, var(--slate-100) 26%, var(--slate-100) 100%);
}

.page-products .pp-step {
  position: relative;
  padding: 16px 0;
  border-top: var(--line);
}

.page-products .pp-step::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 26px;
  width: 9px;
  height: 9px;
  border: 2px solid var(--slate-100);
  border-radius: 50%;
  background: var(--paper);
  transition: border-color .16s var(--ease), background-color .16s var(--ease);
}

.page-products .pp-step[open]::before {
  border-color: var(--cinnabar);
  background: var(--cinnabar);
}

.page-products .pp-step summary {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px 14px;
  padding: 4px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-products .pp-step-num {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cinnabar);
}

.page-products .pp-step-name {
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--ink);
}

.page-products .pp-step-time {
  margin-left: auto;
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
}

.page-products .pp-step-body {
  padding: 8px 0 4px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pp-ink-soft);
}

/* ---------- 06 上手三步 ---------- */
.page-products .pp-steps {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
}

.page-products .pp-steps li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  padding: 22px 0;
  border-top: var(--line);
}

.page-products .pp-steps li:last-child {
  border-bottom: var(--line);
}

.page-products .pp-flow-num {
  grid-column: 1;
  grid-row: 1 / span 2;
  font-size: 24px;
  line-height: 1;
  padding-top: 5px;
  color: var(--cinnabar);
}

.page-products .pp-steps h3 {
  grid-column: 2;
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 600;
}

.page-products .pp-steps p {
  grid-column: 2;
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pp-ink-soft);
}

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

.page-products .pp-onboard-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-products .pp-more {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: var(--line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

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

/* ---------- 响应式 ---------- */
@media (min-width: 880px) {
  .page-products .pp-search-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: center;
    gap: 40px;
  }
}

@media (max-width: 720px) {
  .page-products .pp-head {
    padding-bottom: 34px;
  }

  .page-products .pp-head .page-title {
    max-width: none;
  }

  .page-products .pp-indexmap {
    padding: 16px 14px 12px;
  }

  .page-products .pp-tier-tab {
    padding: 10px 14px;
    font-size: 15px;
  }

  .page-products .pp-tier-panel {
    padding: 20px 18px;
  }

  .page-products .pp-step-time {
    margin-left: 0;
    width: 100%;
  }

  .page-products .pp-steps li {
    grid-template-columns: 40px minmax(0, 1fr);
  }

  .page-products .pp-flow-num {
    font-size: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-tier-panel,
  .page-products .pp-tier-tab,
  .page-products .pp-indexmap .ix-node rect,
  .page-products .pp-step::before {
    animation: none;
    transition: none;
  }
}