/* CSS 变量定义 */
:root {
    /* 亮色主题 */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --accent-light: #eff6ff;
    --danger-color: #ef4444;
    --danger-hover: #dc2626;
    --danger-light: #fef2f2;
    --success-color: #10b981;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-card: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    
    /* 分类颜色 */
    --color-mine: #f43f5e;
    --color-development: #3b82f6;
    --color-design: #ec4899;
    --color-management: #8b5cf6;
    --color-monitor: #10b981;
    --color-document: #f59e0b;
    
    /* 过渡 */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
}

/* 暗色主题 */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-tertiary: #64748b;
    --border-color: #334155;
    --border-hover: #475569;
    --accent-light: #1e3a5f;
    --danger-light: #450a0a;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.3);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5), 0 8px 10px -6px rgb(0 0 0 / 0.4);
    --shadow-card: 0 1px 3px 0 rgb(0 0 0 / 0.3), 0 1px 2px -1px rgb(0 0 0 / 0.2);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

/* 应用容器 */
.app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 头部样式 */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(12px);
    background: rgba(var(--bg-secondary), 0.8);
}

[data-theme="dark"] .header {
    background: rgba(30, 41, 59, 0.85);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-color), #8b5cf6);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.logo-icon svg {
    width: 22px;
    height: 22px;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-color), #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* 搜索框 */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 14px;
    width: 18px;
    height: 18px;
    color: var(--text-tertiary);
    pointer-events: none;
}

.search-box input {
    width: 320px;
    height: 44px;
    padding: 0 80px 0 44px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    color: var(--text-primary);
    outline: none;
    transition: all var(--transition-normal);
}

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

.search-box input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.search-shortcut {
    position: absolute;
    right: 12px;
    padding: 4px 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-family: inherit;
    color: var(--text-tertiary);
}

/* 添加按钮 */
.btn-add {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-color), #8b5cf6);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    color: white;
}

.btn-add:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

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

/* 主题切换按钮 */
.theme-toggle {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

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

.theme-toggle svg {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
}

.theme-toggle .moon-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    display: block;
}

/* 主内容区域 */
.main-content {
    flex: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 32px 24px;
    width: 100%;
}

/* 分类导航 */
.category-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.category-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
}

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

.category-btn:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
    transform: translateY(-1px);
}

.category-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
    box-shadow: var(--shadow-md);
}

/* 分类按钮特定颜色 */
.category-btn[data-category="mine"]:hover,
.category-btn[data-category="mine"].active {
    background: var(--color-mine);
    border-color: var(--color-mine);
    color: white;
}

.category-btn[data-category="development"]:hover,
.category-btn[data-category="development"].active {
    background: var(--color-development);
    border-color: var(--color-development);
    color: white;
}

.category-btn[data-category="design"]:hover,
.category-btn[data-category="design"].active {
    background: var(--color-design);
    border-color: var(--color-design);
    color: white;
}

.category-btn[data-category="management"]:hover,
.category-btn[data-category="management"].active {
    background: var(--color-management);
    border-color: var(--color-management);
    color: white;
}

.category-btn[data-category="monitor"]:hover,
.category-btn[data-category="monitor"].active {
    background: var(--color-monitor);
    border-color: var(--color-monitor);
    color: white;
}

.category-btn[data-category="document"]:hover,
.category-btn[data-category="document"].active {
    background: var(--color-document);
    border-color: var(--color-document);
    color: white;
}

/* 卡片网格 */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

/* 卡片样式 */
.card {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
    color: inherit;
    overflow: hidden;
}

.card-link {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 24px;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--card-accent, var(--accent-color));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

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

/* 卡片操作按钮 */
.card-actions {
    position: absolute;
    top: 12px;
    right: 12px;
    display: flex;
    gap: 6px;
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: 10;
}

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

/* 非可编辑卡片不显示操作按钮 */
.card:not(.editable) .card-actions {
    display: none;
}

.card-action-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-tertiary);
}

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

.card-action-btn.edit:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
}

.card-action-btn.delete:hover {
    color: var(--danger-color);
    border-color: var(--danger-color);
}

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

.card-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.card-icon {
    width: 52px;
    height: 52px;
    min-width: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: var(--card-accent-light, var(--accent-light));
    color: var(--card-accent, var(--accent-color));
}

.card-icon svg {
    width: 26px;
    height: 26px;
}

.card-title-group {
    flex: 1;
    min-width: 0;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-category {
    font-size: 0.8125rem;
    color: var(--card-accent, var(--accent-color));
    font-weight: 500;
}

.card-description {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

.card-url {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.card-arrow {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    transition: all var(--transition-normal);
}

.card-arrow svg {
    width: 16px;
    height: 16px;
}

.card:hover .card-arrow {
    background: var(--card-accent, var(--accent-color));
    color: white;
    transform: translateX(2px);
}

/* 分类颜色变量 */
.card[data-category="mine"] {
    --card-accent: var(--color-mine);
    --card-accent-light: #fff1f2;
}

.card[data-category="development"] {
    --card-accent: var(--color-development);
    --card-accent-light: #eff6ff;
}

.card[data-category="design"] {
    --card-accent: var(--color-design);
    --card-accent-light: #fdf2f8;
}

.card[data-category="management"] {
    --card-accent: var(--color-management);
    --card-accent-light: #f5f3ff;
}

.card[data-category="monitor"] {
    --card-accent: var(--color-monitor);
    --card-accent-light: #ecfdf5;
}

.card[data-category="document"] {
    --card-accent: var(--color-document);
    --card-accent-light: #fffbeb;
}

[data-theme="dark"] .card[data-category="mine"] {
    --card-accent-light: rgba(244, 63, 94, 0.15);
}

[data-theme="dark"] .card[data-category="development"] {
    --card-accent-light: rgba(59, 130, 246, 0.15);
}

[data-theme="dark"] .card[data-category="design"] {
    --card-accent-light: rgba(236, 72, 153, 0.15);
}

[data-theme="dark"] .card[data-category="management"] {
    --card-accent-light: rgba(139, 92, 246, 0.15);
}

[data-theme="dark"] .card[data-category="monitor"] {
    --card-accent-light: rgba(16, 185, 129, 0.15);
}

[data-theme="dark"] .card[data-category="document"] {
    --card-accent-light: rgba(245, 158, 11, 0.15);
}

/* 空状态 */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 24px;
    text-align: center;
}

.empty-state svg {
    width: 80px;
    height: 80px;
    color: var(--text-tertiary);
    margin-bottom: 24px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--text-secondary);
}

/* 底部 */
.footer {
    padding: 24px;
    text-align: center;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.footer p {
    font-size: 0.875rem;
    color: var(--text-tertiary);
}

/* 弹窗样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    padding: 24px;
}

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

.modal {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-normal);
    /* 隐藏滚动条但保持滚动功能 */
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
}

.modal::-webkit-scrollbar {
    display: none; /* Chrome/Safari/Opera */
}

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

.modal-sm {
    max-width: 400px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 1.25rem;
    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);
    cursor: pointer;
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
}

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

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

.modal-body {
    padding: 24px;
}

.modal-body p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.modal-form {
    padding: 24px;
}

/* 表单提示 */
.form-tip {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--accent-light);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    color: var(--accent-color);
    font-size: 0.875rem;
}

.form-tip svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group .required {
    color: var(--danger-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    color: var(--text-primary);
    outline: none;
    transition: all var(--transition-normal);
    font-family: inherit;
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-light);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* 图标选择网格 */
.icon-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
    padding: 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    max-height: 200px;
    overflow-y: auto;
}

.icon-grid-item {
    width: 100%;
    aspect-ratio: 1;
    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);
    color: var(--text-secondary);
}

.icon-grid-item:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
    transform: scale(1.05);
}

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

.icon-grid-item svg {
    width: 20px;
    height: 20px;
    pointer-events: none;
}

/* 自定义滚动条 */
.icon-grid::-webkit-scrollbar {
    width: 6px;
}

.icon-grid::-webkit-scrollbar-track {
    background: transparent;
}

.icon-grid::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.icon-grid::-webkit-scrollbar-thumb:hover {
    background: var(--border-hover);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 20px 24px;
    border-top: 1px solid var(--border-color);
}

/* 表单内的按钮区域不需要额外padding和边框 */
.modal-form .modal-actions {
    padding: 0;
    padding-top: 8px;
    border-top: none;
}

/* 按钮样式 */
.btn {
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    font-family: inherit;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

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

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background: var(--danger-hover);
    box-shadow: var(--shadow-md);
}

/* Toast 提示 */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 14px 24px;
    background: var(--text-primary);
    color: var(--bg-primary);
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    font-weight: 500;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 2000;
}

.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.toast.success {
    background: var(--success-color);
    color: white;
}

.toast.error {
    background: var(--danger-color);
    color: white;
}

/* 密码弹窗样式 */
.password-overlay {
    z-index: 2000;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
}

.password-overlay .modal {
    max-width: 400px;
}

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

.password-overlay .modal-body {
    padding: 24px;
}

.password-overlay .form-group {
    margin-bottom: 0;
}

.password-overlay .form-tip {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--accent-light);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    color: var(--accent-color);
    font-size: 0.875rem;
}

.password-overlay .form-tip svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.password-overlay .form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.password-overlay .form-group input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    color: var(--text-primary);
    outline: none;
    transition: all var(--transition-normal);
    font-family: inherit;
}

.password-overlay .form-group input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.password-overlay .form-group input.error {
    border-color: var(--danger-color);
}

.password-overlay .form-group input.error:focus {
    box-shadow: 0 0 0 3px var(--danger-light);
}

#passwordError {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 8px;
    display: none;
    line-height: 1.4;
}

#passwordError.show {
    display: block;
}

.password-overlay .modal-actions {
    padding: 20px 24px;
    border-top: 1px solid var(--border-color);
    margin-top: 20px;
}

.password-overlay .modal-actions .btn {
    width: 100%;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
        gap: 16px;
    }
    
    .search-box {
        order: 3;
        width: 100%;
    }
    
    .search-box input {
        width: 100%;
    }
    
    .logo-text {
        font-size: 1.125rem;
    }
    
    .category-nav {
        gap: 8px;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 16px;
        margin-bottom: 24px;
        -webkit-overflow-scrolling: touch;
    }
    
    .category-btn {
        padding: 8px 14px;
        font-size: 0.875rem;
        white-space: nowrap;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .main-content {
        padding: 24px 16px;
    }
    
    .modal {
        margin: 16px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .card.editable .card-actions {
        opacity: 1;
    }
}

@media (max-width: 480px) {
    .card {
        padding: 20px;
    }
    
    .card-icon {
        width: 44px;
        height: 44px;
        min-width: 44px;
    }
    
    .card-icon svg {
        width: 22px;
        height: 22px;
    }
    
    .card-title {
        font-size: 1rem;
    }
    
    .search-shortcut {
        display: none;
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    .modal-actions .btn {
        width: 100%;
    }
}

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

.card {
    animation: fadeInUp 0.4s ease backwards;
}

.card:nth-child(1) { animation-delay: 0.05s; }
.card:nth-child(2) { animation-delay: 0.1s; }
.card:nth-child(3) { animation-delay: 0.15s; }
.card:nth-child(4) { animation-delay: 0.2s; }
.card:nth-child(5) { animation-delay: 0.25s; }
.card:nth-child(6) { animation-delay: 0.3s; }
.card:nth-child(7) { animation-delay: 0.35s; }
.card:nth-child(8) { animation-delay: 0.4s; }
.card:nth-child(9) { animation-delay: 0.45s; }
.card:nth-child(10) { animation-delay: 0.5s; }
.card:nth-child(11) { animation-delay: 0.55s; }
.card:nth-child(12) { animation-delay: 0.6s; }