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svg{width:18px;height:18px}.help-panel-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:calc(var(--z-modal, 400) + 120);background:#00000059;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.help-panel{position:fixed;top:64px;right:20px;width:min(460px,calc(100vw - 32px));max-height:calc(100vh - 84px);z-index:calc(var(--z-modal, 400) + 130);background:var(--bg-overlay, #1a1a1a);border:1px solid var(--border-default, rgba(255, 255, 255, .1));border-radius:12px;box-shadow:var(--shadow-panel);display:flex;flex-direction:column;overflow:hidden}.help-panel-head{height:42px;display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 12px 0;flex-shrink:0}.help-panel-title{font-size:13px;font-weight:var(--fw-semibold, 600);color:var(--text-primary, #fafafa)}.help-panel-close{width:28px;height:28px;border:1px solid var(--border-subtle, rgba(255, 255, 255, .08));border-radius:8px;background:var(--btn-ghost, rgba(255, 255, 255, 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170px)}.num-header-actions.is-mobile::-webkit-scrollbar{display:none}.num-header-controls{display:flex;align-items:center;gap:12px;overflow:visible}.num-header-controls.is-mobile{gap:8px;flex-shrink:0}.num-header-nav{display:flex;gap:24px;margin-right:12px}.num-header-nav-link{color:var(--text-dimmed);text-decoration:none;font-size:var(--text-body-size);font-weight:var(--fw-regular);transition:color var(--duration-fast) var(--ease-default)}.num-header-nav-link:hover{color:var(--text-primary)}.num-header-theme-btn{background:transparent;border:none;border-radius:var(--radius-lg);padding:8px;width:36px;height:36px;color:var(--text-muted-nav);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:color var(--duration-fast) var(--ease-default),background-color var(--duration-fast) var(--ease-default);font-family:var(--font-sans)}.num-header-theme-btn.is-mobile{padding:6px;width:32px;height:32px}.num-header-theme-btn:hover{background:var(--bg-overlay-white-5);color:var(--text-primary)}.num-header-cta{background-image:var(--gradient-btn-white);border:none;border-radius:var(--radius-lg);padding:0 16px;height:42px;color:#000;font-size:var(--text-body-size);font-weight:var(--fw-semibold);cursor:pointer;transition:transform var(--duration-fast) var(--ease-default),box-shadow var(--duration-fast) var(--ease-default);box-shadow:var(--shadow-xs);font-family:var(--font-sans);display:inline-flex;align-items:center}.num-header-cta:hover{transform:translateY(-1px);box-shadow:var(--shadow-sm)}.num-header-nav-btn{background:transparent;border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:0 14px;height:36px;color:var(--text-dimmed);font-size:var(--text-body-size);cursor:pointer;font-family:var(--font-sans);transition:color var(--duration-fast) var(--ease-default),background-color var(--duration-fast) var(--ease-default);display:inline-flex;align-items:center}.num-header-nav-btn:hover{background:var(--bg-overlay-white-5);color:var(--text-primary)}.num-header-hamburger{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:4px;display:none}.num-header-drawer{padding:16px 24px 24px;border-top:1px solid var(--border-subtle);display:flex;flex-direction:column;gap:16px}.num-header-drawer-link{color:var(--text-primary);text-decoration:none;font-size:16px;font-weight:var(--fw-medium)}.num-header-drawer-link:hover{color:var(--accent-orange)}.num-header-drawer-cta{background-image:var(--gradient-btn-white);border:none;border-radius:var(--radius-lg);padding:12px 24px;color:#000;font-size:15px;font-weight:var(--fw-semibold);cursor:pointer;text-align:center;font-family:var(--font-sans)}[data-theme=light] .num-header-cta,[data-theme=light] 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