.back-top{z-index:40;color:#dbc291;cursor:pointer;opacity:0;visibility:hidden;width:52px;height:52px;transition:opacity var(--transition), visibility var(--transition), transform var(--transition), border-color var(--transition), background var(--transition), color var(--transition);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#121212eb;border:1px solid #c9a86a59;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:0;display:inline-flex;position:fixed;bottom:28px;right:20px;transform:translateY(12px);box-shadow:0 8px 24px #00000059}@media (min-width:640px){.back-top{bottom:40px;right:32px}}.back-top:hover{color:#c9a86a;background:#c9a86a1f;border-color:#c9a86aa6}.back-top--visible{opacity:1;visibility:visible;transform:translateY(0)}.back-top__icon{width:18px;height:18px}.back-top__label{letter-spacing:.12em;font-size:10px;line-height:1}.effect-page main{padding:56px 0 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