.tw-tool-wrapper { --p-bg: #ffffff; --p-border: #e2e8f0; --p-primary: #1d9bf0; --p-text: #0f172a; width: 100%; max-width: 1300px; margin: 0 auto; background: var(--p-bg); border-radius: 20px; padding: 24px; border: 1px solid var(--p-border); box-shadow: 0 10px 25px -5px rgba(0,0,0,0.05); box-sizing: border-box; }
.tw-header-main { font-size: 1.6rem; font-weight: 800; color: var(--p-text); margin-bottom: 8px; text-align: center; }
.tw-subtitle { color: #64748b; font-size: 0.95rem; padding-bottom: 20px; border-bottom: 1px solid var(--p-border); margin-bottom: 24px; text-align: center; max-width: 800px; margin-left: auto; margin-right: auto; line-height: 1.6; }

/* 上下结构单栏布局 */
.tw-layout { display: flex; flex-direction: column; gap: 24px; }

/* 面板样式 */
.tw-panel { display: flex; flex-direction: column; background: #f8fafc; border: 1px solid var(--p-border); border-radius: 16px; overflow: hidden; padding: 0; box-sizing: border-box; }
.tw-preview-panel { background: #eef2f5; padding: 24px; display: flex; align-items: center; justify-content: flex-start; flex-direction: column; box-sizing: border-box; }
.tw-panel-title { font-size: 1.05rem; font-weight: 700; color: #334155; padding: 20px; border-bottom: 1px solid var(--p-border); background: #ffffff; margin: 0; }

/* 配置区的多列网格布局 */
.tw-config-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; padding: 24px; box-sizing: border-box; }
.tw-config-section { display: flex; flex-direction: column; }
.tw-section-title { font-size: 0.95rem; font-weight: 700; color: #475569; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; border-bottom: 1px dashed #cbd5e1; padding-bottom: 10px; }

.tw-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.tw-form-group { display: flex; flex-direction: column; margin-bottom: 12px; }
.tw-label { font-size: 0.85rem; font-weight: 600; color: #64748b; margin-bottom: 6px; }

.tw-input, .tw-select, .tw-textarea { width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid #cbd5e1; background: #ffffff; color: var(--p-text); font-size: 0.95rem; outline: none; transition: 0.2s; box-sizing: border-box; }
.tw-textarea { resize: vertical; min-height: 100px; font-family: inherit; }
.tw-input:focus, .tw-select:focus, .tw-textarea:focus { border-color: var(--p-primary); box-shadow: 0 0 0 3px rgba(29, 155, 240, 0.15); }

/* 前缀输入框 */
.tw-input-prefix { display: flex; align-items: stretch; }
.tw-input-prefix span { display: flex; align-items: center; padding: 0 12px; background: #f1f5f9; border: 1px solid #cbd5e1; border-right: none; border-radius: 8px 0 0 8px; color: #64748b; font-weight: bold; }

/* 文件上传 */
.tw-file-upload { display: block; width: 100%; border: 1px dashed #94a3b8; background: #ffffff; border-radius: 8px; padding: 10px; text-align: center; cursor: pointer; transition: 0.2s; box-sizing: border-box; }
.tw-file-upload:hover { border-color: var(--p-primary); background: #f0f9ff; color: var(--p-primary); }
.tw-file-upload input[type="file"] { display: none; }
.tw-file-upload span { font-size: 0.85rem; font-weight: 600; color: #475569; }

/* 悬浮式主题配置栏 */
.tw-theme-picker-bar { display: flex; align-items: center; justify-content: center; gap: 16px; margin-top: 24px; padding: 12px 24px; background: #ffffff; border: 1px solid var(--p-border); border-radius: 12px; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05); box-sizing: border-box; width: 100%; max-width: 600px; }
.tw-theme-label { font-weight: 700; color: #475569; font-size: 0.95rem; white-space: nowrap; }
.tw-theme-picker { display: flex; gap: 12px; flex: 1; min-width: 250px; }
.tw-theme-option { flex: 1; padding: 10px; text-align: center; border-radius: 8px; font-weight: bold; font-size: 0.9rem; cursor: pointer; transition: 0.2s; border: 2px solid transparent; box-sizing: border-box; }
.tw-theme-option:hover { transform: translateY(-2px); }
.tw-theme-option.active { box-shadow: 0 4px 12px rgba(0,0,0,0.1); }

/* 按钮 */
.tw-btn-primary { background: var(--p-primary); color: white; border: none; padding: 10px 20px; border-radius: 20px; font-weight: 700; font-size: 0.95rem; cursor: pointer; transition: 0.2s; display: flex; align-items: center; gap: 6px; box-shadow: 0 4px 12px rgba(29, 155, 240, 0.3); }
.tw-btn-primary:hover { background: #1a8cd8; transform: translateY(-1px); }
.tw-btn-sm { padding: 6px 12px; font-size: 0.8rem; border-radius: 6px; cursor: pointer; font-weight: 600; }
.tw-btn-outline { background: transparent; border: 1px solid #ef4444; color: #ef4444; }
.tw-btn-outline:hover { background: #fef2f2; }

/* ================= 黑夜模式 (工具自身外壳适配) ================= */
[data-theme="dark"] .tw-tool-wrapper { background: #1e293b; border-color: #334155; }
[data-theme="dark"] .tw-header-main, [data-theme="dark"] .tw-panel-title { color: #f8fafc; }
[data-theme="dark"] .tw-panel { background: #0f172a; border-color: #475569; }
[data-theme="dark"] .tw-panel-title { background: #1e293b; border-bottom-color: #475569; }
[data-theme="dark"] .tw-preview-panel { background: #020617; }
[data-theme="dark"] .tw-section-title { border-bottom-color: #334155; }
[data-theme="dark"] .tw-label { color: #cbd5e1; }
[data-theme="dark"] .tw-input, [data-theme="dark"] .tw-select, [data-theme="dark"] .tw-textarea { background: #020617; border-color: #475569; color: #f8fafc; }
[data-theme="dark"] .tw-input-prefix span { background: #1e293b; border-color: #475569; }
[data-theme="dark"] .tw-file-upload { background: #1e293b; border-color: #475569; }
[data-theme="dark"] .tw-theme-picker-bar { background: #0f172a; border-color: #475569; }
[data-theme="dark"] .tw-theme-label { color: #cbd5e1; }

/* =======================================================
   独立封装的 X(Twitter) 贴文渲染引擎 (严格隔离外部干扰)
   ======================================================= */
.tw-preview-container { width: 100%; display: flex; justify-content: center; margin-top: 20px; overflow: hidden; box-sizing: border-box; }

.tw-mockup-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    width: 100%;
    max-width: 600px;
    border-radius: 16px;
    padding: 16px;
    box-sizing: border-box;
    transition: background-color 0.3s;
    --tw-bg: #ffffff;
    --tw-text: #0f1419;
    --tw-text-dim: #536471;
    --tw-border: #eff3f4;
}

.tw-mockup-wrapper[data-tw-theme="dim"] { --tw-bg: #15202b; --tw-text: #ffffff; --tw-text-dim: #8b98a5; --tw-border: #38444d; }
.tw-mockup-wrapper[data-tw-theme="dark"] { --tw-bg: #000000; --tw-text: #e7e9ea; --tw-text-dim: #71767b; --tw-border: #2f3336; }

.tw-mockup-wrapper { background-color: var(--tw-bg); border: 1px solid var(--tw-border); }
.tw-mockup-header { display: flex; align-items: center; margin-bottom: 12px; position: relative; }
.tw-mockup-avatar { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; margin-right: 12px; flex-shrink: 0; }
.tw-mockup-user-info { display: flex; flex-direction: column; justify-content: center; overflow: hidden; padding-right: 30px; }
.tw-mockup-name-row { display: flex; align-items: center; }
.tw-mockup-name { font-weight: 700; font-size: 15px; color: var(--tw-text); line-height: 20px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 200px; }
.tw-mockup-badge { margin-left: 4px; display: flex; align-items: center; flex-shrink: 0; }
.tw-mockup-badge svg { width: 18.75px; height: 18.75px; }
.tw-mockup-handle { color: var(--tw-text-dim); font-size: 15px; line-height: 20px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.tw-mockup-dots { position: absolute; right: 0; top: 0; padding: 8px; }
.tw-mockup-dots svg { width: 18.75px; height: 18.75px; fill: var(--tw-text-dim); }

/* 关键修复：防止长链接和乱码撑破正文区 */
.tw-mockup-body { font-size: 17px; line-height: 24px; color: var(--tw-text); white-space: pre-wrap; margin-bottom: 12px; word-break: break-word; overflow-wrap: break-word; }

.tw-mockup-media { margin-bottom: 12px; border-radius: 16px; border: 1px solid var(--tw-border); overflow: hidden; }
.tw-mockup-media img { width: 100%; display: block; object-fit: cover; max-height: 500px; }

.tw-mockup-meta { font-size: 15px; color: var(--tw-text-dim); margin-bottom: 16px; display: flex; align-items: center; flex-wrap: wrap; }
.tw-mockup-meta .tw-dot { padding: 0 4px; }
.tw-mockup-views { font-weight: 700; color: var(--tw-text); }
.tw-views-label { font-weight: 400; color: var(--tw-text-dim); }

.tw-mockup-divider { height: 1px; background-color: var(--tw-border); margin: 0; }

.tw-mockup-stats { display: flex; flex-wrap: wrap; gap: 20px; padding: 16px 4px; }
.tw-stat-item { font-size: 15px; display: flex; gap: 4px; white-space: nowrap; }
.tw-stat-val { font-weight: 700; color: var(--tw-text); }
.tw-stat-label { color: var(--tw-text-dim); }

.tw-mockup-actions { display: flex; justify-content: space-around; padding: 12px 0 4px 0; }
.tw-mockup-actions svg { width: 22.5px; height: 22.5px; fill: var(--tw-text-dim); flex-shrink: 0; }

/* ================= 移动端强力自适应适配 ================= */
@media (max-width: 650px) {
    .tw-tool-wrapper { padding: 16px; }
    .tw-preview-panel { padding: 16px 12px; }
    .tw-panel-title { padding: 16px; font-size: 1rem; }
    
    /* 表单配置区降级为单列 */
    .tw-config-grid { grid-template-columns: 1fr; padding: 16px; gap: 16px; }
    .tw-form-row { grid-template-columns: 1fr; gap: 12px; }
    
    /* 缩小预览外壳的边距 */
    .tw-mockup-wrapper { padding: 12px; border-radius: 12px; }
    
    /* 极小屏幕下名字进一步缩短保护 */
    .tw-mockup-name { max-width: 140px; }
    
    /* 统计数据栏允许折行显示 */
    .tw-mockup-stats { gap: 12px 16px; justify-content: flex-start; padding: 12px 4px; }
    
    /* 操作按钮栏缩小内边距 */
    .tw-mockup-actions { padding: 10px 0 0 0; }
    
    /* 悬浮主题栏降级为竖向堆叠 */
    .tw-theme-picker-bar { flex-direction: column; gap: 12px; padding: 16px; }
    .tw-theme-picker { width: 100%; min-width: auto; }
}