* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
       background: #f7f8fa; color: #2c3e50; line-height: 1.8; }
.container { max-width: 860px; margin: 0 auto; padding: 0 20px; }
header.site { background: #fff; border-bottom: 1px solid #e8eaed; position: sticky; top: 0; z-index: 10; }
header.site .container { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.logo { font-size: 20px; font-weight: 700; color: #1a73e8; text-decoration: none; }
.logo span { color: #2c3e50; }
nav a { margin-left: 24px; color: #5f6368; text-decoration: none; font-size: 15px; }
nav a:hover, nav a.active { color: #1a73e8; }
.hero { background: linear-gradient(135deg, #1a73e8 0%, #4285f4 60%, #6ba3f7 100%); color: #fff; padding: 64px 0; }
.hero h1 { font-size: 32px; margin-bottom: 12px; }
.hero p { font-size: 16px; opacity: .92; max-width: 560px; }
main { padding: 40px 0 60px; }
.card { background: #fff; border: 1px solid #e8eaed; border-radius: 10px; padding: 24px 28px; margin-bottom: 20px; }
.card h2 { font-size: 20px; margin-bottom: 8px; }
.card h2 a { color: #2c3e50; text-decoration: none; }
.card h2 a:hover { color: #1a73e8; }
.meta { color: #9aa0a6; font-size: 13px; margin-bottom: 10px; }
.card p { color: #4b5563; font-size: 15px; }
.tag { display: inline-block; background: #e8f0fe; color: #1a73e8; font-size: 12px;
       border-radius: 4px; padding: 2px 8px; margin-right: 6px; }
h1.page { font-size: 26px; margin-bottom: 20px; }
article h1 { font-size: 26px; margin-bottom: 6px; }
article .body { margin-top: 18px; }
article .body p { margin-bottom: 14px; color: #374151; }
article .body h3 { margin: 22px 0 10px; font-size: 18px; }
article .body ul { margin: 0 0 14px 22px; color: #374151; }
article .body code { background: #f1f3f4; border-radius: 4px; padding: 1px 6px; font-size: 13px;
       font-family: "SFMono-Regular", Consolas, monospace; }
footer.site { border-top: 1px solid #e8eaed; background: #fff; padding: 28px 0; text-align: center;
       color: #9aa0a6; font-size: 13px; }
footer.site a { color: #9aa0a6; text-decoration: none; }
footer.site a:hover { color: #1a73e8; }
@media (max-width: 600px) { nav a { margin-left: 14px; } .hero h1 { font-size: 26px; } }