// ==UserScript==
// @name         骨碌碌手机沉浸阅读套件 V1.94
// @namespace    Violentmonkey Scripts
// @match        *://gululu.world/book/*
// @match        *://www.gululu.world/book/*
// @match        *://gululu.world/
// @match        *://www.gululu.world/
// @grant        GM_xmlhttpRequest
// @grant        unsafeWindow
// @run-at       document-start
// @version      1.94
// @author       无限悾涧
// @description  手机阅读完美适配：沉浸式阅读 / 楼层&段落评论 / 氛围背景 / 音乐控制 / 骰子解析 / 快捷菜单 / 流量节省。需配合主脚本使用。
// ==/UserScript==

(function() {
	'use strict';

	// ==========================================
	// 0. 启动配置检测
	// ==========================================
	let config = {};
	try {
		config = JSON.parse(localStorage.getItem('gululu_global_config_v6') || '{}');
	} catch (e) {}

    // 容错：防止缩放系数异常导致界面崩溃
    if (!config.mobileScale || isNaN(config.mobileScale) || config.mobileScale < 0.1) {
        config.mobileScale = 1.0;
    }

	if (!config.mobileModeEnabled) return;

    // ⚡ 全屏自动缩放逻辑 (全局生效 + 跨页面继承)
    let preFullscreenScale = null;

    const updateScaleUI = () => {
        document.documentElement.style.setProperty('--gm-scale', config.mobileScale);
        const scaleText = `UI缩放: ${Math.round(config.mobileScale * 100)}%`;
        document.querySelectorAll('#gm-act-scale span, #gm-menu-scale').forEach(el => {
            if(el.id === 'gm-menu-scale') el.innerText = scaleText;
            else el.innerText = scaleText;
        });
    };

    const handleFullscreenChange = () => {
        const isFull = !!document.fullscreenElement;
        const scales = [0.25, 0.5, 0.75, 1.0, 1.25, 1.5];

        if (isFull) {
            // 进入全屏：如果之前没保存过比例，则保存当前比例
            if (preFullscreenScale === null) {
                preFullscreenScale = config.mobileScale;
            }

            // 计算目标比例 (降2级，例如 1.0 -> 0.5)
            let idx = scales.indexOf(preFullscreenScale);
            if (idx === -1) idx = 3;
            let newIdx = Math.max(0, idx - 2);

            // 应用新比例
            config.mobileScale = scales[newIdx];

            // 更新按钮文本
            document.querySelectorAll('#gm-menu-fullscreen, #gm-act-fullscreen span').forEach(el => {
                if(el.tagName === 'SPAN') el.innerText = '退出全屏';
                else el.innerText = '退出全屏 ✕';
            });
        } else {
            // 退出全屏：恢复比例
            if (preFullscreenScale !== null) {
                config.mobileScale = preFullscreenScale;
                preFullscreenScale = null;
            }

            // 恢复按钮文本
            document.querySelectorAll('#gm-menu-fullscreen, #gm-act-fullscreen span').forEach(el => {
                if(el.tagName === 'SPAN') el.innerText = '全屏模式';
                else el.innerText = '全屏模式 ⛶';
            });
        }
        updateScaleUI();
    };

    document.addEventListener('fullscreenchange', handleFullscreenChange);

    // 🚀 启动时恢复逻辑 (实现全屏继承)
    // 如果 sessionStorage 标记了全屏，但当前未全屏，则监听第一次交互来恢复
    if (sessionStorage.getItem('gm_is_fullscreen') === '1') {
        if (document.fullscreenElement) {
            handleFullscreenChange(); // 已经是全屏 (如刷新)，直接应用缩放
        } else {
            // 等待用户第一次点击/触摸时恢复全屏
            const restoreFs = () => {
                document.documentElement.requestFullscreen().catch(()=>{});
                document.removeEventListener('click', restoreFs);
                document.removeEventListener('touchend', restoreFs); // 改为 touchend 兼容性更好
            };
            document.addEventListener('click', restoreFs);
            document.addEventListener('touchend', restoreFs);
        }
    }

	console.log("📱 [Mobile Reforged] v4.5 启动...");

	// ==========================================
	// 0.5 流量节省拦截器
	// ==========================================
	const originalFetch = window.fetch;
	window.fetch = function(url, options) {
		if (typeof url === 'string' && url.includes('paragraph-comment-count')) {
			return Promise.resolve(new Response(JSON.stringify({
				code: 200,
				data: {}
			}), {
				status: 200,
				headers: {
					'Content-Type': 'application/json'
				}
			}));
		}
		return originalFetch.apply(this, arguments);
	};

	// ==========================================
	// 1. 样式系统
	// ==========================================
	const appStyle = `
        /* 核心：隐藏原网页 */
        #__next {
            opacity: 0 !important;
            pointer-events: none !important;
            position: fixed !important;
            z-index: -9999 !important;
        }

        html, body {
            background: #f5f6fa !important;
            overflow: hidden !important;
            overscroll-behavior: none !important;
            touch-action: none;
        }

        /* 手机版主容器 */
        #g-mobile-app {
            position: fixed; top: 0; left: 0; width: 100%; height: 100%;
            background: transparent;
            z-index: 999999;
            display: flex; flex-direction: column;
            font-family: -apple-system, "Microsoft YaHei", sans-serif;
            overscroll-behavior: none;
        }

        /* 背景图层 */
        #gm-bg-layer {
            position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
            z-index: 999000;
            background-size: cover; background-position: center;
            background-repeat: no-repeat;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.5s ease-in-out;
            filter: brightness(0.9);
        }
        #gm-bg-backdrop {
            position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
            z-index: 998000;
            background: rgba(255, 255, 255, 0.3);
            pointer-events: none;
        }

        /* 顶部导航 */
        .gm-navbar {
            height: 140px; background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.05); display: flex; align-items: center; justify-content: space-between; padding: 0 30px; flex-shrink: 0;
        }
        .gm-nav-title { font-weight: 800; font-size: 45px; color: #333; max-width: 80%; overflow:hidden; white-space:nowrap; text-overflow:ellipsis; }
        .gm-nav-btn { font-size: 50px; padding: 20px; color: #666; cursor: pointer; min-width: 60px; text-align: center; }

        /* 内容区域 */
        .gm-content { flex: 1; overflow-y: auto; overflow-x: hidden; padding: 20px; scroll-behavior: smooth; -webkit-overflow-scrolling: touch; overscroll-behavior: none; }

        /* 楼层卡片 */
        .gm-floor {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(5px);
            border-radius: 24px; padding: 35px; margin-bottom: 25px;
            box-shadow: 0 4px 16px rgba(0,0,0,0.05); border: 1px solid rgba(255,255,255,0.4);
            transition: background 0.3s;
        }
        .gm-floor-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 30px; padding-bottom: 20px; border-bottom: 2px solid rgba(0,0,0,0.05); }
        .gm-user-info { display: flex; align-items: center; gap: 25px; }
        .gm-avatar { width: 100px; height: 100px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.5); object-fit: cover; }
        .gm-username { font-size: 36px; font-weight: 700; color: #2d3436; }
        .gm-floor-meta { font-size: 28px; color: #636e72; margin-top: 8px; }

        .gm-floor-right { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }
        .gm-floor-id { font-size: 30px; color: #b2bec3; font-weight: bold; }
        .gm-floor-cmt-btn {
            font-size: 34px; color: #6c5ce7; background: rgba(108, 92, 231, 0.1);
            padding: 15px 35px; border-radius: 40px; cursor: pointer; font-weight: 700;
        }
        .gm-floor-cmt-btn:active { background: rgba(108, 92, 231, 0.2); transform: scale(0.95); }

        .gm-floor-body { font-size: 42px; line-height: 1.6; color: #2d3436; word-break: break-word; }
        .gm-floor-body img { width: 100%; height: auto; border-radius: 16px; margin: 20px 0; display: block; }
        .gm-floor-body p { margin-bottom: 25px; min-height: 40px; }
        .gm-floor-body h1, .gm-floor-body h2, .gm-floor-body h3 { margin: 30px 0; font-weight: 800; line-height: 1.4; color: #2d3436; }
        .gm-floor-body h1 { font-size: 1.4em; }
        .gm-floor-body h2 { font-size: 1.25em; }
        .gm-floor-body h3 { font-size: 1.1em; }

        /* 插件适配 */
        .g-dice-mask, .g-dice-revealed { font-size: 38px !important; height: auto !important; line-height: 1.5 !important; padding: 4px 12px !important; border-radius: 12px !important; min-width: 80px !important; margin: 0 6px !important; border-width: 2px !important; }
        .g-dice-mask::after { font-size: 32px !important; }
        .g-music-key { font-size: 36px !important; padding: 16px 40px !important; border-radius: 60px !important; margin: 15px 0 !important; height: auto !important; max-width: 90% !important; box-shadow: 0 6px 20px rgba(108, 92, 231, 0.3) !important; }
        .g-music-key::before { font-size: 30px !important; margin-right: 16px !important; }
        .g-fold-controller { font-size: 36px !important; padding: 20px 30px !important; margin: 20px 0 !important; border-radius: 16px !important; border-width: 2px !important; }
        .g-folded-content { padding-left: 30px !important; border-left-width: 6px !important; margin-left: 15px !important; }
        .g-secret-chest, .g-clue-key { font-size: 34px !important; padding: 16px 24px !important; border-radius: 16px !important; border-width: 3px !important; margin: 10px 0 !important; }
        .g-quote-box { padding: 20px 30px !important; border-left-width: 8px !important; margin: 20px 0 !important; }
        .g-quote-content { font-size: 36px !important; }
        .g-quote-icon { font-size: 60px !important; top: -25px !important; }
        .g-quote-info { font-size: 28px !important; margin-top: 10px !important; }

        .gm-loader { padding: 40px; text-align: center; color: #999; font-size: 30px; display: none; justify-content: center; align-items: center; }
        .gm-loader.active { display: flex; }
        .gm-loader::after { content:""; width:40px; height:40px; border:4px solid #ddd; border-top-color:#888; border-radius:50%; margin-left:20px; animation:gm-spin 0.8s linear infinite; }
        @keyframes gm-spin { to { transform: rotate(360deg); } }

        /* --- 🌙 手机版夜间模式 (深度适配) --- */
        body.g-night-mode, body.g-night-mode html { background-color: #121212 !important; }

        body.g-night-mode #g-mobile-app { background: transparent; }
        body.g-night-mode .gm-navbar { background: rgba(30, 30, 30, 0.95); border-color: rgba(255,255,255,0.1); }
        body.g-night-mode .gm-nav-title { color: #dfe6e9; }
        body.g-night-mode .gm-nav-btn { color: #b2bec3; }

        body.g-night-mode .gm-floor { background: rgba(35, 35, 35, 0.85); box-shadow: none; border: 1px solid rgba(255,255,255,0.08); }
        body.g-night-mode .gm-floor-header { border-color: rgba(255,255,255,0.1); }
        body.g-night-mode .gm-username { color: #dfe6e9; }
        body.g-night-mode .gm-floor-meta { color: #636e72; }
        body.g-night-mode .gm-floor-body, body.g-night-mode .gm-floor-body p { color: #b2bec3 !important; }

        /* 降低图片亮度，保护眼睛 */
        body.g-night-mode .gm-floor-body img { filter: brightness(0.7); transition: filter 0.3s; }

        /* 组件适配 */
        body.g-night-mode .g-dice-mask { background-color: #2d3436 !important; border-color: #555 !important; }
        body.g-night-mode .g-fold-controller { background: #2d2d2d !important; border-color: #555 !important; color: #ddd !important; }
        body.g-night-mode .g-quote-box { background: #2d3436 !important; }
        body.g-night-mode .g-quote-content { color: #b2bec3 !important; }

        /* 选中文字颜色 */
        body.g-night-mode ::selection { background: #fdcb6e !important; color: #000 !important; }

        /* === 评论系统 === */
        .gm-comment-btn {
            display: none; /* 默认隐藏 */
            position: relative; width: 54px; height: 40px;
            margin-left: 2px; cursor: pointer;
            vertical-align: -5px;
            transition: all 0.2s; -webkit-tap-highlight-color: transparent;
        }
        .gm-comment-btn svg { width: 100%; height: 100%; filter: drop-shadow(0 2px 2px rgba(0,0,0,0.1)); }
        .gm-comment-btn svg path { stroke: #999; stroke-width: 1.2; }
        .gm-comment-num { position: absolute; top: 70%; left: 50%; transform: translate(-50%, -50%); font-size: 20px; color: #999; font-weight: bold; font-family: sans-serif; }
        .gm-comment-btn:active { transform: scale(1.2); }
        .gm-comment-btn.has-comment { display: inline-block; opacity: 1; }
        .g-show-comments .gm-comment-btn { display: inline-block !important; }
        .g-show-comments .gm-comment-btn:not(.has-comment) { opacity: 0.4; filter: grayscale(1); }

        #gm-comment-toggle {
            position: fixed; bottom: 170px; right: 20px; width: 80px; height: 80px;
            background: rgba(255,255,255,0.95); border-radius: 50%;
            box-shadow: 0 4px 16px rgba(0,0,0,0.2); border: 2px solid #dcdde1;
            text-align: center; line-height: 80px; cursor: pointer; z-index: 1000001;
            font-size: 36px; transition: all 0.2s; backdrop-filter: blur(5px);
        }
        #gm-comment-toggle:active { transform: scale(0.9); background: #eee; }
        #gm-comment-toggle.active { background: #6c5ce7; color: white; border-color: #6c5ce7; box-shadow: 0 4px 20px rgba(108, 92, 231, 0.4); }

        #gm-home-btn {
            position: fixed; bottom: 70px; right: 20px; width: 80px; height: 80px;
            background: rgba(255,255,255,0.95); border-radius: 50%;
            box-shadow: 0 4px 16px rgba(0,0,0,0.2); border: 2px solid #dcdde1;
            text-align: center; line-height: 80px; cursor: pointer; z-index: 1000001;
            font-size: 36px; transition: all 0.2s; backdrop-filter: blur(5px);
        }
        #gm-home-btn:active { transform: scale(0.9); background: #eee; }

        body.g-night-mode #gm-comment-toggle, body.g-night-mode #gm-home-btn { background: rgba(50,50,50,0.9); color: #ccc; border-color: #555; }
        body.g-night-mode #gm-comment-toggle.active { background: #6c5ce7; color: white; }

        /* === 快捷菜单 === */
        #gm-menu-toggle {
            position: fixed; bottom: 270px; right: 20px; width: 80px; height: 80px;
            background: rgba(255,255,255,0.95); border-radius: 50%;
            box-shadow: 0 4px 16px rgba(0,0,0,0.2); border: 2px solid #dcdde1;
            text-align: center; line-height: 80px; cursor: pointer; z-index: 1000001;
            font-size: 36px; transition: all 0.2s; backdrop-filter: blur(5px);
        }
        #gm-menu-toggle:active { transform: scale(0.9); background: #eee; }
        #gm-menu-toggle.active { transform: rotate(45deg); background: #636e72; color: white; border-color: #636e72; }

        .gm-menu-list {
            position: fixed; bottom: 370px; right: 20px;
            display: flex; flex-direction: column; gap: 20px;
            z-index: 1000001; pointer-events: none;
            opacity: 0; transform: translateY(20px) scale(0.9); transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            transform-origin: bottom right;
        }
        .gm-menu-list.active { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }

        .gm-menu-item {
            background: rgba(255,255,255,0.95); padding: 15px 30px; border-radius: 40px;
            box-shadow: 0 4px 16px rgba(0,0,0,0.15); font-size: 28px; font-weight: bold;
            color: #333; text-align: right; cursor: pointer; border: 1px solid #eee;
            display: flex; align-items: center; justify-content: flex-end; gap: 15px;
            backdrop-filter: blur(5px);
        }
        .gm-menu-item:active { transform: scale(0.95); background: #f0f0f0; }

        body.g-night-mode #gm-menu-toggle { background: rgba(50,50,50,0.9); color: #ccc; border-color: #555; }
        body.g-night-mode #gm-menu-toggle.active { background: #636e72; color: white; }
        body.g-night-mode .gm-menu-item { background: rgba(50,50,50,0.95); color: #ccc; border-color: #555; }

        /* === 评论抽屉修复 === */
        #gm-cmt-drawer {
            position: fixed; bottom: 0; left: 0; width: 100%; height: 70vh;
            background: #fff; border-radius: 40px 40px 0 0;
            /* 提升层级，高于悬浮按钮(1000001) */
            z-index: 1000010;
            transform: translateY(110%); transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
            display: flex; flex-direction: column; box-shadow: 0 -10px 40px rgba(0,0,0,0.1);
        }
        #gm-cmt-drawer.active { transform: translateY(0); }
        #gm-cmt-mask {
            position: fixed; top: 0; left: 0; width: 100%; height: 100%;
            /* 提升遮罩层级，防止误触按钮 */
            background: rgba(0,0,0,0.5); z-index: 1000005;
            opacity: 0; pointer-events: none; transition: opacity 0.3s;
        }
        #gm-cmt-mask.active { opacity: 1; pointer-events: auto; }

        /* 布局保护：防止 flex 子元素溢出或被挤压 */
        .gm-cmt-header {
            padding: 25px; font-size: 34px; font-weight: bold;
            border-bottom: 1px solid #eee; display: flex; justify-content: space-between; align-items: center;
            flex-shrink: 0; /* 防止被挤压 */
        }
        .gm-cmt-close-btn {
            color: #999; font-weight: normal; cursor: pointer;
            padding: 10px; margin: -10px; /* 增加点击区域 */
            font-size: 40px; line-height: 1;
        }
        .gm-cmt-list {
            flex: 1; overflow-y: auto; padding: 25px;
            -webkit-overflow-scrolling: touch;
            min-height: 0; /* ⚡ 关键：允许 flex 子元素收缩，产生滚动条 */
        }
        .gm-cmt-item { display: flex; gap: 20px; padding: 25px 0; border-bottom: 1px solid #f5f5f5; }
        .gm-cmt-avatar { width: 90px; height: 90px; border-radius: 50%; object-fit: cover; }
        .gm-cmt-content { flex: 1; font-size: 34px; line-height: 1.5; color: #333; }
        .gm-cmt-meta { font-size: 26px; color: #999; margin-top: 12px; display: flex; justify-content: space-between; align-items: center; }
        .gm-cmt-like-btn {
            padding: 10px 0 10px 30px; /* 左侧留空，防止误触 */
            font-size: 56px;    /* 进一步增大图标 */
            cursor: pointer;
            transition: transform 0.2s, color 0.2s;
            user-select: none;
            color: #b2bec3;
            display: flex; align-items: center; justify-content: center;
            align-self: flex-start; /* 顶部对齐 */
            flex-shrink: 0; /* 防止被挤压 */
        }
        .gm-cmt-like-btn:active { transform: scale(1.2); }
        .gm-cmt-like-btn.liked { color: #ff4757; }

        body.g-night-mode #gm-cmt-drawer { background: #1e1e1e; border-top: 1px solid #333; }
        body.g-night-mode .gm-cmt-header { border-color: #333; color: #eee; }
        body.g-night-mode .gm-cmt-content { color: #ccc; }
        body.g-night-mode .gm-cmt-item { border-color: #333; }

        /* 跳转按钮 - 金色版 */
        .gm-jump-btn {
            display: block; width: 100%; padding: 30px;
            margin: 40px 0; border-radius: 24px;
            background: linear-gradient(135deg, #f1c40f 0%, #f39c12 100%);
            border: 4px solid #e67e22;
            color: white;
            font-size: 40px; font-weight: 800; text-align: center;
            box-shadow: 0 10px 25px rgba(243, 156, 18, 0.4), inset 0 2px 0 rgba(255,255,255,0.2);
            transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
            text-shadow: 0 2px 4px rgba(0,0,0,0.15);
            letter-spacing: 2px;
        }
        .gm-jump-btn:active {
            transform: scale(0.96) translateY(2px);
            box-shadow: 0 4px 12px rgba(243, 156, 18, 0.3);
            filter: brightness(0.95);
            border-color: #d35400;
        }
        body.g-night-mode .gm-jump-btn {
            background: linear-gradient(135deg, #b7791f 0%, #d35400 100%);
            border-color: #a0522d;
            color: #f1f2f6;
            box-shadow: 0 10px 25px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.1);
        }

        .gm-cmt-footer {
            padding: 20px; border-top: 1px solid #eee;
            display: flex; flex-direction: column; background: #fff;
            padding-bottom: calc(20px + env(safe-area-inset-bottom));
            flex-shrink: 0;
        }
        .gm-cmt-input-area { display: flex; gap: 20px; align-items: flex-end; }
        .gm-reply-status {
            font-size: 26px; color: #666; background: #f0f2f5;
            padding: 10px 20px; margin-bottom: 15px; border-radius: 10px;
            display: none; justify-content: space-between; align-items: center;
        }
        .gm-reply-status.active { display: flex; }
        .gm-reply-cancel { color: #ff4757; font-weight: bold; cursor: pointer; padding: 5px 15px; }

        .gm-cmt-actions { display: flex; align-items: center; gap: 20px; }
        .gm-cmt-reply-btn { font-size: 28px; color: #666; font-weight: bold; cursor: pointer; padding: 10px 20px; background: #f5f6fa; border-radius: 30px; }
        .gm-cmt-reply-btn:active { background: #e1e1e1; }

        .gm-sub-cmt-list { margin-left: 110px; margin-top: 20px; background: #f9f9f9; border-radius: 16px; padding: 0 20px; display: none; }
        .gm-sub-cmt-list.active { display: block; }
        .gm-sub-cmt-item { padding: 20px 0; border-bottom: 1px solid #eee; font-size: 30px; color: #333; }
        .gm-sub-cmt-item:last-child { border-bottom: none; }
        .gm-sub-expand-btn { margin-left: 110px; margin-top: 15px; font-size: 26px; color: #6c5ce7; font-weight: bold; cursor: pointer; }

        /* 夜间模式子评论适配 */
        body.g-night-mode .gm-sub-cmt-list { background: #252525; border: 1px solid #333; }
        body.g-night-mode .gm-sub-cmt-item { border-color: #333; color: #ccc; }
        body.g-night-mode .gm-sub-cmt-item b { color: #eee; } /* 昵称高亮 */
        body.g-night-mode .gm-sub-content { color: #b2bec3; } /* 内容颜色 */
        body.g-night-mode .gm-reply-status { background: #333; color: #ccc; }
        body.g-night-mode .gm-cmt-reply-btn { background: #333; color: #aaa; }
        .gm-cmt-input {
            flex: 1; background: #f5f6fa; border: none;
            padding: 20px 30px; border-radius: 40px;
            font-size: 32px; outline: none; color: #333;
            resize: none; overflow-y: hidden; min-height: 80px; max-height: 300px;
            font-family: inherit; line-height: 1.4;
        }
        .gm-cmt-send {
            background: #6c5ce7; color: white; border: none;
            padding: 0 40px; border-radius: 40px; height: 80px;
            font-size: 32px; font-weight: bold; cursor: pointer;
        }
        .gm-cmt-send:active { transform: scale(0.95); }

        body.g-night-mode .gm-cmt-footer { background: #1e1e1e; border-color: #333; }
        body.g-night-mode .gm-cmt-input { background: #333; color: #eee; }

        /* === 底部标签栏 (App TabBar) === */
        .gm-tab-bar {
            position: fixed; bottom: 0; left: 0; width: 100%; height: 120px;
            background: rgba(255,255,255,0.98); border-top: 1px solid rgba(0,0,0,0.1);
            display: flex; justify-content: space-around; align-items: center;
            padding-bottom: env(safe-area-inset-bottom);
            z-index: 1000000; backdrop-filter: blur(10px);
            box-shadow: 0 -4px 20px rgba(0,0,0,0.05);
        }
        .gm-tab-item {
            display: flex; flex-direction: column; align-items: center; justify-content: center;
            flex: 1; height: 100%; color: #999;
            cursor: pointer; -webkit-tap-highlight-color: transparent;
            transition: transform 0.1s;
        }
        .gm-tab-item:active { transform: scale(0.95); }
        .gm-tab-item.active { color: #6c5ce7; }
        .gm-tab-icon { width: 48px; height: 48px; margin-bottom: 8px; fill: currentColor; }
        .gm-tab-label { font-size: 22px; font-weight: 600; }

        /* Tab 内容容器 */
        .gm-tab-content {
            display: none; width: 100%; height: 100%; padding: 40px; box-sizing: border-box;
            font-size: 32px; color: #666; animation: gm-fade-in 0.3s ease;
        }
        .gm-tab-content.active { display: block; }
        @keyframes gm-fade-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

        /* 夜间模式适配 */
        body.g-night-mode .gm-tab-bar { background: rgba(30,30,30,0.98); border-color: rgba(255,255,255,0.1); }
        body.g-night-mode .gm-tab-item { color: #636e72; }
        body.g-night-mode .gm-tab-item.active { color: #a29bfe; }
        body.g-night-mode .gm-tab-content { color: #ccc; }

        /* === 自定义模态框 === */
        .gm-modal-mask {
            position: fixed; top: 0; left: 0; width: 100%; height: 100%;
            background: rgba(0,0,0,0.5); z-index: 1000005;
            display: flex; justify-content: center; align-items: center;
            opacity: 0; pointer-events: none; transition: opacity 0.2s;
            backdrop-filter: blur(5px);
        }
        .gm-modal-mask.active { opacity: 1; pointer-events: auto; }
        .gm-modal {
            background: #fff; width: 80%; max-width: 600px;
            border-radius: 32px; padding: 50px;
            text-align: center; box-shadow: 0 10px 40px rgba(0,0,0,0.2);
            transform: scale(0.9); transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        }
        .gm-modal-mask.active .gm-modal { transform: scale(1); }
        .gm-modal-title { font-size: 40px; font-weight: 800; margin-bottom: 20px; color: #333; }
        .gm-modal-desc { font-size: 32px; color: #666; margin-bottom: 50px; line-height: 1.5; }
        .gm-modal-btns { display: flex; gap: 30px; justify-content: center; }
        .gm-modal-btn {
            flex: 1; padding: 25px 0; border-radius: 50px;
            font-size: 32px; font-weight: bold; cursor: pointer; transition: transform 0.1s;
        }
        .gm-modal-btn:active { transform: scale(0.95); }
        .gm-btn-cancel { background: #f1f2f6; color: #666; }
        .gm-btn-confirm { background: #6c5ce7; color: white; box-shadow: 0 5px 15px rgba(108, 92, 231, 0.3); }

        body.g-night-mode .gm-modal { background: #2d2d2d; }
        body.g-night-mode .gm-modal-title { color: #eee; }
        body.g-night-mode .gm-modal-desc { color: #aaa; }
        body.g-night-mode .gm-btn-cancel { background: #444; color: #ccc; }

        /* === 消息提示 (Toast) === */
        .gm-toast {
            position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%);
            background: rgba(0,0,0,0.8); color: #fff; padding: 25px 50px;
            border-radius: 16px; font-size: 32px; z-index: 1000020;
            opacity: 0; transition: opacity 0.3s; pointer-events: none;
            text-align: center; font-weight: bold;
        }
        .gm-toast.active { opacity: 1; }

        /* === 登录弹窗 === */
        .gm-login-tabs { display: flex; border-bottom: 1px solid #eee; margin-bottom: 30px; }
        .gm-login-tab { flex: 1; text-align: center; padding: 20px; font-size: 32px; color: #999; font-weight: bold; cursor: pointer; }
        .gm-login-tab.active { color: #6c5ce7; border-bottom: 4px solid #6c5ce7; }
        .gm-input-group { margin-bottom: 30px; position: relative; }
        .gm-login-input { width: 100%; padding: 25px 30px; background: #f5f6fa; border: 1px solid #eee; border-radius: 16px; font-size: 30px; outline: none; box-sizing: border-box; }
        .gm-login-input:focus { border-color: #6c5ce7; background: #fff; }
        .gm-code-btn { position: absolute; right: 10px; top: 10px; height: calc(100% - 20px); padding: 0 30px; background: #6c5ce7; color: white; border-radius: 12px; border: none; font-size: 26px; font-weight: bold; }
        .gm-code-btn:disabled { background: #ccc; }

        body.g-night-mode .gm-login-tab { border-color: #333; }
        body.g-night-mode .gm-login-input { background: #333; border-color: #444; color: #eee; }

        /* === 屏蔽主脚本的桌面端按钮 === */
        #g-setting-btn, #g-magic-btn, #g-mobile-btn, #g-mobile-search-btn, #g-stop-bgm-btn, #g-chat-btn {
            display: none !important;
        }
    `;

	// 立即注入样式 (处理缩放系数)
    // 1. 初始化缩放系数
    if (!config.mobileScale) config.mobileScale = 1.0;

    // 2. 将所有 px 单位转换为 calc(px * var(--gm-scale))
    // 排除 1px 边框 (可选，但为了保持精致感，一般边框不缩放，或者也缩放) -> 这里选择全量缩放以保持比例一致
    const scaledStyle = appStyle.replace(/(\d+)px/g, 'calc($1px * var(--gm-scale))');

    // 3. 注入变量定义和处理后的样式
	const style = document.createElement('style');
	style.textContent = `
        :root { --gm-scale: ${config.mobileScale}; }
        ${scaledStyle}
    `;
	(document.head || document.documentElement).appendChild(style);

	// ==========================================
	// 2. API 客户端
	// ==========================================
	class GululuApiClient {
		constructor() {
			this.token = null;
			this.directory = [];
			this.floorMap = new Map();
			this.loadedFloors = new Set();
			this.minLoaded = Infinity;
			this.maxLoaded = -Infinity;
			this.bookId = null;
			this.bookName = "骨碌碌阅读器";
			this.bookAuthor = null;
            this.totalFloors = 0;
            this.readProgress = 0;
            this.isCollected = false;
			this.isLoading = false;

			try {
				this.currentUser = JSON.parse(localStorage.getItem('gululu_user_cache') ||
					'{"nickName":"我","headPic":""}');
			} catch (e) {
				this.currentUser = {
					nickName: '我',
					headPic: ''
				};
			}
		}

            initData() {
                // 1. 优先从 Cookie 获取 Token (最准确)
                const cookieMatch = document.cookie.match(/(?:^|; )token=([^;]*)/);
                if (cookieMatch && cookieMatch[1]) {
                    this.token = decodeURIComponent(cookieMatch[1]);
                }

                const script = document.getElementById('__NEXT_DATA__');
                if (!script) return null;
                try {
                    const data = JSON.parse(script.textContent);
                    const props = data.props?.pageProps;
                    if (!props) return null;

                    // 2. 如果 Cookie 没拿到，尝试从 NEXT_DATA 获取
                    if (!this.token && props.tokenStore?.token) {
                        this.token = props.tokenStore.token;
                    }

                    // 3. 获取用户信息缓存 (如果有)
                    if (props.userStore?.userInfo) {
                        this.currentUser = props.userStore.userInfo;
                        localStorage.setItem('gululu_user_cache', JSON.stringify(this.currentUser));
                    }

                    // 4. 阅读页特有数据 (仅在有书籍数据时解析)
				if (props.bookFloorsStore && props.bookDetailStore) {
					this.directory = props.bookFloorsStore.directory || [];
					this.bookId = props.bookDetailStore.opusId;
					this.bookName = props.bookDetailStore.bookDetail?.name || "骨碌碌阅读器";
					this.bookAuthor = props.bookDetailStore.bookDetail?.author;

                    // 修复：优先使用目录最后一项的楼层号，解决"总楼层虚高"问题
                    if (this.directory && this.directory.length > 0) {
                        this.totalFloors = this.directory[this.directory.length - 1].floorNum;
                    } else {
                        this.totalFloors = props.bookDetailStore.bookDetail?.floorNum || 0;
                    }

                    this.readProgress = props.bookFloorsStore.readProgress || 0;
                    this.isCollected = props.bookDetailStore.bookDetail?.collect || false;

					this.directory.forEach(d => this.floorMap.set(d.floorNum, d.floorId));
					return props.bookFloorsStore.bookFloors;
				}
				return null;
			} catch (e) {
				console.error("解析数据失败", e);
				return null;
			}
		}

		fetchComments(floorId, paragraphId, page = 1) {
			return new Promise((resolve) => {
				if (!this.token) return resolve(null);
				let url =
					`https://backend.gululu.world/reader/opus/comment/page?opusId=${this.bookId}&current=${page}&size=20&floorId=${floorId}`;
				if (paragraphId) url += `&paragraphId=${paragraphId}`;

				GM_xmlhttpRequest({
					method: "GET",
					url: url,
					headers: {
						"Authorization": `Bearer ${this.token}`,
						"Origin": "https://www.gululu.world",
						"Referer": "https://www.gululu.world/"
					},
					onload: (response) => {
						try {
							const json = JSON.parse(response.responseText);
							resolve(json.data ? json.data.records : []);
						} catch (e) {
							resolve([]);
						}
					},
					onerror: () => resolve([])
				});
			});
		}

		fetchCommentCounts(paragraphIds) {
			return new Promise((resolve) => {
				if (!this.token || !paragraphIds || paragraphIds.length === 0) return resolve({});
				GM_xmlhttpRequest({
					method: "POST",
					url: "https://backend.gululu.world/reader/opus/comment/paragraph-comment-count",
					headers: {
						"Authorization": `Bearer ${this.token}`,
						"Content-Type": "application/json",
						"Origin": "https://www.gululu.world",
						"Referer": "https://www.gululu.world/"
					},
					data: JSON.stringify(paragraphIds),
					onload: (response) => {
						try {
							const json = JSON.parse(response.responseText);
							resolve(json.data || {});
						} catch (e) {
							resolve({});
						}
					},
					onerror: () => resolve({})
				});
			});
		}

		sendComment(floorId, pid, content) {
			return new Promise((resolve) => {
				if (!this.token) return resolve(null);
				const payload = {
					opusId: this.bookId,
					floorId: floorId,
					content: content
				};
				if (pid) payload.paragraphId = pid;

				GM_xmlhttpRequest({
					method: "POST",
					url: "https://backend.gululu.world/reader/opus/comment/create",
					headers: {
						"Authorization": `Bearer ${this.token}`,
						"Content-Type": "application/json",
						"Origin": "https://www.gululu.world",
						"Referer": "https://www.gululu.world/"
					},
					data: JSON.stringify(payload),
					onload: (response) => {
						try {
							const json = JSON.parse(response.responseText);
							resolve(json);
						} catch (e) {
							resolve(null);
						}
					},
					onerror: () => resolve(null)
				});
			});
		}

            likeComment(commentId) {
                return new Promise((resolve) => {
                    if (!this.token) return resolve(false);
                    GM_xmlhttpRequest({
                        method: "POST",
                        url: "https://backend.gululu.world/reader/opus/comment/like",
                        headers: {
                            "Authorization": `Bearer ${this.token}`,
                            "Content-Type": "application/json",
                            "Origin": "https://www.gululu.world",
                            "platform": "1"
                        },
                        data: JSON.stringify({
                            opusId: this.bookId,
                            id: commentId
                        }),
                        onload: (response) => {
                            try {
                                const json = JSON.parse(response.responseText);
                                // 201 Created 或 200 OK 都视为成功
                                resolve(json.code === 200 || json.code === 201);
                            } catch (e) {
                                resolve(false);
                            }
                        },
                        onerror: () => resolve(false)
                    });
                });
            }

            saveHistory(floorNum) {
                if (!this.token || !this.bookId) return;
                // 简单的防抖：如果进度没变，不发送
                if (this.readProgress === floorNum) return;
                this.readProgress = floorNum;

                GM_xmlhttpRequest({
                    method: "POST",
                    url: "https://backend.gululu.world/history/save",
                    headers: {
                        "Authorization": `Bearer ${this.token}`,
                        "Content-Type": "application/json",
                        "Origin": "https://www.gululu.world",
                        "platform": "1"
                    },
                    data: JSON.stringify({
                        opusId: this.bookId,
                        type: 1,
                        floorSort: floorNum,
                        historyId: this.bookId, // 根据抓包，直接传 opusId
                        save: 1
                    }),
                    onload: () => {}, // 默默保存，不打扰用户
                    onerror: () => {}
                });
            }

            toggleCollect(isCollect) {
                return new Promise((resolve) => {
                    if (!this.token) return resolve(false);
                    GM_xmlhttpRequest({
                        method: "POST",
                        url: "https://backend.gululu.world/opus/collect",
                        headers: {
                            "Authorization": `Bearer ${this.token}`,
                            "Content-Type": "application/json",
                            "Origin": "https://www.gululu.world",
                            "platform": "1"
                        },
                        data: JSON.stringify({
                            opusId: this.bookId,
                            isCollect: isCollect ? 1 : 0
                        }),
                        onload: (response) => {
                            try {
                                const json = JSON.parse(response.responseText);
                                if (json.code === 200) {
                                    this.isCollected = isCollect;
                                    resolve(true);
                                } else {
                                    resolve(false);
                                }
                            } catch (e) {
                                resolve(false);
                            }
                        },
                        onerror: () => resolve(false)
                    });
                });
            }

            replyComment(content, replyCommentId) {
                return new Promise((resolve) => {
                    if (!this.token) return resolve(null);
                    GM_xmlhttpRequest({
                        method: "POST",
                        url: "https://backend.gululu.world/reader/opus/comment/reply-comment",
                        headers: {
                            "Authorization": `Bearer ${this.token}`,
                            "Content-Type": "application/json",
                            "Origin": "https://www.gululu.world",
                            "platform": "1"
                        },
                        data: JSON.stringify({
                            opusId: this.bookId,
                            content: content,
                            replyCommentId: replyCommentId
                        }),
                        onload: (response) => {
                            try {
                                const json = JSON.parse(response.responseText);
                                resolve(json);
                            } catch (e) {
                                resolve(null);
                            }
                        },
                        onerror: () => resolve(null)
                    });
                });
            }

            fetchChildComments(parentId) {
                return new Promise((resolve) => {
                    if (!this.token) return resolve([]);
                    GM_xmlhttpRequest({
                        method: "GET",
                        url: `https://backend.gululu.world/reader/opus/comment/page-children?opusId=${this.bookId}&parentId=${parentId}&current=1&size=1000`,
                        headers: {
                            "Authorization": `Bearer ${this.token}`,
                            "Origin": "https://www.gululu.world",
                            "platform": "1"
                        },
                        onload: (response) => {
                            try {
                                const json = JSON.parse(response.responseText);
                                resolve(json.data ? json.data.records : []);
                            } catch (e) {
                                resolve([]);
                            }
                        },
                        onerror: () => resolve([])
                    });
                });
            }

		fetchFloors(floorIds) {
			return new Promise((resolve) => {
				if (!this.token) return resolve(null);
				GM_xmlhttpRequest({
					method: "POST",
					url: "https://backend.gululu.world/reader/floor/content-by-ids",
					headers: {
						"Authorization": `Bearer ${this.token}`,
						"Content-Type": "application/json",
						"Origin": "https://www.gululu.world",
						"Referer": "https://www.gululu.world/"
					},
					data: JSON.stringify(floorIds),
					onload: function(response) {
						try {
							const json = JSON.parse(response.responseText);
							resolve(json.data);
						} catch (e) {
							resolve(null);
						}
					},
					onerror: function(e) {
						resolve(null);
					}
				});
			});
		}

		fetchHotSearch() {
			return new Promise((resolve) => {
				GM_xmlhttpRequest({
					method: "GET",
					url: "https://backend.gululu.world/search/hot-week",
					headers: {
						"Authorization": `Bearer ${this.token}`,
						"Origin": "https://www.gululu.world",
						"Referer": "https://www.gululu.world/"
					},
					onload: (response) => {
						try {
							const json = JSON.parse(response.responseText);
							if (Array.isArray(json)) resolve(json);
							else if (json.data && Array.isArray(json.data)) resolve(json
								.data);
							else resolve([]);
						} catch (e) {
							resolve([]);
						}
					},
					onerror: () => resolve([])
				});
			});
		}

        fetchSearchHistory() {
            return new Promise((resolve) => {
                if (!this.token) return resolve([]);
                GM_xmlhttpRequest({
                    method: "GET",
                    url: "https://backend.gululu.world/search/history",
                    headers: { "Authorization": `Bearer ${this.token}`, "Origin": "https://www.gululu.world", "Referer": "https://www.gululu.world/" },
                    onload: (response) => {
                        try {
                            const json = JSON.parse(response.responseText);
                            // 兼容直接返回数组的情况
                            if (Array.isArray(json)) resolve(json);
                            else if (json.data && Array.isArray(json.data)) resolve(json.data);
                            else resolve([]);
                        } catch(e) { resolve([]); }
                    },
                    onerror: () => resolve([])
                });
            });
        }

		searchGeneral(keyword, type, page = 1) {
			return new Promise((resolve) => {
				if (!this.token) return resolve(null);
				const encodedKey = encodeURIComponent(keyword);
				GM_xmlhttpRequest({
					method: "GET",
					url: `https://backend.gululu.world/search/generalPageV2?type=${type}&key=${encodedKey}&page=${page}`,
					headers: {
						"Authorization": `Bearer ${this.token}`,
						"Origin": "https://www.gululu.world",
						"Referer": "https://www.gululu.world/"
					},
					onload: (response) => {
						try {
							const json = JSON.parse(response.responseText);
							resolve(json.data);
						} catch (e) {
							resolve(null);
						}
					},
					onerror: () => resolve(null)
				});
			});
		}

            // 用户搜索
            searchUser(keyword) {
                return new Promise((resolve) => {
                    if (!this.token) return resolve([]);
                    GM_xmlhttpRequest({
                        method: "POST",
                        url: "https://backend.gululu.world/search/opus-author",
                        headers: { "Authorization": `Bearer ${this.token}`, "Content-Type": "application/json", "Origin": "https://www.gululu.world", "Referer": "https://www.gululu.world/" },
                        data: JSON.stringify({ text: keyword }),
                        onload: (response) => {
                            try {
                                const json = JSON.parse(response.responseText);
                                resolve(json.searchAuthorRespList || []);
                            } catch(e) { resolve([]); }
                        },
                        onerror: () => resolve([])
                    });
                });
            }

            // 获取新人榜 (无分页)
            fetchNewcomerRank() {
                return new Promise((resolve) => {
                    GM_xmlhttpRequest({
                        method: "GET",
                        url: "https://backend.gululu.world/opus/hot-new",
                        headers: { "Authorization": `Bearer ${this.token}`, "Origin": "https://www.gululu.world", "Referer": "https://www.gululu.world/" },
                        onload: (response) => {
                            try {
                                const json = JSON.parse(response.responseText);
                                resolve(json.data || []);
                            } catch(e) { resolve([]); }
                        },
                        onerror: () => resolve([])
                    });
                });
            }

            // 获取通用榜单 (sort: 0=浏览最高, 1=最新更新, 2=最新发布)
            fetchRankList(sort, page = 1) {
                return new Promise((resolve) => {
                    GM_xmlhttpRequest({
                        method: "GET",
                        url: `https://backend.gululu.world/opus/list-sort?pageNum=${page}&pageSize=20&isAsc=asc&sort=${sort}`,
                        headers: { "Authorization": `Bearer ${this.token}`, "Origin": "https://www.gululu.world", "Referer": "https://www.gululu.world/" },
                        onload: (response) => {
                            try {
                                const json = JSON.parse(response.responseText);
                                resolve(json.rows || []);
                            } catch(e) { resolve([]); }
                        },
                        onerror: () => resolve([])
                    });
                });
            }

            clearSearchHistory() {
                return new Promise((resolve) => {
                    if (!this.token) return resolve(false);
                    GM_xmlhttpRequest({
                        method: "POST",
                        url: "https://backend.gululu.world/search/delete",
                        headers: { "Authorization": `Bearer ${this.token}`, "Origin": "https://www.gululu.world", "Referer": "https://www.gululu.world/" },
                        onload: (response) => {
                            try {
                                const json = JSON.parse(response.responseText);
                                resolve(json.code === 200);
                            } catch(e) { resolve(false); }
                        },
                        onerror: () => resolve(false)
                    });
                });
            }

            // 获取书架 (分页)
            fetchBookshelf(page = 1) {
                return new Promise((resolve) => {
                    if (!this.token) return resolve([]);
                    GM_xmlhttpRequest({
                        method: "GET",
                        url: `https://backend.gululu.world/bookshelf/get-book?pageNum=${page}&pageSize=20&sort=1`,
                        headers: {
                            "Authorization": `Bearer ${this.token}`,
                            "Origin": "https://www.gululu.world",
                            "Referer": "https://www.gululu.world/",
                            "platform": "1"
                        },
                        onload: (response) => {
                            try {
                                const json = JSON.parse(response.responseText);
                                resolve(json.code === 200 ? json.data : []);
                            } catch(e) { resolve([]); }
                        },
                        onerror: () => resolve([])
                    });
                });
            }

            // 获取我的作品
            fetchMyWorks() {
                return new Promise((resolve) => {
                    if (!this.token) return resolve([]);
                    GM_xmlhttpRequest({
                        method: "GET",
                        url: "https://backend.gululu.world/app-user/select-user",
                        headers: {
                            "Authorization": `Bearer ${this.token}`,
                            "Origin": "https://www.gululu.world",
                            "Referer": "https://www.gululu.world/",
                            "platform": "1"
                        },
                        onload: (response) => {
                            try {
                                const json = JSON.parse(response.responseText);
                                resolve(Array.isArray(json) ? json : []);
                            } catch(e) { resolve([]); }
                        },
                        onerror: () => resolve([])
                    });
                });
            }

            // 获取消息未读数
            fetchMessageCount() {
                return new Promise((resolve) => {
                    if (!this.token) return resolve({});
                    GM_xmlhttpRequest({
                        method: "GET",
                        url: "https://backend.gululu.world/message/push-get-all",
                        headers: { "Authorization": `Bearer ${this.token}`, "Origin": "https://www.gululu.world" },
                        onload: (res) => {
                            try { resolve(JSON.parse(res.responseText).data || {}); }
                            catch(e) { resolve({}); }
                        },
                        onerror: () => resolve({})
                    });
                });
            }

            // 获取消息列表 (type: 1=赞, 2=回复, 0=系统)
            fetchMessages(type) {
                return new Promise((resolve) => {
                    if (!this.token) return resolve([]);
                    GM_xmlhttpRequest({
                        method: "GET",
                        url: `https://backend.gululu.world/message/push-get-one?type=${type}`,
                        headers: { "Authorization": `Bearer ${this.token}`, "Origin": "https://www.gululu.world" },
                        onload: (res) => {
                            try { resolve(JSON.parse(res.responseText).data || []); }
                            catch(e) { resolve([]); }
                        },
                        onerror: () => resolve([])
                    });
                });
            }

            // 获取用户信息
            fetchUserInfo() {
                return new Promise((resolve) => {
                    if (!this.token) return resolve(null);
                    GM_xmlhttpRequest({
                        method: "GET",
                        url: "https://backend.gululu.world/app-user/list-userinfo",
                        headers: {
                            "Authorization": `Bearer ${this.token}`,
                            "Origin": "https://www.gululu.world",
                            "Referer": "https://www.gululu.world/",
                            "platform": "1"
                        },
                        onload: (response) => {
                            try {
                                const json = JSON.parse(response.responseText);
                                if (json.code === 200 && json.data) {
                                    this.currentUser = json.data;
                                    localStorage.setItem('gululu_user_cache', JSON.stringify(this.currentUser));
                                    resolve(this.currentUser);
                                } else {
                                    console.error("获取用户信息失败:", json);
                                    resolve(null);
                                }
                            } catch(e) {
                                console.error("解析用户信息失败:", e);
                                resolve(null);
                            }
                        },
                        onerror: (e) => {
                            console.error("请求用户信息网络错误:", e);
                            resolve(null);
                        }
                    });
                });
            }

            // 密码登录
            loginByPass(phone, pass) {
                return new Promise(resolve => {
                    GM_xmlhttpRequest({
                        method: "POST",
                        url: "https://backend.gululu.world/login/phone-passLogin",
                        headers: {
                            "Content-Type": "application/json",
                            "Origin": "https://www.gululu.world",
                            "Referer": "https://www.gululu.world/",
                            "platform": "1" // 补全平台标识
                        },
                        data: JSON.stringify({ phone, pass }),
                        onload: (res) => resolve(JSON.parse(res.responseText)),
                        onerror: () => resolve({ code: 500, msg: "网络错误" })
                    });
                });
            }

            // 发送验证码
            sendSmsCode(phone) {
                return new Promise(resolve => {
                    GM_xmlhttpRequest({
                        method: "POST",
                        url: "https://backend.gululu.world/readlogin/send-app-code",
                        headers: {
                            "Content-Type": "application/json",
                            "Origin": "https://www.gululu.world",
                            "Referer": "https://www.gululu.world/",
                            "platform": "1"
                        },
                        data: JSON.stringify({ phone }),
                        onload: (res) => resolve(JSON.parse(res.responseText)),
                        onerror: () => resolve({ code: 500, msg: "网络错误" })
                    });
                });
            }

            // 验证码登录
            loginBySms(phone, smsCode) {
                return new Promise(resolve => {
                    GM_xmlhttpRequest({
                        method: "POST",
                        url: "https://backend.gululu.world/readlogin/phone",
                        headers: {
                            "Content-Type": "application/json",
                            "Origin": "https://www.gululu.world",
                            "Referer": "https://www.gululu.world/",
                            "platform": "1"
                        },
                        data: JSON.stringify({ phone, smsCode }),
                        onload: (res) => resolve(JSON.parse(res.responseText)),
                        onerror: () => resolve({ code: 500, msg: "网络错误" })
                    });
                });
            }
        }

	// ==========================================
	// 3. UI (阅读页)
	// ==========================================
	class MobileUI {
		constructor(client) {
			this.client = client;
			this.root = null;
			this.container = null;
			this.parser = new DOMParser();
			this.currentBgUrl = null;
			this.bgTimer = null;
			this.ticking = false;
            this.isJumping = false; // 跳转锁
            this.renderGeneration = 0; // 渲染代数，用于废弃过期的请求
		}

        init(initialFloors) {
            this.initBgLayer();
            this.initCommentDrawer();
            this.initFloatingBtn();
            this.client.fetchUserInfo(); // 替换原有的 scrapeUserInfo

            this.root = document.createElement('div');
			this.root.id = 'g-mobile-app';
			this.root.innerHTML = `
                <div class="gm-navbar">
                    <div class="gm-nav-btn" id="gm-collect" style="color:${this.client.isCollected ? '#0984e3' : '#b2bec3'}">
                        <svg viewBox="0 0 24 24" fill="currentColor" style="width:40px;height:40px"><path d="M4 6H2v14c0 1.1.9 2 2 2h14v-2H4V6zm16-4H8c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V4c0-1.1-.9-2-2-2zm0 14H8V4h12v12zM10 9h8v2h-8zm0 3h4v2h-4zm0-6h8v2h-8z"></path></svg>
                    </div>
                    <div class="gm-nav-title">${this.client.bookName}</div>
                    <div class="gm-nav-btn" id="gm-jump-toggle">⛶</div>
                </div>
                <div class="gm-content" id="gm-scroll-area">
                    <div class="gm-loader" id="gm-loader-top">正在加载上一页...</div>
                    <div id="gm-list-container"></div>
                    <div class="gm-loader" id="gm-loader-bottom">正在加载下一页...</div>
                </div>
            `;
			document.body.appendChild(this.root);
			this.container = this.root.querySelector('#gm-list-container');

			this.renderFloors(initialFloors, 'append');
			this.bindEvents();
			this.initImageObserver();
            this.checkReadProgress();
		}

        checkReadProgress() {
            // 如果有阅读进度，且进度不在当前加载的范围内（比如刚打开是在第一页，但进度在第100页）
            if (this.client.readProgress > 20 && !this.client.floorMap.has(this.client.readProgress)) {
                // 简单的 Confirm 提示，或者可以用自定义 Modal 优化体验
                if(confirm(`检测到上次阅读到 ${this.client.readProgress} 层，是否跳转？`)) {
                    this.jumpToFloor(this.client.readProgress);
                }
            }
        }

		initBgLayer() {
			if (!document.getElementById('gm-bg-layer')) {
				const layer = document.createElement('div');
				layer.id = 'gm-bg-layer';
				document.body.appendChild(layer);
				const backdrop = document.createElement('div');
				backdrop.id = 'gm-bg-backdrop';
				document.body.appendChild(backdrop);
			}
		}

		renderFloors(floorsData, direction) {
			if (!floorsData || floorsData.length === 0) return;

			floorsData.sort((a, b) => a.floorNum - b.floorNum);
			const fragment = document.createDocumentFragment();
			const pidsToFetch = [];

			floorsData.forEach(floor => {
				if (this.client.loadedFloors.has(floor.floorNum)) return;

				this.client.loadedFloors.add(floor.floorNum);
				this.client.minLoaded = Math.min(this.client.minLoaded, floor.floorNum);
				this.client.maxLoaded = Math.max(this.client.maxLoaded, floor.floorNum);

				const el = document.createElement('div');
				el.className = 'gm-floor';
				el.dataset.floorNum = floor.floorNum;

				let rawHtml = '';
				if (floor.paragraphContents) {
					floor.paragraphContents.forEach(p => {
						if (p.id) pidsToFetch.push(p.id);
					});
					rawHtml = floor.paragraphContents.map(p => this.jsonToHtml(p)).join('');
				}

				const processedHtml = this.processContent(rawHtml);
				let author = floor.author;
				if (!author && floor.authorId === this.client.bookAuthor?.userId) {
					author = this.client.bookAuthor;
				}

				const avatarUrl = author?.headPic || '';
				const authorName = author?.nickName || 'Unknown';
				const time = floor.createTime || '';
				const realFloorId = this.client.floorMap.get(floor.floorNum) || floor.floorId || floor
					.id;

				el.innerHTML = `
                    <div class="gm-floor-header">
                        <div class="gm-user-info">
                            ${avatarUrl ? `<img src="${avatarUrl}" class="gm-avatar">` : ''}
                            <div>
                                <div class="gm-username">${authorName}</div>
                                <div class="gm-floor-meta">${time}</div>
                            </div>
                        </div>
                        <div class="gm-floor-right">
                            <div class="gm-floor-id">#${floor.floorNum}</div>
                        </div>
                    </div>
                    <div class="gm-floor-body">${processedHtml}</div>
                    <div class="gm-floor-footer" style="display:flex;justify-content:flex-end;margin-top:30px;padding-top:20px;border-top:1px solid rgba(0,0,0,0.05)">
                        <div class="gm-floor-cmt-btn" data-fid="${realFloorId}">
                            ${floor.commentCount || '评论'}
                        </div>
                    </div>
                `;
				fragment.appendChild(el);
			});

			if (direction === 'append') {
				this.container.appendChild(fragment);
			} else {
				const scrollArea = this.root.querySelector('#gm-scroll-area');

                // 1. 临时禁用平滑滚动，确保瞬间修正位置，防止视觉抖动
                const originalBehavior = scrollArea.style.scrollBehavior;
                scrollArea.style.scrollBehavior = 'auto';

                // 2. 关键：在插入前记录旧的高度和位置
				const oldHeight = scrollArea.scrollHeight;
				const oldTop = scrollArea.scrollTop;

                // 3. 插入新内容
				this.container.insertBefore(fragment, this.container.firstChild);

                // 4. 修正滚动条位置：新位置 = 旧位置 + (新高度 - 旧高度)
                // 这样可以保持视口相对于旧内容的相对位置不变，视觉上就像"静止"一样
				const newHeight = scrollArea.scrollHeight;
				scrollArea.scrollTop = oldTop + (newHeight - oldHeight);

                // 5. 恢复平滑滚动
                scrollArea.style.scrollBehavior = originalBehavior;
			}
			this.updateBackground();

			if (pidsToFetch.length > 0) {
				this.client.fetchCommentCounts(pidsToFetch).then(counts => {
					Object.entries(counts).forEach(([pid, count]) => {
						if (parseInt(count) > 0) {
							const btn = this.root.querySelector(
								`.gm-comment-btn[data-pid="${pid}"]`);
							if (btn) {
								const numEl = btn.querySelector('.gm-comment-num');
								if (numEl) numEl.textContent = count;
								btn.classList.add('has-comment');
							}
						}
					});
				});
			}
		}

		jsonToHtml(p) {
			if (p.type === 'image') return `<img src="${p.attrs.src}" loading="lazy">`;
			if (p.type === 'paragraph' || p.type === 'heading') {
				const tag = p.type === 'heading' ? `h${p.attrs.level || 1}` : 'p';
				let contentHtml = '';
				let fullText = '';

				if (p.content && p.content.length > 0) {
					p.content.forEach(span => {
						if (span.type === 'text') {
							let style = '';
							let text = span.text;
                            let isTransparent = false;

							if (span.marks) {
								span.marks.forEach(m => {
									if (m.type === 'bold') style += 'font-weight:bold;';
									if (m.type === 'textStyle' && m.attrs.color) {
                                        // 检测透明色
                                        if (m.attrs.color === 'transparent' || m.attrs.color.replace(/\s/g,'') === 'rgba(0,0,0,0)') {
                                            isTransparent = true;
                                        }
                                        // 过滤纯黑色，使其跟随主题色
                                        const c = m.attrs.color.replace(/\s/g, '');
                                        if (c !== 'rgb(0,0,0)' && c !== '#000000' && c !== '#000') {
                                            style += `color:${m.attrs.color};`;
                                        }
                                    }
								});
							}

                            // 只有非透明文本才计入有效内容 (用于判断是否显示评论气泡)
                            if (!isTransparent) {
							    fullText += text;
                            }

							text = text.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g,
								"&gt;");
							contentHtml += style ? `<span style="${style}">${text}</span>` : text;
						} else if (span.type === 'hardBreak') contentHtml += '<br>';
					});
				}

                // 隐藏空行：如果内容为空（且不是超级空行），则不渲染
                // 原生界面行为：空段落高度为0或不显示，我们之前强制加了<br>导致空行显现，现在去掉
                if (!contentHtml) return '';

				let pHtml = `<${tag} data-pid="${p.id || ''}">${contentHtml}`;
				const hasMeaningfulContent = /[a-zA-Z0-9\u4e00-\u9fa5]/.test(fullText);

				if (p.id && hasMeaningfulContent) {
					pHtml += `
                        <span class="gm-comment-btn" data-pid="${p.id}">
                            <svg viewBox="0 0 23 16" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M15.04 1H7.96a6.94 6.94 0 0 0-4.922 2.05A7.015 7.015 0 0 0 1 7.995a6.981 6.981 0 0 0 1.828 4.724l-1.481 2.053a.102.102 0 0 0 .046.152.1.1 0 0 0 .06.004l3.145-.801A6.872 6.872 0 0 0 7.959 15h7.082a6.94 6.94 0 0 0 4.92-2.05A7.015 7.015 0 0 0 22 8.005a7.028 7.028 0 0 0-2.036-4.952A6.928 6.928 0 0 0 15.04 1Z"></path></svg>
                            <span class="gm-comment-num"></span>
                        </span>`;
				}
				pHtml += `</${tag}>`;
				return pHtml;
			}
			if (p.type === 'jumpFloorComponent') {
				const text = p.attrs.description || '跳转到指定楼层';
				const targetFloor = p.attrs.floorNumber;
				return `<button class="gm-jump-btn" data-target="${targetFloor}">${text}</button>`;
			}
			return '';
		}

		processContent(htmlStr) {
			const doc = this.parser.parseFromString(htmlStr, 'text/html');
			const selectors = ['div[class*="RichTextParagraph_menuBtn"]',
				'span[class*="RichTextParagraph_inlineCommentNumber"]'
			];
			selectors.forEach(s => doc.querySelectorAll(s).forEach(el => el.remove()));

			doc.querySelectorAll('img').forEach(img => {
				img.removeAttribute('resize');
				img.style = "";
				if (!img.src && img.dataset.src) img.src = img.dataset.src;
			});

            // 净化硬编码的黑色字体
            doc.querySelectorAll('[style*="color"]').forEach(el => {
                if (el.style.color === 'rgb(0, 0, 0)' || el.style.color === '#000000' || el.style.color === 'black') {
                    el.style.color = '';
                }
            });

            // --- 引用解析 (移植自主脚本) ---
            // 1. 块级引用 (跨节点检测)
            const children = Array.from(doc.body.children);
            for (let i = 0; i < children.length; i++) {
                const node = children[i];
                if (!node.parentNode) continue;
                const text = node.textContent || "";
                const startMatch = text.match(/(?:&lt;|<)引用\s+id="(\d+)"\s+floor="(\d+)"(?:&gt;|>)/);
                if (startMatch) {
                    const bid = startMatch[1];
                    const fid = startMatch[2];
                    const next1 = node.nextElementSibling;
                    const next2 = next1 ? next1.nextElementSibling : null;
                    if (next1 && next2) {
                        const endText = next2.textContent || "";
                        if (endText.includes('</引用>') || endText.includes('&lt;/引用&gt;')) {
                            const contentHtml = next1.innerHTML;
                            const quoteDiv = document.createElement('div');
                            quoteDiv.className = 'g-quote-box';
                            quoteDiv.dataset.bid = bid;
                            quoteDiv.dataset.fid = fid;
                            quoteDiv.innerHTML = `
                                <div class="g-quote-icon">❝</div>
                                <div class="g-quote-content">${contentHtml}</div>
                                <div class="g-quote-info">跳转至 #${fid}</div>
                            `;
                            node.replaceWith(quoteDiv);
                            next1.remove();
                            next2.remove();
                            continue;
                        }
                    }
                }
            }

            // 2. 内联引用 (正则替换)
            let html = doc.body.innerHTML;
            const inlineRegex = /(?:&lt;|<)引用\s+id="(\d+)"\s+floor="(\d+)"(?:&gt;|>)([\s\S]*?)(?:&lt;|<)\/引用(?:&gt;|>)/gi;
            if (html.match(inlineRegex)) {
                html = html.replace(inlineRegex, (match, bid, fid, content) => {
                    return `<div class="g-quote-box" data-bid="${bid}" data-fid="${fid}"><div class="g-quote-icon">❝</div><div class="g-quote-content">${content}</div><div class="g-quote-info">跳转至 #${fid}</div></div>`;
                });
                doc.body.innerHTML = html;
            }

			doc.querySelectorAll('[data-bg-url]').forEach(el => el.classList.add('gm-bg-trigger'));
			doc.querySelectorAll('[data-bg-clear]').forEach(el => {
				el.classList.add('gm-bg-trigger');
				el.setAttribute('data-bg-url', 'CLEAR');
			});

			const walker = document.createTreeWalker(doc.body, NodeFilter.SHOW_ALL, null, false);
			let currentNode, pendingBgUrl = null;

			while (currentNode = walker.nextNode()) {
				if (currentNode.nodeType === Node.TEXT_NODE) {
					const text = currentNode.textContent;
					const musicMatch = text.match(/(?:<|&lt;)music:(.*?)(?:>|&gt;)/i);
					if (musicMatch && musicMatch[1]) {
						const url = musicMatch[1].trim();
						const span = document.createElement('span');
						span.className = 'g-music-key';
						span.dataset.url = url;
						span.textContent = ' 点击播放';
						if (currentNode.parentNode) currentNode.parentNode.replaceChild(span, currentNode);
						continue;
					}
					const inlineMatch = text.match(/(?:<|&lt;)背景(?:>|&gt;)(?:[\s\S]*?src="([^"]+)")?/i);
					if (inlineMatch && inlineMatch[1]) {
						const p = currentNode.parentElement;
						if (p) {
							p.classList.add('gm-bg-trigger');
							p.setAttribute('data-bg-url', inlineMatch[1]);
						}
					} else if (/(?:<|&lt;)背景(?:>|&gt;)/.test(text)) pendingBgUrl = 'WAITING_FOR_IMG';
					else if (/(?:<|&lt;)(?:移除背景|清除背景)(?:>|&gt;)/.test(text)) {
						const p = currentNode.parentElement;
						if (p) {
							p.classList.add('gm-bg-trigger');
							p.setAttribute('data-bg-url', 'CLEAR');
						}
						pendingBgUrl = null;
					}
				} else if (currentNode.nodeType === Node.ELEMENT_NODE && currentNode.tagName === 'IMG') {
					if (pendingBgUrl === 'WAITING_FOR_IMG') {
						currentNode.classList.add('gm-bg-trigger');
						const src = currentNode.getAttribute('src') || currentNode.getAttribute('data-src');
						if (src) currentNode.setAttribute('data-bg-url', src);
						pendingBgUrl = null;
					}
				}
			}
			return doc.body.innerHTML;
		}

		initImageObserver() {
			const container = this.root.querySelector('#gm-list-container');
			const observer = new MutationObserver((mutations) => {
				let needUpdate = false;
				mutations.forEach(m => {
					if (m.type === 'attributes' && m.attributeName === 'src') {
						const img = m.target;
						if (img.classList.contains('gm-bg-trigger') && img.src) {
							img.setAttribute('data-bg-url', img.src);
							needUpdate = true;
						}
					}
					if (m.type === 'childList') needUpdate = true;
				});
				if (needUpdate) this.updateBackground();
			});
			observer.observe(container, {
				attributes: true,
				childList: true,
				subtree: true,
				attributeFilter: ['src']
			});
		}

		initFloatingBtn() {
			const btn = document.createElement('div');
			btn.id = 'gm-comment-toggle';
			btn.innerText = '💬';
			document.body.appendChild(btn);

			btn.onclick = () => {
				const isActive = this.root.classList.contains('g-show-comments');
				if (isActive) {
					this.root.classList.remove('g-show-comments');
					btn.classList.remove('active');
				} else {
					this.root.classList.add('g-show-comments');
					btn.classList.add('active');
				}
			};

			// 1.5 返回首页
			const homeBtn = document.createElement('div');
			homeBtn.id = 'gm-home-btn';
			homeBtn.innerText = '🏠';
			document.body.appendChild(homeBtn);

			// 注入模态框 HTML
			if (!document.getElementById('gm-home-modal')) {
				const modalHtml = `
                        <div class="gm-modal-mask" id="gm-home-modal">
                            <div class="gm-modal">
                                <div class="gm-modal-title">返回首页</div>
                                <div class="gm-modal-desc">确定要退出阅读并返回首页吗？</div>
                                <div class="gm-modal-btns">
                                    <div class="gm-modal-btn gm-btn-cancel">取消</div>
                                    <div class="gm-modal-btn gm-btn-confirm">确定</div>
                                </div>
                            </div>
                        </div>
                    `;
				const div = document.createElement('div');
				div.innerHTML = modalHtml;
				document.body.appendChild(div.firstElementChild);
			}

			const modal = document.getElementById('gm-home-modal');

			homeBtn.onclick = () => modal.classList.add('active');

			modal.querySelector('.gm-btn-cancel').onclick = () => modal.classList.remove('active');

			modal.querySelector('.gm-btn-confirm').onclick = () => {
				window.location.href = '/';
			};

			// 2. 快捷菜单 (移植主脚本功能)

			const menuBtn = document.createElement('div');
			menuBtn.id = 'gm-menu-toggle';
			menuBtn.innerText = '⚙️';
			document.body.appendChild(menuBtn);

			const menuList = document.createElement('div');
			menuList.className = 'gm-menu-list';

            const scalePercent = Math.round(config.mobileScale * 100);
			menuList.innerHTML = `
                <div class="gm-menu-item" id="gm-act-scale"><span>UI缩放: ${scalePercent}%</span> 📐</div>
                <div class="gm-menu-item" id="gm-act-fullscreen"><span>全屏模式</span> ⛶</div>
                <div class="gm-menu-item" id="gm-act-stop"><span>停止音乐</span> ⏹️</div>
                <div class="gm-menu-item" id="gm-act-dice"><span>十连骰子</span> 🎲</div>
                <div class="gm-menu-item" id="gm-act-setting"><span>配置面板</span> 🔧</div>
                <div class="gm-menu-item" id="gm-act-exit" style="color:#ff4757"><span>退出手机模式</span> 🚪</div>
            `;
			document.body.appendChild(menuList);

			menuBtn.onclick = () => {
				const isActive = menuList.classList.contains('active');
				if (isActive) {
					menuList.classList.remove('active');
					menuBtn.classList.remove('active');
					menuBtn.innerText = '⚙️';
				} else {
					menuList.classList.add('active');
					menuBtn.classList.add('active');
					menuBtn.innerText = '✕';
				}
			};

			const callHelper = (method) => {
				const targetWindow = typeof unsafeWindow !== 'undefined' ? unsafeWindow : window;

                // 增加重试机制 (最多等待 3 秒)
                let attempts = 15;
                const tryExecute = () => {
                    if (targetWindow.GululuHelper && targetWindow.GululuHelper[method]) {
                        targetWindow.GululuHelper[method]();
                        menuList.classList.remove('active');
                        menuBtn.classList.remove('active');
                        menuBtn.innerText = '⚙️';
                    } else {
                        if (attempts > 0) {
                            attempts--;
                            setTimeout(tryExecute, 200);
                        } else {
                            console.error("GululuHelper not found on", targetWindow);
                            alert("主脚本接口未就绪或加载过慢！\n请确保“Gululu沉浸助手主文件”已启用。");
                        }
                    }
                };

                tryExecute();
			};

			menuList.querySelector('#gm-act-stop').onclick = () => callHelper('stopMusic');
			menuList.querySelector('#gm-act-dice').onclick = () => callHelper('revealNext10');
			menuList.querySelector('#gm-act-setting').onclick = () => callHelper('toggleSettings');

            // 全屏切换
            menuList.querySelector('#gm-act-fullscreen').onclick = () => {
                if (!document.fullscreenElement) {
                    sessionStorage.setItem('gm_is_fullscreen', '1'); // 标记意图
                    document.documentElement.requestFullscreen().catch(e => alert("全屏失败: " + e.message));
                } else {
                    sessionStorage.removeItem('gm_is_fullscreen'); // 清除意图
                    if (document.exitFullscreen) document.exitFullscreen();
                }
                menuList.classList.remove('active');
                menuBtn.classList.remove('active');
                menuBtn.innerText = '⚙️';
            };

            // 退出逻辑
            // 1. 注入退出确认框
            if (!document.getElementById('gm-exit-modal')) {
                const modalHtml = `
                    <div class="gm-modal-mask" id="gm-exit-modal">
                        <div class="gm-modal">
                            <div class="gm-modal-title">退出手机模式</div>
                            <div class="gm-modal-desc">确定要切换回桌面版网页吗？</div>
                            <div class="gm-modal-btns">
                                <div class="gm-modal-btn gm-btn-cancel">取消</div>
                                <div class="gm-modal-btn gm-btn-confirm" style="background:#ff4757;box-shadow:0 5px 15px rgba(255, 71, 87, 0.3)">退出</div>
                            </div>
                        </div>
                    </div>
                `;
                const div = document.createElement('div');
                div.innerHTML = modalHtml;
                document.body.appendChild(div.firstElementChild);
            }

            const exitModal = document.getElementById('gm-exit-modal');

            menuList.querySelector('#gm-act-exit').onclick = () => {
                menuList.classList.remove('active');
                menuBtn.classList.remove('active');
                menuBtn.innerText = '⚙️';
                exitModal.classList.add('active');
            };

            exitModal.querySelector('.gm-btn-cancel').onclick = () => exitModal.classList.remove('active');

            exitModal.querySelector('.gm-btn-confirm').onclick = () => {
                config.mobileModeEnabled = false;
                localStorage.setItem('gululu_global_config_v6', JSON.stringify(config));
                location.reload();
            };

            // 缩放逻辑
            menuList.querySelector('#gm-act-scale').onclick = (e) => {
                const scales = [0.25, 0.5, 0.75, 1.0, 1.25, 1.5];
                let idx = scales.indexOf(config.mobileScale);
                idx = (idx + 1) % scales.length;
                config.mobileScale = scales[idx];

                // 应用
                document.documentElement.style.setProperty('--gm-scale', config.mobileScale);
                localStorage.setItem('gululu_global_config_v6', JSON.stringify(config));

                // 更新按钮文本
                const item = e.currentTarget;
                item.innerHTML = `<span>UI缩放: ${config.mobileScale * 100}%</span> 📐`;
            };
		}

		initCommentDrawer() {
			const drawer = document.createElement('div');
			drawer.id = 'gm-cmt-drawer';
			drawer.innerHTML = `
                <div class="gm-cmt-header">
                    <span>评论</span>
                    <span id="gm-cmt-close" class="gm-cmt-close-btn">✕</span>
                </div>
                <div class="gm-cmt-list" id="gm-cmt-list">
                    <div style="text-align:center;color:#999;padding:50px">加载中...</div>
                </div>
                <div class="gm-cmt-footer">
                    <div class="gm-cmt-input-area">
                        <div id="gm-reply-cancel-btn" style="display:none; align-items:center; padding-right: 10px; font-size: 40px; color: #999; cursor: pointer;">✕</div>
                        <textarea class="gm-cmt-input" id="gm-cmt-input" placeholder="说点什么..." rows="1"></textarea>
                        <button class="gm-cmt-send" id="gm-cmt-send">发送</button>
                    </div>
                </div>
            `;
			document.body.appendChild(drawer);

			const mask = document.createElement('div');
			mask.id = 'gm-cmt-mask';
			document.body.appendChild(mask);

            // 状态变量
            this.replyTarget = null; // { cid, rootId, uname }

			const close = () => {
				drawer.classList.remove('active');
				mask.classList.remove('active');
				document.getElementById('gm-cmt-input').blur();
                this.cancelReplyMode();
			};
			mask.onclick = close;
			drawer.querySelector('#gm-cmt-close').onclick = close;

            // 事件委托：点赞、回复、展开子评论
            const cmtList = document.getElementById('gm-cmt-list');
            cmtList.addEventListener('click', async (e) => {
                // 1. 点赞
                const likeBtn = e.target.closest('.gm-cmt-like-btn');
                if (likeBtn) {
                    const cid = likeBtn.dataset.cid;
                    if (!cid) return;
                    if (likeBtn.dataset.liked === "true" || likeBtn.classList.contains('liked')) return;
                    if (likeBtn.dataset.liking) return;

                    likeBtn.dataset.liking = "true";
                    likeBtn.classList.add('liked');

                    const success = await this.client.likeComment(cid);
                    if (success) {
                        const match = likeBtn.innerText.match(/\d+/);
                        if (match) likeBtn.innerHTML = `♥ ${parseInt(match[0]) + 1}`;
                        likeBtn.dataset.liked = "true";
                    } else {
                        likeBtn.classList.remove('liked');
                    }
                    delete likeBtn.dataset.liking;
                }

                // 2. 回复按钮
                const replyBtn = e.target.closest('.gm-cmt-reply-btn');
                if (replyBtn) {
                    const cid = replyBtn.dataset.cid;
                    const uname = replyBtn.dataset.uname;
                    const rootId = replyBtn.dataset.root;
                    this.enterReplyMode(cid, uname, rootId);
                }

                // 3. 展开/收起子评论
                const expandBtn = e.target.closest('.gm-sub-expand-btn');
                if (expandBtn) {
                    const cid = expandBtn.dataset.cid;
                    const action = expandBtn.dataset.action; // 'collapse' or undefined (expand)
                    const subList = document.getElementById(`gm-sub-list-${cid}`);

                    if (action === 'collapse') {
                        subList.classList.remove('active');
                        // 既然收起了，我们需要在外面生成一个"展开"按钮，如果之前没有的话
                        let outerBtn = subList.parentNode.querySelector(`.gm-sub-expand-btn[data-action="expand"]`);
                        if (!outerBtn) {
                            outerBtn = document.createElement('div');
                            outerBtn.className = 'gm-sub-expand-btn';
                            outerBtn.dataset.cid = cid;
                            outerBtn.dataset.action = 'expand';
                            outerBtn.innerText = '查看回复 ▾';
                            subList.parentNode.appendChild(outerBtn);
                        }
                        outerBtn.style.display = 'block';
                    } else {
                        // 展开逻辑
                        if (subList.children.length > 0 && !subList.dataset.autoload) {
                            // 已经加载过，直接显示
                            subList.classList.add('active');
                            expandBtn.style.display = 'none';
                        } else {
                            // 需要加载
                            expandBtn.innerText = "加载中...";
                            const children = await this.client.fetchChildComments(cid);

                            if (children && children.length > 0) {
                                subList.innerHTML = children.map(c => this.renderSubCommentItem(c, cid)).join('');
                                subList.insertAdjacentHTML('beforeend', `<div class="gm-sub-expand-btn" data-action="collapse" data-cid="${cid}" style="margin-top:10px">收起回复</div>`);
                                subList.classList.add('active');
                                expandBtn.style.display = 'none';
                            } else {
                                expandBtn.innerText = "暂无更多回复";
                            }
                        }
                    }
                }
            });

            // 取消回复模式
            document.getElementById('gm-reply-cancel-btn').onclick = () => this.cancelReplyMode();

			const sendBtn = document.getElementById('gm-cmt-send');
			const input = document.getElementById('gm-cmt-input');

            // 自适应高度
            input.addEventListener('input', function() {
                this.style.height = 'auto';
                this.style.height = (this.scrollHeight) + 'px';
            });

			sendBtn.onclick = async () => {
				const content = input.value.trim();
				if (!content) return;

                sendBtn.innerText = '...';

                // 分支：回复评论 vs 发送新评论
                if (this.replyTarget) {
                    // === 回复模式 ===
                    const res = await this.client.replyComment(content, this.replyTarget.cid);
                    sendBtn.innerText = '发送';

                    if (res && res.code === 200) {
                        // 构造假数据插入
                        const fakeSub = {
                            id: Date.now(), // 临时ID
                            content: content,
                            createTime: "刚刚",
                            fromUser: this.client.currentUser,
                            replyUser: { nickName: this.replyTarget.uname }
                        };

                        const rootId = this.replyTarget.rootId;
                        const subList = document.getElementById(`gm-sub-list-${rootId}`);

                        // 确保子评论容器可见
                        subList.classList.add('active');
                        subList.insertAdjacentHTML('beforeend', this.renderSubCommentItem(fakeSub, rootId));

                        input.value = '';
                        input.style.height = 'auto'; // 重置高度
                        this.cancelReplyMode();
                    } else {
                        alert('回复失败: ' + (res ? res.msg : '网络错误'));
                    }
                } else {
                    // === 普通评论模式 ===
                    if (!this.activeCommentTarget) return;
                    const { floorId, pid } = this.activeCommentTarget;

                    const res = await this.client.sendComment(floorId, pid, content);
                    sendBtn.innerText = '发送';

                    if (res && res.code === 200) {
                        const fakeComment = {
                            content: content,
                            createTime: "刚刚",
                            likeCount: 0,
                            fromUser: this.client.currentUser
                        };
                        const list = document.getElementById('gm-cmt-list');
                        if (list.querySelector('div[style*="text-align:center"]')) list.innerHTML = '';
                        list.insertAdjacentHTML('beforeend', this.renderCommentItem(fakeComment));
                        list.scrollTop = list.scrollHeight;
                        input.value = '';
                        input.style.height = 'auto'; // 重置高度

                        // 更新外部计数
                        if (pid) {
                            const btn = this.root.querySelector(`.gm-comment-btn[data-pid="${pid}"]`);
                            if (btn) {
                                const numEl = btn.querySelector('.gm-comment-num');
                                if (numEl) numEl.textContent = (parseInt(numEl.textContent) || 0) + 1;
                                btn.classList.add('has-comment');
                            }
                        } else {
                            const btn = this.root.querySelector(`.gm-floor-cmt-btn[data-fid="${floorId}"]`);
                            if (btn) {
                                const match = btn.textContent.match(/(\d+)/);
                                const count = match ? parseInt(match[1]) : 0;
                                btn.textContent = `💬 ${count + 1}`;
                            }
                        }
                    } else {
                        alert('发送失败: ' + (res ? res.msg : '网络错误'));
                    }
                }
			};
		}

        enterReplyMode(cid, uname, rootId) {
            this.replyTarget = { cid, uname, rootId };
            const cancelBtn = document.getElementById('gm-reply-cancel-btn');
            const input = document.getElementById('gm-cmt-input');

            if(cancelBtn) cancelBtn.style.display = 'flex';
            input.placeholder = `回复 @${uname}...`;
            input.focus();
        }

        cancelReplyMode() {
            this.replyTarget = null;
            const cancelBtn = document.getElementById('gm-reply-cancel-btn');
            const input = document.getElementById('gm-cmt-input');

            if(cancelBtn) cancelBtn.style.display = 'none';
            if(input) input.placeholder = "说点什么...";
        }

		renderCommentItem(c) {
			const user = c.fromUser || c.userInfo || c.user || {};
			const headPic = user.headPic || user.avatar || c.headPic || 'https://www.gululu.world/favicon.ico';
			const nickName = user.nickName || user.nickname || c.nickName || c.nickname || '未知用户';
			const likeCount = c.likeNum || c.likeCount || 0;
            const cid = c.id;
            const isLiked = c.liked === true;
            const childrenNum = c.childrenNum || 0;

            // 默认展开逻辑：如果有子评论，直接显示加载占位符，不显示展开按钮
            const subHtml = childrenNum > 0 ?
                `<div class="gm-sub-cmt-list active" id="gm-sub-list-${cid}" data-autoload="true" data-cid="${cid}">
                    <div style="padding:20px;color:#999;font-size:26px;text-align:center">↻ 正在加载 ${childrenNum} 条回复...</div>
                 </div>`
                : `<div class="gm-sub-cmt-list" id="gm-sub-list-${cid}"></div>`;

			return `
                <div class="gm-cmt-wrapper" data-cid="${cid}">
                    <div class="gm-cmt-item">
                        <img src="${headPic}" class="gm-cmt-avatar">
                        <div style="flex:1">
                            <div style="color:#666;font-size:24px;margin-bottom:8px">${nickName}</div>
                            <div style="display:flex; justify-content:space-between; align-items:flex-start">
                                <div class="gm-cmt-content">${c.content}</div>
                                <div class="gm-cmt-like-btn ${isLiked ? 'liked' : ''}" data-cid="${cid}" data-liked="${isLiked}">
                                    ♥ ${likeCount}
                                </div>
                            </div>
                            <div class="gm-cmt-meta">
                                <span>${c.createTime}</span>
                                <div class="gm-cmt-actions">
                                    <div class="gm-cmt-reply-btn" data-cid="${cid}" data-uname="${nickName}" data-root="${cid}">回复</div>
                                </div>
                            </div>
                        </div>
                    </div>
                    ${subHtml}
                </div>
            `;
		}

        renderSubCommentItem(c, rootId) {
            const user = c.fromUser || {};
            const nickName = user.nickName || '未知用户';
            const replyUser = c.replyUser ? `回复 <span style="color:#6c5ce7">@${c.replyUser.nickName}</span>` : '';

            return `
                <div class="gm-sub-cmt-item">
                    <div style="font-size:26px;color:#666;margin-bottom:5px">
                        <b>${nickName}</b> ${replyUser}
                    </div>
                    <div class="gm-sub-content" style="line-height:1.4">${c.content}</div>
                    <div class="gm-cmt-meta">
                        <span>${c.createTime}</span>
                        <div class="gm-cmt-reply-btn" style="font-size:24px;padding:5px 15px" data-cid="${c.id}" data-uname="${nickName}" data-root="${rootId}">回复</div>
                    </div>
                </div>
            `;
        }

		async jumpToFloor(targetNum) {
			targetNum = parseInt(targetNum);
			if (!this.client.floorMap.has(targetNum)) {
				alert("目标楼层不存在或未加载目录");
				return;
			}

            // 1. 上锁并升级代数 (废弃所有正在进行的 loadMore 请求)
            this.isJumping = true;
            this.renderGeneration++;
            this.client.isLoading = true; // 抢占加载锁

            // 2. 立即重置状态 (防止滚动事件读取旧数据)
            this.client.loadedFloors.clear();
            this.client.minLoaded = Infinity;
            this.client.maxLoaded = -Infinity;

            // 3. 视觉反馈 & 滚动归零
            this.container.innerHTML = '<div style="padding:100px;text-align:center;color:#999;font-size:32px">正在穿越... 🚀</div>';
            const scrollArea = this.root.querySelector('#gm-scroll-area');
            scrollArea.scrollTop = 0;

			const idsToLoad = [];
            // 加载目标层及后续9层（填满屏幕）
			for (let i = 0; i < 10; i++) {
				if (this.client.floorMap.has(targetNum + i)) idsToLoad.push(this.client.floorMap.get(targetNum + i));
			}

			const data = await this.client.fetchFloors(idsToLoad);

            // 4. 渲染新数据
            if (data) {
                this.container.innerHTML = '';
				this.renderFloors(data, 'append');
                scrollArea.scrollTop = 0;
			} else {
                this.container.innerHTML = '<div style="padding:100px;text-align:center;color:#999">加载失败，请重试</div>';
            }

            // 5. 解锁
            this.isJumping = false;
            this.client.isLoading = false;
		}

		async showComments(floorId, pid) {
			this.activeCommentTarget = {
				floorId,
				pid
			};
			const drawer = document.getElementById('gm-cmt-drawer');
			const mask = document.getElementById('gm-cmt-mask');
			const list = document.getElementById('gm-cmt-list');

			drawer.classList.add('active');
			mask.classList.add('active');
			list.innerHTML = '<div style="text-align:center;color:#999;padding:50px">加载中...</div>';

			const comments = await this.client.fetchComments(floorId, pid);
			if (!comments || comments.length === 0) {
				list.innerHTML = '<div style="text-align:center;color:#999;padding:50px">暂无评论</div>';
				return;
			}
			list.innerHTML = comments.map(c => this.renderCommentItem(c)).join('');

            // 自动加载子评论
            list.querySelectorAll('.gm-sub-cmt-list[data-autoload="true"]').forEach(async (el) => {
                const cid = el.dataset.cid;
                const children = await this.client.fetchChildComments(cid);
                if (children && children.length > 0) {
                    el.innerHTML = children.map(c => this.renderSubCommentItem(c, cid)).join('');
                    // 加载完成后添加收起按钮，并移除 autoload 标记防止重复
                    el.insertAdjacentHTML('beforeend', `<div class="gm-sub-expand-btn" data-action="collapse" data-cid="${cid}" style="margin-top:20px;text-align:right">收起回复 ▴</div>`);
                    delete el.dataset.autoload;
                } else {
                    el.innerHTML = '';
                    el.classList.remove('active');
                }
            });
		}

		applyBackground(url) {
			if (this.currentBgUrl === url) return;
			if (!url) return;
			if (this.bgTimer) clearTimeout(this.bgTimer);

			this.currentBgUrl = url;
			const layer = document.getElementById('gm-bg-layer');
			if (!layer) return;

			layer.style.opacity = '0';
			this.bgTimer = setTimeout(() => {
				if (url && url !== 'CLEAR') {
					const img = new Image();
					img.src = url;
					img.onload = () => {
						if (this.currentBgUrl === url) {
							layer.style.backgroundImage = `url("${url}")`;
							layer.style.opacity = '1';
						}
					};
				} else {
					layer.style.backgroundImage = 'none';
				}
			}, 500);
		}

		showToast(msg) {
            let toast = document.getElementById('gm-toast-msg');
            if (!toast) {
                toast = document.createElement('div');
                toast.id = 'gm-toast-msg';
                toast.className = 'gm-toast';
                document.body.appendChild(toast);
            }
            toast.innerText = msg;
            toast.classList.add('active');
            if (this.toastTimer) clearTimeout(this.toastTimer);
            this.toastTimer = setTimeout(() => {
                toast.classList.remove('active');
            }, 2000);
        }

		updateBackground() {
			const triggers = this.root.querySelectorAll('.gm-bg-trigger, .gm-floor[data-bg]');
			if (triggers.length === 0) return;
			const checkLine = window.innerHeight / 2;
			let activeBg = null;

			for (let i = 0; i < triggers.length; i++) {
				const el = triggers[i];
                // ⚡ 修复：跳过被隐藏的元素（例如迷雾锁定的图片），防止它们抢占背景
                if (el.offsetParent === null) continue;

				const rect = el.getBoundingClientRect();
				if (rect.top < checkLine) {
					let url = el.getAttribute('data-bg-url') || el.getAttribute('data-bg');
					if (url && url.length > 4) activeBg = url;
				} else {
					break;
				}
			}
			this.applyBackground(activeBg);
		}

        // 检测当前阅读楼层并保存
        checkActiveFloor() {
            // 我们取屏幕上方 1/3 处作为阅读焦点线
            const focusLine = window.innerHeight / 3;
            const floors = this.root.querySelectorAll('.gm-floor');

            // 倒序查找，找到第一个在该线之上的楼层（或者正好覆盖该线的）
            // 由于是顺序排列，只要找到 rect.bottom > focusLine 的第一个元素即可
            for (let i = 0; i < floors.length; i++) {
                const floor = floors[i];
                const rect = floor.getBoundingClientRect();

                // 如果楼层底部超过了焦点线，说明它正在被阅读（或者它刚开始）
                if (rect.bottom > focusLine) {
                    const num = parseInt(floor.dataset.floorNum);
                    if (num && !isNaN(num)) {
                        this.client.saveHistory(num);
                    }
                    break; // 找到即止
                }
            }
        }

		bindEvents() {
			const scrollArea = this.root.querySelector('#gm-scroll-area');
			const topLoader = this.root.querySelector('#gm-loader-top');
			const bottomLoader = this.root.querySelector('#gm-loader-bottom');

            // 收藏按钮
            const collectBtn = this.root.querySelector('#gm-collect');
            collectBtn.onclick = () => {
                if (!this.client.token) return this.showToast("请先登录");

                // 1. 注入收藏确认框 (如果不存在)
                if (!document.getElementById('gm-collect-modal')) {
                    const modalHtml = `
                        <div class="gm-modal-mask" id="gm-collect-modal">
                            <div class="gm-modal">
                                <div class="gm-modal-title">收藏提示</div>
                                <div class="gm-modal-desc"></div>
                                <div class="gm-modal-btns">
                                    <div class="gm-modal-btn gm-btn-cancel">取消</div>
                                    <div class="gm-modal-btn gm-btn-confirm">确定</div>
                                </div>
                            </div>
                        </div>
                    `;
                    const div = document.createElement('div');
                    div.innerHTML = modalHtml;
                    document.body.appendChild(div.firstElementChild);
                }

                const modal = document.getElementById('gm-collect-modal');
                const title = modal.querySelector('.gm-modal-title');
                const desc = modal.querySelector('.gm-modal-desc');
                const confirmBtn = modal.querySelector('.gm-btn-confirm');
                const cancelBtn = modal.querySelector('.gm-btn-cancel');

                const isCollected = this.client.isCollected;
                title.innerText = isCollected ? "取消收藏" : "加入书架";
                desc.innerText = isCollected ? "确定要将本书移出书架吗？" : "确定将本书加入书架吗？";

                modal.classList.add('active');

                // 绑定事件 (先解绑防止重复)
                const close = () => modal.classList.remove('active');
                cancelBtn.onclick = close;

                // 重新克隆按钮以去除旧监听器
                const newConfirm = confirmBtn.cloneNode(true);
                confirmBtn.parentNode.replaceChild(newConfirm, confirmBtn);

                newConfirm.onclick = async () => {
                    close();
                    const newState = !isCollected;
                    const success = await this.client.toggleCollect(newState);

                    if (success) {
                        collectBtn.style.color = newState ? '#0984e3' : '#b2bec3';
                        this.showToast(newState ? "收藏成功" : "已取消收藏");
                    } else {
                        this.showToast("操作失败");
                    }
                };
            };

            // === 跳页功能 ===
            // 1. 注入模态框
            if (!document.getElementById('gm-jump-modal')) {
                const modalHtml = `
                    <div class="gm-modal-mask" id="gm-jump-modal">
                        <div class="gm-modal">
                            <div class="gm-modal-title">跳转楼层</div>
                            <div class="gm-modal-desc">请输入目标楼层号 (1 - ${this.client.totalFloors || '?'})</div>
                            <div class="gm-input-group">
                                <input type="number" class="gm-login-input" id="gm-jump-input" placeholder="例如: 100">
                            </div>
                            <div class="gm-modal-btns">
                                <div class="gm-modal-btn gm-btn-cancel">取消</div>
                                <div class="gm-modal-btn gm-btn-confirm">跳转</div>
                            </div>
                        </div>
                    </div>
                `;
                const div = document.createElement('div');
                div.innerHTML = modalHtml;
                document.body.appendChild(div.firstElementChild);
            }

            const jumpBtn = this.root.querySelector('#gm-jump-toggle');
            const jumpModal = document.getElementById('gm-jump-modal');
            const jumpInput = document.getElementById('gm-jump-input');

            // 打开模态框
            jumpBtn.onclick = () => {
                jumpModal.querySelector('.gm-modal-desc').innerText = `请输入目标楼层号 (1 - ${this.client.totalFloors || '未知'})`;
                jumpModal.classList.add('active');
                jumpInput.value = '';
                setTimeout(() => jumpInput.focus(), 100);
            };

            // 取消
            jumpModal.querySelector('.gm-btn-cancel').onclick = () => jumpModal.classList.remove('active');

            // 确认跳转
            const doJump = () => {
                const val = parseInt(jumpInput.value);
                if (!val || val < 1) return;
                jumpModal.classList.remove('active');
                this.jumpToFloor(val);
            };
            jumpModal.querySelector('.gm-btn-confirm').onclick = doJump;
            jumpInput.onkeydown = (e) => { if(e.key === 'Enter') doJump(); };

			let loadTimer = null;
			const handleScroll = () => {
                // ⚡ 如果正在跳转中，忽略一切滚动事件，防止触发旧楼层的加载逻辑
                if (this.isJumping) return;

				if (!this.ticking) {
					window.requestAnimationFrame(() => {
						this.updateBackground();
						this.ticking = false;
					});
					this.ticking = true;
				}
				if (loadTimer) clearTimeout(loadTimer);
				loadTimer = setTimeout(() => {
                    // 1. 记录阅读进度 (500ms 延迟保存，即停止滚动后半秒保存)
                    this.checkActiveFloor();

					if (this.client.isLoading) return;
					const scrollTop = scrollArea.scrollTop;
					const scrollHeight = scrollArea.scrollHeight;
					const clientHeight = scrollArea.clientHeight;

					if (scrollTop < 200) this.loadMore('prev', topLoader);
					else if (scrollTop + clientHeight >= scrollHeight - 800) this.loadMore('next',
						bottomLoader);
				}, 500); // 将防抖时间从 100ms 改为 500ms，对性能更好，也符合阅读习惯
			};

			scrollArea.addEventListener('scroll', handleScroll, {
				passive: true
			});

			this.root.addEventListener('click', (e) => {
				const btn = e.target.closest('.gm-comment-btn');
				if (btn) {
					e.stopPropagation();
					const pid = btn.dataset.pid;
					const floorEl = btn.closest('.gm-floor');
					if (floorEl && pid) {
						const floorNum = parseInt(floorEl.dataset.floorNum);
						const floorId = this.client.floorMap.get(floorNum);
						if (floorId) this.showComments(floorId, pid);
					}
				}
				if (e.target.classList.contains('gm-jump-btn')) {
					const target = e.target.dataset.target;
					if (target) this.jumpToFloor(target);
				}
				if (e.target.classList.contains('gm-floor-cmt-btn')) {
					const fid = e.target.dataset.fid;
					if (fid) this.showComments(fid, null);
				}
                // 引用跳转
                const quoteBox = e.target.closest('.g-quote-box');
                if (quoteBox) {
                    const bid = quoteBox.dataset.bid;
                    const fid = quoteBox.dataset.fid;
                    if (bid && fid) this.showQuoteModal(bid, fid);
                }
			});
		}

        showQuoteModal(bid, fid) {
            if (!document.getElementById('gm-quote-modal')) {
                const modalHtml = `
                    <div class="gm-modal-mask" id="gm-quote-modal">
                        <div class="gm-modal">
                            <div class="gm-modal-title">跳转确认</div>
                            <div class="gm-modal-desc"></div>
                            <div class="gm-modal-btns">
                                <div class="gm-modal-btn gm-btn-cancel">取消</div>
                                <div class="gm-modal-btn gm-btn-confirm">跳转</div>
                            </div>
                        </div>
                    </div>
                `;
                const div = document.createElement('div');
                div.innerHTML = modalHtml;
                document.body.appendChild(div.firstElementChild);

                const m = document.getElementById('gm-quote-modal');
                m.querySelector('.gm-btn-cancel').onclick = () => m.classList.remove('active');
            }

            const modal = document.getElementById('gm-quote-modal');
            const desc = modal.querySelector('.gm-modal-desc');
            const confirmBtn = modal.querySelector('.gm-btn-confirm');

            // 检查是否为本书
            const isCurrentBook = String(bid) === String(this.client.bookId);
            const bookText = isCurrentBook ? "当前书籍" : `Book: ${bid}`;

            desc.innerHTML = `即将跳转到<br><b>${bookText}</b><br>第 <b style="color:#6c5ce7">${fid}</b> 层`;

            // 重新克隆按钮以去除旧监听器
            const newConfirm = confirmBtn.cloneNode(true);
            confirmBtn.parentNode.replaceChild(newConfirm, confirmBtn);

            newConfirm.onclick = () => {
                modal.classList.remove('active');
                if (isCurrentBook) {
                    this.jumpToFloor(fid);
                } else {
                    window.location.href = `/book/${bid}?floorSort=${fid}`;
                }
            };

            modal.classList.add('active');
        }

		async loadMore(direction, loaderEl) {
            // ⚡ 记录发起请求时的代数
            const currentGen = this.renderGeneration;

			let targetFloorNum;
			if (direction === 'prev') {
				targetFloorNum = this.client.minLoaded - 1;
				if (targetFloorNum < 1) return;
			} else {
				targetFloorNum = this.client.maxLoaded + 1;
				if (!this.client.floorMap.has(targetFloorNum)) return;
			}

			this.client.isLoading = true;
			loaderEl.style.display = 'flex';

			const idsToLoad = [];
			for (let i = 0; i < 10; i++) {
				let num = direction === 'prev' ? targetFloorNum - i : targetFloorNum + i;
				if (this.client.floorMap.has(num)) idsToLoad.push(this.client.floorMap.get(num));
			}

			if (idsToLoad.length > 0) {
				console.log(`📡 [API] 请求 ${direction} 加载`);
				const data = await this.client.fetchFloors(idsToLoad);

                // ⚡ 核心检查：如果数据返回时，代数已经变了（说明中间发生了跳转），则丢弃数据
                if (this.renderGeneration === currentGen) {
				    if (data) this.renderFloors(data, direction === 'prev' ? 'prepend' : 'append');
                } else {
                    console.log("⚠️ [LoadMore] 检测到跳转发生，丢弃过期数据");
                }
			}

			loaderEl.style.display = 'none';
			this.client.isLoading = false;
		}
	}

    // ==========================================
    // 3.5 首页 App 模式 UI
    // ==========================================
    class MobileHomeUI {
        constructor(client) {
            this.client = client;
            this.root = null;
            this.tabs = [
                { id: 'search', label: '搜索', icon: 'M15.5 14h-.79l-.28-.27C15.41 12.59 16 11.11 16 9.5 16 5.91 13.09 3 9.5 3S3 5.91 3 9.5 5.91 16 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z' },
                { id: 'msg', label: '消息', icon: 'M20 2H4c-1.1 0-1.99.9-1.99 2L2 22l4-4h14c1.1 0 2-.9 2-2V4c0-1.1-.9-2-2-2zm-2 12H6v-2h12v2zm0-3H6V9h12v2zm0-3H6V6h12v2z' },
                { id: 'rank', label: '排行榜', icon: 'M16 6l2.29 2.29-4.88 4.88-4-4L2 16.59 3.41 18l6-6 4 4 6.3-6.29L22 12V6z' },
                { id: 'shelf', label: '书架', icon: 'M4 6H2v14c0 1.1.9 2 2 2h14v-2H4V6zm16-4H8c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V4c0-1.1-.9-2-2-2zm0 14H8V4h12v12zM10 9h8v2h-8zm0 3h4v2h-4zm0-6h8v2h-8z' },
                { id: 'works', label: '我的作品', icon: 'M3 17.25V21h3.75L17.81 9.94l-3.75-3.75L3 17.25zM20.71 7.04c.39-.39.39-1.02 0-1.41l-2.34-2.34c-.39-.39-1.02-.39-1.41 0l-1.83 1.83 3.75 3.75 1.83-1.83z' }
            ];
            this.activeTab = 'rank';

            // 搜索相关状态
            this.searchOptions = { sort: 'default', minWords: 0 };

            // 排行榜相关状态
            this.rankState = {
                type: 'NEW', // NEW, UPDATE, RELEASE, VIEW
                page: 1,
                loading: false,
                hasMore: true
            };

            // 书架相关状态
            this.shelfState = {
                page: 1,
                loading: false,
                hasMore: true,
                mode: 'list', // 'list' or 'grid'
                data: [] // 缓存已加载的书籍
            };

            // 消息轮询定时器
            this.msgPollTimer = null;

            // 图片懒加载观察器
            this.imageObserver = null;
        }

        init() {
            this.initImageObserver();
            this.injectHomeStyles();

            this.root = document.createElement('div');
            this.root.id = 'g-mobile-app';

            const user = this.client.currentUser || {};
            const isLogin = !!this.client.token;

            // 统一逻辑：无论登录与否都显示头像框，未登录显示默认头像和"请登录"
            const headPic = (isLogin && user.headPic) ? user.headPic : 'https://www.gululu.world/favicon.ico';
            const displayName = isLogin ? (user.nickName || '我') : '请登录';

            this.root.innerHTML = `
                <div class="gm-navbar">
                    <div class="gm-nav-btn gm-navbar-exit" id="gm-home-exit">退出</div>
                    <div class="gm-nav-title">骨碌碌</div>
                    <div style="display:flex;align-items:center">
                        <div class="gm-nav-btn gm-navbar-night" id="gm-toggle-night">🌗</div>
                        <div class="gm-user-profile" id="gm-user-area" style="display:flex;align-items:center;gap:15px;padding-right:10px;cursor:pointer">
                            <span class="gm-user-name">${displayName}</span>
                            <img src="${headPic}" class="gm-navbar-avatar">
                        </div>
                    </div>
                </div>

                <!-- 下拉菜单 -->
                <div class="gm-user-menu" id="gm-user-menu">
                    <div class="gm-user-menu-item" id="gm-menu-scale">UI缩放: ${Math.round((config.mobileScale||1)*100)}%</div>
                    <div class="gm-user-menu-item" id="gm-menu-fullscreen">全屏模式 ⛶</div>
                    <div class="gm-user-menu-item" id="gm-menu-auth" style="color:${isLogin ? '#ff4757' : '#6c5ce7'}">
                        ${isLogin ? '退出登录' : '立即登录'}
                    </div>
                </div>
                <div class="gm-content" style="padding-bottom: 140px;">
                    ${this.tabs.map(tab => `
                        <div class="gm-tab-content ${tab.id === this.activeTab ? 'active' : ''}" id="gm-tab-content-${tab.id}">
                            ${this.getTabInitialHtml(tab)}
                        </div>
                    `).join('')}
                </div>
                <div class="gm-tab-bar">
                    ${this.tabs.map(tab => `
                        <div class="gm-tab-item ${tab.id === this.activeTab ? 'active' : ''}" data-tab="${tab.id}" style="position:relative">
                            <svg class="gm-tab-icon" viewBox="0 0 24 24">
                                <path d="${tab.icon}"></path>
                            </svg>
                            <div class="gm-tab-label">${tab.label}</div>
                            ${tab.id === 'msg' ? '<div class="gm-tab-badge-main" id="gm-tab-badge-msg" style="display:none"></div>' : ''}
                        </div>
                    `).join('')}
                </div>
            `;
            document.body.appendChild(this.root);

            // 绑定 Tab 点击事件
            const tabItems = this.root.querySelectorAll('.gm-tab-item');
            tabItems.forEach(item => {
                item.onclick = () => {
                    const tabId = item.dataset.tab;
                    this.switchTab(tabId);
                };
            });

            // 左上角退出手机模式
            this.root.querySelector('#gm-home-exit').onclick = () => {
                if(confirm("退出手机模式？")) {
                    config.mobileModeEnabled = false;
                    localStorage.setItem('gululu_global_config_v6', JSON.stringify(config));
                    location.reload();
                }
            };

            // 夜间模式初始化与切换
            if (config.nightMode) document.body.classList.add('g-night-mode');

            this.root.querySelector('#gm-toggle-night').onclick = () => {
                document.body.classList.toggle('g-night-mode');
                config.nightMode = document.body.classList.contains('g-night-mode');
                localStorage.setItem('gululu_global_config_v6', JSON.stringify(config));
            };

            // 右上角用户区域点击事件 (切换菜单)
            const menu = this.root.querySelector('#gm-user-menu');
            this.root.querySelector('#gm-user-area').onclick = (e) => {
                e.stopPropagation();
                menu.classList.toggle('active');
            };

            // 点击外部关闭菜单
            document.addEventListener('click', (e) => {
                if (!e.target.closest('#gm-user-menu') && !e.target.closest('#gm-user-area')) {
                    menu.classList.remove('active');
                }
            });

            // 菜单：UI缩放切换
            this.root.querySelector('#gm-menu-scale').onclick = (e) => {
                const scales = [0.25, 0.5, 0.75, 1.0, 1.25, 1.5];
                let current = config.mobileScale || 1.0;
                let idx = scales.findIndex(s => Math.abs(s - current) < 0.01);
                if (idx === -1) idx = 3;

                idx = (idx + 1) % scales.length;
                config.mobileScale = scales[idx];

                document.documentElement.style.setProperty('--gm-scale', config.mobileScale);
                localStorage.setItem('gululu_global_config_v6', JSON.stringify(config));
                e.target.innerText = `UI缩放: ${config.mobileScale * 100}%`;
            };

            // 菜单：全屏切换
            const fsBtn = this.root.querySelector('#gm-menu-fullscreen');
            fsBtn.onclick = () => {
                if (!document.fullscreenElement) {
                    sessionStorage.setItem('gm_is_fullscreen', '1'); // 标记意图
                    document.documentElement.requestFullscreen().catch(e => alert("全屏失败: " + e.message));
                } else {
                    sessionStorage.removeItem('gm_is_fullscreen'); // 清除意图
                    if (document.exitFullscreen) document.exitFullscreen();
                }
                menu.classList.remove('active');
            };
            document.addEventListener('fullscreenchange', () => {
                fsBtn.innerHTML = document.fullscreenElement ? '退出全屏 ✕' : '全屏模式 ⛶';
            });

            // 菜单：登录/退出
            this.root.querySelector('#gm-menu-auth').onclick = () => {
                menu.classList.remove('active');
                if (isLogin) {
                    this.initLogoutModal();
                } else {
                    this.initLoginModal();
                }
            };

            // ⚡ 异步更新用户信息 (修复头像显示为"我"的问题)
            if (isLogin) {
                this.client.fetchUserInfo().then(u => {
                    if (u) {
                        const nameEl = this.root.querySelector('.gm-user-name');
                        const imgEl = this.root.querySelector('#gm-user-area img');
                        if (nameEl) nameEl.textContent = u.nickName;
                        if (imgEl && u.headPic) imgEl.src = u.headPic;
                    }
                });
            }

            // 初始化搜索页逻辑
            this.initSearchTab();

            // 初始化消息页逻辑
            this.initMsgTab();

            // 初始化排行榜逻辑
            this.initRankTab();

            // 初始化作品页逻辑
            this.initWorksTab();

            // 初始化书架页逻辑
            this.initShelfTab();

            // 全局滚动监听 (用于排行榜/书架无限加载)
            const scrollContent = this.root.querySelector('.gm-content');
            scrollContent.addEventListener('scroll', () => {
                const { scrollTop, scrollHeight, clientHeight } = scrollContent;
                if (scrollTop + clientHeight < scrollHeight - 200) return;

                if (this.activeTab === 'rank') {
                    this.loadRankData(true);
                } else if (this.activeTab === 'shelf') {
                    this.loadShelfData(true);
                }
            }, { passive: true });
        }

        initLogoutModal() {
            if (document.getElementById('gm-logout-modal')) {
                document.getElementById('gm-logout-modal').classList.add('active');
                return;
            }
            const modalHtml = `
                <div class="gm-modal-mask active" id="gm-logout-modal">
                    <div class="gm-modal">
                        <div class="gm-modal-title">退出登录</div>
                        <div class="gm-modal-desc">确定要退出当前账号吗？</div>
                        <div class="gm-modal-btns">
                            <div class="gm-modal-btn gm-btn-cancel" id="gm-logout-cancel">取消</div>
                            <div class="gm-modal-btn gm-btn-confirm" id="gm-logout-confirm" style="background:#ff4757;border-color:#ff4757;box-shadow:0 5px 15px rgba(255, 71, 87, 0.3)">退出</div>
                        </div>
                    </div>
                </div>
            `;
            const div = document.createElement('div');
            div.innerHTML = modalHtml;
            document.body.appendChild(div.firstElementChild);

            const modal = document.getElementById('gm-logout-modal');
            modal.querySelector('#gm-logout-cancel').onclick = () => modal.classList.remove('active');

            modal.querySelector('#gm-logout-confirm').onclick = () => {
                // 强力清除 Cookie (覆盖根域名和当前域名)
                const keys = document.cookie.match(/([^ =;]+)=/g);
                if (keys) {
                    for (let i = keys.length; i--;) {
                        const key = keys[i].substring(0, keys[i].length - 1);
                        document.cookie = key + '=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/;';
                        document.cookie = key + '=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/; domain=.gululu.world;';
                        document.cookie = key + '=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/; domain=gululu.world;';
                    }
                }
                localStorage.removeItem('gululu_user_cache');
                location.reload();
            };
        }

        initLoginModal() {
            if (document.getElementById('gm-login-modal')) {
                document.getElementById('gm-login-modal').classList.add('active');
                return;
            }

            const modalHtml = `
                <div class="gm-modal-mask active" id="gm-login-modal">
                    <div class="gm-modal">
                        <div class="gm-login-tabs">
                            <div class="gm-login-tab active" data-type="pass">密码登录</div>
                            <div class="gm-login-tab" data-type="sms">验证码登录</div>
                        </div>

                        <div id="gm-login-form-pass">
                            <div class="gm-input-group"><input type="number" class="gm-login-input" id="gm-login-phone" placeholder="手机号"></div>
                            <div class="gm-input-group"><input type="password" class="gm-login-input" id="gm-login-pass" placeholder="密码"></div>
                        </div>

                        <div id="gm-login-form-sms" style="display:none">
                            <div class="gm-input-group"><input type="number" class="gm-login-input" id="gm-login-phone-sms" placeholder="手机号"></div>
                            <div class="gm-input-group">
                                <input type="number" class="gm-login-input" id="gm-login-code" placeholder="验证码">
                                <button class="gm-code-btn" id="gm-get-code">获取验证码</button>
                            </div>
                        </div>

                        <div class="gm-modal-btns" style="margin-top:40px">
                            <div class="gm-modal-btn gm-btn-cancel" id="gm-login-cancel">取消</div>
                            <div class="gm-modal-btn gm-btn-confirm" id="gm-login-submit">登录</div>
                        </div>
                    </div>
                </div>
            `;
            const div = document.createElement('div');
            div.innerHTML = modalHtml;
            document.body.appendChild(div.firstElementChild);

            const modal = document.getElementById('gm-login-modal');
            const tabs = modal.querySelectorAll('.gm-login-tab');
            let loginType = 'pass';

            // 切换 Tab
            tabs.forEach(tab => tab.onclick = () => {
                tabs.forEach(t => t.classList.remove('active'));
                tab.classList.add('active');
                loginType = tab.dataset.type;
                document.getElementById('gm-login-form-pass').style.display = loginType === 'pass' ? 'block' : 'none';
                document.getElementById('gm-login-form-sms').style.display = loginType === 'sms' ? 'block' : 'none';
            });

            // 取消
            modal.querySelector('#gm-login-cancel').onclick = () => modal.classList.remove('active');

            // 获取验证码
            modal.querySelector('#gm-get-code').onclick = async (e) => {
                const btn = e.target;
                const phone = document.getElementById('gm-login-phone-sms').value;
                if (!phone) return alert("请输入手机号");

                btn.disabled = true;
                const res = await this.client.sendSmsCode(phone);
                if (res.code === 200) {
                    let sec = 60;
                    const timer = setInterval(() => {
                        btn.innerText = `${sec--}s`;
                        if (sec < 0) {
                            clearInterval(timer);
                            btn.disabled = false;
                            btn.innerText = "获取验证码";
                        }
                    }, 1000);
                } else {
                    alert(res.msg);
                    btn.disabled = false;
                }
            };

            // 提交登录
            modal.querySelector('#gm-login-submit').onclick = async () => {
                let res;
                if (loginType === 'pass') {
                    const phone = document.getElementById('gm-login-phone').value;
                    const pass = document.getElementById('gm-login-pass').value;
                    if (!phone || !pass) return alert("请填写完整");
                    res = await this.client.loginByPass(phone, pass);
                } else {
                    const phone = document.getElementById('gm-login-phone-sms').value;
                    const code = document.getElementById('gm-login-code').value;
                    if (!phone || !code) return alert("请填写完整");
                    res = await this.client.loginBySms(phone, code);
                }

                if (res.code === 200 && res.data && res.data.token) {
                    // 写入 Cookie 并刷新
                    const token = res.data.token;
                    document.cookie = `token=${token}; path=/; max-age=2592000`; // 30天
                    document.cookie = `Admin-Token=${token}; path=/; max-age=2592000`;
                    location.reload();
                } else {
                    alert(res.msg || "登录失败");
                }
            };
        }

        injectHomeStyles() {
            const style = document.createElement('style');
            const css = `
                .gm-search-container { padding: 40px 20px; margin-top: 40px; }
                .gm-search-container.compact { margin-top: 0; padding-bottom: 20px; }

                .gm-search-box {
                    position: relative; width: 100%; height: 110px;
                    background: #fff; border-radius: 60px;
                    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
                    display: flex; align-items: center; padding: 0 40px;
                    box-sizing: border-box; border: 3px solid transparent;
                    transition: all 0.3s;
                }
                .gm-search-box.focused { border-color: #6c5ce7; box-shadow: 0 10px 50px rgba(108, 92, 231, 0.2); }
                .gm-search-box.compact { height: 90px; }
                .gm-search-icon { width: 48px; height: 48px; fill: #999; margin-right: 25px; flex-shrink: 0; }
                .gm-search-input {
                    flex: 1; border: none; background: transparent;
                    font-size: 36px; color: #333; outline: none; height: 100%;
                    font-weight: 500;
                }
                .gm-search-input::placeholder { color: #ccc; }

                .gm-tags-section { margin-top: 80px; padding: 0 20px; }
                .gm-tags-title { font-size: 34px; font-weight: 800; color: #333; margin-bottom: 30px; display: flex; justify-content: space-between; align-items: center; }
                .gm-tags-list { display: flex; flex-wrap: wrap; gap: 20px; }
                .gm-tag-item {
                    padding: 16px 36px; background: #fff; border-radius: 40px;
                    font-size: 30px; color: #555; cursor: pointer; font-weight: 500;
                    box-shadow: 0 4px 15px rgba(0,0,0,0.05); transition: all 0.2s; border: 1px solid #f0f0f0;
                }
                .gm-tag-item:active { transform: scale(0.95); background: #f0f0f0; }

                /* 夜间模式适配 */
                body.g-night-mode .gm-search-box { background: #2d2d2d; box-shadow: none; border-color: #444; }
                body.g-night-mode .gm-search-box.focused { border-color: #6c5ce7; }
                body.g-night-mode .gm-search-input { color: #eee; }
                body.g-night-mode .gm-tags-title { color: #eee; }
                body.g-night-mode .gm-tag-item { background: #2d2d2d; color: #ccc; border-color: #444; }
                body.g-night-mode .gm-user-name { color: #ccc !important; }

                /* === 搜索结果页样式 === */
                .gm-sub-tabs { display: flex; border-bottom: 1px solid #eee; background: #fff; position: sticky; top: 0; z-index: 10; }
                .gm-sub-tab { flex: 1; text-align: center; padding: 25px 0; font-size: 30px; color: #999; font-weight: 600; position: relative; }
                .gm-sub-tab.active { color: #6c5ce7; }
                .gm-sub-tab.active::after { content: ""; position: absolute; bottom: 0; left: 25%; width: 50%; height: 6px; background: #6c5ce7; border-radius: 6px; }

                .gm-result-list { padding: 20px; }

                /* 通用卡片基础 */
                .gm-res-card { background: #fff; border-radius: 20px; padding: 25px; margin-bottom: 25px; box-shadow: 0 4px 15px rgba(0,0,0,0.03); display: flex; gap: 25px; }

                /* 书籍卡片 (安科) */
                .gm-res-book-cover { width: 140px; height: 186px; border-radius: 12px; object-fit: cover; flex-shrink: 0; box-shadow: 0 4px 10px rgba(0,0,0,0.1); }
                .gm-res-book-info { flex: 1; display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; }
                .gm-res-title { font-size: 32px; font-weight: bold; color: #333; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
                .gm-res-author { font-size: 24px; color: #999; display: flex; align-items: center; gap: 10px; }
                .gm-res-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
                .gm-res-tag { font-size: 20px; padding: 4px 12px; background: #f0f2f5; color: #666; border-radius: 8px; }

                /* 综合卡片 (闲聊/楼层) */
                .gm-res-general { flex-direction: column; gap: 15px; }
                .gm-res-ctx { font-size: 28px; color: #555; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
                .gm-res-meta { font-size: 22px; color: #aaa; display: flex; justify-content: space-between; border-top: 1px solid #f9f9f9; padding-top: 15px; }

                /* 用户卡片 */
                .gm-res-user { align-items: center; }
                .gm-res-avatar { width: 100px; height: 100px; border-radius: 50%; object-fit: cover; }
                .gm-res-uinfo { flex: 1; }
                .gm-res-uname { font-size: 32px; font-weight: bold; color: #333; margin-bottom: 8px; }
                .gm-res-ustats { font-size: 24px; color: #999; }

                /* 夜间模式 */
                body.g-night-mode .gm-sub-tabs { background: #1e1e1e; border-color: #333; }
                body.g-night-mode .gm-res-card { background: #2d2d2d; }
                body.g-night-mode .gm-res-title, body.g-night-mode .gm-res-uname { color: #eee; }
                body.g-night-mode .gm-res-ctx { color: #bbb; }
                body.g-night-mode .gm-res-tag { background: #333; color: #aaa; }

                /* === 搜索筛选栏 === */
                .gm-filter-bar { display: flex; gap: 20px; padding: 0 20px; margin-bottom: 20px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
                .gm-select-wrapper { position: relative; flex-shrink: 0; }
                .gm-select {
                    appearance: none; -webkit-appearance: none;
                    background: #f5f6fa; border: 1px solid #eee;
                    padding: 12px 60px 12px 30px; border-radius: 30px;
                    font-size: 26px; font-weight: bold; color: #555;
                    outline: none; transition: all 0.2s;
                }
                .gm-select:focus { border-color: #6c5ce7; background: #fff; }
                .gm-select-arrow {
                    position: absolute; right: 20px; top: 50%; transform: translateY(-50%);
                    width: 0; height: 0; border-left: 8px solid transparent; border-right: 8px solid transparent; border-top: 10px solid #999;
                    pointer-events: none;
                }

                body.g-night-mode .gm-select { background: #2d2d2d; border-color: #444; color: #ccc; }
                body.g-night-mode .gm-select:focus { border-color: #6c5ce7; background: #333; }

                /* 我的作品卡片 - 大图模式 */
                .gm-work-card { flex-direction: column; padding: 30px; }
                .gm-work-header { display: flex; gap: 30px; margin-bottom: 25px; }
                .gm-work-cover { width: 180px; height: 240px; border-radius: 16px; object-fit: cover; box-shadow: 0 5px 15px rgba(0,0,0,0.1); flex-shrink: 0; }
                .gm-work-main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
                .gm-work-title { font-size: 36px; font-weight: 800; color: #333; margin-bottom: 15px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
                .gm-work-intro { font-size: 26px; color: #888; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
                .gm-work-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; background: #f8f9fa; padding: 25px; border-radius: 20px; }
                .gm-stat-item { text-align: center; }
                .gm-stat-num { font-size: 32px; font-weight: bold; color: #333; margin-bottom: 5px; }
                .gm-stat-label { font-size: 22px; color: #999; }
                .gm-work-footer { margin-top: 25px; padding-top: 20px; border-top: 1px solid #f0f0f0; font-size: 24px; color: #aaa; text-align: right; }

                body.g-night-mode .gm-work-title { color: #eee; }
                body.g-night-mode .gm-work-intro { color: #aaa; }
                body.g-night-mode .gm-work-stats { background: #333; }
                body.g-night-mode .gm-stat-num { color: #ddd; }
                body.g-night-mode .gm-work-footer { border-color: #333; }

                /* === 书架样式 === */
                .gm-shelf-toolbar { display: flex; justify-content: space-between; align-items: center; padding: 20px 30px; background: #fff; margin-bottom: 20px; box-shadow: 0 4px 10px rgba(0,0,0,0.03); position: sticky; top: 0; z-index: 10; }
                .gm-view-toggle { font-size: 28px; padding: 10px 24px; background: #f0f2f5; border-radius: 30px; color: #666; cursor: pointer; display: flex; align-items: center; gap: 10px; font-weight: bold; }
                .gm-view-toggle:active { transform: scale(0.95); }

                /* 列表模式进度条 */
                .gm-shelf-progress { margin-top: 15px; font-size: 24px; color: #6c5ce7; font-weight: bold; display: flex; align-items: center; gap: 15px; }
                .gm-progress-bar { flex: 1; height: 10px; background: #eee; border-radius: 5px; overflow: hidden; }
                .gm-progress-fill { height: 100%; background: #6c5ce7; border-radius: 5px; }

                /* 网格模式 */
                .gm-shelf-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; padding: 0 20px 40px 20px; }
                .gm-grid-item { position: relative; aspect-ratio: 0.7; border-radius: 16px; overflow: hidden; box-shadow: 0 5px 15px rgba(0,0,0,0.1); background: #eee; cursor: pointer; }
                .gm-grid-cover { width: 100%; height: 100%; object-fit: cover; }
                .gm-grid-overlay { position: absolute; bottom: 0; left: 0; width: 100%; background: linear-gradient(to top, rgba(0,0,0,0.8), transparent); padding: 20px 10px 10px; color: white; box-sizing: border-box; }
                .gm-grid-title { font-size: 22px; font-weight: bold; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
                .gm-grid-info { font-size: 18px; color: #ddd; margin-top: 4px; display: flex; justify-content: space-between; }
                .gm-grid-badge { position: absolute; top: 10px; right: 10px; background: #ff4757; color: white; font-size: 16px; padding: 4px 8px; border-radius: 8px; font-weight: bold; box-shadow: 0 2px 5px rgba(0,0,0,0.2); }

                body.g-night-mode .gm-shelf-toolbar { background: #1e1e1e; box-shadow: none; border-bottom: 1px solid #333; }
                body.g-night-mode .gm-view-toggle { background: #333; color: #aaa; }
                body.g-night-mode .gm-grid-item { border: 1px solid #333; }

                /* === 消息页样式 === */
                .gm-msg-card {
                    background: #fff; padding: 25px; margin-bottom: 20px;
                    border-radius: 20px; display: flex; gap: 20px;
                    box-shadow: 0 4px 12px rgba(0,0,0,0.03); cursor: pointer;
                }
                .gm-msg-card:active { background: #f9f9f9; }
                .gm-msg-avatar { width: 90px; height: 90px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
                .gm-msg-body { flex: 1; overflow: hidden; display: flex; flex-direction: column; justify-content: center; }
                .gm-msg-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
                .gm-msg-user { font-size: 30px; font-weight: bold; color: #333; }
                .gm-msg-time { font-size: 22px; color: #aaa; }
                .gm-msg-content { font-size: 28px; color: #555; line-height: 1.4; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
                .gm-msg-source {
                    font-size: 22px; color: #999; background: #f5f6fa;
                    padding: 8px 16px; border-radius: 10px; align-self: flex-start;
                    max-width: 100%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
                }

                /* 消息红点 */
                .gm-tab-badge {
                    position: absolute; top: 15px; right: 20%;
                    background: #ff4757; color: white;
                    font-size: 20px; height: 32px; min-width: 32px; padding: 0 8px;
                    border-radius: 16px; display: flex; align-items: center; justify-content: center;
                    box-shadow: 0 2px 5px rgba(255, 71, 87, 0.3); z-index: 20;
                }

                /* 底部导航红点 */
                .gm-tab-badge-main {
                    position: absolute; top: 5px; left: 50%; margin-left: 10px;
                    background: #ff4757; color: white;
                    font-size: 20px; height: 32px; min-width: 32px; padding: 0 6px;
                    border-radius: 16px; display: flex; align-items: center; justify-content: center;
                    box-shadow: 0 2px 5px rgba(255, 71, 87, 0.3); z-index: 25;
                    font-weight: bold; border: 2px solid #fff;
                }
                body.g-night-mode .gm-tab-badge-main { border-color: #2d2d2d; }

                body.g-night-mode .gm-msg-card { background: #2d2d2d; }
                body.g-night-mode .gm-msg-user { color: #eee; }
                body.g-night-mode .gm-msg-content { color: #ccc; }
                body.g-night-mode .gm-msg-source { background: #333; color: #888; }

                /* 图片懒加载动画 */
                img.lazy-load { opacity: 0; transition: opacity 0.3s ease-in; }
                img.lazy-loaded { opacity: 1; }

                /* 强制覆盖首页背景 */
                body.g-night-mode, body.g-night-mode #g-mobile-app {
                    background-color: #121212 !important;
                }

                /* === 用户下拉菜单 === */
                .gm-user-menu {
                    position: absolute; top: 120px; right: 20px;
                    background: #fff; border-radius: 24px;
                    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
                    display: none; flex-direction: column;
                    z-index: 10000; overflow: hidden;
                    min-width: 280px; border: 1px solid #eee;
                }
                .gm-user-menu.active { display: flex; animation: gm-fade-in 0.2s ease; }
                .gm-user-menu-item {
                    padding: 30px 40px; font-size: 30px; font-weight: bold;
                    color: #333; text-align: center; border-bottom: 1px solid #f5f5f5;
                    cursor: pointer; transition: background 0.1s;
                }
                .gm-user-menu-item:active { background: #f5f6fa; }
                .gm-user-menu-item:last-child { border-bottom: none; }

                body.g-night-mode .gm-user-menu { background: #2d2d2d; border-color: #444; }
                body.g-night-mode .gm-user-menu-item { color: #ccc; border-bottom-color: #444; }
                body.g-night-mode .gm-user-menu-item:active { background: #333; }

                /* === 缩放适配补丁 === */
                .gm-navbar-exit { font-size: 30px; }
                .gm-user-name { font-size: 26px; font-weight: bold; color: #666; max-width: 150px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
                .gm-res-meta-bottom { font-size: 22px; color: #aaa; margin-top: 10px; }
                .gm-res-meta-shelf { font-size: 22px; color: #aaa; margin-top: 10px; display: flex; justify-content: space-between; }
                .gm-work-id { font-size: 26px; line-height: 1.4; color: #aaa; }
                .gm-res-title-general { font-size: 30px; }

                /* 补漏：头像、夜间按钮、阅读进度 */
                .gm-navbar-avatar { width: 70px !important; height: 70px !important; border-radius: 50% !important; border: 2px solid rgba(0,0,0,0.1); object-fit: cover; display: block; }
                .gm-navbar-night { font-size: 36px; margin-right: 15px; }
                .gm-shelf-progress-num { font-size: 20px; color: #999; }

                body.g-night-mode .gm-user-name { color: #ccc; }
            `;
            style.textContent = css.replace(/(\d+)px/g, 'calc($1px * var(--gm-scale))');
            document.head.appendChild(style);
        }

        initImageObserver() {
            if ('IntersectionObserver' in window) {
                this.imageObserver = new IntersectionObserver((entries, observer) => {
                    entries.forEach(entry => {
                        if (entry.isIntersecting) {
                            const img = entry.target;
                            const src = img.dataset.src;
                            if (src) {
                                img.src = src;
                                img.onload = () => img.classList.add('lazy-loaded');
                                img.removeAttribute('data-src');
                                img.classList.remove('lazy-load');
                                observer.unobserve(img);
                            }
                        }
                    });
                }, { rootMargin: '300px 0px' }); // 提前300px加载，保证流畅
            }
        }

        observeNewImages(container) {
            if (!this.imageObserver || !container) return;
            container.querySelectorAll('img.lazy-load').forEach(img => this.imageObserver.observe(img));
        }

        getTabInitialHtml(tab) {
            if (tab.id === 'rank') {
                return `
                    <div class="gm-sub-tabs" id="gm-rank-tabs">
                        <div class="gm-sub-tab active" data-type="NEW">人气新作榜</div>
                        <div class="gm-sub-tab" data-type="UPDATE">最新更新</div>
                        <div class="gm-sub-tab" data-type="RELEASE">最新发布</div>
                        <div class="gm-sub-tab" data-type="VIEW">浏览最高</div>
                    </div>
                    <div class="gm-result-list" id="gm-rank-list">
                        <div style="text-align:center;padding:50px;color:#999">加载中...</div>
                    </div>
                    <div style="text-align:center;padding:20px;color:#ccc;display:none" id="gm-rank-nomore">没有更多了</div>
                `;
            }
            if (tab.id === 'msg') {
                return `
                    <div class="gm-sub-tabs" id="gm-msg-tabs">
                        <div class="gm-sub-tab active" data-type="2">回复我的<div class="gm-tab-badge" id="gm-badge-reply" style="display:none"></div></div>
                        <div class="gm-sub-tab" data-type="1">收到的赞<div class="gm-tab-badge" id="gm-badge-good" style="display:none"></div></div>
                        <div class="gm-sub-tab" data-type="0">系统通知<div class="gm-tab-badge" id="gm-badge-sys" style="display:none"></div></div>
                    </div>
                    <div class="gm-result-list" id="gm-msg-list">
                        <div style="text-align:center;padding:50px;color:#999">加载中...</div>
                    </div>
                `;
            }
            if (tab.id === 'search') {
                return `
                    <div class="gm-search-container">
                        <form action="javascript:void(0);" class="gm-search-form" style="width:100%">
                            <div class="gm-search-box">
                                <svg class="gm-search-icon" viewBox="0 0 24 24"><path d="M15.5 14h-.79l-.28-.27C15.41 12.59 16 11.11 16 9.5 16 5.91 13.09 3 9.5 3S3 5.91 3 9.5 5.91 16 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z"></path></svg>
                                <input type="search" class="gm-search-input" placeholder="搜索作品、角色...">
                            </div>
                        </form>
                    </div>
                    ${this.renderFilterBar()}
                    <div class="gm-tags-section" style="display:none">
                        <div class="gm-tags-title">
                            <span>搜索历史</span>
                            <span id="gm-clear-history" style="font-size:28px;color:#999;font-weight:normal;cursor:pointer;padding:10px">🗑️</span>
                        </div>
                        <div class="gm-tags-list" id="gm-tags-history"></div>
                    </div>
                    <div class="gm-tags-section" style="display:none">
                        <div class="gm-tags-title">热门搜索</div>
                        <div class="gm-tags-list" id="gm-tags-hot"></div>
                    </div>
                `;
            }
            if (tab.id === 'works') {
                return `<div class="gm-result-list" id="gm-works-list" style="padding-top:40px"></div>`;
            }
            if (tab.id === 'shelf') {
                return `
                    <div class="gm-shelf-toolbar">
                        <div class="gm-shelf-stat" id="gm-shelf-stat">我的书架</div>
                        <div class="gm-view-toggle" id="gm-shelf-toggle">
                     寻       <span>列表</span> ☰
                        </div>
                    </div>
                    <div id="gm-shelf-container">
                        <div style="text-align:center;padding:50px;color:#999">加载中...</div>
                    </div>
                    <div style="text-align:center;padding:20px;color:#ccc;display:none" id="gm-shelf-nomore">没有更多了</div>
                `;
            }
            return `
                <div style="text-align:center; margin-top: 200px;">
                    <svg viewBox="0 0 24 24" style="width:120px;height:120px;fill:#ddd;margin-bottom:20px;">
                        <path d="${tab.icon}"></path>
                    </svg>
                    <div>${tab.label} (开发中...)</div>
                </div>
            `;
        }

        initSearchTab() {
            const input = this.root.querySelector('.gm-search-input');
            const box = this.root.querySelector('.gm-search-box');
            const form = this.root.querySelector('.gm-search-form');

            if (!input) return;

            // 聚焦特效
            input.onfocus = () => box.classList.add('focused');
            input.onblur = () => box.classList.remove('focused');

            // 回车搜索 (表单提交)
            if (form) {
                form.onsubmit = (e) => {
                    e.preventDefault(); // 阻止页面刷新
                    this.doSearch(input.value);
                    input.blur(); // 提交后收起键盘
                };
            } else {
                // 兜底逻辑
                input.onkeydown = (e) => {
                    if(e.key === 'Enter') this.doSearch(input.value);
                };
            }

            // 绑定筛选/排序变化
            this.bindFilterEvents(this.root);

            // 加载数据
            this.loadSearchData();
        }

        async loadSearchData() {
            const [hot, history] = await Promise.all([
                this.client.fetchHotSearch(),
                this.client.fetchSearchHistory()
            ]);

            this.renderTags('history', history);
            this.renderTags('hot', hot);
        }

        renderTags(type, data) {
            const container = this.root.querySelector(`#gm-tags-${type}`);
            if(!container) return;

            const section = container.closest('.gm-tags-section');

            if(!data || data.length === 0) {
                section.style.display = 'none';
                return;
            }

            section.style.display = 'block';
            container.innerHTML = data.map(t => `<div class="gm-tag-item">${t}</div>`).join('');

            // 绑定点击
            container.querySelectorAll('.gm-tag-item').forEach(el => {
                el.onclick = () => this.doSearch(el.innerText);
            });

            // 绑定清空按钮 (仅针对历史记录)
            if (type === 'history') {
                const clearBtn = section.querySelector('#gm-clear-history');
                if (clearBtn) {
                    clearBtn.onclick = async () => {
                        if (confirm('确定要清空搜索历史吗？')) {
                            const success = await this.client.clearSearchHistory();
                            if (success) {
                                section.style.display = 'none';
                                container.innerHTML = '';
                            } else {
                                alert('清空失败，请重试');
                            }
                        }
                    };
                }
            }
        }

        renderFilterBar() {
            return `
                <div class="gm-filter-bar">
                    <div class="gm-select-wrapper">
                        <select class="gm-select" id="gm-filter-sort">
                            <option value="default" ${this.searchOptions.sort==='default'?'selected':''}>默认排序</option>
                            <option value="time" ${this.searchOptions.sort==='time'?'selected':''}>按更新时间</option>
                        </select>
                        <div class="gm-select-arrow"></div>
                    </div>
                    <div class="gm-select-wrapper">
                        <select class="gm-select" id="gm-filter-words">
                            <option value="0" ${this.searchOptions.minWords===0?'selected':''}>不筛选</option>
                            <option value="5000" ${this.searchOptions.minWords===5000?'selected':''}>&gt; 5千字</option>
                            <option value="10000" ${this.searchOptions.minWords===10000?'selected':''}>&gt; 1万字</option>
                            <option value="50000" ${this.searchOptions.minWords===50000?'selected':''}>&gt; 5万字</option>
                            <option value="100000" ${this.searchOptions.minWords===100000?'selected':''}>&gt; 10万字</option>
                            <option value="200000" ${this.searchOptions.minWords===200000?'selected':''}>&gt; 20万字</option>
                            <option value="500000" ${this.searchOptions.minWords===500000?'selected':''}>&gt; 50万字</option>
                            <option value="1000000" ${this.searchOptions.minWords===1000000?'selected':''}>&gt; 100万字</option>
                        </select>
                        <div class="gm-select-arrow"></div>
                    </div>
                </div>
            `;
        }

        bindFilterEvents(container) {
            const sortSelect = container.querySelector('#gm-filter-sort');
            const wordsSelect = container.querySelector('#gm-filter-words');

            if(sortSelect) {
                sortSelect.onchange = (e) => {
                    this.searchOptions.sort = e.target.value;
                    // 如果在结果页且当前是OPUS，刷新结果
                    if(document.getElementById('gm-res-list') && document.querySelector('.gm-sub-tab[data-type="OPUS"].active')) {
                        const keyword = container.querySelector('.gm-search-input').value;
                        this.loadSubTab('OPUS', keyword);
                    }
                };
            }
            if(wordsSelect) {
                wordsSelect.onchange = (e) => {
                    this.searchOptions.minWords = parseInt(e.target.value);
                    if(document.getElementById('gm-res-list') && document.querySelector('.gm-sub-tab[data-type="OPUS"].active')) {
                        const keyword = container.querySelector('.gm-search-input').value;
                        this.loadSubTab('OPUS', keyword);
                    }
                };
            }
        }

        doSearch(keyword) {
            if(!keyword || !keyword.trim()) return;
            keyword = keyword.trim();

            // 1. 隐藏标签页，显示结果容器
            const container = this.root.querySelector('#gm-tab-content-search');
            container.innerHTML = ''; // 清空旧内容

            // 2. 调整搜索框样式 (变紧凑)
            const searchBox = this.root.querySelector('.gm-search-container');
            if(searchBox) searchBox.style.marginTop = '0';

            // 3. 渲染结果页框架
            this.renderResultPage(container, keyword);
        }

        renderResultPage(container, keyword) {
            // 顶部：紧凑的搜索框
            const html = `
                <div class="gm-search-container compact">
                    <form action="javascript:void(0);" class="gm-search-form" style="width:100%">
                        <div class="gm-search-box compact">
                            <svg class="gm-search-icon" viewBox="0 0 24 24"><path d="M15.5 14h-.79l-.28-.27C15.41 12.59 16 11.11 16 9.5 16 5.91 13.09 3 9.5 3S3 5.91 3 9.5 5.91 16 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z"></path></svg>
                            <input type="search" class="gm-search-input" value="${keyword}">
                        </div>
                    </form>
                </div>
                ${this.renderFilterBar()}
                <div class="gm-sub-tabs">
                    <div class="gm-sub-tab active" data-type="OPUS">安科</div>
                    <div class="gm-sub-tab" data-type="ALL">综合</div>
                    <div class="gm-sub-tab" data-type="USER">用户</div>
                </div>
                <div class="gm-result-list" id="gm-res-list">
                    <div style="text-align:center;padding:50px;color:#999">加载中...</div>
                </div>
            `;
            container.innerHTML = html;

            // 重新绑定搜索框事件
            const form = container.querySelector('.gm-search-form');
            const input = container.querySelector('.gm-search-input');

            if (form) {
                form.onsubmit = (e) => {
                    e.preventDefault();
                    this.doSearch(input.value);
                    input.blur();
                };
            }

            // 重新绑定筛选栏事件 (因为 renderResultPage 重新渲染了筛选栏)
            this.bindFilterEvents(container);

            // 绑定 Tab 切换
            const tabs = container.querySelectorAll('.gm-sub-tab');
            tabs.forEach(tab => {
                tab.onclick = () => {
                    tabs.forEach(t => t.classList.remove('active'));
                    tab.classList.add('active');
                    this.loadSubTab(tab.dataset.type, keyword);
                };
            });

            // 默认加载安科
            this.loadSubTab('OPUS', keyword);
        }

        async loadSubTab(type, keyword) {
            const list = document.getElementById('gm-res-list');
            list.innerHTML = '<div style="text-align:center;padding:50px;color:#999">加载中...</div>';

            let html = '';

            // 只有在 OPUS 模式下才显示/使用筛选栏
            const filterBar = this.root.querySelector('.gm-filter-bar');
            if (filterBar) {
                filterBar.style.display = (type === 'OPUS') ? 'flex' : 'none';
            }

            const PLACEHOLDER = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7";

            if (type === 'USER') {
                const users = await this.client.searchUser(keyword);
                if (!users || users.length === 0) {
                    list.innerHTML = '<div style="text-align:center;padding:50px;color:#999">未找到相关用户</div>';
                    return;
                }
                html = users.map(u => `
                    <div class="gm-res-card gm-res-user" onclick="window.location.href='/user/${u.userId}'">
                        <img data-src="${u.headPic}" src="${PLACEHOLDER}" class="gm-res-avatar lazy-load">
                        <div class="gm-res-uinfo">
                            <div class="gm-res-uname">${this.highlight(u.nickName, keyword)}</div>
                            <div class="gm-res-ustats">作品: ${u.opusNum} · 粉丝: ${u.fansNum}</div>
                        </div>
                    </div>
                `).join('');
            }
            else {
                if (type === 'OPUS') {
                    // 2. 聚合搜索 (前10页)
                    const items = await this.fetchOpusAggregated(keyword);

                    if (!items || items.length === 0) {
                        list.innerHTML = '<div style="text-align:center;padding:50px;color:#999">未找到相关安科</div>';
                        return;
                    }

                    html = items.map(item => `
                        <div class="gm-res-card" onclick="window.location.href='/book/${item.opusId}'">
                            <img data-src="${item.coverPic}" src="${PLACEHOLDER}" class="gm-res-book-cover lazy-load">
                            <div class="gm-res-book-info">
                                <div>
                                    <div class="gm-res-title">${this.renderHl(item.opusNameHighlight, item.opusName)}</div>
                                    <div class="gm-res-author">
                                        <span>${this.renderHl(item.authorNameHighlight, item.authorName)}</span>
                                    </div>
                                    <div class="gm-res-tags">
                                        ${this.renderTagsHtml(item.tagNamesHighlight, item.tagNames)}
                                    </div>
                                </div>
                                <div class="gm-res-meta-bottom">${item.words}字 · ${item.readNum}热度 · ${item.updateTime}</div>
                            </div>
                        </div>
                    `).join('');

                } else {
                    // ALL (综合)
                    const res = await this.client.searchGeneral(keyword, type, 1);
                    const items = res ? res.items : [];

                    if (!items || items.length === 0) {
                        list.innerHTML = '<div style="text-align:center;padding:50px;color:#999">未找到相关内容</div>';
                        return;
                    }

                    html = items.map(item => `
                        <div class="gm-res-card gm-res-general" onclick="window.location.href='/book/${item.opusId || item.fatherObjectId}?floorId=${item.id}'">
                            <div class="gm-res-title gm-res-title-general">${item.title || '无标题'}</div>
                            <div class="gm-res-ctx">${this.renderHl(item.contextHighlight, item.context)}</div>
                            <div class="gm-res-meta">
                                <span>${item.createTime}</span>
                                <span>回复: ${item.commentNum}</span>
                            </div>
                        </div>
                    `).join('');
                }
            }

            list.innerHTML = html;
            this.observeNewImages(list); // 启动懒加载监听
        }

        // === 消息逻辑 ===
        initMsgTab() {
            const tabsContainer = this.root.querySelector('#gm-msg-tabs');
            if(!tabsContainer) return;

            // 更新红点
            this.updateMsgBadges();
            this.startMsgPolling();

            // 绑定 Tab 切换
            const tabs = tabsContainer.querySelectorAll('.gm-sub-tab');
            tabs.forEach(tab => {
                tab.onclick = () => {
                    tabs.forEach(t => t.classList.remove('active'));
                    tab.classList.add('active');

                    // 1. 清除当前Tab红点
                    const badge = tab.querySelector('.gm-tab-badge');
                    if (badge) {
                        badge.style.display = 'none';
                        badge.innerText = '0'; // 归零以便后续计算
                    }

                    // 2. 重新计算底部总未读数
                    let total = 0;
                    tabsContainer.querySelectorAll('.gm-tab-badge').forEach(b => {
                        if (b.style.display !== 'none') {
                            total += (parseInt(b.innerText) || 0);
                        }
                    });

                    // 3. 更新底部导航红点
                    const mainBadge = document.getElementById('gm-tab-badge-msg');
                    if (mainBadge) {
                        if (total > 0) {
                            mainBadge.style.display = 'flex';
                            mainBadge.innerText = total > 99 ? '99+' : total;
                        } else {
                            mainBadge.style.display = 'none';
                        }
                    }

                    this.loadMsgData(tab.dataset.type);
                };
            });

            // 默认加载回复
            this.loadMsgData(2);
        }

        startMsgPolling() {
            if (this.msgPollTimer) clearInterval(this.msgPollTimer);
            // 60秒轮询一次，避免过于频繁请求造成服务器压力
            this.msgPollTimer = setInterval(() => {
                this.updateMsgBad
                ges();
            }, 60000);
        }

        async updateMsgBadges() {
            if (!this.client.token) return;
            const data = await this.client.fetchMessageCount();

            let total = 0;

            // getReplyNum -> type 2
            if(data.getReplyNum > 0) {
                total += data.getReplyNum;
                const el = document.getElementById('gm-badge-reply');
                if(el) { el.style.display = 'flex'; el.innerText = data.getReplyNum; }
            }
            // getGoodNum -> type 1
            if(data.getGoodNum > 0) {
                total += data.getGoodNum;
                const el = document.getElementById('gm-badge-good');
                if(el) { el.style.display = 'flex'; el.innerText = data.getGoodNum; }
            }
            // getAdviceNum -> type 0
            if(data.getAdviceNum > 0) {
                total += data.getAdviceNum;
                const el = document.getElementById('gm-badge-sys');
                if(el) { el.style.display = 'flex'; el.innerText = data.getAdviceNum; }
            }

            // 更新底部导航栏红点
            const mainBadge = document.getElementById('gm-tab-badge-msg');
            if(mainBadge) {
                if(total > 0) {
                    mainBadge.style.display = 'flex';
                    mainBadge.innerText = total > 99 ? '99+' : total;
                } else {
                    mainBadge.style.display = 'none';
                }
            }
        }

        async loadMsgData(type) {
            const list = document.getElementById('gm-msg-list');
            if(!list) return;

            if (!this.client.token) {
                list.innerHTML = '<div style="text-align:center;padding:100px 0;color:#999">请先登录</div>';
                return;
            }

            list.innerHTML = '<div style="text-align:center;padding:50px;color:#999">加载中...</div>';
            const msgs = await this.client.fetchMessages(type);

            if (!msgs || msgs.length === 0) {
                list.innerHTML = '<div style="text-align:center;padding:100px 0;color:#999">暂无消息</div>';
                return;
            }

            list.innerHTML = msgs.map(msg => {
                const user = {
                    nickName: msg.nickName || '系统',
                    headPic: msg.headPic || 'https://www.gululu.world/favicon.ico'
                };
                // 时间格式化
                const date = new Date(msg.createTime);
                const timeStr = `${date.getMonth()+1}-${date.getDate()} ${date.getHours()}:${date.getMinutes().toString().padStart(2,'0')}`;

                // 构建跳转链接
                let jumpUrl = '';
                if(msg.opusId) {
                    jumpUrl = `/book/${msg.opusId}`;
                    if(msg.floorId) jumpUrl += `?floorId=${msg.floorId}`;
                }

                return `
                    <div class="gm-msg-card" onclick="${jumpUrl ? `window.location.href='${jumpUrl}'` : ''}">
                        <img src="${user.headPic}" class="gm-msg-avatar">
                        <div class="gm-msg-body">
                            <div class="gm-msg-top">
                                <span class="gm-msg-user">${user.nickName}</span>
                                <span class="gm-msg-time">${timeStr}</span>
                            </div>
                            <div class="gm-msg-content">${msg.content || '(无内容)'}</div>
                            ${msg.title ? `<div class="gm-msg-source">来源: ${msg.title}</div>` : ''}
                        </div>
                    </div>
                `;
            }).join('');
        }

        // === 书架逻辑 ===
        initShelfTab() {
            // 绑定视图切换
            const toggleBtn = this.root.querySelector('#gm-shelf-toggle');
            if (toggleBtn) {
                toggleBtn.onclick = () => {
                    this.shelfState.mode = this.shelfState.mode === 'list' ? 'grid' : 'list';
                    toggleBtn.innerHTML = this.shelfState.mode === 'list' ? '<span>列表</span> ☰' : '<span>网格</span> ☷';
                    this.renderShelf(); // 重新渲染，不重新请求
                };
            }
            this.loadShelfData();
        }

        async loadShelfData(isMore = false) {
            const container = document.getElementById('gm-shelf-container');
            if (!container) return;
            if (!this.client.token) {
                container.innerHTML = `
                    <div style="text-align:center;padding:150px 0;color:#999">
                        <div style="font-size:80px;margin-bottom:30px">🔒</div>
                        <div style="font-size:32px;margin-bottom:20px">请先登录</div>
                        <div class="gm-jump-btn" id="gm-shelf-login-btn" style="width:240px;margin:0 auto;padding:15px;font-size:28px">去登录</div>
                    </div>
                `;
                setTimeout(() => {
                    const btn = container.querySelector('#gm-shelf-login-btn');
                    if(btn) btn.onclick = () => this.initLoginModal();
                }, 0);
                return;
            }

            if (this.shelfState.loading || (!isMore && !this.shelfState.hasMore)) return;
            if (isMore && !this.shelfState.hasMore) return;

            this.shelfState.loading = true;

            const newItems = await this.client.fetchBookshelf(this.shelfState.page);

            if (newItems && newItems.length > 0) {
                this.shelfState.data = [...this.shelfState.data, ...newItems];
                this.shelfState.page++;
                this.renderShelf();
            } else {
                this.shelfState.hasMore = false;
                const noMoreEl = document.getElementById('gm-shelf-nomore');
                if(noMoreEl) noMoreEl.style.display = 'block';
                if(!isMore && this.shelfState.data.length === 0) {
                     container.innerHTML = '<div style="text-align:center;padding:150px 0;color:#999">书架空空如也</div>';
                }
            }
            this.shelfState.loading = false;
        }

        renderShelf() {
            const container = document.getElementById('gm-shelf-container');
            const data = this.shelfState.data;
            if(!container || data.length === 0) return;
            const PLACEHOLDER = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7";

            if (this.shelfState.mode === 'list') {
                container.className = 'gm-result-list'; // 复用列表容器样式
                container.innerHTML = data.map(book => {
                    const progress = book.readInFloorInt || 0;
                    const total = book.floorNum || 1;
                    const percent = Math.min(100, Math.round((progress / total) * 100));
                    return `
                        <div class="gm-res-card" onclick="window.location.href='/book/${book.opusId}'">
                            <img data-src="${book.coverPic || book.image}" src="${PLACEHOLDER}" class="gm-res-book-cover lazy-load">
                            <div class="gm-res-book-info">
                                <div>
                                    <div class="gm-res-title">${book.opusName}</div>
                                    <div class="gm-res-author">
                                        <span>${book.nickName}</span>
                                    </div>
                                    <div class="gm-shelf-progress">
                                        <div class="gm-progress-bar"><div class="gm-progress-fill" style="width:${percent}%"></div></div>
                                        <span class="gm-shelf-progress-num">${progress}/${total}</span>
                                    </div>
                                </div>
                                <div class="gm-res-meta-shelf">
                                    <span>${book.updateTime.split(' ')[0]} 更新</span>
                                    ${book.enReadFloorInt > book.readInFloorInt ? '<span style="color:#ff4757">● 有新内容</span>' : ''}
                                </div>
                            </div>
                        </div>
                    `;
                }).join('');
            } else {
                container.className = 'gm-shelf-grid';
                container.innerHTML = data.map(book => {
                     const hasNew = book.enReadFloorInt > book.readInFloorInt;
                     return `
                        <div class="gm-grid-item" onclick="window.location.href='/book/${book.opusId}'">
                            <img data-src="${book.coverPic || book.image}" src="${PLACEHOLDER}" class="gm-grid-cover lazy-load">
                            <div class="gm-grid-overlay">
                                <div class="gm-grid-title">${book.opusName}</div>
                                <div class="gm-grid-info">
                                    <span>${book.readInFloorInt}/${book.floorNum}</span>
                                </div>
                            </div>
                            ${hasNew ? '<div class="gm-grid-badge">NEW</div>' : ''}
                        </div>
                     `;
                }).join('');
            }
            // 更新统计
            const statEl = document.getElementById('gm-shelf-stat');
            if(statEl) statEl.innerText = `我的书架 (${data.length})`;
            this.observeNewImages(container);
        }

        // === 我的作品逻辑 ===
        initWorksTab() {
            this.loadWorksData();
        }

        async loadWorksData() {
            const container = document.getElementById('gm-works-list');
            if (!container) return;

            if (!this.client.token) {
                container.innerHTML = `
                    <div style="text-align:center;padding:150px 0;color:#999">
                        <div style="font-size:80px;margin-bottom:30px">🔒</div>
                        <div style="font-size:32px;margin-bottom:20px">请先登录</div>
                        <div class="gm-jump-btn" id="gm-works-login-btn" style="width:240px;margin:0 auto;padding:15px;font-size:28px">去登录</div>
                    </div>
                `;
                setTimeout(() => {
                    const btn = container.querySelector('#gm-works-login-btn');
                    if (btn) btn.onclick = () => this.initLoginModal();
                }, 0);
                return;
            }

            container.innerHTML = '<div style="text-align:center;padding:50px;color:#999">加载中...</div>';

            const works = await this.client.fetchMyWorks();

            if (!works || works.length === 0) {
                container.innerHTML = '<div style="text-align:center;padding:150px 0;color:#999">暂无作品</div>';
                return;
            }

            // 按更新时间降序排序
            works.sort((a, b) => {
                const tA = new Date(a.updateTime.replace(/-/g, '/')).getTime();
                const tB = new Date(b.updateTime.replace(/-/g, '/')).getTime();
                return tB - tA;
            });

            const PLACEHOLDER = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7";
            container.innerHTML = works.map(w => `
                <div class="gm-res-card gm-work-card" onclick="window.location.href='/book/${w.opusId}'">
                    <div class="gm-work-header">
                         <img data-src="${w.coverPic || w.opusCoverPic || 'https://www.gululu.world/favicon.ico'}" src="${PLACEHOLDER}" class="gm-work-cover lazy-load">
                         <div class="gm-work-main">
                             <div class="gm-work-title">${w.opusName}</div>
                             <div class="gm-work-intro">${w.oneLineText || '暂无简介'}</div>
                         </div>
                    </div>
                    <div class="gm-work-stats">
                        <div class="gm-stat-item">
                            <div class="gm-stat-num">${this.formatNum(w.words)}</div>
                            <div class="gm-stat-label">字数</div>
                        </div>
                        <div class="gm-stat-item">
                            <div class="gm-stat-num">${this.formatNum(w.readNum)}</div>
                            <div class="gm-stat-label">热度</div>
                        </div>
                        <div class="gm-stat-item">
                            <div class="gm-stat-num">${this.formatNum(w.collectNum)}</div>
                            <div class="gm-stat-label">收藏</div>
                        </div>
                         <div class="gm-stat-item">
                            <div class="gm-stat-num">${this.formatNum(w.commentNum)}</div>
                            <div class="gm-stat-label">评论</div>
                        </div>
                         <div class="gm-stat-item">
                            <div class="gm-stat-num">${w.floorNum}</div>
                            <div class="gm-stat-label">楼层</div>
                        </div>
                        <div class="gm-stat-item">
                             <div class="gm-stat-num gm-work-id">ID<br>${w.opusId}</div>
                        </div>
                    </div>
                    <div class="gm-work-footer">
                        <span>🕒 最后更新: ${w.updateTime}</span>
                    </div>
                </div>
            `).join('');
            this.observeNewImages(container);
        }

        formatNum(num) {
            if (!num) return '0';
            if (num > 10000) return (num / 10000).toFixed(1) + 'w';
            return num;
        }

        // === 排行榜逻辑 ===
        initRankTab() {
            const tabsContainer = this.root.querySelector('#gm-rank-tabs');
            if(!tabsContainer) return; // 尚未渲染

            // 绑定 Tab 点击
            const tabs = tabsContainer.querySelectorAll('.gm-sub-tab');
            tabs.forEach(tab => {
                tab.onclick = () => {
                    const type = tab.dataset.type;
                    if(this.rankState.type === type) return;

                    // 切换高亮
                    tabs.forEach(t => t.classList.remove('active'));
                    tab.classList.add('active');

                    // 重置状态
                    this.rankState.type = type;
                    this.rankState.page = 1;
                    this.rankState.hasMore = true;
                    this.rankState.loading = false;

                    // 清空列表
                    document.getElementById('gm-rank-list').innerHTML = '<div style="text-align:center;padding:50px;color:#999">加载中...</div>';
                    document.getElementById('gm-rank-nomore').style.display = 'none';

                    this.loadRankData();
                };
            });

            // 初始加载
            this.loadRankData();
        }

        async loadRankData(isMore = false) {
            if (this.rankState.loading || (!isMore && !this.rankState.hasMore)) return;
            if (isMore && !this.rankState.hasMore) return;

            this.rankState.loading = true;
            const list = document.getElementById('gm-rank-list');
            const type = this.rankState.type;

            // 如果是第一页，清空列表 (防止初始的"加载中"残留)
            if (!isMore && this.rankState.page === 1) {
                // list.innerHTML = ''; // 保持"加载中"提示直到数据回来
            }

            let items = [];

            try {
                if (type === 'NEW') {
                    // 新人榜无分页，一次性加载
                    if (this.rankState.page > 1) {
                        this.rankState.hasMore = false;
                    } else {
                        items = await this.client.fetchNewcomerRank();
                        this.rankState.hasMore = false; // 新人榜只有一页
                    }
                } else {
                    // 其他榜单
                    let sortId = 0;
                    if (type === 'UPDATE') sortId = 1;
                    else if (type === 'RELEASE') sortId = 2;
                    else if (type === 'VIEW') sortId = 0;

                    items = await this.client.fetchRankList(sortId, this.rankState.page);

                    if (!items || items.length === 0) {
                        this.rankState.hasMore = false;
                    } else {
                        this.rankState.page++;
                    }
                }
            } catch(e) {
                console.error(e);
                this.rankState.hasMore = false;
            }

            // 渲染
            if (!isMore && list.querySelector('div[style*="text-align:center"]')) {
                list.innerHTML = '';
            }

            if (items && items.length > 0) {
                const PLACEHOLDER = "data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7";
                const html = items.map(item => `
                    <div class="gm-res-card" onclick="window.location.href='/book/${item.opusId}'">
                        <img data-src="${item.coverPic || item.opusCoverPic}" src="${PLACEHOLDER}" class="gm-res-book-cover lazy-load">
                        <div class="gm-res-book-info">
                            <div>
                                <div class="gm-res-title">${item.opusName}</div>
                                <div class="gm-res-author">
                                    <span>${item.nickName || item.authorName}</span>
                                </div>
                                <div class="gm-res-tags">
                                    ${item.tagNames ? item.tagNames.split(' ').map(t => `<span class="gm-res-tag">${t}</span>`).join('') : ''}
                                </div>
                            </div>
                            <div class="gm-res-meta-bottom">
                                ${item.words}字 · ${item.readNum}热度 · ${item.updateTime}
                            </div>
                        </div>
                    </div>
                `).join('');
                list.insertAdjacentHTML('beforeend', html);
                this.observeNewImages(list); // 监听新加入的图片
            } else if (!isMore) {
                list.innerHTML = '<div style="text-align:center;padding:50px;color:#999">暂无数据</div>';
            }

            if (!this.rankState.hasMore) {
                document.getElementById('gm-rank-nomore').style.display = 'block';
            }

            this.rankState.loading = false;
        }

        async fetchOpusAggregated(keyword) {
            const list = document.getElementById('gm-res-list');
            list.innerHTML = '<div style="text-align:center;padding:50px;color:#999">正在聚合全站数据...<br><span style="font-size:24px;color:#ccc">请求前10页</span></div>';

            // 1. 并发请求前10页
            const promises = [];
            for (let i = 1; i <= 10; i++) {
                promises.push(this.client.searchGeneral(keyword, 'OPUS', i));
            }
            const results = await Promise.all(promises);

            // 2. 合并结果
            let allItems = [];
            results.forEach(res => {
                if (res && res.items) allItems.push(...res.items);
            });

            // 3. 客户端筛选 (字数)
            const minWords = this.searchOptions.minWords;
            if (minWords > 0) {
                allItems = allItems.filter(item => (item.words || 0) >= minWords);
            }

            // 4. 客户端排序
            if (this.searchOptions.sort === 'time') {
                allItems.sort((a, b) => {
                    const tA = new Date(a.updateTime.replace(/-/g, '/')).getTime();
                    const tB = new Date(b.updateTime.replace(/-/g, '/')).getTime();
                    return tB - tA; // 降序
                });
            } else {
                // 默认排序
            }

            return allItems;
        }

        // 辅助：渲染高亮数组 [{text, color}, ...]
        renderHl(hlArr, defaultText) {
            if (!hlArr || hlArr.length === 0) return defaultText;
            return hlArr.map(h => `<span style="color:${h.color === '#FF4532' ? '#e17055' : 'inherit'};font-weight:${h.color === '#FF4532' ? 'bold' : 'normal'}">${h.text}</span>`).join('');
        }

        // 辅助：简单高亮 (用于用户搜索)
        highlight(text, key) {
            if(!key) return text;
            return text.replace(new RegExp(key, 'gi'), match => `<span style="color:#e17055;font-weight:bold">${match}</span>`);
        }

        // 辅助：渲染标签 (标签也是高亮数组格式)
        renderTagsHtml(hlArr, rawStr) {
            if (!hlArr || hlArr.length === 0) {
                return rawStr ? rawStr.split(' ').map(t => `<span class="gm-res-tag">${t}</span>`).join('') : '';
            }
            return rawStr.split(' ').map(t => `<span class="gm-res-tag">${t}</span>`).join('');
        }

        switchTab(tabId) {
            if (this.activeTab === tabId) return;
            this.activeTab = tabId;

            // 如果切换到消息页，立即刷新一下未读数
            if (tabId === 'msg') {
                this.updateMsgBadges();
            }

            // 更新底部高亮
            this.root.querySelectorAll('.gm-tab-item').forEach(el => {
                el.classList.toggle('active', el.dataset.tab === tabId);
            });

            // 更新内容显示
            this.root.querySelectorAll('.gm-tab-content').forEach(el => {
                el.classList.toggle('active', el.id === `gm-tab-content-${tabId}`);
            });
        }
    }

	// ==========================================
	// 4. 稳健启动
	// ==========================================
	const client = new GululuApiClient();

	const startApp = () => {
		const path = window.location.pathname;

		// 🏠 场景 A：首页 App 模式
		if (path === '/' || path === '' || path === '/index.html') {
			// 尝试初始化数据以获取 Token
			client.initData();
			const ui = new MobileHomeUI(client);
			ui.init();
			return;
		}

		// 📖 场景 B：阅读器模式
		if (path.startsWith('/book/')) {
			const initialFloors = client.initData();
			if (initialFloors) {
				const ui = new MobileUI(client);
				ui.init(initialFloors);
			} else {
				setTimeout(() => {
					const retryFloors = client.initData();
					if (retryFloors) {
						const ui = new MobileUI(client);
						ui.init(retryFloors);
					} else {
						let attempts = 0;
						const poller = setInterval(() => {
							const f = client.initData();
							if (f) {
								clearInterval(poller);
								const ui = new MobileUI(client);
								ui.init(f);
							}
							if (++attempts > 20) clearInterval(poller);
						}, 500);
					}
				}, 500);
			}
		}
	};

	if (document.readyState === 'loading') {
		document.addEventListener('DOMContentLoaded', startApp);
	} else {
		startApp();
	}

})();