:root {
    --primary: #6C5CE7;
    --primary-light: #A29BFE;
    --success: #00B894;
    --warning: #FDCB6E;
    --danger: #E17055;
    --info: #74B9FF;
    --bg: #F8F9FA;
    --card-bg: #FFFFFF;
    --text: #2D3436;
    --text-light: #636E72;
    --border: #DFE6E9;
    --radius: 12px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

/* Layout */
.layout { display: flex; min-height: 100vh; }

.sidebar {
    width: 240px;
    background: linear-gradient(135deg, var(--primary) 0%, #4834D4 100%);
    color: white;
    padding: 24px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar h1 {
    font-size: 20px;
    padding: 0 24px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.15);
    margin-bottom: 16px;
}

.sidebar nav a {
    display: block;
    padding: 10px 24px;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.2s;
}

.sidebar nav a:hover, .sidebar nav a.active {
    background: rgba(255,255,255,0.12);
    color: white;
}

.sidebar nav a .icon { margin-right: 8px; }

.main {
    margin-left: 240px;
    flex: 1;
    padding: 32px;
    max-width: 1200px;
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    padding: 24px;
    margin-bottom: 24px;
}

.card h2 {
    font-size: 18px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.card h3 {
    font-size: 15px;
    margin: 12px 0 8px;
    color: var(--text-light);
}

/* Stats grid */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    text-align: center;
}

.stat-card .number {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
}

.stat-card .label {
    font-size: 13px;
    color: var(--text-light);
    margin-top: 4px;
}

/* Channel grid */
.channel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.channel-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    text-decoration: none;
    color: var(--text);
    transition: transform 0.2s, box-shadow 0.2s;
    display: block;
}

.channel-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.channel-card .icon { font-size: 36px; margin-bottom: 12px; }
.channel-card .name { font-size: 18px; font-weight: 600; margin-bottom: 4px; }
.channel-card .slogan { font-size: 12px; color: var(--primary); font-style: italic; margin-bottom: 6px; }
.channel-card .desc { font-size: 13px; color: var(--text-light); }

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

th, td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    font-weight: 600;
    color: var(--text-light);
    font-size: 12px;
    text-transform: uppercase;
}

tr:hover td { background: #F8F9FA; }

/* Badges */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.badge-success { background: #D4EDDA; color: #155724; }
.badge-warning { background: #FFF3CD; color: #856404; }
.badge-danger { background: #F8D7DA; color: #721C24; }
.badge-info { background: #D1ECF1; color: #0C5460; }
.badge-primary { background: #E8E4FD; color: var(--primary); }
.badge-secondary { background: #E2E3E5; color: #383D41; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 8px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: #5A4BD1; }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #00A381; }
.btn-warning { background: var(--warning); color: var(--text); }
.btn-danger { background: var(--danger); color: white; }
.btn-sm { padding: 4px 12px; font-size: 12px; }
.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 6px;
}

input[type="text"], input[type="number"], select, textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1);
}

textarea { resize: vertical; min-height: 80px; }

/* Alert */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}

.alert-error { background: #F8D7DA; color: #721C24; border: 1px solid #F5C6CB; }
.alert-success { background: #D4EDDA; color: #155724; border: 1px solid #C3E6CB; }

/* Staff / Host list */
.staff-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.staff-item {
    background: #F8F9FA;
    border-radius: 8px;
    padding: 12px 16px;
    min-width: 180px;
}

.staff-item .role {
    font-size: 11px;
    color: var(--primary);
    text-transform: uppercase;
    font-weight: 600;
}

.staff-item .name { font-weight: 600; margin-top: 2px; }
.staff-item .detail { font-size: 12px; color: var(--text-light); margin-top: 4px; }

/* Schedule */
.schedule-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
}

.schedule-day {
    background: #F8F9FA;
    border-radius: 8px;
    padding: 12px;
    min-height: 80px;
}

.schedule-day .day-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 8px;
}

.schedule-slot {
    background: white;
    border-radius: 6px;
    padding: 6px 10px;
    margin-bottom: 4px;
    font-size: 12px;
    border-left: 3px solid var(--primary);
}

/* Script viewer */
.script-viewer {
    max-height: 600px;
    overflow-y: auto;
}

.segment {
    margin-bottom: 20px;
    padding: 16px;
    background: #F8F9FA;
    border-radius: 8px;
}

.segment-header {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 10px;
    text-transform: uppercase;
}

.utterance {
    margin-bottom: 8px;
    padding: 8px 12px;
    background: white;
    border-radius: 6px;
}

.utterance .role {
    font-weight: 600;
    color: var(--primary);
    font-size: 13px;
}

.utterance .text {
    margin-top: 2px;
    font-size: 14px;
}

/* Breadcrumb */
.breadcrumb {
    font-size: 13px;
    color: var(--text-light);
    margin-bottom: 16px;
}

.breadcrumb a { color: var(--primary); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

/* Inline form */
.inline-form {
    display: flex;
    gap: 8px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.inline-form .form-group { margin-bottom: 0; }

/* Page header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.page-header h1 { font-size: 24px; }

/* Loading */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-light);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar { display: none; }
    .main { margin-left: 0; padding: 16px; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .schedule-grid { grid-template-columns: 1fr; }
}

/* 歌曲段歌词（儿歌律动风格） */
.song-lyrics {
    margin: 6px 0 6px 12px;
    padding: 8px 12px;
    background: #FFF8E7;
    border-left: 3px solid #FFC107;
    border-radius: 6px;
    font-size: 12px;
    color: var(--text);
}
.song-lyrics pre {
    margin: 6px 0 0;
    font-family: inherit;
    white-space: pre-wrap;
    line-height: 1.6;
}