/* 后台管理系统样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --admin-primary: #3b82f6;
    --admin-secondary: #60a5fa;
    --admin-bg: linear-gradient(135deg, #6b7280 0%, #9ca3af 50%, #f3f4f6 100%);
    --admin-glass-bg: rgba(255, 255, 255, 0.1);
    --admin-glass-border: rgba(255, 255, 255, 0.2);
    --admin-glass-shadow: 0 8px 32px 0 rgba(55, 65, 81, 0.25);
    --admin-glass-backdrop: blur(10px);
    --admin-sidebar: rgba(30, 58, 138, 0.8);
    --admin-text: #1e293b;
    --admin-text-light: rgba(255, 255, 255, 0.9);
    --admin-border: rgba(255, 255, 255, 0.2);
    --admin-success: #10b981;
    --admin-danger: #ef4444;
    --admin-warning: #f59e0b;
    --admin-info: #3b82f6;
    --admin-hover-bg: rgba(255, 255, 255, 0.15);
}

body.admin-login {
    background: linear-gradient(135deg, #6b7280 0%, #9ca3af 50%, #f3f4f6 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.login-box {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header i {
    font-size: 3rem;
    color: #4b5563;
    margin-bottom: 1rem;
}

.login-header h2 {
    color: #1f2937;
    font-size: 1.8rem;
}

.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-error {
    background: rgba(254, 226, 226, 0.6);
    color: #dc2626;
    border: 1px solid rgba(239, 68, 68, 0.4);
    backdrop-filter: blur(10px);
}

.alert-success {
    background: rgba(209, 250, 229, 0.6);
    color: #059669;
    border: 1px solid rgba(16, 185, 129, 0.4);
    backdrop-filter: blur(10px);
}

.login-form .form-group {
    margin-bottom: 1.5rem;
}

.login-form label {
    display: block;
    margin-bottom: 0.5rem;
    color: #1f2937;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.login-form input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--admin-border);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s;
    background: rgba(255, 255, 255, 0.4);
    color: #1f2937;
}

.login-form input::placeholder {
    color: #6b7280;
}

.login-form input:focus {
    outline: none;
    border-color: #4b5563;
    background: rgba(255, 255, 255, 0.5);
    box-shadow: 0 0 0 3px rgba(75, 85, 99, 0.2);
    color: #1f2937;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: var(--admin-primary);
    color: white;
    width: 100%;
    justify-content: center;
}

.btn-primary:hover {
    background: #2563eb;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

/* 后台主界面 */
body.admin-body {
    background: var(--admin-bg);
    background-attachment: fixed;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--admin-text);
    min-height: 100vh;
}

.admin-container {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 260px;
    background: var(--admin-glass-bg);
    backdrop-filter: var(--admin-glass-backdrop);
    -webkit-backdrop-filter: var(--admin-glass-backdrop);
    border-right: 1px solid var(--admin-glass-border);
    color: #1f2937;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    box-shadow: var(--admin-glass-shadow);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--admin-glass-border);
}

.sidebar-header h2 {
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #1f2937;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    color: #1f2937;
    text-decoration: none;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #1f2937;
    transform: translateX(5px);
}

.nav-item.active {
    background: rgba(75, 85, 99, 0.3);
    color: #1f2937;
    border-left-color: #4b5563;
}

.nav-item i {
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--admin-glass-border);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.btn-view-site,
.btn-logout {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    text-decoration: none;
    text-align: center;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-view-site {
    background: rgba(255, 255, 255, 0.2);
    color: #1f2937;
    border: 1px solid var(--admin-glass-border);
}

.btn-view-site:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    color: #1f2937;
}

.btn-logout {
    background: rgba(239, 68, 68, 0.2);
    color: #dc2626;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-logout:hover {
    background: rgba(239, 68, 68, 0.3);
    color: white;
    transform: translateY(-2px);
}

.admin-main {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
}

.admin-header {
    background: var(--admin-glass-bg);
    backdrop-filter: var(--admin-glass-backdrop);
    -webkit-backdrop-filter: var(--admin-glass-backdrop);
    border-bottom: 1px solid var(--admin-glass-border);
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--admin-glass-shadow);
    color: #1f2937;
}

.admin-header h1 {
    font-size: 1.5rem;
    color: #1f2937;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #1f2937;
    font-weight: 500;
}

.admin-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    background: transparent;
}

/* 卡片样式 */
.card {
    background: var(--admin-glass-bg);
    backdrop-filter: var(--admin-glass-backdrop);
    -webkit-backdrop-filter: var(--admin-glass-backdrop);
    border: 1px solid var(--admin-glass-border);
    border-radius: 20px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--admin-glass-shadow);
    color: #1f2937;
}

.card-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--admin-glass-border);
}

.card-header h3 {
    font-size: 1.2rem;
    color: #1f2937;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #1f2937;
    font-weight: 500;
}

/* 包含复选框的label特殊样式 */
.form-group label:has(input[type="checkbox"]) {
    display: flex !important;
    align-items: center;
    margin-bottom: 0;
    cursor: pointer;
    gap: 0;
}

.form-group input:not([type="checkbox"]):not([type="radio"]),
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--admin-glass-border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s;
    background: rgba(255, 255, 255, 0.4);
    color: #1f2937;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* 复选框样式 - 增大尺寸 */
.form-group input[type="checkbox"] {
    width: 1.5rem !important;
    height: 1.5rem !important;
    min-width: 1.5rem !important;
    min-height: 1.5rem !important;
    margin-right: 0.75rem !important;
    cursor: pointer;
    border: 2px solid var(--admin-glass-border) !important;
    border-radius: 6px !important;
    background: rgba(255, 255, 255, 0.4) !important;
    backdrop-filter: blur(10px) !important;
    -webkit-backdrop-filter: blur(10px) !important;
    transition: all 0.3s;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    position: relative;
    flex-shrink: 0;
    padding: 0 !important;
}

.form-group input[type="checkbox"]:checked {
    background: rgba(75, 85, 99, 0.6) !important;
    border-color: #4b5563 !important;
}

.form-group input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #1f2937;
    font-size: 1rem;
    font-weight: bold;
    line-height: 1;
}

.form-group input[type="checkbox"]:hover {
    border-color: #4b5563 !important;
    background: rgba(255, 255, 255, 0.5) !important;
}

.form-group input[type="checkbox"]:checked:hover {
    background: rgba(75, 85, 99, 0.7) !important;
}

/* 包含复选框的label样式已在上方定义 */

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #6b7280;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #4b5563;
    background: rgba(255, 255, 255, 0.5);
    box-shadow: 0 0 0 3px rgba(75, 85, 99, 0.2);
    color: #1f2937;
}

/* 移除重复的表单样式定义 */

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

/* 按钮样式 */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-success {
    background: var(--admin-success);
    color: white;
    border: 1px solid rgba(16, 185, 129, 0.3);
    backdrop-filter: blur(10px);
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.btn-danger {
    background: var(--admin-danger);
    color: white;
    border: 1px solid rgba(239, 68, 68, 0.3);
    backdrop-filter: blur(10px);
}

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

.btn-info {
    background: var(--admin-glass-bg);
    backdrop-filter: var(--admin-glass-backdrop);
    -webkit-backdrop-filter: var(--admin-glass-backdrop);
    color: #1f2937;
    border: 1px solid var(--admin-glass-border);
}

.btn-info:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: #4b5563;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(75, 85, 99, 0.2);
    color: #1f2937;
}

.btn-secondary {
    background: var(--admin-glass-bg);
    backdrop-filter: var(--admin-glass-backdrop);
    -webkit-backdrop-filter: var(--admin-glass-backdrop);
    color: #1f2937;
    border: 1px solid var(--admin-glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: #4b5563;
    transform: translateY(-2px);
    color: #1f2937;
}

/* 表格样式 */
.table {
    width: 100%;
    border-collapse: collapse;
    border-radius: 12px;
    overflow: hidden;
}

.table-actions {
    display: flex;
    gap: 0.5rem;
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.stat-icon.primary {
    background: var(--admin-primary);
}

.stat-icon.success {
    background: var(--admin-success);
}

.stat-icon.warning {
    background: var(--admin-warning);
}

.stat-icon.info {
    background: var(--admin-info);
}

.stat-content h3 {
    font-size: 2rem;
    margin-bottom: 0.25rem;
    color: #1f2937;
}

.stat-content p {
    color: #374151;
    font-size: 0.9rem;
}

/* 上传区域 */
.upload-area {
    border: 2px dashed var(--admin-glass-border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: #1f2937;
}

.upload-area:hover {
    border-color: #4b5563;
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.upload-area.has-image {
    border-style: solid;
    background: rgba(255, 255, 255, 0.08);
}

.upload-preview {
    max-width: 150px;
    max-height: 150px;
    width: auto;
    height: auto;
    object-fit: contain;
    margin: 0 auto 1rem;
    border-radius: 8px;
    display: block;
}

/* 图标选择器 */
.icon-selector {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
    gap: 0.5rem;
    max-height: 300px;
    overflow-y: auto;
    padding: 1rem;
    background: var(--admin-glass-bg);
    backdrop-filter: var(--admin-glass-backdrop);
    -webkit-backdrop-filter: var(--admin-glass-backdrop);
    border: 1px solid var(--admin-glass-border);
    border-radius: 8px;
}

.icon-option {
    padding: 0.75rem;
    text-align: center;
    border: 2px solid var(--admin-glass-border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    background: var(--admin-glass-bg);
    backdrop-filter: var(--admin-glass-backdrop);
    -webkit-backdrop-filter: var(--admin-glass-backdrop);
    color: #1f2937;
}

.icon-option:hover {
    border-color: #4b5563;
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.icon-option.selected {
    border-color: #4b5563;
    background: rgba(75, 85, 99, 0.4);
    color: #1f2937;
}

.icon-option i {
    font-size: 1.5rem;
}

/* 图标选择器模态框 */
#icon-selector-modal,
.icon-selector-modal {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background: rgba(0, 0, 0, 0.7) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    display: none;
    align-items: center !important;
    justify-content: center !important;
    z-index: 99999 !important;
    padding: 1rem !important;
    box-sizing: border-box !important;
    margin: 0 !important;
}

#icon-selector-modal[style*="flex"],
.icon-selector-modal[style*="flex"] {
    display: flex !important;
}

#icon-selector-modal .icon-selector-content,
.icon-selector-content {
    background: rgba(255, 255, 255, 0.4) !important;
    backdrop-filter: blur(20px) !important;
    -webkit-backdrop-filter: blur(20px) !important;
    border: 1px solid rgba(107, 114, 128, 0.3) !important;
    border-radius: 20px !important;
    padding: 2rem !important;
    max-width: 800px !important;
    width: 90% !important;
    max-height: 90vh !important;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2) !important;
    display: flex !important;
    flex-direction: column !important;
    position: relative !important;
    margin: 0 auto !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
}

.icon-selector-header {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    margin-bottom: 1.5rem !important;
    padding-bottom: 1rem !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2) !important;
    flex-shrink: 0 !important;
}

.icon-selector-header h3 {
    color: #1f2937 !important;
    margin: 0 !important;
    font-size: 1.25rem !important;
}

.icon-selector-close {
    background: none !important;
    border: none !important;
    font-size: 2rem !important;
    color: #1f2937 !important;
    cursor: pointer !important;
    line-height: 1 !important;
    opacity: 0.7 !important;
    transition: opacity 0.3s !important;
    padding: 0 !important;
}

.icon-selector-close:hover {
    opacity: 1 !important;
}

.icon-selector-search {
    margin-bottom: 1.5rem !important;
    flex-shrink: 0 !important;
}

.icon-selector-search input {
    width: 100% !important;
    padding: 0.75rem 1rem !important;
    border: 2px solid rgba(107, 114, 128, 0.3) !important;
    border-radius: 8px !important;
    background: rgba(255, 255, 255, 0.4) !important;
    color: #1f2937 !important;
    font-size: 1rem !important;
    box-sizing: border-box !important;
}

.icon-selector-search input:focus {
    outline: none !important;
    border-color: #4b5563 !important;
    background: rgba(255, 255, 255, 0.5) !important;
    color: #1f2937 !important;
}

.icon-selector-search input::placeholder {
    color: #6b7280 !important;
}

#icon-selector-grid,
.icon-selector-grid {
    display: grid !important;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)) !important;
    gap: 0.75rem !important;
    max-height: 500px !important;
    overflow-y: auto !important;
    padding: 0.5rem !important;
    flex: 1 !important;
}

.icon-option-modal {
    background: rgba(255, 255, 255, 0.3) !important;
    backdrop-filter: blur(10px) !important;
    -webkit-backdrop-filter: blur(10px) !important;
    border: 2px solid rgba(107, 114, 128, 0.3) !important;
    border-radius: 12px !important;
    padding: 1rem 0.5rem !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    gap: 0.5rem !important;
    cursor: pointer !important;
    transition: all 0.3s !important;
    text-align: center !important;
    min-height: 80px !important;
    justify-content: center !important;
}

.icon-option-modal:hover {
    background: rgba(255, 255, 255, 0.4) !important;
    border-color: #4b5563 !important;
    transform: translateY(-2px) !important;
}

.icon-option-modal.selected {
    background: rgba(75, 85, 99, 0.5) !important;
    border-color: #4b5563 !important;
    box-shadow: 0 4px 12px rgba(75, 85, 99, 0.3) !important;
}

.icon-option-modal i {
    font-size: 1.5rem !important;
    color: #1f2937 !important;
}

.icon-option-modal.selected i {
    color: #1f2937 !important;
}

.icon-option-modal span {
    font-size: 0.7rem !important;
    color: #374151 !important;
    word-break: break-all !important;
    max-width: 100% !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
}

.icon-selector-grid .no-results {
    grid-column: 1 / -1 !important;
    text-align: center !important;
    padding: 2rem !important;
    color: #6b7280 !important;
    font-size: 0.9rem !important;
}

.icon-option-modal.selected span {
    color: #1f2937 !important;
    font-weight: 600;
}

/* 更新表格样式 */
.table {
    background: var(--admin-glass-bg);
    backdrop-filter: var(--admin-glass-backdrop);
    -webkit-backdrop-filter: var(--admin-glass-backdrop);
    border: 1px solid var(--admin-glass-border);
    color: #1f2937;
}

.table thead {
    background: rgba(255, 255, 255, 0.2);
}

.table th {
    color: #1f2937;
    border-bottom: 1px solid var(--admin-glass-border);
}

.table td {
    border-bottom: 1px solid var(--admin-glass-border);
    color: #1f2937;
}

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

/* 表单样式已在上面定义，这里不再重复 */

/* 更新统计卡片 */
.stat-card {
    background: var(--admin-glass-bg);
    backdrop-filter: var(--admin-glass-backdrop);
    -webkit-backdrop-filter: var(--admin-glass-backdrop);
    border: 1px solid var(--admin-glass-border);
    color: #1f2937;
}

.stat-content h3 {
    color: #1f2937;
}

.stat-content p {
    color: #374151;
}

/* 更新上传区域 */
.upload-area {
    background: rgba(255, 255, 255, 0.2);
    border: 2px dashed var(--admin-glass-border);
    color: #1f2937;
}

.upload-area:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: #4b5563;
}

/* 响应式 */
@media (max-width: 768px) {
    .admin-sidebar {
        width: 100%;
        height: auto;
        position: relative;
    }

    .admin-main {
        margin-left: 0;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }
    
    .icon-selector-grid {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    }
}