.fixed-page-header{position:fixed;top:0;left:50%;transform:translateX(-50%);width:100%;max-width:600px;display:flex;align-items:center;justify-content:space-between;height:56px;padding:0 24px;background:#1d1f28;border-bottom:1px solid var(--highlight);z-index:100}.fixed-page-header__left{display:flex;align-items:center;gap:8px}.fixed-page-header__back{display:flex;align-items:center;justify-content:center;padding:4px}.fixed-page-header__title{font-size:20px;font-weight:700;color:#fff}.fixed-page-header__right{display:flex;align-items:center;gap:12px}