/* ===== CSS 变量与基础重置 ===== */

:root {
  --bg: #f5f6f3;
  --surface: #ffffff;
  --surface-2: #f9faf7;
  --ink: #1c2420;
  --muted: #627068;
  --line: #dfe5dc;
  --line-strong: #c9d4ca;
  --teal: #087f78;
  --teal-soft: #e3f3f0;
  --amber: #b66d00;
  --amber-soft: #fff1d7;
  --rose: #b9414b;
  --rose-soft: #ffe4e7;
  --blue: #315f9d;
  --blue-soft: #e8eef8;
  --green: #2f7d42;
  --shadow: 0 18px 42px rgba(28, 36, 32, 0.08);
  --radius: 8px;
  --transition: 0.2s ease;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: light;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  letter-spacing: 0;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.eyebrow {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.muted {
  color: var(--muted);
  font-size: 13px;
}

/* 滚动条 */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }