/* ===== 栏目与版本 / page-products ===== */

.page-products {
  background: var(--midnight-900);
  color: var(--silver);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-products .mono {
  letter-spacing: 0.04em;
}

/* ---------- 首屏 ---------- */

.page-products .pp-hero {
  position: relative;
  padding: clamp(40px, 7vw, 92px) 0 clamp(34px, 5vw, 66px);
  border-bottom: 1px solid var(--blueprint-line);
  overflow: hidden;
}

.page-products .pp-hero::before {
  content: "";
  position: absolute;
  inset: -22% -12% 0;
  background:
    radial-gradient(120% 92% at 10% 6%, rgba(228, 50, 43, 0.18), transparent 58%),
    radial-gradient(112% 86% at 90% 94%, rgba(61, 224, 168, 0.15), transparent 60%);
  animation: pp-aurora 24s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: 0;
}

@keyframes pp-aurora {
  from { transform: translate3d(0, 0, 0) scale(1); opacity: 0.72; }
  to   { transform: translate3d(1.6%, -1.8%, 0) scale(1.05); opacity: 1; }
}

.page-products .pp-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 38px;
  align-items: start;
}

@media (min-width: 960px) {
  .page-products .pp-hero__inner {
    grid-template-columns: 38% minmax(0, 1fr);
    gap: clamp(36px, 5vw, 72px);
  }
}

.page-products .pp-hero__crumb {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--maple-red-light);
  margin: 0 0 18px;
}

.page-products .pp-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 4.6vw, 54px);
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--paper);
  margin: 0 0 22px;
}

.page-products .pp-hero__lede {
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.8;
  color: var(--silver);
  max-width: 46ch;
  margin: 0 0 28px;
}

.page-products .pp-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 本页快速定位 */

.page-products .pp-quick {
  position: relative;
  border: 1px solid var(--blueprint-line);
  background: rgba(14, 22, 48, 0.74);
  padding: 24px 22px 20px;
}

.page-products .pp-quick::before,
.page-products .pp-quick::after {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border: 1px solid var(--maple-red);
}

.page-products .pp-quick::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-products .pp-quick::after {
  bottom: -1px;
  right: -1px;
  border-left: 0;
  border-top: 0;
}

.page-products .pp-quick__title {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--silver-dim);
  margin: 0 0 14px;
}

.page-products .pp-quick__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
}

@media (min-width: 560px) {
  .page-products .pp-quick__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-products .pp-quick__list a {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 9px 10px;
  font-size: 15px;
  color: var(--silver);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: border-color 200ms var(--ease), color 200ms var(--ease), background 200ms var(--ease);
}

.page-products .pp-quick__list a .mono {
  font-size: 12px;
  color: var(--maple-red-light);
}

.page-products .pp-quick__list a:hover,
.page-products .pp-quick__list a:focus-visible {
  border-left-color: var(--maple-red);
  background: rgba(228, 50, 43, 0.1);
  color: var(--paper);
  outline: none;
}

/* ---------- 通用分区标题间距 ---------- */

.page-products .section-head {
  margin-bottom: clamp(24px, 3vw, 40px);
}

/* ---------- 入口索引总表 ---------- */

.page-products .pp-index {
  position: relative;
  padding: clamp(48px, 6vw, 88px) 0;
  border-bottom: 1px solid var(--blueprint-line);
  overflow: hidden;
}

.page-products .pp-index__bg {
  position: absolute;
  inset: 0;
  opacity: 0.3;
  pointer-events: none;
}

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

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

.page-products .pp-groups {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 700px) {
  .page-products .pp-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-products .pp-groups {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-products .pp-group {
  background: rgba(14, 22, 48, 0.88);
  border: 1px solid var(--blueprint-line);
  border-left: 3px solid var(--maple-red);
  padding: 20px 0 14px;
}

.page-products .pp-group--green { border-left-color: var(--aurora-green); }
.page-products .pp-group--deep  { border-left-color: var(--aurora-deep); }
.page-products .pp-group--dim   { border-left-color: var(--silver-dim); }

.page-products .pp-group__head {
  padding: 0 18px 14px;
  border-bottom: 1px solid var(--blueprint-line);
}

.page-products .pp-group__range {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--maple-red-light);
  margin: 0 0 6px;
}

.page-products .pp-group--green .pp-group__range {
  color: var(--aurora-green);
}

.page-products .pp-group__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  line-height: 1.3;
  letter-spacing: 0.02em;
  color: var(--paper);
  margin: 0 0 6px;
}

.page-products .pp-group__note {
  font-size: 13px;
  line-height: 1.62;
  color: var(--silver-dim);
  margin: 0;
}

.page-products .pp-entries {
  list-style: none;
  margin: 0;
  padding: 6px 0 0;
}

.page-products .pp-entries li + li {
  border-top: 1px solid rgba(30, 42, 74, 0.62);
}

.page-products .pp-entries a {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding: 10px 18px;
  font-size: 14.5px;
  color: var(--silver);
  text-decoration: none;
  transition: background 180ms var(--ease), color 180ms var(--ease);
}

.page-products .pp-entries a:hover,
.page-products .pp-entries a:focus-visible {
  background: rgba(228, 50, 43, 0.12);
  color: var(--paper);
  outline: none;
}

.page-products .pp-group--green .pp-entries a:hover,
.page-products .pp-group--green .pp-entries a:focus-visible {
  background: rgba(61, 224, 168, 0.12);
}

.page-products .pp-entries__code {
  font-size: 13px;
  color: var(--maple-red-light);
}

.page-products .pp-group--green .pp-entries__code {
  color: var(--aurora-green);
}

.page-products .pp-group--deep .pp-entries__code {
  color: var(--aurora-green);
}

.page-products .pp-group--dim .pp-entries__code {
  color: var(--silver-dim);
}

.page-products .pp-entries__name {
  overflow-wrap: anywhere;
}

/* ---------- 焕新版栏目区 ---------- */

.page-products .pp-refresh {
  padding: clamp(48px, 6vw, 88px) 0;
  border-bottom: 1px solid var(--blueprint-line);
  background: linear-gradient(180deg, rgba(61, 224, 168, 0.06), transparent 44%);
}

.page-products .pp-rail-wrap {
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x proximity;
  padding-bottom: 20px;
  scrollbar-width: thin;
  scrollbar-color: var(--aurora-deep) var(--midnight-700);
  -webkit-overflow-scrolling: touch;
}

.page-products .pp-rail-wrap::-webkit-scrollbar { height: 6px; }
.page-products .pp-rail-wrap::-webkit-scrollbar-track { background: var(--midnight-700); }
.page-products .pp-rail-wrap::-webkit-scrollbar-thumb { background: var(--aurora-deep); }

.page-products .pp-rail {
  display: flex;
  gap: 20px;
  width: max-content;
  padding: 50px var(--gutter) 26px;
  align-items: stretch;
}

.page-products .pp-rail:focus-visible {
  outline: 2px solid var(--aurora-green);
  outline-offset: -4px;
}

.page-products .pp-rail__card {
  flex: 0 0 auto;
  width: 244px;
  scroll-snap-align: start;
  background: var(--midnight-700);
  border: 1px solid var(--blueprint-line);
  border-left: 3px solid var(--aurora-green);
  padding: 18px 18px 24px;
  transition: transform 240ms var(--ease), background 240ms var(--ease), border-color 240ms var(--ease);
}

@media (min-width: 900px) {
  .page-products .pp-rail__card { width: 268px; }
}

.page-products .pp-rail__card:nth-child(2n) { transform: translateY(-20px); }
.page-products .pp-rail__card:nth-child(3n) { transform: translateY(16px); }
.page-products .pp-rail__card:nth-child(5n) { transform: translateY(-10px); }

.page-products .pp-rail__card:hover,
.page-products .pp-rail__card:focus-within {
  transform: translateY(-30px);
  border-color: var(--aurora-green);
  background: rgba(28, 127, 99, 0.22);
}

.page-products .pp-rail__media {
  margin: -18px -18px 16px;
  overflow: hidden;
  border-bottom: 1px solid var(--blueprint-line);
}

.page-products .pp-rail__media img {
  display: block;
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.page-products .pp-rail__code {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--aurora-green);
  margin: 0 0 8px;
}

.page-products .pp-rail__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--paper);
  margin: 0 0 8px;
}

.page-products .pp-rail__desc {
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--silver-dim);
  margin: 0;
}

/* ---------- 原版编号对照 ---------- */

.page-products .pp-legacy {
  padding: clamp(48px, 6vw, 88px) 0;
  border-bottom: 1px solid var(--blueprint-line);
}

.page-products .pp-legacy__panel {
  position: relative;
  background: var(--paper);
  color: var(--ink);
  padding: clamp(26px, 4vw, 54px);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-products .pp-legacy__panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--maple-red), var(--aurora-green));
}

.page-products .pp-legacy__panel .section-head__code { color: var(--maple-red); }
.page-products .pp-legacy__panel .section-head__title { color: var(--ink); }
.page-products .pp-legacy__panel .section-head__desc { color: #46536A; }

.page-products .pp-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-products .pp-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14.5px;
  color: var(--ink);
}

.page-products .pp-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: #5A6579;
  padding: 10px 14px;
  border-bottom: 2px solid var(--ink);
  white-space: nowrap;
}

.page-products .pp-table td {
  padding: 13px 14px;
  border-bottom: 1px solid rgba(16, 20, 31, 0.1);
  vertical-align: middle;
}

.page-products .pp-table td.mono {
  font-family: var(--font-mono);
  font-size: 13px;
}

.page-products .pp-table tbody tr:nth-child(odd) { background: rgba(16, 20, 31, 0.04); }
.page-products .pp-table tbody tr:hover { background: rgba(228, 50, 43, 0.09); }

.page-products .pp-anchor {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 9px;
  vertical-align: middle;
  border-radius: 50%;
}

.page-products .pp-anchor--red { background: var(--maple-red); }
.page-products .pp-anchor--green { background: var(--aurora-deep); }
.page-products .pp-anchor--silver { background: var(--silver-dim); }

/* ---------- 转场带 ---------- */

.page-products .pp-band {
  margin: 0;
  padding: 0;
  line-height: 0;
  border-bottom: 1px solid var(--blueprint-line);
}

.page-products .pp-band img {
  display: block;
  width: 100%;
  height: clamp(140px, 22vw, 260px);
  object-fit: cover;
  opacity: 0.55;
}

/* ---------- 七步流程 ---------- */

.page-products .pp-steps {
  padding: clamp(48px, 6vw, 88px) 0;
  border-bottom: 1px solid var(--blueprint-line);
}

.page-products .pp-steps__fig {
  margin: 0 0 34px;
}

.page-products .pp-steps__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--blueprint-line);
}

.page-products .pp-steps__cap {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--silver-dim);
  margin-top: 12px;
}

.page-products .pp-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .pp-steps__list > li { margin: 0; }

.page-products .pp-steps__list details {
  background: var(--midnight-700);
  border: 1px solid var(--blueprint-line);
  border-left: 3px solid var(--aurora-deep);
  transition: border-color 220ms var(--ease), background 220ms var(--ease);
}

.page-products .pp-steps__list details[open] {
  border-left-color: var(--aurora-green);
  background: rgba(28, 127, 99, 0.14);
}

.page-products .pp-steps__list summary {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 24px;
  gap: 12px;
  align-items: center;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-products .pp-steps__list summary:focus-visible {
  outline: 2px solid var(--aurora-green);
  outline-offset: -2px;
}

.page-products .pp-steps__no {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--aurora-green);
}

.page-products .pp-steps__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 14px;
}

.page-products .pp-steps__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 16.5px;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-products .pp-steps__hint {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--silver-dim);
}

.page-products .pp-steps__toggle {
  position: relative;
  width: 16px;
  height: 16px;
  justify-self: end;
}

.page-products .pp-steps__toggle::before,
.page-products .pp-steps__toggle::after {
  content: "";
  position: absolute;
  background: var(--aurora-green);
  transition: transform 220ms var(--ease);
}

.page-products .pp-steps__toggle::before {
  top: 7px;
  left: 0;
  width: 16px;
  height: 2px;
}

.page-products .pp-steps__toggle::after {
  top: 0;
  left: 7px;
  width: 2px;
  height: 16px;
}

.page-products .pp-steps__list details[open] .pp-steps__toggle::after {
  transform: scaleY(0);
}

.page-products .pp-steps__body {
  margin: 0 18px;
  padding: 14px 0 20px 64px;
  border-top: 1px dashed rgba(30, 42, 74, 0.9);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--silver-dim);
}

.page-products .pp-steps__body p { margin: 0; }
.page-products .pp-steps__body p + p { margin-top: 8px; }

.page-products .pp-steps__body strong {
  color: var(--aurora-green);
  font-weight: 700;
  margin-right: 8px;
}

/* ---------- 窗口宽度落位 ---------- */

.page-products .pp-widths {
  padding: clamp(48px, 6vw, 88px) 0;
  border-bottom: 1px solid var(--blueprint-line);
}

.page-products .pp-widths__fig {
  margin: 0 0 34px;
}

.page-products .pp-widths__fig img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--blueprint-line);
}

.page-products .pp-widths__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

@media (min-width: 860px) {
  .page-products .pp-widths__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-products .pp-width-card {
  background: var(--paper);
  color: var(--ink);
  padding: 24px 22px 26px;
  border-top: 4px solid var(--maple-red);
}

.page-products .pp-width-card:nth-child(2) { border-top-color: var(--aurora-deep); }
.page-products .pp-width-card:nth-child(3) { border-top-color: var(--silver-dim); }

.page-products .pp-width-card__range {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: #5A6579;
  margin: 0 0 10px;
}

.page-products .pp-width-card h3 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 0.02em;
  color: var(--ink);
  margin: 0 0 12px;
}

.page-products .pp-width-card p {
  font-size: 14.5px;
  line-height: 1.78;
  color: #2A3242;
  margin: 0 0 12px;
}

.page-products .pp-width-card .pp-width-card__tip {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--aurora-deep);
  border-left: 2px solid var(--aurora-deep);
  padding-left: 10px;
  margin: 0;
}

/* ---------- 换设备检查顺序 ---------- */

.page-products .pp-flow {
  padding: clamp(48px, 6vw, 88px) 0;
  border-bottom: 1px solid var(--blueprint-line);
}

.page-products .pp-flow__list {
  counter-reset: ppflow;
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 800px;
}

.page-products .pp-flow__list li {
  counter-increment: ppflow;
  position: relative;
  padding: 20px 0 20px 64px;
  border-top: 1px solid var(--blueprint-line);
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--silver);
}

.page-products .pp-flow__list li:last-child {
  border-bottom: 1px solid var(--blueprint-line);
}

.page-products .pp-flow__list li::before {
  content: "F0" counter(ppflow);
  position: absolute;
  left: 0;
  top: 23px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--maple-red-light);
}

/* ---------- 收盘指引 ---------- */

.page-products .pp-help {
  padding: clamp(48px, 6vw, 88px) 0 clamp(64px, 8vw, 112px);
}

.page-products .pp-help__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 800px) {
  .page-products .pp-help__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-products .pp-help__card {
  display: block;
  padding: 26px 22px 28px;
  background: var(--midnight-700);
  border: 1px solid var(--blueprint-line);
  border-top: 3px solid var(--maple-red);
  color: var(--silver);
  text-decoration: none;
  transition: transform 220ms var(--ease), background 220ms var(--ease), border-color 220ms var(--ease);
}

.page-products .pp-help__card:nth-child(2) { border-top-color: var(--aurora-green); }
.page-products .pp-help__card:nth-child(3) { border-top-color: var(--silver-dim); }

.page-products .pp-help__card:hover,
.page-products .pp-help__card:focus-visible {
  transform: translateY(-6px);
  background: rgba(28, 127, 99, 0.16);
  outline: none;
}

.page-products .pp-help__card p {
  font-size: 13.5px;
  line-height: 1.74;
  color: var(--silver-dim);
  margin: 0;
}

.page-products .pp-help__card .pp-help__code {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--maple-red-light);
  margin: 0 0 10px;
}

.page-products .pp-help__card:nth-child(2) .pp-help__code {
  color: var(--aurora-green);
}

.page-products .pp-help__card h3 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.46;
  letter-spacing: 0.02em;
  color: var(--paper);
  margin: 0 0 10px;
}

/* ---------- 窄屏适配 ---------- */

@media (max-width: 639px) {
  .page-products .pp-hero__inner { gap: 30px; }

  .page-products .pp-quick { padding: 20px 16px 16px; }

  .page-products .pp-rail { padding: 24px var(--gutter) 16px; }

  .page-products .pp-rail__card:nth-child(2n),
  .page-products .pp-rail__card:nth-child(3n),
  .page-products .pp-rail__card:nth-child(5n) { transform: none; }

  .page-products .pp-rail__card:hover,
  .page-products .pp-rail__card:focus-within { transform: translateY(-6px); }

  .page-products .pp-steps__list summary {
    grid-template-columns: 44px minmax(0, 1fr) 20px;
    gap: 8px;
    padding: 14px;
  }

  .page-products .pp-steps__body {
    margin: 0 14px;
    padding-left: 0;
  }

  .page-products .pp-flow__list li {
    padding-left: 0;
    padding-top: 44px;
  }

  .page-products .pp-flow__list li::before {
    top: 20px;
    left: 0;
  }
}

/* ---------- 减少动态效果 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-hero::before { animation: none; }

  .page-products .pp-rail__card,
  .page-products .pp-help__card { transition: none; }

  .page-products .pp-rail__card:nth-child(2n),
  .page-products .pp-rail__card:nth-child(3n),
  .page-products .pp-rail__card:nth-child(5n) { transform: none; }
}