/* 管理后台样式 */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f5f7fa;
    color: #333;
}

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

/* 头部 */
.admin-header {
    background: #fff;
    padding: 20px 40px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.admin-header h1 {
    font-size: 24px;
    color: #333;
}

.header-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}

.header-actions span {
    color: #666;
    font-size: 14px;
}

/* 主内容区 */
.admin-main {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
}

/* 区块 */
section {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

section h2 {
    font-size: 20px;
    margin-bottom: 20px;
    color: #333;
}

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

.form-row {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
}

label {
    display: block;
    color: #555;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
}

input[type="text"],
input[type="file"],
textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s;
}

input[type="text"]:focus,
textarea:focus {
    outline: none;
    border-color: #667eea;
}

textarea {
    resize: vertical;
    font-family: inherit;
}

.form-hint {
    display: block;
    margin-top: 6px;
    color: #999;
    font-size: 12px;
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #f0f0f0;
    color: #666;
}

.btn-secondary:hover {
    background: #e5e5e5;
}

.btn-small {
    padding: 6px 12px;
    font-size: 12px;
    border-radius: 4px;
}

.btn-info {
    background: #3b82f6;
    color: #fff;
}

.btn-info:hover {
    background: #2563eb;
}

.btn-danger {
    background: #ef4444;
    color: #fff;
}

.btn-danger:hover {
    background: #dc2626;
}

/* 表格 */
.apps-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.apps-table thead {
    background: #f9fafb;
}

.apps-table th,
.apps-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}

.apps-table th {
    font-weight: 600;
    color: #555;
    font-size: 13px;
}

.apps-table td {
    font-size: 14px;
}

.apps-table td.description {
    max-width: 250px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.apps-table tbody tr:hover {
    background: #f9fafb;
}

.apps-table td:last-child {
    white-space: nowrap;
}

.apps-table .btn-small {
    margin-right: 6px;
}

/* 提示信息 */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.alert-error {
    background: #fee;
    color: #c33;
    border: 1px solid #fca5a5;
}

/* 空状态 */
.empty-state {
    text-align: center;
    color: #999;
    padding: 40px;
    font-size: 14px;
}

/* Logo 预览 */
.logo-preview {
    margin: 10px 0;
    padding: 20px;
    background: #f9fafb;
    border-radius: 8px;
    text-align: center;
}

.logo-preview img {
    display: block;
    margin: 0 auto;
}

/* 响应式 */
@media (max-width: 768px) {
    .admin-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .apps-table {
        font-size: 12px;
    }

    .apps-table th,
    .apps-table td {
        padding: 8px;
    }
}