/* ===================================================
   玄易堂后台管理系统样式
   =================================================== */
:root {
    --gold: #C9A84C;
    --gold-light: #DFC078;
    --gold-dark: #A07D2E;
    --gold-pale: #F5ECD7;
    --dark: #1A1208;
    --dark2: #2D1F08;
    --sidebar-bg: #1A1208;
    --sidebar-width: 220px;
    --white: #FFFFFF;
    --cream: #FAFAF8;
    --border: #E8D5A3;
    --text: #1A1208;
    --text-muted: #8B7355;
    --success: #2E7D32;
    --danger: #C62828;
    --warning: #F57F17;
    --info: #1565C0;
    --font: 'Noto Serif SC', Georgia, serif;
    --radius: 4px;
    --shadow: 0 2px 12px rgba(26,18,8,0.08);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; }
body { font-family: var(--font); background: var(--cream); color: var(--text); line-height: 1.6; }
a { color: var(--gold-dark); text-decoration: none; }
a:hover { color: var(--gold); }
ul { list-style: none; }
img { max-width: 100%; }

/* ---- 登录页 ---- */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark2) 100%);
    position: relative;
}
.login-page::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 40px, rgba(201,168,76,0.04) 40px, rgba(201,168,76,0.04) 41px),
        repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(201,168,76,0.04) 40px, rgba(201,168,76,0.04) 41px);
}
.login-box {
    position: relative;
    z-index: 1;
    background: var(--white);
    width: 400px;
    padding: 48px 40px;
    border-top: 3px solid var(--gold);
    box-shadow: 0 24px 64px rgba(0,0,0,0.3);
}
.login-logo {
    text-align: center;
    margin-bottom: 32px;
}
.login-logo-title {
    font-size: 22px;
    letter-spacing: 0.2em;
    color: var(--dark);
}
.login-logo-sub {
    font-size: 11px;
    color: var(--gold);
    letter-spacing: 0.3em;
    margin-top: 4px;
}
.login-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    margin: 20px 0;
    opacity: 0.4;
}

/* ---- 管理布局 ---- */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 */
.admin-sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    overflow-y: auto;
}
.sidebar-brand {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(201,168,76,0.15);
}
.sidebar-brand-name {
    font-size: 15px;
    color: var(--gold-light);
    letter-spacing: 0.15em;
    margin-bottom: 2px;
}
.sidebar-brand-sub {
    font-size: 10px;
    color: rgba(255,255,255,0.3);
    letter-spacing: 0.2em;
}
.sidebar-nav { flex: 1; padding: 12px 0; }
.sidebar-section-label {
    font-size: 10px;
    letter-spacing: 0.25em;
    color: rgba(255,255,255,0.25);
    padding: 14px 20px 6px;
    text-transform: uppercase;
}
.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: rgba(255,255,255,0.55);
    font-size: 13px;
    letter-spacing: 0.05em;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}
.sidebar-link:hover {
    color: var(--gold-light);
    background: rgba(201,168,76,0.08);
}
.sidebar-link.active {
    color: var(--gold-light);
    background: rgba(201,168,76,0.12);
    border-left-color: var(--gold);
}
.sidebar-link svg { flex-shrink: 0; opacity: 0.8; }
.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(201,168,76,0.1);
}
.sidebar-footer a {
    font-size: 12px;
    color: rgba(255,255,255,0.3);
}
.sidebar-footer a:hover { color: var(--gold-light); }

/* 主内容区 */
.admin-main {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}
.admin-topbar {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 0 28px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 1px 8px rgba(26,18,8,0.06);
}
.topbar-title {
    font-size: 15px;
    color: var(--text);
    letter-spacing: 0.08em;
}
.topbar-user {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: var(--text-muted);
}
.admin-content {
    padding: 28px;
    flex: 1;
}

/* ---- 卡片 ---- */
.card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(90deg, rgba(201,168,76,0.05), transparent);
}
.card-title {
    font-size: 14px;
    letter-spacing: 0.1em;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 8px;
}
.card-title::before {
    content: '';
    display: block;
    width: 3px;
    height: 14px;
    background: var(--gold);
    border-radius: 2px;
}
.card-body { padding: 20px; }

/* ---- 统计卡片 ---- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--white);
    border: 1px solid var(--border);
    padding: 20px;
    border-top: 3px solid var(--gold);
}
.stat-label {
    font-size: 11px;
    letter-spacing: 0.2em;
    color: var(--text-muted);
    margin-bottom: 8px;
}
.stat-value {
    font-size: 28px;
    color: var(--dark);
    font-family: Georgia, serif;
}
.stat-sub {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ---- 表单 ---- */
.form-group { margin-bottom: 18px; }
.form-label {
    display: block;
    font-size: 13px;
    color: var(--text);
    letter-spacing: 0.05em;
    margin-bottom: 6px;
}
.form-label .required { color: #C62828; margin-left: 2px; }
.form-control {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border);
    background: var(--white);
    font-family: var(--font);
    font-size: 13px;
    color: var(--text);
    border-radius: var(--radius);
    transition: border-color 0.2s;
    outline: none;
}
.form-control:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 2px rgba(201,168,76,0.12);
}
textarea.form-control { resize: vertical; min-height: 100px; }
select.form-control { cursor: pointer; }
.form-hint { font-size: 11px; color: var(--text-muted); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* 富文本编辑器区域 */
.editor-toolbar {
    border: 1px solid var(--border);
    border-bottom: none;
    background: var(--cream);
    padding: 8px 10px;
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    border-radius: var(--radius) var(--radius) 0 0;
}
.editor-btn {
    padding: 4px 10px;
    border: 1px solid var(--border);
    background: var(--white);
    font-size: 12px;
    cursor: pointer;
    border-radius: 2px;
    color: var(--text);
    font-family: var(--font);
    transition: all 0.15s;
}
.editor-btn:hover {
    background: var(--gold-pale);
    border-color: var(--gold);
}
#articleContent {
    border-radius: 0 0 var(--radius) var(--radius);
}

/* ---- 按钮 ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    border: none;
    font-family: var(--font);
    font-size: 13px;
    letter-spacing: 0.05em;
    cursor: pointer;
    border-radius: var(--radius);
    transition: all 0.2s;
    text-decoration: none;
}
.btn-gold {
    background: linear-gradient(135deg, var(--gold-dark), var(--gold));
    color: var(--white);
}
.btn-gold:hover {
    background: linear-gradient(135deg, var(--gold), var(--gold-light));
    color: var(--white);
    box-shadow: 0 4px 12px rgba(201,168,76,0.3);
}
.btn-dark {
    background: var(--dark);
    color: var(--gold-light);
}
.btn-dark:hover { background: var(--dark2); color: var(--gold-light); }
.btn-danger {
    background: #C62828;
    color: var(--white);
}
.btn-danger:hover { background: #B71C1C; color: var(--white); }
.btn-outline {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
}
.btn-outline:hover {
    border-color: var(--gold);
    color: var(--gold-dark);
}
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-xs { padding: 3px 8px; font-size: 11px; }

/* ---- 表格 ---- */
.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
.admin-table th {
    background: var(--dark);
    color: var(--gold-light);
    padding: 10px 14px;
    text-align: left;
    font-weight: 500;
    letter-spacing: 0.08em;
    white-space: nowrap;
}
.admin-table td {
    padding: 11px 14px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
.admin-table tr:hover td { background: rgba(201,168,76,0.03); }
.admin-table tr:last-child td { border-bottom: none; }

/* ---- 徽章 ---- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: 11px;
    letter-spacing: 0.1em;
    border-radius: 2px;
}
.badge-success { background: #E8F5E9; color: #2E7D32; }
.badge-danger { background: #FFEBEE; color: #C62828; }
.badge-warning { background: #FFF8E1; color: #F57F17; }
.badge-info { background: #E3F2FD; color: #1565C0; }
.badge-gold { background: var(--gold-pale); color: var(--gold-dark); }

/* ---- 提示消息 ---- */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    font-size: 13px;
    margin-bottom: 16px;
    border-left: 4px solid;
}
.alert-success { background: #E8F5E9; color: #1B5E20; border-color: #4CAF50; }
.alert-danger { background: #FFEBEE; color: #B71C1C; border-color: #F44336; }
.alert-warning { background: #FFF8E1; color: #E65100; border-color: #FFC107; }
.alert-info { background: #E3F2FD; color: #0D47A1; border-color: #2196F3; }

/* ---- 搜索/过滤栏 ---- */
.filter-bar {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.filter-bar .form-control { width: auto; min-width: 160px; }

/* ---- 分页 ---- */
.admin-pagination {
    display: flex;
    gap: 6px;
    align-items: center;
    margin-top: 16px;
    justify-content: flex-end;
}
.admin-pagination a, .admin-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 1px solid var(--border);
    background: var(--white);
    font-size: 12px;
    color: var(--text-muted);
    border-radius: var(--radius);
}
.admin-pagination a:hover { border-color: var(--gold); color: var(--gold-dark); }
.admin-pagination span.current { background: var(--dark); color: var(--gold-light); border-color: var(--dark); }

/* ---- 图片上传 ---- */
.img-upload-area {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--cream);
}
.img-upload-area:hover { border-color: var(--gold); background: var(--gold-pale); }
.img-preview { max-width: 200px; max-height: 150px; margin: 10px auto 0; display: none; }

/* ---- 开关 ---- */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 40px;
    height: 22px;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: #ccc;
    border-radius: 22px;
    transition: 0.3s;
}
.toggle-slider::before {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: 0.3s;
}
input:checked + .toggle-slider { background: var(--gold); }
input:checked + .toggle-slider::before { transform: translateX(18px); }

/* ---- 面包屑 ---- */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 16px;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--gold-dark); }
.breadcrumb-sep { opacity: 0.4; }

/* ---- 排序拖拽 ---- */
.sort-handle {
    cursor: grab;
    color: var(--border);
    padding: 0 4px;
}
.sort-handle:hover { color: var(--gold); }

/* ---- 响应式 ---- */
@media (max-width: 768px) {
    .admin-sidebar { width: 0; overflow: hidden; }
    .admin-main { margin-left: 0; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .form-row { grid-template-columns: 1fr; }
}