.page-products {
  --rail-w: 216px;
  --rule: 1px solid var(--line);
  padding-bottom: clamp(56px, 8vw, 120px);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */

.page-products .pr-hero {
  position: relative;
  padding-top: clamp(20px, 3vw, 34px);
  padding-bottom: clamp(40px, 6vw, 78px);
  isolation: isolate;
}

.page-products .pr-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(114deg, transparent 0 58%, rgba(34, 227, 211, .06) 58% 58.25%, transparent 58.25%),
    repeating-linear-gradient(90deg, rgba(27, 42, 68, .38) 0 1px, transparent 1px 96px),
    radial-gradient(80% 120% at 12% 0%, rgba(139, 92, 255, .14), transparent 62%);
  mask-image: linear-gradient(180deg, #000 0%, #000 72%, transparent 100%);
}

.page-products .pr-hero__top {
  display: block;
}

.page-products .pr-hero__eyebrow {
  margin: clamp(18px, 2.5vw, 30px) 0 12px;
  font-size: 11px;
  letter-spacing: .3em;
  color: var(--dim);
}

.page-products .pr-hero__title {
  margin: 0 0 clamp(16px, 2vw, 24px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 9vw, 96px);
  line-height: .98;
  letter-spacing: -.02em;
  color: var(--white);
  text-shadow: 0 0 44px rgba(34, 227, 211, .18);
}

.page-products .pr-hero__lead {
  max-width: 68ch;
  color: var(--gray);
}

.page-products .pr-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(26px, 4vw, 46px) 0 0;
  padding: 1px;
  background: var(--line);
  border: var(--rule);
}

.page-products .pr-hero__facts > div {
  background: var(--ink);
  padding: 16px 18px;
}

.page-products .pr-fact__k {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--dim);
}

.page-products .pr-fact__v {
  margin: 0;
  font-size: clamp(22px, 3.2vw, 32px);
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
}

.page-products .pr-fact__v span {
  margin-left: 6px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 500;
  color: var(--gray);
}

.page-products .pr-hero__media {
  margin: clamp(30px, 4.5vw, 56px) 0 0;
}

/* ---------- 双栏骨架 ---------- */

.page-products .arc-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 48px);
  align-items: start;
}

/* ---------- 左侧索引条 ---------- */

.page-products .arc-rail {
  min-width: 0;
  padding-bottom: 2px;
  border-bottom: var(--rule);
}

.page-products .arc-rail__cap {
  display: none;
  margin: 0;
  font-size: 10px;
  letter-spacing: .3em;
  color: var(--dim);
}

.page-products .arc-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 12px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-products .arc-rail__list::-webkit-scrollbar {
  display: none;
}

.page-products .arc-rail__item {
  flex: 0 0 auto;
}

.page-products .arc-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border: var(--rule);
  font-size: 13px;
  line-height: 1;
  white-space: nowrap;
  color: var(--gray);
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease, background-color .2s ease;
}

.page-products .arc-rail__idx {
  font-size: 11px;
  color: var(--accent);
}

.page-products .arc-rail__link:hover,
.page-products .arc-rail__link:focus-visible {
  color: var(--white);
  border-color: var(--accent-line);
  background: var(--accent-soft);
}

.page-products .arc-rail__link.is-current {
  color: var(--ink);
  background: var(--accent);
  border-color: var(--accent);
}

.page-products .arc-rail__link.is-current .arc-rail__idx {
  color: var(--accent-ink);
}

/* ---------- 内容面板 ---------- */

.page-products .arc-panels {
  min-width: 0;
}

.page-products .arc-panel {
  padding-block: clamp(32px, 4.5vw, 62px);
  border-top: var(--rule);
  scroll-margin-top: calc(var(--bar-h) + 24px);
}

.page-products .arc-panel:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .arc-panel__head {
  display: flex;
  align-items: baseline;
  gap: clamp(12px, 2vw, 22px);
  margin-bottom: clamp(18px, 2.6vw, 32px);
}

.page-products .arc-panel__idx {
  flex: 0 0 auto;
  font-size: clamp(20px, 2.8vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  letter-spacing: -.03em;
}

.page-products .arc-panel__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 3vw, 32px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-products .arc-panel__body .prose {
  max-width: 74ch;
  color: var(--gray);
}

.page-products .arc-note {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--accent);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--dim);
}

/* ---------- 表格 ---------- */

.page-products .arc-tablewrap {
  margin-top: clamp(20px, 2.6vw, 30px);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-top: var(--rule);
}

.page-products .arc-grid {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .arc-grid--slim {
  min-width: 460px;
}

.page-products .arc-grid th,
.page-products .arc-grid td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: var(--rule);
  line-height: 1.65;
}

.page-products .arc-grid thead th {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--dim);
  white-space: nowrap;
}

.page-products .arc-grid tbody th {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--accent);
  white-space: nowrap;
}

.page-products .arc-grid tbody tr:nth-child(odd) {
  background: rgba(11, 18, 32, .5);
}

.page-products .arc-grid tbody tr:hover {
  background: rgba(232, 241, 245, .045);
}

.page-products .arc-grid td {
  color: var(--gray);
}

/* ---------- 图文分栏 ---------- */

.page-products .arc-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 44px);
}

.page-products .arc-split__main {
  min-width: 0;
}

.page-products .arc-split__media {
  margin: 0;
}

/* ---------- 字段说明列表 ---------- */

.page-products .arc-fields {
  margin: clamp(22px, 3vw, 32px) 0 0;
  border-top: var(--rule);
}

.page-products .arc-fields > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  border-bottom: var(--rule);
}

.page-products .arc-fields dt {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--accent);
}

.page-products .arc-fields dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--gray);
}

/* ---------- 通栏图 ---------- */

.page-products .arc-banner {
  margin: clamp(22px, 3vw, 34px) 0 0;
}

/* ---------- 轮次列表 ---------- */

.page-products .arc-rounds {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--rule);
}

.page-products .arc-rounds li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 14px;
  padding: 15px 0;
  border-bottom: var(--rule);
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray);
  transition: background-color .2s ease;
}

.page-products .arc-rounds li:hover {
  background: rgba(232, 241, 245, .04);
}

.page-products .arc-rounds__k {
  font-size: 12px;
  font-weight: 700;
  line-height: 1.9;
  color: var(--accent);
}

/* ---------- 时长三读法 ---------- */

.page-products .arc-dials {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(22px, 3vw, 34px);
  border-top: var(--rule);
}

.page-products .arc-dial {
  padding: 22px 0;
  border-bottom: var(--rule);
}

.page-products .arc-dial__k {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .26em;
  color: var(--dim);
}

.page-products .arc-dial__t {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--white);
}

.page-products .arc-dial--cyan .arc-dial__t { box-shadow: inset 0 -2px 0 rgba(34, 227, 211, .55); }
.page-products .arc-dial--orange .arc-dial__t { box-shadow: inset 0 -2px 0 rgba(255, 122, 47, .6); }
.page-products .arc-dial--purple .arc-dial__t { box-shadow: inset 0 -2px 0 rgba(139, 92, 255, .6); }

.page-products .arc-dial__t {
  display: inline-block;
  padding-bottom: 4px;
}

.page-products .arc-dial__d {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--gray);
}

/* ---------- 统计表格 + 图 ---------- */

.page-products .arc-statrow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 38px);
  margin-top: clamp(24px, 3vw, 36px);
  align-items: start;
}

.page-products .arc-statrow__table {
  margin-top: 0;
}

.page-products .arc-statrow__media {
  margin: 0;
}

/* ---------- 双栏文章 ---------- */

.page-products .arc-duo {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(20px, 2.6vw, 30px);
  border-top: var(--rule);
}

.page-products .arc-duo__col {
  padding-block: 22px;
  border-bottom: var(--rule);
}

.page-products .arc-duo__h {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
}

.page-products .arc-duo__h::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 10px;
  background: var(--accent);
  vertical-align: 1px;
}

.page-products .arc-duo__col p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 可视化清单 ---------- */

.page-products .arc-viz {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--rule);
}

.page-products .arc-viz__item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: var(--rule);
  transition: background-color .2s ease;
}

.page-products .arc-viz__item:hover {
  background: rgba(232, 241, 245, .04);
}

.page-products .arc-viz__k {
  font-size: 12px;
  font-weight: 700;
  line-height: 1.9;
  color: var(--accent);
}

.page-products .arc-viz__t {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

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

/* ---------- 检索与服务 ---------- */

.page-products .arc-search {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 42px);
  align-items: start;
}

.page-products .arc-search__h {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
}

.page-products .arc-dims {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--rule);
}

.page-products .arc-dims__row {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 14px;
  padding: 12px 0;
  border-bottom: var(--rule);
  font-size: 14px;
  line-height: 1.7;
}

.page-products .arc-dims__k {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--accent);
}

.page-products .arc-dims__v {
  color: var(--gray);
}

.page-products .arc-search__note {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--dim);
}

.page-products .arc-search__shot {
  margin: 0;
  max-width: 300px;
}

.page-products .arc-packs {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin-top: clamp(28px, 4vw, 46px);
  border-top: var(--rule);
}

.page-products .arc-pack {
  position: relative;
  padding: 24px 0;
  border-bottom: var(--rule);
}

.page-products .arc-pack__id {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .26em;
  color: var(--dim);
}

.page-products .arc-pack__h {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--white);
}

.page-products .arc-pack__d {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

.page-products .arc-contact {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 14px 0 14px 16px;
  border-left: 2px solid var(--accent);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--dim);
}

/* ---------- 图片占位统一处理 ---------- */

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

.page-products .media__frame {
  overflow: hidden;
}

/* ---------- 断点 ---------- */

@media (min-width: 620px) {
  .page-products .arc-fields > div {
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

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

  .page-products .arc-dial {
    padding: 22px 22px;
    border-bottom: 0;
    border-left: var(--rule);
  }

  .page-products .arc-dial:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .page-products .arc-dial:last-child {
    padding-right: 0;
  }
}

@media (min-width: 780px) {
  .page-products .pr-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .arc-split--draw {
    grid-template-columns: minmax(0, 1fr) minmax(240px, 330px);
  }

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

  .page-products .arc-duo__col:first-child {
    padding-right: clamp(22px, 3vw, 44px);
    border-right: var(--rule);
  }

  .page-products .arc-duo__col:last-child {
    padding-left: clamp(22px, 3vw, 44px);
  }
}

@media (min-width: 900px) {
  .page-products .arc-search {
    grid-template-columns: minmax(0, 1fr) 280px;
  }

  .page-products .arc-search__shot {
    max-width: none;
  }

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

  .page-products .arc-pack {
    padding: 26px clamp(20px, 2.4vw, 34px);
    border-bottom: 0;
    border-left: var(--rule);
  }

  .page-products .arc-pack:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .page-products .arc-pack:last-child {
    padding-right: 0;
  }
}

@media (min-width: 1000px) {
  .page-products .arc-shell {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
  }

  .page-products .arc-rail {
    position: sticky;
    top: calc(var(--bar-h) + 26px);
    padding-bottom: 0;
    border-bottom: 0;
  }

  .page-products .arc-rail__cap {
    display: block;
    margin: 0 0 16px;
    padding-left: 15px;
  }

  .page-products .arc-rail__list {
    display: block;
    padding: 0;
    overflow: visible;
  }

  .page-products .arc-rail__item + .arc-rail__item {
    margin-top: 2px;
  }

  .page-products .arc-rail__link {
    display: flex;
    width: 100%;
    padding: 11px 14px;
    border: 0;
    border-left: 2px solid transparent;
    background: transparent;
    font-size: 14px;
  }

  .page-products .arc-rail__link:hover,
  .page-products .arc-rail__link:focus-visible {
    border-left-color: var(--accent-line);
    background: rgba(232, 241, 245, .04);
  }

  .page-products .arc-rail__link.is-current {
    border-left-color: var(--accent);
    background: var(--accent-soft);
    color: var(--white);
  }
}

@media (min-width: 1100px) {
  .page-products .arc-statrow {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 400px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .arc-rail__link,
  .page-products .arc-rounds li,
  .page-products .arc-viz__item {
    transition: none;
  }
}