/* ==========================================================
   下载中心 · 页面专属样式（作用域：.page-products）
   ========================================================== */

.page-products {
  --dl-notch: 18px;
  --dl-pad: clamp(1.05rem, 3vw, 1.9rem);
  --dl-gap-s: clamp(0.7rem, 2vw, 1.1rem);
  --dl-gap-m: clamp(1.4rem, 4vw, 2.5rem);
  --dl-gap-l: clamp(2.4rem, 7vw, 5rem);
  background: var(--sea-900);
  color: var(--pearl);
  overflow-x: clip;
}

/* ---------------- 首屏 ---------------- */

.page-products .dl-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(1.8rem, 5vw, 3.2rem) clamp(2.4rem, 7vw, 5rem);
}

.page-products .dl-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -16%;
  width: min(860px, 98vw);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle at 62% 38%, rgba(255, 107, 74, 0.3), rgba(255, 107, 74, 0) 66%);
  pointer-events: none;
  z-index: 0;
}

.page-products .dl-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--edge), transparent);
  z-index: 1;
}

.page-products .dl-hero__inner {
  position: relative;
  z-index: 2;
}

.page-products .dl-hero__grid {
  display: grid;
  gap: var(--dl-gap-m);
  margin-top: clamp(1.3rem, 4vw, 2.4rem);
}

.page-products .dl-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--dl-gap-s);
  margin-top: clamp(1.3rem, 3vw, 2rem);
}

.page-products .dl-portal {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--sea-800);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--notch)), calc(100% - var(--notch)) 100%, 0 100%);
  overflow: hidden;
}

.page-products .dl-portal img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 640 / 880;
  object-fit: cover;
  filter: saturate(0.94) contrast(1.05);
}

.page-products .dl-portal__note {
  position: absolute;
  inset: auto 0 0 0;
  margin: 0;
  padding: 1.5rem var(--dl-pad) 0.95rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.3rem 0.6rem;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--pearl-dim);
  background: linear-gradient(180deg, rgba(4, 18, 31, 0), rgba(4, 18, 31, 0.92) 62%);
}

.page-products .dl-portal__note .metric {
  color: var(--coral);
  letter-spacing: 0.06em;
}

/* ---------------- 资料类别 ---------------- */

.page-products .dl-band {
  margin: 0 0 clamp(1.8rem, 5vw, 3.2rem);
  border: 1px solid var(--line);
  background: var(--sea-800);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--notch)), calc(100% - var(--notch)) 100%, 0 100%);
}

.page-products .dl-band img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1120 / 560;
  object-fit: cover;
}

.page-products .dl-band--slim {
  margin-bottom: clamp(1.4rem, 4vw, 2.4rem);
}

.page-products .dl-band--slim img {
  aspect-ratio: 1040 / 520;
}

.page-products .dl-cats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--dl-gap-m);
}

.page-products .dl-cat {
  position: relative;
  padding: var(--dl-pad);
  background: linear-gradient(158deg, var(--sea-700), var(--sea-800) 74%);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--dl-notch)), calc(100% - var(--dl-notch)) 100%, 0 100%);
  transition: border-color 0.28s ease, background 0.28s ease, transform 0.28s ease;
}

.page-products .dl-cat::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--coral), rgba(255, 107, 74, 0));
  opacity: 0.72;
}

.page-products .dl-cat:hover,
.page-products .dl-cat:focus-within {
  border-color: var(--edge);
  background: linear-gradient(158deg, var(--sea-600), var(--sea-700) 76%);
  transform: translateY(-4px);
}

.page-products .dl-cat__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.4rem 0.85rem;
}

.page-products .dl-cat__num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--coral);
}

.page-products .dl-cat__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.22rem, 2.6vw, 1.58rem);
  letter-spacing: 0.03em;
  line-height: 1.3;
}

.page-products .dl-cat__desc {
  margin: 0.7rem 0 0;
  font-size: 0.96rem;
  line-height: 1.7;
  color: var(--pearl-dim);
  max-width: 46ch;
}

.page-products .dl-cat__items {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-products .dl-cat__items li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.94rem;
  line-height: 1.65;
  color: var(--pearl-dim);
}

.page-products .dl-cat__items li::before {
  content: "";
  position: absolute;
  left: 0.1rem;
  top: 0.66em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--coral);
  transform: rotate(45deg);
}

.page-products .dl-cat__meta {
  margin: 1.1rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--pearl-faint);
}

/* ---------------- 获取方式 ---------------- */

.page-products .dl-path-layout {
  display: grid;
  gap: var(--dl-gap-m);
}

.page-products .dl-path {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.2rem);
}

.page-products .dl-step {
  position: relative;
  padding-top: 2.2rem;
}

.page-products .dl-step::before {
  content: "";
  position: absolute;
  top: 0.55rem;
  left: 0;
  width: 9px;
  height: 9px;
  border: 2px solid var(--coral);
  background: var(--sea-900);
  transform: rotate(45deg);
}

.page-products .dl-step::after {
  content: "";
  position: absolute;
  top: 0.98rem;
  left: 20px;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--edge), rgba(255, 107, 74, 0.05));
}

.page-products .dl-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--coral);
}

.page-products .dl-step__title {
  margin: 0.4rem 0 0.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.03em;
}

.page-products .dl-step p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.7;
  color: var(--pearl-dim);
}

.page-products .dl-sidefigure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--sea-800);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--notch)), calc(100% - var(--notch)) 100%, 0 100%);
}

.page-products .dl-sidefigure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-products .dl-formats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
  padding-top: clamp(1.2rem, 3vw, 1.8rem);
  border-top: 1px solid var(--line);
}

.page-products .dl-format {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  padding: 0.42rem 0.85rem;
  border: 1px solid var(--line);
  color: var(--pearl-dim);
  background: rgba(246, 242, 234, 0.03);
}

/* ---------------- 人工协助 ---------------- */

.page-products .dl-support {
  position: relative;
  background: linear-gradient(180deg, var(--sea-800), var(--sea-900));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-products .dl-support__grid {
  display: grid;
  gap: var(--dl-gap-m);
  align-items: center;
}

.page-products .dl-support__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--sea-700);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--notch)), calc(100% - var(--notch)) 100%, 0 100%);
}

.page-products .dl-support__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1000 / 760;
  object-fit: cover;
  filter: saturate(0.95);
}

.page-products .dl-support__body {
  display: grid;
  gap: 0.9rem;
}

.page-products .dl-support__body .btn {
  justify-self: start;
  margin-top: 0.3rem;
}

.page-products .dl-contact {
  margin-top: 0.6rem;
  padding-left: 1.05rem;
  border-left: 3px solid var(--coral);
  display: grid;
  gap: 0.45rem;
}

.page-products .dl-contact p {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 0.8rem;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--pearl-dim);
  overflow-wrap: anywhere;
}

.page-products .dl-contact p span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--coral);
}

.page-products .dl-support__note {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--pearl-faint);
  max-width: 56ch;
}

/* ---------------- 继续了解 ---------------- */

.page-products .dl-more__grid {
  display: grid;
  gap: var(--dl-gap-s);
}

.page-products .dl-link {
  display: grid;
  gap: 0.4rem;
  padding: 1.05rem 1.05rem 1.25rem;
  border: 1px solid var(--line);
  background: rgba(246, 242, 234, 0.02);
  color: inherit;
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.page-products .dl-link:hover,
.page-products .dl-link:focus-visible {
  border-color: var(--edge);
  background: rgba(255, 107, 74, 0.08);
  transform: translateY(-3px);
}

.page-products .dl-link__title {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--pearl);
}

.page-products .dl-link__desc {
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--pearl-dim);
}

/* ---------------- 响应式 ---------------- */

@media (min-width: 700px) {
  .page-products .dl-more__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-products .dl-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(1.3rem, 3.2vw, 2.4rem);
  }

  .page-products .dl-cats > li:nth-child(2),
  .page-products .dl-cats > li:nth-child(4) {
    margin-top: clamp(1.2rem, 3vw, 2.8rem);
  }

  .page-products .dl-cat--wide {
    grid-column: 1 / -1;
    margin-top: clamp(0.6rem, 2vw, 1.4rem) !important;
  }

  .page-products .dl-cat__items--inline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem 2rem;
  }
}

@media (min-width: 900px) {
  .page-products .dl-hero__grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.78fr);
    align-items: end;
    gap: clamp(2rem, 5vw, 4.5rem);
  }

  .page-products .dl-portal {
    width: min(100%, 440px);
    margin-left: auto;
  }

  .page-products .dl-path-layout {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    gap: clamp(1.8rem, 4vw, 3.2rem);
    align-items: start;
  }

  .page-products .dl-path {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(1.6rem, 3.4vw, 2.4rem);
  }

  .page-products .dl-support__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

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

@media (min-width: 1100px) {
  .page-products .dl-cat--wide {
    padding-right: clamp(2rem, 6vw, 5rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .dl-cat,
  .page-products .dl-link {
    transition: none;
  }

  .page-products .dl-cat:hover,
  .page-products .dl-cat:focus-within,
  .page-products .dl-link:hover,
  .page-products .dl-link:focus-visible {
    transform: none;
  }
}