/* --- 收藏页面 --- */
        #favPage { flex: 0; overflow: hidden; opacity: 0; pointer-events: none; height: 0; padding: 0; transition: opacity 0.15s; }
        #favPage.show { flex: 1; overflow-y: auto; opacity: 1; pointer-events: auto; height: auto; padding: 24px; }
        [data-mode="fav"] .chat-container { flex: none !important; height: 0 !important; overflow: hidden !important; padding: 0 !important; opacity: 0 !important; pointer-events: none !important; }
        [data-mode="fav"] .input-area { flex: none !important; height: 0 !important; overflow: hidden !important; padding: 0 !important; opacity: 0 !important; pointer-events: none !important; }
        [data-mode="fav"] .preset-tags-area { display: none !important; }
        [data-mode="fav"] .image-preview-area { display: none !important; }
        [data-mode="fav"] .gen-controls-panel { flex: none !important; height: 0 !important; overflow: hidden !important; padding: 0 !important; opacity: 0 !important; pointer-events: none !important; }
        [data-mode="fav"] .message-anchors { display: none !important; }

        .fav-waterfall {
            column-count: 5;
            column-gap: 12px;
            max-width: 1200px;
            margin: 0 auto;
        }
        @media (max-width: 1100px) { .fav-waterfall { column-count: 4; } }
        @media (max-width: 860px) { .fav-waterfall { column-count: 3; } }
        @media (max-width: 600px) { .fav-waterfall { column-count: 2; } }

        .fav-card {
            break-inside: avoid;
            margin-bottom: 12px;
            border-radius: 12px;
            position: relative;
            cursor: pointer;
            border: 1px solid var(--border-color);
            background: var(--bg-surface);
            transition: transform 0.2s, box-shadow 0.2s;
            animation: favFadeIn 0.4s ease both;
        }
        @keyframes favFadeIn {
            from { opacity: 0; transform: translateY(16px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .fav-card:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(0,0,0,0.1); }
        .fav-card img {
            width: 100%;
            display: block;
            object-fit: cover;
            border-radius: 12px;
        }
        .fav-card-overlay {
            position: absolute;
            top: 0; left: 0; right: 0;
            padding: 8px;
            display: flex;
            gap: 6px;
            opacity: 0;
            transition: opacity 0.2s;
            background: linear-gradient(180deg, rgba(0,0,0,0.5) 0%, transparent 100%);
            border-radius: 12px 12px 0 0;
        }
        .fav-card:hover .fav-card-overlay { opacity: 1; }
        .fav-card-overlay button {
            width: 30px;
            height: 30px;
            border-radius: 50%;
            border: none;
            background: rgba(255,255,255,0.9);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #333;
            transition: background 0.15s, transform 0.15s;
        }
        .fav-card-overlay button:hover { background: #fff; transform: scale(1.1); }
        .fav-card-overlay button svg { width: 15px; height: 15px; }

        /* 标签筛选栏 */
        .fav-tag-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            max-width: 1200px;
            margin: 0 auto 16px auto;
            padding: 0;
        }
        .fav-tag-chip {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 4px 12px;
            border-radius: 16px;
            font-size: 12px;
            border: 1px solid var(--border-color);
            background: var(--bg-surface);
            color: var(--text-muted);
            cursor: pointer;
            transition: all 0.15s;
            user-select: none;
        }
        .fav-tag-chip:hover { border-color: var(--text-muted); color: var(--text-main); }
        .fav-tag-chip.active { background: var(--text-main); color: var(--text-on-dark); border-color: var(--text-main); }

        /* 卡片左下角标签区域 */
        .fav-card-tags {
            position: absolute;
            bottom: 8px;
            left: 8px;
            right: 8px;
            display: flex;
            flex-wrap: wrap;
            gap: 4px;
            z-index: 2;
            pointer-events: none;
            padding-left: 0;
            transition: padding-left 0.2s;
        }
        .fav-card-tags > * { pointer-events: auto; }

        .fav-card-tag-badge {
            display: inline-flex;
            align-items: center;
            position: relative;
            gap: 3px;
            padding: 2px 7px;
            border-radius: 8px;
            font-size: 10px;
            background: rgba(0,0,0,0.4);
            backdrop-filter: blur(4px);
            color: #fff;
            max-width: 90px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .fav-card-tag-badge .fav-tag-x {
            position: absolute;
            cursor: pointer;
            opacity: 0;
            font-size: 10px;
            line-height: 1;
            transition: opacity 0.15s;
        }
        .fav-card-tag-badge:hover .fav-tag-x { position: static; opacity: 1; }

        .fav-card-model-badge {
            position: absolute;
            top: 8px;
            right: 8px;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 3px 8px;
            border-radius: 6px;
            font-size: 10px;
            background: rgba(0,0,0,0.45);
            backdrop-filter: blur(4px);
            color: #ddd;
            z-index: 2;
            max-width: 120px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
            pointer-events: none;
            opacity: 1;
            transition: opacity 0.25s;
        }
        .fav-card:hover .fav-card-model-badge { opacity: 0; }
        .fav-card-model-badge img,
        .fav-card-model-badge .model-logo-fallback {
            width: 12px;
            height: 12px;
            border-radius: 2px;
            flex-shrink: 0;
            object-fit: contain;
            filter: brightness(0) invert(1);
        }
        [data-theme="dark"] .fav-card-model-badge img { filter: invert(0.85) hue-rotate(180deg) brightness(1.2); }

        /* + 按钮：绝对定位在标签区域左侧，隐藏时缩回不占空间 */
        .fav-tag-add-btn {
            position: absolute;
            left: 0;
            bottom: 0;
            width: 20px;
            height: 20px;
            border-radius: 6px;
            border: 1px solid rgba(255,255,255,0.3);
            background: rgba(0,0,0,0.35);
            backdrop-filter: blur(4px);
            color: rgba(255,255,255,0.7);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            font-weight: 300;
            transition: opacity 0.2s, background 0.15s;
            line-height: 1;
            opacity: 0;
            z-index: 3;
        }
        .fav-card:hover .fav-tag-add-btn { opacity: 1; }
        .fav-tag-add-btn:hover { background: rgba(0,0,0,0.6); color: #fff; }

        /* hover 时标签向右挪，给 + 按钮让出空间 */
        .fav-card:hover .fav-card-tags { padding-left: 24px; }

        /* 标签输入弹窗（挂载在 body，fixed 定位，不影响瀑布流） */
        .fav-tag-input-popup {
            position: fixed;
            z-index: 110;
            background: rgba(20,20,20,0.92);
            backdrop-filter: blur(8px);
            border-radius: 10px;
            border: 1px solid rgba(255,255,255,0.15);
            min-width: 150px;
            max-width: 200px;
            overflow: hidden;
            box-shadow: 0 4px 16px rgba(0,0,0,0.25);
        }
        .fav-tag-input-popup input {
            width: 100%;
            padding: 7px 10px;
            border: none;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            background: transparent;
            color: #fff;
            font-size: 12px;
            outline: none;
            box-sizing: border-box;
        }
        .fav-tag-input-popup input::placeholder { color: rgba(255,255,255,0.35); }
        .fav-tag-suggest-list {
            max-height: 120px;
            overflow-y: auto;
            scrollbar-width: none;
        }
        .fav-tag-suggest-list::-webkit-scrollbar { display: none; }
        .fav-tag-suggest-item {
            padding: 6px 10px;
            font-size: 12px;
            color: rgba(255,255,255,0.75);
            cursor: pointer;
            transition: background 0.1s;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .fav-tag-suggest-item:hover { background: rgba(255,255,255,0.1); color: #fff; }
        .fav-tag-suggest-empty {
            padding: 8px 10px;
            font-size: 11px;
            color: rgba(255,255,255,0.3);
            text-align: center;
        }

        .fav-empty {
            text-align: center;
            padding: 80px 20px;
            color: var(--text-muted);
        }
        .fav-empty svg { opacity: 0.3; margin-bottom: 16px; }
        .fav-empty h3 { font-size: 18px; margin-bottom: 6px; font-weight: 600; }
        .fav-empty p { font-size: 13px; }

        .fav-gen-heart {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            background: var(--bg-surface);
            color: var(--text-muted);
            cursor: pointer;
            transition: all 0.15s;
            flex-shrink: 0;
        }
        .fav-gen-heart:hover { border-color: #e74c3c; color: #e74c3c; }
        .fav-gen-heart.favorited { color: #e74c3c; border-color: #e74c3c; background: #fef0f0; }
        [data-theme="dark"] .fav-gen-heart.favorited { background: #3a1a1a; }
        .fav-gen-heart svg { width: 14px; height: 14px; pointer-events: none; }