/* ============================================================
   功能中心 /features/  ·  页面作用域 .page-products
   ============================================================ */

.page-products {
  --feat-border: 2px solid var(--line-blue);
  --feat-band-res: #C2551A;
  --feat-band-col: #1B8F7C;
  --feat-band-chg: #6E8399;
  --feat-shadow: 6px 6px 0 rgba(46, 242, 206, 0.10);
  --feat-shadow-o: 6px 6px 0 rgba(255, 106, 26, 0.14);
  --feat-radius: 3px;
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 20px 0 0;
  font-size: 13px;
  color: var(--text-dim);
}
.page-products .breadcrumb a {
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .12s var(--ease), border-color .12s var(--ease);
}
.page-products .breadcrumb a:hover,
.page-products .breadcrumb a:focus-visible {
  color: var(--cyan-glow);
  border-bottom-color: var(--cyan-glow);
}
.page-products .crumb-sep { color: var(--line-blue); }
.page-products .crumb-now { color: var(--text-main); font-weight: 600; }

/* ---------- 首屏 ---------- */
.page-products .feat-hero-grid {
  display: grid;
  gap: 28px;
  padding-top: 14px;
}

.page-products .feat-hero-copy h1 {
  margin: 12px 0 18px;
  font-size: clamp(28px, 7.2vw, 48px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.page-products .feat-hero-copy .lead {
  max-width: 48ch;
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.75;
}

.page-products .feat-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* 侧栏数据卡 */
.page-products .feat-hero-side {
  border: var(--feat-border);
  border-top: 6px solid var(--signal-orange);
  border-radius: var(--feat-radius);
  background: linear-gradient(165deg, var(--ink-900) 0%, var(--ink-800) 100%);
  box-shadow: var(--feat-shadow);
  padding: 22px 20px;
}

.page-products .feat-side-title {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-family: var(--font-mono);
  text-transform: uppercase;
}

.page-products .feat-side-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-products .feat-side-list li {
  display: grid;
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-blue);
}
.page-products .feat-side-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-products .feat-side-num {
  font-size: 26px;
  font-weight: 700;
  color: var(--signal-orange);
  line-height: 1.1;
  border-bottom: 2px solid var(--cyan-glow);
  padding-bottom: 2px;
  justify-self: start;
}
.page-products .feat-side-unit {
  font-size: 14px;
  margin-left: 2px;
  color: var(--cyan-glow);
}

.page-products .feat-side-cap {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
}

/* ---------- 标签页总容器 ---------- */
.page-products .feat-tabs {
  display: grid;
  gap: 26px;
}

.page-products .feat-rail-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  font-family: var(--font-mono);
  color: var(--text-dim);
  text-transform: uppercase;
}

.page-products .feat-tablist {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-products .feat-tab {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "idx label"
    "idx sub";
  align-items: center;
  column-gap: 14px;
  row-gap: 3px;
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  background: rgba(16, 48, 76, 0.55);
  border: var(--feat-border);
  border-left: 6px solid var(--line-blue);
  border-radius: var(--feat-radius);
  color: var(--text-main);
  font-family: inherit;
  cursor: pointer;
  transition: background-color .12s var(--ease), border-color .12s var(--ease);
}
.page-products .feat-tab:hover {
  background: rgba(46, 242, 206, 0.06);
  border-color: var(--cyan-glow);
}
.page-products .feat-tab[aria-selected="true"] {
  background: rgba(255, 106, 26, 0.09);
  border-color: var(--signal-orange);
}
.page-products .feat-tab:focus-visible {
  outline: 2px solid var(--cyan-glow);
  outline-offset: 2px;
}

.page-products .feat-tab-idx {
  grid-area: idx;
  font-size: 13px;
  color: var(--cyan-glow);
}
.page-products .feat-tab-label {
  grid-area: label;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.page-products .feat-tab-sub {
  grid-area: sub;
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.5;
}
.page-products .feat-tab[aria-selected="true"] .feat-tab-idx { color: var(--signal-orange); }

/* ---------- 面板 ---------- */
.page-products .feat-panel {
  min-width: 0;
}
.page-products .feat-panel h2 {
  margin: 0 0 12px;
  font-size: clamp(22px, 4.4vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.page-products .feat-panel h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.page-products .feat-panel-lead {
  margin: 0 0 24px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* 要点列表 */
.page-products .feat-points {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-products .feat-points li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 14px 16px;
  background: rgba(11, 34, 57, 0.7);
  border: 1px solid var(--line-blue);
  border-radius: var(--feat-radius);
}
.page-products .feat-points p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-main);
}
.page-products .feat-point-k {
  font-size: 13px;
  color: var(--cyan-glow);
  padding-top: 3px;
  border-bottom: 2px solid var(--line-blue);
}

/* 图区 */
.page-products .feat-figure {
  margin: 0;
}
.page-products .feat-figure .media-frame {
  border: var(--feat-border);
  border-radius: var(--feat-radius);
  overflow: hidden;
  box-shadow: var(--feat-shadow);
  background: var(--ink-900);
}
.page-products .feat-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ---------- 索引目录三条色带 ---------- */
.page-products .feat-cats {
  display: grid;
  gap: 14px;
  margin-bottom: 26px;
}

.page-products .feat-cat {
  border: var(--feat-border);
  border-left-width: 10px;
  border-radius: var(--feat-radius);
  background: var(--ink-900);
  padding: 18px 20px;
}
.page-products .feat-cat--res { border-left-color: var(--feat-band-res); }
.page-products .feat-cat--col { border-left-color: var(--feat-band-col); }
.page-products .feat-cat--chg { border-left-color: var(--feat-band-chg); }

.page-products .feat-cat-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}
.page-products .feat-cat-head h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
}
.page-products .feat-cat-count {
  font-size: 16px;
  color: var(--text-main);
  border-bottom: 2px solid var(--cyan-glow);
  padding-bottom: 1px;
}
.page-products .feat-cat-desc {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-main);
}
.page-products .feat-cat-fit {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
}

/* ---------- 下载记录表格 ---------- */
.page-products .feat-dl-wrap {
  margin-bottom: 26px;
}

.page-products .feat-dl {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.page-products .feat-dl-caption {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  padding-bottom: 10px;
}
.page-products .feat-dl th {
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--text-dim);
  padding: 10px 12px;
  border-bottom: 2px solid var(--line-blue);
  white-space: nowrap;
}
.page-products .feat-dl td {
  padding: 12px;
  border-bottom: 1px solid var(--line-blue);
  vertical-align: top;
  line-height: 1.6;
  color: var(--text-main);
}
.page-products .feat-dl tbody tr {
  transition: background-color .1s var(--ease);
}
.page-products .feat-dl tbody tr:hover {
  background: rgba(46, 242, 206, 0.05);
}
.page-products .feat-ver {
  color: var(--cyan-glow);
  border-bottom: 2px solid rgba(46, 242, 206, 0.4);
  padding-bottom: 1px;
  white-space: nowrap;
}
.page-products .feat-dl td:nth-child(2) .mono {
  color: var(--text-dim);
  white-space: nowrap;
}
.page-products .feat-dl .tag {
  margin-right: 8px;
  vertical-align: 1px;
}

.page-products .feat-more {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* ---------- 变更标签区 ---------- */
.page-products .feat-tagsec {
  display: grid;
  gap: 24px;
}
.page-products .feat-tagsec-copy h2 {
  margin: 10px 0 12px;
  font-size: clamp(22px, 4.2vw, 30px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.22;
}
.page-products .feat-tagsec-copy p {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-dim);
}
.page-products .feat-tagcards {
  display: grid;
  gap: 12px;
}
.page-products .feat-tagcard {
  border: var(--feat-border);
  border-radius: var(--feat-radius);
  background: rgba(11, 34, 57, 0.68);
  padding: 16px 18px;
}
.page-products .feat-tagcard p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-main);
}
.page-products .feat-figure--band {
  margin-top: 8px;
}

/* ---------- 权限与安全 ---------- */
.page-products .feat-sec-grid {
  display: grid;
  gap: 30px;
}
.page-products .feat-sec-copy h2 {
  margin: 10px 0 14px;
  font-size: clamp(22px, 4.2vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.page-products .feat-sec-copy p {
  margin: 0 0 18px;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .feat-ticks {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-products .feat-ticks li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-main);
}
.page-products .feat-ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 10px;
  background: var(--cyan-glow);
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.page-products .feat-levels {
  display: grid;
  gap: 10px;
}
.page-products .feat-level {
  display: grid;
  gap: 4px;
  border: var(--feat-border);
  border-radius: var(--feat-radius);
  background: var(--ink-900);
  padding: 15px 18px;
  cursor: default;
  transition: background-color .15s var(--ease), border-color .15s var(--ease), transform .15s var(--ease);
}
.page-products .feat-level:hover,
.page-products .feat-level:focus-visible {
  background: #0F2E44;
  border-color: var(--cyan-glow);
  transform: translateX(4px);
  outline: none;
}
.page-products .feat-level--1 { border-left: 8px solid rgba(46, 242, 206, 0.28); }
.page-products .feat-level--2 { border-left: 8px solid rgba(46, 242, 206, 0.62); }
.page-products .feat-level--3 { border-left: 8px solid var(--cyan-glow); }

.page-products .feat-level-name {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
}
.page-products .feat-level-cap {
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-dim);
}
.page-products .feat-levels-note {
  margin: 12px 0 0;
  font-size: 12px;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

/* ---------- 企业定制 ---------- */
.page-products .feat-ent-head {
  max-width: 62ch;
  margin-bottom: 30px;
}
.page-products .feat-ent-head h2 {
  margin: 10px 0 14px;
  font-size: clamp(22px, 4.4vw, 34px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.page-products .feat-ent-head .lead {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .feat-ent-grid {
  display: grid;
  gap: 28px;
  align-items: start;
}

.page-products .feat-ent-sub {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  font-family: var(--font-mono);
  color: var(--cyan-glow);
  text-transform: uppercase;
}

.page-products .feat-seg {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--line-blue);
  margin-bottom: 20px;
}
.page-products .feat-seg-btn {
  background: transparent;
  border: var(--feat-border);
  border-radius: var(--feat-radius);
  color: var(--text-dim);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 9px 14px;
  cursor: pointer;
  transition: color .12s var(--ease), border-color .12s var(--ease), background-color .12s var(--ease);
}
.page-products .feat-seg-btn:hover {
  color: var(--text-main);
  border-color: var(--cyan-glow);
}
.page-products .feat-seg-btn[aria-selected="true"] {
  color: var(--ink-950);
  background: var(--cyan-glow);
  border-color: var(--cyan-glow);
  font-weight: 800;
}
.page-products .feat-seg-btn:focus-visible {
  outline: 2px solid var(--cyan-glow);
  outline-offset: 2px;
}

.page-products .feat-panel--ent p {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-products .feat-ent-fig {
  margin: 0;
}
.page-products .feat-ent-fig .media-frame {
  border: var(--feat-border);
  border-radius: var(--feat-radius);
  overflow: hidden;
  box-shadow: var(--feat-shadow-o);
  background: var(--ink-900);
}
.page-products .feat-ent-fig figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
}

.page-products .feat-ent-tail {
  margin: 30px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 收尾 CTA ---------- */
.page-products .feat-cta {
  display: grid;
  gap: 22px;
  border: var(--feat-border);
  border-left: 8px solid var(--signal-orange);
  border-radius: var(--feat-radius);
  background: linear-gradient(140deg, var(--ink-900) 0%, var(--ink-950) 100%);
  padding: 26px 22px;
  box-shadow: var(--feat-shadow);
}
.page-products .feat-cta-copy h2 {
  margin: 0 0 8px;
  font-size: clamp(20px, 3.6vw, 26px);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.page-products .feat-cta-copy p {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-dim);
}
.page-products .feat-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 文本链接 ---------- */
.page-products .text-link {
  color: var(--cyan-glow);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 242, 206, 0.45);
  transition: border-color .12s var(--ease), color .12s var(--ease);
}
.page-products .text-link:hover,
.page-products .text-link:focus-visible {
  color: var(--signal-orange);
  border-bottom-color: var(--signal-orange);
}

/* ---------- 移动端表格堆叠 ---------- */
@media (max-width: 719px) {
  .page-products .feat-dl thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }
  .page-products .feat-dl,
  .page-products .feat-dl tbody,
  .page-products .feat-dl tr,
  .page-products .feat-dl td {
    display: block;
    width: 100%;
  }
  .page-products .feat-dl tr {
    border: var(--feat-border);
    border-radius: var(--feat-radius);
    background: rgba(11, 34, 57, 0.6);
    padding: 12px 14px;
    margin-bottom: 10px;
  }
  .page-products .feat-dl tr:hover { background: rgba(11, 34, 57, 0.9); }
  .page-products .feat-dl td {
    border-bottom: 1px dashed var(--line-blue);
    padding: 8px 0;
  }
  .page-products .feat-dl td:last-child { border-bottom: 0; padding-bottom: 0; }
  .page-products .feat-dl td::before {
    content: attr(data-label);
    display: block;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--text-dim);
    margin-bottom: 4px;
  }
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-products .feat-tagcards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .feat-cats {
    gap: 16px;
  }
  .page-products .feat-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    padding: 32px 30px;
  }
  .page-products .feat-cta-actions {
    justify-content: flex-end;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-products .feat-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: start;
    padding-top: 28px;
  }
  .page-products .feat-tagsec {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 48px;
    align-items: start;
  }
  .page-products .feat-tagsec .feat-figure--band {
    grid-column: 1 / -1;
    margin-top: 16px;
  }
  .page-products .feat-sec-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 56px;
    align-items: start;
  }
  .page-products .feat-ent-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
  }
  .page-products .feat-figure--side {
    max-width: 720px;
  }
}

@media (min-width: 1080px) {
  .page-products .feat-tabs {
    grid-template-columns: minmax(230px, 3fr) minmax(0, 9fr);
    gap: 56px;
    align-items: start;
  }
  .page-products .feat-tabrail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
  .page-products .feat-panel h2 {
    margin-bottom: 14px;
  }
}

/* ---------- 减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .feat-tab,
  .page-products .feat-level,
  .page-products .feat-seg-btn,
  .page-products .feat-dl tbody tr,
  .page-products .text-link,
  .page-products .breadcrumb a {
    transition: none;
  }
  .page-products .feat-level:hover,
  .page-products .feat-level:focus-visible {
    transform: none;
  }
}