/* =========================================================
   page-products · 下载专区
   全部选择器限定在 .page-products 作用域内
   ========================================================= */

.page-products {
  --res-col-num: 2.25rem;
  --res-col-num-lg: 3.5rem;
  --sec-space: clamp(2.5rem, 5.5vw, 4rem);
  --sec-head-gap: clamp(1.5rem, 3vw, 2.25rem);
  --block-gap: clamp(1.75rem, 3vw, 2.5rem);
  overflow-x: clip;
}

/* ---------- 面包屑 ---------- */
.page-products .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  padding-top: 1.25rem;
  font-size: .875rem;
  line-height: 1.5;
  color: var(--mute);
}
.page-products .crumbs a {
  color: var(--glacier);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-products .crumbs a:hover {
  color: var(--red-deep);
  border-bottom-color: currentColor;
}
.page-products .crumbs [aria-current="page"] {
  color: var(--ink);
  font-weight: 600;
}
.page-products .crumbs__sep {
  color: var(--line);
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero.tint-band {
  padding: clamp(2rem, 5vw, 3.5rem) 0 clamp(2.5rem, 6vw, 4.5rem);
}
.page-products .prod-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
}
@media (min-width: 900px) {
  .page-products .prod-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(250px, .8fr);
    align-items: end;
    gap: clamp(2rem, 5vw, 4rem);
  }
}
.page-products .prod-hero__kicker {
  margin: 0 0 .85rem;
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--fir);
}
.page-products .prod-hero h1 {
  margin: 0 0 1.25rem;
  font-size: clamp(1.85rem, 4.2vw, 3.1rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 18em;
}
.page-products .prod-hero__lead {
  margin: 0 0 1.75rem;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--mute);
  max-width: 42em;
}
@media (min-width: 720px) {
  .page-products .prod-hero__lead {
    font-size: 1.0625rem;
  }
}
.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .875rem;
}

/* 首屏右侧概况面板 */
.page-products .prod-hero__panel {
  padding: 1.5rem 1.35rem 1.4rem;
  background: var(--sheet);
  border: 1px solid var(--ink);
  box-shadow: 8px 8px 0 var(--glacier-tint);
}
.page-products .hero-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem 1rem;
}
.page-products .hero-stats__item {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  min-width: 0;
}
.page-products .hero-stats__num {
  font-size: clamp(1.7rem, 3.4vw, 2.3rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--fir);
  font-variant-numeric: tabular-nums;
}
.page-products .hero-stats__label {
  font-size: .8125rem;
  line-height: 1.5;
  color: var(--mute);
}

/* ---------- 章节通用 ---------- */
.page-products .prod-sec {
  padding-top: var(--sec-space);
}
.page-products .rule {
  margin: var(--block-gap) 0 0;
}

.page-products .sec-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: .85rem;
  margin-bottom: var(--sec-head-gap);
}
@media (min-width: 720px) {
  .page-products .sec-head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 1.25rem 1.75rem;
    align-items: start;
  }
}
.page-products .sec-head__body {
  min-width: 0;
}
.page-products .sec-num {
  display: block;
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: .9;
  letter-spacing: -0.05em;
  color: var(--fir);
  font-variant-numeric: tabular-nums;
}
.page-products .sec-head__title {
  margin: 0 0 .7rem;
  font-size: clamp(1.35rem, 2.9vw, 1.85rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-products .sec-head__lead {
  margin: 0;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--mute);
  max-width: 40em;
}

/* ---------- 图片容器 ---------- */
.page-products .media-frame {
  margin: 0;
  min-width: 0;
}
.page-products .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--sheet);
  object-fit: cover;
}
.page-products .media-frame__caption {
  margin-top: .75rem;
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 01 三类资源 ---------- */
.page-products .type-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: var(--block-gap);
}
@media (min-width: 760px) {
  .page-products .type-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.page-products .type-card {
  background: var(--sheet);
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
  min-width: 0;
}
.page-products .type-card__key {
  margin: 0 0 .85rem;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--fir);
}
.page-products .type-card__title {
  margin: 0 0 .65rem;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
}
.page-products .type-card__text {
  margin: 0 0 1.1rem;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--mute);
}
.page-products .type-card__meta {
  list-style: none;
  margin: 0;
  padding: .85rem 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: .4rem;
  font-size: .8125rem;
  color: var(--mute);
}
.page-products .type-card__meta li {
  display: flex;
  gap: .5rem;
  line-height: 1.5;
}
.page-products .type-card__meta span {
  flex: 0 0 3.2em;
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 02 筛选与资源清单 ---------- */
.page-products .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  padding-bottom: 1.25rem;
  margin-bottom: .25rem;
}
.page-products .filter-chip {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--sheet);
  color: var(--ink);
  font: inherit;
  font-size: .8125rem;
  font-weight: 600;
  line-height: 1.2;
  padding: .55rem .95rem;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              color var(--dur) var(--ease);
}
.page-products .filter-chip:hover {
  border-color: var(--ink);
}
.page-products .filter-chip[aria-pressed="true"] {
  background: var(--fir);
  border-color: var(--fir);
  color: #fff;
}
.page-products .filter-status {
  margin-left: auto;
  font-size: .75rem;
  font-variant-numeric: tabular-nums;
  color: var(--mute);
}
@media (max-width: 560px) {
  .page-products .filter-status {
    margin-left: 0;
    flex-basis: 100%;
  }
}

.page-products .res-list {
  border-top: 1px solid var(--line);
}
.page-products .res-row {
  display: grid;
  grid-template-columns: var(--res-col-num) minmax(0, 1fr);
  gap: .75rem 1rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
@media (min-width: 760px) {
  .page-products .res-row {
    grid-template-columns: var(--res-col-num-lg) minmax(0, 1fr) auto;
    gap: 1.25rem 1.75rem;
    padding: 1.75rem 0;
  }
}
.page-products .res-row__num {
  font-size: clamp(1.4rem, 2.4vw, 1.95rem);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--fir);
  font-variant-numeric: tabular-nums;
  padding-top: .1rem;
}
.page-products .res-row__main {
  min-width: 0;
}
.page-products .res-row__title {
  margin: 0 0 .5rem;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}
.page-products .res-row__desc {
  margin: 0 0 .9rem;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--mute);
  max-width: 42em;
}
.page-products .res-row__fields {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .5rem .9rem;
  font-size: .8125rem;
}
@media (min-width: 620px) {
  .page-products .res-row__fields {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
.page-products .res-row__fields li {
  display: flex;
  flex-direction: column;
  gap: .1rem;
  min-width: 0;
}
.page-products .res-field__k {
  font-size: .6875rem;
  letter-spacing: .06em;
  color: var(--mute);
}
.page-products .res-field__v {
  color: var(--ink);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.5;
}
.page-products .res-row__side {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
}
@media (min-width: 760px) {
  .page-products .res-row__side {
    grid-column: auto;
    flex-direction: column;
    align-items: flex-end;
    gap: .65rem;
    padding-top: .15rem;
  }
}
.page-products .copy-btn {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--mute);
  font: inherit;
  font-size: .75rem;
  font-weight: 600;
  line-height: 1.2;
  padding: .35rem .7rem;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-products .copy-btn:hover {
  border-color: var(--glacier);
  color: var(--glacier);
}
.page-products .copy-btn[data-copied] {
  border-color: var(--fir);
  color: var(--fir);
}

/* ---------- 03 系统适配 ---------- */
.page-products .sys-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: var(--block-gap);
}
@media (min-width: 760px) {
  .page-products .sys-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}
.page-products .sys-cell {
  background: var(--sheet);
  padding: clamp(1.1rem, 2.2vw, 1.5rem);
  min-width: 0;
}
.page-products .sys-cell__bar {
  display: block;
  width: 1.6rem;
  height: 3px;
  margin-bottom: .8rem;
  background: var(--fir);
}
.page-products .sys-cell:nth-child(1) .sys-cell__bar { background: var(--glacier); }
.page-products .sys-cell:nth-child(2) .sys-cell__bar { background: var(--fir); }
.page-products .sys-cell:nth-child(3) .sys-cell__bar { background: var(--red); }
.page-products .sys-cell:nth-child(4) .sys-cell__bar { background: var(--glacier); }
.page-products .sys-cell__name {
  margin: 0 0 .45rem;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
}
.page-products .sys-cell__note {
  margin: 0;
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 04 步骤 ---------- */
.page-products .steps-wrap {
  margin-bottom: var(--block-gap);
}
.page-products .steps-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .85rem 1.1rem;
  background: var(--glacier-tint);
  border: 1px solid var(--line);
  font-size: .8125rem;
  line-height: 1.4;
  margin-bottom: .25rem;
}
.page-products .steps-bar__label {
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--glacier);
}
.page-products .steps-bar__count {
  font-weight: 700;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.page-products .steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.page-products .steps__item {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
  transition: background-color var(--dur) var(--ease);
}
.page-products .steps__item.is-done {
  background: var(--fir-tint);
}
.page-products .steps__box {
  appearance: none;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--sheet);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease);
}
.page-products .steps__box::after {
  content: "";
  display: block;
  width: .55rem;
  height: .95rem;
  border-right: 2px solid var(--sheet);
  border-bottom: 2px solid var(--sheet);
  transform: rotate(45deg) translate(-1px, -2px);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.page-products .steps__box:hover {
  border-color: var(--fir);
}
.page-products .steps__box:focus-visible {
  outline: 2px solid var(--glacier);
  outline-offset: 2px;
}
.page-products .steps__item.is-done .steps__box {
  background: var(--fir);
  border-color: var(--fir);
}
.page-products .steps__item.is-done .steps__box::after {
  opacity: 1;
}
.page-products .steps__body {
  min-width: 0;
  padding-top: .2rem;
}
.page-products .steps__title {
  margin: 0 0 .35rem;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}
.page-products .steps__item.is-done .steps__title {
  color: var(--fir);
}
.page-products .steps__body p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--mute);
  max-width: 42em;
}

/* ---------- 05 字段说明 ---------- */
.page-products .field-guide {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}
@media (min-width: 900px) {
  .page-products .field-guide {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
}
.page-products .field-legend {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.page-products .field-legend__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: .35rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}
@media (min-width: 600px) {
  .page-products .field-legend__row {
    grid-template-columns: 8.5rem minmax(0, 1fr);
    gap: 1rem;
    align-items: baseline;
  }
}
.page-products .field-legend dt {
  margin: 0;
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--fir);
}
.page-products .field-legend dd {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--mute);
}

/* ---------- 06 排错 ---------- */
.page-products .trouble-list {
  display: grid;
  gap: .5rem;
  margin-bottom: var(--block-gap);
}
.page-products .trouble {
  border: 1px solid var(--line);
  background: var(--sheet);
}
.page-products .trouble summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: .8rem;
  padding: 1rem 1.15rem;
  font-size: .9375rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
  transition: background-color var(--dur) var(--ease);
}
.page-products .trouble summary::-webkit-details-marker {
  display: none;
}
.page-products .trouble summary::before {
  content: "";
  flex: 0 0 auto;
  width: .58rem;
  height: .58rem;
  margin-top: .42rem;
  border-right: 2px solid var(--glacier);
  border-bottom: 2px solid var(--glacier);
  transform: rotate(-45deg);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-products .trouble[open] summary::before {
  transform: rotate(45deg);
  border-color: var(--fir);
}
.page-products .trouble summary:hover {
  background: var(--glacier-tint);
}
.page-products .trouble summary:focus-visible {
  outline: 2px solid var(--glacier);
  outline-offset: -2px;
}
.page-products .trouble__body {
  padding: 1rem 1.15rem 1.15rem;
  border-top: 1px solid var(--line);
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--mute);
}
.page-products .trouble__body p {
  margin: 0 0 .75rem;
}
.page-products .trouble__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 07 下一步入口 ---------- */
.page-products .next-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
@media (min-width: 760px) {
  .page-products .next-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.page-products .next-card {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
  background: var(--sheet);
  color: inherit;
  text-decoration: none;
  min-width: 0;
  transition: background-color var(--dur) var(--ease);
}
.page-products .next-card:hover {
  background: var(--glacier-tint);
}
.page-products .next-card:focus-visible {
  outline: 2px solid var(--glacier);
  outline-offset: -2px;
}
.page-products .next-card__num {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--glacier);
  font-variant-numeric: tabular-nums;
}
.page-products .next-card__title {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.42;
  color: var(--ink);
}
.page-products .next-card__text {
  margin: 0;
  flex: 1 1 auto;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--mute);
}
.page-products .next-card__go {
  margin-top: .5rem;
  font-size: .8125rem;
  font-weight: 700;
  color: var(--red);
}

/* ---------- 响应式收尾 ---------- */
@media (max-width: 719px) {
  .page-products .prod-hero h1 {
    max-width: none;
  }
  .page-products .sec-head__title {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}
</main>