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

:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    transition: var(--transition);
}

/* 顶部导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: var(--card-bg);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    padding: 0 30px;
    z-index: 1000;
}

.nav-left {
    flex: 0 0 280px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 28px;
}

.nav-center {
    flex: 1;
    max-width: 600px;
}

.tool-search {
    position: relative;
}

.tool-search input {
    width: 100%;
    padding: 12px 45px 12px 18px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 14px;
    background: var(--bg-color);
    color: var(--text-primary);
    transition: var(--transition);
}

.tool-search input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.tool-search i {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.nav-right {
    flex: 0 0 200px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 20px;
}

.theme-toggle {
    padding: 10px;
    border: none;
    background: var(--bg-color);
    border-radius: 10px;
    cursor: pointer;
    color: var(--text-primary);
    transition: var(--transition);
}

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

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

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

/* 主容器布局 */
.main-container {
    display: flex;
    margin-top: 160px;
    min-height: calc(100vh - 160px);
}

/* 顶部横幅广告位 */
.ad-banner-top {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    height: 90px;
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ad-banner-top .ad-container {
    width: 728px;
    height: 90px;
    position: relative;
}

/* 新增工具面板样式 */
.password-options {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.option-group {
    margin-bottom: 15px;
}

.option-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
}

.option-group input[type="range"] {
    width: 100%;
    margin-right: 10px;
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: normal;
    cursor: pointer;
}

.password-output {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.password-output input {
    flex: 1;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Monaco', 'Consolas', monospace;
    background: var(--bg-color);
    color: var(--text-primary);
}

.generate-btn {
    padding: 12px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.generate-btn:hover {
    background: #1d4ed8;
}

.password-strength {
    padding: 10px;
    border-radius: 8px;
    font-size: 14px;
    text-align: center;
}

.strength-weak {
    background: #fee2e2;
    color: #dc2626;
}

.strength-medium {
    background: #fef3c7;
    color: #d97706;
}

.strength-strong {
    background: #d1fae5;
    color: #059669;
}

/* 文本对比样式 */
.diff-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.diff-column h4 {
    margin-bottom: 10px;
    color: var(--text-primary);
}

.diff-column textarea {
    width: 100%;
    min-height: 200px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Monaco', 'Consolas', monospace;
    resize: vertical;
    background: var(--bg-color);
    color: var(--text-primary);
}

.diff-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.diff-result {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 12px;
    overflow-x: auto;
}

.diff-line {
    padding: 5px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 13px;
}

.diff-added {
    background: #d1fae5;
    color: #059669;
}

.diff-removed {
    background: #fee2e2;
    color: #dc2626;
}

/* 图片上传区域 */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 20px;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: var(--bg-color);
}

.upload-area i {
    font-size: 48px;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.upload-area p {
    color: var(--text-secondary);
}

.image-preview {
    text-align: center;
    margin-bottom: 20px;
}

.image-preview img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

/* 二维码生成器 */
.qr-input-section {
    margin-bottom: 20px;
}

.qr-input-section textarea {
    width: 100%;
    min-height: 140px;
    padding: 18px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 15px;
    line-height: 1.6;
    font-family: inherit;
    resize: vertical;
    background: var(--bg-color);
    color: var(--text-primary);
    transition: var(--transition);
}

.qr-input-section textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.qr-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.qr-result {
    text-align: center;
    padding: 20px;
}

.qr-result canvas {
    margin: 0 auto;
    display: block;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--success-color);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    margin-top: 15px;
    transition: var(--transition);
}

.download-btn:hover {
    background: #059669;
}

.ad-label {
    position: absolute;
    top: 2px;
    left: 2px;
    font-size: 10px;
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.05);
    padding: 2px 6px;
    border-radius: 3px;
    z-index: 1;
}

.ad-content {
    width: 100%;
    height: 100%;
}

.ad-content img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* 右侧广告位之间的间隔 */
.right-sidebar .ad-sidebar,
.right-sidebar .ad-small {
    margin-top: 20px;
}

.ad-link {
    display: block;
    width: 100%;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

/* 左侧边栏样式 */
.sidebar {
    width: 280px;
    background: var(--card-bg);
    border-right: 1px solid var(--border-color);
    padding: 20px 0;
    overflow-y: auto;
    transition: var(--transition);
    position: relative;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.sidebar::-webkit-scrollbar {
    width: 0;
    height: 0;
    display: none;
}

.sidebar.collapsed {
    width: 60px;
}

.sidebar-toggle {
    position: absolute;
    right: -15px;
    top: 20px;
    width: 30px;
    height: 30px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    transition: var(--transition);
}

.sidebar.collapsed .sidebar-toggle {
    transform: rotate(180deg);
}

.sidebar.collapsed .category-title span,
.sidebar.collapsed .tool-item span {
    display: none;
}

.sidebar.collapsed .category-title {
    justify-content: center;
    padding: 0 10px;
}

.sidebar.collapsed .tool-item {
    justify-content: center;
    padding: 12px 10px;
}

.sidebar.collapsed .tool-item i {
    margin: 0;
}

/* 分类展开/收缩样式 */
.category-title {
    cursor: pointer;
    transition: var(--transition);
}

.category-title:hover {
    background: var(--bg-color);
}

.category-arrow {
    transition: transform 0.3s ease;
    margin-right: 8px;
}

.category-section.collapsed .category-arrow {
    transform: rotate(-90deg);
}

.category-section.collapsed .tool-list {
    display: none;
}

.category-title i {
    font-size: 18px;
    width: 20px;
    text-align: center;
}

.category-section {
    margin-bottom: 30px;
}

.category-title {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 20px 15px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.category-title i {
    font-size: 18px;
}

.tool-list {
    list-style: none;
    padding: 10px 0;
}

.tool-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    cursor: pointer;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.tool-item:hover {
    background: var(--bg-color);
    border-left-color: var(--primary-color);
}

.tool-item.active {
    background: var(--primary-color);
    color: white;
    border-left-color: var(--primary-color);
}

.tool-item i {
    font-size: 18px;
    width: 20px;
    text-align: center;
}

/* 主内容区域样式 */
.content-area {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
    background: var(--bg-color);
}

.tool-panel {
    display: none;
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: var(--shadow);
    overflow: hidden;
    animation: fadeIn 0.3s ease;
}

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

.tool-panel.active {
    display: block;
}

.tool-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 1px solid var(--border-color);
}

.tool-header h2 {
    font-size: 24px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 12px;
}

.tool-actions {
    display: flex;
    gap: 12px;
}

.action-btn {
    padding: 10px 20px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    color: var(--text-primary);
}

.action-btn:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.tool-content {
    padding: 30px;
}

.input-section textarea {
    width: 100%;
    min-height: 200px;
    padding: 18px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 14px;
    font-family: 'Monaco', 'Consolas', monospace;
    resize: vertical;
    background: var(--bg-color);
    color: var(--text-primary);
    transition: var(--transition);
}

.input-section textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.output-section {
    margin-top: 25px;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.result-header span {
    font-weight: 600;
    color: var(--text-primary);
}

.copy-btn {
    padding: 8px 16px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.copy-btn:hover {
    background: #1d4ed8;
}

#jsonOutput,
#base64Output,
#urlOutput {
    background: var(--bg-color);
    padding: 18px;
    border-radius: 12px;
    overflow-x: auto;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 13px;
    line-height: 1.5;
    min-height: 200px;
    color: var(--text-primary);
}

.tool-footer {
    padding: 20px 30px;
    background: var(--bg-color);
    border-top: 1px solid var(--border-color);
}

.stats {
    display: flex;
    gap: 25px;
    font-size: 13px;
    color: var(--text-secondary);
}

/* 右侧边栏样式 */
.right-sidebar {
    width: 240px;
    background: var(--card-bg);
    border-left: 1px solid var(--border-color);
    padding: 20px;
    overflow-y: auto;
}

.quick-tools h3,
.history-panel h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.quick-tool-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 30px;
}

.quick-tool {
    padding: 15px 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
}

.quick-tool:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.quick-tool i {
    font-size: 20px;
}

.quick-tool span {
    font-size: 12px;
}

.history-list {
    max-height: 155px;
    overflow-y: auto;
}

.empty-history {
    text-align: center;
    color: var(--text-secondary);
    padding: 30px 0;
}

.empty-history i {
    font-size: 32px;
    margin-bottom: 10px;
    opacity: 0.5;
}

/* Base64工具特定样式 */
.tool-mode {
    display: flex;
    background: var(--bg-color);
    border-radius: 8px;
    padding: 4px;
}

.mode-btn {
    padding: 10px 20px;
    border: none;
    background: transparent;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition);
    color: var(--text-primary);
}

.mode-btn.active {
    background: var(--primary-color);
    color: white;
}

.mode-btn:hover:not(.active) {
    background: var(--border-color);
}

/* 时间戳工具特定样式 */
.timestamp-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.input-group input {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    background: var(--bg-color);
    color: var(--text-primary);
    transition: var(--transition);
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.timestamp-results {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 12px;
}

.result-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.result-item:last-child {
    border-bottom: none;
}

.result-label {
    font-weight: 600;
    color: var(--text-secondary);
}

/* 工具提示样式 */
.tooltip {
    position: fixed;
    background: var(--text-primary);
    color: var(--card-bg);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 2000;
}

.tooltip.show {
    opacity: 1;
}

/* JWT解析工具特定样式 */
.jwt-tool .tool-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 1px solid var(--border-color);
}

.jwt-result {
    margin-top: 20px;
}

.jwt-result h4 {
    margin-bottom: 10px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 600;
}

.jwt-result pre {
    background: var(--bg-color);
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 12px;
    line-height: 1.5;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.jwt-result code {
    background: var(--bg-color);
    padding: 15px;
    border-radius: 8px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 12px;
    display: block;
    word-break: break-all;
    border: 1px solid var(--border-color);
}

.jwt-header-section pre {
    border-left: 4px solid var(--primary-color);
}

.jwt-payload-section pre {
    border-left: 4px solid var(--success-color);
}

.jwt-signature-section code {
    border-left: 4px solid var(--warning-color);
}

.jwt-validation {
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
    font-size: 14px;
}

.jwt-validation.valid {
    background: #d1fae5;
    color: #059669;
    border: 1px solid #059669;
}

.jwt-validation.invalid {
    background: #fee2e2;
    color: #dc2626;
    border: 1px solid #dc2626;
}

.jwt-validation.info {
    background: #dbeafe;
    color: #2563eb;
    border: 1px solid #2563eb;
}

/* 颜色转换工具特定样式 */
.color-inputs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.color-input-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.color-input-wrapper {
    display: flex;
    gap: 10px;
    align-items: center;
}

.color-input-wrapper input[type="text"] {
    flex: 1;
    height: 44px;
    padding: 0 14px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 15px;
    font-family: 'Monaco', 'Consolas', monospace;
    background: var(--bg-color);
    color: var(--text-primary);
    transition: var(--transition);
}

.color-input-wrapper input[type="color"] {
    width: 56px;
    height: 44px;
    padding: 4px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-color);
    cursor: pointer;
    transition: var(--transition);
}

.color-rgb-inputs,
.color-hsl-inputs,
.color-hsv-inputs {
    display: flex;
    gap: 8px;
    align-items: center;
}

.color-rgb-inputs span,
.color-hsl-inputs span,
.color-hsv-inputs span {
    color: var(--text-secondary);
    font-size: 13px;
}

.color-rgb-inputs input,
.color-hsl-inputs input,
.color-hsv-inputs input {
    flex: 1;
    min-width: 0;
    height: 44px;
    padding: 0 12px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 15px;
    text-align: center;
    background: var(--bg-color);
    color: var(--text-primary);
    transition: var(--transition);
}

.color-input-wrapper input[type="text"]:focus,
.color-rgb-inputs input:focus,
.color-hsl-inputs input:focus,
.color-hsv-inputs input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.color-preview {
    margin: 20px 0;
    text-align: center;
}

.color-preview-box {
    width: 100%;
    height: 100px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.color-formats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.format-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.format-group label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

.format-group input {
    height: 42px;
    padding: 0 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 13px;
    background: var(--code-bg, var(--bg-color));
    color: var(--text-primary);
}

/* 单位换算工具特定样式 */
.unit-converter {
    background: var(--bg-color);
    padding: 20px;
    border-radius: 12px;
}

.unit-input-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.unit-input-wrapper {
    display: flex;
    flex: 1;
    gap: 10px;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
}

.unit-input-wrapper input[type="number"] {
    flex: 1;
    padding: 10px;
    border: none;
    font-size: 14px;
    background: transparent;
    color: var(--text-primary);
}

.unit-input-wrapper input[type="number"]:focus {
    outline: none;
}

.unit-input-wrapper select {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    background: var(--bg-color);
    color: var(--text-primary);
    cursor: pointer;
}

.unit-swap {
    padding: 12px;
    border: none;
    background: var(--primary-color);
    color: white;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.unit-swap:hover {
    background: #1d4ed8;
}

.unit-category {
    display: flex;
    gap: 5px;
    margin-left: 20px;
}

.unit-category-btn {
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: var(--transition);
    color: var(--text-primary);
}

.unit-category-btn:hover {
    background: var(--border-color);
}

.unit-category-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* 正则测试工具特定样式 */
.regex-input-section {
    margin-bottom: 20px;
}

.regex-input-group {
    display: flex;
    gap: 15px;
    align-items: center;
}

.regex-input-group label {
    font-weight: 600;
    color: var(--text-primary);
    min-width: 100px;
}

.regex-input-group input[type="text"] {
    flex: 1;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 14px;
    background: var(--bg-color);
    color: var(--text-primary);
}

.regex-options {
    display: flex;
    gap: 8px;
    align-items: center;
}

.regex-options label {
    font-size: 14px;
    color: var(--text-secondary);
}

.regex-options select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    background: var(--bg-color);
    color: var(--text-primary);
    cursor: pointer;
}

.regex-test-section {
    display: grid;
    gap: 20px;
}

.test-input-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.test-input-group textarea {
    width: 100%;
    min-height: 120px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 14px;
    resize: vertical;
    background: var(--bg-color);
    color: var(--text-primary);
}

.regex-result-content {
    background: var(--bg-color);
    padding: 15px;
    border-radius: 8px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 13px;
    line-height: 1.5;
    min-height: 120px;
    border: 1px solid var(--border-color);
}

.regex-match {
    background: #10b981;
    color: white;
    padding: 1px 2px;
    border-radius: 3px;
}

.match-info {
    padding: 10px 15px;
    border-radius: 8px;
    font-size: 14px;
    margin-top: 10px;
}

.match-info.success {
    background: #d1fae5;
    color: #059669;
    border: 1px solid #059669;
}

.match-info.error {
    background: #fee2e2;
    color: #dc2626;
    border: 1px solid #dc2626;
}

.regex-presets {
    display: flex;
    gap: 8px;
    align-items: center;
}

.regex-presets label {
    font-size: 14px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.regex-presets select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    background: var(--bg-color);
    color: var(--text-primary);
    cursor: pointer;
    min-width: 120px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .nav-left {
        flex: 0 0 240px;
    }

    .sidebar {
        width: 240px;
    }

    .right-sidebar {
        width: 200px;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 0 20px;
    }

    .nav-left,
    .nav-right {
        flex: 0 0 auto;
    }

    .nav-center {
        display: none;
    }

    .sidebar {
        position: fixed;
        left: -280px;
        height: calc(100vh - 70px);
        z-index: 999;
    }

    .sidebar.open {
        left: 0;
    }

    .content-area {
        padding: 20px;
    }

    .right-sidebar {
        display: none;
    }

    .timestamp-inputs {
        grid-template-columns: 1fr;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ============ 新增工具通用样式 ============ */
/* 统一新增面板的 pre 输出 */
#loremOutput,
#mockOutput,
#sqlOutput,
#uuidOutput,
#csrfOutput,
#caseOutput,
#escapeOutput,
#gradOutput,
#curlOutput,
#oauthOutput {
    background: var(--bg-color);
    padding: 18px;
    border-radius: 12px;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 13px;
    line-height: 1.5;
    min-height: 120px;
    color: var(--text-primary);
}

.tool-hint {
    font-size: 13px;
    color: var(--text-secondary);
    margin: 12px 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.loading {
    color: var(--text-secondary);
    padding: 12px;
}

.kv {
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 13px;
    padding: 4px 0;
    color: var(--text-primary);
    word-break: break-all;
}

.kv span {
    color: var(--primary-color);
    font-weight: 600;
}

.result-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 8px;
    margin-bottom: 12px;
    font-weight: 600;
}

.result-status.success {
    background: rgba(16, 185, 129, 0.12);
    color: var(--success-color);
}

.result-status.error {
    background: rgba(239, 68, 68, 0.12);
    color: var(--danger-color);
}

/* 哈希计算 */
.hash-results {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 25px;
}

.hash-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.hash-label {
    flex: 0 0 80px;
    font-weight: 600;
    color: var(--primary-color);
}

.hash-value {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 13px;
    background: var(--bg-color);
    color: var(--text-primary);
}

/* 密码强度条 */
.strength-bar {
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
    margin-top: 8px;
}

.strength-fill {
    height: 100%;
    transition: var(--transition);
}

.strength-fill.weak {
    width: 33%;
    background: var(--danger-color);
}

.strength-fill.medium {
    width: 66%;
    background: var(--warning-color);
}

.strength-fill.strong {
    width: 100%;
    background: var(--success-color);
}

.strength-label {
    font-weight: 600;
}

/* 随机文本 / UUID / CSRF 选项行 */
.lorem-options,
.uuid-options,
.csrf-options,
.gradient-options {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 16px;
    background: var(--bg-color);
    padding: 18px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.lorem-options .option-group,
.uuid-options .option-group,
.csrf-options .option-group,
.gradient-options .option-group {
    margin-bottom: 0;
}

.lorem-options input[type="number"],
.uuid-options input[type="number"],
.csrf-options input[type="number"],
.gradient-options input[type="number"],
.lorem-options select,
.csrf-options select,
.gradient-options select {
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--card-bg);
    color: var(--text-primary);
}

.lorem-checkbox,
.uuid-checkbox,
.oauth-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

/* Mock数据 */
.mock-config {
    background: var(--bg-color);
    padding: 18px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.mock-fields {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 15px;
}

.mock-field {
    display: flex;
    gap: 10px;
    align-items: center;
}

.mock-field-name,
.mock-field-type {
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--card-bg);
    color: var(--text-primary);
}

.mock-field-name {
    flex: 1;
}

.mock-field-remove {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: 8px;
    background: rgba(239, 68, 68, 0.12);
    color: var(--danger-color);
    cursor: pointer;
    transition: var(--transition);
}

.mock-field-remove:hover {
    background: var(--danger-color);
    color: white;
}

/* 证书 / CORS 结果区 */
.cert-result,
.cors-result {
    background: var(--bg-color);
    padding: 18px;
    border-radius: 12px;
    min-height: 100px;
}

.cert-result h4,
.cors-result h4,
.http-response h4 {
    margin: 14px 0 8px;
    color: var(--text-primary);
}

/* CORS 配置行 */
.cors-config {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.cors-config .option-group {
    margin-bottom: 0;
}

.cors-url-group {
    flex: 1;
    min-width: 240px;
}

.cors-config input,
.cors-config select {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-primary);
    width: 100%;
}

/* 字数统计卡片 */
.wordcount-results {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
    margin-top: 25px;
}

.wc-card {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 18px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.wc-num {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
}

.wc-label {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 大小写转换按钮组 */
.case-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 18px 0;
}

/* 转义动作 */
.escape-actions {
    display: flex;
    gap: 10px;
    margin: 18px 0;
}

/* 取色器 */
.cp-canvas-wrapper {
    text-align: center;
    margin-bottom: 18px;
}

#cpCanvas {
    max-width: 100%;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: crosshair;
}

.cp-result {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.cp-swatch {
    width: 80px;
    height: 80px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
}

.cp-values {
    display: flex;
    gap: 16px;
    flex: 1;
    flex-wrap: wrap;
}

/* 渐变生成 */
.gradient-stops {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 14px;
}

.grad-stop {
    display: flex;
    align-items: center;
    gap: 12px;
}

.grad-stop input[type="color"] {
    width: 44px;
    height: 36px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: none;
    cursor: pointer;
}

.grad-stop input[type="range"] {
    flex: 1;
}

.grad-pos-val {
    flex: 0 0 48px;
    text-align: right;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 13px;
}

.grad-remove {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 8px;
    background: rgba(239, 68, 68, 0.12);
    color: var(--danger-color);
    cursor: pointer;
}

.grad-remove:hover {
    background: var(--danger-color);
    color: white;
}

.gradient-preview {
    height: 160px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin: 18px 0;
}

/* Favicon结果 */
.favicon-result {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    margin-top: 20px;
}

.favicon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    min-width: 100px;
}

.favicon-item img {
    image-rendering: pixelated;
}

.favicon-item span {
    font-size: 12px;
    color: var(--text-secondary);
}

.favicon-item .download-btn {
    margin-top: 0;
    padding: 6px 12px;
    font-size: 13px;
}

/* HTTP / Webhook */
.http-request-line {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.http-request-line select {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-primary);
}

.http-request-line input {
    flex: 1;
    min-width: 220px;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-primary);
}

.http-fields {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.http-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.http-field label {
    font-weight: 600;
    font-size: 14px;
}

.http-field input,
.http-field textarea,
.oauth-fields input,
.oauth-fields select {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 13px;
    resize: vertical;
}

.http-response {
    background: var(--bg-color);
    padding: 18px;
    border-radius: 12px;
    min-height: 100px;
}

.http-status {
    font-weight: 700;
    padding: 8px 12px;
    border-radius: 8px;
    display: inline-block;
    margin-bottom: 10px;
}

.http-status.success {
    background: rgba(16, 185, 129, 0.12);
    color: var(--success-color);
}

.http-status.error {
    background: rgba(239, 68, 68, 0.12);
    color: var(--danger-color);
}

.http-body {
    background: var(--card-bg);
    padding: 14px;
    border-radius: 8px;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 13px;
    color: var(--text-primary);
    max-height: 400px;
}

/* OAuth / Webhook 动作 */
.oauth-fields {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 16px;
}

.oauth-actions,
.webhook-actions {
    display: flex;
    gap: 10px;
    margin: 16px 0;
    flex-wrap: wrap;
}

/* 加密解密输出 */
#encryptOutput {
    width: 100%;
    min-height: 120px;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 13px;
    resize: vertical;
    margin-top: 15px;
}

.key-section {
    margin-bottom: 16px;
}

.key-section label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
}

.key-section input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-primary);
}

.button-group {
    display: flex;
    gap: 10px;
    margin-top: 15px;
    flex-wrap: wrap;
}

/* 图片Base64输出 */
#base64imgOutput {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: 12px;
    resize: vertical;
    margin-bottom: 10px;
}

/* 二维码容器(qrcodejs 渲染为 img) */
#qrCanvas {
    display: inline-block;
    margin: 0 auto;
}

#qrCanvas img,
#qrCanvas canvas {
    margin: 0 auto;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

/* 上传拖拽高亮 */
.upload-area.dragover {
    border-color: var(--primary-color);
    background: var(--bg-color);
}

/* ================= 顶部搜索下拉 ================= */
.search-results {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    overflow: hidden auto;
    max-height: 380px;
    z-index: 1200;
    display: none;
}

.search-results.show {
    display: block;
}

.search-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    cursor: pointer;
    transition: var(--transition);
}

.search-item:hover,
.search-item.active {
    background: var(--bg-color);
}

.search-item > i {
    width: 20px;
    text-align: center;
    color: var(--primary-color);
    flex-shrink: 0;
}

.search-item-name {
    flex: 1;
    color: var(--text-primary);
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-item-cat {
    font-size: 12px;
    color: var(--text-secondary);
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 2px 10px;
    flex-shrink: 0;
}

.search-item.active .search-item-cat {
    background: var(--card-bg);
}

.search-empty {
    padding: 18px 16px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
}

/* ================= 页脚 ================= */
.site-footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 30px 24px;
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
    gap: 32px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 14px;
}

.footer-brand i {
    color: var(--primary-color);
}

.footer-about p {
    font-size: 13px;
    line-height: 1.8;
    max-width: 360px;
}

.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-col li,
.footer-col a {
    font-size: 13px;
    color: var(--text-secondary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--primary-color);
}

.footer-col li i {
    width: 16px;
    text-align: center;
}

.seo-content {
    border-top: 1px solid var(--border-color);
    padding: 28px 30px;
    max-width: 1100px;
    margin: 0 auto;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.8;
}

.seo-content h2 {
    font-size: 18px;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.seo-content h3 {
    font-size: 15px;
    color: var(--text-primary);
    margin: 20px 0 10px;
}

.seo-content h4 {
    font-size: 14px;
    color: var(--text-primary);
    margin: 12px 0 4px;
}

.seo-content p {
    margin-bottom: 8px;
}

.seo-tool-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 6px 24px;
}

.seo-tool-list li {
    padding-left: 16px;
    position: relative;
}

.seo-tool-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 12px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--primary-color);
}

.seo-content strong {
    color: var(--text-primary);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 16px 30px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 8px 24px;
    font-size: 12px;
    color: var(--text-secondary);
}

.footer-beian {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 18px;
    align-items: center;
}

.footer-beian a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-beian a:hover {
    color: var(--primary-color);
}

@media (max-width: 992px) {
    .footer-inner {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 576px) {
    .footer-inner {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}