/* ============================================================
   Markdown转档工具 - 专属样式
   导航/页脚样式由官网 ../../style.css 全权决定，此处不重复定义；
   以下仅包含工具页面专属区块 + 照抄官网首页内联<style>的
   移动端适配规则（768px 导航纵向下拉 / 1024px 页脚两列）。
   ============================================================ */

/* ===== 照抄官网移动端适配（nav/footer） ===== */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0; right: 0;
        background: white;
        flex-direction: column;
        padding: 16px 24px;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        gap: 4px;
        border-bottom: 1px solid var(--border);
    }
    .nav-links.active { display: flex; }
    .mobile-toggle { display: flex; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ===== 页面头 ===== */
.tool-header {
    padding: 120px 0 36px;
    background: linear-gradient(180deg, #f0f5ff 0%, #ffffff 100%);
    text-align: center;
}
.tool-header h1 {
    font-size: clamp(26px, 4vw, 38px);
    font-weight: 900;
    color: var(--text);
    margin-bottom: 12px;
}
.tool-header h1 .ver {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    background: var(--primary-light);
    padding: 4px 12px;
    border-radius: 100px;
    vertical-align: middle;
    margin-left: 8px;
}
.tool-header p {
    font-size: 15px;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto 18px;
    line-height: 1.8;
}
.tool-badges {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}
.tbadge {
    font-size: 12px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: 100px;
}
.tbadge-blue   { background: #e8f1ff; color: #1a6eff; }
.tbadge-green  { background: #f0fdf4; color: #16a34a; }
.tbadge-orange { background: #fff3ed; color: #ff6b35; }
.tbadge-purple { background: #f5f3ff; color: #7c3aed; }

/* ===== 工具主体布局 ===== */
.tool-main { padding: 32px 0 80px; background: var(--bg-warm); }
.tool-container { max-width: 1280px; }

/* ===== 工具栏 ===== */
.toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px 12px 0 0;
    padding: 10px 14px;
    border-bottom: none;
}
.toolbar-group { display: flex; gap: 6px; flex-wrap: wrap; }
.toolbar-divider { width: 1px; height: 24px; background: var(--border); }
.tbtn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border: 1.5px solid var(--border);
    background: white;
    border-radius: 8px;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}
.tbtn svg { width: 15px; height: 15px; flex-shrink: 0; }
.tbtn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
    transform: translateY(-1px);
}
.tbtn:active { transform: translateY(0); }
.tbtn-primary {
    background: var(--primary-gradient);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(26, 110, 255, 0.25);
}
.tbtn-primary:hover {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 6px 16px rgba(26, 110, 255, 0.35);
    transform: translateY(-1px);
}
.tbtn-danger:hover {
    border-color: var(--danger);
    color: var(--danger);
    background: var(--danger-light);
}

/* ===== 视图切换条 ===== */
.view-switch-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-top: 1px dashed var(--border);
    padding: 8px 14px;
}
.view-switch {
    display: none;
    background: var(--bg-warm);
    border-radius: 8px;
    padding: 3px;
    gap: 3px;
}
.vs-btn {
    border: none;
    background: transparent;
    font-family: inherit;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-light);
    padding: 5px 14px;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
}
.vs-btn.active { background: white; color: var(--primary); box-shadow: 0 2px 8px rgba(0,0,0,0.08); }
.sync-scroll {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-light);
    cursor: pointer;
    user-select: none;
    margin-left: auto;
}
.sync-scroll input { accent-color: var(--primary); cursor: pointer; }

/* ===== 编辑/预览工作台 ===== */
.workbench {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-top: none;
    min-height: 560px;
}
.pane { display: flex; flex-direction: column; min-height: 0; min-width: 0; }
.pane-editor { border-right: 1px solid var(--border); }
.pane-title {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-light);
    padding: 8px 14px;
    background: var(--bg-warm);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    min-width: 0;
    overflow: hidden;
}
.pane-title .lib-status {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.pane-title svg { color: var(--primary); }
.lib-status { margin-left: auto; font-weight: 500; font-size: 11px; }
.lib-status.ok { color: var(--success); }
.lib-status.warn { color: var(--warning); }

#editor {
    flex: 1;
    width: 100%;
    min-width: 0;
    max-width: 100%;
    border: none;
    outline: none;
    resize: none;
    padding: 16px;
    font-family: 'JetBrains Mono', 'Noto Sans SC', Consolas, monospace;
    font-size: 13.5px;
    line-height: 1.75;
    color: var(--text);
    background: #fbfcfe;
    tab-size: 4;
}
#editor::placeholder { color: var(--text-light); }

.preview-body {
    flex: 1;
    min-width: 0;
    overflow-y: auto;
    padding: 16px 22px;
    font-size: 14.5px;
    line-height: 1.8;
}

/* ===== 状态栏 ===== */
.statusbar {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-top: none;
    border-radius: 0 0 12px 12px;
    padding: 8px 16px;
    font-size: 12px;
    color: var(--text-light);
}
.statusbar-right { margin-left: auto; }

/* ===== Markdown 预览排版（亮色主题） ===== */
.markdown-body { color: var(--text); word-break: break-word; }
.markdown-body h1, .markdown-body h2, .markdown-body h3,
.markdown-body h4, .markdown-body h5, .markdown-body h6 {
    font-weight: 800;
    line-height: 1.4;
    margin: 1.2em 0 0.6em;
    color: var(--text);
}
.markdown-body h1 { font-size: 1.7em; padding-bottom: 0.3em; border-bottom: 2px solid var(--border); }
.markdown-body h2 { font-size: 1.45em; padding-bottom: 0.25em; border-bottom: 1px solid var(--border); }
.markdown-body h3 { font-size: 1.2em; }
.markdown-body h4 { font-size: 1.05em; }
.markdown-body p { margin: 0.8em 0; }
.markdown-body a { color: var(--primary); text-decoration: none; }
.markdown-body a:hover { text-decoration: underline; }
.markdown-body strong { font-weight: 700; }
.markdown-body blockquote {
    margin: 1em 0;
    padding: 10px 16px;
    border-left: 4px solid var(--primary);
    background: var(--primary-light);
    border-radius: 0 8px 8px 0;
    color: var(--text-secondary);
}
.markdown-body blockquote p { margin: 0.3em 0; }
.markdown-body code {
    font-family: 'JetBrains Mono', Consolas, monospace;
    font-size: 0.88em;
    background: #eef1f6;
    color: #d63384;
    padding: 2px 6px;
    border-radius: 5px;
}
.markdown-body pre {
    margin: 1em 0;
    padding: 14px 16px;
    background: #f6f8fa;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow-x: auto;
}
.markdown-body pre code {
    background: transparent;
    color: inherit;
    padding: 0;
    font-size: 13px;
    line-height: 1.7;
}
.markdown-body ul, .markdown-body ol { margin: 0.7em 0; padding-left: 1.8em; }
.markdown-body li { margin: 0.3em 0; }
.markdown-body li.task-list-item { list-style: none; margin-left: -1.4em; }
.markdown-body li.task-list-item input { margin-right: 6px; accent-color: var(--primary); }
.markdown-body table {
    border-collapse: collapse;
    margin: 1em 0;
    width: 100%;
    display: block;
    overflow-x: auto;
}
.markdown-body th, .markdown-body td {
    border: 1px solid var(--border);
    padding: 8px 14px;
    font-size: 0.93em;
}
.markdown-body th { background: var(--bg-warm); font-weight: 700; }
.markdown-body tr:nth-child(even) td { background: #fafbfd; }
.markdown-body hr { border: none; border-top: 2px solid var(--border); margin: 1.6em 0; }
.markdown-body img { max-width: 100%; border-radius: 8px; }
.markdown-body del { color: var(--text-light); }

/* ===== 深色主题（编辑器 + 预览） ===== */
body.dark-theme #editor {
    background: #0d1220;
    color: #dbe4f5;
    caret-color: #60a5fa;
}
body.dark-theme .preview-body,
body.dark-theme .markdown-body { background: #101728; color: #d5deef; }
body.dark-theme .markdown-body h1,
body.dark-theme .markdown-body h2,
body.dark-theme .markdown-body h3,
body.dark-theme .markdown-body h4,
body.dark-theme .markdown-body h5,
body.dark-theme .markdown-body h6 { color: #f0f4fc; border-color: #2a3550; }
body.dark-theme .markdown-body p,
body.dark-theme .markdown-body li { color: #d5deef; }
body.dark-theme .markdown-body a { color: #60a5fa; }
body.dark-theme .markdown-body blockquote { background: rgba(26,110,255,0.1); border-color: #3b82f6; color: #9fb2d4; }
body.dark-theme .markdown-body code { background: #1c2740; color: #f472b6; }
body.dark-theme .markdown-body pre { background: #0d1424; border-color: #26324e; }
body.dark-theme .markdown-body th, body.dark-theme .markdown-body td { border-color: #2a3550; }
body.dark-theme .markdown-body th { background: #1a2338; }
body.dark-theme .markdown-body tr:nth-child(even) td { background: #141c30; }
body.dark-theme .markdown-body hr { border-color: #2a3550; }
body.dark-theme .markdown-body del { color: #6b7a99; }

/* ===== Toast 提示 ===== */
.toast {
    position: fixed;
    left: 50%;
    bottom: 40px;
    transform: translateX(-50%) translateY(20px);
    background: var(--text);
    color: white;
    font-size: 13px;
    font-weight: 500;
    padding: 10px 22px;
    border-radius: 100px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.25);
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 9999;
    max-width: calc(100vw - 48px);
    text-align: center;
}
.toast.show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }

/* ===== 功能说明区 ===== */
.feature-section { padding-top: 56px; }
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px 24px;
    transition: var(--transition);
}
.feature-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
    border-color: rgba(26, 110, 255, 0.2);
}
.f-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}
.f-icon svg { width: 24px; height: 24px; }
.f-blue   { background: #e8f1ff; color: #1a6eff; }
.f-orange { background: #fff3ed; color: #ff6b35; }
.f-green  { background: #f0fdf4; color: #16a34a; }
.f-purple { background: #f5f3ff; color: #7c3aed; }
.feature-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.8; }

/* ===== 打印样式（导出 PDF 时仅保留预览正文） ===== */
@media print {
    .navbar, .tool-header, .toolbar, .view-switch-bar,
    .pane-editor, .pane-title, .statusbar, .feature-section,
    .footer, .toast, .lib-status { display: none !important; }
    body { background: white; }
    .tool-main { padding: 0; background: white; }
    .workbench { display: block; border: none; min-height: auto; }
    .pane-preview { display: block; }
    .preview-body { overflow: visible; padding: 0; font-size: 12pt; }
    .markdown-body pre { white-space: pre-wrap; word-break: break-word; }
    .markdown-body table { display: table; }
}

/* ===== 响应式：平板 ===== */
@media (max-width: 1024px) {
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .tool-container { max-width: 100%; }
}

/* ===== 响应式：手机 ===== */
@media (max-width: 768px) {
    .tool-header { padding: 100px 0 28px; }
    .toolbar { gap: 6px; padding: 8px 10px; }
    .tbtn { padding: 8px 10px; }
    .tbtn-text { display: none; }
    .toolbar-divider { display: none; }
    .view-switch-bar { flex-wrap: wrap; }
    .view-switch { display: flex; width: 100%; }
    .vs-btn { flex: 1; }
    .sync-scroll { margin-left: 0; padding: 4px 0; }

    .workbench { grid-template-columns: 1fr; min-height: 70vh; }
    .pane-editor { border-right: none; }
    .workbench[data-view="split"] .pane-editor,
    .workbench[data-view="split"] .pane-preview { display: none; }
    .workbench[data-view="split"] .pane-editor { display: flex; }
    .workbench[data-view="edit"] .pane-preview { display: none; }
    .workbench[data-view="preview"] .pane-editor { display: none; }
    #editor { font-size: 13px; }
    .preview-body { font-size: 14px; padding: 14px 16px; }

    .statusbar { gap: 12px; }
    .statusbar-right { display: none; }
    .feature-grid { grid-template-columns: 1fr; }
    .feature-section { padding-top: 40px; }
}
@media (max-width: 480px) {
    .tbtn svg { width: 17px; height: 17px; }
    .tool-badges { gap: 6px; }
    .tbadge { font-size: 11px; padding: 4px 10px; }
}