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

:root {
    --bg-surface: #f5f7fb;
    --bg-card: rgba(255, 255, 255, 0.92);
    --bg-card-light: rgba(255, 255, 255, 0.8);
    --bg-card-hover: rgba(255, 255, 255, 0.98);
    --border-color: rgba(15, 23, 42, 0.08);
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-muted: #6b7280;
    --accent-blue: #2563eb;
    --accent-blue-strong: #1d4ed8;
    --accent-teal: #0ea5e9;
    --accent-purple: #6366f1;
    --accent-green: #10b981;
    --accent-orange: #f97316;
    --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.08);
    --shadow-card: 0 10px 30px rgba(15, 23, 42, 0.06);
    --shadow-hover: 0 20px 40px rgba(15, 23, 42, 0.12);
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.25rem;
    --spacing-xl: 3rem;
    --max-width: 1400px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-surface);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-sm);
    position: relative;
    overflow-x: hidden;
}

/* 固定设置按钮 */
.btn-settings-fixed {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 44px;
    height: 44px;
    background: #00000000;
    color: var(--text-secondary);
    /* border: 1px solid var(--border-color); */
    border: 0px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    /* box-shadow: var(--shadow-card); */
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-settings-fixed:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-hover);
}

.btn-settings-fixed .settings-icon {
    width: 20px;
    height: 20px;
}

/* 侧边栏样式 */
.sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    width: 180px;
    height: 100vh;
    background: #ffffff33;
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-color);
    z-index: 999;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-soft);
}

.sidebar.open {
    transform: translateX(280px);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.2);
}

.sidebar-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.sidebar-toggle {
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    color: var(--text-secondary);
}

.sidebar-toggle:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-primary);
}

.sidebar-icon {
    width: 18px;
    height: 18px;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm);
}

.sidebar-filters {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

/* 侧边栏分类按钮 */
.sidebar-filters .category-btn {
    width: 100%;
    /* padding: var(--spacing-sm) var(--spacing-md); */
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    text-align: left;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.sidebar-filters .category-btn:hover {
    background: var(--bg-card-light);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.sidebar-filters .category-btn.active {
    background: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
}

.sidebar-filters .category-btn .category-icon {
    font-size: 1.1rem;
}

/* 布局模式样式 */
.layout-top .sidebar {
    display: none;
}

.layout-top .sidebar-overlay {
    display: none;
}

.layout-sidebar .category-filters {
    display: none;
}

.layout-sidebar .content-section {
    margin-left: 0;
    padding-left: var(--spacing-md);
}

.layout-sidebar .app-shell {
    padding-left: 0;
}

/* 桌面端侧边栏样式 */
@media (min-width: 1024px) {
    .layout-sidebar .sidebar {
        left: 0;
        transform: none;
        box-shadow: none;
        z-index: 10;
    }

    .layout-sidebar .sidebar-overlay {
        display: none;
    }

    .layout-sidebar .sidebar-toggle {
        display: none;
    }

    .layout-sidebar .content-section {
        margin-left: 160px;
        padding-left: var(--spacing-lg);
    }

    .layout-sidebar .app-shell {
        padding-left: 0;
    }
}

/* 移动端适配 */
@media (max-width: 1023px) {
    .sidebar {
        width: 280px;
        left: -280px;
    }

    .sidebar.open {
        transform: translateX(280px);
    }

    .layout-sidebar .content-section {
        margin-left: 0;
        padding-left: var(--spacing-md);
    }
}

/* 侧边栏遮罩层 */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.3);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* 渐变背景 - 参考 tools-hash */
.gradient-background {
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at 15% 20%, rgba(37, 99, 235, 0.18) 0, transparent 42%),
                radial-gradient(circle at 85% 25%, rgba(14, 165, 233, 0.15) 0, transparent 48%),
                radial-gradient(circle at 50% 75%, rgba(99, 102, 241, 0.18) 0, transparent 55%),
                linear-gradient(160deg, #ffffff 0%, #f3f4f6 100%);
    z-index: 0;
    pointer-events: none;
}

/* 背景渐变风格 */
.gradient-background.ocean {
    background: radial-gradient(circle at 15% 20%, rgba(37, 99, 235, 0.18) 0, transparent 42%),
                radial-gradient(circle at 85% 25%, rgba(14, 165, 233, 0.15) 0, transparent 48%),
                radial-gradient(circle at 50% 75%, rgba(99, 102, 241, 0.18) 0, transparent 55%),
                linear-gradient(160deg, #ffffff 0%, #f3f4f6 100%);
}

.gradient-background.sunset {
    background: radial-gradient(circle at 25% 15%, rgba(251, 146, 60, 0.2) 0, transparent 45%),
                radial-gradient(circle at 75% 30%, rgba(239, 68, 68, 0.15) 0, transparent 50%),
                radial-gradient(circle at 45% 80%, rgba(245, 158, 11, 0.18) 0, transparent 52%),
                linear-gradient(135deg, #fff7ed 0%, #fed7aa 100%);
}

.gradient-background.forest {
    background: radial-gradient(circle at 20% 25%, rgba(16, 185, 129, 0.18) 0, transparent 40%),
                radial-gradient(circle at 80% 20%, rgba(34, 197, 94, 0.15) 0, transparent 45%),
                radial-gradient(circle at 55% 70%, rgba(5, 150, 105, 0.16) 0, transparent 50%),
                linear-gradient(145deg, #f0fdf4 0%, #dcfce7 100%);
}

.gradient-background.purple {
    background: radial-gradient(circle at 30% 18%, rgba(139, 92, 246, 0.2) 0, transparent 43%),
                radial-gradient(circle at 70% 35%, rgba(168, 85, 247, 0.16) 0, transparent 48%),
                radial-gradient(circle at 40% 75%, rgba(99, 102, 241, 0.18) 0, transparent 53%),
                linear-gradient(150deg, #faf5ff 0%, #e9d5ff 100%);
}

.gradient-background.monochrome {
    background: radial-gradient(circle at 15% 20%, rgba(75, 85, 99, 0.12) 0, transparent 42%),
                radial-gradient(circle at 85% 25%, rgba(107, 114, 128, 0.1) 0, transparent 48%),
                radial-gradient(circle at 50% 75%, rgba(55, 65, 81, 0.14) 0, transparent 55%),
                linear-gradient(160deg, #ffffff 0%, #f9fafb 100%);
}

.app-shell {
    width: 100%;
    max-width: var(--max-width);
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* 头部样式 */
.header {
    text-align: center;
    padding-top: 2rem;
    padding-bottom: var(--spacing-sm);
}

.title {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: 2.8rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-xs);
}

.title-icon {
    width: 56px;
    height: 56px;
    filter: drop-shadow(0 10px 24px rgba(37, 99, 235, 0.3));
}

.subtitle {
    color: rgba(75, 85, 99, 0.8);
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

/* 搜索区域 */
.search-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

/* 头部操作区域 */
.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.btn-settings {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(107, 114, 128, 0.08);
    color: var(--text-secondary);
    border: 1px solid rgba(107, 114, 128, 0.15);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0;
}

.btn-settings:hover {
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.2);
    color: var(--accent-blue);
    transform: translateY(-1px);
}

.settings-icon {
    width: 18px;
    height: 18px;
}

.search-container {
    position: relative;
    width: 100%;
    max-width: 500px;
}

.search-input {
    width: 100%;
    padding: 1rem 3.5rem 1rem 1.25rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    backdrop-filter: blur(18px);
    color: var(--text-primary);
    font-size: 1rem;
    line-height: 1.6;
    transition: all 0.25s ease;
    box-shadow: var(--shadow-card);
}

.search-input:focus {
    outline: none;
    border-color: rgba(37, 99, 235, 0.6);
    box-shadow: 0 0 0 0.22rem rgba(37, 99, 235, 0.12);
}

.search-input::placeholder {
    color: rgba(107, 114, 128, 0.6);
}

.search-btn {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.search-btn:hover {
    color: var(--accent-blue);
    background: rgba(37, 99, 235, 0.1);
}

.search-icon {
    width: 20px;
    height: 20px;
}

.btn-add-bookmark {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(107, 114, 128, 0.08);
    color: var(--text-secondary);
    border: 1px solid rgba(107, 114, 128, 0.15);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-add-bookmark:hover {
    background: rgba(37, 99, 235, 0.08);
    border-color: rgba(37, 99, 235, 0.2);
    color: var(--accent-blue);
    transform: translateY(-1px);
}

.add-icon {
    width: 16px;
    height: 16px;
}

/* 分类筛选 */
.category-filters {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
}

.category-btn {
    padding: 0.6rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.category-btn:hover {
    background: rgba(37, 99, 235, 0.08);
    color: var(--accent-blue);
}

.category-btn.active {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-blue-strong) 100%);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.18);
}

.category-btn.editable {
    position: relative;
    padding-right: 1.5rem;
}

.category-btn.editable .delete-category {
    position: absolute;
    top: 50%;
    right: 0.25rem;
    transform: translateY(-50%);
    background: rgba(220, 38, 38, 0.8);
    color: white;
    border: none;
    border-radius: 50%;
    width: 16px;
    height: 16px;
    font-size: 10px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.2s ease;
}

.category-btn.editable:hover .delete-category {
    display: flex;
    opacity: 1;
}

.btn-add-category {
    background: rgba(107, 114, 128, 0.1);
    color: var(--text-secondary);
    border: 1px dashed rgba(107, 114, 128, 0.3);
    min-width: auto;
    padding: 0.6rem 1rem;
}

.btn-add-category:hover {
    background: rgba(37, 99, 235, 0.1);
    border-color: rgba(37, 99, 235, 0.3);
    color: var(--accent-blue);
}

.category-btn.draggable {
    cursor: move;
}

.category-btn.draggable:active {
    cursor: grabbing;
}

.category-btn.dragging-category {
    opacity: 0.5;
    transform: scale(0.95);
}

.category-btn.drag-over-category {
    border: 2px dashed var(--accent-blue);
    background: rgba(37, 99, 235, 0.05);
}

.category-reorder-handle {
    position: absolute;
    left: 0.25rem;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 16px;
    cursor: grab;
    opacity: 0;
    transition: opacity 0.2s ease;
    color: var(--text-muted);
    font-size: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.category-btn.draggable:hover .category-reorder-handle {
    opacity: 0.6;
}

.category-btn.draggable:active .category-reorder-handle {
    cursor: grabbing;
}

/* 工具网格 */
.content-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
    width: 100%;
}

/* 工具卡片基础样式 */
.tool-card {
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    min-height: 108px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* 卡片样式变体 */
.tool-card.glass {
    background: var(--bg-card);
    backdrop-filter: blur(18px);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
}

.tool-card.glass:hover {
    transform: translateY(-4px);
    background: var(--bg-card-hover);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(37, 99, 235, 0.2);
}

.tool-card.solid {
    background: #ffffff;
    backdrop-filter: none;
    border: 2px solid rgba(15, 23, 42, 0.15);
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.12);
}

.tool-card.solid:hover {
    transform: translateY(-4px);
    background: #ffffff;
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.18);
    border-color: rgba(37, 99, 235, 0.4);
}

.tool-card.minimal {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: none;
    border: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: none;
    transform: none;
}

.tool-card.minimal:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.85);
    border-color: rgba(37, 99, 235, 0.2);
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
}

/* 默认样式（如果没有指定变体，使用glass样式） - 降低特异性 */
.tool-card {
    background: var(--bg-card);
    backdrop-filter: blur(18px);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
}

.tool-card:hover {
    transform: translateY(-4px);
    background: var(--bg-card-hover);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(37, 99, 235, 0.2);
}

/* 确保变体样式具有最高优先级 */
.tool-card.glass,
.tool-card.solid,
.tool-card.minimal {
    transform: none;
    transition: all 0.3s ease;
}

/* 强制覆盖基础样式 */
.tool-card.glass:hover,
.tool-card.solid:hover,
.tool-card.minimal:hover {
    /* 移除默认的hover效果，让变体样式生效 */
}

.tool-card.dragging {
    opacity: 0.5;
    transform: rotate(5deg);
    cursor: grabbing;
}

.tool-card.drag-over {
    border: 2px dashed var(--accent-blue);
    background: rgba(37, 99, 235, 0.05);
}

.tool-card.drag-handle {
    position: absolute;
    top: 0.3rem;
    left: 0.3rem;
    width: 20px;
    height: 20px;
    cursor: grab;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
    color: var(--text-muted);
    font-size: 12px;
}

.tool-card:hover .drag-handle {
    opacity: 0.6;
}

.tool-card.custom-bookmark .drag-handle {
    opacity: 1;
}

.tool-card.custom-bookmark .drag-handle:hover {
    opacity: 1;
    color: var(--accent-blue);
}

.tool-card.dragging .drag-handle {
    cursor: grabbing;
}

.tool-card.custom-bookmark {
    /* border-left: 4px solid var(--accent-green); */
}

.tool-card-content {
    display: flex;
    align-items: center;
    text-align: left;
    gap: 0.8rem;
    flex: 1;
    justify-content: center;
    min-height: 50px;
}

.tool-icon {
    width: 48px;
    height: 48px;
    /* background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-teal) 100%); */
    /* border-radius: var(--radius-md); */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: white;
    flex-shrink: 0;
    overflow: hidden;
    position: relative;
    /* box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2); */
}

.tool-logo-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: inherit;
    /* background: white; */
}

.tool-card.custom-bookmark .tool-icon {
    /* background: linear-gradient(135deg, var(--accent-green) 0%, var(--accent-teal) 100%); */
    /* box-shadow: 0 2px 8px rgba(16, 185, 129, 0.2); */
}

.tool-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.tool-name {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.375rem;
    line-height: 1.4;
}

.tool-description {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    opacity: 0.9;
}

.tool-category {
    position: absolute;
    top: 0rem;
    right: 0rem;
    display: inline-block;
    padding: 0.12rem 0.35rem;
    background: rgba(37, 99, 235, 0.08);
    color: var(--accent-blue);
    /* border-radius: 0.25rem; */
    font-size: 0.5rem;
    font-weight: 500;
    backdrop-filter: blur(6px);
    border: 1px solid rgba(37, 99, 235, 0.1);
    box-shadow: 0 1px 3px rgba(37, 99, 235, 0.08);
    opacity: 0.8;
    transition: all 0.2s ease;
}

.tool-card.custom-bookmark .tool-category {
    background: rgba(16, 185, 129, 0.08);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.1);
    box-shadow: 0 1px 3px rgba(16, 185, 129, 0.08);
}

.tool-card:hover .tool-category {
    opacity: 1;
    background: rgba(37, 99, 235, 0.12);
    border-color: rgba(37, 99, 235, 0.2);
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.15);
}

.tool-card:hover.custom-bookmark .tool-category {
    background: rgba(16, 185, 129, 0.12);
    border-color: rgba(16, 185, 129, 0.2);
    box-shadow: 0 2px 6px rgba(16, 185, 129, 0.15);
}

.tool-actions {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 10;
    display: flex;
    gap: 0.25rem;
}

.tool-card.editing .tool-actions {
    opacity: 1;
}


.btn-delete-bookmark {
    background: rgba(220, 38, 38, 0.9);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.3rem 0.6rem;
    font-size: 0.7rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-edit-bookmark {
    background: rgba(37, 99, 235, 0.9);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.3rem 0.6rem;
    font-size: 0.7rem;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-right: 0.25rem;
}

.btn-edit-bookmark:hover {
    background: rgba(37, 99, 235, 1);
    transform: scale(1.05);
}

.btn-delete-bookmark:hover {
    background: rgba(220, 38, 38, 1);
    transform: scale(1.05);
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.6;
}

.empty-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.empty-desc {
    font-size: 1rem;
    line-height: 1.6;
}

/* 模态框 */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--bg-card);
    backdrop-filter: blur(18px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 0;
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-soft);
}

/* 设置页面模态框 */
.settings-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.settings-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(6px);
}

.settings-content {
    position: relative;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 900px;
    max-height: 85vh;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
}

.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.02);
}

.settings-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.settings-title-icon {
    width: 28px;
    height: 28px;
    color: var(--accent-blue);
}

.settings-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.settings-close:hover {
    background: rgba(0, 0, 0, 0.1);
    color: var(--text-primary);
}

.settings-close svg {
    width: 24px;
    height: 24px;
}

/* 标签导航 */
.settings-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
}

.settings-tab {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    border-bottom: 3px solid transparent;
}

.settings-tab:hover {
    background: rgba(37, 99, 235, 0.05);
    color: var(--accent-blue);
}

.settings-tab.active {
    color: var(--accent-blue);
    border-bottom-color: var(--accent-blue);
    background: rgba(37, 99, 235, 0.08);
}

.tab-icon {
    width: 18px;
    height: 18px;
}

/* 设置内容区域 */
.settings-body {
    flex: 1;
    overflow-y: auto;
    padding: 0;
}

.settings-tab-content {
    display: none;
    padding: var(--spacing-lg);
}

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

.settings-section {
    max-width: 100%;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.section-header-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.section-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

/* 书签和分类列表 */
.bookmarks-list,
.categories-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.bookmark-item,
.category-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    gap: var(--spacing-md);
}

.bookmark-item:hover,
.category-item:hover {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(37, 99, 235, 0.2);
    transform: translateY(-1px);
}

.bookmark-icon,
.category-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-teal) 100%);
    flex-shrink: 0;
}

.bookmark-info,
.category-info {
    flex: 1;
    min-width: 0;
}

.bookmark-name,
.category-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.bookmark-url,
.category-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.bookmark-actions,
.category-actions {
    display: flex;
    gap: 0.5rem;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.bookmark-item:hover .bookmark-actions,
.category-item:hover .category-actions {
    opacity: 1;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-edit {
    background: rgba(37, 99, 235, 0.9);
    color: white;
}

.btn-edit:hover {
    background: var(--accent-blue);
    transform: scale(1.05);
}

.btn-delete {
    background: rgba(220, 38, 38, 0.9);
    color: white;
}

.btn-delete:hover {
    background: #dc2626;
    transform: scale(1.05);
}

.drag-handle {
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    cursor: grab;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
}

.drag-handle:hover {
    color: var(--accent-blue);
}

.drag-handle:active {
    cursor: grabbing;
}

/* 空状态 */
.empty-list {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-muted);
}

.empty-list-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.6;
}

.empty-list-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.empty-list-desc {
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 设置底部 */
.settings-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px);
}

.settings-footer-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* 表单帮助文本 */
.form-help {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .settings-modal {
        padding: var(--spacing-xs);
    }

    .settings-content {
        max-width: 100%;
        max-height: 95vh;
        margin: var(--spacing-xs);
    }

    .settings-header,
    .settings-tab-content {
        padding: var(--spacing-md);
    }

    .settings-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .settings-tab {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.85rem;
        white-space: nowrap;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .settings-footer {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: stretch;
    }

    .settings-footer-actions {
        justify-content: stretch;
    }

    .settings-footer-actions .btn {
        flex: 1;
    }

    .bookmark-item,
    .category-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .bookmark-actions,
    .category-actions {
        opacity: 1;
        align-self: flex-end;
        margin-top: var(--spacing-sm);
    }

    .bookmark-icon,
    .category-icon {
        width: 36px;
        height: 36px;
    }
}

@media (max-width: 520px) {
    .header-actions {
        gap: 0.5rem;
    }

    .btn-settings {
        width: 36px;
        height: 36px;
    }

    .settings-icon {
        width: 16px;
        height: 16px;
    }

    .settings-title {
        font-size: 1.3rem;
    }

    .settings-title-icon {
        width: 24px;
        height: 24px;
    }

    .tab-icon {
        width: 16px;
        height: 16px;
    }

    .settings-tab {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.8rem;
    }

    .section-title {
        font-size: 1.1rem;
    }

    .bookmark-name,
    .category-name {
        font-size: 1rem;
    }

    .bookmark-url,
    .category-desc {
        font-size: 0.8rem;
    }
}

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

.modal-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: rgba(0, 0, 0, 0.1);
    color: var(--text-primary);
}

.modal-close svg {
    width: 20px;
    height: 20px;
}

.bookmark-form {
    padding: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: #ffffff;
    color: var(--text-primary);
    font-size: 1rem;
    line-height: 1.6;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: rgba(37, 99, 235, 0.6);
    box-shadow: 0 0 0 0.18rem rgba(37, 99, 235, 0.12);
}

.form-textarea {
    resize: vertical;
    min-height: 80px;
}

.modal-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    margin-top: var(--spacing-lg);
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-blue-strong) 100%);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.18);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(37, 99, 235, 0.25);
}

.btn-secondary {
    background: rgba(107, 114, 128, 0.1);
    color: var(--text-secondary);
    border: 1px solid rgba(107, 114, 128, 0.2);
}

.btn-secondary:hover {
    background: rgba(107, 114, 128, 0.15);
    color: var(--text-primary);
}

/* 页脚 */
.footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    padding: var(--spacing-sm) 0;
    border-top: 1px solid var(--border-color);
}

/* 分类颜色 */
.category-text { background: linear-gradient(135deg, #3b82f6 0%, #0ea5e9 100%); }
.category-security { background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%); }
.category-image { background: linear-gradient(135deg, #10b981 0%, #14b8a6 100%); }
.category-calculation { background: linear-gradient(135deg, #f97316 0%, #ef4444 100%); }
.category-custom { background: linear-gradient(135deg, #64748b 0%, #475569 100%); }

/* 响应式设计 */
@media (max-width: 768px) {
    body {
        padding: var(--spacing-md) var(--spacing-xs);
    }

    .title {
        font-size: 2.2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .search-section {
        gap: var(--spacing-sm);
    }

    .category-filters {
        gap: 0.25rem;
        padding: 0.4rem;
    }

    .category-btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }

    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 0.75rem;
    }

    .modal {
        padding: var(--spacing-sm);
    }

    .modal-content {
        margin: var(--spacing-sm);
    }

    .modal-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}

@media (max-width: 520px) {
    .title {
        font-size: 2rem;
    }

    .title-icon {
        width: 48px;
        height: 48px;
    }

    .search-input {
        padding: 0.85rem 3rem 0.85rem 1rem;
        font-size: 0.95rem;
    }

    .tool-card {
        padding: 0.625rem 0.75rem;
        min-height: 100px;
    }

    .tool-card-content {
        gap: 0.5rem;
        min-height: 35px;
        align-items: center;
    }

    .tool-icon {
        width: 36px;
        height: 36px;
        font-size: 1.1rem;
        /* border-radius: var(--radius-md); */
        /* box-shadow: 0 2px 6px rgba(37, 99, 235, 0.15); */
    }

    .tool-card.custom-bookmark .tool-icon {
        box-shadow: 0 2px 8px rgba(16, 185, 129, 0.2);
    }

    .tool-name {
        font-size: 1.05rem;
        margin-bottom: 0.25rem;
    }

    .tool-description {
        font-size: 0.73rem;
        line-height: 1.35;
    }

    .tool-category {
        top: 0.375rem;
        right: 0.375rem;
        padding: 0.1rem 0.3rem;
        font-size: 0.45rem;
    }

    .tool-actions {
        top: 0.375rem;
        right: 0.375rem;
    }
}

/* 加载动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tool-card {
    animation: fadeIn 0.5s ease forwards;
}

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

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(107, 114, 128, 0.4);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(107, 114, 128, 0.6);
}

/* 进度指示器和状态消息 */
.progress-container {
    margin: var(--spacing-md) 0;
    padding: var(--spacing-md);
    background: rgba(37, 99, 235, 0.05);
    border: 1px solid rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-md);
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(107, 114, 128, 0.2);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-teal));
    border-radius: 3px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-xs);
}

.sync-status {
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-top: var(--spacing-sm);
}

.sync-status.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--accent-green);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.sync-status.error {
    background: rgba(220, 38, 38, 0.1);
    color: #dc2626;
    border: 1px solid rgba(220, 38, 38, 0.2);
}

.sync-status.info {
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent-blue);
    border: 1px solid rgba(37, 99, 235, 0.2);
}

/* 外观设置选项样式 */
/* 布局设置选项 */
.layout-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-sm);
}

.layout-option {
    position: relative;
}

.layout-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.layout-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--bg-card);
}

.layout-label:hover {
    border-color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}

.layout-option input[type="radio"]:checked + .layout-label {
    border-color: var(--accent-blue);
    background: rgba(37, 99, 235, 0.05);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.layout-preview {
    width: 120px;
    height: 80px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-sm);
    position: relative;
    background: white;
    overflow: hidden;
}

/* 顶部布局预览 */
.layout-preview-header {
    height: 25px;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 2px 4px;
}

.layout-preview-title {
    font-size: 6px;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 2px;
}

.layout-preview-categories {
    display: flex;
    gap: 2px;
}

.layout-preview-category {
    width: 12px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 1px;
}

.layout-preview-category.active {
    background: var(--accent-blue);
}

.layout-preview-content {
    height: 55px;
    padding: 4px;
}

.layout-preview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3px;
    height: 100%;
}

.layout-preview-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 2px;
}

/* 侧边栏布局预览 */
.layout-preview-sidebar {
    width: 30px;
    height: 100%;
    background: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    padding: 2px;
    display: flex;
    flex-direction: column;
}

.layout-preview-sidebar-title {
    font-size: 4px;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 4px;
    text-align: center;
}

.layout-preview-sidebar-categories {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.layout-preview-sidebar-category {
    width: 100%;
    height: 8px;
    background: var(--text-muted);
    border-radius: 1px;
}

.layout-preview-sidebar-category.active {
    background: var(--accent-blue);
}

.layout-preview-main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.layout-preview-main .layout-preview-header {
    height: 15px;
    border-bottom: 1px solid var(--border-color);
    padding: 2px 4px;
}

.layout-preview-main .layout-preview-title {
    font-size: 6px;
    margin-bottom: 0;
}

.layout-preview-main .layout-preview-content {
    height: calc(100% - 15px);
    padding: 3px;
}

.layout-preview-main .layout-preview-grid {
    gap: 2px;
}

.option-info {
    text-align: center;
}

.option-info .option-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    display: block;
}

.option-info .option-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.3;
}

/* 外观设置选项 */
.appearance-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-sm);
}

.appearance-option {
    position: relative;
}

.appearance-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.appearance-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
}

.appearance-label:hover {
    border-color: rgba(37, 99, 235, 0.3);
    background: rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
}

.appearance-option input[type="radio"]:checked + .appearance-label {
    border-color: var(--accent-blue);
    background: rgba(37, 99, 235, 0.08);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
}

.option-preview {
    width: 60px;
    height: 40px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

/* 背景预览样式 */
.bg-preview-ocean {
    background: radial-gradient(circle at 30% 25%, rgba(37, 99, 235, 0.3) 0, transparent 50%),
                radial-gradient(circle at 70% 35%, rgba(14, 165, 233, 0.25) 0, transparent 55%),
                linear-gradient(135deg, #ffffff 0%, #f3f4f6 100%);
}

.bg-preview-sunset {
    background: radial-gradient(circle at 35% 20%, rgba(251, 146, 60, 0.35) 0, transparent 45%),
                radial-gradient(circle at 65% 40%, rgba(239, 68, 68, 0.3) 0, transparent 50%),
                linear-gradient(125deg, #fff7ed 0%, #fed7aa 100%);
}

.bg-preview-forest {
    background: radial-gradient(circle at 25% 30%, rgba(16, 185, 129, 0.35) 0, transparent 45%),
                radial-gradient(circle at 75% 25%, rgba(34, 197, 94, 0.3) 0, transparent 50%),
                linear-gradient(140deg, #f0fdf4 0%, #dcfce7 100%);
}

.bg-preview-purple {
    background: radial-gradient(circle at 40% 22%, rgba(139, 92, 246, 0.35) 0, transparent 48%),
                radial-gradient(circle at 60% 45%, rgba(168, 85, 247, 0.3) 0, transparent 52%),
                linear-gradient(145deg, #faf5ff 0%, #e9d5ff 100%);
}

.bg-preview-monochrome {
    background: radial-gradient(circle at 30% 25%, rgba(75, 85, 99, 0.25) 0, transparent 45%),
                radial-gradient(circle at 70% 35%, rgba(107, 114, 128, 0.2) 0, transparent 50%),
                linear-gradient(135deg, #ffffff 0%, #f9fafb 100%);
}

/* 卡片预览样式 */
.card-preview-glass,
.card-preview-solid,
.card-preview-minimal {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.mini-card {
    width: 35px;
    height: 22px;
    border-radius: 3px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    position: relative;
}

.card-preview-glass .mini-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(5px);
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.card-preview-solid .mini-card {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.12);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.card-preview-minimal .mini-card {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(0, 0, 0, 0.05);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.option-name {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.2;
}

.appearance-option input[type="radio"]:checked + .appearance-label .option-name {
    color: var(--accent-blue);
    font-weight: 600;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .section-header-actions {
        flex-direction: column;
        gap: var(--spacing-xs);
        align-items: stretch;
    }

    .section-header-actions .btn {
        font-size: 0.8rem;
        padding: 0.5rem var(--spacing-sm);
    }

    .appearance-options {
        grid-template-columns: repeat(auto-fit, minmax(85px, 1fr));
        gap: var(--spacing-sm);
    }

    .option-preview {
        width: 50px;
        height: 35px;
    }

    .mini-card {
        width: 30px;
        height: 18px;
    }

    .option-name {
        font-size: 0.7rem;
    }
}

@media (max-width: 520px) {
    .appearance-options {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xs);
    }

    .appearance-label {
        padding: var(--spacing-xs);
    }

    .option-preview {
        width: 45px;
        height: 30px;
    }

    .mini-card {
        width: 25px;
        height: 15px;
    }

    .option-name {
        font-size: 0.65rem;
    }
}