/* ============================================================
   业务中心 /business/ — 页面专属样式
   作用域限定：.page-products
   ============================================================ */

.page-products {
  --line-a1: var(--amber);
  --line-a2: var(--teal);
  --line-a3: var(--silver);
  --line-a4: var(--red-soft);
  --edge: var(--ink-700);
  --card-bg: var(--ink-800);
  --panel-gap: clamp(20px, 3vw, 36px);
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-products .biz-crumb {
  padding-top: clamp(16px, 3vw, 30px);
}

/* ---------- 通用文本 ---------- */
.page-products .biz-lead {
  max-width: 62ch;
  margin: 12px 0 0;
  color: var(--silver);
  font-size: calc(16px * var(--font-scale));
  line-height: 1.78;
}

.page-products .biz-p {
  max-width: 62ch;
  margin: 10px 0 0;
  color: var(--silver-dim);
  font-size: calc(15px * var(--font-scale));
  line-height: 1.8;
}

.page-products .biz-sub {
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding-left: 10px;
  border-left: 3px solid var(--amber);
  color: var(--paper);
  font-size: calc(16px * var(--font-scale));
  font-weight: 700;
  letter-spacing: .04em;
}

/* ---------- 区块节奏 ---------- */
.page-products .biz-section {
  padding-block: clamp(48px, 7vw, 96px);
  border-top: 1px solid var(--ink-800);
}

.page-products .biz-section .section__head {
  margin-bottom: clamp(24px, 3.5vw, 40px);
}

/* ---------- 首屏 ---------- */
.page-products .biz-hero {
  padding-bottom: clamp(40px, 6vw, 76px);
}

.page-products .biz-hero .wrap {
  display: grid;
  gap: var(--panel-gap);
  align-items: start;
}

.page-products .biz-hero__frame {
  position: relative;
  border: 1px solid var(--edge);
  background:
    linear-gradient(160deg, rgba(18, 34, 56, .92) 0%, rgba(11, 22, 34, .72) 62%),
    repeating-linear-gradient(90deg, rgba(29, 51, 80, .55) 0 1px, transparent 1px 48px);
  padding: clamp(24px, 4vw, 52px);
  overflow: hidden;
}

.page-products .biz-hero__frame::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 8px;
  background: repeating-linear-gradient(90deg, var(--amber) 0 2px, transparent 2px 18px);
  opacity: .55;
}

.page-products .biz-hero__stamp {
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 4px 9px;
  border: 1px solid var(--ink-700);
  color: var(--silver-dim);
  font-size: 11px;
  letter-spacing: .16em;
}

.page-products .biz-hero__title {
  margin: 14px 0 0;
  max-width: 20ch;
  color: var(--paper);
  font-family: var(--font-display);
  font-size: clamp(28px, 5.4vw, 52px);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: .05em;
}

.page-products .biz-hero__stats {
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--edge);
  border: 1px solid var(--edge);
}

.page-products .biz-hero__stat {
  background: var(--card-bg);
  padding: 14px clamp(12px, 2vw, 18px);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-products .biz-hero__num {
  color: var(--amber-soft);
  font-size: clamp(20px, 2.6vw, 26px);
  line-height: 1.1;
  letter-spacing: .02em;
}

.page-products .biz-hero__label {
  color: var(--silver-dim);
  font-size: 12px;
  letter-spacing: .12em;
}

.page-products .biz-hero__aside {
  display: grid;
  gap: 14px;
  align-content: start;
  padding-top: 4px;
}

.page-products .biz-hero__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 6px 0 0;
}

/* ---------- 技能树路径 ---------- */
.page-products .tree {
  list-style: none;
  margin: clamp(30px, 4.5vw, 52px) 0 0;
  padding: 0;
}

.page-products .tree__step {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: clamp(22px, 3vw, 34px);
}

.page-products .tree__step::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 50px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--ink-700) 0%, rgba(29, 51, 80, .25) 100%);
}

.page-products .tree__step:last-child::before {
  content: none;
}

.page-products .tree__num {
  place-self: start;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--edge);
  background: var(--card-bg);
  color: var(--silver-dim);
  font-size: 14px;
  letter-spacing: .04em;
  transition:
    color var(--dur) var(--ease),
    background-color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-products .tree__step:hover .tree__num,
.page-products .tree__step:focus-within .tree__num {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink-900);
}

.page-products .tree__body {
  border-left: 1px solid var(--ink-800);
  padding: 4px 0 8px clamp(14px, 2.4vw, 24px);
  transition: border-color var(--dur) var(--ease);
}

.page-products .tree__step:hover .tree__body,
.page-products .tree__step:focus-within .tree__body {
  border-left-color: var(--amber);
}

.page-products .tree__title {
  margin: 0;
  color: var(--paper);
  font-size: calc(17px * var(--font-scale));
  font-weight: 700;
  letter-spacing: .04em;
}

.page-products .tree__text {
  margin: 8px 0 0;
  max-width: 58ch;
  color: var(--silver-dim);
  font-size: calc(15px * var(--font-scale));
  line-height: 1.78;
}

.page-products .tree__prep {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 12px 0 0;
  padding: 9px 12px;
  border: 1px dashed var(--ink-700);
  color: var(--silver);
  font-size: 13px;
  line-height: 1.6;
  transition:
    border-color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-products .tree__step:hover .tree__prep,
.page-products .tree__step:focus-within .tree__prep {
  border-color: var(--amber);
  background: rgba(214, 154, 45, .06);
}

/* ---------- 图版 ---------- */
.page-products .biz-figure-top {
  margin: 0 0 clamp(28px, 4vw, 44px);
}

.page-products .frame__media {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--ink-800);
}

/* ---------- 定制方案 ---------- */
.page-products .biz-custom__grid {
  display: grid;
  gap: var(--panel-gap);
}

.page-products .biz-custom__side {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-products .check-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .check-list__item {
  position: relative;
  padding-left: 22px;
  color: var(--silver);
  font-size: calc(15px * var(--font-scale));
  line-height: 1.75;
}

.page-products .check-list__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 9px;
  height: 9px;
  border: 1px solid var(--amber);
  background: rgba(214, 154, 45, .18);
}

/* ---------- 适配记录 ---------- */
.page-products .biz-records__grid {
  display: grid;
  gap: var(--panel-gap);
  align-items: start;
}

.page-products .biz-records__figure {
  margin: 0;
}

.page-products .biz-records__panel {
  padding: clamp(20px, 3vw, 32px);
  color: var(--ink-800);
}

.page-products .rec-dl {
  margin: 0;
  display: grid;
  gap: 18px;
}

.page-products .rec-dl__row {
  display: grid;
  gap: 6px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(29, 51, 80, .28);
}

.page-products .rec-dl__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-products .rec-dl__key {
  color: var(--ink-700);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
}

.page-products .rec-dl__val {
  margin: 0;
  color: var(--ink-800);
  font-size: calc(15px * var(--font-scale));
  line-height: 1.82;
}

/* ---------- 筛选维度条 ---------- */
.page-products .facet-strip {
  display: grid;
  gap: 12px;
  margin: 0 0 clamp(24px, 3.4vw, 36px);
  padding: clamp(16px, 2.4vw, 22px);
  border: 1px solid var(--edge);
  border-left: 4px solid var(--teal);
  background: rgba(46, 110, 126, .08);
}

.page-products .facet-strip__label {
  margin: 0;
  color: var(--silver-dim);
  font-size: 12px;
  letter-spacing: .18em;
}

.page-products .facet-strip__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .facet-strip__item {
  padding: 6px 12px;
  border: 1px solid var(--teal);
  color: var(--teal-soft);
  font-size: 13px;
  line-height: 1.5;
}

/* ---------- 周期表 ---------- */
.page-products .cyc-scope {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products .cyc-scope .filter-field {
  margin-bottom: 16px;
}

.page-products .cyc-scroll {
  overflow-x: auto;
  border: 1px solid var(--edge);
  background: var(--ink-900);
  -webkit-overflow-scrolling: touch;
}

.page-products .cyc-scroll:focus-visible {
  outline: 2px solid var(--amber-soft);
  outline-offset: 2px;
}

.page-products .cyc-table {
  width: 100%;
  min-width: 700px;
  border-collapse: collapse;
  font-size: calc(14px * var(--font-scale));
}

.page-products .cyc-table__caption {
  padding: 12px 16px;
  text-align: left;
  color: var(--silver-dim);
  font-size: 12px;
  letter-spacing: .1em;
  border-bottom: 1px solid var(--edge);
}

.page-products .cyc-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  padding: 12px 16px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--edge);
  color: var(--silver);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  text-align: left;
  white-space: nowrap;
}

.page-products .cyc-table tbody tr {
  border-bottom: 1px solid rgba(29, 51, 80, .6);
  transition: background-color var(--dur) var(--ease);
}

.page-products .cyc-table tbody tr:nth-child(even) {
  background: rgba(18, 34, 56, .55);
}

.page-products .cyc-table tbody tr:hover,
.page-products .cyc-table tbody tr:focus-within {
  background: rgba(214, 154, 45, .08);
}

.page-products .cyc-table td,
.page-products .cyc-table tbody th {
  padding: 12px 16px;
  text-align: left;
  color: var(--silver-dim);
  font-weight: 400;
  white-space: nowrap;
}

.page-products .cyc-table__id {
  position: relative;
  color: var(--silver) !important;
  font-weight: 500 !important;
  letter-spacing: .02em;
}

.page-products .line-bar {
  display: inline-block;
  width: 4px;
  height: 15px;
  margin-right: 9px;
  vertical-align: -3px;
  border-radius: 1px;
}

.page-products .line-bar--a1 { background: var(--line-a1); }
.page-products .line-bar--a2 { background: var(--line-a2); }
.page-products .line-bar--a3 { background: var(--line-a3); }
.page-products .line-bar--a4 { background: var(--line-a4); }

/* ---------- 产品线卡片 ---------- */
.page-products .line-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-products .line-card {
  position: relative;
  padding: clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--edge);
  border-left-width: 5px;
  background: var(--card-bg);
  transition:
    transform var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-products .line-card:hover,
.page-products .line-card:focus-within {
  transform: translateY(-2px);
}

.page-products .line-card--a1 { border-left-color: var(--line-a1); }
.page-products .line-card--a2 { border-left-color: var(--line-a2); }
.page-products .line-card--a3 { border-left-color: var(--line-a3); }
.page-products .line-card--a4 { border-left-color: var(--line-a4); }

.page-products .line-card__code {
  margin: 0;
  color: var(--silver-dark);
  font-size: 12px;
  letter-spacing: .24em;
}

.page-products .line-card__name {
  margin: 6px 0 0;
  color: var(--paper);
  font-size: calc(19px * var(--font-scale));
  font-weight: 800;
  letter-spacing: .06em;
}

.page-products .line-card__sample {
  margin: 10px 0 0;
  padding: 5px 9px;
  display: inline-block;
  border: 1px solid var(--ink-600);
  color: var(--amber-soft);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-products .line-card__text {
  margin: 12px 0 0;
  color: var(--silver-dim);
  font-size: calc(14px * var(--font-scale));
  line-height: 1.78;
}

/* ---------- 路径对照 ---------- */
.page-products .pick-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--edge);
  border: 1px solid var(--edge);
}

.page-products .pick-list__item {
  display: grid;
  gap: 10px;
  padding: clamp(16px, 2.4vw, 22px);
  background: var(--ink-900);
  transition: background-color var(--dur) var(--ease);
}

.page-products .pick-list__item:hover,
.page-products .pick-list__item:focus-within {
  background: var(--card-bg);
}

.page-products .pick-list__scene {
  margin: 0;
  color: var(--paper);
  font-size: calc(15px * var(--font-scale));
  font-weight: 600;
  line-height: 1.7;
}

.page-products .pick-list__route {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  color: var(--silver-dim);
  font-size: calc(14px * var(--font-scale));
  line-height: 1.7;
}

.page-products .biz-more {
  margin-top: clamp(24px, 3.5vw, 38px);
  padding: clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--edge);
  border-top: 3px solid var(--amber);
  background: rgba(18, 34, 56, .6);
  display: grid;
  gap: 14px;
}

.page-products .biz-more__text {
  margin: 0;
  max-width: 66ch;
  color: var(--silver);
  font-size: calc(15px * var(--font-scale));
  line-height: 1.78;
}

.page-products .biz-more__links {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 719px) {
  .page-products .note--vertical {
    display: none;
  }

  .page-products .biz-hero__stamp {
    position: static;
    display: inline-block;
    margin-bottom: 12px;
  }

  .page-products .tree__step {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 12px;
  }

  .page-products .tree__num {
    width: 36px;
    height: 36px;
    font-size: 12px;
  }

  .page-products .tree__step::before {
    left: 17px;
    top: 42px;
  }
}

@media (min-width: 720px) {
  .page-products .biz-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-products .biz-records__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-products .biz-hero .wrap {
    grid-template-columns: minmax(0, 1fr) minmax(240px, 300px);
  }

  .page-products .biz-custom__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(260px, 1fr);
  }

  .page-products .biz-records__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }

  .page-products .line-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .line-card:nth-child(2) {
    margin-top: 18px;
  }

  .page-products .line-card:nth-child(4) {
    margin-top: 18px;
  }

  .page-products .pick-list__item {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: center;
    gap: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .line-card:hover,
  .page-products .line-card:focus-within {
    transform: none;
  }
}