:root { color-scheme: light dark; font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif; }
body { margin: 0; background: #f4f7fb; color: #172033; }
main { width: min(820px, calc(100% - 32px)); margin: 32px auto; padding: clamp(22px, 5vw, 52px); background: white; border: 1px solid #dfe6ef; border-radius: 20px; box-shadow: 0 20px 60px #1d335215; }
h1 { margin-top: 0; font-size: clamp(28px, 5vw, 42px); }
h2 { margin-top: 34px; font-size: 20px; }
p, li { line-height: 1.8; color: #40506a; }
.meta, .draft { padding: 12px 16px; border-radius: 10px; background: #eef5ff; color: #24558c; }
.draft { background: #fff6dc; color: #745516; }
a { color: #126bd6; }
form { display: grid; gap: 10px; margin: 28px 0; }
label { font-weight: 700; color: #26364d; }
input, textarea { box-sizing: border-box; width: 100%; padding: 12px 14px; border: 1px solid #cbd6e4; border-radius: 10px; background: white; color: #172033; font: inherit; }
button { min-height: 48px; margin-top: 8px; border: 0; border-radius: 12px; background: #126bd6; color: white; font: inherit; font-weight: 800; cursor: pointer; }
#result { min-height: 28px; font-weight: 700; }
@media (prefers-color-scheme: dark) {
  body { background: #07101d; color: #f1f5fb; }
  main { background: #0f1b2d; border-color: #263650; box-shadow: none; }
  p, li { color: #b8c5d6; }
  .meta { background: #122f50; color: #9bcaff; }
  .draft { background: #433619; color: #ffe099; }
  label { color: #e6eef9; }
  input, textarea { background: #132238; border-color: #3b4d66; color: #f1f5fb; }
}