.page-products {
  --tools-gap: clamp(16px, 3vw, 28px);
  --tools-space: clamp(56px, 8vw, 96px);
  --tools-hairline: 1px solid var(--rule);
  --tools-offset: clamp(6px, 1.2vw, 12px);
  --tools-serif-edge: 2px solid var(--l-yellow);
}

/* ---------- 首屏 ---------- */
.page-products .tools-hero {
  padding-block: clamp(20px, 4vw, 40px) clamp(36px, 6vw, 72px);
}

.page-products .tools-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
}

.page-products .tools-hero__copy,
.page-products .tools-hero__media {
  width: auto;
  max-width: none;
  min-width: 0;
  grid-column: 1 / -1;
}

.page-products .tools-hero__eyebrow,
.page-products .tools-section__eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 16px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-products .tools-hero__title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 8vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-products .tools-hero__lede {
  margin: 0 0 16px;
  max-width: 62ch;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--paper);
}

.page-products .tools-hero__note {
  margin: 0 0 26px;
  max-width: 56ch;
  font-size: 14px;
  line-height: 24px;
  color: var(--muted);
  padding-left: 14px;
  border-left: var(--tools-serif-edge);
}

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

.page-products .tools-hero__figure {
  margin: 0;
}

.page-products .tools-hero__figure .figure__media {
  aspect-ratio: 4 / 3;
  border: var(--tools-hairline);
  background: var(--panel);
  transform: translate(var(--tools-offset), calc(var(--tools-offset) * -1));
}

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

.page-products .figure__cap {
  margin-top: 12px;
  font-size: 13px;
  line-height: 22px;
  color: var(--muted);
}

/* ---------- 索引 ---------- */
.page-products .tools-index {
  border-block: var(--tools-hairline);
  background: var(--panel);
}

.page-products .tools-index__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .tools-index__item + .tools-index__item {
  border-top: var(--tools-hairline);
}

.page-products .tools-index__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 4px;
  color: var(--paper);
  text-decoration: none;
  font-size: 15px;
  line-height: 24px;
  transition: color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-products .tools-index__link:hover,
.page-products .tools-index__link:focus-visible {
  background: var(--panel-raise);
  color: var(--l-blue);
}

.page-products .tools-index__num {
  color: var(--l-yellow);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-products .tools-index__txt {
  color: inherit;
}

/* ---------- 章节骨架 ---------- */
.page-products .tools-section {
  padding-block: var(--tools-space);
  scroll-margin-top: 72px;
}

.page-products .tools-section + .tools-section {
  border-top: var(--tools-hairline);
}

.page-products .tools-section__head {
  max-width: 74ch;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-products .tools-section__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 4.4vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .tools-section__lede {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--paper);
  opacity: 0.92;
}

/* ---------- 价格 ---------- */
.page-products .tools-price__banner {
  margin: 0 0 clamp(28px, 4vw, 44px);
}

.page-products .tools-price__banner .figure__media {
  aspect-ratio: 2 / 1;
  border: var(--tools-hairline);
  background: var(--terminal);
}

.page-products .tools-price__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--tools-gap);
  align-items: start;
}

.page-products .tools-tier {
  background: var(--panel);
  border: var(--tools-hairline);
  transition: transform 180ms var(--ease), border-color 180ms var(--ease);
}

.page-products .tools-tier:hover {
  transform: translateY(-2px);
  border-color: var(--l-blue);
}

.page-products .tools-tier[data-open] {
  background: var(--panel-raise);
}

.page-products .tools-tier__btn {
  display: block;
  width: 100%;
  padding: 20px 18px;
  background: transparent;
  border: 0;
  border-left: 4px solid var(--muted);
  text-align: left;
  color: var(--paper);
  cursor: pointer;
  font-family: inherit;
}

.page-products .tools-tier--free .tools-tier__btn { border-left-color: var(--paper); }
.page-products .tools-tier--observer .tools-tier__btn { border-left-color: var(--l-blue); }
.page-products .tools-tier--archive .tools-tier__btn { border-left-color: var(--l-yellow); }

.page-products .tools-tier__kicker {
  display: block;
  font-size: 12px;
  line-height: 16px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.page-products .tools-tier__name {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  line-height: 28px;
  margin-bottom: 10px;
}

.page-products .tools-tier__price {
  display: block;
  font-family: var(--font-mono);
  font-size: 32px;
  line-height: 38px;
  color: var(--l-yellow);
  letter-spacing: -0.01em;
}

.page-products .tools-tier--free .tools-tier__price,
.page-products .tools-tier--observer .tools-tier__price {
  color: var(--paper);
}

.page-products .tools-tier__per {
  font-size: 15px;
  color: var(--muted);
  margin-left: 2px;
}

.page-products .tools-tier__unit {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 22px;
  color: var(--muted);
}

.page-products .tools-tier__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .tools-tier__list li {
  position: relative;
  padding: 10px 0 10px 20px;
  font-size: 14px;
  line-height: 24px;
  color: var(--paper);
  border-top: var(--tools-hairline);
}

.page-products .tools-tier__list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--muted);
}

.page-products .tools-tier__foot {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 22px;
  color: var(--muted);
}

.page-products .tools-price__note {
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding-top: 16px;
  border-top: var(--tools-hairline);
  font-size: 14px;
  line-height: 24px;
  color: var(--muted);
}

/* ---------- iOS 能力 ---------- */
.page-products .tools-section__head--split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  max-width: none;
}

.page-products .tools-section__head--split > div {
  min-width: 0;
}

.page-products .tools-ios__band,
.page-products .tools-stats__band {
  margin: 0 calc(-1 * clamp(16px, 4vw, 32px));
}

.page-products .tools-ios__track,
.page-products .tools-stats__track {
  display: flex;
  gap: var(--tools-gap);
  padding: 4px clamp(16px, 4vw, 32px) 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-products .tools-ios__track .band__item,
.page-products .tools-stats__track .band__item {
  flex: 0 0 82%;
  max-width: 82%;
  scroll-snap-align: start;
}

.page-products .tools-ios__card {
  background: var(--panel);
  border: var(--tools-hairline);
  border-top: 3px solid var(--l-blue);
  padding: 20px 18px;
  transition: transform 180ms var(--ease), background-color 180ms var(--ease);
}

.page-products .tools-ios__card:hover {
  transform: translateY(-2px);
  background: var(--panel-raise);
}

.page-products .tools-ios__num {
  margin: 0 0 10px;
  font-size: 12px;
  line-height: 16px;
  letter-spacing: 0.14em;
  color: var(--l-green);
}

.page-products .tools-ios__name {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  line-height: 26px;
  color: var(--paper);
}

.page-products .tools-ios__body {
  margin: 0;
  font-size: 14px;
  line-height: 24px;
  color: var(--muted);
}

.page-products .tools-ios__foot {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  margin-top: clamp(28px, 4vw, 48px);
}

.page-products .tools-ios__figure {
  margin: 0;
}

.page-products .tools-ios__figure .figure__media {
  aspect-ratio: 1 / 1;
  border: var(--tools-hairline);
  background: var(--panel);
  transform: translate(calc(var(--tools-offset) * -1), var(--tools-offset));
}

.page-products .tools-ios__aside {
  border-left: 3px solid var(--l-blue);
  padding-left: 18px;
  align-self: start;
}

.page-products .tools-ios__aside-kicker {
  margin: 0 0 12px;
  font-size: 12px;
  line-height: 16px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--l-blue);
}

.page-products .tools-ios__aside-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .tools-ios__aside-list li {
  position: relative;
  padding: 12px 0 12px 20px;
  font-size: 14px;
  line-height: 24px;
  color: var(--paper);
  border-top: var(--tools-hairline);
}

.page-products .tools-ios__aside-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--muted);
}

/* ---------- 统计卡片 ---------- */
.page-products .tools-stats__backdrop {
  margin: 0 0 clamp(28px, 4vw, 44px);
}

.page-products .tools-stats__backdrop .figure__media {
  aspect-ratio: 4 / 3;
  border: var(--tools-hairline);
  background: var(--terminal);
}

.page-products .tools-stat-card {
  background: var(--panel);
  border: var(--tools-hairline);
  padding: 20px 18px;
}

.page-products .tools-stat-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: var(--tools-hairline);
}

.page-products .tools-stat-card__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  line-height: 28px;
  color: var(--paper);
}

.page-products .tools-stat-card__hint {
  margin: 12px 0 16px;
  font-size: 13px;
  line-height: 22px;
  color: var(--muted);
}

.page-products .tools-stat-card__rows {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .tools-stat-card__row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 60px;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
}

.page-products .tools-stat-card__season {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-products .tools-stat-card__meter {
  display: block;
  height: 8px;
  background: var(--night);
  border: 1px solid var(--rule);
  overflow: hidden;
}

.page-products .tools-stat-card__fill {
  display: block;
  height: 100%;
  background: var(--rule);
}

.page-products .tools-stat-card__fill--now {
  background: var(--l-yellow);
}

.page-products .tools-stat-card__val {
  font-size: 15px;
  text-align: right;
  color: var(--paper);
}

.page-products .tools-stats__caption {
  margin: 8px 0 clamp(28px, 4vw, 44px);
  font-size: 13px;
  line-height: 22px;
  color: var(--muted);
}

/* ---------- 通用手风琴补充 ---------- */
.page-products .accordion {
  border-top: var(--tools-hairline);
}

.page-products .acc-item {
  border-bottom: var(--tools-hairline);
}

.page-products .acc-item[data-open] {
  border-left: 3px solid var(--l-green);
}

.page-products .acc-item__btn {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  width: 100%;
  padding: 18px 4px;
  background: transparent;
  border: 0;
  text-align: left;
  color: var(--paper);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 26px;
}

.page-products .acc-item__btn:hover .tools-acc__title {
  color: var(--l-blue);
}

.page-products .acc-item__meta {
  font-size: 12px;
  line-height: 16px;
  letter-spacing: 0.12em;
  color: var(--l-yellow);
  flex: 0 0 auto;
}

.page-products .tools-acc__title {
  color: var(--paper);
}

.page-products .acc-item__inner {
  padding: 4px 4px 22px;
}

.page-products .acc-item__inner p {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
  opacity: 0.92;
}

.page-products .tools-tier .acc-item__inner {
  padding: 0 18px 20px;
}

.page-products .tools-tier .acc-item__btn {
  padding: 20px 18px;
  display: block;
}

/* ---------- 档案核对 ---------- */
.page-products .tools-archive__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
}

.page-products .tools-table__scroll {
  overflow-x: auto;
  border: var(--tools-hairline);
  background: var(--panel);
}

.page-products .tools-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 14px;
  line-height: 22px;
}

.page-products .tools-table__caption {
  padding: 14px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
  border-bottom: var(--tools-hairline);
}

.page-products .tools-table th,
.page-products .tools-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: var(--tools-hairline);
  color: var(--paper);
  font-weight: 400;
}

.page-products .tools-table thead th {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--panel-raise);
}

.page-products .tools-table tbody tr:nth-child(even) {
  background: rgba(23, 48, 79, 0.5);
}

.page-products .tools-table tbody th {
  font-weight: 500;
}

.page-products .tools-table__diff {
  border-left: 3px solid var(--red-bright);
  color: var(--red-bright);
}

.page-products .tools-table__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 22px;
  color: var(--muted);
}

.page-products .tools-archive__aside {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 28px);
  align-content: start;
}

.page-products .tools-archive__figure {
  margin: 0;
}

.page-products .tools-archive__figure .figure__media {
  aspect-ratio: 3 / 2;
  border: var(--tools-hairline);
  background: var(--panel);
}

.page-products .tools-archive__panel {
  background: var(--cream);
  color: var(--night);
  padding: 20px 18px;
  box-shadow: calc(var(--tools-offset) * -1) var(--tools-offset) 0 0 rgba(10, 26, 47, 0.6);
}

.page-products .tools-archive__panel-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  line-height: 26px;
}

.page-products .tools-archive__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .tools-archive__list li {
  position: relative;
  padding: 10px 0 10px 18px;
  font-size: 14px;
  line-height: 22px;
  border-top: 1px solid rgba(10, 26, 47, 0.18);
}

.page-products .tools-archive__list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: rgba(10, 26, 47, 0.45);
}

/* ---------- 版本演进 ---------- */
.page-products .tools-timeline {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--tools-hairline);
}

.page-products .tools-timeline__item {
  position: relative;
  padding: 22px 4px 22px 20px;
  border-bottom: var(--tools-hairline);
  border-left: 3px solid var(--rule);
}

.page-products .tools-timeline__item--now {
  border-left-color: var(--l-green);
  background: linear-gradient(90deg, rgba(31, 160, 122, 0.14), transparent 62%);
}

.page-products .tools-timeline__ver {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--l-yellow);
}

.page-products .tools-timeline__item--now .tools-timeline__ver {
  color: var(--l-green);
}

.page-products .tools-timeline__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 18px;
  line-height: 26px;
  color: var(--paper);
}

.page-products .tools-timeline__body {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 24px;
  color: var(--muted);
}

/* ---------- 使用边界 ---------- */
.page-products .tools-scope__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
}

.page-products .tools-scope__body {
  margin: 0 0 16px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper);
  opacity: 0.92;
}

.page-products .tools-scope__links {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--tools-hairline);
}

.page-products .tools-scope__links li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  border-bottom: var(--tools-hairline);
}

.page-products .tools-scope__links a {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 24px;
  color: var(--l-blue);
  text-decoration: none;
}

.page-products .tools-scope__links a:hover,
.page-products .tools-scope__links a:focus-visible {
  color: var(--l-yellow);
}

.page-products .tools-scope__links span {
  font-size: 13px;
  line-height: 22px;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-products .tools-index__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .tools-index__item + .tools-index__item {
    border-top: 0;
  }
  .page-products .tools-index__item {
    border-bottom: var(--tools-hairline);
  }
  .page-products .tools-index__item:nth-child(odd) {
    border-right: var(--tools-hairline);
  }
  .page-products .tools-index__link {
    padding: 16px 18px;
  }
  .page-products .tools-ios__track .band__item,
  .page-products .tools-stats__track .band__item {
    flex: 0 0 46%;
    max-width: 46%;
  }
  .page-products .tools-table__caption {
    font-size: 13px;
  }
}

@media (min-width: 900px) {
  .page-products .tools-hero__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: clamp(28px, 3vw, 44px);
    align-items: start;
  }
  .page-products .tools-hero__copy {
    grid-column: 1 / span 7;
  }
  .page-products .tools-hero__media {
    grid-column: 8 / span 5;
  }
  .page-products .tools-index__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .tools-index__item:nth-child(odd) {
    border-right: var(--tools-hairline);
  }
  .page-products .tools-index__item:nth-child(3n) {
    border-right: 0;
  }

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

  .page-products .tools-section__head--split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: end;
    gap: clamp(24px, 4vw, 56px);
  }

  .page-products .tools-ios__track .band__item,
  .page-products .tools-stats__track .band__item {
    flex: 0 0 300px;
    max-width: 300px;
  }

  .page-products .tools-ios__foot {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    align-items: start;
  }

  .page-products .tools-archive__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-products .tools-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 0;
  }
  .page-products .tools-timeline__item {
    border-top: var(--tools-hairline);
    border-bottom: 0;
    border-left: 3px solid var(--rule);
    padding: 24px 18px 24px 22px;
    min-height: 100%;
  }
  .page-products .tools-timeline__item + .tools-timeline__item {
    border-left-color: var(--rule);
  }
  .page-products .tools-timeline__item--now {
    border-left-color: var(--l-green);
    background: linear-gradient(180deg, rgba(31, 160, 122, 0.16), transparent 70%);
  }

  .page-products .tools-scope__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-products .tools-scope__links li {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 1200px) {
  .page-products .tools-index__list {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
  .page-products .tools-index__item {
    border-right: var(--tools-hairline);
  }
  .page-products .tools-index__item:last-child {
    border-right: 0;
  }
  .page-products .tools-hero__copy {
    grid-column: 1 / span 6;
  }
  .page-products .tools-hero__media {
    grid-column: 8 / span 5;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .tools-tier,
  .page-products .tools-ios__card,
  .page-products .tools-index__link {
    transition: none;
  }
  .page-products .tools-tier:hover,
  .page-products .tools-ios__card:hover {
    transform: none;
  }
}
</main>