/* ========================================
   TMGM 后台管理 - 完整样式
   布局：左侧固定导航，右侧自适应内容
   ======================================== */

/* ----- 全局重置 ----- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Microsoft YaHei", sans-serif;
    background: #f0f2f5;
    color: #333;
    font-size: 14px;
}

a {
    text-decoration: none;
    color: #00A6E0;
}

/* ----- 后台主容器 (flex 布局) ----- */
.admin-container {
    display: flex;
    min-height: 100vh;
}

/* ----- 左侧导航侧边栏 ----- */
.admin-sidebar {
    width: 220px;
    min-height: 100vh;
    background: #1a2332;
    color: #fff;
    padding: 20px 0;
    position: sticky;
    top: 0;
    align-self: flex-start;
    flex-shrink: 0;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
}

.admin-sidebar h2 {
    color: #fff;
    text-align: center;
    font-size: 20px;
    font-weight: 300;
    padding: 0 0 20px 0;
    margin: 0 20px 20px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    letter-spacing: 2px;
}

.admin-sidebar h2 span {
    color: #00A6E0;
    font-weight: 700;
}

.admin-sidebar ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.admin-sidebar ul li {
    margin: 0;
    padding: 0;
}

.admin-sidebar ul li a {
    display: block;
    padding: 12px 24px;
    color: rgba(255, 255, 255, 0.7);
    border-left: 3px solid transparent;
    transition: all 0.2s;
    font-size: 14px;
}

.admin-sidebar ul li a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    border-left-color: #00A6E0;
}

.admin-sidebar ul li a.active {
    background: rgba(0, 166, 224, 0.15);
    color: #fff;
    border-left-color: #00A6E0;
}

/* ----- 右侧主内容区 ----- */
.admin-main {
    flex: 1;
    padding: 30px;
    background: #f0f2f5;
    min-height: 100vh;
}

.admin-main h1 {
    font-size: 24px;
    font-weight: 600;
    color: #1a2332;
    margin-bottom: 20px;
}

.admin-main .card {
    background: #fff;
    border-radius: 8px;
    padding: 20px 25px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    margin-bottom: 20px;
}

/* ----- 后台表格样式 ----- */
.admin-table {
    width: 100%;
    background: #fff;
    border-collapse: collapse;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.admin-table th,
.admin-table td {
    padding: 12px 18px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.admin-table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #1a2332;
}

.admin-table tr:hover {
    background: #f8f9fa;
}

/* ----- 后台表单样式 ----- */
.admin-form .form-group {
    margin-bottom: 20px;
}

.admin-form label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    color: #1a2332;
}

.admin-form input[type="text"],
.admin-form input[type="password"],
.admin-form input[type="email"],
.admin-form input[type="url"],
.admin-form select,
.admin-form textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.admin-form input:focus,
.admin-form select:focus,
.admin-form textarea:focus {
    border-color: #00A6E0;
    outline: none;
}

.admin-form textarea {
    min-height: 120px;
    font-family: inherit;
}

/* ----- 按钮 ----- */
.btn {
    display: inline-block;
    padding: 10px 24px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.2s;
    text-decoration: none;
    color: #fff;
}

.btn-primary {
    background: #00A6E0;
    color: #fff;
}

.btn-primary:hover {
    background: #0088b8;
}

.btn-danger {
    background: #dc3545;
    color: #fff;
}

.btn-danger:hover {
    background: #c82333;
}

.btn-success {
    background: #28a745;
    color: #fff;
}

.btn-success:hover {
    background: #1e7e34;
}

.btn-secondary {
    background: #6c757d;
    color: #fff;
}

.btn-secondary:hover {
    background: #5a6268;
}

/* ----- 消息提示 ----- */
.message {
    padding: 12px 18px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.message.info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* ----- 登录页面专用 ----- */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #f0f2f5;
}

.login-box {
    background: #fff;
    padding: 40px 50px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    width: 380px;
}

.login-box h1 {
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    color: #1a2332;
    margin-bottom: 8px;
}

.login-box .subtitle {
    text-align: center;
    color: #888;
    font-size: 14px;
    margin-bottom: 30px;
}

.login-box input[type="text"],
.login-box input[type="password"] {
    width: 100%;
    padding: 12px 16px;
    margin-bottom: 16px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    box-sizing: border-box;
}

.login-box button {
    width: 100%;
    padding: 12px;
    background: #00A6E0;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
}

.login-box button:hover {
    background: #0088b8;
}

/* ----- 响应式适配 ----- */
@media (max-width: 768px) {
    .admin-container {
        flex-direction: column;
    }

    .admin-sidebar {
        width: 100%;
        min-height: auto;
        position: relative;
        padding: 10px 0;
    }

    .admin-sidebar ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        padding: 0 10px;
    }

    .admin-sidebar ul li a {
        padding: 8px 14px;
        border-left: none;
        border-bottom: 3px solid transparent;
        font-size: 13px;
    }

    .admin-sidebar ul li a:hover {
        border-left-color: transparent;
        border-bottom-color: #00A6E0;
    }

    .admin-main {
        padding: 15px;
    }

    .admin-table {
        font-size: 13px;
        overflow-x: auto;
        display: block;
    }

    .login-box {
        width: 90%;
        padding: 30px 20px;
        margin: 20px;
    }
}