/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 按钮基础样式 - 移到文件最前面确保优先加载 */
.btn,
button[type="submit"],
.btn-add,
.add-new-btn,
.add-new-content {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    min-width: 4rem;
    border: none;
    cursor: pointer;
    color: white !important;
    background-color: #333333 !important;
    transition: all 0.2s ease;
    opacity: 1 !important;
}

/* 主要按钮样式 */
.btn-primary,
button[type="submit"],
.btn-save,
.add-new-content {
    background-color: #333333 !important;
    color: white !important;
    font-weight: 600;
    padding: 0.625rem 1.25rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    opacity: 1 !important;
}

/* 加载动画样式 */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-text {
    margin-top: 1rem;
    font-size: 1.2rem;
    color: #333;
}

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

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

/* 页面加载完成后的状态 */
body.loaded .loading {
    display: none;
}

/* 功能按钮样式 */
.btn-copy {
    background-color: #9333ea !important;
}

.btn-download {
    background-color: #0284c7 !important;
}

.btn-edit {
    background-color: #059669 !important;
}

.btn-delete {
    background-color: #dc2626 !important;
}

/* 次要按钮样式 */
.btn-secondary,
.btn-cancel {
    background-color: #6b7280 !important;
}

/* 按钮悬停效果 */
.btn:hover,
.btn-primary:hover,
button[type="submit"]:hover,
.btn-save:hover,
.add-new-content:hover {
    transform: translateY(-1px);
    filter: brightness(1.1);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.15);
}

/* 按钮激活状态 */
.btn:active {
    transform: translateY(0);
}

/* 按钮禁用状态 */
.btn:disabled {
    background-color: #bdc3c7 !important;
    cursor: not-allowed;
    transform: none;
}

/* 全局字体设置 */
:root {
    --font-sans: -apple-system, "Noto Sans", "Helvetica Neue", Helvetica, "Nimbus Sans L", Arial, "Liberation Sans", "PingFang SC", "Hiragino Sans GB", "Noto Sans CJK SC", "Source Han Sans SC", "Source Han Sans CN", "Microsoft YaHei", "Wenquanyi Micro Hei", "WenQuanYi Zen Hei", "ST Heiti", SimHei, "WenQuanYi Zen Hei Sharp", sans-serif;
    --font-serif: "Noto Serif", "Noto Serif CJK SC", "Source Han Serif SC", "Source Han Serif CN", "Songti SC", STSong, "AR PL New Sung", "AR PL SungtiL GB", NSimSun, SimSun, "TW\-Sung", "WenQuanYi Bitmap Song", "AR PL UMing CN", "AR PL UMing HK", "AR PL UMing TW", "AR PL UMing TW MBE", serif;
    --font-mono: "Fira Code", "Noto Sans Mono CJK SC", "Source Code Pro", Consolas, Monaco, "Andale Mono", "Ubuntu Mono", monospace;

    /* 浅色主题变量 */
    --bg-color: #f5f5f5;
    --text-color: #333;
    --grid-color: rgba(0, 0, 0, 0.84);
    --card-bg: #ffffff;
    --card-inner-bg: #f8f8f8;
    --card-shadow: rgba(0, 0, 0, 0.08);
    --heading-color: #2c3e50;
    --border-color: #e8e8e8;
    --input-bg: #ffffff;
    --input-border: #d0d0d0;
    --input-focus-border: #3498db;
    --input-text: #333;
    --input-placeholder: #999;
    --file-bg: var(--card-inner-bg);
    --file-border: var(--border-color);
    --file-text: #2c3e50;
    --file-subtext: #7f8c8d;
    --code-bg: var(--card-inner-bg);
    --modal-bg: #ffffff;
    --modal-overlay: rgba(0, 0, 0, 0.5);
    --skeleton-start: #f0f0f0;
    --skeleton-middle: #e0e0e0;
}

/* 深色主题变量 */
[data-theme="dark"] {
    --bg-color: #1a1a1a;
    --text-color: #e0e0e0;
    --grid-color: rgba(255, 255, 255, 0.1);
    --card-bg: #2d2d2d;
    --card-inner-bg: #1e1e1e;
    --card-border: #404040;
    --card-shadow: rgba(0, 0, 0, 0.3);
    --heading-color: #ffffff;
    --border-color: #404040;
    --file-bg: #2d2d2d;
    --file-border: #404040;
    --file-text: #e0e0e0;
    --file-subtext: #a0a0a0;
    --code-bg: #1e1e1e;
    --code-block-bg: #1e1e1e;
    --code-border: #2d2d2d;
    --code-text: #e0e0e0;
    --code-comment: #6a9955;
    --code-string: #ce9178;
    --code-number: #b5cea8;
    --code-keyword: #569cd6;
    --code-function: #dcdcaa;
    --code-property: #9cdcfe;
    --modal-bg: #2d2d2d;
    --modal-overlay: rgba(0, 0, 0, 0.7);
    --btn-bg: #3d3d3d;
    --btn-text: #ffffff;
    --btn-hover: #4a4a4a;
    --input-bg: #2d2d2d;
    --input-border: #404040;
    --input-text: #e0e0e0;
    --toast-bg: rgba(45, 45, 45, 0.9);
    --skeleton-start: #2d2d2d;
    --skeleton-middle: #3d3d3d;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    background-image:
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 29px 29px;
    background-position: 24px 24px;
    background-attachment: fixed;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

header {
    text-align: center;
    margin-bottom: 3rem;
}

h1 {
    font-size: 2.5rem;
    color: var(--heading-color);
    margin-bottom: 1rem;
}

.text-block {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 1px 2px var(--card-shadow),
        0 2px 4px var(--card-shadow),
        0 4px 8px var(--card-shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.text-block:hover {
    box-shadow: 0 6px 12px var(--card-shadow);
}

.text-block.fade-out {
    opacity: 0;
}

.text-block.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

h2 {
    color: var(--heading-color);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

/* 诗歌样式 */
.poetry {
    font-family: var(--font-serif);
    text-align: center;
    font-size: 1.2rem;
    line-height: 2;
}

/* 代码样式 */
pre {
    margin: 0;
    padding: 1rem;
    border-radius: 4px;
    overflow-x: auto;
}

code {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* 普通文本样式 */
.prose {
    font-size: 1rem;
    line-height: 1.8;
    text-align: justify;
}

/* 响应式设计 */
@media (max-width: 600px) {
    .container {
        padding: 1rem;
    }

    h1 {
        font-size: 2rem;
    }

    .text-block {
        padding: 1.5rem;
    }

    .poetry {
        font-size: 1.1rem;
    }
}

/* 提示框样式 */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translate(-50%, 100%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    z-index: 2000;
    opacity: 0;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 8px;
}

.toast.success {
    background-color: rgba(46, 204, 113, 0.9);
}

.toast.error {
    background-color: rgba(231, 76, 60, 0.9);
}

.toast.show {
    transform: translate(-50%, 0);
    opacity: 1;
}

.toast.fade-out {
    opacity: 0;
    transform: translate(-50%, 20px);
}

.toast::before {
    content: '';
    width: 16px;
    height: 16px;
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
}

.toast.success::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41L9 16.17z'/%3E%3C/svg%3E");
}

.toast.error::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41z'/%3E%3C/svg%3E");
}

/* 内容块样式 */
.text-block {
    background: white;
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.3s ease;
}

.text-block:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.text-block-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #eee;
}

/* 图片样式 */
.image {
    text-align: center;
}

.image img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-overlay);
    z-index: 1000;
    overflow-y: auto;
    padding: 20px;
}

.modal-content {
    background-color: var(--modal-bg);
    margin: 20px auto;
    padding: 2rem;
    width: 90%;
    max-width: 600px;
    border-radius: 8px;
    position: relative;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
    color: var(--text-color);
}

/* 表单样式 */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--file-border);
    border-radius: 4px;
    font-size: 1rem;
    font-family: var(--font-sans);
    background-color: var(--file-bg);
    color: var(--text-color);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

/* 响应式调整 */
@media (max-width: 600px) {
    .modal {
        padding: 10px;
    }

    .modal-content {
        margin: 10px auto;
        padding: 1rem;
        width: 95%;
    }

    .form-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }

    .btn {
        width: 100%;
    }

    .image-preview img {
        max-height: 200px;
    }
}

/* 状态显示样式 */
.loading,
.error,
.empty {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 8px;
    margin: 1rem 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.loading {
    color: #3498db;
}

.error {
    color: #e74c3c;
}

.empty {
    color: #95a5a6;
}

/* 按钮禁用状态 */
.btn:disabled {
    background-color: #bdc3c7;
    cursor: not-allowed;
}

/* 加载动画 */
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

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

/* 优化过渡效果 */
.text-block {
    transition: opacity 0.3s ease-in-out;
    opacity: 1;
}

.text-block.fade-out {
    opacity: 0;
}

.text-block.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* 图片相关样式 */
.image {
    text-align: center;
}

.image img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.image-preview {
    margin-top: 1rem;
    text-align: center;
    background-color: #f8f9fa;
    padding: 1rem;
    border-radius: 4px;
}

.image-preview img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

#editImage {
    padding: 1rem;
    background-color: #f8f9fa;
    border: 2px dashed #bdc3c7;
    cursor: pointer;
    transition: border-color 0.3s;
}

#editImage:hover {
    border-color: #3498db;
}

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 10px;
    vertical-align: middle;
}

/* 提示框样式 */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translate(-50%, 100%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    z-index: 2000;
    opacity: 0;
    transition: all 0.3s ease-in-out;
}

.toast.show {
    transform: translate(-50%, 0);
    opacity: 1;
}

.toast.fade-out {
    opacity: 0;
    transform: translate(-50%, 20px);
}

/* 内容样式 */
.prose p {
    margin: 0.5em 0;
    line-height: 1.6;
}

.poetry p {
    margin: 0.5em 0;
    line-height: 1.8;
    text-align: center;
}

.code {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 4px;
}

.code pre {
    margin: 0;
}

.code code {
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

/* 图片样式 */
.image {
    text-align: center;
    padding: 1rem 0;
}

.image img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 图片相关样式 */
.image {
    text-align: center;
}

.image img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.image-preview {
    margin-top: 1rem;
    text-align: center;
    background-color: #f8f9fa;
    padding: 1rem;
    border-radius: 4px;
}

.image-preview img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

#editImage {
    padding: 1rem;
    background-color: #f8f9fa;
    border: 2px dashed #bdc3c7;
    cursor: pointer;
    transition: border-color 0.3s;
}

#editImage:hover {
    border-color: #3498db;
}

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid #3498db;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 10px;
    vertical-align: middle;
}

/* 提示框样式 */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translate(-50%, 100%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    z-index: 2000;
    opacity: 0;
    transition: all 0.3s ease-in-out;
}

.toast.show {
    transform: translate(-50%, 0);
    opacity: 1;
}

.toast.fade-out {
    opacity: 0;
    transform: translate(-50%, 20px);
}

/* 确认对话框样式 */
.confirm-dialog {
    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: 2000;
}

.confirm-dialog-content {
    background: white;
    padding: 24px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    max-width: 400px;
    width: 90%;
}

.confirm-dialog-title {
    font-size: 18px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 16px;
}

.confirm-dialog-message {
    font-size: 14px;
    color: #34495e;
    margin-bottom: 24px;
    line-height: 1.5;
}

.confirm-dialog-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* 文件相关样式 */
.file {
    background: var(--file-bg);
    display: flex;
    align-items: center;
    padding: 1.25rem;
    border-radius: 12px;
    border: 1px solid var(--file-border);
    margin: 1rem 0;
    transition: all 0.2s ease;
}

.file:hover {
    box-shadow: 0 4px 8px var(--card-shadow);
}

.file-icon {
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

.file-details {
    margin-left: 1rem;
}

.file-name {
    color: var(--file-text);
    font-weight: 500;
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.file-type {
    color: var(--file-subtext);
    font-size: 0.875rem;
}

/* 图片文件图标 */
.file-icon.image {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%2327ae60' d='M19 3H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2zm0 16H5V5h14v14zm-5-7l-3 3.72L9 13l-3 4h12l-4-5z'/%3E%3C/svg%3E");
}

/* Markdown文件图标 */
.file-icon.markdown {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%234CAF50' d='M14.85 3H5.15A2.15 2.15 0 0 0 3 5.15v13.7A2.15 2.15 0 0 0 5.15 21h13.7A2.15 2.15 0 0 0 21 18.85V9.15L14.85 3Z'/%3E%3Cpath fill='white' d='M14.5 3v6.5H21'/%3E%3Cpath fill='white' d='M7 14.5v-5h2l2 2.5 2-2.5h2v5h-2v-3l-2 2.5-2-2.5v3H7z'/%3E%3C/svg%3E");
}

/* PDF文件图标 */
.file-icon.pdf {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23F44336' d='M20 2H8c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V4c0-1.1-.9-2-2-2zm-8.5 7.5c0 .83-.67 1.5-1.5 1.5H9v2H7.5V7H10c.83 0 1.5.67 1.5 1.5v1zm5 2c0 .83-.67 1.5-1.5 1.5h-2.5V7H15c.83 0 1.5.67 1.5 1.5v3zm4-3H19v1h1.5V11H19v2h-1.5V7h3v1.5zM9 9.5h1v-1H9v1zM4 6H2v14c0 1.1.9 2 2 2h14v-2H4V6zm10 5.5h1v-3h-1v3z'/%3E%3C/svg%3E");
}

/* Word文件图标 */
.file-icon.word {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%232196F3' d='M19 3H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2zm-3.5 14H14l-2-7.5-2 7.5H8.5L6.1 7h1.7l1.54 7.5L11.3 7h1.4l1.97 7.5L16.2 7h1.7l-2.4 10z'/%3E%3C/svg%3E");
}

/* Excel文件图标 */
.file-icon.excel {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%234CAF50' d='M14 2H6c-1.1 0-2 .9-2 2v16c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V8l-6-6zM6 20V4h7v5h5v11H6z'/%3E%3C/svg%3E");
}

/* PowerPoint文件图标 */
.file-icon.powerpoint {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Crect fill='%23d24726' x='2' y='2' width='20' height='20' rx='4'/%3E%3Cpath fill='white' d='M8 17V7h5c1.1 0 2 .9 2 2v2.5c0 1.1-.9 2-2 2H9.5v3.5H8zm1.5-5h3c.3 0 .5-.2.5-.5v-2c0-.3-.2-.5-.5-.5h-3v3z'/%3E%3C/svg%3E");
}

/* 代码文件图标 */
.file-icon.code {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%233498db' d='M9.4 16.6L4.8 12l4.6-4.6L8 6l-6 6 6 6 1.4-1.4zm5.2 0l4.6-4.6-4.6-4.6L16 6l6 6-6 6-1.4-1.4z'/%3E%3C/svg%3E");
}

/* 压缩文件图标 */
.file-icon.archive {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23ffa000' d='M20 6h-4V4c0-1.11-.89-2-2-2h-4c-1.11 0-2 .89-2 2v2H4c-1.11 0-1.99.89-1.99 2L2 19c0 1.11.89 2 2 2h16c1.11 0 2-.89 2-2V8c0-1.11-.89-2-2-2zm-6 0h-4V4h4v2z'/%3E%3C/svg%3E");
}

/* 视频文件图标 */
.file-icon.video {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23e74c3c' d='M17 10.5V7c0-.55-.45-1-1-1H4c-.55 0-1 .45-1 1v10c0 .55.45 1 1 1h12c.55 0 1-.45 1-1v-3.5l4 4v-11l-4 4z'/%3E%3C/svg%3E");
}

/* 音频文件图标 */
.file-icon.audio {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%239b59b6' d='M12 3v9.28c-.47-.17-.97-.28-1.5-.28C8.01 12 6 14.01 6 16.5S8.01 21 10.5 21c2.31 0 4.2-1.75 4.45-4H15V6h4V3h-7z'/%3E%3C/svg%3E");
}

/* 文本文件图标 */
.file-icon.text {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%2395a5a6' d='M14 2H6c-1.1 0-2 .9-2 2v16c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V8l-6-6zm2 14H8v-2h8v2zm0-4H8v-2h8v2zm-3-5V3.5L18.5 9H13z'/%3E%3C/svg%3E");
}

/* 通用文件图标 */
.file-icon.generic {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%2395a5a6' d='M6 2c-1.1 0-1.99.9-1.99 2L4 20c0 1.1.89 2 1.99 2H18c1.1 0 2-.9 2-2V8l-6-6H6zm7 7V3.5L18.5 9H13z'/%3E%3C/svg%3E");
}

/* 主题切换按钮 */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 48px;
    height: 24px;
    border-radius: 12px;
    background-color: #e0e0e0;
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 2px;
    transition: all 0.3s ease;
    border: none;
    z-index: 1000;
}

.theme-toggle::before {
    content: '';
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

[data-theme="dark"] .theme-toggle {
    background-color: #3498db;
}

[data-theme="dark"] .theme-toggle::before {
    transform: translateX(24px);
}

.theme-toggle:hover {
    opacity: 0.9;
}

/* 按钮样式适配深色模式 */
[data-theme="dark"] .btn {
    background-color: var(--btn-bg);
    color: var(--btn-text);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .btn:hover {
    background-color: var(--btn-hover);
}

/* 表单元素适配深色模式 */
[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea {
    background-color: var(--input-bg);
    border-color: var(--input-border);
    color: var(--input-text);
}

[data-theme="dark"] input:focus,
[data-theme="dark"] select:focus,
[data-theme="dark"] textarea:focus {
    border-color: #3498db;
    outline: none;
}

/* 文件卡片深色模式样式 */
[data-theme="dark"] .file {
    background: var(--file-bg);
    border-color: var(--file-border);
}

[data-theme="dark"] .file:hover {
    background: var(--btn-hover);
    border-color: var(--border-color);
}

/* 模态框深色模式样式 */
[data-theme="dark"] .modal-content {
    background-color: var(--modal-bg);
    border: 1px solid var(--border-color);
}

/* 提示框深色模式样式 */
[data-theme="dark"] .toast {
    background-color: var(--toast-bg);
}

/* 确保所有元素都有平滑的主题切换效果 */
* {
    transition: background-color 0.3s ease,
        color 0.3s ease,
        border-color 0.3s ease,
        box-shadow 0.3s ease;
}

/* 状态显示样式深色模式适配 */
[data-theme="dark"] .loading,
[data-theme="dark"] .error,
[data-theme="dark"] .empty {
    background: var(--loading-bg);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .loading {
    color: var(--loading-text);
}

[data-theme="dark"] .error {
    color: var(--error-text);
}

[data-theme="dark"] .empty {
    color: var(--empty-text);
}

/* 确认对话框深色模式样式 */
[data-theme="dark"] .confirm-dialog-content {
    background: var(--dialog-bg);
    color: var(--dialog-text);
    border: 1px solid var(--dialog-border);
}

[data-theme="dark"] .confirm-dialog-title {
    color: var(--heading-color);
}

[data-theme="dark"] .confirm-dialog-message {
    color: var(--text-color);
}

/* 加载动画深色模式样式 */
[data-theme="dark"] .loading-spinner {
    border: 2px solid var(--spinner-bg);
    border-top: 2px solid var(--spinner-border);
}

/* 文件信息深色模式样式 */
[data-theme="dark"] .file-preview {
    background-color: var(--file-bg);
    border-color: var(--file-border);
}

[data-theme="dark"] .file-name {
    color: var(--file-text);
}

[data-theme="dark"] .file-type,
[data-theme="dark"] .file-size {
    color: var(--file-subtext);
}

/* 图片预览深模式样式 */
[data-theme="dark"] #imagePreview {
    background-color: var(--file-bg);
    border-color: var(--file-border);
}

[data-theme="dark"] #editImage {
    background-color: var(--file-bg);
    border-color: var(--file-border);
}

[data-theme="dark"] #editImage:hover {
    border-color: #3498db;
}

/* 卡片样式深色模式适配 */
[data-theme="dark"] .text-block {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    box-shadow: 0 2px 4px var(--card-shadow);
}

[data-theme="dark"] .text-block>div {
    background: var(--card-inner-bg);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 0.5rem;
}

[data-theme="dark"] .text-block pre {
    background: var(--card-inner-bg);
    margin: 0;
    border: none;
}

[data-theme="dark"] .text-block .code {
    background: var(--card-inner-bg);
    padding: 0;
    border-radius: 4px;
    overflow: hidden;
}

[data-theme="dark"] .text-block code {
    background: transparent;
    color: var(--code-text);
}

[data-theme="dark"] .text-block-actions {
    background: var(--card-bg);
    margin-top: 1.5rem;
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    border-radius: 0 0 12px 12px;
}

/* 代码区域深色模式样式 */
[data-theme="dark"] pre {
    background-color: var(--code-block-bg);
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] pre code {
    background-color: transparent;
    color: var(--code-text);
    border: none;
}

[data-theme="dark"] .text-block pre {
    background-color: var(--code-block-bg);
    border: 1px solid var(--code-border);
}

/* 确保代码块内的所有元素背景色一致 */
[data-theme="dark"] pre * {
    background-color: transparent !important;
}

[data-theme="dark"] .language-javascript {
    color: var(--code-text);
}

/* 代码高亮深色模式样式 */
[data-theme="dark"] .token.comment,
[data-theme="dark"] .token.prolog,
[data-theme="dark"] .token.doctype,
[data-theme="dark"] .token.cdata {
    color: var(--code-comment);
}

[data-theme="dark"] .token.string,
[data-theme="dark"] .token.attr-value {
    color: var(--code-string);
}

[data-theme="dark"] .token.number,
[data-theme="dark"] .token.boolean {
    color: var(--code-number);
}

[data-theme="dark"] .token.keyword,
[data-theme="dark"] .token.operator {
    color: var(--code-keyword);
}

[data-theme="dark"] .token.function {
    color: var(--code-function);
}

[data-theme="dark"] .token.property,
[data-theme="dark"] .token.attr-name {
    color: var(--code-property);
}

[data-theme="dark"] .token.punctuation {
    color: var(--text-color);
}

/* 卡片基础样式 */
.text-block {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 1px 2px var(--card-shadow),
        0 2px 4px var(--card-shadow),
        0 4px 8px var(--card-shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.text-block h2 {
    color: var(--heading-color);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

/* 文件卡片样式 */
.file {
    background: var(--file-bg);
    display: flex;
    align-items: center;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid var(--file-border);
    margin: 1rem;
    transition: all 0.2s ease;
}

[data-theme="dark"] .file {
    background: var(--card-inner-bg);
    border: 1px solid var(--card-border);
    margin: 1.5rem;
    padding: 2rem;
}

/* 文件信息样式 */
.file-details {
    margin-left: 1.5rem;
}

/* 操作按钮区域样式 */
[data-theme="dark"] .text-block-actions {
    background: var(--card-bg);
    margin-top: 1.5rem;
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
    border-radius: 0 0 12px 12px;
}

/* 按钮间距 */
.text-block-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* 按钮样式 */
.btn {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 4rem;
    color: white;
}

.btn-copy {
    background-color: #9b59b6;
    color: white;
}

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

.btn-edit {
    background-color: #2ecc71;
    color: white;
}

.btn-delete {
    background-color: #e74c3c;
    color: white;
}

.btn:hover {
    transform: translateY(-1px);
    filter: brightness(1.1);
}

.btn:active {
    transform: translateY(0);
}

/* 表单元素样式 */
input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="search"],
input[type="tel"],
input[type="url"],
textarea,
select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    line-height: 1.5;
    color: var(--input-text);
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 6px;
    transition: all 0.2s ease-in-out;
    margin-bottom: 1rem;
}

input::placeholder,
textarea::placeholder {
    color: var(--input-placeholder);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--input-focus-border);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23666' viewBox='0 0 16 16'%3E%3Cpath d='M8 10.5l-4-4h8l-4 4z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* 表单组样式 */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: 500;
}

/* 操作区域样式 */
.text-block-actions {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    background: var(--card-bg);
}

/* 卡片头部样式 */
.text-block-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.text-block-header h2 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--heading-color);
    flex: 1;
}

.text-block-meta {
    font-size: 0.875rem;
    color: #666;
    margin-left: 1rem;
}

.modified-date {
    display: inline-flex;
    align-items: center;
    color: #666;
}

.modified-date::before {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    margin-right: 4px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23666666'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z'%3E%3C/path%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
    opacity: 0.7;
}

/* 深色模式适配 */
[data-theme="dark"] .text-block-meta {
    color: #999;
}

[data-theme="dark"] .modified-date {
    color: #999;
}

[data-theme="dark"] .modified-date::before {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23999999'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z'%3E%3C/path%3E%3C/svg%3E");
}

/* 自定义滚动条样式 */
.edit-form {
    scrollbar-width: thin;
    /* Firefox */
    scrollbar-color: rgba(0, 0, 0, 0.2) transparent;
    /* Firefox */
}

.edit-form::-webkit-scrollbar {
    width: 6px;
}

.edit-form::-webkit-scrollbar-track {
    background: transparent;
}

.edit-form::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 3px;
    border: none;
}

.edit-form::-webkit-scrollbar-thumb:hover {
    background-color: rgba(0, 0, 0, 0.3);
}

/* 暗色模式下的滚动条 */
@media (prefers-color-scheme: dark) {
    .edit-form {
        scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
    }

    .edit-form::-webkit-scrollbar-thumb {
        background-color: rgba(255, 255, 255, 0.2);
    }

    .edit-form::-webkit-scrollbar-thumb:hover {
        background-color: rgba(255, 255, 255, 0.3);
    }
}

.edit-modal {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 500px;
    background: var(--background-color);
    box-shadow: -2px 0 5px rgba(0, 0, 0, 0.1);
    padding: 20px;
    border-radius: 12px 0 0 12px;
    overflow: hidden;
    z-index: 1000;
}

.edit-form {
    height: calc(100% - 60px);
    overflow-y: auto;
    padding-right: 20px;
    margin-right: -20px;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 0, 0, 0.2) transparent;
}

/* 加载动画 */
@keyframes pulse {
    0% {
        transform: scale(0.8);
        opacity: 0.5;
    }

    50% {
        transform: scale(1.2);
        opacity: 0.8;
    }

    100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
}

    .loading {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        min-height: 200px;
        color: var(--text-color-secondary);
    }

    .loading::before {
        content: "";
        display: block;
        width: 40px;
        height: 40px;
        margin-bottom: 15px;
        border: 3px solid var(--text-color-secondary);
        border-radius: 50%;
        border-top-color: transparent;
        animation: spin 1s linear infinite;
    }

    @keyframes spin {
        to {
            transform: rotate(360deg);
        }
    }

    .loading-spinner {
        display: inline-block;
        width: 16px;
        height: 16px;
        border: 2px solid var(--text-color-secondary);
        border-radius: 50%;
        border-top-color: transparent;
        animation: spin 1s linear infinite;
        margin-left: 8px;
        vertical-align: middle;
    }

    /* 空状态动画 */
    .empty {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding: 4rem 2rem;
        text-align: center;
        background: var(--card-bg);
        border-radius: 16px;
        box-shadow: 0 1px 2px var(--card-shadow),
            0 2px 4px var(--card-shadow),
            0 4px 8px var(--card-shadow);
        margin: 2rem 0;
        border: 1px solid var(--border-color);
    }

    .empty-icon {
        font-size: 4rem;
        margin-bottom: 1.5rem;
        animation: pulse 2s infinite;
    }

    .empty-text {
        font-size: 1.5rem;
        color: var(--heading-color);
        margin-bottom: 1rem;
        font-weight: 600;
    }

    .empty-hint {
        font-size: 1rem;
        color: var(--text-color);
        opacity: 0.8;
    }

    @keyframes pulse {
        0% {
            transform: scale(1);
        }
        50% {
            transform: scale(1.1);
        }
        100% {
            transform: scale(1);
        }
    }

    /* 深色主题适配 */
    [data-theme="dark"] .empty {
        background: var(--card-bg);
        border-color: var(--border-color);
    }

    [data-theme="dark"] .empty-text {
        color: var(--heading-color);
    }

    [data-theme="dark"] .empty-hint {
        color: var(--text-color);
    }

    /* 加载动画 */
    @keyframes spin {
        0% {
            transform: rotate(0deg);
        }

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

    .loading {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        min-height: 100px;
        color: var(--text-color-secondary);
    }

    .loading::before {
        content: "";
        display: block;
        width: 40px;
        height: 40px;
        border: 4px solid #f3f3f3;
        border-top: 4px solid #3498db;
        border-radius: 50%;
        animation: spin 1s linear infinite;
    }

    .loading-text {
        margin-top: 15px;
        font-size: 14px;
        color: #666;
    }

    /* 深色模式适配 */
    [data-theme="dark"] .loading::before {
        border-color: #333;
        border-top-color: #3498db;
    }

    [data-theme="dark"] .loading-text {
        color: #999;
    }

    .file-icon {
        width: 32px;
        height: 32px;
        display: inline-block;
        background-size: contain;
        background-repeat: no-repeat;
        background-position: center;
        margin-right: 10px;
    }

    /* 现有文件类型图标 */
    .file-icon.markdown {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%234CAF50' d='M14.85 3H5.15A2.15 2.15 0 0 0 3 5.15v13.7A2.15 2.15 0 0 0 5.15 21h13.7A2.15 2.15 0 0 0 21 18.85V9.15L14.85 3Z'/%3E%3Cpath fill='white' d='M14.5 3v6.5H21'/%3E%3Cpath fill='white' d='M7 14.5v-5h2l2 2.5 2-2.5h2v5h-2v-3l-2 2.5-2-2.5v3H7z'/%3E%3C/svg%3E");
    }

    .file-icon.image {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23FF9800' d='M21 19V5c0-1.1-.9-2-2-2H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2zM8.5 13.5l2.5 3.01L14.5 12l4.5 6H5l3.5-4.5z'/%3E%3C/svg%3E");
    }

    .file-icon.pdf {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%23F44336' d='M20 2H8c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V4c0-1.1-.9-2-2-2zm-8.5 7.5c0 .83-.67 1.5-1.5 1.5H9v2H7.5V7H10c.83 0 1.5.67 1.5 1.5v1zm5 2c0 .83-.67 1.5-1.5 1.5h-2.5V7H15c.83 0 1.5.67 1.5 1.5v3zm4-3H19v1h1.5V11H19v2h-1.5V7h3v1.5zM9 9.5h1v-1H9v1zM4 6H2v14c0 1.1.9 2 2 2h14v-2H4V6zm10 5.5h1v-3h-1v3z'/%3E%3C/svg%3E");
    }

    .file-icon.word {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%232196F3' d='M19 3H5c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h14c1.1 0 2-.9 2-2V5c0-1.1-.9-2-2-2zm-3.5 14H14l-2-7.5-2 7.5H8.5L6.1 7h1.7l1.54 7.5L11.3 7h1.4l1.97 7.5L16.2 7h1.7l-2.4 10z'/%3E%3C/svg%3E");
    }

    .file-icon.excel {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%234CAF50' d='M14 2H6c-1.1 0-2 .9-2 2v16c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V8l-6-6zM6 20V4h7v5h5v11H6z'/%3E%3C/svg%3E");
    }

    .file-icon.powerpoint {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Crect fill='%23d24726' x='2' y='2' width='20' height='20' rx='4'/%3E%3Cpath fill='white' d='M8 17V7h5c1.1 0 2 .9 2 2v2.5c0 1.1-.9 2-2 2H9.5v3.5H8zm1.5-5h3c.3 0 .5-.2.5-.5v-2c0-.3-.2-.5-.5-.5h-3v3z'/%3E%3C/svg%3E");
    }

    .file-icon.text {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%239E9E9E' d='M14 2H6c-1.1 0-2 .9-2 2v16c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V8l-6-6zm2 14H8v-2h8v2zm0-4H8v-2h8v2zm-3-5V3.5L18.5 9H13z'/%3E%3C/svg%3E");
    }

    /* 应用程序文件图标 */
    .file-icon.windows {
        background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNCAyNCI+PHBhdGggZmlsbD0iIzAwNzhENiIgZD0iTTMgNS41NTdsNy4zNTctLjk2N3Y3LjExNkwzIDExLjY3MVY1LjU1N3ptMCA2LjY4Nmw3LjM1Ny0uOTY3djcuMTE2TDMgMTcuMzI4di01LjA4NXpNMTEuNSA0LjQ3N2w5LjUtMS4zMTJ2OC41NDFsLTkuNS0uOTY3VjQuNDc3em0wIDguMTU2bDkuNS0uOTY3djguNTQxbC05LjUtMS4zMTJ2LTYuMjYyeiIvPjwvc3ZnPg==");
    }

    .file-icon.windows-installer {
        background-image: url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNCAyNCI+PHBhdGggZmlsbD0iI0Y0NDMzNiIgZD0iTTE3IDJIN2MtMS4xIDAtMiAuOS0yIDJ2MTZjMCAxLjEuOSAyIDIgMmgxMGMxLjEgMCAyLS45IDItMlY0YzAtMS4xLS45LTItMi0yem0tMSAxMWgtMnYyaC0ydi0ySDh2LTJoNFY5aC00VjdoNFY1aDJ2MmgydjJoLTJ2MmgydjJ6Ii8+PC9zdmc+");
    }

    .file-icon.android {
        background-image: url("data:image/svg+xml;base64,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");
    }

    .file-icon.macos {
        background-image: url("data:image/svg+xml;base64,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");
    }

    .file-icon.linux {
        background-image: url("data:image/svg+xml;base64,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");
    }

    .file-icon.ios {
        background-image: url("data:image/svg+xml;base64,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");
    }

    /* 骨架屏动画 */
    @keyframes shimmer {
        0% { background-position: -1000px 0; }
        100% { background-position: 1000px 0; }
    }

    .skeleton {
        background: var(--card-bg);
        border-radius: 16px;
        padding: 2rem;
        margin-bottom: 2rem;
        box-shadow: 0 1px 2px var(--card-shadow),
            0 2px 4px var(--card-shadow),
            0 4px 8px var(--card-shadow);
        border: 1px solid var(--border-color);
        overflow: hidden;
    }

    .skeleton-title {
        height: 32px;
        background: linear-gradient(90deg, 
            var(--skeleton-start) 25%, 
            var(--skeleton-middle) 50%, 
            var(--skeleton-start) 75%
        );
        background-size: 1000px 100%;
        animation: shimmer 2s infinite linear;
        margin-bottom: 1rem;
        border-radius: 6px;
        width: 60%;
    }

    .skeleton-meta {
        height: 20px;
        background: linear-gradient(90deg, 
            var(--skeleton-start) 25%, 
            var(--skeleton-middle) 50%, 
            var(--skeleton-start) 75%
        );
        background-size: 1000px 100%;
        animation: shimmer 2s infinite linear;
        margin-bottom: 2rem;
        border-radius: 4px;
        width: 40%;
    }

    .skeleton-line {
        height: 20px;
        background: linear-gradient(90deg, 
            var(--skeleton-start) 25%, 
            var(--skeleton-middle) 50%, 
            var(--skeleton-start) 75%
        );
        background-size: 1000px 100%;
        animation: shimmer 2s infinite linear;
        margin-bottom: 1rem;
        border-radius: 4px;
    }

    .skeleton-line:nth-child(1) { width: 100%; }
    .skeleton-line:nth-child(2) { width: 92%; }
    .skeleton-line:nth-child(3) { width: 85%; }

    /* 骨架屏颜色变量 */
    :root {
        --skeleton-start: #f0f0f0;
        --skeleton-middle: #e0e0e0;
    }

    [data-theme="dark"] {
        --skeleton-start: #2d2d2d;
        --skeleton-middle: #3d3d3d;
    }