:root {
  color-scheme: dark;
  --bg: #060b16;
  --panel-strong: rgba(8, 15, 30, 0.88);
  --line: rgba(134, 239, 255, 0.22);
  --text: #f8fbff;
  --muted: #a7b6cd;
  --soft: #7184a4;
  --cyan: #36e7ff;
  --teal: #28e0b8;
  --violet: #8b5cf6;
  --coral: #ff6f87;
  --orange: #ffaf68;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.42);
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  min-width: 320px;
  min-height: 100%;
}

body {
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
}

button {
  border: 0;
  font: inherit;
}

.page {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  background:
    radial-gradient(circle at 72% 28%, rgba(44, 151, 255, 0.24), transparent 34%),
    radial-gradient(circle at 28% 76%, rgba(255, 111, 135, 0.14), transparent 34%),
    linear-gradient(135deg, #07101f 0%, #071427 44%, #0a1120 100%);
}

.page::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.032) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.032) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 78%);
  pointer-events: none;
}

.shell {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 40px));
  min-height: 100svh;
  margin: 0 auto;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.topbar {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: var(--text);
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-left: auto;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid transparent;
  border-radius: 12px;
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  border-color: var(--line);
  background: var(--panel-strong);
  color: var(--text);
}

a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 5px;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px 24px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.site-footer a,
.text-link {
  color: var(--cyan);
  text-underline-offset: 4px;
}

.content-page {
  padding: 44px 0 64px;
}

.content-intro {
  max-width: 820px;
  margin-bottom: 36px;
}

.eyebrow {
  margin-bottom: 16px;
  color: var(--teal);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.content-title {
  max-width: none;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.25;
}

.content-intro p:last-child {
  margin-top: 20px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.9;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.info-panel {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--panel-strong);
}

.info-panel h2 {
  font-size: 20px;
  line-height: 1.5;
}

.info-panel p,
.info-panel li {
  margin-top: 14px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.info-panel ul {
  padding-left: 20px;
}

.info-panel li + li {
  margin-top: 8px;
}

.company-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 24px;
}

.link-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  flex-shrink: 0;
  padding: 12px 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #123449;
  color: var(--text);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  text-align: center;
  text-decoration: none;
}

.link-button:hover {
  background: #19445b;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  align-items: start;
  gap: 24px;
}

.contact-address {
  display: inline-block;
  max-width: 100%;
  margin: 22px 0;
  color: var(--cyan);
  font-size: clamp(22px, 4vw, 34px);
  line-height: 1.5;
  font-weight: 700;
  text-decoration-thickness: 1px;
  text-underline-offset: 7px;
  overflow-wrap: anywhere;
}

.contact-action {
  margin-top: 24px;
}

@media (max-width: 980px) {
  .topbar {
    flex-wrap: wrap;
    padding: 16px 0;
  }

  .info-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .site-nav {
    margin-left: 0;
  }

  .content-page {
    padding: 30px 0 40px;
  }

  .content-intro p:last-child {
    font-size: 16px;
  }

  .info-panel {
    padding: 22px;
    border-radius: 18px;
  }

  .company-panel {
    align-items: flex-start;
    flex-direction: column;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--cyan), #2563eb 58%, var(--violet));
  color: #06101e;
  font-size: 21px;
  font-weight: 900;
  box-shadow: 0 0 34px rgba(54, 231, 255, 0.28);
}

.brand-name {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.brand-title {
  font-size: 16px;
  font-weight: 800;
  white-space: nowrap;
}

.brand-subtitle {
  color: var(--soft);
  font-size: 12px;
}

.version-pill {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(8, 17, 35, 0.58);
  color: var(--muted);
  font-size: 13px;
  backdrop-filter: blur(14px);
  white-space: nowrap;
}

.version-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 18px rgba(40, 224, 184, 0.8);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(440px, 1.1fr);
  gap: clamp(28px, 5vw, 78px);
  align-items: center;
  padding: 34px 0 76px;
}

.hero-copy {
  max-width: 620px;
}

.feature-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.feature-chip {
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 12px;
  border: 1px solid rgba(54, 231, 255, 0.22);
  border-radius: 999px;
  background: rgba(6, 18, 34, 0.62);
  color: #dcecff;
  font-size: 13px;
  font-weight: 700;
  box-shadow: inset 0 0 18px rgba(54, 231, 255, 0.04);
}

.feature-chip:nth-child(2),
.feature-chip:nth-child(5) {
  border-color: rgba(255, 111, 135, 0.28);
  color: #ffd5de;
}

.feature-chip:nth-child(4) {
  border-color: rgba(40, 224, 184, 0.28);
  color: #c6fff2;
}

.chip-icon {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 14px currentColor;
}

h1 {
  max-width: 720px;
  font-size: clamp(36px, 4.3vw, 58px);
  line-height: 1.04;
  letter-spacing: 0;
  font-weight: 900;
}

.product-title {
  display: block;
}

.gradient-text {
  display: block;
  max-width: 620px;
  margin-top: 10px;
  background: linear-gradient(90deg, #ffffff 0%, #baf7ff 42%, #37e7ff 72%, #ff8aa0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: 0.72em;
  line-height: 1.08;
}

.lead {
  width: min(560px, 100%);
  margin-top: 22px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.actions {
  display: grid;
  gap: 18px;
  margin-top: 34px;
}

.download-option {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.download-btn {
  min-width: 232px;
  min-height: 64px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 11px;
  padding: 0 28px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--orange), var(--coral));
  color: #fff;
  border: 0;
  font-size: 20px;
  font-weight: 900;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 18px 48px rgba(255, 111, 135, 0.36);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.download-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 60px rgba(255, 111, 135, 0.44);
}

.download-icon {
  width: 22px;
  height: 22px;
  display: block;
}

.release-note {
  display: grid;
  gap: 4px;
  color: var(--soft);
  font-size: 13px;
  line-height: 1.45;
}

.release-note strong {
  color: #dff7ff;
  font-size: 14px;
}

.hero-art {
  position: relative;
  min-height: 560px;
  border-radius: 34px;
  overflow: hidden;
  background: var(--panel-strong);
  box-shadow: var(--shadow);
  isolation: isolate;
}

.hero-art::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(6, 11, 22, 0.95) 0%, rgba(6, 11, 22, 0.22) 28%, rgba(6, 11, 22, 0) 58%),
    linear-gradient(180deg, rgba(6, 11, 22, 0) 54%, rgba(6, 11, 22, 0.56) 100%);
  z-index: 2;
  pointer-events: none;
}

.hero-art img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 84% center;
  filter: saturate(1.08) contrast(1.04);
}

.status-card {
  position: absolute;
  left: 22px;
  bottom: 22px;
  z-index: 3;
  width: min(320px, calc(100% - 44px));
  padding: 16px;
  border: 1px solid rgba(134, 239, 255, 0.18);
  border-radius: 18px;
  background: rgba(6, 13, 27, 0.72);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(16px);
}

.status-label {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 800;
}

.status-title {
  margin-top: 7px;
  color: var(--text);
  font-size: 18px;
  font-weight: 900;
}

.status-copy {
  margin-top: 7px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

@media (max-width: 980px) {
  .shell {
    width: min(100% - 32px, 720px);
  }

  .topbar {
    min-height: 76px;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 18px 0 42px;
  }

  .hero-art {
    min-height: 420px;
    order: -1;
  }

  .hero-copy {
    max-width: none;
  }

  h1 {
    font-size: clamp(36px, 9vw, 52px);
  }
}

@media (max-width: 620px) {
  .shell {
    width: min(100% - 24px, 520px);
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 10px;
    padding: 16px 0 10px;
  }

  .brand-title {
    white-space: normal;
  }

  .version-pill {
    min-height: 32px;
    font-size: 12px;
  }

  .hero {
    gap: 24px;
    padding-bottom: max(34px, env(safe-area-inset-bottom));
  }

  .hero-art {
    min-height: 240px;
    border-radius: 24px;
    order: 0;
  }

  .hero-art img {
    object-position: 86% center;
  }

  .status-card {
    display: none;
  }

  .feature-row {
    gap: 8px;
    margin-bottom: 20px;
  }

  .feature-chip {
    min-height: 30px;
    padding: 0 10px;
    font-size: 12px;
  }

  h1 {
    font-size: clamp(32px, 8.5vw, 44px);
  }

  .lead {
    margin-top: 16px;
    font-size: 15px;
    line-height: 1.7;
  }

  .actions {
    display: grid;
    gap: 13px;
    margin-top: 26px;
  }

  .download-btn {
    width: 100%;
    min-height: 58px;
    font-size: 18px;
  }
}

@media (max-height: 520px) and (orientation: landscape) {
  .topbar {
    min-height: 64px;
  }

  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 0.92fr);
    gap: 22px;
    padding: 8px 0 28px;
    align-items: start;
  }

  .feature-row {
    display: none;
  }

  h1 {
    font-size: clamp(24px, 3.8vw, 34px);
    line-height: 1.08;
  }

  .lead {
    display: none;
  }

  .actions {
    margin-top: 18px;
  }

  .download-btn {
    min-width: 190px;
    min-height: 52px;
    font-size: 17px;
  }

  .hero-art {
    min-height: 260px;
    border-radius: 22px;
    order: 0;
  }

  .status-card {
    display: none;
  }
}