.yl-btn{cursor:pointer;white-space:nowrap;border:0;border-radius:12px;justify-content:center;align-items:center;gap:8px;padding:9px 16px;font-family:inherit;font-size:13px;font-weight:600;line-height:1.2;display:inline-flex}.yl-btn:hover{text-decoration:none}.yl-btn-ghost{border:1px solid var(--color-border);color:var(--color-fg);background:0 0;padding:8px 14px}.yl-btn-card{background:var(--color-card);border:1px solid var(--color-border);color:var(--color-fg)}.yl-btn-ghost:hover,.yl-btn-card:hover{border-color:color-mix(in oklab, var(--color-fg) 30%, var(--color-border))}.yl-btn-accent{background:var(--color-accent);color:var(--color-accent-fg)}.yl-btn-accent:hover{filter:brightness(1.08)}.yl-btn-lg{border-radius:12px;padding:14px 26px;font-size:15px}
.yl-header{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:color-mix(in oklab, var(--color-bg) 88%, transparent);border-bottom:1px solid var(--color-border);z-index:50;transition:background-color .3s;position:sticky;top:0}.yl-header-inner{align-items:center;gap:12px;max-width:1160px;height:64px;margin:0 auto;padding:0 28px;display:flex}.yl-header-logo{color:inherit;text-decoration:none;display:inline-flex}.yl-nav{gap:18px;margin-left:26px;font-size:13.5px;display:flex}.yl-nav a{color:var(--color-muted)}.yl-nav a:hover{text-decoration:underline}.yl-nav a[aria-current=page]{color:var(--color-fg);font-weight:700}.yl-header-actions{align-items:center;gap:10px;margin-left:auto;display:flex}@media (max-width:720px){.yl-nav{display:none}.yl-header-inner{padding:0 18px}}@media (max-width:540px){.yl-login-btn{display:none}}