/* =========================================================
   FB体育 · 注册与订阅（/features/）
   页面作用域：.page-products
   ========================================================= */

.page-products {
  --ps-text: #C7D7EA;
  --ps-line: #22304A;
  --ps-line-soft: rgba(42, 58, 85, 0.6);
}

.page-products img {
  max-width: 100%;
  height: auto;
}

.page-products .section {
  padding-top: clamp(44px, 7vw, 88px);
  padding-bottom: clamp(44px, 7vw, 88px);
}

.page-products .section__lead {
  color: var(--ps-text);
  max-width: 62ch;
}

/* ---------- 首屏 ---------- */

.page-products .ps-hero {
  padding-top: clamp(16px, 2.5vw, 28px);
  padding-bottom: clamp(36px, 5vw, 64px);
}

.page-products .ps-hero__grid {
  display: grid;
  gap: clamp(28px, 4.5vw, 56px);
  align-items: start;
}

.page-products .ps-hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.6vw, 3.7rem);
  line-height: 1.06;
  letter-spacing: -0.01em;
  margin: 16px 0 0;
  color: var(--c-ice);
}

.page-products .ps-hero__lead {
  margin: 20px 0 0;
  max-width: 54ch;
  color: var(--ps-text);
  font-size: 1.0625rem;
  line-height: 1.74;
}

.page-products .ps-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .ps-hero__figure {
  margin: 0;
}

.page-products .ps-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 30px;
  margin: 34px 0 0;
  padding: 22px 0 0;
  list-style: none;
  border-top: 1px solid var(--ps-line);
}

.page-products .ps-stats .stat {
  min-width: 128px;
  padding-bottom: 6px;
}

.page-products .ps-stats .stat__value {
  display: block;
  font-size: clamp(1.15rem, 1.8vw, 1.5rem);
  line-height: 1.15;
  color: var(--c-signal);
}

.page-products .ps-stats .stat__label {
  display: block;
  margin-top: 6px;
  font-size: 0.8125rem;
  color: var(--c-haze);
}

/* ---------- 注册三步 ---------- */

.page-products .ps-steps {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
  margin-top: clamp(28px, 4vw, 46px);
}

.page-products .ps-steps__list {
  display: grid;
  gap: 14px;
}

.page-products .ps-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: clamp(16px, 2.4vw, 26px);
  row-gap: 8px;
  align-items: start;
  position: relative;
  overflow: hidden;
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-products .ps-step__num {
  grid-row: 1 / span 3;
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  line-height: 1;
  color: var(--c-signal);
  opacity: 0.9;
}

.page-products .ps-step__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1.7vw, 1.35rem);
  color: var(--c-ice);
  letter-spacing: 0.01em;
}

.page-products .ps-step__body {
  margin: 0;
  color: var(--ps-text);
  font-size: 0.95rem;
  line-height: 1.72;
}

.page-products .ps-step__meta {
  margin: 4px 0 0;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-signal-2);
}

.page-products .ps-steps__figure {
  margin: 0;
}

/* ---------- 订阅组合 ---------- */

.page-products .ps-sub__grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(26px, 4vw, 42px);
}

.page-products .ps-sub__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-products .ps-sub__foot {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
  margin-top: clamp(28px, 4vw, 44px);
  align-items: start;
}

.page-products .ps-sub__figure {
  margin: 0;
}

.page-products .ps-beats {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--ps-line);
}

.page-products .ps-beat {
  padding: 18px 0;
  border-bottom: 1px solid var(--ps-line-soft);
}

.page-products .ps-beat__when {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--c-medal);
}

.page-products .ps-beat__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 1.08rem;
  color: var(--c-ice);
}

.page-products .ps-beat__body {
  margin: 8px 0 0;
  color: var(--ps-text);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ---------- 下载专区 ---------- */

.page-products .ps-dl__tags {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products .ps-dl__figure {
  margin: clamp(22px, 3.4vw, 34px) 0 0;
}

.page-products .ps-dl__grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-products .ps-dl__group {
  scroll-margin-top: 90px;
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-products .ps-dl__group:target {
  border-color: var(--c-signal);
  box-shadow: var(--shadow-hard);
}

.page-products .ps-dl__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-products .ps-dl__code {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-haze);
}

.page-products .ps-dl__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 1.8vw, 1.4rem);
  color: var(--c-ice);
}

.page-products .ps-dl__projects {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .ps-dl__files {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px dashed var(--ps-line-soft);
}

.page-products .ps-dl__file {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  align-items: baseline;
  justify-content: space-between;
  padding: 11px 0;
  border-bottom: 1px solid var(--ps-line-soft);
}

.page-products .ps-dl__file-name {
  color: var(--c-ice);
  font-size: 0.92rem;
}

.page-products .ps-dl__file-meta {
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--c-signal);
}

/* ---------- 常用功能 ---------- */

.page-products .ps-features {
  display: grid;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--c-steel);
}

.page-products .ps-feature {
  padding: clamp(20px, 3vw, 30px) 0;
  border-bottom: 1px solid var(--ps-line);
}

.page-products .ps-feature__num {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--c-signal-2);
}

.page-products .ps-feature__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.08rem, 1.7vw, 1.3rem);
  color: var(--c-ice);
}

.page-products .ps-feature__body {
  margin: 10px 0 0;
  max-width: 44ch;
  color: var(--ps-text);
  font-size: 0.94rem;
  line-height: 1.72;
}

/* ---------- 适用场景 ---------- */

.page-products .ps-scenes {
  display: grid;
  gap: 14px;
  margin-top: clamp(26px, 4vw, 42px);
}

.page-products .ps-scene {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 3vw, 28px);
  background: var(--c-console);
  border: 1px solid var(--ps-line);
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-products .ps-scene:hover,
.page-products .ps-scene:focus-within {
  border-color: var(--c-signal);
  transform: translateY(-3px);
}

.page-products .ps-scene__tag {
  font-size: 0.76rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-flag);
}

.page-products .ps-scene__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.12rem, 1.8vw, 1.36rem);
  color: var(--c-ice);
}

.page-products .ps-scene__body {
  margin: 0;
  flex: 1;
  color: var(--ps-text);
  font-size: 0.94rem;
  line-height: 1.74;
}

.page-products .ps-scene__link {
  align-self: flex-start;
  margin-top: 4px;
  font-size: 0.86rem;
  color: var(--c-signal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.16s var(--ease), color 0.16s var(--ease);
}

.page-products .ps-scene__link:hover,
.page-products .ps-scene__link:focus-visible {
  border-bottom-color: var(--c-signal);
  color: var(--c-signal-2);
}

.page-products .ps-scenes__figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

/* ---------- 订阅协助 ---------- */

.page-products .ps-help {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-products .ps-help__body {
  margin: 16px 0 0;
  max-width: 54ch;
  color: var(--ps-text);
  font-size: 0.96rem;
  line-height: 1.74;
}

.page-products .ps-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-products .ps-channels {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ps-line);
}

.page-products .ps-channel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--ps-line-soft);
}

.page-products .ps-channel__label {
  flex: 0 0 auto;
  min-width: 84px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--c-haze);
}

.page-products .ps-channel__value {
  flex: 1 1 200px;
  color: var(--c-ice);
  font-size: 0.94rem;
  word-break: break-word;
}

.page-products .ps-channel .copy-btn {
  flex: 0 0 auto;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-products .ps-scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-products .ps-features {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .ps-feature:nth-child(odd) {
    padding-right: clamp(22px, 3vw, 40px);
    border-right: 1px solid var(--ps-line);
  }

  .page-products .ps-feature:nth-child(even) {
    padding-left: clamp(22px, 3vw, 40px);
  }

  .page-products .ps-dl__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 960px) {
  .page-products .ps-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  }

  .page-products .ps-steps {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.72fr);
    align-items: start;
  }

  .page-products .ps-sub__foot {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

  .page-products .ps-help {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

@media (min-width: 1080px) {
  .page-products .ps-dl__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (max-width: 639px) {
  .page-products .ps-step__num {
    grid-row: auto;
  }

  .page-products .ps-step {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .ps-stats {
    gap: 14px 22px;
  }

  .page-products .ps-stats .stat {
    min-width: 104px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .ps-step,
  .page-products .ps-scene,
  .page-products .ps-dl__group,
  .page-products .ps-scene__link {
    transition: none;
  }

  .page-products .ps-scene:hover,
  .page-products .ps-scene:focus-within {
    transform: none;
  }
}