/* ============================================================
   功能中心 /features/
   作用域：.page-products
   ============================================================ */

.page-products {
  --pd-radius: 22px;
  --pd-panel: #F7F5F1;
  --pd-line: rgba(10, 10, 13, .10);
  background: var(--white);
  color: var(--ink);
  overflow-x: hidden;
}

.page-products .section {
  padding-block: clamp(48px, 7vw, 92px);
}

.page-products .section--tight {
  padding-block: clamp(30px, 4vw, 52px) clamp(20px, 3vw, 36px);
}

/* ---------- 面包屑留白 ---------- */
.page-products .breadcrumbs {
  padding-top: clamp(16px, 2.4vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-products .vs-hero {
  background:
    radial-gradient(120% 140% at 8% -20%, rgba(30, 63, 214, .10), transparent 58%),
    radial-gradient(90% 120% at 100% 0%, rgba(224, 27, 60, .08), transparent 62%),
    var(--white);
  border-bottom: 1px solid var(--pd-line);
}

.page-products .vs-hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 6.2vw, 58px);
  line-height: 1.16;
  letter-spacing: .01em;
  margin: 14px 0 0;
  max-width: 18em;
}

.page-products .vs-hero__lede {
  margin-top: 18px;
  max-width: 46em;
}

.page-products .vs-hero__keys {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-products .vs-key {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  border-radius: var(--r-pill);
  background: var(--paper);
  border: 1px solid var(--line-ink);
  font-size: 15px;
  line-height: 1.5;
}

.page-products .vs-key__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ruby);
  flex: none;
}

/* ---------- 下载专区 Bento ---------- */
.page-products .dl-bento {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-products .dl-bento .bento__cell {
  min-width: 0;
}

.page-products .bento__cell--focus.dl-focus {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.4vw, 28px);
  padding: clamp(20px, 2.8vw, 34px);
  border-radius: var(--r-xl);
  background:
    linear-gradient(140deg, #12121a 0%, #0A0A0D 52%, #141019 100%);
  color: var(--white);
  border: 1px solid rgba(224, 27, 60, .55);
  box-shadow: 0 18px 46px rgba(10, 10, 13, .22);
  align-items: center;
}

.page-products .dl-focus__text {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.page-products .dl-focus__text .mono-index {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-products .dl-focus__text h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1.2;
  margin: 0;
}

.page-products .dl-focus__text p {
  margin: 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: rgba(255, 255, 255, .78);
}

.page-products .dl-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(18px, 3.4vw, 40px);
  margin-top: 6px;
  padding-top: 18px;
  border-top: 1px solid rgba(201, 162, 39, .34);
}

.page-products .dl-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-products .dl-stat__value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1;
  color: var(--ruby);
}

.page-products .dl-stat__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(255, 255, 255, .58);
}

.page-products .dl-focus__media {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(150deg, rgba(30, 63, 214, .5), rgba(224, 27, 60, .34));
  aspect-ratio: 1 / 1;
}

.page-products .dl-focus__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

/* ---------- 通道卡片 ---------- */
.page-products .channel-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 2.6vw, 28px);
  border-radius: var(--r-lg);
  background: var(--paper);
  border: 1px solid var(--line-ink);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.page-products .channel-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: var(--ruby);
}

.page-products .channel-card__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(20px, 2.4vw, 25px);
  line-height: 1.3;
  margin: 0;
}

.page-products .channel-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: #3a3a44;
}

.page-products .channel-card__foot {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--grey);
}

/* ---------- 厂商列表 ---------- */
.page-products .vendor-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 38px);
  align-items: center;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-products .vendor-figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(140deg, rgba(30, 63, 214, .34), rgba(15, 138, 106, .28));
  aspect-ratio: 16 / 10;
}

.page-products .vendor-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.page-products .vendor-figure .media-frame__note {
  color: rgba(255, 255, 255, .82);
}

.page-products .vendor-brief__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(21px, 2.6vw, 28px);
  line-height: 1.32;
  margin: 0 0 14px;
}

.page-products .vendor-brief p {
  margin: 0 0 12px;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: #2c2c36;
}

.page-products .vendor-brief p:last-child {
  margin-bottom: 0;
}

.page-products .vendor-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(20px, 3vw, 32px);
  padding: clamp(14px, 2vw, 18px) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-products .vendor-filter .filter-pill {
  min-width: 0;
}

.page-products .vendor-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-products .vendor-card {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: clamp(16px, 2vw, 22px);
  border-radius: var(--r-lg);
  background: var(--pd-panel);
  border: 1px solid var(--line-ink);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease), background-color var(--ease);
}

.page-products .vendor-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: var(--ruby);
  background: var(--ruby-soft);
}

.page-products .vendor-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-products .vendor-card__top .mono-index {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--sapphire);
}

.page-products .vendor-card__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(19px, 2.2vw, 23px);
  line-height: 1.25;
  margin: 0;
}

.page-products .vendor-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: #45454f;
}

.page-products .vendor-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--line-ink);
}

.page-products .vendor-card__time {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--grey);
}

/* ---------- 规则与案例合集 ---------- */
.page-products .rules-section {
  background:
    linear-gradient(180deg, rgba(242, 240, 234, .8), rgba(255, 255, 255, 0) 70%);
}

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

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

.page-products .rule-way {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 2.6vw, 28px);
  border-radius: var(--r-lg);
  background: var(--white);
  border: 1px solid var(--line-ink);
  box-shadow: var(--shadow-rest);
  transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease);
}

.page-products .rule-way:hover {
  border-color: var(--gold);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.page-products .rule-way__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--ruby);
}

.page-products .rule-way__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(19px, 2.2vw, 23px);
  line-height: 1.3;
  margin: 0;
}

.page-products .rule-way__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: #3a3a44;
}

.page-products .rules-figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(160deg, rgba(201, 162, 39, .22), rgba(30, 63, 214, .16));
  min-height: 180px;
}

.page-products .rules-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.page-products .rules-note {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--ruby);
  font-size: 15px;
  line-height: 1.8;
  color: #3a3a44;
  max-width: 52em;
}

/* ---------- 多端适配 ---------- */
.page-products .device-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  align-items: start;
}

.page-products .device-figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(150deg, rgba(15, 138, 106, .26), rgba(10, 10, 13, .12));
  aspect-ratio: 4 / 3;
}

.page-products .device-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

.page-products .device-notes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-products .device-note {
  padding: clamp(16px, 2vw, 22px);
  border-radius: var(--r-lg);
  background: var(--paper);
  border-left: 3px solid var(--sapphire);
}

.page-products .device-note:nth-child(2) {
  border-left-color: var(--emerald);
}

.page-products .device-note:nth-child(3) {
  border-left-color: var(--ruby);
}

.page-products .device-note__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(18px, 2.1vw, 22px);
  line-height: 1.3;
  margin: 10px 0 8px;
}

.page-products .device-note p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: #3a3a44;
}

/* ---------- 上手四步 ---------- */
.page-products .steps-section {
  background: var(--white);
}

.page-products .steps-rail {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  position: relative;
}

.page-products .step {
  position: relative;
  padding: clamp(18px, 2.2vw, 24px);
  border-radius: var(--r-lg);
  background: var(--white);
  border: 1px solid var(--line-ink);
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.page-products .step:hover,
.page-products .step:focus-within {
  transform: translateY(-2px);
  border-color: var(--ruby);
  box-shadow: var(--shadow-hover);
}

.page-products .step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--r-pill);
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  transition: background-color var(--ease), color var(--ease);
}

.page-products .step:hover .step__num,
.page-products .step:focus-within .step__num {
  background: var(--ruby);
}

.page-products .step__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(18px, 2.2vw, 22px);
  line-height: 1.32;
  margin: 14px 0 8px;
}

.page-products .step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: #3a3a44;
}

.page-products .steps-figure {
  margin: clamp(24px, 4vw, 40px) 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(90deg, rgba(10, 10, 13, .06), rgba(201, 162, 39, .2), rgba(10, 10, 13, .06));
  aspect-ratio: 3 / 1;
}

.page-products .steps-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
}

/* ---------- 收尾行动区 ---------- */
.page-products .cta-section {
  background: var(--ink);
  color: var(--white);
}

.page-products .cta-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 36px);
  align-items: center;
}

.page-products .cta-block__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.8vw, 36px);
  line-height: 1.24;
  margin: 10px 0 12px;
}

.page-products .cta-block__text p {
  margin: 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: rgba(255, 255, 255, .74);
}

.page-products .cta-block__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .cta-block__actions .btn--outline {
  border-color: rgba(255, 255, 255, .38);
  color: var(--white);
}

.page-products .cta-block__actions .btn--outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.page-products .cta-links {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
}

.page-products .cta-links a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 39, .5);
  padding-bottom: 1px;
}

.page-products .cta-links a:hover {
  border-bottom-color: var(--gold);
}

/* ---------- 焦点可见性 ---------- */
.page-products a:focus-visible,
.page-products button:focus-visible {
  outline: 2px solid var(--ruby);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ============================================================
   平板与桌面
   ============================================================ */
@media (min-width: 620px) {
  .page-products .vs-hero__keys {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--gap);
  }

  .page-products .vs-key {
    border-radius: var(--r-lg);
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 16px 20px;
  }

  .page-products .dl-bento {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    grid-auto-rows: minmax(0, auto);
  }

  .page-products .bento__cell--focus.dl-focus {
    grid-column: 1 / -1;
  }

  .page-products .dl-bento .channel-card {
    grid-column: span 6;
  }

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

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

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

@media (min-width: 900px) {
  .page-products .dl-bento .bento__cell--focus.dl-focus {
    grid-column: span 8;
    grid-row: span 2;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-products .dl-bento .channel-card {
    grid-column: span 4;
    grid-row: span 1;
  }

  .page-products .vendor-layout {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    gap: clamp(28px, 4vw, 52px);
  }

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

  .page-products .rules-layout {
    grid-template-columns: repeat(3, minmax(0, 1fr)) minmax(180px, 240px);
    align-items: stretch;
  }

  .page-products .rules-figure {
    min-height: 100%;
  }

  .page-products .device-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: stretch;
  }

  .page-products .device-notes {
    grid-template-columns: 1fr;
  }

  .page-products .steps-rail {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(16px, 2vw, 26px);
  }

  .page-products .steps-rail::before {
    content: "";
    position: absolute;
    left: 8px;
    right: 8px;
    top: 44px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(201, 162, 39, .7), transparent);
    pointer-events: none;
  }

  .page-products .cta-block {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  }

  .page-products .cta-block__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1180px) {
  .page-products .vendor-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 降低动态偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .channel-card,
  .page-products .vendor-card,
  .page-products .rule-way,
  .page-products .step,
  .page-products .step__num {
    transition: none;
  }

  .page-products .channel-card:hover,
  .page-products .vendor-card:hover,
  .page-products .rule-way:hover,
  .page-products .step:hover {
    transform: none;
  }
}
</main>