.syl-body h3.syl-part {
        font-size: 1.35rem;
        font-weight: 800;
        letter-spacing: -0.02em;
        margin: 46px 0 16px;
        padding-bottom: 10px;
        border-bottom: 3px solid transparent;
        border-image: linear-gradient(90deg, #2563eb, #7c3aed 40%, transparent) 1;
    }

    .syl-body h4.syl-paper, .syl-acc-body h4.syl-paper {
        font-size: 1rem;
        font-weight: 800;
        color: #1d4ed8;
        background: #eff6ff;
        border-left: 4px solid #2563eb;
        border-radius: 0 10px 10px 0;
        padding: 10px 14px;
        margin: 28px 0 12px;
    }

    .syl-body h4.syl-sub, .syl-acc-body h4.syl-sub {
        font-size: 0.85rem;
        font-weight: 800;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: #64748b;
        margin: 26px 0 10px;
    }

    .syl-body p, .syl-acc-body p { margin: 0 0 6px; line-height: 1.62; }

    .syl-topic {
        font-weight: 700;
        color: #0f172a;
        margin: 18px 0 8px !important;
    }

    ul.syl-list {
        list-style: none;
        margin: 4px 0 14px;
        padding: 0;
    }

    ul.syl-list li {
        position: relative;
        padding: 3px 0 3px 26px;
        line-height: 1.62;
    }

    ul.syl-list li::before {
        content: '';
        position: absolute;
        left: 6px;
        top: 0.95em;
        width: 8px;
        height: 8px;
        border-radius: 3px;
        background: linear-gradient(135deg, #2563eb, #7c3aed);
    }

    .syl-notice {
        background: #fffbeb;
        border: 1px solid #fde68a;
        border-radius: 10px;
        padding: 10px 14px;
        color: #78350f;
        font-size: 0.95rem;
        margin: 10px 0 12px !important;
    }

    .syl-acc {
        border: 1px solid #e2e8f0;
        border-radius: 14px;
        background: #fff;
        margin-bottom: 10px;
        overflow: hidden;
        transition: box-shadow 0.15s ease;
    }

    .syl-acc:hover { box-shadow: 0 4px 16px rgba(15, 23, 42, 0.07); }

    .syl-acc summary {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 10px;
        cursor: pointer;
        list-style: none;
        padding: 15px 18px;
        font-weight: 700;
        color: #0f172a;
        background: #f8fafc;
        transition: background 0.15s ease;
    }

    .syl-acc summary:hover { background: #eff6ff; }
    .syl-acc summary::-webkit-details-marker { display: none; }

    .syl-acc summary::after {
        content: '';
        flex: 0 0 auto;
        width: 9px;
        height: 9px;
        border-right: 2.5px solid #2563eb;
        border-bottom: 2.5px solid #2563eb;
        transform: rotate(45deg);
        transition: transform 0.18s ease;
        margin-right: 4px;
    }

    .syl-acc[open] summary { border-bottom: 1px solid #e2e8f0; background: #eff6ff; }
    .syl-acc[open] summary::after { transform: rotate(-135deg); }

    .syl-acc-body { padding: 16px 18px 12px; }
    .syl-acc-body h4.syl-paper { margin: 18px 0 10px; }
    .syl-acc-body p { font-size: 0.94rem; line-height: 1.68; }

    .syl-open-note { font-size: 0.9rem; color: #64748b; margin: 0 0 14px; }

.syl-linkgrid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 8px;
    margin: 0 0 18px;
}

.syl-linkgrid a {
    font-size: 0.88rem;
    font-weight: 700;
    color: #1d4ed8;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 9px 12px;
    text-decoration: none;
    transition: background 0.14s ease, border-color 0.14s ease;
}

.syl-linkgrid a:hover { background: #eff6ff; border-color: #bfdbfe; }

.syl-pagelink {
    margin: 0 0 12px !important;
    font-size: 0.88rem;
}

.syl-pagelink a { font-weight: 800; color: #2563eb; }

/* ── readability: body text darker + medium weight (owner: too thin) ── */
.syl-body p, .syl-acc-body p, ul.syl-list li {
    color: #1f2937;
    font-weight: 500;
}

.syl-body { font-size: 0.97rem; }

/* ── hierarchy: Section marker > lettered heading > indented items ── */
h5.syl-section {
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #7c3aed;
    margin: 26px 0 10px;
}

h5.syl-letter {
    font-size: 1rem;
    font-weight: 800;
    color: #0f172a;
    margin: 20px 0 8px;
}

.syl-acc-body h5.syl-section { margin: 20px 0 8px; }
.syl-acc-body h5.syl-letter { margin: 16px 0 6px; font-size: 1.02rem; }

p.syl-item {
    margin: 0 0 4px 1.35em !important;
    line-height: 1.6;
    position: relative;
}

.syl-topic { font-weight: 800; }

p.syl-numhead {
    font-weight: 700;
    color: #0f172a;
    margin: 14px 0 6px !important;
}