/* 静态信息页共享样式（about/contact/terms/privacy/refund/pricing/signup）
   设计令牌与主站一致：纸色背景 + 深墨文字 */
:root {
  --bg: #faf7f2;
  --ink: #2b2824;
  --muted: #8a8377;
  --line: #e8e1d4;
  --card: #ffffff;
  --accent-bg: #fdf3e7;
  --accent-line: #f0ddc2;
  --link: #8a5a2b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.75 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.page-head {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 880px; margin: 0 auto; padding: 18px 20px;
}
.brand { font-weight: 800; font-size: 18px; color: var(--ink); letter-spacing: .2px; }
.brand span { color: var(--muted); font-weight: 600; }
.page-head nav { display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center; justify-content: flex-end; font-size: 14px; }
.page-head nav a { color: var(--ink); }
.page-head nav a.cta {
  background: var(--ink); color: #fff; padding: 7px 14px; border-radius: 6px; font-weight: 600;
}
.page-head nav a.cta:hover { text-decoration: none; opacity: .88; }
.static-lang-toggle {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 999px;
  padding: 6px 12px;
  font: inherit;
  font-size: 13px;
  line-height: 1.2;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(66, 49, 27, .08);
}
.static-lang-toggle:hover {
  border-color: var(--accent-line);
  color: var(--link);
}

main { max-width: 880px; margin: 0 auto; padding: 12px 20px 56px; }
main.narrow { max-width: 720px; }
[data-lang-panel] { display: none; }
html:not([data-static-lang]) [data-lang-panel="zh-CN"],
html[data-static-lang="zh-CN"] [data-lang-panel="zh-CN"],
html[data-static-lang="en"] [data-lang-panel="en"] { display: block; }
h1 { font-size: 30px; line-height: 1.3; margin: 28px 0 6px; }
h2 { font-size: 20px; margin: 36px 0 10px; }
h3 { font-size: 16px; margin: 24px 0 8px; }
.sub { color: var(--muted); margin: 0 0 24px; }
.note {
  background: var(--accent-bg); border: 1px solid var(--accent-line);
  border-radius: 8px; padding: 12px 16px; font-size: 14px; margin: 18px 0;
}
ul { padding-left: 22px; }
li { margin: 4px 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.download-stats {
  margin-top: -4px;
}
.download-stats b {
  color: var(--ink);
  font-weight: 800;
}

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 20px 22px; margin: 14px 0;
}

table { border-collapse: collapse; width: 100%; font-size: 14px; margin: 14px 0; background: var(--card); }
th, td { border: 1px solid var(--line); padding: 9px 12px; text-align: left; vertical-align: top; }
th { background: var(--accent-bg); font-weight: 700; }
th[colspan] { color: var(--link); background: #fff7ec; }
td.c, th.c { text-align: center; }

/* 定价卡片 */
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin: 22px 0; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 22px; position: relative; display: flex; flex-direction: column; min-height: 100%; }
.plan.hot { border: 2px solid var(--ink); }
.plan .tag {
  position: absolute; top: -11px; left: 18px; background: var(--ink); color: #fff;
  font-size: 12px; padding: 2px 10px; border-radius: 99px;
}
.plan h3 { margin: 0 0 4px; font-size: 17px; }
.plan .price { font-size: 30px; font-weight: 800; margin: 8px 0 2px; }
.plan .price small { font-size: 13px; font-weight: 400; color: var(--muted); }
.plan .per { color: var(--muted); font-size: 13px; margin-bottom: 14px; }
.plan ul { padding-left: 18px; font-size: 14px; min-height: 120px; }
.plan .btn { margin-top: auto; }
.plan .small.muted { min-height: 18px; }
.btn {
  display: block; text-align: center; padding: 10px 0; border-radius: 8px; font-weight: 700;
  background: var(--ink); color: #fff; border: none; width: 100%; font-size: 15px; cursor: pointer;
}
.btn:hover { text-decoration: none; opacity: .9; }
.btn.ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--ink); }
.btn[disabled] { background: var(--line); color: var(--muted); cursor: not-allowed; }

/* 表单（signup） */
.form-row { margin: 14px 0; }
.form-row label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 5px; }
.form-row input {
  width: 100%; padding: 11px 12px; border: 1px solid var(--line); border-radius: 8px;
  font-size: 15px; background: #fff; color: var(--ink);
}
.form-row input:focus { outline: 2px solid var(--accent-line); border-color: var(--accent-line); }
.form-msg { font-size: 13px; min-height: 20px; margin: 8px 0 0; }
.form-msg.ok { color: #2e7d32; }
.form-msg.err { color: #c62828; }
.oauth-row { display: flex; gap: 10px; margin: 14px 0; }
.oauth-row .btn { display: flex; align-items: center; justify-content: center; gap: 8px; }
.divider {
  display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 12px; margin: 18px 0;
}
.divider::before, .divider::after { content: ""; flex: 1; border-top: 1px solid var(--line); }

.page-foot {
  border-top: 1px solid var(--line); margin-top: 40px; padding: 22px 20px 34px;
  text-align: center; font-size: 13px; color: var(--muted);
}
.page-foot a { color: var(--muted); margin: 0 6px; }

@media (max-width: 640px) {
  .page-head { flex-direction: column; gap: 10px; }
  .page-head nav { justify-content: center; }
  h1 { font-size: 24px; }
  .oauth-row { flex-direction: column; }
}