* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, "Microsoft YaHei", sans-serif; color: #1f2937; background: #f5f6f8; }
a { color: inherit; text-decoration: none; }
.wrap { width: min(1080px, calc(100% - 32px)); margin: 0 auto; }
.topbar { background: #fff; border-bottom: 1px solid #e5e7eb; position: sticky; top: 0; z-index: 10; }
.nav { min-height: 66px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 800; }
.brand-mark { width: 38px; height: 38px; border-radius: 8px; display: grid; place-items: center; color: #fff; background: #f97316; }
.nav-actions { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; justify-content: flex-end; font-size: 14px; color: #4b5563; }
.hero { background: #0f766e; color: #fff; padding: 44px 0; }
.hero h1 { margin: 0 0 10px; font-size: 34px; line-height: 1.2; letter-spacing: 0; }
.hero p { margin: 0; max-width: 780px; line-height: 1.8; color: #ecfdf5; }
.main { padding: 28px 0 56px; display: grid; gap: 18px; }
.panel { background: #fff; border: 1px solid #e5e7eb; border-radius: 8px; padding: 22px; }
.panel h2 { margin: 0 0 12px; font-size: 22px; }
.panel h3 { margin: 20px 0 8px; font-size: 18px; }
.panel p, .panel li { line-height: 1.8; color: #374151; }
.meta-grid { display: grid; grid-template-columns: 170px 1fr; gap: 10px 18px; line-height: 1.8; }
.meta-grid b { color: #111827; }
.list { margin: 0; padding-left: 20px; }
.footer { border-top: 1px solid #e5e7eb; background: #fff; color: #6b7280; padding: 22px 0; text-align: center; line-height: 1.9; }
.footer a { color: inherit; margin: 0 8px; }
@media (max-width: 720px) {
    .nav { align-items: flex-start; flex-direction: column; padding: 14px 0; }
    .meta-grid { grid-template-columns: 1fr; }
}