body {
            font-family: 'Urbanist', sans-serif;
        }
        .fluid-bg {
            background: radial-gradient(circle at 50% 50%, rgba(191, 43, 55, 0.08) 0%, transparent 50%),
                        radial-gradient(circle at 0% 0%, rgba(191, 43, 55, 0.05) 0%, transparent 30%);
        }
        .prose h2 {
            font-weight: 700;
            font-size: 1.875rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: #1e293b;
        }
        .prose p {
            margin-bottom: 1.25rem;
            line-height: 1.75;
            color: #475569;
        }
        .prose a {
            color: #bf2b37;
            font-weight: 700;
            text-decoration: underline;
            text-decoration-color: rgba(191, 43, 55, 0.35);
            text-underline-offset: 0.18em;
            transition: color 0.2s ease, text-decoration-color 0.2s ease;
        }
        .prose a:hover {
            color: #9f1f2b;
            text-decoration-color: rgba(191, 43, 55, 0.8);
        }
        .sticky-sidebar {
            position: sticky;
            top: 6rem;
        }
        .hover-glow:hover {
            box-shadow: 0 0 20px rgba(191, 43, 55, 0.3);
            transform: translateY(-2px);
            transition: all 0.2s ease-in-out;
        }

        .blog-toc-control {
            position: relative;
            z-index: 20;
            display: flex;
            justify-content: flex-start;
            margin-bottom: 2rem;
        }

        .blog-toc-trigger {
            display: inline-flex;
            align-items: center;
            gap: 0.7rem;
            min-height: 3.25rem;
            border: 1px solid rgba(15, 23, 42, 0.1);
            border-radius: 1.1rem;
            background: #0f172a;
            color: #ffffff;
            padding: 0.75rem 1rem;
            font-weight: 900;
            line-height: 1;
            box-shadow: 0 18px 40px rgba(15, 23, 42, 0.16);
            transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .blog-toc-trigger:hover {
            transform: translateY(-1px);
            border-color: rgba(191, 43, 55, 0.45);
            box-shadow: 0 22px 46px rgba(15, 23, 42, 0.2);
        }

        .blog-toc-trigger .material-symbols-outlined {
            color: #bf2b37;
            font-size: 1.25rem;
        }

        .blog-toc-trigger small {
            display: inline-flex;
            align-items: center;
            border-radius: 999px;
            background: rgba(191, 43, 55, 0.16);
            color: #fecdd3;
            padding: 0.35rem 0.55rem;
            font-size: 0.7rem;
            font-weight: 800;
            white-space: nowrap;
        }

        .blog-toc-modal.hidden {
            display: none !important;
        }

        .blog-toc-modal {
            position: fixed;
            inset: 0;
            z-index: 120;
            display: none;
            align-items: center;
            justify-content: center;
            padding: 1rem;
            background: rgba(2, 6, 23, 0.68);
            backdrop-filter: blur(14px);
        }

        .blog-toc-modal.is-open {
            display: flex;
        }

        .blog-toc-modal__panel {
            width: min(92vw, 520px);
            max-height: min(78vh, 640px);
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 1.6rem;
            background: linear-gradient(145deg, rgba(15, 23, 42, 0.98), rgba(2, 6, 23, 0.98));
            color: #ffffff;
            box-shadow: 0 30px 80px rgba(2, 6, 23, 0.55);
        }

        .blog-toc-modal__head {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.25rem 1.25rem 1rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .blog-toc-modal__head p {
            margin: 0 0 0.35rem;
            color: #bf2b37;
            font-size: 0.72rem;
            font-weight: 900;
            letter-spacing: 0.16em;
            text-transform: uppercase;
        }

        .blog-toc-modal__head h3 {
            margin: 0;
            color: #ffffff;
            font-size: 1.35rem;
            font-weight: 950;
        }

        .blog-toc-modal__close {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 2.6rem;
            height: 2.6rem;
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
            color: #ffffff;
        }

        .blog-toc-modal__list {
            display: grid;
            gap: 0.7rem;
            max-height: calc(min(78vh, 640px) - 6rem);
            overflow-y: auto;
            padding: 1rem;
        }

        .blog-toc-modal__list > a {
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 1rem;
            background: rgba(255, 255, 255, 0.055);
            padding: 0.9rem 1rem;
            text-decoration: none;
            transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
        }

        .blog-toc-modal__list > a:hover,
        .blog-toc-modal__list > a.is-active {
            transform: translateY(-1px);
            border-color: rgba(191, 43, 55, 0.45);
            background: rgba(191, 43, 55, 0.14);
        }

        .blog-toc-modal__list span {
            color: #ffffff;
            font-size: 0.95rem;
            font-weight: 850;
            line-height: 1.3;
        }

        .blog-toc-modal__list small {
            color: #94a3b8;
            font-size: 0.74rem;
            font-weight: 700;
        }

        @media (max-width: 767px) {
            .blog-toc-control {
                margin-bottom: 1.35rem;
            }

            .blog-toc-trigger {
                width: 100%;
                justify-content: space-between;
                border-radius: 1rem;
            }

            .blog-toc-modal {
                align-items: flex-end;
                padding: 0.75rem;
            }

            .blog-toc-modal__panel {
                width: 100%;
                max-height: 76vh;
                border-radius: 1.35rem;
            }
        }