/* -- Page layout -- */
      .syllabus-page {
        padding: 44px 0 96px;
      }
      .syllabus-page h1 {
        font-size: 2rem;
        font-weight: 800;
        color: var(--text-blue);
        margin-bottom: 8px;
      }
      .syllabus-subtitle {
        font-size: 15px;
        color: var(--black-07);
        margin-bottom: 30px;
      }

      /* -- Hero banner -- */
      .syl-hero {
        text-align: center;
        padding: 36px 0 16px;
      }
      .syl-hero__icon {
        width: 56px;
        height: 56px;
        margin: 0 auto 18px;
        background: linear-gradient(135deg, #f09a0f 0%, #e72c83 100%);
        border-radius: 14px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 24px;
        color: #fff;
        box-shadow: 0 6px 20px rgba(240, 154, 15, 0.25);
      }
      .syl-hero h1 {
        color: var(--text-blue);
        font-size: clamp(1.6rem, 4vw, 2.1rem);
        font-weight: 800;
        margin-bottom: 8px;
        letter-spacing: -0.02em;
      }
      .syl-hero h1 span {
        background: linear-gradient(90deg, #f09a0f, #e72c83);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
      }
      .syl-hero__divider {
        width: 50px;
        height: 3px;
        background: linear-gradient(90deg, #f09a0f, #e72c83);
        border-radius: 2px;
        margin: 12px auto 16px;
        opacity: 0.6;
      }
      .syl-hero__subtitle {
        color: var(--black);
        opacity: 0.7;
        font-size: 1rem;
        max-width: 540px;
        line-height: 1.65;
        margin: 0 auto 24px;
      }
      .syl-hero__cta {
        margin-bottom: 12px;
      }
      .syl-hero__cta-btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 12px 28px;
        background: linear-gradient(135deg, #f09a0f 0%, #e67e22 100%);
        color: #fff;
        font-size: 0.95rem;
        font-weight: 600;
        border-radius: 50px;
        text-decoration: none;
        box-shadow: 0 4px 14px rgba(240, 154, 15, 0.3);
        transition: transform 0.2s, box-shadow 0.2s;
      }
      .syl-hero__cta-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(240, 154, 15, 0.4);
        color: #fff;
        text-decoration: none;
      }
      .syl-hero__levels {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 32px;
        flex-wrap: wrap;
      }
      .syl-hero__level {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 0.9rem;
        color: var(--black);
        opacity: 0.8;
      }
      .syl-hero__level i {
        width: 32px;
        height: 32px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 10px;
        font-size: 14px;
      }
      .syl-hero__level.beginner i {
        background: rgba(34, 197, 94, 0.12);
        color: #22c55e;
      }
      .syl-hero__level.intermediate i {
        background: rgba(59, 130, 246, 0.12);
        color: #3b82f6;
      }
      .syl-hero__level.advanced i {
        background: rgba(139, 92, 246, 0.12);
        color: #8b5cf6;
      }

      /* -- Controls -- */
      .syllabus-controls {
        display: flex;
        gap: 10px;
        flex-wrap: wrap;
        margin-bottom: 30px;
      }
      .syllabus-controls .btn-syl {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 9px 18px;
        border-radius: 999px;
        font-size: 14px;
        font-weight: 600;
        cursor: pointer;
        border: 1px solid rgba(37, 38, 94, 0.2);
        background: var(--white);
        color: var(--text-blue);
        transition: all 0.18s;
      }
      .syllabus-controls .btn-syl:hover,
      .syllabus-controls .btn-syl:focus {
        background: var(--text-blue);
        border-color: var(--text-blue);
        color: #fff;
        outline: none;
      }
      .syllabus-controls .btn-syl[aria-pressed="true"] {
        background: var(--text-blue);
        border-color: var(--text-blue);
        color: #fff;
      }
      .syl-priority-controls {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        margin: 0 0 18px;
      }
      .syl-priority-controls__label {
        width: 100%;
        color: var(--text-blue);
        font-size: 0.85rem;
        font-weight: 700;
        margin-bottom: 2px;
      }
      .syl-priority-btn {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 8px 13px;
        border: 1px solid var(--black-01);
        border-radius: 999px;
        background: var(--white);
        color: var(--text-blue);
        cursor: pointer;
        font-size: 0.8rem;
        font-weight: 700;
        transition: background 0.18s, border-color 0.18s, color 0.18s;
      }
      .syl-priority-btn::before {
        content: "";
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: #64748b;
      }
      .syl-priority-btn[data-priority-filter="must"]::before { background: #2563eb; }
      .syl-priority-btn[data-priority-filter="good"]::before { background: #d97706; }
      .syl-priority-btn[data-priority-filter="advanced"]::before { background: #dc2626; }
      .syl-priority-btn:hover,
      .syl-priority-btn:focus,
      .syl-priority-btn[aria-pressed="true"] {
        background: var(--text-blue);
        border-color: var(--text-blue);
        color: #fff;
        outline: none;
      }
      .syl-priority-summary {
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 10px;
        margin: 0 0 28px;
      }
      .syl-priority-summary__item {
        padding: 12px 14px;
        border: 1px solid var(--black-01);
        border-radius: 10px;
        background: var(--white);
      }
      .syl-priority-summary__item > strong,
      .syl-priority-summary__item > span {
        display: block;
      }
      .syl-priority-summary__item strong {
        color: var(--text-blue);
        font-size: 0.82rem;
      }
      .syl-priority-summary__item > span {
        color: var(--black-07);
        font-size: 0.78rem;
        margin-top: 3px;
      }
      .syl-priority-summary__item > span > span {
        display: inline;
      }
      .syl-priority-badge {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        padding: 3px 8px;
        border-radius: 999px;
        font-size: 0.68rem;
        font-weight: 800;
        letter-spacing: 0.02em;
        white-space: nowrap;
      }
      .syl-priority-badge::before {
        content: "";
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: currentColor;
      }
      .syl-priority-badge--must {
        color: #1d4ed8;
        background: #dbeafe;
      }
      .syl-priority-badge--good {
        color: #92400e;
        background: #fef3c7;
      }
      .syl-priority-badge--advanced {
        color: #b91c1c;
        background: #fee2e2;
      }
      .priority-hidden {
        display: none !important;
      }
      .syl-topic-group-heading.priority-hidden {
        display: none !important;
      }
      [data-theme="dark"] .syl-priority-summary__item,
      [data-theme="dark"] .syl-priority-btn {
        background: rgba(255, 255, 255, 0.04);
        border-color: rgba(255, 255, 255, 0.12);
      }
      [data-theme="dark"] .syl-priority-summary__item span {
        color: rgba(255, 255, 255, 0.65);
      }
      [data-theme="dark"] .syl-priority-badge--must { color: #bfdbfe; background: rgba(37, 99, 235, 0.25); }
      [data-theme="dark"] .syl-priority-badge--good { color: #fde68a; background: rgba(217, 119, 6, 0.25); }
      [data-theme="dark"] .syl-priority-badge--advanced { color: #fecaca; background: rgba(220, 38, 38, 0.25); }
      body.dark-theme .syl-priority-summary__item,
      body.dark-theme .syl-priority-btn {
        background: rgba(255, 255, 255, 0.04);
        border-color: rgba(255, 255, 255, 0.12);
      }
      body.dark-theme .syl-priority-summary__item span {
        color: rgba(255, 255, 255, 0.65);
      }
      body.dark-theme .syl-priority-badge--must { color: #bfdbfe; background: rgba(37, 99, 235, 0.25); }
      body.dark-theme .syl-priority-badge--good { color: #fde68a; background: rgba(217, 119, 6, 0.25); }
      body.dark-theme .syl-priority-badge--advanced { color: #fecaca; background: rgba(220, 38, 38, 0.25); }

      /* -- Main section wrapper -- */
      .syl-section {
        border: 1px solid var(--black-01);
        border-radius: 12px;
        margin-bottom: 16px;
        overflow: hidden;
        background: var(--white);
        transition: box-shadow 0.22s, border-color 0.22s;
      }
      .syl-section:hover {
        box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
        border-color: rgba(37, 38, 94, 0.2);
      }

      /* -- Section header (h2 level) -- */
      .syl-section-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 15px 20px;
        cursor: pointer;
        user-select: none;
        background: transparent;
        border: none;
        width: 100%;
        text-align: left;
        transition: background 0.18s;
      }
      .syl-section-header:hover,
      .syl-section-header:focus {
        background: rgba(240, 154, 15, 0.07);
        outline: none;
      }
      .syl-section-header h2 {
        font-size: 1rem;
        font-weight: 700;
        color: var(--text-blue);
        margin: 0;
        display: flex;
        align-items: center;
        gap: 10px;
      }
      .syl-section-header h2 .syl-badge {
        font-size: 11px;
        font-weight: 600;
        padding: 2px 8px;
        border-radius: 20px;
        background: rgba(240, 154, 15, 0.12);
        color: var(--pri-yellow);
        white-space: nowrap;
      }
      .syl-section-header h2 .syl-badge:not(.syl-badge--intermediate):not(.syl-badge--advanced) {
        background: #d1fae5;
        color: #065f46;
      }
      .syl-section-header h2 .syl-badge--intermediate {
        background: #dbeafe;
        color: #1e3a8a;
      }
      .syl-section-header h2 .syl-badge--advanced {
        background: #ede9fe;
        color: #4c1d95;
      }
      .syl-chevron {
        font-size: 12px;
        color: var(--black-07);
        transition: transform 0.22s ease;
        flex-shrink: 0;
      }
      .syl-section-header[aria-expanded="true"] .syl-chevron {
        transform: rotate(90deg);
      }

      /* -- Collapsible body -- */
      .syl-body {
        padding: 2px 20px 18px;
        border-top: 1px solid var(--black-01);
      }

      /* -- Subsection (h3) -- */
      .syl-body h3 {
        font-size: 0.88rem;
        font-weight: 700;
        color: var(--text-blue);
        margin: 18px 0 8px;
        text-transform: uppercase;
        letter-spacing: 0.04em;
      }

      /* -- Topic list -- */
      .syl-body ul {
        list-style: none;
        padding: 0;
        margin: 0 0 4px 0;
      }
      .syl-body ul li {
        font-size: 14px;
        color: var(--black-07);
        padding: 4px 0 4px 18px;
        position: relative;
        line-height: 1.6;
      }
      .syl-body ul li::before {
        content: "";
        position: absolute;
        left: 6px;
        top: 11px;
        width: 5px;
        height: 5px;
        border-radius: 50%;
        background: var(--pri-yellow);
      }
      .syl-body ul li a {
        color: #1a56db;
        text-decoration: underline;
        text-decoration-color: rgba(26, 86, 219, 0.35);
        text-underline-offset: 2px;
        transition: color 0.15s, text-decoration-color 0.15s;
      }

      .syl-body ul li a:hover {
        color: var(--pri-yellow);
        text-decoration-color: var(--pri-yellow);
      }
      /* Nested sub-list */
      .syl-body ul ul {
        margin: 2px 0 2px 12px;
      }
      .syl-body ul ul li::before {
        width: 4px;
        height: 4px;
        background: var(--black-07);
        opacity: 0.45;
      }

      /* Dark theme */
      [data-theme="dark"] .syl-section {
        border-color: rgba(255, 255, 255, 0.12);
        background: #131320;
      }
      [data-theme="dark"] .syl-section:hover {
        box-shadow: 0 10px 35px rgba(0, 0, 0, 0.35);
        border-color: rgba(147, 197, 253, 0.4);
      }
      [data-theme="dark"] .syl-section-header {
        background: transparent;
      }
      [data-theme="dark"] .syl-section-header:hover,
      [data-theme="dark"] .syl-section-header:focus {
        background: rgba(240, 154, 15, 0.1);
      }
      [data-theme="dark"] .syl-section-header h2 {
        color: var(--white);
      }
      [data-theme="dark"] .syl-section-header h2 .syl-badge:not(.syl-badge--intermediate):not(.syl-badge--advanced) {
        background: #064e3b;
        color: #6ee7b7;
      }
      [data-theme="dark"] .syl-section-header h2 .syl-badge--intermediate {
        background: #1e3a8a;
        color: #93c5fd;
      }
      [data-theme="dark"] .syl-section-header h2 .syl-badge--advanced {
        background: #4c1d95;
        color: #c4b5fd;
      }
      [data-theme="dark"] .syl-body {
        border-top-color: rgba(255, 255, 255, 0.1);
      }
      [data-theme="dark"] .syl-body h3 {
        color: var(--white);
      }
      [data-theme="dark"] .syl-body ul li {
        color: rgba(255, 255, 255, 0.75);
      }
      [data-theme="dark"] .syl-body ul li a {
        color: var(--pri-yellow);
        border-bottom-color: rgba(240, 154, 15, 0.35);
      }
      [data-theme="dark"] .syl-body ul li a:hover {
        color: var(--white);
        border-bottom-color: var(--white);
      }
      [data-theme="dark"] .syllabus-page h1 {
        color: var(--white);
      }
      [data-theme="dark"] .syllabus-controls .btn-syl {
        background: rgba(255, 255, 255, 0.05);
        border-color: rgba(147, 197, 253, 0.35);
        color: #bfdbfe;
      }
      [data-theme="dark"] .syl-hero__level {
        opacity: 0.85;
      }
      [data-theme="dark"] .syl-hero__level.beginner i {
        background: rgba(34, 197, 94, 0.2);
      }
      [data-theme="dark"] .syl-hero__level.intermediate i {
        background: rgba(59, 130, 246, 0.2);
      }
      [data-theme="dark"] .syl-hero__level.advanced i {
        background: rgba(139, 92, 246, 0.2);
      }
      [data-theme="dark"] .syl-hero h1 {
        color: var(--white);
      }
      [data-theme="dark"] .syl-hero__subtitle {
        color: rgba(255, 255, 255, 0.75);
      }
      body.dark-theme .syl-hero__level { opacity: 0.85; }
      body.dark-theme .syl-hero__level.beginner i { background: rgba(34, 197, 94, 0.2); }
      body.dark-theme .syl-hero__level.intermediate i { background: rgba(59, 130, 246, 0.2); }
      body.dark-theme .syl-hero__level.advanced i { background: rgba(139, 92, 246, 0.2); }
      body.dark-theme .syl-hero__subtitle { color: rgba(255, 255, 255, 0.75); }

      /* Responsive tweaks */
      @media (max-width: 576px) {
        .syl-hero {
          padding: 28px 0 12px;
        }
        .syl-hero__icon {
          width: 48px;
          height: 48px;
          font-size: 20px;
        }
        .syl-hero h1 {
          font-size: 1.4rem;
        }
        .syl-hero__subtitle {
          font-size: 0.9rem;
        }
        .syl-hero__levels {
          gap: 18px;
        }
        .syl-hero__level {
          font-size: 0.82rem;
          gap: 8px;
        }
        .syl-hero__level i {
          width: 28px;
          height: 28px;
          font-size: 12px;
        }
        .syllabus-page h1 {
          font-size: 1.5rem;
        }
        .syl-section-header {
          padding: 12px 14px;
        }
        .syl-section-header h2 {
          flex: 1 1 0;
          min-width: 0;
          flex-wrap: wrap;
          gap: 6px 10px;
          line-height: 1.35;
        }
        .syl-body {
          padding: 0 14px 14px;
        }
        .syl-intro {
          padding: 20px 16px;
        }
        .syl-intro__title {
          font-size: 1rem;
        }
        .syl-intro__desc {
          font-size: 0.85rem;
        }
        .syl-intro__tips {
          flex-direction: column;
          gap: 8px;
        }
        .syl-intro__tip {
          font-size: 0.78rem;
          padding: 7px 12px;
        }
        .syl-jump {
          gap: 8px;
        }
        .syl-jump-link {
          padding: 8px 14px;
          font-size: 0.8rem;
        }
        .syl-why-grid {
          grid-template-columns: 1fr;
        }
        .syl-priority-summary {
          grid-template-columns: repeat(2, minmax(0, 1fr));
        }
        .syl-priority-summary__item {
          padding: 10px;
        }
        .syl-cta-buttons {
          flex-direction: column;
        }
      }

      /* -- Jump to section nav -- */
      .syl-jump {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 22px;
        padding: 14px 18px;
        background: var(--white);
        border: 1px solid var(--black-01);
        border-radius: 10px;
      }
      .syl-jump-label {
        font-size: 13px;
        font-weight: 700;
        color: var(--text-blue);
        margin-right: 4px;
      }
      .syl-jump-link {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        padding: 5px 14px;
        border-radius: 999px;
        font-size: 13px;
        font-weight: 600;
        background: rgba(240, 154, 15, 0.08);
        color: var(--pri-yellow);
        border: 1px solid rgba(240, 154, 15, 0.2);
        transition: all 0.18s;
        text-decoration: none;
      }
      .syl-jump-link:hover {
        background: rgba(240, 154, 15, 0.16);
        border-color: rgba(240, 154, 15, 0.4);
        color: var(--pri-yellow);
        text-decoration: none;
      }

      /* -- Topic description (always visible) -- */
      .syl-desc {
        font-size: 13.5px;
        color: var(--black-07);
        padding: 0 20px 10px;
        margin: 0;
        line-height: 1.55;
      }

      /* -- Why this syllabus section -- */
      .syl-why {
        border-top: 1px solid var(--black-01);
        padding-top: 48px;
        margin-top: 48px;
      }
      .syl-why > h2 {
        font-size: 1.4rem;
        font-weight: 700;
        color: var(--text-blue);
        margin-bottom: 24px;
      }
      .syl-why-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
      }
      .syl-why-card {
        padding: 24px;
        border: 1px solid var(--black-01);
        border-radius: 14px;
        background: var(--white);
        box-shadow: 0 2px 8px rgba(0,0,0,0.04);
        transition: box-shadow 0.2s, border-color 0.2s;
      }
      .syl-why-card:hover {
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
        border-color: rgba(240, 154, 15, 0.3);
      }
      .syl-why-card i {
        font-size: 22px;
        color: var(--pri-yellow);
        margin-bottom: 10px;
        display: block;
      }
      .syl-why-card h3 {
        font-size: 15px;
        font-weight: 700;
        color: var(--text-blue);
        margin: 0 0 6px;
      }
      .syl-why-card p {
        font-size: 13.5px;
        color: var(--black-07);
        line-height: 1.6;
        margin: 0;
      }

      /* -- CTA section -- */
      .syl-cta {
        text-align: center;
        padding: 44px 24px;
        margin-top: 40px;
        background: linear-gradient(135deg, rgba(240, 154, 15, 0.08) 0%, rgba(37, 38, 94, 0.04) 100%);
        border-radius: 16px;
        border: 1px solid var(--black-01);
      }
      .syl-cta h2 {
        font-size: 1.5rem;
        font-weight: 800;
        color: var(--text-blue);
        margin-bottom: 10px;
      }
      .syl-cta > p {
        font-size: 15px;
        color: var(--black-07);
        max-width: 540px;
        margin: 0 auto 24px;
        line-height: 1.6;
      }
      .syl-cta-buttons {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: 12px;
      }
      .syl-cta-btn {
        display: inline-flex;
        align-items: center;
        gap: 7px;
        padding: 12px 28px;
        border-radius: 999px;
        font-size: 15px;
        font-weight: 700;
        text-decoration: none;
        transition: all 0.2s;
      }
      .syl-cta-btn--primary {
        background: var(--pri-yellow);
        color: #fff;
        border: 2px solid var(--pri-yellow);
      }
      .syl-cta-btn--primary:hover {
        background: transparent;
        color: var(--pri-yellow);
        text-decoration: none;
      }
      .syl-cta-btn--secondary {
        background: transparent;
        color: var(--text-blue);
        border: 2px solid var(--text-blue);
      }
      .syl-cta-btn--secondary:hover {
        background: var(--text-blue);
        color: #fff;
        text-decoration: none;
      }

      /* -- Dark theme additions for new sections -- */
      [data-theme="dark"] .syl-desc {
        color: rgba(255, 255, 255, 0.6);
      }
      [data-theme="dark"] .syl-why {
        border-top-color: rgba(255, 255, 255, 0.1);
      }
      [data-theme="dark"] .syl-why > h2 {
        color: var(--white);
      }
      [data-theme="dark"] .syl-why-card {
        background: #131320;
        border-color: rgba(255, 255, 255, 0.1);
      }
      [data-theme="dark"] .syl-why-card:hover {
        border-color: rgba(240, 154, 15, 0.3);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
      }
      [data-theme="dark"] .syl-why-card h3 {
        color: var(--white);
      }
      [data-theme="dark"] .syl-why-card p {
        color: rgba(255, 255, 255, 0.65);
      }
      [data-theme="dark"] .syl-cta {
        background: rgba(240, 154, 15, 0.05);
        border-color: rgba(255, 255, 255, 0.1);
      }
      [data-theme="dark"] .syl-cta h2 {
        color: rgba(255, 255, 255, 0.95);
      }
      [data-theme="dark"] .syl-cta > p {
        color: rgba(255, 255, 255, 0.7);
      }
      [data-theme="dark"] .syl-cta-btn--primary {
        background: var(--pri-yellow);
        color: #fff;
      }
      [data-theme="dark"] .syl-cta-btn--secondary {
        color: #bfdbfe;
        border-color: rgba(147, 197, 253, 0.4);
      }
      [data-theme="dark"] .syl-cta-btn--secondary:hover {
        background: rgba(147, 197, 253, 0.15);
        color: #fff;
      }

      /* also support body.dark-theme */
      body.dark-theme .syl-desc { color: rgba(255, 255, 255, 0.6); }
      body.dark-theme .syl-why { border-top-color: rgba(255, 255, 255, 0.1); }
      body.dark-theme .syl-why > h2 { color: var(--white); }
      body.dark-theme .syl-why-card { background: #131320; border-color: rgba(255, 255, 255, 0.1); }
      body.dark-theme .syl-why-card h3 { color: var(--white); }
      body.dark-theme .syl-why-card p { color: rgba(255, 255, 255, 0.65); }
      body.dark-theme .syl-cta { background: rgba(240, 154, 15, 0.05); border-color: rgba(255, 255, 255, 0.1); }
      body.dark-theme .syl-cta h2 { color: rgba(255, 255, 255, 0.95); }
      body.dark-theme .syl-cta > p { color: rgba(255, 255, 255, 0.7); }
      body.dark-theme .syl-cta-btn--secondary { color: #bfdbfe; border-color: rgba(147, 197, 253, 0.4); }

      /* -- Intro section -- */
      .syl-intro {
        text-align: center;
        margin-bottom: 32px;
        padding: 28px 24px;
        background: linear-gradient(135deg, rgba(240, 154, 15, 0.06) 0%, rgba(231, 44, 131, 0.03) 100%);
        border-radius: 16px;
        border: 1px solid rgba(240, 154, 15, 0.12);
      }
      .syl-intro__title {
        font-size: 1.1rem;
        font-weight: 700;
        color: var(--text-blue);
        margin-bottom: 10px;
      }
      .syl-intro__title span {
        background: linear-gradient(90deg, #f09a0f, #e72c83);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
      }
      .syl-intro__desc {
        font-size: 0.92rem;
        color: var(--black);
        opacity: 0.7;
        line-height: 1.7;
        max-width: 540px;
        margin: 0 auto 20px;
      }
      .syl-intro__tips {
        display: flex;
        justify-content: center;
        flex-wrap: wrap;
        gap: 12px;
        margin-bottom: 20px;
      }
      .syl-intro__tip {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 8px 16px;
        background: var(--white);
        border-radius: 10px;
        font-size: 0.82rem;
        font-weight: 600;
        border: 1px solid rgba(0, 0, 0, 0.06);
        box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
      }
      .syl-intro__tip i {
        font-size: 14px;
      }
      .syl-intro__tip.warning i { color: #e74c3c; }
      .syl-intro__tip.info i { color: #3b82f6; }
      .syl-intro__tip.success i { color: #22c55e; }
      .syl-intro__roadmap-link {
        font-size: 0.88rem;
        color: var(--text-blue);
        margin-bottom: 0;
      }
      .syl-intro__roadmap-link a {
        color: #f09a0f;
        font-weight: 600;
        text-decoration: none;
        transition: color 0.2s;
      }
      .syl-intro__roadmap-link a:hover {
        color: #e72c83;
        text-decoration: underline;
      }

      /* -- Jump navigation -- */
      .syl-jump {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 28px;
      }
      .syl-jump-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        padding: 10px 18px;
        border-radius: 12px;
        font-size: 0.85rem;
        font-weight: 600;
        background: var(--white);
        color: var(--text-blue);
        border: 1px solid rgba(0, 0, 0, 0.08);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        transition: all 0.2s;
        text-decoration: none;
      }
      .syl-jump-link i {
        font-size: 13px;
      }
      .syl-jump-link.beginner i { color: #22c55e; }
      .syl-jump-link.intermediate i { color: #3b82f6; }
      .syl-jump-link.advanced i { color: #8b5cf6; }
      .syl-jump-link.faq i { color: #f09a0f; }
      .syl-jump-link:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        border-color: rgba(240, 154, 15, 0.3);
        color: #f09a0f;
        text-decoration: none;
      }

      /* -- FAQ section -- */
      .syl-faq {
        border-top: 1px solid var(--black-01);
        padding-top: 36px;
        margin-top: 36px;
      }
      .syl-faq > h2 {
        font-size: 1.4rem;
        font-weight: 700;
        color: var(--text-blue);
        margin-bottom: 24px;
      }
      .syl-faq-item {
        margin-bottom: 16px;
        border: 1px solid var(--black-01);
        border-radius: 10px;
        overflow: hidden;
      }
      .syl-faq-toggle {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        padding: 18px 24px;
        background: var(--white);
        border: none;
        cursor: pointer;
        text-align: left;
        user-select: none;
        transition: background 0.18s;
      }
      .syl-faq-toggle:hover,
      .syl-faq-toggle:focus {
        background: rgba(240, 154, 15, 0.07);
        outline: none;
      }
      .syl-faq-toggle h3 {
        font-size: 15px;
        font-weight: 700;
        color: var(--text-blue);
        margin: 0;
        flex: 1;
        padding-right: 12px;
      }
      .syl-faq-chevron {
        font-size: 12px;
        color: var(--black-07);
        transition: transform 0.22s ease;
        flex-shrink: 0;
      }
      .syl-faq-toggle[aria-expanded="true"] .syl-faq-chevron {
        transform: rotate(90deg);
      }
      .syl-faq-body {
        padding: 0 24px 18px;
        border-top: 1px solid var(--black-01);
      }
      .syl-faq-body p {
        font-size: 14px;
        color: var(--black-07);
        line-height: 1.6;
        margin: 14px 0 0;
      }

      /* Dark theme additions */
      [data-theme="dark"] .syl-intro {
        background: linear-gradient(135deg, rgba(240, 154, 15, 0.08) 0%, rgba(231, 44, 131, 0.04) 100%);
        border-color: rgba(240, 154, 15, 0.2);
      }
      [data-theme="dark"] .syl-intro__title {
        color: var(--white);
      }
      [data-theme="dark"] .syl-intro__desc {
        color: rgba(255, 255, 255, 0.75);
      }
      [data-theme="dark"] .syl-intro__tip {
        background: rgba(255, 255, 255, 0.05);
        border-color: rgba(255, 255, 255, 0.1);
        color: rgba(255, 255, 255, 0.85);
      }
      [data-theme="dark"] .syl-intro__roadmap-link {
        color: rgba(255, 255, 255, 0.7);
      }
      [data-theme="dark"] .syl-jump-link {
        background: rgba(255, 255, 255, 0.05);
        border-color: rgba(255, 255, 255, 0.1);
        color: rgba(255, 255, 255, 0.85);
      }
      [data-theme="dark"] .syl-jump-link:hover {
        background: rgba(240, 154, 15, 0.1);
        border-color: rgba(240, 154, 15, 0.3);
        color: #f09a0f;
      }
      body.dark-theme .syl-intro { background: linear-gradient(135deg, rgba(240, 154, 15, 0.08) 0%, rgba(231, 44, 131, 0.04) 100%); border-color: rgba(240, 154, 15, 0.2); }
      body.dark-theme .syl-intro__title { color: var(--white); }
      body.dark-theme .syl-intro__desc { color: rgba(255, 255, 255, 0.75); }
      body.dark-theme .syl-intro__tip { background: rgba(255, 255, 255, 0.05); border-color: rgba(255, 255, 255, 0.1); color: rgba(255, 255, 255, 0.85); }
      body.dark-theme .syl-intro__roadmap-link { color: rgba(255, 255, 255, 0.7); }
      body.dark-theme .syl-jump-link { background: rgba(255, 255, 255, 0.05); border-color: rgba(255, 255, 255, 0.1); color: rgba(255, 255, 255, 0.85); }
      body.dark-theme .syl-jump-link:hover { background: rgba(240, 154, 15, 0.1); border-color: rgba(240, 154, 15, 0.3); color: #f09a0f; }
      [data-theme="dark"] .syl-faq {
        border-top-color: rgba(255, 255, 255, 0.1);
      }
      [data-theme="dark"] .syl-faq > h2 {
        color: var(--white);
      }
      [data-theme="dark"] .syl-faq-item {
        border-color: rgba(255, 255, 255, 0.1);
      }
      [data-theme="dark"] .syl-faq-toggle {
        background: var(--black);
      }
      [data-theme="dark"] .syl-faq-toggle:hover,
      [data-theme="dark"] .syl-faq-toggle:focus {
        background: rgba(240, 154, 15, 0.1);
      }
      [data-theme="dark"] .syl-faq-toggle h3 {
        color: var(--white);
      }
      [data-theme="dark"] .syl-faq-body {
        border-top-color: rgba(255, 255, 255, 0.1);
      }
      [data-theme="dark"] .syl-faq-body p {
        color: rgba(255, 255, 255, 0.75);
      }