.page-products {
  --pp-line: 1px solid var(--ink-700);
  --pp-soft: rgba(0, 229, 192, 0.45);
  display: block;
}

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

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

.page-products a:hover {
  color: var(--cyan-soft);
}

/* 首屏 */
.page-products .page-head {
  padding: 32px 0 40px;
  max-width: 820px;
}

.page-products .page-head__kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-products .page-head__title {
  margin: 0;
  font-size: clamp(28px, 5.4vw, 52px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--white);
}

.page-products .page-head__lead {
  margin: 20px 0 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.78;
  color: var(--muted);
}

.page-products .head-chips {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* 通用标签 */
.page-products .chip {
  display: inline-flex;
  align-items: center;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid var(--ink-600);
  background: rgba(255, 255, 255, 0.02);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.4;
}

.page-products .chip--cyan {
  border-color: var(--pp-soft);
  color: var(--cyan);
  background: rgba(0, 229, 192, 0.06);
}

.page-products .chip--orange {
  border-color: rgba(255, 122, 26, 0.5);
  color: var(--orange-soft);
  background: rgba(255, 122, 26, 0.07);
}

/* 色带 */
.page-products .band {
  height: 1px;
  background: var(--ink-700);
}

.page-products .band--split {
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--orange) 45%, rgba(11, 14, 18, 0) 92%);
}

/* 分栏骨架 */
.page-products .layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding-top: 40px;
}

.page-products .col-main {
  min-width: 0;
}

.page-products .rail {
  min-width: 0;
}

.page-products .rail__note {
  margin: 14px 0 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* 工具菜单示意 */
.page-products .tool-menu {
  padding: 18px;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius);
  background: var(--ink-800);
}

.page-products .tool-menu__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

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

.page-products .tool-menu__item {
  padding: 10px 14px;
  border-left: 2px solid var(--ink-600);
  border-radius: 0 8px 8px 0;
  background: rgba(255, 255, 255, 0.02);
  color: var(--white);
  font-size: 15px;
}

/* 章节头部 */
.page-products .section {
  padding: 52px 0;
  border-top: var(--pp-line);
}

.page-products .col-main > .section:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-products .section--last {
  padding-bottom: 24px;
}

.page-products .section__head {
  max-width: 44em;
  margin-bottom: 30px;
}

.page-products .section__index {
  display: inline-block;
  margin-bottom: 14px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--pp-soft);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-products .section__title {
  margin: 0;
  font-size: clamp(22px, 3.6vw, 34px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  font-weight: 700;
  color: var(--white);
}

.page-products .section__lead {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--muted);
}

/* 多端入口 */
.page-products .terms {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-products .term {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius);
  background: var(--ink-800);
  overflow: hidden;
  transition: border-color 0.24s ease, box-shadow 0.24s ease;
}

.page-products .term:hover {
  border-color: var(--pp-soft);
  box-shadow: 0 0 0 1px rgba(0, 229, 192, 0.12);
}

.page-products .term__media {
  aspect-ratio: 4 / 3;
  background: var(--ink-700);
  overflow: hidden;
}

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

.page-products .term__body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 20px 22px;
}

.page-products .term__label {
  align-self: flex-start;
}

.page-products .term__title {
  margin: 0;
  font-size: 18px;
  line-height: 1.35;
  color: var(--white);
}

.page-products .term__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-products .term__meta {
  margin: auto 0 0;
  padding-top: 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan-soft);
}

/* 旁注 */
.page-products .note {
  margin: 22px 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--cyan);
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

/* 工具菜单功能卡 */
.page-products .tools-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-products .tools {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-products .tool {
  border: 1px solid var(--ink-700);
  border-radius: var(--radius);
  background: var(--ink-800);
  transition: border-color 0.24s ease;
}

.page-products .tool[open] {
  border-color: var(--pp-soft);
}

.page-products .tool__summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-products .tool__summary::after {
  content: "+";
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--cyan);
  transition: transform 0.22s ease;
}

.page-products .tool[open] .tool__summary::after {
  transform: rotate(45deg);
}

.page-products .tool__icon {
  display: inline-flex;
  color: var(--cyan);
}

.page-products .tool__name {
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
}

.page-products .tool__pos {
  margin-left: auto;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-products .tool__body {
  padding: 0 18px 18px;
}

.page-products .tool__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

/* 媒体框架 */
.page-products .media-frame {
  margin: 0;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius);
  background: var(--ink-800);
  overflow: hidden;
}

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

.page-products .media-frame__caption {
  padding: 12px 16px;
  border-top: 1px solid var(--ink-700);
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--muted);
}

.page-products .tools-shot {
  align-self: start;
}

.page-products .media-frame--wide {
  margin-bottom: 28px;
}

/* 路径对照表 */
.page-products .table-wrap {
  border: 1px solid var(--ink-700);
  border-radius: var(--radius);
  background: var(--ink-800);
  overflow-x: auto;
}

.page-products .path-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-products .path-table th,
.page-products .path-table td {
  padding: 15px 18px;
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
}

.page-products .path-table thead th {
  border-bottom: 1px solid var(--ink-700);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--muted);
  white-space: nowrap;
}

.page-products .path-table tbody th {
  font-weight: 600;
  color: var(--white);
  white-space: nowrap;
}

.page-products .path-table tbody td {
  border-bottom: 1px solid var(--ink-700);
  color: var(--muted);
}

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

.page-products .path-table tbody tr:hover td,
.page-products .path-table tbody tr:hover th {
  background: rgba(0, 229, 192, 0.055);
}

.page-products .path-table .is-new {
  color: var(--cyan);
}

.page-products .path-table tbody td.mono {
  white-space: nowrap;
  color: var(--orange-soft);
  font-size: 13px;
}

/* 收藏三步 */
.page-products .collect-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.page-products .collect-item {
  padding: 4px 0 4px 18px;
  border-left: 2px solid var(--cyan);
}

.page-products .collect-item__title {
  margin: 0 0 8px;
  font-size: 17px;
  line-height: 1.4;
  color: var(--white);
}

.page-products .collect-item__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

/* 四步流程 */
.page-products .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

.page-products .step {
  position: relative;
  padding-left: 62px;
}

.page-products .step__num {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--pp-soft);
  border-radius: 50%;
  background: var(--ink-900);
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-products .step:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 48px;
  bottom: -28px;
  width: 1px;
  background: linear-gradient(180deg, rgba(0, 229, 192, 0.6), rgba(0, 229, 192, 0));
}

.page-products .step__box {
  border: 1px solid var(--ink-700);
  border-radius: var(--radius);
  background: var(--ink-800);
  transition: border-color 0.24s ease;
}

.page-products .step__box[open] {
  border-color: var(--pp-soft);
}

.page-products .step__summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-products .step__summary::after {
  content: "▾";
  margin-left: auto;
  font-size: 12px;
  color: var(--cyan);
  transition: transform 0.2s ease;
}

.page-products .step__box[open] .step__summary::after {
  transform: rotate(180deg);
}

.page-products .step__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
}

.page-products .step__body {
  padding: 0 18px 16px;
}

.page-products .step__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

/* 兼容说明 */
.page-products .compat {
  border-top: var(--pp-line);
}

.page-products .compat__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
  border-bottom: var(--pp-line);
}

.page-products .compat__key {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--cyan);
}

.page-products .compat__val {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

/* 版本记录 */
.page-products .versions {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .version {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 20px 0;
  border-top: var(--pp-line);
}

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

.page-products .version__tag {
  justify-self: start;
  padding: 4px 12px;
  border: 1px solid var(--pp-soft);
  border-radius: 999px;
  background: rgba(0, 229, 192, 0.06);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-products .version__title {
  margin: 0 0 6px;
  font-size: 16px;
  line-height: 1.4;
  color: var(--white);
}

.page-products .version__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

/* 收束入口 */
.page-products .next {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding: 30px 24px;
  border: 1px solid var(--pp-soft);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(0, 229, 192, 0.08), rgba(255, 122, 26, 0.05));
}

.page-products .next__title {
  margin: 0 0 10px;
  font-size: 22px;
  line-height: 1.35;
  color: var(--white);
}

.page-products .next__text p {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

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

.page-products .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 15px;
  line-height: 1;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-products .btn--primary {
  background: var(--orange);
  color: var(--ink-900);
  font-weight: 700;
}

.page-products .btn--primary:hover {
  background: var(--orange-soft);
  color: var(--ink-900);
}

.page-products .btn--ghost {
  border-color: var(--ink-600);
  color: var(--white);
}

.page-products .btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* 窄屏与宽屏适配 */
@media (min-width: 620px) {
  .page-products .tools {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 720px) {
  .page-products .terms {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .compat__row {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }

  .page-products .version {
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

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

@media (min-width: 800px) {
  .page-products .next {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 40px;
    padding: 40px 44px;
  }
}

@media (min-width: 960px) {
  .page-products .layout {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: 64px;
    align-items: start;
    padding-top: 56px;
  }

  .page-products .rail__sticky {
    position: sticky;
    top: calc(var(--belt-h) + 24px);
  }

  .page-products .section {
    padding: 64px 0;
  }
}

@media (min-width: 1040px) {
  .page-products .tools-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
    gap: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .term,
  .page-products .tool,
  .page-products .tool__summary::after,
  .page-products .step__box,
  .page-products .step__summary::after,
  .page-products .btn {
    transition: none;
  }
}