.page-products {
  --pn-gap: clamp(18px, 3vw, 30px);
  --pn-card-r: 16px;
  padding-bottom: clamp(56px, 9vw, 104px);
}

/* ---------- 首屏 ---------- */
.page-products .pn-hero {
  position: relative;
  margin-top: clamp(16px, 2.6vw, 26px);
  padding: clamp(24px, 4vw, 46px) clamp(20px, 3.6vw, 44px);
  border: 1px solid var(--rail-line);
  border-radius: var(--r-lg);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(57, 224, 208, .14), transparent 58%),
    radial-gradient(90% 120% at 0% 100%, rgba(255, 122, 47, .10), transparent 60%),
    var(--ink-2);
  overflow: hidden;
}

.page-products .pn-hero h1 {
  margin: 12px 0 0;
  max-width: 24ch;
  font-size: clamp(27px, 5.2vw, 50px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--white);
}

.page-products .pn-hero__lead {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--trace-light);
}

.page-products .pn-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pn-jump__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border: 1px solid var(--rail-line);
  border-radius: 999px;
  font-size: 14px;
  color: var(--trace-light);
  text-decoration: none;
  transition: border-color .18s var(--ease-out), color .18s var(--ease-out), background-color .18s var(--ease-out);
}

.page-products .pn-jump__link:hover,
.page-products .pn-jump__link:focus-visible {
  border-color: var(--cyan);
  background: rgba(57, 224, 208, .08);
  color: var(--white);
}

.page-products .pn-jump__link .mono {
  font-size: 12px;
  color: var(--cyan);
}

/* ---------- 章节骨架 ---------- */
.page-products .pn-section {
  margin-top: clamp(48px, 7vw, 84px);
  scroll-margin-top: 88px;
}

.page-products .pn-head {
  max-width: 70ch;
}

.page-products .pn-head h2 {
  margin: 10px 0 0;
  font-size: clamp(22px, 3.6vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.015em;
  color: var(--white);
}

.page-products .pn-head__note {
  margin: 12px 0 0;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--trace-light);
}

.page-products .pn-sub {
  margin: clamp(34px, 5vw, 54px) 0 0;
  font-size: clamp(18px, 2.6vw, 24px);
  font-weight: 700;
  color: var(--white);
}

.page-products .pn-note {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  max-width: 76ch;
  padding: 16px 18px;
  border-left: 2px solid var(--cyan);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(18, 36, 59, .7);
  font-size: 15px;
  line-height: 1.78;
  color: var(--trace-light);
}

.page-products .pn-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 224, 208, .4);
}

.page-products .pn-link:hover,
.page-products .pn-link:focus-visible {
  border-bottom-color: var(--cyan);
  color: var(--white);
}

/* ---------- 服务清单 ---------- */
.page-products .pn-split {
  display: grid;
  gap: var(--pn-gap);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-products .pn-ledger {
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--rail-line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--ink-2);
}

.page-products .pn-ledger > li + li {
  border-top: 1px solid var(--rail-line);
}

.page-products .pn-ledger > li:nth-child(even) {
  background: rgba(11, 23, 41, .55);
}

.page-products .pn-item {
  display: block;
}

.page-products .pn-item__sum {
  position: relative;
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 42px 16px 16px;
  list-style: none;
  cursor: pointer;
  transition: background-color .18s var(--ease-out);
}

.page-products .pn-item__sum::-webkit-details-marker {
  display: none;
}

.page-products .pn-item__sum:hover,
.page-products .pn-item__sum:focus-visible {
  background: rgba(57, 224, 208, .06);
  outline: none;
}

.page-products .pn-item__sum::after {
  content: "";
  position: absolute;
  top: 24px;
  right: 20px;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--trace);
  border-bottom: 1.5px solid var(--trace);
  transform: rotate(45deg);
  transition: transform .22s var(--ease-out), border-color .22s var(--ease-out);
}

.page-products .pn-item[open] .pn-item__sum::after {
  transform: rotate(-135deg);
  border-color: var(--cyan);
}

.page-products .pn-item__rail {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding-right: 12px;
  border-right: 1px solid var(--rail-line);
}

.page-products .pn-item__idx {
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: .02em;
}

.page-products .pn-item__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--trace);
  box-shadow: 0 0 0 3px rgba(138, 155, 176, .14);
}

.page-products .pn-item__dot--live {
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(57, 224, 208, .16);
}

.page-products .pn-item__dot--ok {
  background: var(--ok);
  box-shadow: 0 0 0 3px rgba(63, 208, 138, .16);
}

.page-products .pn-item__body {
  display: grid;
  gap: 7px;
}

.page-products .pn-item__name {
  font-size: 16.5px;
  font-weight: 700;
  color: var(--white);
}

.page-products .pn-item__desc {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--trace-light);
}

.page-products .pn-item__meta {
  font-size: 12.5px;
  color: var(--trace);
  letter-spacing: .02em;
}

.page-products .pn-item__more {
  padding: 14px 18px 18px 92px;
  border-top: 1px dashed var(--rail-line);
}

.page-products .pn-substeps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-products .pn-substeps li {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 12px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--trace-light);
}

.page-products .pn-substeps .mono {
  font-size: 12.5px;
  color: var(--cyan);
  padding-top: 3px;
}

/* ---------- 图示 ---------- */
.page-products .pn-shot {
  margin: 0;
  border: 1px solid var(--rail-line);
  border-radius: var(--r-md);
  background: var(--ink-2);
  overflow: hidden;
}

.page-products .pn-shot img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .pn-shot figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--rail-line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--trace);
}

.page-products .pn-shot--wide,
.page-products .pn-shot--half {
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 步骤条 ---------- */
.page-products .pn-steps {
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--rail-line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--ink-2);
}

.page-products .pn-step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 18px;
  outline: none;
  transition: background-color .2s var(--ease-out), box-shadow .2s var(--ease-out);
}

.page-products .pn-step + .pn-step {
  border-top: 1px solid var(--rail-line);
}

.page-products .pn-step:hover,
.page-products .pn-step:focus-visible {
  background: rgba(57, 224, 208, .06);
  box-shadow: inset 3px 0 0 var(--cyan);
}

.page-products .pn-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--rail-line);
  border-radius: 12px;
  background: var(--ink);
  font-size: 14px;
  color: var(--cyan);
}

.page-products .pn-step__body {
  display: grid;
  gap: 6px;
}

.page-products .pn-step__title {
  margin: 0;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--white);
}

.page-products .pn-step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--trace-light);
}

.page-products .pn-step__code {
  margin: 0;
  font-size: 12.5px;
  color: var(--signal);
  letter-spacing: .04em;
}

/* ---------- 横向卡片带 ---------- */
.page-products .pn-belt {
  display: flex;
  gap: 14px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 2px 2px 16px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-products .pn-belt::-webkit-scrollbar {
  height: 6px;
}

.page-products .pn-belt::-webkit-scrollbar-thumb {
  background: var(--rail-line);
  border-radius: 999px;
}

.page-products .pn-card {
  flex: 0 0 min(76vw, 258px);
  min-width: 0;
  scroll-snap-align: start;
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 18px;
  border: 1px solid var(--rail-line);
  border-radius: var(--pn-card-r);
  background: linear-gradient(180deg, rgba(18, 36, 59, .92), rgba(11, 23, 41, .92));
}

.page-products .pn-card__idx {
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: .03em;
}

.page-products .pn-card__name {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

.page-products .pn-card__desc {
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--trace-light);
}

/* ---------- 版本并排 ---------- */
.page-products .pn-diff {
  display: grid;
  gap: 1px;
  margin-top: clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--rail-line);
  border-radius: var(--r-md);
  background: var(--rail-line);
  overflow: hidden;
}

.page-products .pn-diff__pane {
  padding: 18px;
  background: var(--ink-2);
}

.page-products .pn-diff__pane--now {
  background: rgba(18, 36, 59, .78);
}

.page-products .pn-diff__tag {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--trace);
}

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

.page-products .pn-diff__list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 10px;
  padding-left: 14px;
  position: relative;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--trace-light);
}

.page-products .pn-diff__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--trace);
}

.page-products .pn-diff__list li.is-changed {
  color: var(--white);
}

.page-products .pn-diff__list li.is-changed::before {
  background: var(--signal);
}

.page-products .pn-diff__mark {
  font-size: 11.5px;
  padding: 1px 8px;
  border-radius: 999px;
  border: 1px solid rgba(255, 122, 47, .45);
  color: var(--signal);
}

.page-products .pn-diff__seam {
  background: var(--rail-line);
}

/* ---------- 面板设置 ---------- */
.page-products .pn-settings {
  display: grid;
  gap: var(--pn-gap);
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products .pn-set {
  padding: 20px;
  border: 1px solid var(--rail-line);
  border-radius: var(--r-md);
  background: var(--ink-2);
}

.page-products .pn-set__idx {
  margin: 0;
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: .03em;
}

.page-products .pn-set__name {
  margin: 8px 0 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

.page-products .pn-set__text {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--trace-light);
}

.page-products .pn-seg {
  display: flex;
  gap: 6px;
  margin-top: 16px;
  padding: 4px;
  border: 1px solid var(--rail-line);
  border-radius: 12px;
  background: var(--ink);
}

.page-products .pn-seg__cell {
  flex: 1 1 0;
  min-width: 0;
  padding: 7px 6px;
  border-radius: 9px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--trace);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-products .pn-seg__cell.is-on {
  background: rgba(57, 224, 208, .14);
  border: 1px solid rgba(57, 224, 208, .45);
  color: var(--cyan);
}

/* ---------- 反馈处理 ---------- */
.page-products .pn-feedback {
  display: grid;
  gap: var(--pn-gap);
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products .pn-flow {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  border: 1px solid var(--rail-line);
  border-radius: var(--r-md);
  background: var(--rail-line);
  overflow: hidden;
}

.page-products .pn-flow__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  background: var(--ink-2);
}

.page-products .pn-flow__idx {
  font-size: 13px;
  color: var(--signal);
  padding-top: 3px;
}

.page-products .pn-flow__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--trace-light);
}

.page-products .pn-close {
  padding: 22px 20px;
  border: 1px solid rgba(255, 122, 47, .35);
  border-radius: var(--r-md);
  background:
    radial-gradient(110% 130% at 100% 0%, rgba(255, 122, 47, .14), transparent 62%),
    var(--ink-2);
}

.page-products .pn-close__tag {
  margin: 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--signal);
}

.page-products .pn-close__text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--trace-light);
}

.page-products .pn-close__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-products .pn-close__foot {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--trace);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-products .pn-diff {
    gap: 0;
    grid-template-columns: minmax(0, 1fr) 3px minmax(0, 1fr);
  }

  .page-products .pn-diff__seam {
    background: var(--cyan);
  }

  .page-products .pn-settings {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pn-shot--half {
    max-width: 620px;
  }
}

@media (min-width: 900px) {
  .page-products .pn-split {
    grid-template-columns: minmax(0, 1.52fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pn-feedback {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-products .pn-item__sum {
    grid-template-columns: 72px minmax(0, 1fr);
    padding: 18px 46px 18px 18px;
  }

  .page-products .pn-item__more {
    padding-left: 104px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pn-item__sum::after,
  .page-products .pn-item__sum,
  .page-products .pn-step,
  .page-products .pn-jump__link {
    transition: none;
  }
}
</main>