:root { --bg:#0e1116; --panel:#161b22; --line:#2a313c; --text:#e8ecf1; --muted:#9aa4b2; --accent:#4c9aff; --green:#36d399; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.7;
       font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif; }
main { max-width: 860px; margin: 0 auto; padding: 48px 22px 64px; }
a { color: #8fc0ff; }
header .tag { color: var(--muted); font-size: 15px; }
h1 { font-size: 40px; line-height: 1.2; margin: 8px 0 12px; }
h1 span { background: linear-gradient(90deg,#7cb7ff,#36d399); -webkit-background-clip: text; background-clip: text; color: transparent; }
h2 { font-size: 24px; margin: 40px 0 12px; border-left: 5px solid var(--accent); padding-left: 12px; }
h3 { font-size: 18px; margin: 22px 0 6px; }
.lead { font-size: 19px; color: #c9d1db; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; }
.card b { display: block; margin-bottom: 4px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
img.shot { width: 100%; border-radius: 12px; border: 1px solid var(--line); }
pre, code { font-family: ui-monospace, "JetBrains Mono", Menlo, Consolas, monospace; }
pre { background: #0b1220; border: 1px solid #1f2a3a; border-radius: 10px; padding: 14px 16px; overflow-x: auto; font-size: 14px; }
code { background: #0b1220; padding: 1px 6px; border-radius: 5px; font-size: 0.92em; }
.btns a { display: inline-block; margin: 6px 10px 0 0; padding: 9px 16px; border-radius: 10px; text-decoration: none;
          background: var(--accent); color: #fff; font-weight: 600; }
.btns a.alt { background: var(--panel); border: 1px solid var(--line); color: var(--text); }
footer { margin-top: 48px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.lang { color: var(--muted); font-size: 14px; }