:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --ink: #0b0e11;
  --sub: #5e6673;
  --line: #e6e8eb;
  --blue: #3390ec;
  --gold: #f0b90b;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Noto Sans SC", "Hiragino Sans", sans-serif; line-height: 1.7; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 760px; margin: 0 auto; padding: 28px 20px 64px; }
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 22px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; color: var(--ink); text-decoration: none; }
.brand img { width: 36px; height: 36px; border-radius: 8px; }
.langs { display: flex; flex-wrap: wrap; gap: 6px; }
.langs a { font-size: 13px; color: var(--sub); padding: 4px 8px; border-radius: 8px; }
.langs a.on { background: #e8f2fc; color: var(--blue); font-weight: 600; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 28px 28px 32px; }
h1 { font-size: 28px; line-height: 1.25; margin: 0 0 8px; }
.meta { color: var(--sub); font-size: 14px; margin-bottom: 22px; }
h2 { font-size: 18px; margin: 28px 0 8px; }
p, li { font-size: 15px; color: #1c232b; }
ul { padding-left: 1.2em; }
.foot { margin-top: 22px; color: var(--sub); font-size: 13px; }
nav.links { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 18px; font-size: 14px; }