:root {
  --bg: #07111B;
  --bg-2: #091827;
  --panel: #0E2030;
  --panel-2: #102638;
  --panel-3: #14314A;
  --line: rgba(172, 214, 232, 0.14);
  --line-2: rgba(56, 224, 178, 0.32);
  --text: #EAF2F8;
  --text-2: #B9C9D5;
  --muted: #8296A8;
  --accent: #38E0B2;
  --accent-2: #79F2D2;
  --blue: #60B8FF;
  --violet: #8CA7FF;
  --dark: #041018;
  --radius: 22px;
  --radius-lg: 30px;
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.36);
  --max: 1220px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 16% 4%, rgba(56, 224, 178, 0.13), transparent 28%),
    radial-gradient(circle at 82% 8%, rgba(96, 184, 255, 0.10), transparent 30%),
    radial-gradient(circle at 72% 64%, rgba(140, 167, 255, 0.055), transparent 34%),
    linear-gradient(180deg, #07111B 0%, #07111B 48%, #081621 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", Arial, sans-serif;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.024) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.024) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.82), rgba(0,0,0,.34), transparent 86%);
}

a { color: inherit; text-decoration: none; }
button { font: inherit; }

.container {
  width: min(var(--max), calc(100% - 44px));
  margin: 0 auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 17, 27, .78);
  border-bottom: 1px solid rgba(255,255,255,.07);
  backdrop-filter: blur(18px);
}

.nav {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: #03130F;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 32px rgba(56, 224, 178, .22);
  font-size: 20px;
  font-weight: 950;
  letter-spacing: -.06em;
}

.brand-text strong {
  display: block;
  font-size: 16px;
  line-height: 1;
  letter-spacing: .13em;
}

.brand-text span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  min-height: 42px;
  padding: 11px 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 14px;
  font-weight: 780;
  white-space: nowrap;
  transition: transform .22s ease, background .22s ease, border-color .22s ease, box-shadow .22s ease;
}

.btn:hover { transform: translateY(-2px); }

.btn svg {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
}

.btn .chevron {
  width: 14px;
  height: 14px;
  margin-left: 2px;
  opacity: .86;
  transition: transform .18s ease;
}

.download-group.open .btn .chevron {
  transform: rotate(180deg);
}

.btn-primary {
  color: #03130F;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 14px 36px rgba(56, 224, 178, .18);
}

.btn-secondary {
  color: var(--text);
  background: rgba(255,255,255,.055);
  border-color: rgba(255,255,255,.12);
}

.btn-ghost {
  color: var(--text-2);
  background: rgba(255,255,255,.04);
  border-color: rgba(255,255,255,.11);
}

.download-group {
  position: relative;
  display: inline-flex;
}

.dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 346px;
  padding: 9px;
  border-radius: 18px;
  background: rgba(10, 24, 38, .98);
  border: 1px solid rgba(172, 214, 232, .18);
  box-shadow: 0 24px 50px rgba(0,0,0,.34);
  backdrop-filter: blur(16px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}

.download-group.open .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 48px;
  padding: 0 14px;
  border-radius: 13px;
  color: var(--text-2);
  font-size: 15px;
  font-weight: 780;
  white-space: nowrap;
  line-height: 1;
}

.dropdown a:hover {
  color: var(--text);
  background: rgba(255,255,255,.06);
}

.dropdown-label {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  min-width: 0;
}

.chip {
  flex: 0 0 auto;
  min-width: 52px;
  height: 28px;
  padding: 0 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  color: #BFF9E7;
  background: rgba(56,224,178,.10);
  border: 1px solid rgba(56,224,178,.20);
  font-size: 12px;
  font-weight: 860;
  white-space: nowrap;
}

.mobile-toggle,
.mobile-menu { display: none; }

section { padding: 64px 0; }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 38px;
  margin-bottom: 28px;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(28px, 3.2vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.045em;
  font-weight: 860;
}

.section-tag {
  margin-bottom: 12px;
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 11px;
  border-radius: 999px;
  color: #BFF9E7;
  background: rgba(56,224,178,.07);
  border: 1px solid rgba(56,224,178,.15);
  font-size: 12px;
  font-weight: 860;
  letter-spacing: .08em;
  text-transform: uppercase;
}

footer {
  padding: 28px 0;
  color: var(--muted);
  border-top: 1px solid rgba(255,255,255,.075);
  font-size: 13px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .58s ease, transform .58s cubic-bezier(.16,1,.3,1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1120px) {
  .section-head {
    align-items: start;
    flex-direction: column;
    gap: 14px;
  }
}

@media (max-width: 860px) {
  .nav-actions .download-group {
    display: none;
  }

  .mobile-toggle {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 999px;
    color: var(--text);
    background: rgba(255,255,255,.055);
    border: 1px solid rgba(255,255,255,.11);
    cursor: pointer;
  }

  .mobile-menu {
    padding: 0 0 16px;
    border-top: 1px solid rgba(255,255,255,.07);
  }

  .mobile-menu.open {
    display: grid;
    gap: 10px;
  }

  .mobile-menu a {
    padding: 10px 0;
    color: var(--text-2);
  }
}

@media (max-width: 560px) {
  .container {
    width: min(var(--max), calc(100% - 28px));
  }

  .brand-text span {
    display: none;
  }

  .btn {
    width: 100%;
  }

  section {
    padding: 48px 0;
  }

  .section-head h2 {
    font-size: 28px;
  }

  .dropdown {
    min-width: min(346px, calc(100vw - 42px));
  }
}

    
.contact-hero {
  padding: 76px 0 38px;
}

.contact-hero-grid {
  display: grid;
  grid-template-columns: minmax(360px, 1fr);
  align-items: center;
  gap: 50px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #BFF9E7;
  height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(56,224,178,.07);
  border: 1px solid rgba(56,224,178,.15);
  font-size: 13px;
  font-weight: 760;
}

.contact-hero h1 {
  margin: 20px 0 0;
  font-size: clamp(38px, 4.5vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.055em;
  font-weight: 900;
}

.contact-hero p {
  max-width: 570px;
  margin: 20px 0 0;
  color: var(--text-2);
  font-size: 16px;
  line-height: 1.82;
}

.contact-info-panel {
  padding: 24px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 18% 8%, rgba(56,224,178,.12), transparent 32%),
    linear-gradient(180deg, rgba(14,32,48,.88), rgba(10,24,38,.78));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.info-row {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 70px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(255,255,255,.075);
}

.info-row:last-child {
  border-bottom: 0;
}

.info-icon {
  width: 44px;
  height: 44px;
  border-radius: 15px;
  display: grid;
  place-items: center;
  color: #03130F;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  font-size: 20px;
  font-weight: 900;
}

.info-row strong {
  display: block;
  color: var(--text);
  font-size: 16px;
  letter-spacing: -0.02em;
}

.info-row span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 13px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.contact-card {
  padding: 18px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(14,32,48,.88), rgba(10,24,38,.78));
  border: 1px solid var(--line);
  box-shadow: 0 18px 46px rgba(0,0,0,.20);
  transition: transform .24s ease, border-color .24s ease, background .24s ease;
}

.contact-card:hover {
  transform: translateY(-5px);
  border-color: var(--line-2);
  background: linear-gradient(180deg, rgba(17,42,61,.92), rgba(10,24,38,.84));
}

.contact-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}

.contact-name {
  display: flex;
  align-items: center;
  gap: 10px;
}

.contact-logo {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: #03130F;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.contact-logo svg {
  width: 21px;
  height: 21px;
}

.contact-name strong {
  display: block;
  font-size: 17px;
  letter-spacing: -0.035em;
}

.contact-name span {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.status-pill {
  height: 26px;
  padding: 0 9px;
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  color: #BFF9E7;
  background: rgba(56,224,178,.08);
  border: 1px solid rgba(56,224,178,.16);
  font-size: 12px;
  font-weight: 820;
  white-space: nowrap;
}

.qr-box {
  aspect-ratio: 1 / 1;
  border-radius: 20px;
  padding: 16px;
  background: #EAF2F8;
  border: 1px solid rgba(255,255,255,.10);
  overflow: hidden;
}

.qr-art {
  width: 100%;
  height: 100%;
  border-radius: 8px;
  background:
    linear-gradient(90deg, #07111B 10px, transparent 10px) 0 0 / 32px 32px,
    linear-gradient(#07111B 10px, transparent 10px) 0 0 / 32px 32px,
    radial-gradient(circle at 16% 16%, #07111B 0 24px, transparent 25px),
    radial-gradient(circle at 84% 16%, #07111B 0 24px, transparent 25px),
    radial-gradient(circle at 16% 84%, #07111B 0 24px, transparent 25px),
    #EAF2F8;
  position: relative;
}

.qr-art::before,
.qr-art::after {
  content: "";
  position: absolute;
  background: #07111B;
}

.qr-art::before {
  width: 28%;
  height: 12%;
  left: 42%;
  top: 45%;
  box-shadow:
    -46px 34px 0 #07111B,
    52px 38px 0 #07111B,
    14px 76px 0 #07111B;
}

.qr-art::after {
  width: 13%;
  height: 34%;
  left: 66%;
  top: 38%;
  box-shadow:
    -88px -6px 0 #07111B,
    -28px 74px 0 #07111B,
    42px 58px 0 #07111B;
}

.contact-meta {
  margin-top: 16px;
}

.contact-meta p {
  margin: 0;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.65;
}

.contact-action {
  margin-top: 14px;
  display: flex;
  gap: 10px;
}

.copy-btn {
  width: 100%;
  min-height: 38px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.11);
  color: var(--text);
  background: rgba(255,255,255,.045);
  cursor: pointer;
  font-size: 13px;
  font-weight: 760;
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}

.copy-btn:hover {
  transform: translateY(-2px);
  background: rgba(255,255,255,.07);
  border-color: rgba(56,224,178,.22);
}

.notice-card {
  margin-top: 18px;
  padding: 20px;
  border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(56,224,178,.09), rgba(96,184,255,.055)),
    rgba(14,32,48,.72);
  border: 1px solid rgba(56,224,178,.16);
}

.notice-card strong {
  display: block;
  font-size: 17px;
  letter-spacing: -0.03em;
}

.notice-card p {
  margin: 8px 0 0;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.7;
}

@media (max-width: 1120px) {
  .contact-hero-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .contact-hero {
    padding-top: 54px;
  }

  .contact-hero h1 {
    font-size: 36px;
  }

  .contact-info-panel {
    padding: 20px;
  }

  .contact-action {
    display: grid;
  }
}

  
.account-line {
  margin: 0;
  color: var(--text);
  font-size: 15px;
  font-weight: 820;
  text-align: center;
}

.brand-logo {
  background: url("../images/app-icon.webp") center / cover no-repeat !important;
  color: transparent !important;
  overflow: hidden;
}
.brand-logo img { display: block; width: 100%; height: 100%; object-fit: cover; }


.qr-img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  border-radius: 18px;
  background: #fff;
}
.contact-logo img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  border-radius: inherit;
}


.placeholder-box { background: rgba(255,255,255,.045); border-color: rgba(255,255,255,.09); }
.placeholder-qr { width: 100%; height: 100%; border-radius: 16px; display: grid; place-items: center; align-content: center; gap: 12px; text-align: center; background: rgba(7,17,27,.35); color: var(--text-2); }
.placeholder-qr svg { width: 58px; height: 58px; }
.placeholder-qr strong { display: block; font-size: 16px; color: var(--text); letter-spacing: -.03em; }
.wechat-logo { background: #07C160 !important; color: #fff !important; }
.telegram-logo { background: #229ED9 !important; color: #fff !important; }
.wechat-placeholder svg { color: #07C160; }
.telegram-placeholder svg { color: #229ED9; }
.pending-pill { color: var(--muted); background: rgba(255,255,255,.045); border-color: rgba(255,255,255,.10); }
.muted-line { color: var(--muted) !important; }