/* forum 模块 — 论坛/5ch風掲示板（板块栏·标签·搜索·帖子列表·帖子详情·翻译标签·分页·删除·TTS·图片·骨架屏·Part导航）样式（v2.108.0 从 style.css 拆出，纯重构）
   留 core 的论坛相关：主题系统区的 [data-theme] 深色覆盖（靠特异性赢，不随本文件走）、
   .official-cat-badge / .plot-entry / .summary-list-preview（无前缀、官方情报/剧情/总结区，可能共享）、
   .image-modal + @keyframes fadeIn（全屏图片查看，跨板块共用）、details.tl（通用翻译标签）、
   #pixiv-novel .forum-tabs 覆盖（pixiv 视图定制）。 */

/* ========== 论坛 5ch 风格 ========== */

/* 板块选择栏 */
.forum-slot-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-light);
}

.forum-slot-bar select {
    flex: 1;
    font-size: 13px;
    font-weight: 600;
    background: var(--bg-secondary);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    padding: 4px 8px;
    color: var(--text-primary);
    min-width: 0;
}

.forum-slot-btn {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    border: 1px solid var(--border-light);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

/* 论坛标签栏 */
.forum-tabs {
    display: flex;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-light);
    /* position: sticky;  Removed to fix overlap issues */
    /* top: 56px; */
    /* z-index: 10; */
}

.forum-tab {
    flex: 1;
    padding: 12px;
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
}

.forum-tab.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

/* 论坛搜索栏 */
.forum-search-bar {
    padding: 8px 12px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-light);
}
.forum-search-bar input {
    width: 100%;
    padding: 7px 12px;
    font-size: 13px;
    border: 1px solid var(--border-light);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    outline: none;
    box-sizing: border-box;
}
.forum-search-bar input:focus {
    border-color: var(--accent-color);
}

/* 帖子列表项 */
.fch-thread-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-light);
    cursor: pointer;
    transition: background 0.15s;
}

.fch-thread-item:hover {
    background: var(--bg-secondary);
}

.fch-thread-item:active {
    background: var(--border-light);
}

.fch-thread-title {
    flex: 1;
    font-size: 14px;
    font-weight: 600;
    color: #0000EE;
    margin-right: 12px;
    line-height: 1.4;
}

.fch-thread-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.fch-reply-count {
    background: #789922;
    color: white;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
}

.fch-thread-time {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 3px;
}

.fch-new-badge {
    background: #ff3b30;
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 8px;
    letter-spacing: 0.5px;
    animation: fch-new-pulse 1.5s ease-in-out infinite;
}

@keyframes fch-new-pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.6;
    }
}

.fch-fav-mark {
    display: flex;
    align-items: center;
}

/* 5ch 帖子详情 */
.fch-thread-body {
    background: #efefef;
}

.fch-post {
    position: relative;
    padding: 10px 14px;
    border-bottom: 1px solid #ddd;
    background: #efefef;
}

.fch-post-header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 4px;
    margin-bottom: 6px;
    font-size: 12px;
    line-height: 1.5;
}

.fch-post-num {
    font-weight: 700;
    color: #000;
    margin-right: 2px;
}

.fch-post-label {
    color: #666;
}

.fch-post-author {
    color: #008000;
    font-weight: 700;
}

.fch-op-badge {
    background: #c0392b;
    color: #fff;
    font-size: 10px;
    padding: 1px 5px;
    border-radius: 3px;
    margin-left: 4px;
    font-weight: 700;
    vertical-align: middle;
}

.fch-user-badge {
    background: var(--accent-color, #6c63ff);
    color: #fff;
    font-size: 10px;
    padding: 1px 5px;
    border-radius: 3px;
    margin-left: 4px;
    font-weight: 700;
    vertical-align: middle;
}

.fch-legend-mark {
    font-size: 14px;
    cursor: pointer;
    color: #9b59b6;
    margin-left: 4px;
    opacity: 0.7;
    transition: opacity 0.2s;
    user-select: none;
}

.fch-legend-mark:hover {
    opacity: 1;
}

/* Part 制度 CSS */
.fch-thread-ended {
    text-align: center;
    padding: 16px 8px;
    color: #999;
    font-size: 12px;
    line-height: 2;
    border-top: 1px dashed #ccc;
    border-bottom: 1px dashed #ccc;
    margin: 8px 0;
}

.fch-thread-limit-warn {
    text-align: center;
    padding: 6px 12px;
    color: #e67e22;
    font-size: 12px;
    background: rgba(230, 126, 34, 0.08);
    border-radius: 6px;
    margin: 4px 8px 8px;
}

.fch-part-badge {
    background: #6c5ce7;
    color: #fff;
    font-size: 9px;
    padding: 1px 4px;
    border-radius: 3px;
    margin-left: 2px;
    vertical-align: middle;
}

.fch-full-badge {
    font-size: 11px;
    opacity: 0.55;
    margin-left: 2px;
}

.fch-post-date {
    color: #666;
    margin-left: 4px;
}

.fch-post-id {
    color: #999;
    margin-left: 4px;
}

.fch-post-content {
    font-size: var(--fch-font-size, 15px);
    line-height: 1.7;
    color: #333;
    padding-left: 8px;
    word-break: break-word;
    white-space: pre-wrap;
}

.fch-tl-block {
    margin-top: 8px;
    border-top: 1px solid #ddd;
    padding-top: 4px;
}

.fch-tl-btn {
    display: inline-block;
    font-size: calc(var(--fch-font-size, 15px) - 2px);
    color: #0070c9;
    cursor: pointer;
    list-style: none;
    padding: 2px 0;
}

.fch-tl-btn::-webkit-details-marker {
    display: none;
}

.fch-tl-content {
    font-size: var(--fch-font-size, 15px);
    line-height: 1.65;
    color: #555;
    margin-top: 6px;
    padding: 6px 8px;
    background: #f5f5f5;
    border-radius: 6px;
    white-space: pre-wrap;
    word-break: break-word;
}

/* 论坛编辑模式操作栏 */
.forum-edit-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-light);
}

/* 多选复选框 */
.fch-select-box {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid var(--border-dark);
    margin-right: 12px;
    flex-shrink: 0;
    transition: all 0.2s;
}

.fch-select-box.checked {
    background: var(--accent-color);
    border-color: var(--accent-color);
    position: relative;
}

.fch-select-box.checked::after {
    content: '✓';
    color: white;
    font-size: 13px;
    font-weight: 700;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.fch-thread-item.selected {
    background: var(--bg-secondary);
}

/* 论坛帖子翻译标签 */
.fch-post-content details {
    display: inline;
}

.fch-post-content details summary {
    display: inline;
    list-style: none;
    cursor: pointer;
}

.fch-post-content details summary::-webkit-details-marker {
    display: none;
}

.fch-thread-title details {
    display: inline;
}

.fch-thread-title details summary {
    display: inline;
    list-style: none;
    cursor: pointer;
}

.fch-thread-title details summary::-webkit-details-marker {
    display: none;
}

/* 论坛分页控制 */
.forum-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px;
    margin-top: 8px;
}

.forum-page-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--app-icon-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.forum-page-btn:not([disabled]):hover {
    background: var(--accent-color);
    color: white;
    transform: translateY(-1px);
}

.forum-page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.forum-page-info {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    min-width: 60px;
    text-align: center;
}

/* 回复删除按钮 */
.fch-reply-delete {
    position: absolute;
    right: 8px;
    top: 8px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: rgba(255, 59, 48, 0.1);
    color: #ff3b30;
    font-size: 18px;
    line-height: 24px;
    text-align: center;
    cursor: pointer;
    opacity: 0.6;
    transition: all 0.2s ease;
    user-select: none;
}

.fch-reply-delete:hover {
    opacity: 1;
    background: rgba(255, 59, 48, 0.2);
    transform: scale(1.1);
}

/* TTS 喇叭按钮 */
.fch-tts-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: 6px;
    padding: 2px;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 3px;
    opacity: 0.6;
    transition: opacity 0.15s, color 0.15s;
    vertical-align: middle;
    user-select: none;
}

.fch-tts-btn:hover {
    opacity: 1;
}

/* 论坛图片上传和显示 */
.forum-image-upload {
    margin-top: 12px;
    padding: 12px;
    background: rgba(0, 0, 0, 0.02);
    border-radius: 8px;
    border: 1px dashed var(--glass-border);
}

.forum-image-preview {
    margin-top: 8px;
}

.forum-image-preview img {
    max-width: 100%;
    max-height: 150px;
    border-radius: 8px;
    display: block;
}

.fch-post-images {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.fch-post-image {
    max-width: 100%;
    max-height: 300px;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 1px solid var(--glass-border);
}

.fch-post-image:hover {
    transform: scale(1.02);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* 论坛板块管理栏（平板/重定义版，排在基础 .forum-slot-bar 之后保持覆盖） */
.forum-slot-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-light);
}

.forum-slot-bar select {
    flex: 1;
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-light);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 14px;
}

.forum-slot-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.forum-slot-btn:hover {
    background: var(--bg-secondary);
    color: var(--accent-color);
}

/* Forum 骨架屏（兼容旧类名） */
.forum-skeleton-reply {
    padding: 14px 16px;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}
.forum-skeleton-reply .skel-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}
.forum-skeleton-reply .skel-circle {
    width: 28px; height: 28px;
    border-radius: 50%;
    background: var(--border-light);
}
.forum-skeleton-reply .skel-line {
    height: 14px;
    background: var(--border-light);
    border-radius: 6px;
    margin-bottom: 8px;
}

/* Forum — Part ナビゲーション */
.forum-part-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    font-size: 13px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-secondary);
}
.forum-part-link {
    background: none;
    border: none;
    color: var(--accent-color);
    font-weight: 600;
    cursor: pointer;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 13px;
    transition: background 0.15s;
}
.forum-part-link:active {
    background: color-mix(in srgb, var(--accent-color) 12%, transparent);
}
.forum-part-label {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 13px;
}