:root {
  --background: #eff3f6;
  --surface: #ffffff;
  --surface-soft: #f7f9fb;
  --text: #15202b;
  --muted: #6b7785;
  --line: #dce4eb;
  --green: #1f7a68;
  --gold: #d7a039;
  --red: #d94854;
  --blue: #2f6fb2;
  --ink: #17202a;
  --shadow: 0 24px 70px rgba(21, 32, 43, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100%;
  margin: 0;
  background:
    linear-gradient(135deg, rgba(31, 122, 104, 0.12), transparent 34%),
    linear-gradient(315deg, rgba(215, 160, 57, 0.16), transparent 30%),
    var(--background);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Microsoft YaHei", sans-serif;
  line-height: 1.55;
}

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

.page-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: clamp(20px, 5vw, 56px);
}

.profile-card {
  width: min(100%, 520px);
  padding: clamp(20px, 5vw, 34px);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(220, 228, 235, 0.9);
  border-radius: 16px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.brand-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 28px;
}

.brand-logo {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  background: var(--ink);
  border-radius: 10px;
  color: #ffffff;
  font-weight: 800;
  letter-spacing: 0;
}

.domain {
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

.profile-hero {
  text-align: center;
}

.avatar {
  display: grid;
  width: 96px;
  height: 96px;
  margin: 0 auto 18px;
  place-items: center;
  background:
    linear-gradient(140deg, rgba(31, 122, 104, 0.95), rgba(23, 32, 42, 0.95)),
    var(--ink);
  border: 4px solid #ffffff;
  border-radius: 50%;
  box-shadow: 0 16px 34px rgba(21, 32, 43, 0.22);
  color: #ffffff;
}

.avatar span {
  font-size: 28px;
  font-weight: 850;
  letter-spacing: 0;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(34px, 9vw, 54px);
  line-height: 1.05;
  letter-spacing: 0;
}

.intro {
  max-width: 420px;
  margin: 0 auto 28px;
  color: var(--muted);
  font-size: 16px;
}

.link-list {
  display: grid;
  gap: 12px;
}

.link-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 14px;
  align-items: center;
  min-height: 72px;
  padding: 12px 14px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 12px;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background-color 160ms ease;
}

.link-item:hover {
  transform: translateY(-2px);
  background: #ffffff;
  border-color: rgba(31, 122, 104, 0.36);
}

.link-icon {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 12px;
  color: #ffffff;
  font-size: 14px;
  font-weight: 850;
  letter-spacing: 0;
}

.link-item strong {
  display: block;
  font-size: 17px;
  line-height: 1.25;
}

.link-item small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.social-x .link-icon {
  background: #111820;
}

.social-ins .link-icon {
  background: linear-gradient(140deg, #7b3ff2, #e9447a 58%, #f2a53a);
}

.social-ytb .link-icon {
  background: var(--red);
}

.exchange-binance .link-icon {
  background: var(--gold);
}

.exchange-okx .link-icon {
  background: #101820;
}

.broker-longbridge .link-icon {
  background: var(--green);
}

.broker-futu .link-icon {
  background: var(--blue);
}

.site-footer {
  margin-top: 24px;
  color: var(--muted);
  text-align: center;
  font-size: 13px;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 540px) {
  .page-shell {
    align-items: start;
    padding: 14px;
  }

  .profile-card {
    min-height: calc(100vh - 28px);
    border-radius: 14px;
  }

  .brand-row {
    margin-bottom: 22px;
  }

  .intro {
    font-size: 15px;
  }

  .link-item {
    min-height: 68px;
    border-radius: 10px;
  }
}

@media (max-width: 360px) {
  .domain {
    font-size: 12px;
  }

  .link-item {
    grid-template-columns: 42px 1fr;
    gap: 12px;
    padding: 10px;
  }

  .link-icon {
    width: 42px;
    height: 42px;
  }
}