body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            background-color: #f8fafc;
        }

        .mode-switch-btn {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: linear-gradient(135deg, #3b82f6, #2563eb);
            color: white;
            padding: 15px 25px;
            border-radius: 50px;
            box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
            cursor: pointer;
            z-index: 9990;
            font-weight: bold;
            border: none;
            transition: all 0.3s;
        }

        .mode-switch-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
        }

        .mode-switch-btn.tomato-mode {
            background: linear-gradient(135deg, #ff6b6b, #ee5253);
            box-shadow: 0 4px 15px rgba(238, 82, 83, 0.4);
        }

        .hidden-mode {
            display: none !important;
        }

        .canvas-bg {
            background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAABGdBTUEAALGPC/xhBQAAAAlwSFlzAAAOwgAADsIBFShKgAAAABh0RVh0U29mdHdhcmUAcGFpbnQubmV0IDQuMC443Tt8RgAAACFJREFUOE9jATEAA0YMCJ8BRDAI/w8F/3Hgw/qfEaACBgYAd7QIv14074wAAAAASUVORK5CYII=');
        }

        @keyframes pulse-glow {
            0% {
                box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4);
            }

            70% {
                box-shadow: 0 0 0 10px rgba(59, 130, 246, 0);
            }

            100% {
                box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
            }
        }

        .magic-banner {
            animation: pulse-glow 2s infinite;
        }

        .progress-overlay {
            position: absolute;
            inset: 0;
            background: rgba(0, 0, 0, 0.85);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: white;
            border-radius: 0.75rem;
            z-index: 50;
            backdrop-filter: blur(4px);
        }

        .spinner {
            border: 4px solid rgba(255, 255, 255, 0.2);
            border-top: 4px solid #3b82f6;
            border-radius: 50%;
            width: 44px;
            height: 44px;
            animation: spin 1s linear infinite;
            margin-bottom: 15px;
        }

        @keyframes spin {
            0% {
                transform: rotate(0deg);
            }

            100% {
                transform: rotate(360deg);
            }
        }

        .progress-bar-container {
            width: 80%;
            max-width: 300px;
            height: 8px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
            overflow: hidden;
            margin-top: 10px;
        }

        .progress-bar-fill {
            height: 100%;
            background: #3b82f6;
            width: 0%;
            transition: width 0.2s;
        }

        .ad-container {
            width: 100%;
            max-width: 1000px;
            margin: 15px auto;
            min-height: 100px;
            text-align: center;
            display: flex;
            justify-content: center;
            align-items: center;
            background: rgba(0, 0, 0, 0.02);
            border-radius: 8px;
            border: 1px dashed #cbd5e1;
        }

        /* 文章内容区样式 */
        .content-article h2 {
            color: #1e293b;
            font-size: 1.5rem;
            font-weight: bold;
            margin-top: 1.5rem;
            margin-bottom: 0.75rem;
            border-bottom: 2px solid #e2e8f0;
            padding-bottom: 0.5rem;
        }

        .content-article h3 {
            color: #334155;
            font-size: 1.25rem;
            font-weight: bold;
            margin-top: 1.2rem;
            margin-bottom: 0.5rem;
        }

        .content-article p {
            color: #475569;
            line-height: 1.7;
            margin-bottom: 1rem;
        }

        .content-article ul {
            list-style-type: disc;
            padding-left: 1.5rem;
            color: #475569;
            margin-bottom: 1rem;
        }

        .content-article li {
            margin-bottom: 0.5rem;
            line-height: 1.6;
        }