.page-nav {
            position: fixed;
            right: 24px;
            top: 50%;
            transform: translateY(-50%);
            display: flex;
            flex-direction: column;
            gap: 15px;
            z-index: 9999;
            opacity: 0.75;
            transition: opacity 0.25s ease;
        }
        .page-nav:hover {
            opacity: 1;
        }
        .page-nav a {
            position: relative;
            display: flex;
            align-items: center;
            gap: 12px;
            text-decoration: none;
        }
        .page-nav a::before {
            content: "";
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: rgba(160,160,160,0.45);
            transition: transform 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
        }
        .page-nav a.active::before {
            background: #1693ff;
            transform: scale(1.18);
            box-shadow: 0 0 0 6px rgba(22,147,255,0.15);
        }
        .page-nav a.active span {
            color: #1693ff;
        }
        .page-nav a:hover::before {
            background: #1693ff;
            transform: scale(1.18);
        }
        .page-nav a::after {
            content: attr(data-title);
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background: rgba(20,20,20,0.92);
            color: #fff;
            padding: 7px 10px;
            border-radius: 8px;
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.2s ease;
        }
        @media (min-width: 981px) {
            .page-nav a::after {
                display: none;
            }
        }
        @media (max-width: 980px) {
            .page-nav {
                right: 14px;
                opacity: 1;
            }
            .page-nav a span {
                display: none;
            }
            .page-nav a::after {
                right: 100%;
                margin-right: 12px;
                display: block;
            }
            .page-nav a:hover::after {
                opacity: 1;
            }
        }