* { box-sizing: border-box; }
body { margin: 0; font-family: "Microsoft YaHei", "PingFang SC", sans-serif; background: #0f0f12; color: #e4e4e7; line-height: 1.6; }
a { color: #3b82f6; text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 960px; margin: 0 auto; padding: 0 20px; }

.site-header { background: #18181b; border-bottom: 1px solid #27272a; padding: 12px 0; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 1.25rem; font-weight: 700; color: #fff; }
.nav { display: flex; align-items: center; gap: 20px; }
.nav a { color: #a1a1aa; }
.nav a:hover { color: #fff; }
.btn-admin { padding: 6px 12px; background: #27272a; color: #fff; border-radius: 6px; }
.btn-admin:hover { background: #3f3f46; text-decoration: none; }

.hero { padding: 60px 0; text-align: center; }
.hero h1 { font-size: 2rem; margin: 0 0 16px; color: #fff; }
.hero-desc { color: #a1a1aa; margin: 0 0 24px; max-width: 480px; margin-left: auto; margin-right: auto; }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-block; padding: 12px 24px; border-radius: 8px; font-size: 1rem; }
.btn-primary { background: #3b82f6; color: #fff; border: none; }
.btn-primary:hover { background: #2563eb; text-decoration: none; }
.btn-outline { background: transparent; color: #3b82f6; border: 1px solid #3b82f6; }
.btn-outline:hover { background: rgba(59,130,246,0.1); text-decoration: none; }

.section { padding: 40px 0; }
.section h2 { font-size: 1.5rem; margin: 0 0 16px; color: #fff; }
.section-alt { background: #18181b; }
.features { margin: 0; padding-left: 1.25rem; color: #a1a1aa; }
.features li { margin-bottom: 8px; }

.site-footer { border-top: 1px solid #27272a; padding: 24px 0; text-align: center; color: #71717a; font-size: 14px; }
.site-footer a { color: #71717a; }