* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    width: 100%;
    overflow: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    height: 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    background-color: #fff;
}

h2, h3 {
    color: #2c3e50;
    margin-bottom: 15px;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

input[type="text"],
input[type="password"],
textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.content-input {
    width: calc(100% - 20px);
    height: calc(100vh - 120px);
    padding: 10px;
    margin: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 16px;
    line-height: 1.5;
    resize: none;
    outline: none;
}

.content-display {
    padding: 10px;
    margin: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #fff;
    overflow-y: auto;
    height: calc(100vh - 120px);
}

.checkbox {
    display: flex;
    align-items: center;
}

.checkbox input {
    margin-right: 10px;
}

.checkbox label {
    margin-bottom: 0;
    font-weight: normal;
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 8px;
    margin-bottom: 15px;
}

.radio-option {
    display: flex;
    align-items: center;
}

.radio-option input[type="radio"] {
    margin-right: 8px;
}

.btn {
    display: inline-block;
    padding: 8px 16px;
    background-color: #e0e0e0;
    color: #333;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    text-decoration: none;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #d0d0d0;
}

.btn.primary {
    background-color: #3498db;
    color: white;
}

.btn.primary:hover {
    background-color: #2980b9;
}

.btn.small {
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid #ddd;
    cursor: pointer;
    font-size: 12px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
    min-width: auto;
    flex: 0 1 auto;
}

.btn.small i {
    font-size: 14px;
}

.form-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
}

.form-actions .btn {
    margin-left: 10px;
}

.note-content {
    flex: 1;
    display: flex;
    overflow: hidden;
    padding-bottom: 60px;
}

.note-footer {
    padding: 10px 15px;
    border-top: 1px solid #eee;
    background-color: #f8f9fa;
}

.note-info {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
}

.key-badge {
    font-weight: bold;
    color: #000000;
    display: inline-block;
    background-color: #5ca4d4;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
}

.public-badge {
    display: none;
}

.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.share-info {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
}

.share-info input {
    flex: 1;
    font-size: 14px;
    padding: 6px 10px;
}

.settings-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: white;
    z-index: 200;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

/* 设置分组卡片样式 */
.settings-section {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 16px;
}

.settings-section h4 {
    font-size: 14px;
    font-weight: 600;
    color: #495057;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 0;
    border-bottom: none;
}

.settings-section h4 i {
    color: #6c757d;
}

.settings-section .form-group {
    margin-bottom: 12px;
}

.settings-section .form-group:last-child {
    margin-bottom: 0;
}

/* 统一 radio/checkbox 样式 */
.settings-section .radio-option,
.settings-section .checkbox-option {
    padding: 8px 12px;
    border-radius: 6px;
    margin-bottom: 8px;
    transition: background 0.2s;
}

.settings-section .radio-option:hover,
.settings-section .checkbox-option:hover {
    background: #e9ecef;
}

.settings-section-danger {
    background: #fff8f8;
    border: 1px solid #ffe0e0;
}

.close-settings {
    font-size: 24px;
    cursor: pointer;
}

.password-options {
    margin-top: 10px;
}

.hidden {
    display: none !important;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background-color: white;
    border-radius: 8px;
    width: 90%;
    max-width: 450px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid #eee;
}

.modal-header h3 {
    margin: 0;
    font-size: 18px;
    color: #333;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 15px 20px;
    border-top: 1px solid #eee;
}

.close-modal {
    font-size: 24px;
    font-weight: bold;
    color: #999;
    cursor: pointer;
}

.close-modal:hover {
    color: #333;
}

.modal-body ul {
    margin: 15px 0;
    padding-left: 20px;
}

.modal-body li {
    margin-bottom: 8px;
}

.btn.info {
    background-color: #17a2b8;
    color: white;
    padding: 3px 8px;
    font-size: 14px;
}

.btn.info:hover {
    background-color: #138496;
}

.save-indicator {
    position: fixed;
    bottom: 70px;
    right: 20px;
    background-color: #28a745;
    color: white;
    padding: 8px 16px;
    border-radius: 4px;
    z-index: 1000;
    animation: fadeIn 0.3s, fadeOut 0.3s 1.7s;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.flash-messages {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    width: 90%;
    max-width: 400px;
}

.flash-message {
    padding: 10px 15px;
    background-color: #f8d7da;
    color: #721c24;
    border-radius: 4px;
    margin-bottom: 10px;
    text-align: center;
    animation: fadeIn 0.3s, fadeOut 0.3s 2.7s;
    animation-fill-mode: forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeOut {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(-10px); }
}

/* 移动端适配 */
@media (max-width: 768px) {
    .note-info {
        font-size: 12px;
    }
    
    .btn.small {
        padding: 8px 12px;
        font-size: 13px;
        flex: 1 1 calc(33.333% - 6px);
        justify-content: center;
    }
    
    .content-input, .content-display {
        font-size: 16px;
    }
    
    .note-actions {
        padding: 8px;
    }
    
    .share-info {
        margin-top: 10px;
    }
    
    .note-content {
        padding-bottom: 80px;
    }
}

/* 密码页面样式 */
.password-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.password-form {
    width: 90%;
    max-width: 400px;
    padding: 30px;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.key-display {
    margin-bottom: 20px;
}

.key-badge.large {
    font-size: 24px;
    padding: 8px 16px;
}

.btn.secondary {
    background-color: #6c757d;
    color: white;
}

.btn.secondary:hover {
    background-color: #5a6268;
}

.save-indicator.error {
    background-color: #dc3545;
}

/* Markdown样式 */
.markdown-body {
    line-height: 1.6;
    word-wrap: break-word;
    padding: 16px;
}

/* 表格样式 */
.markdown-body table {
    border-spacing: 0;
    border-collapse: collapse;
    margin: 1em 0;
    display: block;
    width: 100%;
    overflow: auto;
    border: 1px solid #dfe2e5;
    border-radius: 6px;
}

.markdown-body table th,
.markdown-body table td {
    padding: 6px 13px;
    border: 1px solid #dfe2e5;
}

.markdown-body table tr {
    background-color: #fff;
    border-top: 1px solid #c6cbd1;
}

.markdown-body table tr:nth-child(even) {
    background-color: #f6f8fa;
}

.markdown-body table thead tr {
    background-color: #f1f3f5;
}

.markdown-body table thead th {
    font-weight: 600;
    border-bottom: 2px solid #dfe2e5;
}

/* 段落和换行 */
.markdown-body p {
    margin-top: 0;
    margin-bottom: 16px;
}

.markdown-body br {
    display: block;
    content: "";
    margin: 8px 0;
}

/* 任务列表样式 */
.markdown-body input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    border: 1px solid #d1d5da;
    border-radius: 2px;
    width: 16px;
    height: 16px;
    margin: 0 8px 0 0;
    vertical-align: middle;
    position: relative;
    cursor: pointer;
}

.markdown-body input[type="checkbox"]:checked {
    background-color: #2188ff;
    border-color: #2188ff;
}

.markdown-body input[type="checkbox"]:checked::after {
    content: "";
    position: absolute;
    left: 4px;
    top: 1px;
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* 任务列表项样式 - pymdownx.tasklist */
.markdown-body .task-list-item {
    list-style-type: none;
    position: relative;
    padding-left: 0;
}

.markdown-body .task-list-item input[type="checkbox"] {
    pointer-events: none;
}

/* 高亮文本样式 - pymdownx.mark */
.markdown-body mark {
    background-color: #fff3bf;
    padding: 0.1em 0.3em;
    border-radius: 3px;
}

/* 上标/下标样式 - pymdownx.caret/tilde */
.markdown-body sup,
.markdown-body sub {
    font-size: 0.75em;
}

/* 脚注样式 */
.markdown-body .footnote {
    border-top: 1px solid #e1e4e8;
    margin-top: 2em;
    padding-top: 1em;
    font-size: 0.9em;
    color: #6a737d;
}

.markdown-body .footnote-ref {
    font-size: 0.75em;
    vertical-align: super;
    text-decoration: none;
}

.markdown-body .footnote-backref {
    font-size: 0.75em;
    text-decoration: none;
}

/* 警告框样式 */
.markdown-body .admonition {
    margin: 20px 0;
    padding: 15px 30px 15px 15px;
    border-left: 5px solid;
    border-radius: 4px;
}

.markdown-body .admonition.note {
    background-color: #e7f2fa;
    border-color: #2196f3;
}

.markdown-body .admonition.warning {
    background-color: #fff3e0;
    border-color: #ff9800;
}

.markdown-body .admonition.danger {
    background-color: #fde7e7;
    border-color: #f44336;
}

.markdown-body .admonition-title {
    font-weight: 600;
    margin: -15px -30px 15px -15px;
    padding: 8px 15px;
    background-color: rgba(0,0,0,0.05);
}

/* 定义列表样式 */
.markdown-body dt {
    font-weight: 600;
    margin-top: 16px;
}

.markdown-body dd {
    margin-left: 20px;
    padding-left: 20px;
    border-left: 3px solid #eee;
}

/* 代码高亮样式 */
.markdown-body pre {
    background-color: #f6f8fa;
    border-radius: 6px;
    padding: 16px;
    overflow: auto;
    font-size: 14px;
    line-height: 1.45;
}

.markdown-body pre code {
    background: none;
    padding: 0;
    font-size: inherit;
}

.markdown-body code {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 85%;
    padding: 0.2em 0.4em;
    margin: 0;
    border-radius: 3px;
    background-color: rgba(175, 184, 193, 0.2);
}

.markdown-body h1, h2, h3, h4, h5, h6 {
    border-bottom: 1px solid #313131 !important;
}

.markdown-body pre{
    padding: 1px !important;
}

.markdown-body blockquote {
    /* line-height: 1.2rem !important; */
    margin: 0;
    font-size: 12px !important;
    border-radius: 4px;
    color: #e1e4e8 !important;
    background-color: #24292e !important;
    border-left: .25em solid #1871c9 !important;
}

/* 数学公式样式 */
.markdown-body .math {
    overflow-x: auto;
    margin: 16px 0;
}

.markdown-body .math-inline {
    padding: 0 3px;
}

#editor-container, #preview-container {
    flex: 1;
    height: 100%;
}

/* 悬浮效果 */
.note-footer.floating {
    position: fixed;
    bottom: 10px;
    left: 10px;
    right: 10px;
    /* background-color: rgba(255, 255, 255, 0.95); */
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    padding: 10px;
    z-index: 100;
    backdrop-filter: blur(5px);
    transition: transform 0.3s ease;
    border-radius: 8px;
    width: calc(100% - 20px);
}

/* 在移动设备上调整悬浮效果 */
@media (max-width: 768px) {
    .note-footer.floating {
        padding: 8px 10px;
    }
    
    .note-footer.floating .note-info {
        font-size: 12px;
    }
    
    .note-footer.floating .btn.small {
        padding: 4px 8px;
        font-size: 12px;
    }
}

/* 当用户向下滚动时隐藏底部栏 */
.note-footer.floating.hidden-footer {
    transform: translateY(100%);
}

/* 调整内容区域，为悬浮底部栏留出空间 */
.note-content {
    padding-bottom: 60px;
}

@media (max-width: 768px) {
    .note-content {
        padding-bottom: 80px;
    }
}

/* 状态标识样式 */
.status-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    color: white;
    margin-left: 10px;
    margin-right: 10px;
}

.status-badge.private {
    background-color: #dc3545; /* 红色 */
}

.status-badge.protected {
    background-color: #fd7e14; /* 橙色 */
}

.status-badge.public {
    background-color: #28a745; /* 绿色 */
}

/* 表单帮助文本样式 */
.form-help {
    font-size: 13px;
    color: #666;
    margin-top: 8px;
    margin-left: 24px;
}

/* 禁用状态样式 */
.disabled-option {
    opacity: 0.5;
    cursor: not-allowed;
}

#preview-container {
    /* height: calc(100vh - 120px); */
    overflow-y: auto;
}

/* 警告文本样式 */
.warning-text {
    color: #dc3545;
    font-weight: 500;
}

/* 按钮样式 */
.btn.danger {
    background-color: #dc3545;
    color: white;
}

.btn.danger:hover {
    background-color: #c82333;
}

/* 全宽输入框 */
.full-width {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin-top: 5px;
}

/* 错误消息 */
.error-message {
    color: #dc3545;
    font-size: 14px;
    margin-top: 5px;
}

/* 分享选项样式 */
.share-option {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.share-option:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.share-option h4 {
    margin-top: 0;
    margin-bottom: 10px;
    color: #333;
}

.share-link-container {
    display: flex;
    margin-bottom: 8px;
}

.share-link-container input {
    flex: 1;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px 0 0 4px;
    font-size: 14px;
}

.share-link-container button {
    border-radius: 0 4px 4px 0;
    margin-left: -1px;
}

/* 按钮样式调整 */
.btn.full-width {
    display: block;
    text-align: center;
    margin-bottom: 8px;
}

/* 模态框样式调整 */
.modal-content {
    background-color: white;
    border-radius: 8px;
    width: 90%;
    max-width: 450px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid #eee;
}

.modal-header h3 {
    margin: 0;
    font-size: 18px;
    color: #333;
}

.modal-body {
    padding: 20px;
}

.close-modal {
    font-size: 24px;
    font-weight: bold;
    color: #999;
    cursor: pointer;
}

.close-modal:hover {
    color: #333;
}

/* 通知样式调整 */
.save-indicator {
    position: fixed;
    bottom: 70px;
    right: 20px;
    background-color: #28a745;
    color: white;
    padding: 8px 16px;
    border-radius: 4px;
    z-index: 1000;
    animation: fadeIn 0.3s, fadeOut 0.3s 1.7s;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeOut {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(-10px); }
}

.save-status {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background-color: rgba(0, 128, 0, 0.7);
    color: white;
    padding: 5px 10px;
    border-radius: 3px;
    font-size: 12px;
    transition: opacity 0.3s;
}

/* 视图模式下的宽度调整 */
.view-mode .note-content {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 20px;
}

.view-mode .markdown-preview {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

/* 确保容器也是全宽的 */
.view-mode .container {
    width: 100%;
    max-width: 100%;
    padding: 0 20px;
}

/* 在视图模式下移除可能的固定宽度限制 */
@media (min-width: 768px) {
    .view-mode .container {
        width: 100%;
        max-width: 100%;
    }
}

/* 确保视图模式下的内容区域有足够的空间 */
.view-mode .content-area {
    width: 100%;
    max-width: 100%;
    margin: 0;
    padding: 15px;
}

/* 调整视图模式下的卡片样式 */
.view-mode .card {
    width: 100%;
    max-width: 100%;
    margin-bottom: 20px;
}

.view-mode .card-body {
    width: 100%;
    padding: 20px;
}

/* 视图模式下的 markdown-body 特别处理 */
.view-mode .markdown-body {
    width: 100%;
    max-width: 100%;
    padding: 0 20px;
    margin: 0 auto;
}

/* 在大屏幕上限制最大宽度，提高可读性 */
@media (min-width: 1200px) {
    .view-mode .markdown-body {
        max-width: 90%;
        margin: 0 auto;
    }
}

/* 确保 markdown-body 内的表格和其他元素也是响应式的 */
.markdown-body table {
    width: 100%;
    display: block;
    overflow-x: auto;
}

.markdown-body img {
    max-width: 100%;
    height: auto;
}

.markdown-body pre {
    width: 100%;
    overflow-x: auto;
}

/* 确保视图模式下的代码块也能正确显示 */
.view-mode .markdown-body pre code {
    white-space: pre;
    word-wrap: normal;
    overflow-x: auto;
    display: block;
    width: 100%;
}

/* 如果使用了 GitHub Markdown 样式，可能需要覆盖其默认宽度 */
.markdown-body.entry-content {
    width: 100%;
    max-width: 100%;
    padding: 0 15px;
}

/* 活动按钮样式 */
.btn.active {
    background-color: #0d6efd;
    color: white;
}

/* 预览按钮活动状态 */
#preview-btn.active {
    background-color: #6c757d;
    color: white;
}

/* 编辑按钮活动状态 */
#edit-btn.active {
    background-color: #6c757d;
    color: white;
}

/* 自定义帮助模态框样式 */
.custom-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    overflow-y: auto;
}

.custom-modal-content {
    background-color: #fff;
    margin: 50px auto;
    padding: 0;
    border-radius: 5px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    width: 80%;
    max-width: 800px;
    animation: modalFadeIn 0.3s;
}

@keyframes modalFadeIn {
    from {opacity: 0; transform: translateY(-50px);}
    to {opacity: 1; transform: translateY(0);}
}

.custom-modal-header {
    padding: 15px 20px;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.custom-modal-header h5 {
    margin: 0;
    font-size: 1.25rem;
}

.custom-modal-close {
    font-size: 28px;
    font-weight: bold;
    color: #aaa;
    cursor: pointer;
}

.custom-modal-close:hover {
    color: #000;
}

.custom-modal-body {
    padding: 25px 30px;
    max-height: 70vh;
    overflow-y: auto;
    line-height: 1.6;
}

.custom-modal-footer {
    padding: 15px 20px;
    border-top: 1px solid #e9ecef;
    text-align: right;
}

/* 美化帮助模态框内容 */
.custom-modal-body {
    padding: 25px 30px;
    max-height: 70vh;
    overflow-y: auto;
    line-height: 1.6;
}

/* 帮助模态框中的标题 */
.custom-modal-body h5 {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.2rem;
    color: #333;
    font-weight: 600;
    padding-bottom: 8px;
    border-bottom: 1px solid #eaeaea;
}

/* 帮助模态框中的段落 */
.custom-modal-body p {
    margin-bottom: 15px;
}

/* 帮助模态框中的列表 */
.custom-modal-body ul {
    padding-left: 20px;
    margin-bottom: 25px;
}

.custom-modal-body li {
    margin-bottom: 8px;
}

/* 帮助模态框中的分隔符 */
.help-section {
    margin-bottom: 30px;
    padding-bottom: 5px;
}

.help-section:not(:last-child) {
    border-bottom: 1px dashed #e0e0e0;
    padding-bottom: 20px;
}

/* 帮助模态框中的强调文本 */
.custom-modal-body strong {
    color: #0056b3;
}

/* 帮助模态框中的代码示例 */
.custom-modal-body code {
    background-color: #f8f9fa;
    padding: 2px 4px;
    border-radius: 3px;
    font-family: monospace;
    color: #e83e8c;
}

/* 帮助模态框中的表格示例 */
.custom-modal-body .code-block {
    background-color: #f8f9fa;
    padding: 8px;
    border-radius: 4px;
    font-family: monospace;
    white-space: pre;
    overflow-x: auto;
    color: #333;
    border: 1px solid #eaeaea;
    margin: 10px 0;
}

/* 安全提示部分特殊样式 */
.security-tips {
    background-color: #fff8f8;
    border-left: 4px solid #dc3545;
    padding: 15px;
    border-radius: 0 4px 4px 0;
}

.security-tips h5 {
    color: #dc3545;
    border-bottom-color: #ffcccc;
}

.editor-container {
    display: flex;
    gap: 0;
    height: calc(100vh - 90px);
    padding: 10px;
    max-width: 100%;
    box-sizing: border-box;
}

.editor-container .editor {
    flex: 0 0 50%;
    min-width: 20%;
    max-width: 80%;
    display: flex;
    flex-direction: column;
    position: relative;
}

.editor-container .preview {
    flex: 1;
    overflow-y: auto;
}

/* 拖拽条样式 */
.resizer {
    width: 6px;
    background: #e1e4e8;
    cursor: col-resize;
    flex-shrink: 0;
    transition: background 0.2s;
    border-radius: 3px;
    margin: 0 2px;
}

.resizer:hover,
.resizer.active {
    background: #3498db;
}

/* 移动端隐藏拖拽条 */
@media (max-width: 768px) {
    .resizer {
        display: none;
    }
    .editor-container .editor {
        flex: none;
        min-width: auto;
        max-width: none;
    }
}

.editor textarea {
    width: 100%;
    resize: none;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: monospace;
    font-size: 14px;
    line-height: 1.6;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.editor textarea:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.preview {
    background-color: #c5e8ee !important; 
    width: calc(100vw - 60px);
    flex: 1;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    background-color: #fff;
    overflow-y: auto;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.preview img {
    max-width: 100%;
    height: auto;
}

.preview code {
    background-color: #f8f9fa;
    padding: 2px 4px;
    border-radius: 4px;
}

.preview pre {
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 6px;
    overflow-x: auto;
}

/* 响应式设计 - 移动端样式见文件末尾整合版 */

.preview-mode {
    background-color: #f8f9fa !important;
    cursor: default !important;
    border-color: #dee2e6 !important;
}

textarea[readonly] {
    background-color: #f8f9fa !important;
    cursor: default !important;
    color: #495057;
    border-color: #dee2e6;
}

/* 只读模式下隐藏或禁用按钮 */
.toggle-button[disabled] {
    background-color: #6c757d;
    cursor: not-allowed;
    opacity: 0.65;
}

/* 预览模式下的水印样式 */
textarea.preview-mode {
    background-color: #f8f9fa !important;
    cursor: default !important;
}

/* 水印样式 */
.editor::after {
    content: "预览中";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-45deg); /* 添加旋转效果 */
    font-size: 48px;
    color: rgba(255, 0, 0, 0.1);
    pointer-events: none; /* 确保水印不会影响文本选择 */
    z-index: 1;
    display: none; /* 默认隐藏 */
    background: linear-gradient(45deg, rgba(0, 0, 0, 0) 25%, transparent 25%);
    background-size: 100px 100px;
}

.editor.preview-active::after {
    display: block;
}

/* 响应式布局调整 - 移动端样式见文件末尾整合版 */

/* 按钮悬停效果 */
.btn.small:hover {
    background-color: #f8f9fa;
}

/* 按钮激活状态 */
.btn.small:active {
    background-color: #e9ecef;
}

/* 确保表格在移动设备上正常显示 - 移动端样式见文件末尾整合版 */

/* 预览模式下的编辑器布局 */
.editor-container.preview-mode .editor {
    display: none; /* 预览模式下隐藏编辑器 */
}

.editor-container.preview-mode .preview {
    width: 100vw; /* 预览模式下预览框宽度100% */
    max-width: 100%;
}

.editor-container.preview-mode .resizer {
    display: none; /* 预览模式下隐藏分隔条 */
}

/* ==================== 移动端优化（整合版）==================== */
@media (max-width: 768px) {
    /* 编辑器容器 */
    .editor-container {
        display: flex;
        flex-direction: column;
        height: calc(100vh - 120px);
        padding: 8px;
        gap: 0;
    }

    /* 移动端编辑模式：编辑区占满全屏，隐藏预览 */
    .editor-container .editor {
        flex: none;
        width: 100%;
        min-width: auto;
        max-width: none;
        height: calc(100vh - 130px);
    }

    .editor-container .preview {
        display: none; /* 默认隐藏预览区 */
    }

    /* 预览模式时显示预览区，隐藏编辑区 */
    .editor-container.preview-mode .editor {
        display: none;
    }

    .editor-container.preview-mode .preview {
        display: block;
        position: fixed;
        top: 8px;
        left: 8px;
        right: 8px;
        width: calc(100vw - 16px) !important;
        height: calc(100vh - 130px);
        padding: 12px;
        z-index: 50;
    }

    .editor.hidden {
        display: none !important;
    }

    .preview.hidden {
        display: none !important;
    }

    .resizer {
        display: none;
    }

    /* 编辑区 */
    .editor textarea {
        font-size: 16px; /* 防止 iOS 自动缩放 */
        padding: 12px;
        border-radius: 6px;
        height: 100%;
        width: 100%;
    }

    /* 底部工具栏 */
    .note-footer.floating {
        padding: 8px;
        left: 8px;
        right: 8px;
        bottom: 8px;
        width: calc(100% - 16px);
        border-radius: 12px;
    }

    .note-info {
        font-size: 11px;
        margin-bottom: 8px;
        gap: 6px;
        flex-wrap: wrap;
    }

    .note-info .key-badge {
        font-size: 11px;
        padding: 2px 6px;
    }

    .note-info .status-badge {
        font-size: 10px;
        padding: 1px 6px;
        margin-left: 6px;
        margin-right: 6px;
    }

    /* 操作按钮网格布局 */
    .action-buttons {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 6px;
    }

    .btn.small {
        padding: 10px 8px;
        font-size: 12px;
        border-radius: 8px;
        justify-content: center;
        min-height: 40px;
        flex: none;
    }

    .btn.small i {
        font-size: 16px;
    }

    .note-content {
        padding-bottom: 100px;
    }

    /* 模态框 */
    .modal-content {
        width: 95%;
        max-width: none;
        margin: 10px;
        max-height: 85vh;
    }

    .modal-header {
        padding: 12px 15px;
    }

    .modal-header h3 {
        font-size: 16px;
    }

    .modal-body {
        padding: 15px;
    }

    .modal-footer {
        padding: 12px 15px;
        flex-direction: column;
        gap: 8px;
    }

    .modal-footer .btn {
        width: 100%;
        padding: 12px;
    }

    /* 设置面板 */
    .settings-panel {
        width: 95%;
        max-height: 85vh;
        padding: 15px;
    }

    .settings-section {
        padding: 12px;
        margin-bottom: 12px;
    }

    .form-actions {
        flex-direction: column;
        gap: 8px;
    }

    .form-actions .btn {
        width: 100%;
        margin-left: 0;
        padding: 12px;
    }

    /* 帮助模态框 */
    .custom-modal-content {
        width: 95%;
        margin: 20px auto;
    }

    .custom-modal-body {
        padding: 15px;
        max-height: 60vh;
    }

    /* 分享链接 */
    .share-link-container {
        flex-direction: column;
    }

    .share-link-container input {
        border-radius: 4px;
        margin-bottom: 8px;
    }

    .share-link-container button {
        border-radius: 4px;
        width: 100%;
    }

    /* 保存提示 */
    .save-indicator {
        bottom: 120px;
        left: 50%;
        transform: translateX(-50%);
        right: auto;
    }

    /* 密码页面 */
    .password-form {
        width: 95%;
        padding: 20px;
    }

    .password-form input {
        font-size: 16px;
        padding: 14px;
    }

    .password-form .btn {
        padding: 14px;
        font-size: 16px;
    }

    /* 表格滚动 */
    .markdown-body table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* 小屏幕 (< 480px) */
@media (max-width: 480px) {
    .action-buttons {
        grid-template-columns: repeat(3, 1fr);
    }

    .btn.small {
        padding: 10px 6px;
        font-size: 11px;
    }

    .note-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }
}

/* 超小屏幕 (< 360px) */
@media (max-width: 360px) {
    .action-buttons {
        grid-template-columns: repeat(2, 1fr);
    }

    .btn.small {
        min-height: 44px;
    }
}

/* 横屏模式 */
@media (max-width: 768px) and (orientation: landscape) {
    .editor-container {
        height: calc(100vh - 80px);
    }

    .editor-container .editor,
    .editor-container .preview {
        height: calc(100vh - 90px);
    }

    .note-footer.floating {
        padding: 6px 8px;
    }

    .note-info {
        margin-bottom: 4px;
    }

    .action-buttons {
        grid-template-columns: repeat(6, 1fr);
    }

    .btn.small {
        min-height: 36px;
        padding: 6px;
    }

    .note-content {
        padding-bottom: 70px;
    }
}

/* iOS 安全区域 */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    .note-footer.floating {
        padding-bottom: calc(8px + env(safe-area-inset-bottom));
    }

    @media (max-width: 768px) {
        .note-content {
            padding-bottom: calc(100px + env(safe-area-inset-bottom));
        }
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .btn.small {
        min-height: 44px;
    }

    .btn:active {
        transform: scale(0.95);
        transition: transform 0.1s;
    }

    .copy-code-btn {
        padding: 8px 12px !important;
        font-size: 14px !important;
    }
}
/* 快捷指令工具栏样式 */
.editor-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 8px;
    background: #f8f9fa;
    border: 1px solid #ddd;
    border-bottom: none;
    border-radius: 8px 8px 0 0;
    margin-bottom: -1px;
}

.editor-toolbar .toolbar-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: #fff;
    color: #495057;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

.editor-toolbar .toolbar-btn:hover {
    background: #e9ecef;
    border-color: #adb5bd;
}

.editor-toolbar .toolbar-btn:active {
    background: #dee2e6;
}

.editor-toolbar .toolbar-btn.wide {
    width: auto;
    padding: 0 10px;
    font-size: 12px;
}

.editor-toolbar .toolbar-divider {
    width: 1px;
    height: 24px;
    background: #ddd;
    margin: 4px 6px;
}

/* 移动端工具栏调整 */
@media (max-width: 768px) {
    .editor-toolbar {
        padding: 6px;
        gap: 3px;
    }

    .editor-toolbar .toolbar-btn {
        width: 28px;
        height: 28px;
        font-size: 12px;
    }

    .editor-toolbar .toolbar-btn.wide {
        padding: 0 8px;
        font-size: 11px;
    }

    .editor-toolbar .toolbar-divider {
        margin: 2px 4px;
        height: 20px;
    }
}

/* 编辑器有工具栏时的样式调整 */
.editor.has-toolbar textarea {
    border-radius: 0 0 8px 8px;
}

/* 预览模式下隐藏工具栏 */
.editor.preview-active .editor-toolbar {
    display: none;
}

.editor.preview-active textarea {
    border-radius: 8px;
}
/* ==================== 目录样式 ==================== */

/* 内联目录容器 */
.toc-container {
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 15px 20px;
    margin: 20px 0;
    max-width: 100%;
}

.toc-title {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid #007bff;
}

.toc ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}

.toc ul ul {
    padding-left: 20px;
    margin-top: 4px;
}

.toc li {
    margin: 4px 0;
}

.toc-link {
    color: #495057;
    text-decoration: none;
    display: block;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s;
    font-size: 14px;
}

.toc-link:hover {
    background: #e9ecef;
    color: #007bff;
    padding-left: 12px;
}

.toc-link.active {
    background: #007bff;
    color: white;
    font-weight: 500;
}

/* 不同层级的目录样式 */
.toc-level-1 {
    font-weight: 600;
    font-size: 15px;
}

.toc-level-2 {
    font-size: 14px;
}

.toc-level-3 {
    font-size: 13px;
    color: #6c757d;
}

.toc-level-4,
.toc-level-5,
.toc-level-6 {
    font-size: 12px;
    color: #6c757d;
}

/* 漂浮目录面板（仅PC端） */
.floating-toc {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 300px;
    max-height: calc(100vh - 60px);
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    z-index: 900;
    display: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.floating-toc.show {
    display: block;
    animation: slideInRight 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 收起状态 - 只显示一个圆形按钮 */
.floating-toc.collapsed {
    width: 56px;
    height: 56px;
    border-radius: 28px;
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
    overflow: visible;
}

/* 收起状态下隐藏内容 */
.floating-toc.collapsed .floating-toc-content,
.floating-toc.collapsed .floating-toc-title,
.floating-toc.collapsed .toc-close-btn {
    display: none;
}

/* 收起状态下的按钮样式 */
.floating-toc.collapsed .floating-toc-header {
    width: 56px;
    height: 56px;
    border-radius: 28px;
    padding: 0;
    justify-content: center;
    align-items: center;
    position: relative;
}

.floating-toc.collapsed .floating-toc-toggle {
    transform: rotate(0deg);
    font-size: 24px;
}

/* 标题栏 */
.floating-toc-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    cursor: pointer;
    user-select: none;
    position: relative;
}

.floating-toc-title {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* 展开/收起切换按钮 */
.floating-toc-toggle {
    font-size: 20px;
    transition: transform 0.3s;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 关闭按钮（展开状态右上角） */
.toc-close-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    z-index: 10;
}

.toc-close-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.toc-close-btn:active {
    transform: scale(0.95);
}

/* 内容区域 */
.floating-toc-content {
    padding: 20px;
    overflow-y: auto;
    max-height: calc(100vh - 140px);
}

.floating-toc-content::-webkit-scrollbar {
    width: 6px;
}

.floating-toc-content::-webkit-scrollbar-track {
    background: transparent;
}

.floating-toc-content::-webkit-scrollbar-thumb {
    background: #cbd5e0;
    border-radius: 3px;
}

.floating-toc-content::-webkit-scrollbar-thumb:hover {
    background: #a0aec0;
}

/* 漂浮目录内的链接样式 */
.floating-toc .toc-link {
    font-size: 13px;
    padding: 8px 12px;
    border-radius: 6px;
}

.floating-toc .toc-link:hover {
    background: #f7fafc;
    padding-left: 16px;
}

.floating-toc .toc-link.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    font-weight: 500;
}

/* 滑入动画 */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* 移动端隐藏漂浮目录 */
@media screen and (max-width: 768px) {
    .floating-toc {
        display: none !important;
    }
}

/* PC 端且文档有标题时才显示漂浮目录 */
@media screen and (min-width: 769px) {
    body.has-headings .floating-toc {
        display: block;
    }
}

/* ===== Modern UX Overrides (Buttons + Modals) ===== */
:root {
    --ui-surface: #ffffff;
    --ui-surface-soft: #f8fafc;
    --ui-surface-muted: #f1f5f9;
    --ui-border: #d9e1ec;
    --ui-text: #1e293b;
    --ui-text-soft: #64748b;
    --ui-primary: #2563eb;
    --ui-primary-hover: #1d4ed8;
    --ui-danger: #dc2626;
    --ui-danger-hover: #b91c1c;
    --ui-shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.08);
    --ui-shadow-md: 0 12px 36px rgba(15, 23, 42, 0.16);
    --ui-radius-sm: 10px;
    --ui-radius-md: 14px;
    --ui-radius-lg: 18px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 40px;
    padding: 10px 16px;
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-md);
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    color: var(--ui-text);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    box-shadow: var(--ui-shadow-sm);
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background 0.18s ease, color 0.18s ease;
}

.btn:hover {
    transform: translateY(-1px);
    border-color: #c7d3e4;
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.12);
    background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0 1px 6px rgba(15, 23, 42, 0.12);
}

.btn:focus-visible {
    outline: 2px solid rgba(37, 99, 235, 0.28);
    outline-offset: 1px;
}

.btn[disabled] {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none;
}

.btn.small {
    min-height: 36px;
    padding: 8px 12px;
    font-size: 13px;
    border-radius: 12px;
}

.btn.primary {
    color: #ffffff;
    border-color: #1e4fd4;
    background: linear-gradient(135deg, var(--ui-primary) 0%, #1d4ed8 100%);
}

.btn.primary:hover {
    background: linear-gradient(135deg, var(--ui-primary-hover) 0%, #1e40af 100%);
}

.btn.secondary,
.btn.btn-secondary,
.btn-secondary {
    color: #334155;
    border-color: #cbd5e1;
    background: linear-gradient(180deg, #f8fafc 0%, #edf2f7 100%);
}

.btn.secondary:hover,
.btn.btn-secondary:hover,
.btn-secondary:hover {
    background: linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 100%);
}

.btn.danger {
    color: #ffffff;
    border-color: #b91c1c;
    background: linear-gradient(135deg, var(--ui-danger) 0%, #b91c1c 100%);
}

.btn.danger:hover {
    background: linear-gradient(135deg, var(--ui-danger-hover) 0%, #991b1b 100%);
}

.btn.info {
    color: #ffffff;
    border-color: #0f766e;
    background: linear-gradient(135deg, #0ea5a3 0%, #0f766e 100%);
}

.btn.info:hover {
    background: linear-gradient(135deg, #0d9488 0%, #115e59 100%);
}

.btn.full-width {
    width: 100%;
    margin-bottom: 0;
}

.action-buttons {
    gap: 8px;
}

body.popup-active {
    overflow: hidden;
}

body.popup-active .container {
    pointer-events: none;
}

body.popup-active #settings-panel:not(.hidden),
body.popup-active .modal:not(.hidden),
body.popup-active .custom-modal[style*="display: block"] {
    pointer-events: auto;
}

.modal,
.custom-modal {
    position: fixed;
    inset: 0;
    padding: 24px;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 1200;
    align-items: center;
    justify-content: center;
}

.modal {
    display: flex;
}

.custom-modal {
    display: none;
}

.custom-modal[style*="display: block"] {
    display: flex !important;
}

.modal.hidden {
    display: none !important;
}

.modal-content,
.custom-modal-content,
.settings-panel {
    position: relative;
    width: min(640px, 100%);
    max-height: min(88vh, 860px);
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.28);
    border-radius: var(--ui-radius-lg);
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    box-shadow: var(--ui-shadow-md);
    animation: modal-dialog-in 0.2s ease-out;
}

.custom-modal-content {
    width: min(920px, 100%);
}

.modal-header,
.custom-modal-header,
.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.22);
    background: rgba(255, 255, 255, 0.92);
}

.modal-header h3,
.custom-modal-header h5,
.settings-header h3 {
    margin: 0;
    color: #0f172a;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.custom-modal-header h5 {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.modal-body,
.custom-modal-body {
    padding: 18px 20px;
    overflow: auto;
    color: #334155;
    line-height: 1.65;
}

.modal-footer,
.custom-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 14px 20px;
    border-top: 1px solid rgba(148, 163, 184, 0.22);
    background: var(--ui-surface-soft);
}

.custom-modal-footer {
    text-align: right;
}

.modal-close-btn,
.close-modal,
.custom-modal-close,
.close-settings {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    margin: 0;
    border: 1px solid var(--ui-border);
    border-radius: 999px;
    background: var(--ui-surface);
    color: var(--ui-text-soft);
    font-size: 22px;
    line-height: 1;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.16s ease, background 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

.modal-close-btn:hover,
.close-modal:hover,
.custom-modal-close:hover,
.close-settings:hover {
    transform: translateY(-1px);
    background: var(--ui-surface-muted);
    color: var(--ui-text);
    border-color: #c5d0df;
}

.modal-close-btn:focus-visible,
.close-modal:focus-visible,
.custom-modal-close:focus-visible,
.close-settings:focus-visible {
    outline: 2px solid rgba(37, 99, 235, 0.3);
    outline-offset: 2px;
}

.settings-panel {
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: min(780px, calc(100% - 32px));
    padding: 0;
    z-index: 1250;
    overflow: auto;
}

.settings-panel .settings-section {
    margin: 16px;
    padding: 16px;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    background: #f8fafc;
}

.settings-panel .settings-section-danger {
    border-color: #fecaca;
    background: #fff7f7;
}

.settings-panel .form-actions {
    justify-content: flex-end;
    gap: 10px;
    margin-top: 12px;
}

.share-link-container {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    margin-bottom: 10px;
}

.share-link-container input {
    border-radius: 12px;
}

.share-link-container button {
    border-radius: 12px;
    margin-left: 0;
}

.download-format-options {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 8px;
}

.download-format-options .radio-option {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 0;
    padding: 8px 12px;
    border: 1px solid #d7dee9;
    border-radius: 999px;
    background: #ffffff;
    font-size: 13px;
    color: #334155;
}

.download-format-options .radio-option input {
    margin: 0;
}

.modal-body input[type="text"],
.modal-body input[type="password"],
.custom-modal-body input[type="text"],
.custom-modal-body input[type="password"],
.settings-panel input[type="text"],
.settings-panel input[type="password"],
.settings-panel textarea,
.settings-panel select {
    border: 1px solid #cfd8e3;
    border-radius: 12px;
    background: #ffffff;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.modal-body input[type="text"]:focus,
.modal-body input[type="password"]:focus,
.custom-modal-body input[type="text"]:focus,
.custom-modal-body input[type="password"]:focus,
.settings-panel input[type="text"]:focus,
.settings-panel input[type="password"]:focus,
.settings-panel textarea:focus,
.settings-panel select:focus {
    border-color: #93c5fd;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
    outline: none;
}

.error-message {
    color: #dc2626;
    font-weight: 600;
}

.password-container {
    background:
        radial-gradient(circle at 20% 15%, rgba(59, 130, 246, 0.16) 0%, rgba(59, 130, 246, 0) 45%),
        radial-gradient(circle at 80% 80%, rgba(14, 165, 233, 0.12) 0%, rgba(14, 165, 233, 0) 42%),
        #eef3fb;
}

.password-box {
    width: min(460px, calc(100% - 28px));
    padding: 28px;
    border: 1px solid rgba(148, 163, 184, 0.26);
    border-radius: 20px;
    background: #ffffff;
    box-shadow: var(--ui-shadow-md);
}

.password-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.password-header i {
    color: var(--ui-primary);
}

.password-description {
    color: #64748b;
    margin-bottom: 14px;
}

.password-footer {
    margin-top: 16px;
    text-align: center;
    color: #64748b;
}

.password-footer p {
    margin-bottom: 10px;
}

.back-link {
    margin-top: 16px;
    text-align: center;
}

.back-link a {
    color: #475569;
    text-decoration: none;
    font-weight: 600;
}

.back-link a:hover {
    color: #1e293b;
}

@keyframes modal-dialog-in {
    from {
        opacity: 0;
        transform: translateY(8px) scale(0.985);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 768px) {
    .modal,
    .custom-modal {
        padding: 12px;
    }

    .modal-content,
    .custom-modal-content,
    .settings-panel {
        width: 100%;
        max-height: calc(100vh - 24px);
        border-radius: 16px;
    }

    .modal-header,
    .custom-modal-header,
    .settings-header {
        padding: 14px 16px;
    }

    .modal-body,
    .custom-modal-body {
        padding: 14px 16px;
    }

    .modal-footer,
    .custom-modal-footer,
    .settings-panel .form-actions {
        flex-direction: column;
    }

    .modal-footer .btn,
    .custom-modal-footer .btn,
    .settings-panel .form-actions .btn {
        width: 100%;
    }

    .share-link-container {
        grid-template-columns: 1fr;
    }

    .action-buttons {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 8px;
    }

    .btn.small {
        min-height: 42px;
    }
}

/* ===== Floating TOC UX Redesign ===== */
.floating-toc {
    top: 72px;
    right: 20px;
    bottom: auto;
    width: 320px;
    max-height: calc(100vh - 96px);
    border: 1px solid rgba(148, 163, 184, 0.35);
    border-radius: 16px;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.22);
    overflow: hidden;
    z-index: 980;
}

.floating-toc.show {
    display: block;
}

.floating-toc-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #ffffff;
    cursor: default;
    user-select: none;
}

.floating-toc-title {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.floating-toc-actions {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.toc-icon-btn {
    width: 30px;
    height: 30px;
    border: 1px solid rgba(255, 255, 255, 0.45);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.16);
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.16s ease, background 0.16s ease, border-color 0.16s ease;
}

.toc-icon-btn:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.24);
    border-color: rgba(255, 255, 255, 0.68);
}

.floating-toc-content {
    padding: 10px 12px 14px;
    max-height: calc(100vh - 170px);
    overflow-y: auto;
}

.floating-toc .toc {
    font-size: 13px;
    line-height: 1.5;
}

.floating-toc .toc ul {
    margin: 0;
    padding-left: 14px;
    list-style: none;
}

.floating-toc .toc li {
    margin: 2px 0;
}

.floating-toc .toc-link {
    display: block;
    padding: 6px 8px;
    border-radius: 8px;
    color: #334155;
    text-decoration: none;
    transition: background 0.16s ease, color 0.16s ease, transform 0.16s ease;
}

.floating-toc .toc-link:hover {
    background: #eff6ff;
    color: #1d4ed8;
    transform: translateX(1px);
}

.floating-toc .toc-link.active {
    background: #dbeafe;
    color: #1e3a8a;
    font-weight: 700;
}

.floating-toc.collapsed {
    top: auto;
    right: 20px;
    bottom: 96px;
    width: 54px;
    height: 54px;
    border-radius: 999px;
    border: none;
    background: transparent;
    box-shadow: none;
}

.floating-toc.collapsed .floating-toc-title,
.floating-toc.collapsed .floating-toc-content,
.floating-toc.collapsed .toc-hide-btn {
    display: none;
}

.floating-toc.collapsed .floating-toc-header {
    width: 100%;
    height: 100%;
    padding: 0;
    border-bottom: none;
    justify-content: center;
    background: transparent;
}

.floating-toc.collapsed .floating-toc-actions {
    margin-left: 0;
}

.floating-toc.collapsed .toc-toggle-btn {
    width: 54px;
    height: 54px;
    border-radius: 999px;
    border: none;
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: #ffffff;
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.36);
}

.toc-launcher {
    position: fixed;
    right: 20px;
    bottom: 96px;
    z-index: 980;
    height: 44px;
    padding: 0 14px;
    border: 1px solid rgba(148, 163, 184, 0.42);
    border-radius: 999px;
    background: #ffffff;
    color: #1e293b;
    box-shadow: 0 10px 26px rgba(15, 23, 42, 0.2);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.toc-launcher:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.26);
}

@media screen and (max-width: 768px) {
    .toc-launcher {
        display: none !important;
    }
}