/* 颜色和 App 一致（app/lib/ui/core/theme/app_colors.dart） */
:root {
  --bg: #06080b;
  --surface: #0d1117;
  --line: #1c2530;
  --line-strong: #2a3542;
  --grid: rgba(46, 230, 255, .06);
  --text: #e8f0f2;
  --text-2: #c9d4db;
  --text-3: #8a9aa6;
  --lime: #c6ff3d;
  --cyan: #2ee6ff;
  --success: #3dff8c;
  --warning: #ffd23d;
  --danger-text: #ff6b7f;
}

@font-face {
  font-family: "Orbitron";
  src: url("Orbitron-Bold.ttf") format("truetype");
  font-weight: 700;
  font-display: swap;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--text);
  font-family: system-ui, -apple-system, "PingFang SC", "PingFang TC", "Noto Sans SC",
    "Noto Sans TC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

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

.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px; }

/* 顶栏 */
header.top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(6, 8, 11, .88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
header.top .wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 56px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  letter-spacing: .08em;
}
.brand:hover { text-decoration: none; }
.brand img { width: 28px; height: 28px; border-radius: 7px; }
.langs { margin-left: auto; display: flex; gap: 4px; }
.langs button {
  background: none;
  border: 1px solid var(--line);
  color: var(--text-3);
  font: inherit;
  font-size: 13px;
  padding: 2px 10px;
  border-radius: 999px;
  cursor: pointer;
}
.langs button[aria-pressed="true"] { color: var(--bg); background: var(--lime); border-color: var(--lime); }

/* 语言切换：JS 在 <html> 上设置 data-lang，没有 JS 时显示英文 */
html[data-lang="en"] [data-l]:not([data-l="en"]),
html[data-lang="zh"] [data-l]:not([data-l="zh"]),
html[data-lang="hant"] [data-l]:not([data-l="hant"]) { display: none !important; }

main { padding: 32px 0 48px; }

.eyebrow {
  font-family: "Orbitron", sans-serif;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--cyan);
  margin: 0 0 6px;
}
h1 { font-size: 30px; line-height: 1.3; margin: 0 0 12px; }
h2 { font-size: 20px; margin: 32px 0 10px; }
h3 { font-size: 16px; margin: 0 0 6px; }
p { margin: 0 0 12px; color: var(--text-2); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 18px;
  margin: 12px 0;
}
.card.hero { border-color: rgba(198, 255, 61, .45); }
.card.warn { border-color: rgba(255, 210, 61, .5); background: rgba(255, 210, 61, .06); }
.card.danger { border-color: rgba(255, 107, 127, .5); }
.card p:last-child { margin-bottom: 0; }

.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 12px 0; }
.cols .card { margin: 0; }
.keep h3 { color: var(--success); }
.never h3 { color: var(--danger-text); }
.list-lines { white-space: pre-line; font-size: 14px; }

.section { border-top: 1px solid var(--line); padding: 18px 0 6px; }
.section h3 { font-size: 17px; }
.note-warn { color: var(--warning); }

.steps { padding-left: 22px; color: var(--text-2); }
.steps li { margin-bottom: 8px; }
.path { color: var(--lime); font-weight: 600; }

/* 首页 */
.hero-block { display: flex; gap: 20px; align-items: center; margin: 8px 0 24px; }
.hero-block img { width: 96px; height: 96px; border-radius: 22px; flex: none; }
.hero-block h1 { white-space: pre-line; }
.tagline { color: var(--lime); font-weight: 700; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid .card { margin: 0; }
.grid .card h3 { color: var(--lime); }
.badge {
  display: inline-block;
  border: 1px dashed var(--line-strong);
  color: var(--text-3);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 14px;
}
.links { display: flex; flex-wrap: wrap; gap: 8px 16px; }

footer.bottom {
  border-top: 1px solid var(--line);
  color: var(--text-3);
  font-size: 13px;
  padding: 20px 0 32px;
}
footer.bottom p { color: var(--text-3); margin: 4px 0; }
footer.bottom .links { margin-bottom: 8px; }

@media (max-width: 560px) {
  h1 { font-size: 24px; }
  .cols, .grid { grid-template-columns: 1fr; }
  .hero-block { flex-direction: column; align-items: flex-start; }
  .hero-block img { width: 72px; height: 72px; }
}