:root {
  --bg: #0b1220;
  --bg-soft: #111a2d;
  --panel: #0f1a2e;
  --panel-soft: #14223b;
  --text: #e9efff;
  --muted: #9cb0d7;
  --line: #263a5f;
  --primary: #4da3ff;
  --ok: #4ad9a8;
  --warn: #ffcb6b;
  --shadow: 0 18px 42px rgba(2, 8, 20, 0.38);
}
html[data-theme="light"] {
  --bg: #eef3fb;
  --bg-soft: #e4edf9;
  --panel: #ffffff;
  --panel-soft: #f4f8ff;
  --text: #17253d;
  --muted: #577096;
  --line: #d3e0f4;
  --primary: #1f75dd;
  --ok: #18a779;
  --warn: #c2851a;
  --shadow: 0 16px 34px rgba(86, 120, 160, 0.16);
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(77, 163, 255, 0.18), transparent 60%),
    radial-gradient(900px 500px at 110% 0%, rgba(126, 211, 255, 0.14), transparent 55%),
    linear-gradient(160deg, var(--bg), var(--bg-soft));
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
.page-prefs { position: fixed; top: 14px; right: 14px; z-index: 20; display: flex; gap: 8px; }
.page-prefs .btn-ghost {
  border: 1px solid var(--line); border-radius: 12px; background: color-mix(in srgb, var(--panel) 82%, transparent);
  color: var(--text); font: inherit; font-size: 13px; padding: 9px 12px; cursor: pointer; box-shadow: var(--shadow);
}
.page-prefs .language-select {
  min-width: 86px;
  appearance: none;
}
.wrap { width: min(980px, 94vw); margin: 0 auto; padding: 64px 0 30px; }
.card {
  border: 1px solid var(--line); border-radius: 14px; padding: 16px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel) 96%, transparent), color-mix(in srgb, var(--panel-soft) 88%, transparent));
  box-shadow: var(--shadow); margin-bottom: 14px;
}
.privacy-doc {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px 22px 26px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel) 97%, transparent), color-mix(in srgb, var(--panel-soft) 90%, transparent));
  box-shadow: var(--shadow);
}
.privacy-doc-header {
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.privacy-doc-meta {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}
.privacy-doc section + section {
  margin-top: 18px;
}
.privacy-doc h2 {
  margin-bottom: 8px;
}
.privacy-doc ul {
  margin-top: 6px;
}
h1 { margin: 0; font-size: clamp(24px, 4vw, 36px); line-height: 1.2; }
h2 { margin: 0 0 10px; font-size: 20px; }
h3 { margin: 0 0 8px; font-size: 16px; }
p, li { color: var(--muted); line-height: 1.75; font-size: 14px; }
ul, ol { margin: 8px 0 0; padding-left: 20px; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.nav { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.nav a {
  border: 1px solid var(--line); border-radius: 999px; padding: 7px 12px;
  background: color-mix(in srgb, var(--panel-soft) 86%, transparent);
}
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 10px; }
.tile {
  border: 1px solid var(--line); border-radius: 10px; padding: 10px;
  background: color-mix(in srgb, var(--panel-soft) 82%, transparent);
}
.tile-title { color: var(--text); font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.badge { display: inline-block; font-size: 12px; color: var(--warn); margin-top: 6px; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace; color: var(--text); }
.pre {
  border: 1px solid var(--line); border-radius: 10px; padding: 10px;
  background: #0a1426; color: #d7e4ff; overflow: auto; white-space: pre-wrap;
}
html[data-theme="light"] .pre { background: #f4f8ff; color: #1b2f50; }

.search-row {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 10px;
}

.search-input {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: color-mix(in srgb, var(--panel-soft) 88%, transparent);
  color: var(--text);
  font: inherit;
  font-size: 14px;
  padding: 10px 12px;
}

.search-status {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}

.search-results {
  margin-top: 10px;
  display: grid;
  gap: 8px;
}

.search-item {
  display: block;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  background: color-mix(in srgb, var(--panel-soft) 84%, transparent);
}

.search-item-title {
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

@media (max-width: 640px) {
  .search-row {
    flex-direction: column;
    align-items: stretch;
  }
}