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

:root {
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --primary-soft: rgba(59, 130, 246, 0.12);
    --accent-color: #6366f1;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #0ea5e9;
    --success-color: #22c55e;
    --text-color: #1f2937;
    --text-secondary: #6b7280;
    --border-color: rgba(148, 163, 184, 0.35);
    --border-strong: rgba(148, 163, 184, 0.6);
    --bg-color: #eef2ff;
    --card-bg: rgba(255, 255, 255, 0.9);
    --card-border: rgba(255, 255, 255, 0.6);
    --shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
    --shadow-hover: 0 24px 48px rgba(15, 23, 42, 0.12);
    --sidebar-gradient: linear-gradient(195deg, #111827 0%, #1f2937 55%, #312e81 100%);
    --content-gradient: linear-gradient(135deg, rgba(248, 250, 252, 0.96) 0%, rgba(237, 233, 254, 0.96) 100%);
    --glass-blur: blur(18px);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-color);
    background: radial-gradient(circle at 0% 0%, rgba(99, 102, 241, 0.12), transparent 55%),
                radial-gradient(circle at 100% 0%, rgba(14, 165, 233, 0.12), transparent 55%),
                var(--content-gradient);
    min-height: 100vh;
}

/* 登录页面 */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-box {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
    padding: 40px;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.logo {
    display: inline-block;
    margin-bottom: 16px;
}

.login-header h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 8px;
}

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

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

.login-form label {
    display: flex;
    align-items: center;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 8px;
}

.login-form label svg {
    margin-right: 6px;
    color: var(--text-secondary);
}

.login-form input[type="text"],
.login-form input[type="password"] {
    width: 100%;
    padding: 12px 16px;
    font-size: 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    outline: none;
    transition: border-color 0.3s;
}

.login-form input:focus {
    border-color: var(--primary-color);
}

.checkbox-group label {
    font-weight: normal;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    margin-right: 8px;
    cursor: pointer;
}

.error-message {
    background: #ffebee;
    color: var(--danger-color);
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 14px;
    border-left: 3px solid var(--danger-color);
}

.success-message {
    background: #e8f5e9;
    color: var(--success-color);
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 14px;
    border-left: 3px solid var(--success-color);
}

.btn {
    position: relative;
    padding: 12px 26px;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
    outline: none;
    letter-spacing: 0.2px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn:focus-visible {
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

.btn-primary {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.95), rgba(99, 102, 241, 0.95));
    color: #fff;
    box-shadow: 0 18px 32px rgba(59, 130, 246, 0.28);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 22px 38px rgba(59, 130, 246, 0.34);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-block {
    width: 100%;
}

.login-footer {
    margin-top: 24px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 12px;
}

.version {
    margin-top: 8px;
    color: #999;
}

/* Dashboard 布局 */
.dashboard {
    position: relative;
    display: flex;
    min-height: 100vh;
    padding: 32px;
    gap: 28px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

/* 侧边栏 */
.sidebar {
    width: 260px;
    background: var(--sidebar-gradient);
    color: rgba(241, 245, 249, 0.95);
    display: flex;
    flex-direction: column;
    border-radius: 28px;
    padding: 8px 0 16px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.08);
    overflow: hidden;
}

.sidebar-header {
    padding: 28px 28px 16px;
}

.sidebar-header h2 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.4px;
    margin-bottom: 6px;
}

.sidebar-header .user-info {
    font-size: 13px;
    color: rgba(226, 232, 240, 0.7);
    margin-top: 8px;
}

.sidebar-header .user-role {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(67, 56, 202, 0.35);
    border-radius: 999px;
    font-size: 11px;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.sidebar-nav {
    flex: 1;
    padding: 8px 12px 24px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    gap: 14px;
    color: rgba(241, 245, 249, 0.72);
    text-decoration: none;
    border-radius: 14px;
    transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
    cursor: pointer;
    position: relative;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    transform: translateX(4px);
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.18);
}

.nav-item.active {
    background: rgba(255, 255, 255, 0.16);
    color: #fff;
    box-shadow: 0 14px 28px rgba(37, 99, 235, 0.28);
}

.nav-item svg {
    width: 20px;
    height: 20px;
    opacity: 0.9;
}

.sidebar-footer {
    padding: 18px 24px 0;
}

/* 主内容区 */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--card-bg);
    border-radius: 34px;
    box-shadow: var(--shadow);
    border: 1px solid var(--card-border);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    padding: 0;
}

/* 顶部栏 */
.top-bar {
    position: sticky;
    top: 0;
    z-index: 5;
    background: rgba(255, 255, 255, 0.78);
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
    padding: 20px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

.search-box {
    flex: 1;
    max-width: 420px;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 12px 44px 12px 44px;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    font-size: 15px;
    outline: none;
    transition: border-color 0.3s;
    background: rgba(255, 255, 255, 0.9);
}

.search-box input:focus {
    border-color: rgba(59, 130, 246, 0.45);
    box-shadow: 0 10px 18px rgba(59, 130, 246, 0.12);
}

.search-box .search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(99, 102, 241, 0.6);
    pointer-events: none;
}

.search-box .search-clear {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    padding: 4px;
    cursor: pointer;
    color: rgba(107, 114, 128, 0.6);
    transition: all 0.2s;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-box .search-clear:hover {
    background: rgba(239, 68, 68, 0.1);
    color: rgba(239, 68, 68, 0.9);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 10px 16px;
    border-radius: 999px;
    transition: background-color 0.2s, box-shadow 0.2s;
    border: 1px solid rgba(148, 163, 184, 0.25);
    background: rgba(248, 250, 252, 0.65);
}

.user-menu:hover {
    background-color: rgba(248, 250, 252, 0.95);
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.12);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.95), rgba(59, 130, 246, 0.95));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 15px;
    transition: transform 0.2s;
}

.user-menu:hover .user-avatar {
    transform: scale(1.08);
}

/* 内容区域 */
.content-area {
    flex: 1;
    padding: 32px 36px 32px;
    overflow-y: auto;
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.9) 0%, rgba(238, 242, 255, 0.82) 100%);
}

.page-header {
    margin-bottom: 28px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.page-header h1 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 0.4px;
    color: #111827;
}

.page-header p {
    color: rgba(79, 89, 107, 0.75);
    font-size: 14px;
}

/* 工具栏 */
.toolbar {
    background: rgba(255, 255, 255, 0.85);
    padding: 18px 22px;
    border-radius: 22px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    border: 1px solid rgba(148, 163, 184, 0.18);
    box-shadow: 0 20px 38px rgba(15, 23, 42, 0.08);
}

.toolbar-left,
.toolbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
    line-height: 1.2;
}

.btn-success {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.92), rgba(16, 185, 129, 0.92));
    color: #fff;
    box-shadow: 0 18px 32px rgba(16, 185, 129, 0.24);
}

.btn-success:hover {
    transform: translateY(-1px);
    box-shadow: 0 22px 36px rgba(16, 185, 129, 0.32);
}

.btn-danger {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.92), rgba(244, 114, 182, 0.85));
    color: #fff;
    box-shadow: 0 18px 32px rgba(239, 68, 68, 0.24);
}

.btn-danger:hover {
    transform: translateY(-1px);
    box-shadow: 0 22px 36px rgba(239, 68, 68, 0.33);
}

.btn-secondary {
    background: rgba(15, 23, 42, 0.76);
    color: #f8fafc;
    border: 1px solid rgba(148, 163, 184, 0.35);
}

.btn-secondary:hover {
    transform: translateY(-1px);
    background: rgba(15, 23, 42, 0.88);
    box-shadow: 0 18px 26px rgba(15, 23, 42, 0.24);
}

/* 文件列表 */
.file-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.file-card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 16px;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: all 0.3s;
}

.file-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.file-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: var(--bg-color);
}

.file-name {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-meta {
    font-size: 12px;
    color: var(--text-secondary);
}

/* 文件表格视图 */
.file-table {
    background: rgba(255, 255, 255, 0.88);
    border-radius: 24px;
    box-shadow: var(--shadow);
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.15);
}

.file-table table {
    width: 100%;
    border-collapse: collapse;
}

.file-table thead th {
    position: sticky;
    top: 0;
    background: linear-gradient(180deg, rgba(248, 250, 252, 0.92), rgba(226, 232, 240, 0.88));
    font-weight: 600;
    letter-spacing: 0.3px;
    color: rgba(79, 89, 107, 0.9);
    font-size: 13px;
    padding: 14px 16px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.28);
    z-index: 1;
    backdrop-filter: var(--glass-blur);
}

.file-table tbody td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    font-size: 13px;
    color: rgba(15, 23, 42, 0.85);
}

.file-table tbody tr:hover {
    background: rgba(59, 130, 246, 0.05);
}

.file-table tr:last-child td {
    border-bottom: none;
}

/* 对话框/模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    border-radius: 12px;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

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

.modal-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

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

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

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

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 14px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
}

/* 标签 */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.3px;
    background: rgba(15, 23, 42, 0.08);
    color: rgba(15, 23, 42, 0.72);
    text-transform: uppercase;
}

.badge-success {
    background: rgba(34, 197, 94, 0.16);
    color: #047857;
}

.badge-danger {
    background: rgba(239, 68, 68, 0.16);
    color: #b91c1c;
}

.badge-warning {
    background: rgba(245, 158, 11, 0.18);
    color: #b45309;
}

.badge-info {
    background: rgba(14, 165, 233, 0.16);
    color: #0369a1;
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    position: relative;
    background: rgba(255, 255, 255, 0.88);
    border-radius: 24px;
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(148, 163, 184, 0.18);
    overflow: hidden;
}

.stat-card h3 {
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: rgba(79, 89, 107, 0.7);
    font-weight: 600;
    margin-bottom: 12px;
}

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 700;
    color: #111827;
}

.stat-card .stat-change {
    font-size: 12px;
    margin-top: 10px;
}

/* 加载动画 */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

.spinner {
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 70px 20px;
    color: rgba(79, 89, 107, 0.72);
    background: rgba(255, 255, 255, 0.8);
    border-radius: 24px;
    border: 1px dashed rgba(148, 163, 184, 0.3);
}

.empty-state svg {
    width: 80px;
    height: 80px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #0f172a;
}

/* 文件夹树形结构样式 */
.folder-tree {
    background: rgba(255, 255, 255, 0.85);
    border-radius: 22px;
    padding: 20px;
    border: 1px solid rgba(148, 163, 184, 0.18);
    box-shadow: var(--shadow);
}

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

.folder-header {
    background: rgba(59, 130, 246, 0.06);
    padding: 14px 18px;
    border-radius: 14px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    transition: background 0.2s;
}

.folder-header:hover {
    background: rgba(59, 130, 246, 0.12);
}

.folder-toggle {
    font-size: 12px;
    color: #666;
}

.folder-content {
    margin-top: 8px;
    padding-left: 16px;
}

.empty-folder {
    padding: 20px;
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
}

.all-files-organized {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 16px;
}

.owner-section {
    margin-bottom: 24px;
}

.owner-header {
    background: #f5f5f5;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 12px;
}

/* 资源管理器样式 */
.file-explorer {
    background: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
}

.file-table {
    width: 100%;
    border-collapse: collapse;
}

.file-table thead {
    background: #f5f5f5;
    border-bottom: 2px solid var(--border-color);
}

.file-table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: var(--text-color);
    font-size: 14px;
}

.file-table tbody tr {
    border-bottom: 1px solid #f0f0f0;
    transition: background 0.2s;
}

.file-table tbody tr:hover {
    background: #f9f9f9;
}

.file-table tbody td {
    padding: 6px 12px;
    vertical-align: middle;
    font-size: 13px;
}

.folder-row, .file-row {
    cursor: pointer;
}

.folder-toggle {
    display: inline-block;
    width: 16px;
    height: 16px;
    text-align: center;
    cursor: pointer;
    user-select: none;
    color: #666;
    font-size: 12px;
}

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

.file-icon {
    display: inline-block;
    margin-right: 6px;
    font-size: 18px;
    vertical-align: middle;
}

.file-name-cell {
    display: flex;
    align-items: center;
    gap: 10px;
}

.file-name-text {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.folder-children {
    background: rgba(248, 250, 252, 0.8);
}

.file-table.nested {
    margin: 0;
    background: transparent;
}

.file-table.nested thead {
    display: none;
}

.btn-icon {
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.2);
    cursor: pointer;
    color: #a0a0a0;
    border-radius: 6px;
    padding: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    width: auto;
    height: auto;
    min-width: 32px;
    min-height: 32px;
    transition: all 0.25s ease;
}

.btn-icon:hover {
    transform: scale(1.15);
    background: rgba(251, 191, 36, 0.2);
    border-color: rgba(251, 191, 36, 0.4);
    box-shadow: 0 2px 8px rgba(251, 191, 36, 0.3);
}

.favorite-icon {
    font-size: 22px;
    color: #666;
    transition: all 0.2s;
    line-height: 1;
    display: inline-block;
    font-weight: normal;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.favorite-icon:hover {
    color: #f59e0b;
    transform: scale(1.2);
    text-shadow: 0 2px 4px rgba(245, 158, 11, 0.4);
}

.favorite-icon.favorited {
    color: #f59e0b;
    font-weight: bold;
    text-shadow: 0 2px 4px rgba(245, 158, 11, 0.5);
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 9999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.5);
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

.back-to-top:active {
    transform: translateY(-2px);
}

.all-files-by-owner {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.owner-section {
    background: rgba(255, 255, 255, 0.85);
    border-radius: 24px;
    border: 1px solid rgba(148, 163, 184, 0.18);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.owner-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.14), rgba(14, 165, 233, 0.12));
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

.owner-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    color: #111827;
}

.file-count {
    color: rgba(79, 89, 107, 0.75);
    font-size: 13px;
}

.owner-content {
    padding: 0 6px 6px;
}

/* 响应式 */
@media (max-width: 768px) {
    .dashboard {
        flex-direction: column;
        padding: 16px;
    }

    .sidebar {
        position: fixed;
        left: -260px;
        top: 0;
        height: 100%;
        z-index: 100;
        transition: left 0.3s;
        border-radius: 0;
    }

    .main-content {
        border-radius: 24px;
    }

    .sidebar.active {
        left: 0;
    }

    .file-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }

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

    .toolbar {
        flex-direction: column;
        align-items: stretch;
        border-radius: 18px;
    }

    .toolbar-left,
    .toolbar-right {
        width: 100%;
        margin-bottom: 8px;
    }

    .top-bar {
        padding: 16px 20px;
    }
}

/* 工具提示 */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 120px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -60px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 12px;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

/* 文件上传区域 */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

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

.upload-area input[type="file"] {
    display: none;
}

/* 进度条 */
.progress {
    height: 8px;
    background: var(--bg-color);
    border-radius: 4px;
    overflow: hidden;
    margin: 8px 0;
}

.progress-bar {
    height: 100%;
    background: var(--primary-color);
    transition: width 0.3s;
}

/* 文件详情表格 */
.file-info-table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
}

.file-info-table tr {
    border-bottom: 1px solid #f0f0f0;
}

.file-info-table tr:last-child {
    border-bottom: none;
}

.file-info-table td {
    padding: 12px 8px;
    font-size: 14px;
}

.file-info-table td:first-child {
    width: 120px;
    color: var(--text-secondary);
}

.file-info-table td:last-child {
    color: var(--text-color);
}

/* 同步文件夹卡片 */
.sync-folders-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(450px, 1fr));
    gap: 20px;
    padding: 20px 0;
}

.sync-folder-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.sync-folder-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.sync-folder-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid #e5e7eb;
}

.sync-folder-header h3 {
    color: #111827;
    font-weight: 600;
}

.sync-status {
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
}

.sync-folder-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.sync-option,
.sync-time {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: #6b7280;
}

.sync-folder-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .sync-folders-list {
        grid-template-columns: 1fr;
    }
    
    .sync-folder-info {
        grid-template-columns: 1fr;
    }
}

/* 文件夹树选择器 */
.folder-tree-item {
    margin: 4px 0;
}

.folder-tree-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.folder-tree-row:hover {
    background-color: #f3f4f6;
}

.folder-tree-row.selected {
    background-color: #dbeafe;
    border: 2px solid #3b82f6;
}

.folder-toggle {
    font-size: 16px;
    line-height: 1;
}

.folder-name {
    flex: 1;
    font-size: 14px;
    color: #374151;
}

.folder-children {
    margin-left: 20px;
}

/* Excel表格搜索高亮 */
.excel-highlight {
    background: #fef3c7 !important;
    color: #92400e !important;
    padding: 2px 4px;
    border-radius: 3px;
    font-weight: 500;
}

/* 通用搜索高亮样式 */
mark {
    background: #fef3c7;
    color: #92400e;
    padding: 2px 4px;
    border-radius: 3px;
    font-weight: 500;
}