/* 全局样式 */
:root {
    --primary-color: #4CAF50;
    --primary-hover: #388E3C;
    --primary-active: #2E7D32;
    --background-light: #f8f9fa;
    --background-dark: #1a1b1e;
    --text-light: #24292e;
    --text-dark: #e5e7eb;
    --border-light: #e5e7eb;
    --border-dark: #2d2d2d;
    --shadow-light: 0 2px 12px rgba(0, 0, 0, 0.1);
    --shadow-dark: 0 2px 12px rgba(0, 0, 0, 0.3);
    --container-bg-light: #ffffff;
    --container-bg-dark: #25262b;
    --error-color: #dc2626;
    --error-bg: #fef2f2;
    --error-border: #f87171;
    --lazy-load-bg: #f3f4f6;
    --lazy-load-bg-dark: #2d2d2d;
}

[data-theme="dark"] {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --primary-active: #4338ca;
    --background: var(--background-dark);
    --text: var(--text-dark);
    --border: var(--border-dark);
    --shadow: var(--shadow-dark);
    --container-bg: var(--container-bg-dark);
    --error-color: #ef4444;
    --error-bg: #7f1d1d;
    --error-border: #b91c1c;
    --lazy-load-bg: var(--lazy-load-bg-dark);
}

[data-theme="light"] {
    --background: var(--background-light);
    --text: var(--text-light);
    --border: var(--border-light);
    --shadow: var(--shadow-light);
    --container-bg: var(--container-bg-light);
    --lazy-load-bg: var(--lazy-load-bg);
}

/* 基础样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    margin: 0;
    padding: 20px;
    background: var(--background);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
    background: var(--container-bg);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* 按钮容器样式 */
.buttons-container {
    display: flex;
    justify-content: center;
    margin-bottom: 32px;
    gap: 16px;
    flex-wrap: wrap;
}

/* 按钮样式 */
button {
    padding: 12px 24px;
    border: none;
    border-radius: 12px;
    background-color: var(--primary-color);
    color: white;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    background-color: var(--primary-hover);
}

button:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    background-color: var(--primary-active);
}

/* 编辑器布局 */
.boxes {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 16px;
    height: 600px; /* 增加高度 */
    box-sizing: border-box;
}

/* URL编解码、时间戳和密码生成器页面的编辑器高度 */
.url-encode .boxes,
.timestamp-convert .boxes {
    height: 200px;
}

/* 密码生成器样式 */
.password-generator {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.options-panel {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 12px;
    background-color: var(--container-bg);
    padding: 16px;
    border-radius: 8px;
    border: 1px solid var(--border);
    margin-bottom: 10px;
}

.option-group {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.option-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.option-group input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.option-group input[type="number"] {
    width: 60px;
    padding: 6px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background-color: var(--container-bg);
    color: var(--text);
}

.password-result {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
}

.password-display {
    width: 100%;
}

.password-display input {
    width: 100%;
    padding: 12px 16px;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', 'Menlo', 'Consolas', monospace;
    font-size: 16px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background-color: var(--container-bg);
    color: var(--text);
    box-sizing: border-box;
}

.password-strength {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.strength-meter {
    width: 100%;
    height: 8px;
    background-color: var(--border);
    border-radius: 4px;
    overflow: hidden;
}

#strength-bar {
    height: 100%;
    width: 0;
    background-color: #2db92d;
    transition: width 0.3s ease, background-color 0.3s ease;
}

#strength-text {
    font-size: 14px;
    text-align: right;
}

/* 输入区域样式 */
textarea {
    width: 100%;
    height: 100%;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', 'Menlo', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.5;
    resize: none;
    background-color: var(--container-bg);
    color: var(--text);
    box-sizing: border-box;
    min-width: 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

textarea::placeholder {
    color: var(--placeholder);
    opacity: 0.8;
}

/* 输出区域样式 */
pre {
    width: 100%;
    height: 100%;
    padding: 16px;
    margin: 0;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', 'Menlo', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.5;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
    background-color: var(--container-bg);
    color: var(--text);
    box-sizing: border-box;
    min-width: 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: relative;
}

/* 错误提示样式 */
.error {
    color: var(--error-color);
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', 'Menlo', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.5;
    padding: 16px;
    background-color: var(--error-bg);
    border: 1px solid var(--error-border);
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin: 0;
    height: 100%;
    box-sizing: border-box;
    display: flex;
    align-items: flex-start;
}

/* 按钮组样式 */
.button-group {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.button-group button {
    padding: 8px 16px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s ease;
}

.button-group button:hover {
    background-color: var(--primary-hover);
}

.button-group button:active {
    background-color: var(--primary-active);
}

/* 数据大小指示器样式 */
.size-indicator {
    display: flex;
    align-items: center;
    padding: 8px 12px;
    background: rgba(76, 175, 80, 0.1);
    border: 1px solid rgba(76, 175, 80, 0.2);
    border-radius: 4px;
    margin-left: auto;
    transition: all 0.2s ease;
}

.size-indicator:hover {
    background: rgba(76, 175, 80, 0.15);
    transform: translateY(-1px);
}

.size-text {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-color);
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', 'Menlo', 'Consolas', monospace;
}

/* 暗色主题下的数据大小指示器样式 */
[data-theme="dark"] .size-indicator {
    background: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.3);
}

[data-theme="dark"] .size-indicator:hover {
    background: rgba(99, 102, 241, 0.2);
}

[data-theme="dark"] .size-text {
    color: #6366f1;
}

/* 响应式设计 - 数据大小指示器 */
@media (max-width: 768px) {
    .size-indicator {
        margin-left: 0;
        margin-top: 8px;
        width: 100%;
        justify-content: center;
    }

    .size-text {
        font-size: 12px;
    }
}

/* 暗色主题样式 */
[data-theme="dark"] textarea,
[data-theme="dark"] pre {
    background: var(--dark-bg);
    border-color: var(--dark-border);
    color: var(--dark-text);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

[data-theme="dark"] textarea::placeholder {
    color: var(--dark-placeholder);
    opacity: 0.6;
}

/* 响应式布局 */
@media (max-width: 768px) {
    .boxes {
        grid-template-columns: 1fr;
        height: auto; /* 在移动设备上自适应高度 */
    }
    
    .container {
        padding: 16px;
    }

    textarea, pre {
        height: 300px; /* 在移动设备上设置固定高度 */
    }
}

/* JSON格式化样式 */
.string { color: #98c379; }
.number { color: #d19a66; }
.boolean { color: #61afef; }
.null { color: #c678dd; }
.key { 
    color: #e06c75; 
}

/* 暗黑模式下的JSON格式化样式 */
[data-theme="dark"] .string { color: #9ece6a !important; }
[data-theme="dark"] .number { color: #ff9e64 !important; }
[data-theme="dark"] .boolean { color: #7aa2f7 !important; }
[data-theme="dark"] .null { color: #bb9af7 !important; }
[data-theme="dark"] .key { color: #f7768e !important; }

/* 主题切换按钮 */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    color: var(--text);
    transition: color 0.2s ease;
    margin-left: 16px;
}

.theme-toggle:hover {
    color: var(--primary-color);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content,
    .footer-content {
        flex-direction: column;
        text-align: center;
        padding: 0 16px;
    }

    .nav-links {
        flex-direction: column;
        gap: 16px;
        align-items: center;
    }

    .theme-toggle {
        margin: 16px 0 0 0;
    }

    .footer {
        margin-top: 32px;
        padding: 16px 0;
    }
}

/* 暗色模式样式 */
[data-theme="dark"] {
    background: #1a1a1a !important;
    color: #e5e7eb;
}

[data-theme="dark"] body {
    background: #1a1a1a;
    color: #e5e7eb;
}

[data-theme="dark"] .container {
    background: #2d2d2d;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
    border: 1px solid #404040;
}

[data-theme="dark"] button {
    background-color: #4CAF50;
    color: #ffffff;
    border: none;
}

[data-theme="dark"] button:hover {
    background-color: #388E3C;
}

[data-theme="dark"] textarea,
[data-theme="dark"] pre {
    background: #1a1a1a;
    border-color: #404040;
    color: #e5e7eb;
}

[data-theme="dark"] textarea:hover,
[data-theme="dark"] pre:hover {
    border-color: #4a4a4a;
}

[data-theme="dark"] textarea:focus,
[data-theme="dark"] pre:focus {
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

[data-theme="dark"] #time-output {
    background: #1a1a1a;
    border-color: #404040;
    color: #e5e7eb;
}

[data-theme="dark"] .theme-toggle {
    background: #2d2d2d;
    border-color: #404040;
    color: #e5e7eb;
}

[data-theme="dark"] .theme-toggle:hover {
    background: #3d3d3d;
    border-color: #505050;
}

[data-theme="dark"] .theme-toggle svg {
    fill: #e5e7eb;
    stroke: #e5e7eb;
}

[data-theme="dark"] ::placeholder {
    color: #6b7280;
}

/* JSON格式化暗色模式样式 */
[data-theme="dark"] .json-formatter-row {
    color: #e5e7eb !important;
}

[data-theme="dark"] .json-formatter-row .json-formatter-string {
    color: #9ece6a !important;
}

[data-theme="dark"] .json-formatter-row .json-formatter-number {
    color: #ff9e64 !important;
}

[data-theme="dark"] .json-formatter-row .json-formatter-boolean {
    color: #7aa2f7 !important;
}

[data-theme="dark"] .json-formatter-row .json-formatter-null {
    color: #bb9af7 !important;
}

[data-theme="dark"] .json-formatter-row .json-formatter-object-bracket,
[data-theme="dark"] .json-formatter-row .json-formatter-array-bracket {
    color: #89ddff !important;
}

[data-theme="dark"] .json-formatter-row .json-formatter-key {
    color: #f7768e !important;
    opacity: 0.9 !important;
}

[data-theme="dark"] .json-formatter-row .json-formatter-bracket {
    color: #89ddff !important;
}

[data-theme="dark"] .json-formatter-row .json-formatter-comma {
    color: #565f89 !important;
}

[data-theme="dark"] .json-formatter-row a {
    color: inherit !important;
}

[data-theme="dark"] .json-formatter-row > a > .json-formatter-preview-text {
    color: #e5e7eb !important;
}

[data-theme="dark"] .json-formatter-row .json-formatter-toggler {
    color: #e5e7eb !important;
}

[data-theme="dark"] .json-formatter-row .json-formatter-toggler:after {
    color: #e5e7eb !important;
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: none;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    z-index: 1000;
    padding: 0;
}

.back-to-top:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.back-to-top svg {
    width: 26px;
    height: 26px;
}

@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
    
    .back-to-top svg {
        width: 22px;
        height: 22px;
    }
}

/* 可折叠区域 */
.collapsible {
    display: inline;
    cursor: pointer;
}

.toggle-icon {
    display: inline-block;
    width: 1em;
    height: 1em;
    text-align: center;
    color: #6b7280;
    cursor: pointer;
    user-select: none;
    transition: transform 0.2s ease;
}

.toggle-icon:hover {
    color: #0366d6;
}

.content {
    white-space: pre;
}

.content.collapsed {
    display: none;
}

/* 数组长度显示 */
.array-length {
    color: #6b7280;
    font-size: 0.9em;
    margin-left: 0.5em;
    font-style: italic;
}

/* 页眉 */
.header {
    background: var(--container-bg, #ffffff);
    padding: 16px 0;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--border, #e5e7eb);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 600;
    color: var(--text, #24292e);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 24px;
}

.nav-link {
    color: var(--text, #24292e);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--primary-color, #4CAF50);
}

.nav-link.active {
    color: var(--primary-color, #4CAF50);
}

/* 页脚 */
.footer {
    background: var(--container-bg, #ffffff);
    padding: 24px 0;
    margin-top: 48px;
    border-top: 1px solid var(--border, #e5e7eb);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-info {
    font-size: 14px;
    color: var(--text, #24292e);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-link {
    color: var(--text, #24292e);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--primary-color, #4CAF50);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content,
    .footer-content {
        flex-direction: column;
        text-align: center;
        padding: 0 16px;
    }

    .nav-links,
    .footer-links {
        flex-direction: column;
        gap: 16px;
    }

    .footer {
        margin-top: 32px;
        padding: 16px 0;
    }
}

/* 输入组样式 */
.input-group {
    display: flex;
    flex-direction: column;
    flex: 1;
    gap: 8px;
}

/* 按钮组样式 */
.button-group {
    display: flex;
    gap: 8px;
}

.button-group button {
    padding: 8px 16px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s ease;
}

.button-group button:hover {
    background-color: var(--primary-hover);
}

.button-group button:active {
    background-color: var(--primary-active);
}

@media (max-width: 768px) {
    .button-group {
        flex-wrap: wrap;
    }
}

/* 虚拟滚动相关样式 */
.virtual-scroll-container {
    position: relative;
    overflow: auto;
    height: 100%;
    width: 100%;
}

.virtual-scroll-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
}

/* 延迟加载样式 */
.lazy-load {
    padding: 8px;
    margin: 4px 0;
    background-color: var(--lazy-load-bg);
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
    transition: background-color 0.2s ease;
}

.lazy-load:hover {
    background-color: var(--primary-color);
    color: white;
}

/* 加载指示器 */
.loading-indicator {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

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

/* 大型数据提示 */
.large-data-notice {
    padding: 8px;
    margin: 4px 0;
    background-color: rgba(255, 193, 7, 0.1);
    border-left: 3px solid #ffc107;
    color: #856404;
    font-size: 0.9em;
}

[data-theme="dark"] .large-data-notice {
    background-color: rgba(255, 193, 7, 0.05);
    color: #e5e7eb;
    border-left-color: #ffc107;
}

/* 性能优化提示 */
.performance-tip {
    margin-top: 8px;
    padding: 8px;
    background-color: rgba(13, 110, 253, 0.1);
    border-left: 3px solid #0d6efd;
    color: #084298;
    font-size: 0.9em;
}

[data-theme="dark"] .performance-tip {
    background-color: rgba(13, 110, 253, 0.05);
    color: #e5e7eb;
    border-left-color: #0d6efd;
}

/* 虚拟滚动相关样式 */
.virtual-scroll-viewport {
    height: 100%;
    width: 100%;
    overflow: auto;
    position: relative;
}

.virtual-scroll-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
}

.virtual-scroll-spacer {
    position: absolute;
    left: 0;
    top: 0;
    height: 1px;
    width: 1px;
    visibility: hidden;
}

/* 加载更多按钮 */
.load-more {
    display: block;
    width: 100%;
    padding: 8px;
    margin: 8px 0;
    text-align: center;
    background-color: var(--lazy-load-bg);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    color: var(--text);
    transition: background-color 0.2s ease;
}

.load-more:hover {
    background-color: var(--primary-color);
    color: white;
}

/* 复制按钮样式 */
.copy-btn {
    display: inline-block;
    margin-left: 4px;
    cursor: pointer;
    opacity: 0.5;
    font-size: 0.9em;
    transition: opacity 0.2s ease;
    vertical-align: middle;
}

.copy-btn:hover {
    opacity: 1;
}

/* 提示消息样式 */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 10px 20px;
    border-radius: 4px;
    background-color: #4CAF50;
    color: white;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    animation: fadeIn 0.3s, fadeOut 0.3s 1.7s;
}

.toast.error {
    background-color: #f44336;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeOut {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(-20px); }
}

/* 暗色主题下的复制按钮样式 */
[data-theme="dark"] .copy-btn {
    color: #e5e7eb;
}

/* Base64工具样式 */
.tool-tabs {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border);
}

.tab-button {
    padding: 12px 24px;
    border: none;
    background: transparent;
    color: var(--text);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
    font-size: 16px;
    font-weight: 500;
}

.tab-button:hover {
    background-color: rgba(76, 175, 80, 0.1);
    transform: none;
    box-shadow: none;
}

.tab-button.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background-color: rgba(76, 175, 80, 0.05);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* 文件上传区域样式 */
.file-upload-section {
    margin-bottom: 20px;
}

.upload-area {
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: var(--lazy-load-bg);
}

.upload-area:hover {
    border-color: var(--primary-color);
    background-color: rgba(76, 175, 80, 0.05);
}

.upload-area.drag-over {
    border-color: var(--primary-color);
    background-color: rgba(76, 175, 80, 0.1);
    transform: scale(1.02);
}

.upload-content svg {
    color: var(--primary-color);
    margin-bottom: 16px;
}

.upload-content p {
    margin: 8px 0;
    color: var(--text);
    font-size: 16px;
    font-weight: 500;
}

.upload-hint {
    font-size: 14px !important;
    color: rgba(var(--text), 0.7) !important;
    font-weight: 400 !important;
}

/* 文件信息样式 */
.file-info {
    background-color: var(--lazy-load-bg);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 20px;
    border-left: 4px solid var(--primary-color);
}

.file-info h3 {
    margin: 0 0 12px 0;
    color: var(--primary-color);
    font-size: 18px;
}

.file-info p {
    margin: 8px 0;
    font-size: 14px;
    line-height: 1.5;
}

.file-info strong {
    color: var(--text);
    font-weight: 600;
}

/* 图片预览样式 */
#image-preview {
    background-color: var(--lazy-load-bg);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 16px;
    text-align: center;
}

#image-preview h3 {
    margin: 0 0 16px 0;
    color: var(--primary-color);
    font-size: 18px;
}

#preview-image {
    max-width: 100%;
    max-height: 300px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border: 2px solid var(--border);
}

/* 文件输出区域样式 */
#file-output {
    height: 100%;
    display: flex;
    flex-direction: column;
}

#file-base64-output {
    flex: 1;
    margin: 0;
    padding: 16px;
    background-color: var(--lazy-load-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', 'Menlo', 'Consolas', monospace;
    font-size: 13px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-all;
    overflow-y: auto;
    min-height: 200px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .tool-tabs {
        flex-direction: column;
    }

    .tab-button {
        border-bottom: none;
        border-right: 3px solid transparent;
        text-align: left;
    }

    .tab-button.active {
        border-bottom: none;
        border-right-color: var(--primary-color);
    }

    .upload-area {
        padding: 30px 15px;
    }

    .upload-content p {
        font-size: 14px;
    }

    .file-info {
        padding: 12px;
    }

    #image-preview {
        padding: 12px;
    }

    #preview-image {
        max-height: 200px;
    }
}

/* 暗色主题下的特殊样式 */
[data-theme="dark"] .upload-area {
    border-color: var(--border-dark);
}

[data-theme="dark"] .upload-area:hover {
    border-color: var(--primary-color);
}

[data-theme="dark"] .upload-hint {
    color: rgba(229, 231, 235, 0.7) !important;
}

[data-theme="dark"] #preview-image {
    border-color: var(--border-dark);
}

/* 压缩解压工具样式 */
.compress-tool {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.tool-header {
    text-align: center;
    margin-bottom: 24px;
}

.tool-header h1 {
    margin: 0 0 8px 0;
    color: var(--text);
    font-size: 28px;
    font-weight: 600;
}

.tool-header p {
    margin: 0;
    color: var(--text);
    opacity: 0.8;
    font-size: 16px;
}

.algorithm-selector {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background-color: var(--lazy-load-bg);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.algorithm-selector label {
    font-weight: 500;
    color: var(--text);
    font-size: 14px;
}

.algorithm-selector select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background-color: var(--container-bg);
    color: var(--text);
    font-size: 14px;
    cursor: pointer;
    min-width: 120px;
}

.algorithm-selector select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
}

.io-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    min-height: 500px;
}

.input-section,
.output-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border);
}

.section-header h3 {
    margin: 0;
    color: var(--text);
    font-size: 18px;
    font-weight: 600;
}

.size-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--primary-color);
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', 'Menlo', 'Consolas', monospace;
    font-weight: 500;
}

.io-container textarea {
    flex: 1;
    min-height: 400px;
    resize: vertical;
}

.file-upload {
    display: flex;
    gap: 8px;
    align-items: center;
}

.file-upload button {
    padding: 8px 16px;
    font-size: 14px;
    background-color: var(--lazy-load-bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.file-upload button:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: none;
    box-shadow: none;
}

.output-actions {
    display: flex;
    gap: 8px;
}

.output-actions button {
    padding: 8px 16px;
    font-size: 14px;
    background-color: var(--lazy-load-bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.output-actions button:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: none;
    box-shadow: none;
}

.stats-panel {
    background-color: var(--lazy-load-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    margin-top: 16px;
}

.stats-panel h4 {
    margin: 0 0 16px 0;
    color: var(--text);
    font-size: 18px;
    font-weight: 600;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background-color: var(--container-bg);
    border-radius: 6px;
    border: 1px solid var(--border);
}

.stat-label {
    font-weight: 500;
    color: var(--text);
    font-size: 14px;
}

.stat-value {
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Source Code Pro', 'Menlo', 'Consolas', monospace;
    font-weight: 600;
    color: var(--primary-color);
    font-size: 14px;
}

.primary-btn {
    background-color: var(--primary-color) !important;
    color: white !important;
}

.primary-btn:hover {
    background-color: var(--primary-hover) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(76, 175, 80, 0.3);
}

.secondary-btn {
    background-color: var(--lazy-load-bg) !important;
    color: var(--text) !important;
    border: 1px solid var(--border) !important;
}

.secondary-btn:hover {
    background-color: var(--primary-color) !important;
    color: white !important;
    border-color: var(--primary-color) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(76, 175, 80, 0.3);
}

/* 拖拽上传样式 */
.container.drag-over {
    border: 2px dashed var(--primary-color);
    background-color: rgba(76, 175, 80, 0.05);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .io-container {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .size-info {
        align-self: flex-end;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .stat-item {
        padding: 10px;
    }

    .algorithm-selector {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .algorithm-selector select {
        width: 100%;
    }

    .button-group {
        flex-wrap: wrap;
        gap: 8px;
    }

    .button-group button {
        flex: 1;
        min-width: 120px;
    }

    .file-upload,
    .output-actions {
        flex-wrap: wrap;
    }

    .file-upload button,
    .output-actions button {
        flex: 1;
        min-width: 100px;
    }
}

/* 暗色主题下的压缩工具样式 */
[data-theme="dark"] .algorithm-selector select {
    background-color: var(--container-bg-dark);
    border-color: var(--border-dark);
    color: var(--text-dark);
}

[data-theme="dark"] .algorithm-selector select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}