.features-page {
            font-family: "Noto Sans KR", "Apple SD Gothic Neo", "Segoe UI", sans-serif;
            --feature-ink: #0f172a;
            --feature-sub: #64748b;
            --feature-panel: rgba(255, 255, 255, 0.9);
            --feature-line: rgba(15, 23, 42, 0.08);
            --feature-accent: var(--primary-500);
            --feature-accent-2: var(--accent-500);
            --feature-shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
        }
        [data-theme="dark"] .features-page {
            --feature-ink: #e2e8f0;
            --feature-sub: #94a3b8;
            --feature-panel: rgba(15, 23, 42, 0.75);
            --feature-line: rgba(148, 163, 184, 0.18);
            --feature-shadow: 0 24px 60px rgba(15, 23, 42, 0.35);
        }
        .features-page h1,
        .features-page h2,
        .features-page h3,
        .features-page h4,
        .features-page h5,
        .features-page h6 {
            font-family: "Space Grotesk", "Noto Sans KR", sans-serif;
            letter-spacing: -0.02em;
        }
        .setup-section {
            position: relative;
            background: transparent;
        }
        [data-theme="dark"] .setup-section {
            background: transparent;
        }
        .setup-rail {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 1rem;
            padding: 1.5rem;
            border-radius: 1.5rem;
            background: var(--feature-panel);
            border: 1px solid var(--feature-line);
            box-shadow: var(--feature-shadow);
        }
        .setup-rail .rail-step {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 600;
            color: var(--feature-ink);
        }
        .rail-step .rail-num {
            width: 2rem;
            height: 2rem;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--feature-accent), var(--feature-accent-2));
            color: #fff;
            font-size: 0.85rem;
        }
        .setup-card {
            position: relative;
            height: 100%;
            padding: 1.75rem;
            border-radius: 1.25rem;
            background: var(--feature-panel);
            border: 1px solid var(--feature-line);
            box-shadow: var(--feature-shadow);
            overflow: hidden;
        }
        .setup-card::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(107, 115, 255, 0.12), transparent 35%);
            opacity: 0;
            transition: opacity 0.3s ease;
            pointer-events: none;
        }
        .setup-card:hover::after {
            opacity: 1;
        }
        .setup-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 1rem;
        }
        .setup-title {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 700;
            color: var(--feature-ink);
        }
        .setup-badge {
            padding: 0.3rem 0.75rem;
            border-radius: 999px;
            font-size: 0.75rem;
            font-weight: 700;
            background: rgba(18, 180, 167, 0.16);
            color: var(--feature-accent-2);
        }
        .setup-path {
            display: inline-flex;
            flex-wrap: wrap;
            gap: 0.5rem;
            padding: 0.65rem 0.85rem;
            border-radius: 0.85rem;
            background: rgba(15, 23, 42, 0.04);
            border: 1px dashed var(--feature-line);
            color: var(--feature-ink);
            font-size: 0.85rem;
        }
        [data-theme="dark"] .setup-path {
            background: rgba(148, 163, 184, 0.08);
        }
        .setup-steps {
            list-style: none;
            padding: 0;
            margin: 1rem 0 0;
            display: grid;
            gap: 0.6rem;
        }
        .setup-steps li {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            font-size: 0.9rem;
            color: var(--feature-ink);
        }
        .setup-steps .step-num {
            width: 1.6rem;
            height: 1.6rem;
            border-radius: 0.5rem;
            background: rgba(107, 115, 255, 0.18);
            color: var(--primary-600);
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
        }
        .setup-tip {
            margin-top: 1rem;
            padding: 0.85rem 1rem;
            border-radius: 0.85rem;
            background: rgba(18, 180, 167, 0.1);
            color: var(--feature-sub);
            font-size: 0.85rem;
        }
        .permission-card {
            padding: 1.5rem;
            border-radius: 1.25rem;
            background: rgba(255, 255, 255, 0.75);
            border: 1px solid var(--feature-line);
            box-shadow: var(--feature-shadow);
        }
        [data-theme="dark"] .permission-card {
            background: rgba(15, 23, 42, 0.85);
        }
        .permission-list {
            display: grid;
            gap: 0.6rem;
            color: var(--feature-ink);
            font-size: 0.9rem;
        }
        .cmd-card {
            padding: 1.6rem;
            border-radius: 1.25rem;
            background: var(--feature-panel);
            border: 1px solid var(--feature-line);
            box-shadow: var(--feature-shadow);
        }
        .cmd-chip {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.3rem 0.7rem;
            border-radius: 999px;
            background: rgba(107, 115, 255, 0.12);
            color: var(--primary-600);
            font-weight: 600;
            font-size: 0.8rem;
        }
        .cmd-list {
            list-style: none;
            padding: 0;
            margin: 0.9rem 0 0;
            display: grid;
            gap: 0.55rem;
            color: var(--feature-ink);
            font-size: 0.9rem;
        }
        .cmd-list li {
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .cmd-dot {
            width: 0.6rem;
            height: 0.6rem;
            border-radius: 50%;
            background: var(--accent-500);
        }
        .setup-note {
            margin-top: 1.5rem;
            padding: 1rem 1.2rem;
            border-radius: 1rem;
            background: rgba(15, 23, 42, 0.04);
            color: var(--feature-sub);
            border: 1px solid var(--feature-line);
        }