/* ========================================
   加载遮罩
   ======================================== */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-text {
    margin-top: var(--spacing-md);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ========================================
   CSS 变量定义
   ======================================== */
:root {
    /* 主色调 */
    --primary-hue: 250;
    --primary: hsl(var(--primary-hue), 100%, 65%);
    --primary-light: hsl(var(--primary-hue), 100%, 75%);
    --primary-dark: hsl(var(--primary-hue), 100%, 50%);

    /* 强调色 */
    --accent-1: hsl(340, 100%, 65%);
    --accent-2: hsl(180, 100%, 50%);
    --accent-3: hsl(45, 100%, 60%);

    /* 背景色 */
    --bg-primary: hsl(230, 25%, 8%);
    --bg-secondary: hsl(230, 25%, 12%);
    --bg-tertiary: hsl(230, 25%, 16%);

    /* 玻璃态 */
    --glass-bg: hsla(230, 30%, 15%, 0.6);
    --glass-border: hsla(0, 0%, 100%, 0.08);
    --glass-shadow: 0 8px 32px hsla(0, 0%, 0%, 0.3);

    /* 文字颜色 */
    --text-primary: hsl(0, 0%, 95%);
    --text-secondary: hsl(230, 15%, 70%);
    --text-tertiary: hsl(230, 15%, 50%);

    /* 间距 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* 动画 */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;

    /* 字体 */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* ========================================
   基础重置
   ======================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ========================================
   壁纸层
   ======================================== */
.wallpaper-layer {
    position: fixed;
    inset: 0;
    z-index: -2;
    display: none;
    overflow: hidden;
}

.wallpaper-layer.active {
    display: block;
}

.wallpaper-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.wallpaper-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
}

/* ========================================
   背景装饰
   ======================================== */
.bg-decoration {
    position: fixed;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
    z-index: -1;
}

.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.bg-orb-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent-1) 100%);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.bg-orb-2 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, var(--accent-2) 0%, var(--primary) 100%);
    bottom: -150px;
    left: -150px;
    animation-delay: -7s;
}

.bg-orb-3 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--accent-3) 0%, var(--accent-1) 100%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    25% {
        transform: translate(30px, -30px) scale(1.05);
    }

    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }

    75% {
        transform: translate(-30px, -20px) scale(1.02);
    }
}

/* ========================================
   容器
   ======================================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

/* ========================================
   头部
   ======================================== */
.header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.logo-icon {
    font-size: 3rem;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.logo-text {
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 50%, var(--accent-2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 300;
    margin-bottom: var(--spacing-xl);
}

/* ========================================
   网页搜索
   ======================================== */
.web-search-container {
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

.web-search-form {
    display: flex;
    gap: var(--spacing-sm);
    align-items: stretch;
}

.engine-selector {
    position: relative;
    flex-shrink: 0;
}

.engine-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-sm);
    height: 100%;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.engine-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary);
}

.engine-icon {
    font-size: 1.3rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
}

.engine-icon img {
    width: 22px;
    height: 22px;
    object-fit: contain;
}

/* 选择器按钮中隐藏名称，只显示图标 */
.engine-btn .engine-name {
    display: none;
}

.dropdown-arrow {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-normal);
}

.engine-selector.open .dropdown-arrow {
    transform: rotate(180deg);
}

.engine-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 180px;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    box-shadow: var(--glass-shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    z-index: 100;
    overflow: hidden;
}

.engine-selector.open .engine-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.engine-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.engine-option:hover {
    background: var(--bg-tertiary);
}

.engine-option.active {
    background: hsla(var(--primary-hue), 100%, 65%, 0.15);
    color: var(--primary-light);
}

.engine-option-icon {
    font-size: 1.1rem;
}

.engine-dropdown-divider {
    height: 1px;
    background: var(--glass-border);
    margin: var(--spacing-sm) 0;
}

.engine-manage-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--primary-light);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.engine-manage-btn svg {
    width: 16px;
    height: 16px;
}

.engine-manage-btn:hover {
    background: var(--bg-tertiary);
}

/* ========================================
   时钟组件
   ======================================== */
.header-title-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.clock-container {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding-left: var(--spacing-md);
    border-left: 2px solid var(--glass-border);
    margin: 0;
}

.clock-time {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 1px;
    font-variant-numeric: tabular-nums;
    line-height: 1.2;
}

.clock-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

@media (max-width: 768px) {
    .header-title-row {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .clock-container {
        border-left: none;
        border-top: 1px solid var(--glass-border);
        padding-left: 0;
        padding-top: var(--spacing-sm);
        align-items: center;
    }

    .clock-time {
        font-size: 1.2rem;
    }

    .clock-date {
        font-size: 0.75rem;
    }
}

/* ========================================
   模态框
   ======================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: hsla(0, 0%, 0%, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal-overlay.open {
    opacity: 1;
    visibility: visible;
}

/* 分类弹窗需要更高的 z-index 以覆盖设置弹窗 */
#categoryModal {
    z-index: 1100;
}

.modal {
    width: 90%;
    max-width: 500px;
    max-height: 85vh;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px hsla(0, 0%, 0%, 0.5);
    transform: translateY(20px) scale(0.95);
    transition: transform var(--transition-normal);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-overlay.open .modal {
    transform: translateY(0) scale(1);
}

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

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

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    flex: 1;
}

/* 搜索引擎列表 */
.engine-list {
    margin-bottom: var(--spacing-lg);
}

.engine-list-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    cursor: grab;
    transition: all var(--transition-fast);
}

.engine-list-item:active {
    cursor: grabbing;
}

.engine-list-item.dragging {
    opacity: 0.5;
    background: var(--accent-color-light);
}

.engine-list-item.builtin {
    opacity: 0.7;
}

.engine-drag-handle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    color: var(--text-tertiary);
    cursor: grab;
}

.engine-drag-handle svg {
    width: 16px;
    height: 16px;
}

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

.engine-default-badge {
    display: inline-block;
    font-size: 0.65rem;
    padding: 2px 6px;
    background: var(--accent-gradient);
    color: white;
    border-radius: var(--radius-sm);
    margin-left: 6px;
    vertical-align: middle;
}

.engine-list-icon {
    font-size: 1.5rem;
    width: 40px;
    text-align: center;
}

.engine-list-info {
    flex: 1;
    min-width: 0;
}

.engine-list-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.engine-list-url {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.engine-list-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.engine-action-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.engine-action-btn svg {
    width: 16px;
    height: 16px;
}

.engine-action-btn:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.engine-action-btn.delete:hover {
    background: hsla(0, 100%, 50%, 0.15);
    color: hsl(0, 100%, 65%);
}

/* 添加引擎表单 */
.add-engine-form {
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
}

.form-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

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

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.form-group input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    outline: none;
    transition: all var(--transition-normal);
}

.form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px hsla(var(--primary-hue), 100%, 65%, 0.15);
}

.form-group input::placeholder {
    color: var(--text-tertiary);
}

.form-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
}

.form-hint code {
    background: var(--bg-tertiary);
    padding: 1px 4px;
    border-radius: 3px;
}

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

/* 搜索引擎图标行 */
.engine-icon-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.engine-icon-preview {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 1.3rem;
    flex-shrink: 0;
}

.engine-icon-preview img {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.engine-icon-row input {
    flex: 1;
}

.engine-icon-inputs {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
}

.engine-icon-inputs input {
    width: 100%;
}

.engine-icon-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.engine-icon-library {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    max-height: 150px;
    overflow-y: auto;
}

/* 图标库网格 */
.icon-library-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
    gap: var(--spacing-xs);
    max-height: 120px;
    overflow-y: auto;
    padding: var(--spacing-xs);
}

.icon-library-item {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.icon-library-item:hover {
    border-color: var(--accent-color);
    transform: scale(1.1);
}

.icon-library-item.selected {
    border-color: var(--accent-color);
    background: var(--accent-color-light);
}

.icon-library-item img {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.icon-library-loading,
.icon-library-empty {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: var(--spacing-md);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.9rem;
    font-family: inherit;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn svg {
    width: 16px;
    height: 16px;
}

.btn-primary {
    color: white;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.btn-primary:hover {
    box-shadow: 0 4px 15px hsla(var(--primary-hue), 100%, 65%, 0.4);
    transform: translateY(-1px);
}

.btn-secondary {
    color: var(--text-secondary);
    background: var(--bg-tertiary);
}

.btn-secondary:hover {
    color: var(--text-primary);
    background: var(--bg-primary);
}

.web-search-box {
    flex: 1;
    display: flex;
    position: relative;
}

.web-search-input {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-xl);
    padding-right: 56px;
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    outline: none;
    transition: all var(--transition-normal);
}

.web-search-input::placeholder {
    color: var(--text-tertiary);
}

.web-search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px hsla(var(--primary-hue), 100%, 65%, 0.15);
}

.web-search-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.web-search-btn svg {
    width: 18px;
    height: 18px;
}

.web-search-btn:hover {
    transform: translateY(-50%) scale(1.05);
    box-shadow: 0 4px 15px hsla(var(--primary-hue), 100%, 65%, 0.4);
}

.web-search-btn:active {
    transform: translateY(-50%) scale(0.95);
}

/* ========================================
   搜索框
   ======================================== */
.search-container {
    max-width: 500px;
    margin: var(--spacing-lg) auto 0;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: var(--spacing-lg);
    width: 20px;
    height: 20px;
    color: var(--text-tertiary);
    transition: color var(--transition-normal);
}

.search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    padding-left: 52px;
    padding-right: 48px;
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    outline: none;
    transition: all var(--transition-normal);
}

.search-input::placeholder {
    color: var(--text-tertiary);
}

.search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px hsla(var(--primary-hue), 100%, 65%, 0.15);
}

.search-input:focus+.search-icon,
.search-input:focus~.search-icon {
    color: var(--primary);
}

.search-clear {
    position: absolute;
    right: var(--spacing-md);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-full);
    color: var(--text-tertiary);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.search-clear svg {
    width: 16px;
    height: 16px;
}

.search-clear:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.search-input:not(:placeholder-shown)~.search-clear {
    opacity: 1;
    visibility: visible;
}

/* ========================================
   分类导航
   ======================================== */
.category-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.category-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
    font-family: inherit;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-normal);
}

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

.category-btn:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.category-btn.active {
    color: var(--text-primary);
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 4px 15px hsla(var(--primary-hue), 100%, 65%, 0.3);
}

/* ========================================
   书签分类区域
   ======================================== */
.bookmarks-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2xl);
}

.category-section {
    animation: fadeInUp 0.5s ease forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.category-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--glass-border);
}

/* 折叠按钮 */
.collapse-btn {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
    flex-shrink: 0;
}

.collapse-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.collapse-btn svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-normal);
}

.category-section.collapsed .collapse-btn svg {
    transform: rotate(-90deg);
}

.category-section.collapsed .category-header {
    margin-bottom: 0;
    border-bottom-color: transparent;
}

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

.category-count {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-tertiary);
    background: var(--bg-tertiary);
    padding: 2px 10px;
    border-radius: var(--radius-full);
    margin-left: auto;
}

.category-header-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.header-action-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
    opacity: 0;
}

.category-section:hover .header-action-btn,
.header-action-btn.active {
    opacity: 1;
}

.header-action-btn:hover {
    background: var(--accent-primary);
    color: white;
    opacity: 1;
}

.header-action-btn.active {
    background: var(--accent-primary);
    color: white;
}

.header-action-btn svg {
    width: 16px;
    height: 16px;
}

.save-sort-btn {
    margin-bottom: var(--spacing-md);
    font-size: 0.85rem;
    padding: var(--spacing-xs) var(--spacing-md);
}

/* ========================================
   书签网格
   ======================================== */
.bookmarks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.bookmarks-grid.sorting-mode {
    border: 2px dashed var(--accent-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    background: rgba(139, 92, 246, 0.05);
}

.bookmarks-grid.sorting-mode .bookmark-card,
.bookmarks-grid.sorting-mode .component-card {
    cursor: grab;
}

.bookmarks-grid.sorting-mode .bookmark-card.dragging,
.bookmarks-grid.sorting-mode .component-card.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

/* ========================================
   书签卡片
   ======================================== */
.bookmark-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    text-decoration: none;
    color: var(--text-primary);
    transition: all var(--transition-normal);
    overflow: hidden;
}

.bookmark-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            hsla(var(--primary-hue), 100%, 65%, 0) 0%,
            hsla(var(--primary-hue), 100%, 65%, 0.1) 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.bookmark-card:hover {
    transform: translateY(-5px);
    border-color: hsla(var(--primary-hue), 100%, 65%, 0.3);
    box-shadow:
        0 10px 40px hsla(0, 0%, 0%, 0.3),
        0 0 30px hsla(var(--primary-hue), 100%, 65%, 0.1);
}

.bookmark-card:hover::before {
    opacity: 1;
}

.bookmark-icon {
    position: relative;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    font-size: 1.8rem;
    transition: all var(--transition-normal);
}

.bookmark-icon img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    border-radius: 4px;
}

.bookmark-card:hover .bookmark-icon {
    transform: scale(1.1);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    box-shadow: 0 5px 20px hsla(var(--primary-hue), 100%, 65%, 0.3);
}

.bookmark-info {
    text-align: center;
    position: relative;
    z-index: 1;
}

.bookmark-name {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 4px;
    transition: color var(--transition-fast);
}

.bookmark-card:hover .bookmark-name {
    color: var(--primary-light);
}

.bookmark-desc {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 搜索高亮 */
.highlight {
    background: linear-gradient(135deg, var(--accent-3), var(--accent-1));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

/* ========================================
   空状态
   ======================================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

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

.empty-hint {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-lg);
}

.empty-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   系统状态组件卡片
   ======================================== */
.component-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    min-width: 140px;
}

.component-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border-color: var(--accent-primary);
}

.component-card .bookmark-actions {
    position: absolute;
    top: 8px;
    right: 8px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.component-card:hover .bookmark-actions {
    opacity: 1;
}

.component-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.component-info {
    text-align: center;
    width: 100%;
}

.component-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.component-value {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.component-progress {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.component-progress-bar {
    height: 100%;
    background: var(--accent-primary);
    border-radius: 3px;
    transition: width 0.5s ease, background-color 0.3s ease;
}

/* ========================================
   页脚
   ======================================== */
.footer {
    text-align: center;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    color: var(--text-tertiary);
    font-size: 0.85rem;
}

/* ========================================
   分类列表拖拽排序
   ======================================== */
.category-list-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xs);
    transition: all var(--transition-fast);
    cursor: grab;
}

.category-list-item:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-primary);
}

.category-list-item.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

.drag-handle {
    color: var(--text-tertiary);
    font-size: 1.2rem;
    letter-spacing: -3px;
    cursor: grab;
    user-select: none;
    padding: 0 var(--spacing-xs);
}

.drag-handle:hover {
    color: var(--text-secondary);
}

.category-list-name {
    flex: 1;
    font-size: 0.95rem;
    color: var(--text-primary);
}

/* ========================================
   图标库
   ======================================== */
.icon-library-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

/* 设置面板中的图标库 - 更大的显示区域 */
#settingsIconLibraryGrid {
    max-height: 400px;
    overflow-y: auto;
    padding: var(--spacing-sm);
}

.icon-library-item {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.icon-library-item:hover {
    transform: scale(1.1);
    border-color: var(--accent-primary);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.icon-library-item img {
    width: 36px;
    height: 36px;
    object-fit: contain;
}

.icon-library-item.copied {
    background: var(--accent-gradient);
    border-color: var(--accent-primary);
}

.icon-library-item.copied::after {
    content: '✓';
    position: absolute;
    color: white;
    font-size: 1.5rem;
}

.icon-library-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-tertiary);
}

/* 图标库管理样式 */
.icon-upload-area {
    margin-bottom: var(--spacing-md);
}

.icon-upload-methods {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: center;
}

.upload-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.upload-method.url-method {
    flex: 1;
    min-width: 280px;
}

.upload-method.url-method input {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    background: var(--glass-bg);
    color: var(--text-primary);
    font-size: 0.9rem;
}

.upload-method.url-method input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.icon-library-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--glass-border);
}

.toolbar-left,
.toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.icon-count {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* 图标管理网格样式 */
.icon-library-manage .icon-library-item {
    position: relative;
}

.icon-library-manage .icon-library-item.uploaded {
    border-color: var(--accent-primary);
}

.icon-library-manage .icon-library-item.selected {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--accent-primary);
}

.icon-checkbox {
    position: absolute;
    top: 4px;
    left: 4px;
    width: 16px;
    height: 16px;
    cursor: pointer;
    z-index: 2;
    accent-color: var(--accent-primary);
}

.icon-delete-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 20px;
    height: 20px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(239, 68, 68, 0.9);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: 2;
}

.icon-delete-btn svg {
    width: 12px;
    height: 12px;
    color: white;
}

.icon-library-item:hover .icon-delete-btn {
    opacity: 1;
}

.icon-delete-btn:hover {
    background: rgba(220, 38, 38, 1);
}

/* 危险按钮样式 */
.btn-danger {
    background: rgba(239, 68, 68, 0.9);
    color: white;
    border: none;
}

.btn-danger:hover:not(:disabled) {
    background: rgba(220, 38, 38, 1);
}

.btn-danger:disabled {
    background: rgba(239, 68, 68, 0.4);
    cursor: not-allowed;
}

.btn-danger svg {
    width: 14px;
    height: 14px;
    margin-right: 4px;
}

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

    .header {
        padding: var(--spacing-xl) 0 var(--spacing-sm);
    }

    .logo {
        font-size: 1.8rem;
    }

    .logo-icon {
        font-size: 2.2rem;
    }

    .tagline {
        font-size: 1rem;
    }

    /* 移动端搜索表单保持同一行 */
    .web-search-form {
        flex-direction: row;
    }

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

    .category-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.85rem;
    }

    .bookmarks-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--spacing-sm);
    }

    .bookmark-card {
        padding: var(--spacing-md);
    }

    .bookmark-icon {
        width: 48px;
        height: 48px;
        font-size: 1.5rem;
    }

    .bookmark-icon img {
        width: 24px;
        height: 24px;
    }
}

@media (max-width: 480px) {
    .bookmarks-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 分类按钮 - 移动端保持显示文字 */
    .category-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.8rem;
    }

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

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

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

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
}

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

/* ========================================
   选中样式
   ======================================== */
::selection {
    background: hsla(var(--primary-hue), 100%, 65%, 0.3);
    color: var(--text-primary);
}

/* ========================================
   设置按钮
   ======================================== */
.footer {
    position: relative;
}

.settings-btn {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-normal);
}

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

.settings-btn:hover {
    color: var(--text-primary);
    border-color: var(--primary);
    background: var(--bg-tertiary);
}

/* 固定按钮组 - 右上角 */
.fixed-buttons {
    position: fixed;
    top: calc(20px + env(safe-area-inset-top));
    right: calc(20px + env(safe-area-inset-right));
    z-index: 1000;
    display: flex;
    gap: 10px;
}

.fixed-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: var(--text-tertiary);
    cursor: pointer;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: all var(--transition-normal);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.fixed-btn svg {
    width: 22px;
    height: 22px;
}

.fixed-btn:hover {
    color: var(--text-primary);
    border-color: var(--primary);
    background: var(--bg-tertiary);
}

.fixed-btn:last-child:hover {
    transform: rotate(45deg);
}

.fixed-btn:first-child:hover {
    transform: scale(1.05);
}

/* 书签搜索浮层 */
.bookmark-search-overlay {
    position: fixed;
    inset: 0;
    background: hsla(0, 0%, 0%, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1100;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.bookmark-search-overlay.open {
    opacity: 1;
    visibility: visible;
}

.bookmark-search-panel {
    width: 90%;
    max-width: 600px;
    max-height: 70vh;
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px hsla(0, 0%, 0%, 0.5);
    transform: translateY(-20px) scale(0.95);
    transition: transform var(--transition-normal);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.bookmark-search-overlay.open .bookmark-search-panel {
    transform: translateY(0) scale(1);
}

.bookmark-search-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--glass-border);
    background: var(--bg-tertiary);
}

.bookmark-search-header svg {
    width: 24px;
    height: 24px;
    color: var(--text-tertiary);
    flex-shrink: 0;
}

.bookmark-search-header input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.bookmark-search-header input::placeholder {
    color: var(--text-tertiary);
}

.bookmark-search-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.bookmark-search-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

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

.bookmark-search-results {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm);
}

.bookmark-search-results:empty::after {
    content: '输入关键词搜索书签...';
    display: block;
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-tertiary);
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: var(--text-primary);
    transition: background var(--transition-fast);
}

.search-result-item:hover {
    background: var(--bg-tertiary);
}

.search-result-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    flex-shrink: 0;
    font-size: 1.2rem;
}

.search-result-icon img {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.search-result-info {
    flex: 1;
    min-width: 0;
}

.search-result-name {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-result-desc {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-result-category {
    font-size: 0.75rem;
    color: var(--primary);
    background: var(--primary-muted);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.search-no-results {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-tertiary);
}

/* 设置提示文字 */
.setting-hint {
    display: block;
    margin-top: var(--spacing-xs);
    color: var(--text-tertiary);
    font-size: 0.8rem;
}

/* ========================================
   Modal 尺寸变体
   ======================================== */
.modal.modal-sm {
    max-width: 400px;
}

.modal.modal-lg {
    max-width: 600px;
}

.modal.modal-xl {
    max-width: 900px;
    max-height: 85vh;
}

/* ========================================
   设置弹窗 - 侧边栏布局
   ======================================== */
.settings-container {
    display: flex;
    min-height: 500px;
    max-height: 70vh;
}

.settings-sidebar {
    width: 180px;
    flex-shrink: 0;
    background: var(--bg-tertiary);
    border-right: 1px solid var(--glass-border);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.settings-tab {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9rem;
    font-family: inherit;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.settings-tab svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.settings-tab:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.settings-tab.active {
    color: var(--primary);
    background: hsla(var(--primary-hue), 100%, 65%, 0.15);
}

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

.settings-panel {
    display: none;
}

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

.panel-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.panel-actions {
    margin-bottom: var(--spacing-md);
}

/* 设置卡片 */
.setting-card {
    padding: var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.card-subtitle {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.setting-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    flex-wrap: nowrap;
}

.setting-row.checkbox-row {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-weight: 500;
}

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

.setting-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-left: 24px;
}

.setting-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.setting-label {
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
}

.setting-desc {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    white-space: nowrap;
}

.setting-select {
    min-width: 150px;
    max-width: 200px;
    flex-shrink: 0;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
}

.setting-input {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    min-width: 200px;
}

.setting-input-sm {
    min-width: 80px;
    width: 80px;
}

.setting-range {
    width: 120px;
}

/* 开关组件 */
.switch {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    transition: .3s;
    border-radius: 26px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 2px;
    bottom: 2px;
    background-color: white;
    transition: .3s;
    border-radius: 50%;
}

input:checked+.slider {
    background-color: var(--primary);
    border-color: var(--primary);
}

input:checked+.slider:before {
    transform: translateX(22px);
}

/* 信息框 */
.info-box {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: hsla(var(--primary-hue), 100%, 65%, 0.1);
    border: 1px solid hsla(var(--primary-hue), 100%, 65%, 0.3);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.info-box svg {
    width: 20px;
    height: 20px;
    color: var(--primary);
    flex-shrink: 0;
}

/* Docker 列表 */
.docker-list {
    margin-bottom: var(--spacing-md);
}

.docker-loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-tertiary);
}

.docker-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
}

.docker-item-info {
    flex: 1;
}

.docker-item-name {
    font-weight: 600;
    color: var(--text-primary);
}

.docker-item-image {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.docker-status {
    padding: 2px 10px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.docker-status.running {
    background: hsla(120, 100%, 40%, 0.15);
    color: hsl(120, 100%, 50%);
}

.docker-status.stopped {
    background: hsla(0, 100%, 50%, 0.15);
    color: hsl(0, 100%, 60%);
}

.docker-actions {
    display: flex;
    gap: var(--spacing-xs);
}

/* 关于页面 */
.about-card {
    text-align: center;
    padding: var(--spacing-xl);
}

.about-logo {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.about-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.about-version {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-md);
}

.about-desc {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.about-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.about-link {
    color: var(--primary);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.about-link:hover {
    opacity: 0.8;
}

/* ========================================
   书签卡片操作按钮
   ======================================== */
.bookmark-card {
    position: relative;
}

.bookmark-actions {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.bookmark-card:hover .bookmark-actions {
    opacity: 1;
}

.bookmark-action-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.bookmark-action-btn svg {
    width: 14px;
    height: 14px;
}

.bookmark-action-btn:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.bookmark-action-btn.delete:hover {
    color: hsl(0, 100%, 65%);
    background: hsla(0, 100%, 50%, 0.15);
}

/* ========================================
   添加书签按钮
   ======================================== */
.add-bookmark-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    min-height: 120px;
    background: transparent;
    border: 2px dashed var(--glass-border);
    border-radius: var(--radius-lg);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.add-bookmark-btn svg {
    width: 32px;
    height: 32px;
}

.add-bookmark-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: hsla(var(--primary-hue), 100%, 65%, 0.05);
}

/* ========================================
   图标选择器
   ======================================== */
.icon-selector {
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.icon-tabs {
    display: flex;
    background: var(--bg-tertiary);
}

.icon-tab {
    flex: 1;
    padding: var(--spacing-sm);
    font-size: 0.8rem;
    font-family: inherit;
    color: var(--text-tertiary);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.icon-tab:hover {
    color: var(--text-secondary);
}

.icon-tab.active {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.icon-content {
    padding: var(--spacing-md);
}

.icon-panel {
    display: none;
}

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

.icon-preview {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.icon-preview img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

/* 自动获取图标区域 */
.icon-hint {
    display: block;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-sm);
}

.icon-preview-auto {
    width: 100%;
    min-height: 56px;
    height: auto;
    display: flex;
    align-items: center;
    padding: var(--spacing-sm);
}

/* 多图标选择 */
.icon-selection {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 8px;
    overflow-x: auto;
    padding: 4px 0;
    width: 100%;
}

.icon-option {
    width: 40px;
    height: 40px;
    padding: 4px;
    object-fit: contain;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    background: var(--bg-tertiary);
}

.icon-option:hover {
    border-color: var(--text-tertiary);
}

.icon-option.selected {
    border-color: var(--primary);
    box-shadow: 0 0 10px hsla(var(--primary-hue), 100%, 65%, 0.3);
}

/* ========================================
   设置面板
   ======================================== */
.settings-section {
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

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

.settings-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--glass-border);
}

.settings-row:last-child {
    border-bottom: none;
}

.settings-info {
    flex: 1;
}

.settings-label {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.settings-desc {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

.webdav-status {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
    display: none;
}

.webdav-status.success {
    display: block;
    background: hsla(120, 100%, 40%, 0.15);
    color: hsl(120, 100%, 60%);
}

.webdav-status.error {
    display: block;
    background: hsla(0, 100%, 50%, 0.15);
    color: hsl(0, 100%, 65%);
}

/* ========================================
   分类列表（设置中）
   ======================================== */
.category-list {
    margin-bottom: var(--spacing-md);
}

.category-list-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-xs);
}

.category-list-item.builtin {
    opacity: 0.6;
}

.category-list-icon {
    font-size: 1.2rem;
}

.category-list-name {
    flex: 1;
    font-weight: 500;
}

.category-list-count {
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

/* ========================================
   Select 下拉框
   ======================================== */
select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    outline: none;
    cursor: pointer;
}

select:focus {
    border-color: var(--primary);
}

/* ========================================
   按钮尺寸
   ======================================== */
.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.8rem;
}

/* ========================================
   移动端响应式适配（放在文件末尾确保优先级）
   ======================================== */

/* 平板适配 (iPad等) */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        padding: var(--spacing-lg);
    }

    .bookmarks-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }

    .modal.modal-xl {
        max-width: 95%;
    }

    .settings-sidebar {
        width: 160px;
    }
}

/* 移动端主要适配 */
@media (max-width: 768px) {
    /* 设置弹窗全屏化 */
    .modal.modal-xl {
        width: 100% !important;
        max-width: 100% !important;
        max-height: 100vh !important;
        height: 100vh !important;
        margin: 0 !important;
        border-radius: 0 !important;
        /* 安全区域由 modal-header 处理 */
        padding-top: 0 !important;
        padding-bottom: env(safe-area-inset-bottom) !important;
    }

    /* 设置弹窗头部 - 增大关闭按钮 */
    .modal.modal-xl .modal-header {
        position: sticky !important;
        top: 0 !important;
        z-index: 10 !important;
        background: var(--bg-secondary) !important;
        padding: var(--spacing-md) !important;
        /* 使用 max() 确保至少有 65px 的顶部间距，兼容状态栏 */
        padding-top: max(65px, calc(var(--spacing-md) + env(safe-area-inset-top))) !important;
        border-bottom: 1px solid var(--glass-border) !important;
    }

    .modal.modal-xl .modal-close {
        width: 44px !important;
        height: 44px !important;
        background: var(--bg-tertiary) !important;
        border-radius: var(--radius-md) !important;
    }

    .modal.modal-xl .modal-close svg {
        width: 24px !important;
        height: 24px !important;
    }

    /* 设置面板改为垂直布局 */
    .settings-container {
        flex-direction: column !important;
        min-height: auto !important;
        max-height: calc(100vh - 60px - env(safe-area-inset-top) - env(safe-area-inset-bottom)) !important;
        height: calc(100vh - 60px - env(safe-area-inset-top) - env(safe-area-inset-bottom)) !important;
    }

    .settings-sidebar {
        width: 100% !important;
        height: auto !important;
        flex-direction: row !important;
        flex-shrink: 0 !important;
        overflow-x: auto !important;
        overflow-y: hidden !important;
        border-right: none !important;
        border-bottom: 1px solid var(--glass-border) !important;
        padding: var(--spacing-xs) !important;
        gap: 2px !important;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }

    .settings-sidebar::-webkit-scrollbar {
        height: 0 !important;
        display: none !important;
    }

    .settings-tab {
        flex-shrink: 0 !important;
        flex-direction: column !important;
        align-items: center !important;
        justify-content: center !important;
        padding: var(--spacing-xs) var(--spacing-sm) !important;
        gap: 2px !important;
        font-size: 0.65rem !important;
        min-width: 52px !important;
        text-align: center !important;
        white-space: nowrap !important;
    }

    .settings-tab svg {
        width: 18px !important;
        height: 18px !important;
    }

    .settings-tab span {
        display: block !important;
        max-width: 50px;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    /* 移动端隐藏 Docker 和图标库标签 */
    .settings-tab[data-tab="docker"],
    .settings-tab[data-tab="icons"],
    .settings-panel[data-panel="docker"],
    .settings-panel[data-panel="icons"] {
        display: none !important;
    }

    .settings-content {
        padding: var(--spacing-sm) !important;
        padding-bottom: calc(var(--spacing-xl) + 80px) !important; /* 额外底部间距，防止被浏览器工具栏遮挡 */
        flex: 1 !important;
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch;
    }

    /* 设置面板内容优化 */
    .panel-title {
        font-size: 1rem !important;
        margin-bottom: var(--spacing-md) !important;
    }

    .setting-card {
        padding: var(--spacing-sm) !important;
        margin-bottom: var(--spacing-sm) !important;
    }

    .card-subtitle {
        font-size: 0.85rem !important;
        margin-bottom: var(--spacing-sm) !important;
    }

    /* 设置行在小屏幕上垂直排列 */
    .setting-row {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: var(--spacing-xs) !important;
    }

    .setting-row .setting-info {
        width: 100% !important;
    }

    .setting-input,
    .setting-select {
        width: 100% !important;
    }

    /* WebDAV 设置优化 */
    .form-group {
        margin-bottom: var(--spacing-sm) !important;
    }

    .form-group input[type="url"],
    .form-group input[type="text"],
    .form-group input[type="password"] {
        width: 100% !important;
        padding: var(--spacing-sm) !important;
        font-size: 16px !important; /* 防止iOS缩放 */
    }

    /* 普通模态框适配 */
    .modal {
        width: 95% !important;
        max-height: 90vh !important;
        margin: auto !important;
    }

    .modal-body {
        padding: var(--spacing-md) !important;
    }

    .modal-header {
        padding: var(--spacing-md) !important;
    }

    /* 搜索引擎下拉菜单改为底部弹出 */
    .engine-dropdown {
        position: fixed !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        top: auto !important;
        max-height: 70vh !important;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
        padding-bottom: env(safe-area-inset-bottom, 20px) !important;
    }

    .engine-dropdown::before {
        display: none !important;
    }

    /* 分类折叠按钮增大触摸区域 */
    .collapse-btn {
        width: 40px !important;
        height: 40px !important;
        min-width: 40px !important;
    }

    .collapse-btn svg {
        width: 22px !important;
        height: 22px !important;
    }

    /* 分类标题操作按钮 - 移动端隐藏添加和排序按钮 */
    .header-action-btn {
        display: none !important;
    }

    /* 书签操作按钮 - 移动端隐藏 */
    .bookmark-actions {
        display: none !important;
    }

    /* 图标库适配 */
    .icon-upload-methods {
        flex-direction: column !important;
        gap: var(--spacing-sm) !important;
    }

    .upload-method.url-method {
        width: 100% !important;
        flex-direction: column !important;
        gap: var(--spacing-sm) !important;
    }

    .upload-method.url-method input,
    .upload-method.url-method button {
        width: 100% !important;
    }

    .icon-library-toolbar {
        flex-direction: column !important;
        gap: var(--spacing-sm) !important;
        align-items: stretch !important;
    }

    .toolbar-left,
    .toolbar-right {
        width: 100% !important;
        justify-content: space-between !important;
    }

    .icon-delete-btn {
        opacity: 1 !important;
    }

    /* 搜索引擎弹窗适配 */
    .engine-icon-row {
        flex-direction: column !important;
        align-items: stretch !important;
    }

    .engine-icon-inputs {
        width: 100% !important;
    }

    .engine-icon-actions {
        width: 100% !important;
        display: flex !important;
        gap: var(--spacing-sm) !important;
    }

    .engine-icon-actions button {
        flex: 1 !important;
    }

    /* 图标选择器适配 */
    .icon-tabs {
        flex-wrap: wrap !important;
    }

    .icon-tab {
        flex: 1 !important;
        min-width: 55px !important;
        padding: var(--spacing-xs) !important;
        font-size: 0.75rem !important;
    }

    /* 信息框适配 */
    .info-box {
        flex-direction: column !important;
        text-align: center !important;
        gap: var(--spacing-xs) !important;
    }

    .info-box svg {
        flex-shrink: 0 !important;
    }
}

/* 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    /* 触摸设备上隐藏书签编辑删除按钮和分类操作按钮 */
    .bookmark-actions {
        display: none !important;
    }

    .header-action-btn {
        display: none !important;
    }

    .icon-delete-btn {
        opacity: 1 !important;
    }

    /* 增加触摸目标大小 */
    .btn {
        min-height: 44px;
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }

    .btn-sm {
        min-height: 40px;
    }

    /* 输入框增大 */
    input, select, textarea {
        font-size: 16px !important; /* 防止iOS自动缩放 */
    }

    /* 添加触摸反馈 */
    .bookmark-card:active {
        transform: scale(0.98);
        opacity: 0.9;
    }

    .btn:active {
        transform: scale(0.95);
        opacity: 0.9;
    }

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

    .settings-tab:active {
        transform: scale(0.95);
        opacity: 0.8;
    }

    .icon-library-item:active {
        transform: scale(0.9);
    }
}

/* 小屏手机适配 (< 480px) */
@media (max-width: 480px) {
    .settings-tab {
        min-width: 48px !important;
        padding: var(--spacing-xs) !important;
        font-size: 0.6rem !important;
    }

    .settings-tab svg {
        width: 16px !important;
        height: 16px !important;
    }

    .settings-tab span {
        max-width: 45px;
    }

    .panel-title {
        font-size: 0.95rem !important;
    }

    .icon-library-grid {
        grid-template-columns: repeat(auto-fill, minmax(45px, 1fr)) !important;
    }

    .icon-library-item {
        width: 45px !important;
        height: 45px !important;
    }

    .icon-library-item img {
        width: 24px !important;
        height: 24px !important;
    }
}

/* 超小屏手机适配 (< 380px) */
@media (max-width: 380px) {
    .container {
        padding: var(--spacing-xs) !important;
    }

    .logo {
        font-size: 1.4rem !important;
    }

    .logo-icon {
        font-size: 1.6rem !important;
    }

    .bookmarks-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: var(--spacing-xs) !important;
    }

    .bookmark-card {
        padding: var(--spacing-sm) !important;
    }

    .bookmark-icon {
        width: 36px !important;
        height: 36px !important;
    }

    .bookmark-name {
        font-size: 0.8rem !important;
    }

    .settings-tab {
        min-width: 44px !important;
        font-size: 0.55rem !important;
    }

    .settings-tab span {
        max-width: 40px;
    }
}

/* iOS 安全区域适配 */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
    @media (max-width: 768px) {
        .modal.modal-xl {
            padding-bottom: env(safe-area-inset-bottom);
        }

        .settings-content {
            padding-bottom: calc(var(--spacing-xl) + 80px + env(safe-area-inset-bottom)) !important;
        }

        .engine-dropdown {
            padding-bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom));
        }
    }
}

/* ========================================
   移动端性能优化
   ======================================== */
@media (max-width: 768px), (hover: none) and (pointer: coarse) {
    /* 禁用背景装饰动画，减少性能消耗 */
    .bg-orb {
        animation: none !important;
    }

    /* 禁用 logo 弹跳动画 */
    .logo-icon {
        animation: none !important;
    }

    /* 简化模糊效果，使用半透明背景替代 */
    .category-nav,
    .engine-btn,
    .search-box,
    .bookmark-card,
    .fixed-btn {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }

    /* 壁纸遮罩层也禁用模糊 */
    .wallpaper-overlay {
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }

    /* 启用 GPU 加速 */
    .bookmarks-container,
    .category-nav,
    .bookmark-card {
        transform: translateZ(0);
        will-change: auto;
    }

    /* 简化过渡效果 */
    .bookmark-card {
        transition: transform 0.15s ease, opacity 0.15s ease !important;
    }

    /* 简化阴影效果 */
    .bookmark-card {
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2) !important;
    }

    .category-btn.active {
        box-shadow: 0 2px 8px hsla(var(--primary-hue), 100%, 65%, 0.3) !important;
    }
}