/* ===== 下载中心 /download/ 页面专属样式 ===== */
.page-products {
  --dl-edge: rgba(34, 211, 238, 0.5);
  --dl-edge-soft: rgba(255, 255, 255, 0.07);
  overflow-x: hidden;
}

/* --- 面包屑 --- */
.page-products .crumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  max-width: var(--wrap);
  margin: 22px auto 0;
  padding-inline: var(--pad);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-products .crumb a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}
.page-products .crumb a:hover,
.page-products .crumb a:focus-visible {
  border-bottom-color: var(--cyan);
}
.page-products .crumb__sep {
  color: rgba(255, 255, 255, 0.3);
}

/* --- 首屏 --- */
.page-products .dl-hero {
  display: grid;
  gap: 18px;
}
.page-products .dl-hero__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-products .dl-hero__title {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7vw, 66px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.page-products .dl-hero__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--muted);
}
.page-products .dl-hero__facts {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--ink);
}
.page-products .dl-hero__facts li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.page-products .dl-hero__media {
  margin: 12px 0 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.page-products .media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-products .sec__lead {
  max-width: 64ch;
}

/* --- 下载三面板 --- */
.page-products .dl-stage {
  display: grid;
  gap: 26px;
  margin-top: 26px;
}
.page-products .dl-card {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 24px 22px 26px;
  border-left: 6px solid var(--cyan);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.page-products .dl-card:hover {
  border-left-color: var(--amber);
}
.page-products .dl-card--web {
  border-left-color: var(--neon);
}
.page-products .dl-card--web:hover {
  border-left-color: var(--amber);
}
.page-products .dl-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}
.page-products .dl-card__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--muted);
}
.page-products .dl-card__name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 23px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-products .dl-card__icon {
  width: 64px;
  height: 64px;
  border: 2px solid var(--line);
  background: var(--void);
  overflow: hidden;
  display: grid;
  place-items: center;
}
.page-products .dl-card__icon img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-products .dl-card__icon--mono span {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--neon);
}
.page-products .dl-card__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* --- 规格行 --- */
.page-products .spec-list {
  list-style: none;
  margin: 0;
  padding: 14px 0 0;
  border-top: 2px solid var(--line-soft);
  display: grid;
  gap: 9px;
}
.page-products .spec-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
}
.page-products .spec-list li > span:first-child {
  color: var(--muted);
  letter-spacing: 0.06em;
}
.page-products .spec-list b {
  color: var(--amber);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-align: right;
}

/* --- 板块清单 --- */
.page-products .board-grid {
  display: grid;
  margin-top: 24px;
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}
.page-products .board-row {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 6px 14px;
  padding: 20px 22px;
  border-bottom: 2px solid var(--line-soft);
  transition: background 0.16s ease, box-shadow 0.16s ease;
}
.page-products .board-row:hover {
  background: rgba(34, 211, 238, 0.07);
  box-shadow: inset 5px 0 0 var(--cyan);
}
.page-products .board-row__num {
  grid-column: 1;
  grid-row: 1;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}
.page-products .board-row__name {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.3;
  color: var(--ink);
}
.page-products .board-row__desc {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  max-width: 46ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}
.page-products .board-row__meta {
  grid-column: 2;
  grid-row: 3;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

/* --- 版本节奏 --- */
.page-products .cadence__now {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 26px 24px;
  border-left: 6px solid var(--neon);
}
.page-products .cadence__ver {
  font-family: var(--font-mono);
  font-size: clamp(38px, 8vw, 58px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--amber);
}
.page-products .cadence__now p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}
.page-products .cadence__list {
  list-style: none;
  margin: 0;
  padding: 4px 0 4px 26px;
  border-left: 2px solid var(--line);
  display: grid;
  gap: 24px;
}
.page-products .cadence__list li {
  position: relative;
  display: grid;
  gap: 5px;
}
.page-products .cadence__list li::before {
  content: "";
  position: absolute;
  left: -33px;
  top: 7px;
  width: 10px;
  height: 10px;
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(34, 211, 238, 0.7);
}
.page-products .cadence__list h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.35;
  color: var(--ink);
}
.page-products .cadence__list p {
  margin: 0;
  max-width: 52ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* --- 系统要求表格 --- */
.page-products .req-grid {
  display: grid;
  gap: 24px;
  margin-top: 22px;
}
.page-products .req-card {
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
}
.page-products .req-card__cap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 2px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
}
.page-products .req-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 13.5px;
}
.page-products .req-table th,
.page-products .req-table td {
  text-align: left;
  padding: 12px 18px;
  border-bottom: 2px solid var(--line-soft);
  vertical-align: top;
  line-height: 1.6;
}
.page-products .req-table tbody tr:last-child th,
.page-products .req-table tbody tr:last-child td {
  border-bottom: 0;
}
.page-products .req-table tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.035);
}
.page-products .req-table th[scope="row"] {
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--muted);
  width: 34%;
}
.page-products .req-table td {
  color: var(--ink);
}

/* --- 安装流程 --- */
.page-products .flow-media {
  margin: 0 0 28px;
  aspect-ratio: 5 / 2;
  overflow: hidden;
}
.page-products .flow {
  display: grid;
  gap: 16px;
}
.page-products .step {
  position: relative;
  z-index: 1;
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
  transition: border-color 0.16s ease, box-shadow 0.16s ease;
}
.page-products .step:hover {
  border-color: var(--dl-edge);
}
.page-products .step[open] {
  border-color: var(--cyan);
}
.page-products .step > summary {
  cursor: pointer;
  list-style: none;
  display: grid;
  gap: 6px;
  padding: 18px 20px;
}
.page-products .step > summary::-webkit-details-marker {
  display: none;
}
.page-products .step > summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}
.page-products .step__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}
.page-products .step__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
  color: var(--ink);
}
.page-products .step__hint {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
}
.page-products .step__body {
  padding: 0 20px 18px;
  border-top: 2px solid var(--line-soft);
}
.page-products .step__body p {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* --- 校验与安全 --- */
.page-products .verify {
  display: grid;
  gap: 28px;
  align-items: start;
}
.page-products .verify__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.page-products .verify__list li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}
.page-products .verify__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 14px;
  height: 2px;
  background: var(--cyan);
}
.page-products .verify__media {
  margin: 0;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

/* --- 后续入口 --- */
.page-products .next-grid {
  display: grid;
  gap: 20px;
  margin-top: 24px;
}
.page-products .next-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px 20px;
  border: 2px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.16s ease, transform 0.16s ease;
}
.page-products .next-card:hover,
.page-products .next-card:focus-visible {
  border-color: var(--amber);
  transform: translateY(-4px);
  outline: none;
}
.page-products .next-card__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}
.page-products .next-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.35;
  color: var(--ink);
}
.page-products .next-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}
.page-products .next-card__go {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

/* --- 中等屏 --- */
@media (min-width: 760px) {
  .page-products .board-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .board-row:nth-child(odd) {
    border-right: 2px solid var(--line-soft);
  }
  .page-products .req-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* --- 桌面 --- */
@media (min-width: 900px) {
  .page-products .dl-stage {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 28px;
  }
  .page-products .dl-stage > :nth-child(2) {
    margin-top: -18px;
  }
  .page-products .verify {
    grid-template-columns: 7fr 5fr;
    gap: 40px;
  }
  .page-products .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    position: relative;
  }
  .page-products .flow::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 30px;
    height: 2px;
    background: linear-gradient(90deg, var(--neon), var(--cyan));
    opacity: 0.65;
  }
}

@media (min-width: 1080px) {
  .page-products .next-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* --- 窄屏收纳 --- */
@media (max-width: 600px) {
  .page-products .dl-hero__title {
    max-width: none;
  }
  .page-products .board-row {
    grid-template-columns: 34px minmax(0, 1fr);
    padding: 18px 16px;
    gap: 6px 10px;
  }
  .page-products .req-table th,
  .page-products .req-table td {
    padding: 10px 12px;
    font-size: 12.5px;
  }
  .page-products .req-table th[scope="row"] {
    width: 38%;
  }
  .page-products .cadence__now {
    padding: 22px 18px;
  }
  .page-products .cadence__list {
    padding-left: 20px;
  }
  .page-products .cadence__list li::before {
    left: -27px;
  }
  .page-products .spec-list li {
    flex-wrap: wrap;
    gap: 2px 10px;
  }
  .page-products .spec-list b {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .next-card,
  .page-products .step,
  .page-products .board-row,
  .page-products .dl-card {
    transition: none;
  }
  .page-products .next-card:hover,
  .page-products .next-card:focus-visible {
    transform: none;
  }
}
</main>