:root{--ds-bg: #fff;--ds-fg: #172033;--ds-muted: #667085;--ds-card: #f7f8fa;--ds-border: #e5e7eb;--ds-accent: #4f46e5;--van-primary-color: #4f46e5}*{box-sizing:border-box}html,body,#app{margin:0;min-height:100%;background:var(--ds-bg);color:var(--ds-fg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Arial,sans-serif;line-height:1.7}a{color:var(--ds-accent)}.page{max-width:900px;margin:0 auto;padding:16px 16px 48px}.page--narrow{max-width:640px}.brand{display:inline-flex;align-items:center;margin:8px 0 20px}.brand img{height:36px;width:auto;display:block}.doc h1{font-size:28px;line-height:1.25;margin:0 0 8px}.doc h2{font-size:20px;margin:28px 0 10px}.doc h3{font-size:16px;margin:18px 0 8px}.doc .meta{color:var(--ds-muted);margin-bottom:20px}.doc .card{background:var(--ds-card);border:1px solid var(--ds-border);border-radius:12px;padding:14px 16px;margin:16px 0}.doc ul{padding-left:1.2em}.page-footer{border-top:1px solid var(--ds-border);margin-top:40px;padding-top:20px;color:var(--ds-muted);font-size:14px}