/*
 * 后台美化 CSS - v2.0
 */

:root {
    --primary-color: #1890ff;
    --primary-color-hover: #40a9ff;
    --success-color: #52c41a;
    --warning-color: #faad14;
    --danger-color: #f5222d;
    --text-color: #e0e0e0;
    --text-color-secondary: #a0a0a0;
    --border-color: #303030;
    --background-color: #141414;
    --sidebar-bg: #1f1f1f;
    --content-bg: #262626;
    --sidebar-text: rgba(255, 255, 255, 0.65);
    --sidebar-text-active: #fff;
    --sidebar-active-bg: var(--primary-color);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    font-size: 14px;
    line-height: 1.5715;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color 0.3s;
}

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

/* 布局 */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 200px;
    height: 100vh;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    transition: width 0.3s, transform 0.3s;
    z-index: 1000;
}



.sidebar-header {
    padding: 16px;
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-menu {
    list-style: none;
    margin-top: 16px;
}

.sidebar-menu li a {
    display: block;
    padding: 12px 20px;
    color: var(--sidebar-text);
    transition: background 0.3s, color 0.3s;
}

.sidebar-menu li.active a, .sidebar-menu li a:hover {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-text-active);
}

.main-content {
    margin-left: 200px;
    transition: margin-left 0.3s;
}

.header {
    background: rgba(31,31,31,0.9);
    backdrop-filter: blur(10px);
    padding: 0 24px;
    height: 64px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    box-shadow: 0 8px 30px rgba(0,0,0,0.35);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header a {
    color: var(--text-color-secondary);
}

.content {
    padding: 24px;
    margin: 24px;
    background: var(--content-bg);
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.06);
    box-shadow: 0 16px 50px rgba(0,0,0,0.35);
    min-height: calc(100vh - 112px);
}

.content h1 {
    font-size: 20px;
    margin-bottom: 24px;
}

/* Toast Notifications */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 12px 20px;
    border-radius: 4px;
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transform: translateX(120%);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast-success {
    background-color: var(--success-color);
}

.toast-error {
    background-color: var(--danger-color);
}

.toast-info {
    background-color: var(--primary-color);
}

/* Confirm Modal */
.confirm-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
}

.confirm-modal-content {
    background: rgba(25,25,25,0.96);
    border-radius: 14px;
    padding: 22px;
    width: 90%;
    max-width: 440px;
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 18px 60px rgba(0, 0, 0, 0.55);
}

.confirm-modal-body {
    font-size: 16px;
    margin-bottom: 24px;
    line-height: 1.6;
}

.confirm-modal-footer {
    text-align: right;
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}


/* 卡片与表格 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 24px;
}

.stat-card {
    background: #fff;
    padding: 20px 24px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.stat-label {
    color: var(--text-color-secondary);
    font-size: 14px;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 30px;
    font-weight: 600;
    color: var(--text-color);
}

.table-container {
    background: rgba(255,255,255,0.02);
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.06);
    overflow: hidden;
}

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

.table th, .table td {
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    background: rgba(255,255,255,0.03);
    font-weight: 700;
    color: var(--text-color);
}

.table td {
    color: var(--text-color);
}

.table tr:hover td {
    background: rgba(255,255,255,0.03);
}

/* 表单 */
.form-container {
    max-width: 800px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-color);
    font-weight: 500;
}

.form-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid rgba(255,255,255,0.10);
    border-radius: 10px;
    font-size: 14px;
    transition: all 0.2s;
    background: rgba(255,255,255,0.03);
    color: var(--text-color);
}

.form-input::placeholder {
    color: rgba(255,255,255,0.35);
}

.form-input:focus {
    border-color: rgba(24,144,255,0.7);
    box-shadow: 0 0 0 3px rgba(24, 144, 255, 0.18);
    outline: 0;
}

.form-group small {
    display: block;
    margin-top: 4px;
    color: var(--text-color-secondary);
}

/* 按钮 */
.btn {
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.3s;
    display: inline-block;
    text-align: center;
}

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

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

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

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

.btn-default {
    background: rgba(255,255,255,0.03);
    border-color: rgba(255,255,255,0.10);
    color: var(--text-color);
}

.btn-default:hover {
    border-color: rgba(24,144,255,0.7);
    color: var(--primary-color);
}

/* 错误提示 */
.error {
    color: var(--danger-color);
    margin-top: 10px;
}

.admin-footer {
    margin: 18px 24px 24px;
    text-align: center;
    color: rgba(255,255,255,0.35);
    font-size: 12px;
}

    font-size: 14px;
}

.alert-success {
    background: #f6ffed;
    border: 1px solid #b7eb8f;
    color: var(--success-color);
    padding: 10px 15px;
    border-radius: 4px;
    margin-bottom: 24px;
}