.toc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 28px;
}

.toc-header h1 {
    font-size: 1.4rem;
    color: var(--text-title);
    font-weight: 700;
}

.toc-header .header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.toc-header .header-actions a {
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 18px;
    border: 1px solid var(--btn-border);
    border-radius: 4px;
    color: var(--btn-text);
    background-color: var(--btn-bg);
    transition: all 0.2s ease;
}

.toc-header .header-actions a:hover {
    background-color: var(--btn-hover-bg);
    border-color: var(--btn-hover-border);
    color: var(--btn-hover-text);
}

.novel-intro {
    display: flex;
    gap: 28px;
    background-color: var(--bg-card);
    border-radius: 4px;
    padding: 28px 32px;
    margin-bottom: 20px;
}

.intro-cover {
    flex-shrink: 0;
    width: 160px;
}

.intro-meta {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding-top: 4px;
}

.intro-title {
    font-size: 1.4rem;
    color: var(--text-title);
    font-weight: 700;
    line-height: 1.4;
}

.intro-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.intro-tags .tag {
    display: inline-block;
    padding: 2px 10px;
    font-size: 0.8rem;
    color: var(--text-accent);
    background-color: var(--tag-bg);
    border-radius: 3px;
}

.intro-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.intro-info .info-item {
    font-size: 0.9rem;
    color: var(--text-body);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.intro-info .info-label {
    color: var(--text-muted);
}

.intro-info .info-value {
    color: var(--text-body);
}

.intro-info .status-ongoing {
    color: var(--status-ongoing);
}

.intro-info .status-finished {
    color: var(--status-finished);
}

.intro-summary {
    background-color: var(--bg-card);
    border-radius: 4px;
    padding: 24px 32px;
    margin-bottom: 24px;
}

.intro-summary h3 {
    font-size: 1rem;
    color: var(--text-accent);
    margin-bottom: 12px;
    font-weight: 700;
}

.intro-summary p {
    font-size: 0.95rem;
    color: var(--text-body);
    line-height: 1.9;
    text-indent: 2em;
    margin-bottom: 20px;
}

.intro-summary hr {
    margin: 30px auto;
    width: 75%;
    border-color: #46464626;
}

.toc-list {
    background-color: var(--bg-card);
    border-radius: 4px;
    padding: 32px 40px;
    margin-bottom: 40px;
}

.toc-list details {
    margin-bottom: 8px;
}

.toc-list details:last-child {
    margin-bottom: 0;
}

.toc-list summary {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-title);
    padding: 12px 16px;
    cursor: pointer;
    border-radius: 4px;
    user-select: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.toc-list summary::-webkit-details-marker {
    display: none;
}

.toc-list summary::before {
    content: "\25B6";
    font-size: 0.8rem;
    color: var(--text-accent);
    transition: transform 0.2s ease;
}

.toc-list details[open] summary::before {
    content: "\25BC";
}

.toc-list summary:hover {
    background-color: var(--tag-bg);
}

.toc-list .chapter-list {
    padding: 4px 0 8px 28px;
}

.toc-list .chapter-list a {
    display: block;
    padding: 8px 12px;
    color: var(--text-body);
    font-size: 0.95rem;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.toc-list .chapter-list a:hover {
    background-color: var(--tag-bg);
    color: var(--btn-hover-text);
    padding-left: 16px;
}

.copyright {
    text-align: center;
    padding: 20px 0;
    font-size: 0.8rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
}

@media (max-width: 600px) {
    .toc-header {
        padding: 16px 0;
        margin-bottom: 20px;
    }

    .toc-header h1 {
        font-size: 1.2rem;
    }

    .toc-header .header-actions a {
        padding: 4px 12px;
        font-size: 0.85rem;
    }

    .novel-intro {
        flex-direction: column;
        align-items: center;
        gap: 16px;
        padding: 20px 16px;
    }

    .intro-cover {
        width: 120px;
    }

    .intro-meta {
        align-items: center;
        text-align: center;
        padding-top: 0;
    }

    .intro-title {
        font-size: 1.2rem;
    }

    .intro-tags {
        justify-content: center;
    }

    .intro-info {
        justify-content: center;
    }

    .intro-summary {
        padding: 20px 16px;
    }

    .toc-list {
        padding: 20px 16px;
    }

    .toc-list summary {
        font-size: 1rem;
        padding: 10px 12px;
    }

    .toc-list .chapter-list {
        padding-left: 20px;
    }

    .toc-list .chapter-list a {
        padding: 6px 10px;
        font-size: 0.9rem;
    }
}