/* =====================================================
   论坛管理后台 - 现代百度风格设计系统
   ===================================================== */

:root {
    --primary: #4E6EF2;
    --primary-hover: #3A5BE0;
    --primary-active: #2B4BCC;
    --primary-bg: #F0F5FF;
    --primary-border: #ADC6FF;
    
    --success: #00B42A;
    --success-hover: #009A29;
    --success-bg: #E8FFEA;
    --success-border: #8EE89F;
    
    --warning: #FF7D00;
    --warning-hover: #E67000;
    --warning-bg: #FFF3E8;
    --warning-border: #FFC799;
    
    --danger: #F53F3F;
    --danger-hover: #D93535;
    --danger-bg: #FFECE8;
    --danger-border: #FFB4A8;
    
    --info: #3491FA;
    --info-hover: #2878D4;
    --info-bg: #E8F3FF;
    --info-border: #9CC7FF;
    
    --text-1: #1D2129;
    --text-2: #4E5969;
    --text-3: #86909C;
    --text-4: #C9CDD4;
    
    --border-1: #F2F3F5;
    --border-2: #E5E6EB;
    --border-3: #C9CDD4;
    
    --bg-1: #FFFFFF;
    --bg-2: #F7F8FA;
    --bg-3: #F2F3F5;
    --bg-4: #E5E6EB;
    
    --sidebar-bg: #FFFFFF;
    --sidebar-width: 232px;
    --header-height: 56px;
    
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    --shadow-1: 0 1px 2px rgba(0,0,0,0.03), 0 1px 3px rgba(0,0,0,0.04);
    --shadow-2: 0 4px 10px -2px rgba(0,0,0,0.07), 0 2px 6px -3px rgba(0,0,0,0.06);
    --shadow-3: 0 8px 24px -6px rgba(0,0,0,0.08), 0 4px 12px -4px rgba(0,0,0,0.05);
    --shadow-4: 0 12px 32px -8px rgba(0,0,0,0.1), 0 6px 20px -6px rgba(0,0,0,0.06);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-1);
    background: var(--bg-2);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* ========== 布局系统 ========== */
.admin-layout {
    display: flex;
    min-height: 100vh;
    background: var(--bg-2);
}

.admin-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-2);
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.admin-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-2);
}

.admin-header {
    background: var(--bg-1);
    border-bottom: 1px solid var(--border-2);
    padding: 0 28px;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-1);
}

.admin-content {
    flex: 1;
    padding: 24px 28px;
    min-width: 0;
}

/* ========== 侧边栏 ========== */
.sidebar-logo {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 20px;
    border-bottom: 1px solid var(--border-1);
    gap: 10px;
    flex-shrink: 0;
}

.sidebar-logo i {
    font-size: 22px;
    color: var(--primary);
    width: 28px;
    text-align: center;
}

.sidebar-logo-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-1);
    letter-spacing: 0.3px;
}

.sidebar-menu {
    flex: 1;
    padding: 12px 10px;
    overflow-y: auto;
}

.sidebar-menu::-webkit-scrollbar {
    width: 4px;
}

.sidebar-menu::-webkit-scrollbar-thumb {
    background: var(--border-3);
    border-radius: 2px;
}

.menu-section-title {
    padding: 12px 14px 8px;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-3);
    letter-spacing: 0.8px;
    text-transform: uppercase;
}

.nav-link-item {
    display: flex;
    align-items: center;
    padding: 9px 14px;
    margin-bottom: 2px;
    color: var(--text-2);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all 0.18s ease;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    position: relative;
}

.nav-link-item:hover {
    background: var(--bg-2);
    color: var(--text-1);
}

.nav-link-item.active {
    background: var(--primary-bg);
    color: var(--primary);
    font-weight: 600;
}

.nav-link-item.active::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 18px;
    background: var(--primary);
    border-radius: 0 2px 2px 0;
}

.nav-link-item i {
    width: 20px;
    margin-right: 10px;
    font-size: 15px;
    text-align: center;
}

/* ========== 头部 ========== */
.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.toggle-btn {
    display: none;
    padding: 6px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-2);
    font-size: 18px;
    border-radius: var(--radius-xs);
    transition: all 0.2s;
}

.toggle-btn:hover {
    background: var(--bg-2);
    color: var(--text-1);
}

.header-time {
    color: var(--text-3);
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-1);
    cursor: pointer;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
    font-size: 13px;
    font-weight: 500;
}

.user-info:hover {
    background: var(--bg-2);
}

.user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #6B8FFF);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
}

.logout-btn {
    color: var(--text-2);
    text-decoration: none;
    font-size: 13px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.logout-btn:hover {
    color: var(--danger);
    background: var(--danger-bg);
}

/* ========== 页面标题 ========== */
.page-header {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.page-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-1);
    margin: 0;
    letter-spacing: -0.3px;
}

/* ========== 统计卡片 ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--bg-1);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    box-shadow: var(--shadow-1);
    transition: all 0.25s ease;
    border: 1px solid var(--border-1);
    position: relative;
    overflow: hidden;
}

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

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 16px;
    font-size: 20px;
    flex-shrink: 0;
}

.stat-icon.users {
    background: var(--primary-bg);
    color: var(--primary);
}

.stat-icon.posts {
    background: var(--success-bg);
    color: var(--success);
}

.stat-icon.comments {
    background: var(--warning-bg);
    color: var(--warning);
}

.stat-icon.vip {
    background: #F3E8FF;
    color: #9254DE;
}

.stat-content {
    flex: 1;
    min-width: 0;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-1);
    line-height: 1.2;
    letter-spacing: -0.5px;
    margin-bottom: 2px;
}

.stat-label {
    color: var(--text-3);
    font-size: 13px;
    font-weight: 500;
}

/* ========== 卡片容器 ========== */
.data-card {
    background: var(--bg-1);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-1);
    border: 1px solid var(--border-1);
    overflow: hidden;
    margin-bottom: 20px;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-1);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-1);
    margin: 0;
}

.card-actions {
    display: flex;
    gap: 8px;
}

.card-body {
    padding: 20px;
}

/* ========== 搜索栏 ========== */
.search-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
    align-items: center;
}

.search-input {
    flex: 1;
    max-width: 300px;
    min-width: 200px;
}

.filter-select {
    width: 130px;
    flex-shrink: 0;
}

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 7px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    text-decoration: none;
    line-height: 1.5;
    white-space: nowrap;
    font-family: inherit;
    user-select: none;
}

.btn:active {
    transform: scale(0.98);
}

.btn-sm {
    padding: 5px 12px;
    font-size: 13px;
    border-radius: var(--radius-xs);
    gap: 4px;
}

.btn-lg {
    padding: 9px 20px;
    font-size: 15px;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

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

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

.btn-success {
    background: var(--success);
    color: #fff;
    border-color: var(--success);
}

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

.btn-warning {
    background: var(--warning);
    color: #fff;
    border-color: var(--warning);
}

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

.btn-danger {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
}

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

.btn-info {
    background: var(--info);
    color: #fff;
    border-color: var(--info);
}

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

.btn-default {
    background: var(--bg-1);
    color: var(--text-2);
    border: 1px solid var(--border-3);
}

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

.btn-outline {
    background: var(--bg-1);
    color: var(--text-2);
    border: 1px solid var(--border-3);
}

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

.btn-outline-primary {
    background: var(--bg-1);
    border: 1px solid var(--primary);
    color: var(--primary);
}

.btn-outline-primary:hover {
    background: var(--primary);
    color: #fff;
}

.btn-outline-success {
    background: var(--bg-1);
    border: 1px solid var(--success);
    color: var(--success);
}

.btn-outline-success:hover {
    background: var(--success);
    color: #fff;
}

.btn-outline-danger {
    background: var(--bg-1);
    border: 1px solid var(--danger);
    color: var(--danger);
}

.btn-outline-danger:hover {
    background: var(--danger);
    color: #fff;
}

.btn-outline-warning {
    background: var(--bg-1);
    border: 1px solid var(--warning);
    color: var(--warning);
}

.btn-outline-warning:hover {
    background: var(--warning);
    color: #fff;
}

.btn-outline-info {
    background: var(--bg-1);
    border: 1px solid var(--info);
    color: var(--info);
}

.btn-outline-info:hover {
    background: var(--info);
    color: #fff;
}

/* ========== 表单 ========== */
.form-group {
    margin-bottom: 18px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-label {
    display: block;
    margin-bottom: 6px;
    color: var(--text-1);
    font-weight: 500;
    font-size: 14px;
}

.form-label .required {
    color: var(--danger);
    margin-left: 2px;
    font-weight: 600;
}

.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-3);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-1);
    background: var(--bg-1);
    font-family: inherit;
    line-height: 1.5;
    transition: all 0.2s ease;
    outline: none;
}

.form-control:hover {
    border-color: var(--primary-border);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(78, 110, 242, 0.1);
}

.form-control:disabled {
    background: var(--bg-2);
    color: var(--text-3);
    cursor: not-allowed;
    border-color: var(--border-2);
}

.form-control::placeholder {
    color: var(--text-4);
}

.form-select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-3);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-1);
    background: var(--bg-1);
    cursor: pointer;
    font-family: inherit;
    line-height: 1.5;
    transition: all 0.2s ease;
    outline: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 12 12' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M2.5 4.5L6 8L9.5 4.5' stroke='%2386909C' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.form-select:hover {
    border-color: var(--primary-border);
}

.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(78, 110, 242, 0.1);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
    font-family: inherit;
    line-height: 1.6;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text-2);
    font-size: 14px;
}

.form-check-input {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--primary);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.form-error {
    color: var(--danger);
    font-size: 12px;
    margin-top: 5px;
    display: none;
    align-items: center;
    gap: 4px;
    line-height: 1.4;
}

.form-error.show {
    display: flex;
}

.form-group.has-error .form-control,
.form-group.has-error .form-select {
    border-color: var(--danger);
    box-shadow: 0 0 0 3px rgba(245, 63, 63, 0.08);
}

.form-group.has-error .form-label {
    color: var(--danger);
}

.radio-group {
    display: flex;
    gap: 20px;
    margin-top: 8px;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text-2);
    font-weight: 500;
    font-size: 14px;
}

.radio-group input[type="radio"] {
    accent-color: var(--primary);
    width: 16px;
    height: 16px;
    cursor: pointer;
}

/* ========== 表格 ========== */
.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.data-table thead {
    background: var(--bg-2);
}

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-2);
    border-bottom: 1px solid var(--border-2);
    font-size: 13px;
    white-space: nowrap;
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-1);
    color: var(--text-1);
    vertical-align: middle;
}

.data-table tbody tr {
    transition: background 0.15s ease;
}

.data-table tbody tr:hover {
    background: var(--bg-2);
}

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

/* ========== 用户单元格 ========== */
.user-cell {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-cell-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    flex-shrink: 0;
}

.user-cell-info {
    min-width: 0;
}

.user-cell-name {
    font-weight: 500;
    color: var(--text-1);
    margin-bottom: 2px;
    font-size: 14px;
}

.user-cell-id {
    font-size: 12px;
    color: var(--text-3);
}

/* ========== 状态标签 ========== */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    line-height: 1.5;
}

.status-badge.success {
    background: var(--success-bg);
    color: var(--success);
}

.status-badge.warning {
    background: var(--warning-bg);
    color: var(--warning);
}

.status-badge.error {
    background: var(--danger-bg);
    color: var(--danger);
}

.status-badge.info {
    background: var(--info-bg);
    color: var(--info);
}

.status-badge.default {
    background: var(--bg-3);
    color: var(--text-2);
}

/* ========== VIP徽章 ========== */
.vip-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.vip-badge.gold {
    background: linear-gradient(135deg, #FFD991, #FFB340);
    color: #fff;
}

.vip-badge.platinum {
    background: linear-gradient(135deg, #9FD0FF, #5CA8FF);
    color: #fff;
}

.vip-badge.diamond {
    background: linear-gradient(135deg, #D8B8F7, #A66EE0);
    color: #fff;
}

.vip-badge.none {
    background: var(--bg-3);
    color: var(--text-3);
    font-weight: 500;
}

/* ========== 操作按钮组 ========== */
.action-buttons {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* ========== 分页 ========== */
.pagination-wrapper {
    display: flex;
    justify-content: center;
    padding: 20px 0 4px;
}

.pagination {
    display: flex;
    gap: 6px;
    align-items: center;
}

.page-item {
    min-width: 32px;
    height: 32px;
    padding: 0 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--bg-1);
    border: 1px solid var(--border-2);
    color: var(--text-2);
    font-size: 13px;
    font-weight: 500;
    user-select: none;
}

.page-item:hover:not(.disabled):not(.active) {
    color: var(--primary);
    border-color: var(--primary);
}

.page-item.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.page-item.disabled {
    color: var(--text-4);
    cursor: not-allowed;
    background: var(--bg-2);
    border-color: var(--border-1);
}

/* ========== 模态框 ========== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(2px);
    display: flex !important;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

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

.modal-content {
    background: var(--bg-1);
    border-radius: var(--radius-lg);
    width: 500px;
    max-width: 92vw;
    max-height: 88vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: translateY(16px) scale(0.98);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-4);
}

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

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.modal-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-1);
}

.modal-close {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-3);
    transition: all 0.2s ease;
    border-radius: var(--radius-xs);
    font-size: 16px;
    border: none;
    background: none;
}

.modal-close:hover {
    color: var(--text-1);
    background: var(--bg-2);
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--border-1);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    flex-shrink: 0;
}

/* ========== Toast ========== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
}

.toast {
    padding: 12px 18px;
    background: var(--bg-1);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-3);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    animation: slideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 220px;
    border: 1px solid var(--border-2);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.success {
    border-left: 3px solid var(--success);
}

.toast.error {
    border-left: 3px solid var(--danger);
}

.toast.warning {
    border-left: 3px solid var(--warning);
}

.toast.info {
    border-left: 3px solid var(--info);
}

.toast i {
    font-size: 16px;
    flex-shrink: 0;
}

.toast.success i { color: var(--success); }
.toast.error i { color: var(--danger); }
.toast.warning i { color: var(--warning); }
.toast.info i { color: var(--info); }

.toast span {
    color: var(--text-1);
    font-size: 13px;
    font-weight: 500;
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

.confirm-box {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.confirm-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
}

.confirm-dialog {
    position: relative;
    background: var(--bg-1);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
    min-width: 320px;
    max-width: 90%;
    box-shadow: var(--shadow-4);
    text-align: center;
    animation: scaleIn 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes scaleIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.confirm-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: var(--warning-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.confirm-icon i {
    font-size: 28px;
    color: var(--warning);
}

.confirm-message {
    font-size: 15px;
    color: var(--text-1);
    margin-bottom: 24px;
    font-weight: 500;
    line-height: 1.5;
}

.confirm-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.confirm-buttons .btn {
    min-width: 80px;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-md);
}

/* ========== 空状态 ========== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-3);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.5;
}

.empty-text {
    font-size: 14px;
}

/* ========== 列表布局 ========== */
.two-col-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.list-item {
    display: flex;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-1);
}

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

.list-item-content {
    flex: 1;
    min-width: 0;
}

.list-item-title {
    font-weight: 500;
    color: var(--text-1);
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 14px;
}

.list-item-meta {
    font-size: 12px;
    color: var(--text-3);
    display: flex;
    gap: 14px;
}

/* ========== 设置页面 ========== */
.settings-section {
    margin-bottom: 28px;
}

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

.settings-section-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-1);
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-bg);
    display: inline-block;
}

/* ========== Mock标记 ========== */
.mock-badge {
    display: inline-block;
    padding: 2px 8px;
    background: var(--warning);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    border-radius: 4px;
    margin-left: 8px;
    vertical-align: middle;
    letter-spacing: 0.5px;
}

/* ========== 滚动条美化 ========== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-3);
    border-radius: 3px;
    transition: background 0.2s;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-4);
}

/* ========== 响应式 ========== */
@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .two-col-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 991px) {
    .admin-sidebar {
        transform: translateX(-100%);
    }
    
    .admin-sidebar.show {
        transform: translateX(0);
    }
    
    .admin-main {
        margin-left: 0;
    }
    
    .admin-header {
        padding: 0 16px;
    }
    
    .admin-content {
        padding: 16px;
    }
    
    .toggle-btn {
        display: block;
    }
    
    .header-time {
        display: none;
    }
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95vw;
        max-width: 95vw;
    }
    
    .card-header {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
    
    .card-actions {
        width: 100%;
    }
    
    .search-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-input {
        max-width: 100%;
    }
    
    .filter-select {
        width: 100%;
    }
}

/* =====================================================
   Bootstrap 兼容样式 - 让使用Bootstrap类名的页面也能正常显示
   ===================================================== */

/* --- 卡片 --- */
.card {
    background: var(--bg-1);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-1);
    border: 1px solid var(--border-1);
    overflow: hidden;
    margin-bottom: 20px;
}

.shadow-sm {
    box-shadow: var(--shadow-1) !important;
}

.border-0 {
    border: none !important;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-1);
    background: var(--bg-1);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header.bg-white {
    background: var(--bg-1) !important;
}

.border-bottom {
    border-bottom: 1px solid var(--border-1);
}

.card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-1);
    margin: 0;
}

.card-body {
    padding: 20px;
}

/* --- 按钮 --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 7px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    text-decoration: none;
    line-height: 1.5;
    white-space: nowrap;
    font-family: inherit;
    user-select: none;
}

.btn:active {
    transform: scale(0.98);
}

.btn-sm {
    padding: 5px 12px;
    font-size: 13px;
    border-radius: var(--radius-xs);
    gap: 4px;
}

.btn-lg {
    padding: 9px 20px;
    font-size: 15px;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

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

.btn-success {
    background: var(--success);
    color: #fff;
    border-color: var(--success);
}

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

.btn-warning {
    background: var(--warning);
    color: #fff;
    border-color: var(--warning);
}

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

.btn-danger {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
}

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

.btn-info {
    background: var(--info);
    color: #fff;
    border-color: var(--info);
}

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

.btn-secondary {
    background: var(--text-3);
    color: #fff;
    border-color: var(--text-3);
}

.btn-secondary:hover {
    background: var(--text-2);
    border-color: var(--text-2);
}

.btn-outline-secondary {
    background: var(--bg-1);
    border: 1px solid var(--border-3);
    color: var(--text-2);
}

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

.me-2 {
    margin-right: 8px;
}

/* --- 表格 --- */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.table thead {
    background: var(--bg-2);
}

.table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-2);
    border-bottom: 1px solid var(--border-2);
    font-size: 13px;
    white-space: nowrap;
}

.table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-1);
    color: var(--text-1);
    vertical-align: middle;
}

.table tbody tr {
    transition: background 0.15s ease;
}

.table-hover tbody tr:hover {
    background: var(--bg-2);
}

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

.bg-gray-50 {
    background: var(--bg-2) !important;
}

.bg-white {
    background: var(--bg-1) !important;
}

/* --- 徽章 --- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    line-height: 1.5;
}

.badge.bg-success {
    background: var(--success-bg) !important;
    color: var(--success) !important;
}

.badge.bg-danger {
    background: var(--danger-bg) !important;
    color: var(--danger) !important;
}

.badge.bg-warning {
    background: var(--warning-bg) !important;
    color: var(--warning) !important;
}

.badge.bg-info {
    background: var(--info-bg) !important;
    color: var(--info) !important;
}

.badge.bg-secondary {
    background: var(--bg-3) !important;
    color: var(--text-2) !important;
}

.badge.bg-primary {
    background: var(--primary-bg) !important;
    color: var(--primary) !important;
}

/* --- 表单 --- */
.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-3);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-1);
    background: var(--bg-1);
    font-family: inherit;
    line-height: 1.5;
    transition: all 0.2s ease;
    outline: none;
}

.form-control:hover {
    border-color: var(--primary-border);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(78, 110, 242, 0.1);
}

.form-control::placeholder {
    color: var(--text-4);
}

.form-select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-3);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-1);
    background: var(--bg-1);
    cursor: pointer;
    font-family: inherit;
    line-height: 1.5;
    transition: all 0.2s ease;
    outline: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 12 12' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M2.5 4.5L6 8L9.5 4.5' stroke='%2386909C' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}

.form-select:hover {
    border-color: var(--primary-border);
}

.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(78, 110, 242, 0.1);
}

.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    color: var(--text-2);
    font-size: 14px;
}

.form-check-input {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--primary);
}

.input-group {
    display: flex;
    width: 100%;
}

.input-group .form-control {
    flex: 1;
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.input-group .btn {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

/* --- 模态框 --- */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(2px);
    display: flex !important;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-dialog {
    max-width: 500px;
    width: 92vw;
    max-height: 88vh;
    margin: 0;
}

.modal-content {
    background: var(--bg-1);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: translateY(16px) scale(0.98);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-4);
    border: none;
}

.modal.show .modal-content {
    transform: translateY(0) scale(1);
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-1);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-1);
}

.modal-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-1);
    margin: 0;
}

.btn-close {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text-3);
    transition: all 0.2s ease;
    border-radius: var(--radius-xs);
    font-size: 16px;
    border: none;
    background: none;
    font-size: 0;
}

.btn-close::before {
    content: '\f00d';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 16px;
}

.btn-close:hover {
    color: var(--text-1);
    background: var(--bg-2);
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--border-1);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.modal-header .btn-close {
    padding: 0;
    margin: 0;
}

/* --- 工具类：flex --- */
.d-flex {
    display: flex !important;
}

.flex-wrap {
    flex-wrap: wrap !important;
}

.flex-grow-1 {
    flex-grow: 1 !important;
}

.align-items-center {
    align-items: center !important;
}

.justify-content-between {
    justify-content: space-between !important;
}

.justify-content-end {
    justify-content: flex-end !important;
}

.flex-column {
    flex-direction: column !important;
}

.gap-2 {
    gap: 8px !important;
}

.gap-3 {
    gap: 16px !important;
}

.gap-4 {
    gap: 24px !important;
}

/* --- 工具类：间距 --- */
.mb-0 {
    margin-bottom: 0 !important;
}

.mb-1 {
    margin-bottom: 4px !important;
}

.mb-2 {
    margin-bottom: 8px !important;
}

.mb-3 {
    margin-bottom: 16px !important;
}

.mb-4 {
    margin-bottom: 24px !important;
}

.mb-5 {
    margin-bottom: 32px !important;
}

.mt-0 {
    margin-top: 0 !important;
}

.mt-1 {
    margin-top: 4px !important;
}

.mt-2 {
    margin-top: 8px !important;
}

.mt-3 {
    margin-top: 16px !important;
}

.mt-4 {
    margin-top: 24px !important;
}

.mt-5 {
    margin-top: 32px !important;
}

.px-5 {
    padding-left: 20px !important;
    padding-right: 20px !important;
}

.py-3 {
    padding-top: 12px !important;
    padding-bottom: 12px !important;
}

.py-4 {
    padding-top: 16px !important;
    padding-bottom: 16px !important;
}

.py-5 {
    padding-top: 20px !important;
    padding-bottom: 20px !important;
}

.p-0 {
    padding: 0 !important;
}

.p-3 {
    padding: 16px !important;
}

.p-4 {
    padding: 24px !important;
}

.p-5 {
    padding: 32px !important;
}

/* --- 工具类：文字 --- */
.fw-bold {
    font-weight: 600 !important;
}

.font-medium {
    font-weight: 500 !important;
}

.font-semibold {
    font-weight: 600 !important;
}

.text-gray-500 {
    color: var(--text-3) !important;
}

.text-gray-600 {
    color: var(--text-2) !important;
}

.text-gray-700 {
    color: var(--text-1) !important;
}

.text-purple {
    color: #9254DE !important;
}

.text-blue {
    color: var(--primary) !important;
}

.text-green {
    color: var(--success) !important;
}

.text-red {
    color: var(--danger) !important;
}

.text-yellow {
    color: var(--warning) !important;
}

.text-purple {
    color: #9254DE !important;
}

.text-center {
    text-align: center !important;
}

.text-end {
    text-align: right !important;
}

.line-through {
    text-decoration: line-through !important;
}

.user-name {
    font-weight: 500;
    color: var(--text-1);
    margin-bottom: 2px;
    font-size: 14px;
}

.user-id {
    font-size: 12px;
    color: var(--text-3);
}

.post-stats {
    display: flex;
    gap: 14px;
    font-size: 12px;
    color: var(--text-3);
}

.post-stats span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* --- 分页 --- */
.pagination {
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: 4px;
}

.page-item .page-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    padding: 0 10px;
    border-radius: var(--radius-xs);
    font-size: 14px;
    color: var(--text-2);
    background: var(--bg-1);
    border: 1px solid var(--border-2);
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.page-item:hover .page-link {
    color: var(--primary);
    border-color: var(--primary);
}

.page-item.active .page-link {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.page-item.disabled .page-link {
    color: var(--text-4);
    cursor: not-allowed;
    border-color: var(--border-1);
    background: var(--bg-1);
}

.page-item.disabled:hover .page-link {
    color: var(--text-4);
    border-color: var(--border-1);
}

/* --- 工具类：宽度 --- */
.w-100 {
    width: 100% !important;
}

.min-vh-100 {
    min-height: 100vh;
}

/* --- 响应式辅助 --- */
@media (max-width: 768px) {
    .card-header {
        flex-direction: column;
        gap: 10px;
        align-items: flex-start;
    }
    
    .card-header .btn {
        width: auto;
    }
    
    .px-5 {
        padding-left: 16px !important;
        padding-right: 16px !important;
    }
    
    .d-flex.flex-wrap.gap-3.mb-5 {
        flex-direction: column;
        gap: 10px !important;
    }
    
    .input-group .form-select {
        max-width: 100% !important;
    }
}

/* --- 额外的工具类 --- */
.text-primary {
    color: var(--primary) !important;
}

.text-danger {
    color: var(--danger) !important;
}

.text-gray-400 {
    color: var(--text-3) !important;
}

.text-gray-300 {
    color: var(--text-3) !important;
}

a.text-primary:hover {
    color: var(--primary-hover) !important;
    text-decoration: underline;
}

.hover\:underline:hover,
a:hover .hover\:underline {
    text-decoration: underline !important;
}

.bg-red {
    background: var(--danger-bg) !important;
    color: var(--danger) !important;
}

.bg-yellow {
    background: var(--warning-bg) !important;
    color: var(--warning) !important;
}

.bg-purple {
    background: #F3E8FF !important;
    color: #9254DE !important;
}

.bg-blue {
    background: var(--primary-bg) !important;
    color: var(--primary) !important;
}

.bg-green {
    background: var(--success-bg) !important;
    color: var(--success) !important;
}

/* --- 卡片底部 --- */
.card-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-1);
    display: flex;
    justify-content: center;
    align-items: center;
}

/* --- 图片缩略图 --- */
.img-thumbnail {
    border: 1px solid var(--border-2);
    border-radius: var(--radius-sm);
    background: var(--bg-1);
    object-fit: cover;
}

/* --- 分页组件 --- */
.page-info {
    color: var(--text-3);
    font-size: 13px;
    margin-right: 16px;
}

.page-btn {
    min-width: 32px;
    height: 32px;
    padding: 0 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-xs);
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--bg-1);
    border: 1px solid var(--border-2);
    color: var(--text-2);
    font-size: 13px;
    font-weight: 500;
    margin: 0 2px;
}

.page-btn:hover:not(.disabled):not(.active) {
    color: var(--primary);
    border-color: var(--primary);
}

.page-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.page-btn.disabled {
    color: var(--text-4);
    cursor: not-allowed;
    background: var(--bg-2);
    border-color: var(--border-1);
}

/* --- 搜索按钮 --- */
.search-btn {
    padding: 8px 16px;
    font-size: 14px;
    font-family: inherit;
    line-height: 1.5;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 39px;
    box-sizing: border-box;
}

.search-btn:hover {
    background: var(--primary-hover);
}

.search-btn i {
    font-size: 14px;
}

/* --- 输入框样式 --- */
.form-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-3);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-1);
    background: var(--bg-1);
    font-family: inherit;
    line-height: 1.5;
    transition: all 0.2s ease;
    outline: none;
}

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

.form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(78, 110, 242, 0.1);
}

.form-input::placeholder {
    color: var(--text-4);
}

textarea.form-input {
    min-height: 100px;
    resize: vertical;
}

/* --- 危险徽章 --- */
.status-badge.danger {
    background: var(--danger-bg);
    color: var(--danger);
}

/* --- 表格图片 --- */
.data-table img {
    max-width: 100%;
    height: auto;
}

/* --- 链接样式 --- */
.data-table a {
    color: var(--primary);
    text-decoration: none;
}

.data-table a:hover {
    text-decoration: underline;
}

/* --- 搜索输入框 --- */
.search-input {
    width: 100%;
    max-width: 300px;
    min-width: 200px;
    padding: 8px 12px;
    border: 1px solid var(--border-3);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-1);
    background: var(--bg-1);
    font-family: inherit;
    line-height: 1.5;
    transition: all 0.2s ease;
    outline: none;
}

.search-input:hover {
    border-color: var(--primary-border);
}

.search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(78, 110, 242, 0.1);
}

.search-input::placeholder {
    color: var(--text-4);
}

/* --- 筛选下拉框 --- */
.filter-select {
    width: 130px;
    min-width: 120px;
    padding: 8px 32px 8px 12px;
    border: 1px solid var(--border-3);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-1);
    background: var(--bg-1);
    cursor: pointer;
    font-family: inherit;
    line-height: 1.5;
    transition: all 0.2s ease;
    outline: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 12 12' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M2.5 4.5L6 8L9.5 4.5' stroke='%2386909C' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    flex-shrink: 0;
}

.filter-select:hover {
    border-color: var(--primary-border);
}

.filter-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(78, 110, 242, 0.1);
}

/* --- 搜索栏容器 --- */
.search-bar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

/* --- 卡片操作按钮区 --- */
.card-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

/* --- 模态框表单标签 --- */
.modal-body label {
    display: block;
    margin-bottom: 6px;
    color: var(--text-1);
    font-weight: 500;
    font-size: 14px;
}

/* --- 模态框输入框 --- */
.modal-body .form-input,
.modal-body input[type="text"],
.modal-body input[type="email"],
.modal-body input[type="tel"],
.modal-body input[type="password"],
.modal-body input[type="number"],
.modal-body textarea,
.modal-body select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-3);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-1);
    background: var(--bg-1);
    font-family: inherit;
    line-height: 1.5;
    transition: all 0.2s ease;
    outline: none;
    margin-bottom: 16px;
}

.modal-body input:hover,
.modal-body textarea:hover,
.modal-body select:hover {
    border-color: var(--primary-border);
}

.modal-body input:focus,
.modal-body textarea:focus,
.modal-body select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(78, 110, 242, 0.1);
}

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

.modal-body select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 12 12' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M2.5 4.5L6 8L9.5 4.5' stroke='%2386909C' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* --- 表单组间距 --- */
.modal-body .form-group {
    margin-bottom: 18px;
}

.modal-body .form-group:last-child {
    margin-bottom: 0;
}

/* --- 单选按钮组 --- */
.form-check {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.form-check input[type="radio"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
    cursor: pointer;
}

.form-check label {
    margin-bottom: 0 !important;
    cursor: pointer;
    color: var(--text-2);
    font-weight: 400;
}

/* =====================================================
   登录页面样式
   ===================================================== */

body.login-page {
    margin: 0;
    padding: 0;
    min-height: 100vh !important;
    background: linear-gradient(135deg, #4E6EF2 0%, #7B5CF6 50%, #9F44D3 100%) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 20px !important;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif !important;
    color: #333 !important;
}

body.login-page * {
    box-sizing: border-box;
}

body.login-page .login-container {
    display: flex;
    width: 100%;
    max-width: 900px;
    min-height: 520px;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    animation: loginFadeIn 0.4s ease;
}

@keyframes loginFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

body.login-page .login-decor {
    width: 45%;
    background: linear-gradient(180deg, #4E6EF2 0%, #7B5CF6 100%);
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}

body.login-page .login-decor::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
}

body.login-page .login-decor::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -30%;
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    border-radius: 50%;
}

body.login-page .login-decor-content {
    position: relative;
    z-index: 1;
}

body.login-page .login-decor-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 32px;
}

body.login-page .login-decor-logo i {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

body.login-page .login-decor-logo h2 {
    font-size: 24px;
    font-weight: 700;
    margin: 0;
    letter-spacing: 1px;
}

body.login-page .login-decor-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.3;
}

body.login-page .login-decor-desc {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 40px;
}

body.login-page .login-decor-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

body.login-page .login-decor-feature {
    display: flex;
    align-items: center;
    gap: 12px;
}

body.login-page .login-decor-feature-icon {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

body.login-page .login-decor-feature-icon i {
    font-size: 16px;
}

body.login-page .login-decor-feature-text {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
}

body.login-page .login-box {
    width: 55%;
    padding: 48px 40px;
    display: flex;
    flex-direction: column;
}

body.login-page .login-logo {
    text-align: center;
    margin-bottom: 36px;
}

body.login-page .login-logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: #1D2129;
    margin: 0;
}

body.login-page .login-alert {
    background: #FFECE8;
    border: 1px solid #FFB4A8;
    border-radius: 10px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
    animation: alertShake 0.4s ease;
}

@keyframes alertShake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

body.login-page .login-alert i {
    color: #F53F3F;
    font-size: 16px;
    flex-shrink: 0;
}

body.login-page .login-alert span {
    color: #F53F3F;
    font-size: 14px;
    font-weight: 500;
}

body.login-page .login-form {
    flex: 1;
}

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

body.login-page .login-form .form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
    color: #1D2129;
}

body.login-page .login-form .form-label .required {
    color: #F53F3F;
    margin-left: 4px;
}

body.login-page .input-with-icon {
    position: relative;
}

body.login-page .input-with-icon .input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: #86909C;
    font-size: 15px;
    transition: color 0.2s;
}

body.login-page .input-with-icon:focus-within .input-icon {
    color: #4E6EF2;
}

body.login-page input.form-input {
    width: 100%;
    padding: 0 16px 0 44px !important;
    height: 46px !important;
    font-size: 15px !important;
    border-radius: 12px !important;
    border: 1.5px solid #E5E6EB !important;
    background: #fff !important;
    color: #1D2129 !important;
    transition: all 0.25s ease !important;
    outline: none !important;
    line-height: 1.5 !important;
    font-family: inherit !important;
}

body.login-page input.form-input:hover {
    border-color: #ADC6FF !important;
}

body.login-page input.form-input:focus {
    border-color: #4E6EF2 !important;
    box-shadow: 0 0 0 4px rgba(78, 110, 242, 0.12) !important;
}

body.login-page input.form-input::placeholder {
    color: #C9CDD4 !important;
}

body.login-page .captcha-group {
    display: flex;
    gap: 12px;
    align-items: center;
}

body.login-page .captcha-group .input-with-icon {
    flex: 1;
}

body.login-page .captcha-img {
    height: 46px;
    border-radius: 12px;
    cursor: pointer;
    border: 1.5px solid #E5E6EB;
    transition: all 0.2s;
    flex-shrink: 0;
}

body.login-page .captcha-img:hover {
    border-color: #4E6EF2;
    transform: scale(1.02);
}

body.login-page .btn,
body.login-page .btn-primary,
body.login-page .btn-block {
    width: 100%;
    height: 48px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 12px;
    margin-top: 8px;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: #4E6EF2;
    color: #fff;
    border: none;
    cursor: pointer;
    padding: 0;
    line-height: 1.5;
    white-space: nowrap;
    user-select: none;
    text-decoration: none;
}

body.login-page .btn:hover,
body.login-page .btn-primary:hover,
body.login-page .btn-block:hover {
    background: #3A5BE0;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(78, 110, 242, 0.35);
    border-color: #3A5BE0;
}

body.login-page .btn:active,
body.login-page .btn-primary:active,
body.login-page .btn-block:active {
    transform: translateY(0);
    border-color: #2B4BCC;
}

body.login-page .login-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid #F2F3F5;
}

body.login-page .login-footer-text {
    font-size: 13px;
    color: #86909C;
}

/* --- 响应式 --- */
@media (max-width: 768px) {
    body.login-page .login-container {
        flex-direction: column;
        min-height: auto;
        max-width: 420px;
    }
    
    body.login-page .login-decor {
        width: 100%;
        padding: 32px;
        min-height: 200px;
    }
    
    body.login-page .login-decor-title {
        font-size: 24px;
    }
    
    body.login-page .login-decor-desc {
        margin-bottom: 24px;
    }
    
    body.login-page .login-decor-features {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 12px;
    }
    
    body.login-page .login-decor-feature {
        flex: 1;
        min-width: calc(50% - 6px);
    }
    
    body.login-page .login-box {
        width: 100%;
        padding: 32px;
    }
    
    body.login-page .login-logo {
        margin-bottom: 28px;
    }
    
    body.login-page .login-form .form-group {
        margin-bottom: 18px;
    }
    
    body.login-page .captcha-group {
        flex-direction: column;
    }
    
    body.login-page .captcha-group .input-with-icon {
        width: 100%;
    }
    
    body.login-page .captcha-img {
        width: 100%;
        object-fit: cover;
    }
}

/* =====================================================
   图片上传和预览样式
   ===================================================== */

.upload-area {
    margin-bottom: 12px;
}

.upload-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--bg-3);
    border: 2px dashed var(--border-2);
    border-radius: var(--radius-md);
    color: var(--text-2);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    user-select: none;
}

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

.upload-btn i {
    font-size: 16px;
}

.images-preview-area {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.image-item {
    position: relative;
    width: 90px;
    height: 90px;
    border-radius: 8px;
    overflow: hidden;
    border: 2px solid var(--border-2);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.image-preview-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-remove {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 24px;
    height: 24px;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    opacity: 0;
}

.image-item:hover .image-remove {
    opacity: 1;
}

.image-remove:hover {
    background: var(--danger);
    transform: scale(1.1);
}

.images-preview {
    display: flex;
    align-items: center;
    gap: 6px;
}

.image-thumb {
    width: 50px;
    height: 50px;
    border-radius: 6px;
    object-fit: cover;
    cursor: pointer;
    border: 2px solid var(--border-2);
    transition: all 0.3s;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
}

.image-thumb:hover {
    transform: scale(1.15);
    border-color: var(--primary);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.images-more {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--bg-3);
    border-radius: 6px;
    font-size: 14px;
    color: var(--text-2);
    border: 2px solid var(--border-2);
    font-weight: 500;
}

.post-images-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4px;
    max-width: 220px;
}

.post-image-item {
    position: relative;
    width: 50px;
    height: 50px;
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    border: 2px solid var(--border-2);
    transition: all 0.25s ease;
}

.post-image-item:hover {
    border-color: var(--primary);
    transform: scale(1.08);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.post-image-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.post-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0);
    transition: background 0.25s ease;
}

.post-image-item:hover .post-image-overlay {
    background: rgba(0, 0, 0, 0.15);
}

.post-image-more {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--bg-3);
    border-radius: 6px;
    font-size: 14px;
    color: var(--text-2);
    border: 2px dashed var(--border-2);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
}

.post-image-more:hover {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--primary);
    color: var(--primary);
}

.lightbox-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-50%) scale(1.1);
}

.lightbox-content {
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.lightbox-counter {
    position: absolute;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.6);
    padding: 8px 20px;
    border-radius: 20px;
    color: #fff;
    font-size: 14px;
    font-weight: 500;
}

.lightbox-divider {
    margin: 0 6px;
    opacity: 0.6;
}

.icon-selector {
    margin-top: 8px;
}

.icon-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.icon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px 12px;
    border: 2px solid var(--border-2);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--bg-1);
}

.icon-item:hover {
    border-color: var(--danger);
    background: var(--danger-bg);
}

.icon-item.selected {
    border-color: var(--danger);
    background: var(--danger-bg);
}

.icon-item i {
    font-size: 32px;
    color: var(--danger);
    margin-bottom: 8px;
}

.icon-item span {
    font-size: 12px;
    color: var(--text-2);
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.5;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.5;
}