:root {
  --bg: #0b0f17;
  --panel: #121826;
  --panel-2: #1a2333;
  --text: #e8edf5;
  --muted: #93a1b8;
  --accent: #4f8cff;
  --accent-2: #38d39f;
  --border: rgba(255, 255, 255, 0.08);
}

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

html { color-scheme: dark; }

body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(79, 140, 255, 0.18), transparent 60%),
    radial-gradient(900px 500px at 10% 110%, rgba(56, 211, 159, 0.12), transparent 60%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.wrap { width: 100%; max-width: 860px; }

.hero { text-align: center; margin-bottom: 32px; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(56, 211, 159, 0.12);
  border: 1px solid rgba(56, 211, 159, 0.35);
  color: var(--accent-2);
  font-size: 14px;
  margin-bottom: 20px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-2);
  animation: pulse 1.6s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.8); }
}

h1 {
  font-size: clamp(30px, 6vw, 48px);
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.sub { color: var(--muted); font-size: 15px; line-height: 1.6; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.card {
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.card:hover { transform: translateY(-2px); border-color: rgba(79, 140, 255, 0.4); }

.card-label { color: var(--muted); font-size: 13px; margin-bottom: 10px; }

.card-value {
  font-size: 28px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.card-value.small { font-size: 19px; }

.unit { font-size: 14px; color: var(--muted); font-weight: 400; }

.card-note { color: var(--muted); font-size: 12px; margin-top: 8px; }

.greet-box {
  margin-top: 24px;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
}

.greet label { display: block; color: var(--muted); font-size: 13px; margin-bottom: 12px; }

.greet .row { display: flex; gap: 10px; }

.greet input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: 10px 14px;
  font-size: 15px;
  outline: none;
  transition: border-color 0.15s ease;
}

.greet input:focus { border-color: var(--accent); }

.greet button {
  background: var(--accent);
  border: none;
  border-radius: 10px;
  color: #fff;
  padding: 10px 22px;
  font-size: 15px;
  cursor: pointer;
  transition: filter 0.15s ease;
}

.greet button:hover { filter: brightness(1.15); }

.greeting {
  margin-top: 14px;
  color: var(--accent-2);
  font-size: 16px;
}

.foot {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  margin-top: 28px;
}