.page-products {
  --prod-gap: clamp(16px, 2.6vw, 28px);
  --prod-pad: clamp(18px, 3vw, 30px);
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--mist);
  padding: clamp(18px, 3vw, 34px) 0 clamp(56px, 8vw, 104px);
}

.page-products::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(159, 176, 184, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(159, 176, 184, 0.055) 1px, transparent 1px);
  background-size: 46px 46px;
  opacity: 0.75;
}

.page-products > *:not(.prod-return) {
  position: relative;
  z-index: 1;
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumbs {
  margin-bottom: clamp(14px, 2.4vw, 26px);
}

.page-products .breadcrumbs__link {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--silver);
  text-decoration: none;
}

.page-products .breadcrumbs__link:hover,
.page-products .breadcrumbs__link:focus-visible {
  color: var(--signal);
}

.page-products .breadcrumbs__link[aria-current="page"] {
  color: var(--signal);
}

.page-products .breadcrumbs__sep {
  color: var(--muted);
  font-size: 0.72rem;
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  padding-bottom: clamp(22px, 4vw, 42px);
}

.page-products .prod-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3.4vw, 44px);
  align-items: start;
}

.page-products .prod-hero h1 {
  margin: 10px 0 0;
  font-size: clamp(1.95rem, 5.6vw, 3.9rem);
  line-height: 1.08;
  letter-spacing: -0.012em;
  max-width: 20ch;
}

.page-products .prod-hero__lead {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 60ch;
  font-size: clamp(0.96rem, 1.4vw, 1.06rem);
  line-height: 1.68;
  color: var(--silver);
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-products .prod-hero__aside {
  border: var(--edge) solid var(--line-strong);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  padding: 18px 18px 20px;
}

.page-products .prod-hero__aside-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--signal);
}

.page-products .prod-jump {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .prod-jump__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 2px;
  border-bottom: 1px dashed var(--line);
  color: var(--mist);
  font-size: 0.92rem;
  text-decoration: none;
  transition: color 160ms var(--ease), transform 160ms var(--ease);
}

.page-products .prod-jump li:last-child .prod-jump__link {
  border-bottom: 0;
}

.page-products .prod-jump__link::after {
  content: "→";
  font-family: var(--font-mono);
  color: var(--muted);
}

.page-products .prod-jump__link:hover,
.page-products .prod-jump__link:focus-visible {
  color: var(--signal);
  transform: translateX(4px);
}

.page-products .prod-jump__link:hover::after {
  color: var(--signal);
}

/* ---------- 章节骨架 ---------- */
.page-products .prod-sec {
  padding: clamp(26px, 4.6vw, 52px) 0;
}

.page-products .prod-sec--cta {
  padding-bottom: 0;
}

.page-products .prod-sec__head {
  max-width: 62ch;
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-products .prod-sec__head h2 {
  margin: 8px 0 12px;
  line-height: 1.14;
}

.page-products .prod-sec__head > p,
.page-products .prod-sec__head > div > p {
  margin: 0;
  color: var(--silver);
  line-height: 1.68;
}

.page-products .prod-block {
  padding: var(--prod-pad);
}

.page-products .prod-block__body {
  margin-top: clamp(16px, 2.6vw, 26px);
}

/* ---------- 检索模块 ---------- */
.page-products .prod-media {
  margin: 0;
}

.page-products .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .prod-params {
  list-style: none;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .prod-params li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 16px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}

.page-products .prod-params span {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--silver);
}

.page-products .prod-params b {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--mist);
}

/* ---------- 专栏模块 ---------- */
.page-products .prod-media--head {
  margin: 0;
}

.page-products .prod-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--prod-gap);
}

.page-products .prod-col-card {
  border-top: 3px solid var(--signal);
  border-left: var(--edge) solid var(--line);
  border-right: var(--edge) solid var(--line);
  border-bottom: var(--edge) solid var(--line);
  padding: 18px 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-products .prod-col-card:nth-child(2) {
  border-top-color: var(--cyan);
}

.page-products .prod-col-card:nth-child(3) {
  border-top-color: var(--violet);
}

.page-products .prod-col-card:nth-child(4) {
  border-top-color: var(--flare);
}

.page-products .prod-col-card .card__title {
  margin: 0;
  font-size: 1.06rem;
}

.page-products .prod-col-card p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--silver);
}

/* ---------- 分类与收藏 ---------- */
.page-products .prod-tier {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.6vw, 26px);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-products .prod-tier__item {
  border-left: 3px solid var(--signal);
  padding: 2px 0 2px 15px;
}

.page-products .prod-tier__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--signal);
}

.page-products .prod-tier__item h3 {
  margin: 8px 0 8px;
  font-size: 1.08rem;
  line-height: 1.3;
}

.page-products .prod-tier__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.64;
  color: var(--silver);
}

.page-products .prod-note {
  margin-top: clamp(22px, 3.2vw, 34px);
  border: var(--edge) dashed var(--line-strong);
  background: rgba(53, 214, 255, 0.05);
  padding: clamp(16px, 2.4vw, 24px);
}

.page-products .prod-note h3 {
  margin: 0 0 10px;
  font-size: 1.04rem;
  color: var(--cyan);
}

.page-products .prod-note p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.66;
  color: var(--silver);
  max-width: 68ch;
}

/* ---------- iOS 模块 ---------- */
.page-products .prod-ios {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.6vw, 44px);
  align-items: center;
}

.page-products .prod-ios__media {
  margin: 0;
  max-width: 320px;
}

.page-products .prod-ios__body h2 {
  margin: 8px 0 14px;
  line-height: 1.15;
  max-width: 22ch;
}

.page-products .prod-ios__body > p {
  margin: 0;
  color: var(--silver);
  line-height: 1.68;
  max-width: 60ch;
}

/* ---------- 通用列表 ---------- */
.page-products .prod-list {
  list-style: none;
  margin: clamp(14px, 2vw, 20px) 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-products .prod-list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.91rem;
  line-height: 1.64;
  color: var(--silver);
}

.page-products .prod-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  background: var(--signal);
  box-shadow: 0 0 0 3px rgba(0, 229, 168, 0.14);
}

/* ---------- 桌面端 ---------- */
.page-products .prod-desktop__media {
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-products .prod-desktop__facts {
  gap: var(--prod-gap);
}

.page-products .prod-fact {
  border-left: var(--edge) solid var(--signal);
  padding: 16px 16px 18px;
}

.page-products .prod-fact .card__title {
  margin: 0 0 10px;
  font-size: 1rem;
}

.page-products .prod-fact p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.64;
  color: var(--silver);
}

/* ---------- 场景速查 ---------- */
.page-products .prod-scenario {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--prod-gap);
}

.page-products .prod-scenario__card {
  position: relative;
  border: var(--edge) solid var(--line-strong);
  background: var(--panel);
  padding: 20px 18px 22px;
  box-shadow: var(--shadow-hard);
}

.page-products .prod-scenario__card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--flare), rgba(255, 90, 46, 0));
}

.page-products .prod-scenario__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.09em;
  color: var(--flare);
  border: 1px solid rgba(255, 90, 46, 0.45);
  padding: 3px 8px;
}

.page-products .prod-scenario__card h3 {
  margin: 14px 0 0;
  font-size: 1.14rem;
  line-height: 1.3;
}

.page-products .prod-scenario__card .prod-list li::before {
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(53, 214, 255, 0.14);
}

/* ---------- 尾部行动区 ---------- */
.page-products .prod-cta__inner {
  border: var(--edge) solid var(--signal);
  background:
    linear-gradient(135deg, rgba(0, 229, 168, 0.1), rgba(11, 22, 19, 0) 62%),
    var(--panel);
  box-shadow: var(--shadow-signal);
  padding: clamp(22px, 3.6vw, 38px);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px 26px;
}

.page-products .prod-cta__inner p {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(0.98rem, 1.4vw, 1.08rem);
  line-height: 1.6;
}

.page-products .prod-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 悬浮返回 ---------- */
.page-products .prod-return {
  position: fixed;
  right: clamp(10px, 2vw, 24px);
  bottom: clamp(10px, 2vw, 24px);
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 13px;
  background: var(--signal);
  color: #06231B;
  border: var(--edge) solid var(--ink);
  box-shadow: var(--shadow-hard);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: transform 160ms var(--ease);
}

.page-products .prod-return:hover,
.page-products .prod-return:focus-visible {
  transform: translate(-2px, -2px);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-products .prod-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .prod-tier {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .prod-scenario {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-products .prod-block__body--split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
    gap: clamp(22px, 3.2vw, 40px);
    align-items: start;
  }

  .page-products .prod-sec__head--split {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: clamp(24px, 3.6vw, 48px);
    align-items: center;
    max-width: none;
  }

  .page-products .prod-ios {
    grid-template-columns: minmax(200px, 280px) minmax(0, 1fr);
  }
}

@media (min-width: 980px) {
  .page-products .prod-hero__grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(250px, 0.82fr);
    gap: clamp(28px, 4vw, 56px);
  }

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

  .page-products .prod-desktop__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .page-products .prod-params li {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .page-products .prod-ios__media {
    max-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-jump__link,
  .page-products .prod-return,
  .page-products .prod-col-card,
  .page-products .prod-scenario__card {
    transition: none;
  }

  .page-products .prod-jump__link:hover,
  .page-products .prod-jump__link:focus-visible,
  .page-products .prod-return:hover,
  .page-products .prod-return:focus-visible {
    transform: none;
  }
}