/* ================= 版本下载中心 / page-products ================= */

.page-products {
  background: var(--deep-space);
  color: var(--frost);
  overflow-x: hidden;
}

.page-products .pd-section {
  padding-bottom: clamp(48px, 7vw, 88px);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-products .section-head__title {
  font-size: clamp(21px, 2.8vw, 30px);
  line-height: 1.32;
}

.page-products .prose {
  color: var(--mist);
}

.page-products .link {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */

.page-products .pd-hero {
  position: relative;
  padding: clamp(24px, 4vw, 48px) 0 clamp(32px, 5vw, 64px);
  border-bottom: 1px solid var(--line-steel);
  background:
    radial-gradient(120% 90% at 12% -10%, rgba(47, 230, 214, 0.12), transparent 62%),
    radial-gradient(90% 70% at 100% 0%, rgba(255, 106, 43, 0.09), transparent 58%),
    linear-gradient(180deg, #050A18 0%, #07102A 100%);
}

.page-products .pd-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(35, 50, 90, 0.55) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(35, 50, 90, 0.35) 0 1px, transparent 1px 96px);
  pointer-events: none;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 85%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 85%);
}

.page-products .pd-hero .shell {
  position: relative;
  z-index: 1;
}

.page-products .pd-hero__inner {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  grid-template-columns: 1fr;
  align-items: start;
  padding-top: clamp(20px, 3vw, 36px);
}

.page-products .pd-hero__copy h1 {
  margin: 12px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 5.4vw, 54px);
  line-height: 1.12;
  letter-spacing: 0.01em;
  color: var(--frost);
}

.page-products .pd-hero__lead {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(15px, 1.55vw, 17.5px);
  line-height: 1.82;
  color: var(--mist);
}

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

/* 数据板 */

.page-products .pd-board {
  position: relative;
  border: 1px solid var(--line-steel);
  background: linear-gradient(160deg, rgba(12, 23, 48, 0.96), rgba(5, 10, 24, 0.96));
  padding: 22px 20px 20px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.page-products .pd-board::before,
.page-products .pd-board::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid var(--cyan);
}

.page-products .pd-board::before {
  top: -2px;
  left: -2px;
  border-right: 0;
  border-bottom: 0;
}

.page-products .pd-board::after {
  bottom: -2px;
  right: -2px;
  border-left: 0;
  border-top: 0;
}

.page-products .pd-board__badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px dashed rgba(47, 230, 214, 0.45);
  padding: 5px 10px;
}

.page-products .pd-board__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 18px;
  background: var(--line-steel);
  border: 1px solid var(--line-steel);
}

.page-products .pd-board__cell {
  background: var(--navy-deck);
  padding: 16px 14px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 2px 4px;
}

.page-products .pd-board__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-products .pd-board__unit {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--mist);
}

.page-products .pd-board__txt {
  flex: 1 0 100%;
  margin-top: 6px;
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--mist);
}

/* 两个主入口 */

.page-products .pd-entries {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(22px, 3.5vw, 36px);
}

.page-products .pd-entry {
  position: relative;
  display: block;
  padding: 20px 20px 18px;
  border: 1px solid var(--line-steel);
  background: rgba(12, 23, 48, 0.72);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-products .pd-entry:hover,
.page-products .pd-entry:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(47, 230, 214, 0.7);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.42);
}

.page-products .pd-entry__tag {
  margin-bottom: 12px;
}

.page-products .pd-entry__title {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2vw, 22px);
  letter-spacing: 0.02em;
  color: var(--frost);
}

.page-products .pd-entry__desc {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-products .pd-entry__go {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur) var(--ease);
}

.page-products .pd-entry:hover .pd-entry__go {
  border-bottom-color: var(--cyan);
}

/* ---------- 分栏骨架 ---------- */

.page-products .pd-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
  padding-top: clamp(36px, 5vw, 60px);
}

.page-products .pd-rail {
  display: none;
}

.page-products .pd-content {
  min-width: 0;
}

.page-products .pd-content > .pd-section:first-child {
  padding-top: 0;
}

/* ---------- 通用图文 ---------- */

.page-products .pd-photo {
  position: relative;
  margin: 0;
  padding: 10px;
  border: 1px solid var(--line-steel);
  background: linear-gradient(180deg, rgba(12, 23, 48, 0.9), rgba(5, 10, 24, 0.9));
}

.page-products .pd-photo::before,
.page-products .pd-photo::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid var(--cyan);
  pointer-events: none;
}

.page-products .pd-photo::before {
  top: -2px;
  left: -2px;
  border-right: 0;
  border-bottom: 0;
}

.page-products .pd-photo::after {
  bottom: -2px;
  right: -2px;
  border-left: 0;
  border-top: 0;
}

.page-products .pd-photo img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .pd-photo figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 01 版本对照 ---------- */

.page-products .pd-switch {
  margin-top: 24px;
  border: 1px solid var(--cream);
  background: var(--cream);
  color: var(--cream-ink);
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.4);
}

.page-products .pd-switch__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}

.page-products .pd-switch__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-bottom: 1px solid rgba(16, 19, 31, 0.18);
}

.page-products .pd-switch__tab {
  flex: 1 1 auto;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-align: center;
  cursor: pointer;
  color: rgba(16, 19, 31, 0.62);
  border-right: 1px solid rgba(16, 19, 31, 0.12);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .pd-switch__tab:last-child {
  border-right: 0;
}

.page-products #pdver-v3:checked ~ .pd-switch__bar .pd-switch__tab[for="pdver-v3"],
.page-products #pdver-v4:checked ~ .pd-switch__bar .pd-switch__tab[for="pdver-v4"] {
  background: #10131F;
  color: var(--cream);
}

.page-products .pd-table-wrap {
  overflow-x: auto;
}

.page-products .pd-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .pd-table__caption {
  padding: 16px 18px 8px;
  text-align: left;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--cream-ink);
}

.page-products .pd-table th,
.page-products .pd-table td {
  padding: 13px 16px;
  text-align: left;
  vertical-align: top;
  line-height: 1.65;
  border-bottom: 1px solid rgba(16, 19, 31, 0.12);
}

.page-products .pd-table thead th {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(16, 19, 31, 0.7);
  border-bottom: 1px solid rgba(16, 19, 31, 0.32);
}

.page-products .pd-table tbody th {
  font-weight: 700;
  color: var(--cream-ink);
  white-space: nowrap;
}

.page-products .pd-table td {
  color: rgba(16, 19, 31, 0.82);
}

.page-products .pd-table tbody tr:last-child th,
.page-products .pd-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products #pdver-v3:checked ~ .pd-table-wrap .pd-col-v3,
.page-products #pdver-v4:checked ~ .pd-table-wrap .pd-col-v4 {
  background: rgba(14, 111, 107, 0.15);
  box-shadow: inset 0 0 0 1px rgba(14, 111, 107, 0.45);
}

.page-products .pd-note {
  margin: 0;
  padding: 14px 18px 18px;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(16, 19, 31, 0.68);
  border-top: 1px dashed rgba(16, 19, 31, 0.2);
}

/* ---------- 02 射门统计 ---------- */

.page-products .pd-feature {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
  margin-top: 20px;
  align-items: start;
}

.page-products .pd-feature__copy p + p {
  margin-top: 14px;
}

.page-products .pd-statline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(24px, 3.5vw, 36px);
  background: var(--line-steel);
  border: 1px solid var(--line-steel);
}

.page-products .pd-statline .stat {
  background: var(--navy-deck);
  padding: 18px 16px;
}

.page-products .pd-statline .stat--signal {
  background: linear-gradient(160deg, rgba(255, 106, 43, 0.16), var(--navy-deck) 70%);
}

.page-products .pd-statline .stat__value {
  font-size: clamp(26px, 3.6vw, 38px);
}

.page-products .pd-statline .stat__label {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--mist);
}

/* ---------- 03 场馆入口 ---------- */

.page-products .pd-venue {
  margin-top: 22px;
  align-items: start;
}

.page-products .pd-venue__badge {
  display: inline-block;
  margin-bottom: 14px;
}

.page-products .pd-venue p + p {
  margin-top: 14px;
}

.page-products .pd-venue .pd-photo {
  margin-top: 22px;
}

/* ---------- 04 会员权益 ---------- */

.page-products .pd-member__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .pd-member__list li {
  position: relative;
  padding: 14px 16px 14px 34px;
  border-left: 2px solid var(--cyan);
  background: rgba(12, 23, 48, 0.72);
  font-size: 15px;
  line-height: 1.75;
  color: var(--frost);
}

.page-products .pd-member__list li::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 22px;
  width: 8px;
  height: 8px;
  background: var(--cyan);
}

.page-products .pd-member__fig {
  margin-top: clamp(22px, 3.4vw, 34px);
}

/* ---------- 05 三步打开 ---------- */

.page-products .pd-open {
  margin-top: 22px;
  align-items: start;
}

.page-products .pd-steps {
  display: grid;
  gap: 16px;
}

.page-products .pd-step {
  position: relative;
  padding: 20px 18px 18px 20px;
  border: 1px solid var(--line-steel);
  border-left: 3px solid var(--cyan);
  background: linear-gradient(120deg, rgba(12, 23, 48, 0.92), rgba(5, 10, 24, 0.86));
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .pd-step:hover {
  transform: translateX(3px);
  border-left-color: var(--signal);
}

.page-products .pd-step__no {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--signal);
}

.page-products .pd-step__title {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 2vw, 20px);
  letter-spacing: 0.02em;
  color: var(--frost);
}

.page-products .pd-step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-products .pd-step__more {
  margin-top: 12px;
  border-top: 1px dashed var(--line-steel);
  padding-top: 10px;
}

.page-products .pd-step__more summary {
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  list-style: none;
}

.page-products .pd-step__more summary::-webkit-details-marker {
  display: none;
}

.page-products .pd-step__more summary::before {
  content: "+ ";
}

.page-products .pd-step__more[open] summary::before {
  content: "– ";
}

.page-products .pd-step__more p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-products .pd-open__fig {
  margin-top: 16px;
}

/* ---------- 06 设备要求 ---------- */

.page-products .pd-devices {
  margin-top: 22px;
}

.page-products .pd-device-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  border: 0;
  white-space: nowrap;
}

.page-products .pd-device-chips {
  margin-bottom: 16px;
}

.page-products #pddev-web:checked ~ .pd-device-chips .chip[for="pddev-web"],
.page-products #pddev-mobile:checked ~ .pd-device-chips .chip[for="pddev-mobile"],
.page-products #pddev-screen:checked ~ .pd-device-chips .chip[for="pddev-screen"] {
  background: var(--cyan);
  color: var(--deep-space);
  border-color: var(--cyan);
}

.page-products .pd-device-panel {
  display: none;
  border: 1px solid var(--line-steel);
  border-top: 3px solid var(--cyan);
  background: var(--navy-deck);
  padding: 22px 18px 18px;
}

.page-products #pddev-web:checked ~ .pd-device-panel--web,
.page-products #pddev-mobile:checked ~ .pd-device-panel--mobile,
.page-products #pddev-screen:checked ~ .pd-device-panel--screen {
  display: block;
}

.page-products .pd-device-panel__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 2vw, 20px);
  letter-spacing: 0.02em;
  color: var(--frost);
}

.page-products .pd-device-spec {
  margin: 0;
  display: grid;
  gap: 1px;
  background: var(--line-steel);
  border: 1px solid var(--line-steel);
}

.page-products .pd-device-spec > div {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 12px;
  padding: 12px 14px;
  background: rgba(5, 10, 24, 0.7);
}

.page-products .pd-device-spec dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-products .pd-device-spec dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .pd-device-fig {
  margin-top: clamp(22px, 3.4vw, 34px);
}

/* ---------- 07 更新与支持 ---------- */

.page-products .pd-flow {
  margin-top: 22px;
  align-items: start;
}

.page-products .pd-flow__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line-steel);
}

.page-products .pd-flow__item {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 0 0 24px 22px;
}

.page-products .pd-flow__item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--deep-space);
  border: 2px solid var(--cyan);
}

.page-products .pd-flow__item:last-child {
  padding-bottom: 0;
}

.page-products .pd-flow__time {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--signal);
}

.page-products .pd-flow__title {
  margin: 6px 0 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--frost);
}

.page-products .pd-flow__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--mist);
}

.page-products .pd-help {
  margin-top: 26px;
  border: 1px solid var(--line-steel);
  background: linear-gradient(160deg, rgba(14, 111, 107, 0.18), rgba(12, 23, 48, 0.9));
  padding: 22px 18px 20px;
}

.page-products .pd-help__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  color: var(--frost);
}

.page-products .pd-help__list {
  margin: 0 0 16px;
  padding-left: 18px;
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-products .pd-help__text {
  margin: 0 0 18px;
  font-size: 13.5px;
  line-height: 1.76;
  color: var(--mist);
}

/* ---------- 收尾 ---------- */

.page-products .pd-end {
  padding-bottom: clamp(56px, 8vw, 96px);
  border-top: 1px solid var(--line-steel);
  padding-top: clamp(34px, 5vw, 52px);
}

.page-products .pd-end__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--frost);
}

.page-products .pd-end__text {
  max-width: 66ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--mist);
}

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

/* ---------- 窄屏保护 ---------- */

@media (max-width: 480px) {
  .page-products .pd-board__grid {
    grid-template-columns: 1fr;
  }

  .page-products .pd-statline {
    grid-template-columns: 1fr;
  }

  .page-products .pd-device-spec > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-products .pd-switch__tab {
    flex: 1 1 100%;
    border-right: 0;
    border-bottom: 1px solid rgba(16, 19, 31, 0.12);
  }
}

/* ---------- 平板 ---------- */

@media (min-width: 760px) {
  .page-products .pd-entries {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .pd-device-spec > div {
    grid-template-columns: 112px 1fr;
  }
}

/* ---------- 桌面分栏 ---------- */

@media (min-width: 960px) {
  .page-products .pd-hero__inner {
    grid-template-columns: 1.08fr 0.92fr;
  }

  .page-products .pd-feature {
    grid-template-columns: 1.05fr 0.85fr;
  }

  .page-products .pd-venue .pd-photo,
  .page-products .pd-open__fig {
    margin-top: 0;
  }
}

@media (min-width: 1040px) {
  .page-products .pd-layout {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
  }

  .page-products .pd-rail {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
    padding-top: 4px;
    border-left: 1px solid var(--line-steel);
    padding-left: 16px;
  }

  .page-products .pd-rail__list {
    margin-top: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pd-entry,
  .page-products .pd-step,
  .page-products .pd-switch__tab {
    transition: none;
  }

  .page-products .pd-entry:hover,
  .page-products .pd-entry:focus-visible,
  .page-products .pd-step:hover {
    transform: none;
  }
}