/* ===== 下载中心 /download/ ===== */
.page-products {
  --dl-gap: clamp(20px, 3.2vw, 44px);
  --dl-block: clamp(52px, 8vw, 100px);
}

.page-products [id] {
  scroll-margin-top: 112px;
}

/* ---------- 首屏 ---------- */
.page-products .dl-hero {
  position: relative;
  padding: clamp(132px, 20vw, 216px) 0 clamp(56px, 9vw, 104px);
  background:
    radial-gradient(120% 90% at 88% 4%, rgba(127, 196, 232, .34) 0%, rgba(127, 196, 232, 0) 58%),
    linear-gradient(158deg, #0d4f89 0%, #1063A8 44%, #0A2E4D 100%);
  color: #FFFFFF;
  overflow: hidden;
}

.page-products .dl-hero::after {
  content: "";
  position: absolute;
  left: -6%;
  right: -6%;
  bottom: -1px;
  height: clamp(46px, 7vw, 90px);
  background: #FFFFFF;
  clip-path: polygon(0 100%, 100% 24%, 100% 100%);
  pointer-events: none;
}

.page-products .dl-hero .breadcrumb {
  position: relative;
  z-index: 1;
  margin-bottom: clamp(18px, 3vw, 30px);
  color: rgba(255, 255, 255, .68);
}

.page-products .dl-hero .breadcrumb a {
  color: rgba(255, 255, 255, .9);
  text-decoration: none;
}

.page-products .dl-hero .breadcrumb a:hover {
  color: #F5B63C;
}

.page-products .dl-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--dl-gap);
  align-items: center;
}

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

.page-products .dl-hero .eyebrow {
  display: inline-block;
  color: #F5B63C;
  letter-spacing: .1em;
}

.page-products .dl-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(29px, 6.2vw, 60px);
  line-height: 1.12;
  letter-spacing: -.02em;
}

.page-products .dl-hero__intro {
  max-width: 56ch;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  font-size: clamp(15px, 1.85vw, 17.5px);
  line-height: 1.78;
  color: rgba(255, 255, 255, .86);
}

.page-products .dl-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3.4vw, 34px);
}

.page-products .dl-hero__actions .btn--line {
  border-color: rgba(255, 255, 255, .55);
  color: #FFFFFF;
}

.page-products .dl-hero__actions .btn--line:hover {
  border-color: #F5B63C;
  color: #F5B63C;
}

.page-products .dl-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: clamp(24px, 3.6vw, 36px) 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: rgba(255, 255, 255, .78);
}

.page-products .dl-hero__meta li {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
}

.page-products .dl-hero__meta li::before {
  content: "";
  width: 14px;
  height: 1px;
  background: #F5B63C;
  transform: translateY(-4px);
}

.page-products .dl-hero__meta .num {
  color: #FFFFFF;
  font-size: 15px;
}

.page-products .dl-hero__media {
  margin: 0;
  min-width: 0;
  border: 1px solid rgba(255, 255, 255, .26);
  background: rgba(255, 255, 255, .06);
}

.page-products .dl-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

/* ---------- 功能展台 ---------- */
.page-products .dl-modules {
  padding-top: clamp(24px, 4vw, 40px);
}

.page-products .rig {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 40px);
}

.page-products .rig__nav {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: none;
}

.page-products .rig__nav::-webkit-scrollbar {
  display: none;
}

.page-products .rig__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  background: var(--white);
  border: 1px solid var(--line);
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-products .rig__link .num {
  font-size: 11px;
  color: var(--blue);
}

.page-products .rig__link:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.page-products .rig__link:focus-visible,
.page-products .feat__note a:focus-visible,
.page-products .steps__foot a:focus-visible,
.page-products .dl-tail__actions a:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-products .rig__body {
  display: flex;
  flex-direction: column;
  gap: clamp(22px, 3.2vw, 40px);
  min-width: 0;
}

.page-products .feat {
  min-width: 0;
  padding: clamp(20px, 3.2vw, 36px);
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 3px solid var(--blue);
}

.page-products .rig__body > .feat:nth-child(even) {
  border-top-color: var(--green);
}

.page-products .feat__head h3 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(20px, 2.6vw, 27px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-products .feat p {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.76;
  color: var(--gray-blue);
}

.page-products .feat__media {
  margin: 18px 0 0;
  border: 1px solid var(--line);
}

.page-products .feat__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 8 / 5;
  object-fit: cover;
}

.page-products .feat-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .feat-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--gray-blue);
}

.page-products .feat-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 8px;
  height: 1px;
  background: var(--green);
}

.page-products .feat-list strong {
  color: var(--ink);
  font-weight: 700;
}

.page-products .feat p.feat__note {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--gray-blue);
}

.page-products .feat--split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
  align-items: start;
}

.page-products .feat__side {
  margin: 0;
  border: 1px solid var(--line);
}

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

.page-products .feat__body {
  min-width: 0;
}

/* ---------- V4 更新 ---------- */
.page-products .dl-update {
  position: relative;
  padding: var(--dl-block) 0;
  background: linear-gradient(180deg, #0A2E4D 0%, #082238 100%);
  color: #FFFFFF;
  overflow: hidden;
}

.page-products .dl-update::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--blue) 0 25%, var(--green) 25% 50%, var(--sand) 50% 75%, var(--orange) 75% 100%);
}

.page-products .dl-update .sec-title {
  color: #FFFFFF;
}

.page-products .dl-update .sec-sub {
  color: rgba(255, 255, 255, .72);
}

.page-products .dl-update .sec-num {
  color: var(--sand);
}

.page-products .log {
  margin-top: clamp(26px, 4vw, 44px);
  border-top: 1px solid rgba(255, 255, 255, .18);
}

.page-products .log-item {
  border-bottom: 1px solid rgba(255, 255, 255, .18);
}

.page-products .log-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px 14px;
  width: 100%;
  padding: 20px 2px;
  background: none;
  border: 0;
  cursor: pointer;
  text-align: left;
  font: inherit;
  color: #FFFFFF;
}

.page-products .log-head:hover .log-head__title {
  color: var(--sand);
}

.page-products .log-head:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
}

.page-products .log-head__num {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--sand);
}

.page-products .log-head__title {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(18px, 2.2vw, 23px);
  letter-spacing: -.01em;
  transition: color .18s var(--ease);
}

.page-products .log-head__hint {
  margin-left: auto;
  font-size: 13px;
  color: rgba(255, 255, 255, .58);
}

.page-products .log-item .disclosure__icon {
  flex: 0 0 auto;
  color: var(--sand);
}

.page-products .log-panel {
  max-width: 74ch;
  padding: 0 2px 24px;
}

.page-products .log-panel p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .76);
}

.page-products .log-panel p:last-child {
  margin-bottom: 0;
}

/* ---------- 设备与系统要求 ---------- */
.page-products .dl-devices {
  padding-top: var(--dl-block);
}

.page-products .devices-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-products .devices-figure {
  position: relative;
  padding: 0 0 clamp(52px, 8vw, 76px);
  min-width: 0;
}

.page-products .device-browser {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 12px 14px;
  aspect-ratio: 4 / 3;
  background: var(--white);
  border: 1px solid var(--line);
}

.page-products .device-browser__bar {
  display: block;
  height: 9px;
  background: var(--blue-mist);
  border-left: 30px solid var(--blue-light);
}

.page-products .device-browser__line {
  display: block;
  height: 8px;
  background: var(--blue-mist);
}

.page-products .device-browser__line--short {
  width: 62%;
}

.page-products .device-browser__line--green {
  background: var(--green-light);
}

.page-products .device-phone {
  position: absolute;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  gap: 7px;
  width: clamp(76px, 24%, 116px);
  padding: 12px 9px;
  aspect-ratio: 9 / 17;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 10px 22px rgba(10, 46, 77, .1);
}

.page-products .device-phone__line {
  display: block;
  height: 7px;
  background: var(--blue-mist);
}

.page-products .device-phone__line--top {
  background: var(--blue-light);
}

.page-products .device-phone__line--short {
  width: 58%;
}

.page-products .spec-list {
  display: grid;
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: 0;
}

.page-products .spec {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .spec:first-child {
  border-top: 1px solid var(--line);
}

.page-products .spec__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .07em;
  color: var(--blue);
}

.page-products .spec__val {
  display: block;
  font-size: 15.5px;
  line-height: 1.74;
  color: var(--gray-blue);
  word-break: break-word;
}

.page-products .devices-media {
  margin: clamp(28px, 4.2vw, 48px) 0 0;
  border: 1px solid var(--line);
}

.page-products .devices-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

/* ---------- 三步开始 ---------- */
.page-products .dl-start {
  padding: var(--dl-block) 0;
  background: linear-gradient(150deg, #1063A8 0%, #0d4f89 55%, #0A2E4D 100%);
  color: #FFFFFF;
}

.page-products .dl-start .sec-title {
  color: #FFFFFF;
}

.page-products .dl-start .sec-sub {
  color: rgba(255, 255, 255, .74);
}

.page-products .dl-start .sec-num {
  color: var(--sand);
}

.page-products .steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin-top: clamp(26px, 4vw, 44px);
}

.page-products .step {
  position: relative;
  margin-bottom: 28px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .3);
}

.page-products .step:last-child {
  margin-bottom: 0;
}

.page-products .step__num {
  display: block;
  font-size: clamp(30px, 4.6vw, 46px);
  font-weight: 700;
  line-height: 1;
  color: var(--sand);
}

.page-products .step__title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(18px, 2.2vw, 22px);
  letter-spacing: -.01em;
  color: #FFFFFF;
}

.page-products .step p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(255, 255, 255, .78);
}

.page-products .steps__foot {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: rgba(255, 255, 255, .74);
}

.page-products .steps__foot .link-arrow {
  color: var(--sand);
}

/* ---------- 使用场景 ---------- */
.page-products .dl-scenes {
  padding-top: var(--dl-block);
}

.page-products .scenes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 2.8vw, 30px);
}

.page-products .scene {
  padding-top: 20px;
  border-top: 2px solid var(--line);
  min-width: 0;
}

.page-products .scene__time {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .07em;
  color: var(--orange);
}

.page-products .scene h3 {
  margin: 8px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(17px, 2vw, 20px);
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-products .scene p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--gray-blue);
}

.page-products .scenes-media {
  margin: clamp(28px, 4.2vw, 48px) 0 0;
  border: 1px solid var(--line);
}

.page-products .scenes-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 8 / 3;
  object-fit: cover;
}

/* ---------- 收尾 ---------- */
.page-products .dl-tail {
  padding: clamp(40px, 6vw, 76px) 0;
  background: var(--blue-mist);
}

.page-products .dl-tail__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-products .dl-tail h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(22px, 3vw, 31px);
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-products .dl-tail p {
  max-width: 60ch;
  margin: 12px 0 0;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--gray-blue);
}

.page-products .dl-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-products .spec {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 6px 20px;
  }

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

@media (min-width: 860px) {
  .page-products .dl-hero__grid {
    grid-template-columns: 1.12fr 1fr;
    gap: clamp(32px, 5vw, 64px);
  }

  .page-products .rig {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: clamp(32px, 4.5vw, 64px);
    align-items: start;
  }

  .page-products .rig__nav {
    position: sticky;
    top: 104px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    overflow: visible;
    padding: 0;
    border-left: 1px solid var(--line);
  }

  .page-products .rig__link {
    margin-left: -1px;
    padding: 12px 0 12px 16px;
    background: transparent;
    border: 0;
    border-left: 2px solid transparent;
  }

  .page-products .rig__link:hover {
    background: transparent;
    border-left-color: var(--blue);
  }

  .page-products .feat--split {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  }

  .page-products .devices-grid {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
  }

  .page-products .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(20px, 3vw, 38px);
  }

  .page-products .step {
    margin-bottom: 0;
  }

  .page-products .dl-tail__inner {
    grid-template-columns: minmax(0, 1.4fr) auto;
    align-items: center;
    gap: 40px;
  }
}

@media (min-width: 1100px) {
  .page-products .spec {
    grid-template-columns: 150px minmax(0, 1fr);
  }
}

@media (max-width: 560px) {
  .page-products .feat {
    padding: 18px;
  }

  .page-products .log-head__hint {
    display: none;
  }

  .page-products .dl-hero__meta {
    gap: 8px 16px;
  }

  .page-products .device-phone {
    width: 30%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .rig__link,
  .page-products .log-head__title {
    transition: none;
  }
}