/* ==================== 后台管理样式 ==================== */

:root {
    --admin-bg: #0f172a;
    --admin-bg-card: #1e293b;
    --admin-bg-card-hover: #334155;
    --admin-border: #334155;
    --admin-text: #e2e8f0;
    --admin-text-muted: #94a3b8;
    --admin-primary: #6366f1;
    --admin-primary-light: #818cf8;
    --admin-success: #10b981;
    --admin-warning: #f59e0b;
    --admin-danger: #ef4444;
    --admin-sidebar-w: 240px;
    --admin-topbar-h: 60px;
}

* { box-sizing: border-box; }
html, body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--admin-bg);
    color: var(--admin-text);
    font-size: 14px;
}

/* ==================== 登录页 ==================== */
.admin-login-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #312e81 100%);
}
.admin-login-card {
    width: 380px;
    padding: 40px 32px;
    background: rgba(30, 41, 59, 0.7);
    backdrop-filter: blur(20px);
    border: 1px solid var(--admin-border);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}
.admin-login-brand {
    text-align: center;
    margin-bottom: 32px;
}
.admin-login-logo {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--admin-primary), var(--admin-primary-light));
    color: white;
    font-size: 28px;
    font-weight: 700;
    line-height: 56px;
    margin: 0 auto 14px;
}
.admin-login-brand h1 {
    margin: 0 0 4px;
    font-size: 22px;
    font-weight: 600;
}
.admin-login-sub {
    margin: 0;
    color: var(--admin-text-muted);
    font-size: 13px;
}
.admin-form-group {
    margin-bottom: 18px;
}
.admin-form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    color: var(--admin-text-muted);
}
.admin-form-group input {
    width: 100%;
    padding: 11px 14px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    color: var(--admin-text);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.admin-form-group input:focus {
    border-color: var(--admin-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}
.admin-login-btn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, var(--admin-primary), var(--admin-primary-light));
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
}
.admin-login-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}
.admin-login-error {
    color: var(--admin-danger);
    font-size: 13px;
    text-align: center;
    min-height: 18px;
    margin-top: 10px;
}
.admin-login-tip {
    margin-top: 20px;
    text-align: center;
    color: var(--admin-text-muted);
    font-size: 12px;
}

/* ==================== 主框架 ==================== */
.admin-body {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 */
.admin-sidebar {
    width: var(--admin-sidebar-w);
    background: #0b1220;
    border-right: 1px solid var(--admin-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    overflow-y: auto;
}
.admin-sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 18px 20px;
    border-bottom: 1px solid var(--admin-border);
}
.admin-logo {
    width: 36px;
    height: 36px;
    border-radius: 9px;
    background: linear-gradient(135deg, var(--admin-primary), var(--admin-primary-light));
    color: white;
    font-size: 18px;
    font-weight: 700;
    line-height: 36px;
    text-align: center;
    flex-shrink: 0;
}
.admin-brand-title { font-size: 15px; font-weight: 600; }
.admin-brand-sub { font-size: 11px; color: var(--admin-text-muted); }

.admin-nav {
    flex: 1;
    padding: 12px 0;
}
.admin-nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 20px;
    color: var(--admin-text-muted);
    cursor: pointer;
    border-left: 3px solid transparent;
    transition: background 0.15s, color 0.15s;
    user-select: none;
}
.admin-nav-item:hover {
    background: rgba(99, 102, 241, 0.08);
    color: var(--admin-text);
}
.admin-nav-item.active {
    background: rgba(99, 102, 241, 0.15);
    color: white;
    border-left-color: var(--admin-primary);
}
.admin-nav-icon { font-size: 16px; }

.admin-sidebar-foot {
    border-top: 1px solid var(--admin-border);
    padding: 10px 0;
}
.admin-sidebar-link {
    display: block;
    width: 100%;
    text-align: left;
    padding: 9px 20px;
    color: var(--admin-text-muted);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 13px;
    text-decoration: none;
    transition: color 0.15s;
}
.admin-sidebar-link:hover { color: var(--admin-text); }

/* 主区 */
.admin-main {
    margin-left: var(--admin-sidebar-w);
    flex: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.admin-topbar {
    height: var(--admin-topbar-h);
    background: var(--admin-bg-card);
    border-bottom: 1px solid var(--admin-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 10;
}
.admin-page-title { font-size: 16px; font-weight: 600; }
.admin-topbar-right { display: flex; align-items: center; gap: 16px; }
.admin-welcome { color: var(--admin-text-muted); font-size: 13px; }
.admin-time { color: var(--admin-text-muted); font-size: 12px; font-family: monospace; }

/* 页面切换 */
.admin-page {
    display: none;
    padding: 24px;
    flex: 1;
}
.admin-page.active { display: block; }

/* 卡片 */
.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.admin-stat-card {
    background: var(--admin-bg-card);
    border: 1px solid var(--admin-border);
    border-radius: 12px;
    padding: 18px 20px;
    transition: border-color 0.2s, transform 0.15s;
}
.admin-stat-card:hover {
    border-color: var(--admin-primary);
    transform: translateY(-2px);
}
.admin-stat-label { color: var(--admin-text-muted); font-size: 12px; margin-bottom: 8px; }
.admin-stat-value { font-size: 28px; font-weight: 600; margin-bottom: 4px; }
.admin-stat-sub { color: var(--admin-text-muted); font-size: 12px; }

/* 图表 */
.admin-charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}
.admin-chart-card {
    background: var(--admin-bg-card);
    border: 1px solid var(--admin-border);
    border-radius: 12px;
    padding: 18px 20px;
    margin-bottom: 16px;
}
.admin-chart-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--admin-text-muted);
    margin-bottom: 14px;
    padding-bottom: 0;
}
.admin-chart-wrap {
    position: relative;
    height: 240px;
}
.admin-chart-wrap-tall {
    height: 320px;
}

/* 工具栏 */
.admin-toolbar {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.admin-search, .admin-select {
    padding: 8px 12px;
    background: var(--admin-bg-card);
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    color: var(--admin-text);
    font-size: 13px;
    outline: none;
    min-width: 160px;
}
.admin-search:focus, .admin-select:focus {
    border-color: var(--admin-primary);
}
.admin-btn {
    padding: 8px 16px;
    background: var(--admin-primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.15s;
}
.admin-btn:hover { background: var(--admin-primary-light); }
.admin-btn-mini {
    padding: 6px 12px;
    font-size: 12px;
    background: var(--admin-bg-card);
    border: 1px solid var(--admin-border);
}
.admin-btn-mini:hover {
    background: var(--admin-bg-card-hover);
}
.admin-btn-violet {
    background: rgba(99,102,241,0.15);
    color: #818cf8;
    border: 1px solid rgba(99,102,241,0.4);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 12px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}
.admin-btn-violet:hover {
    background: rgba(99,102,241,0.25);
    border-color: rgba(99,102,241,0.7);
}

/* 表格 */
.admin-table-wrap {
    background: var(--admin-bg-card);
    border: 1px solid var(--admin-border);
    border-radius: 12px;
    overflow: hidden;
}
.admin-table {
    width: 100%;
    border-collapse: collapse;
}
.admin-table th, .admin-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--admin-border);
    font-size: 13px;
}
.admin-table th {
    background: rgba(15, 23, 42, 0.5);
    color: var(--admin-text-muted);
    font-weight: 500;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.admin-table tbody tr:hover { background: rgba(99, 102, 241, 0.05); }
.admin-table tbody tr:last-child td { border-bottom: none; }
.admin-table .num { font-family: monospace; color: var(--admin-primary-light); }
.admin-table .truncate {
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--admin-text-muted);
}
.admin-table .truncate-strong { max-width: 140px; color: var(--admin-text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.admin-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 500;
}
.admin-badge-admin { background: rgba(99, 102, 241, 0.2); color: var(--admin-primary-light); }
.admin-badge-trial { background: rgba(245, 158, 11, 0.2); color: var(--admin-warning); }
.admin-badge-normal { background: rgba(148, 163, 184, 0.15); color: var(--admin-text-muted); }

.admin-tag {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 500;
}
.admin-tag-misunderstanding { background: rgba(196, 112, 112, 0.2); color: #f5b5b5; }
.admin-tag-thinking { background: rgba(200, 154, 26, 0.2); color: #f5d77a; }
.admin-tag-extension { background: rgba(108, 147, 184, 0.2); color: #a4c0db; }
.admin-tag-inspiration { background: rgba(111, 165, 114, 0.2); color: #a8d4a8; }

.admin-status {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 10px;
    font-size: 11px;
}
.admin-status-active { background: rgba(99, 102, 241, 0.2); color: var(--admin-primary-light); }
.admin-status-completed { background: rgba(16, 185, 129, 0.2); color: var(--admin-success); }

.admin-level {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 10px;
    font-size: 11px;
}
.admin-level-high { background: rgba(239, 68, 68, 0.15); color: #fca5a5; }
.admin-level-medium { background: rgba(245, 158, 11, 0.15); color: var(--admin-warning); }
.admin-level-low { background: rgba(16, 185, 129, 0.15); color: var(--admin-success); }

.admin-progress {
    width: 80px;
    height: 6px;
    background: var(--admin-border);
    border-radius: 3px;
    overflow: hidden;
    display: inline-block;
    vertical-align: middle;
    margin-right: 6px;
}
.admin-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--admin-primary), var(--admin-primary-light));
    transition: width 0.3s;
}

/* 分页 */
.admin-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 14px;
    padding: 14px;
    color: var(--admin-text-muted);
    font-size: 12px;
}

.admin-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--admin-text-muted);
}

/* 叙事详情模态框 */
.admin-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}
.admin-modal[hidden] { display: none; }
.admin-modal-mask {
    position: absolute;
    inset: 0;
    background: rgba(2, 6, 23, 0.7);
    backdrop-filter: blur(4px);
}
.admin-modal-panel {
    position: relative;
    width: min(880px, 92vw);
    max-height: 86vh;
    background: var(--admin-bg-card);
    border: 1px solid var(--admin-border);
    border-radius: 14px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.admin-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--admin-border);
}
.admin-modal-header h3 {
    margin: 0;
    font-size: 16px;
    color: var(--admin-text);
    font-weight: 600;
    word-break: break-word;
    padding-right: 12px;
}
.admin-modal-close {
    background: transparent;
    border: none;
    color: var(--admin-text-muted);
    font-size: 26px;
    line-height: 1;
    cursor: pointer;
    padding: 4px 10px;
    border-radius: 6px;
    transition: background 0.15s;
}
.admin-modal-close:hover { background: var(--admin-bg-card-hover); color: var(--admin-text); }
.admin-modal-meta {
    padding: 14px 20px;
    border-bottom: 1px solid var(--admin-border);
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    font-size: 12px;
    color: var(--admin-text-muted);
}
.admin-modal-meta .meta-item strong { color: var(--admin-text); margin-right: 6px; font-weight: 500; }
.admin-modal-body {
    padding: 18px 20px 22px;
    overflow-y: auto;
    flex: 1 1 auto;
}
.narr-msg {
    margin-bottom: 14px;
    display: flex;
    flex-direction: column;
}
.narr-msg .narr-role {
    font-size: 11px;
    color: var(--admin-text-muted);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.narr-msg .narr-bubble {
    padding: 12px 14px;
    border-radius: 10px;
    line-height: 1.65;
    font-size: 14px;
    white-space: pre-wrap;
    word-break: break-word;
    border: 1px solid var(--admin-border);
}
.narr-msg.user .narr-bubble {
    background: rgba(99, 102, 241, 0.10);
    border-color: rgba(99, 102, 241, 0.35);
    color: var(--admin-text);
}
.narr-msg.assistant .narr-bubble {
    background: var(--admin-bg);
    color: var(--admin-text);
}
.narr-msg.system .narr-bubble {
    background: rgba(245, 158, 11, 0.08);
    border-color: rgba(245, 158, 11, 0.30);
    font-style: italic;
}
.narr-msg .narr-choices {
    margin-top: 8px;
    padding: 10px 12px;
    border-radius: 8px;
    background: rgba(99, 102, 241, 0.06);
    border: 1px dashed rgba(99, 102, 241, 0.35);
    font-size: 13px;
    color: var(--admin-text-muted);
}
.narr-msg .narr-choices div + div { margin-top: 4px; }
.narr-completed {
    margin-top: 18px;
    padding: 14px 16px;
    border-radius: 10px;
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.30);
}
.narr-completed .narr-completed-title {
    font-size: 12px;
    color: var(--admin-success);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}
.narr-completed .narr-completed-body {
    white-space: pre-wrap;
    line-height: 1.7;
    font-size: 14px;
    color: var(--admin-text);
}
.narr-empty {
    padding: 60px 20px;
    text-align: center;
    color: var(--admin-text-muted);
}

/* ===== 叙事详情 AI 类型筛选 ===== */
.admin-modal-toolbar {
    padding: 14px 20px;
    border-bottom: 1px solid var(--admin-border);
    background: rgba(99, 102, 241, 0.04);
    flex-shrink: 0;
}
.narr-filter-label {
    font-size: 0.78rem;
    color: var(--admin-text-muted);
    margin-bottom: 8px;
    font-weight: 500;
}
.narr-filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.narr-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--admin-bg-card);
    border: 1px solid var(--admin-border);
    border-radius: 16px;
    color: var(--admin-text);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.15s ease;
    font-family: inherit;
}
.narr-filter-btn:hover {
    border-color: var(--admin-primary);
    background: rgba(99, 102, 241, 0.06);
}
.narr-filter-btn.active {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.18), rgba(139, 92, 246, 0.18));
    border-color: var(--admin-primary);
    color: var(--admin-text);
    font-weight: 600;
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.12);
}
.narr-filter-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--tag-color, var(--admin-primary));
}
.narr-filter-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 18px;
    padding: 0 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 9px;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--admin-text);
}
.narr-filter-btn.active .narr-filter-count {
    background: rgba(99, 102, 241, 0.25);
}

/* AI 消息旁的标签徽章 */
.narr-tag-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-left: 4px;
    padding: 1px 8px;
    border-radius: 10px;
    font-size: 0.68rem;
    background: color-mix(in srgb, var(--tag-color) 15%, transparent);
    color: var(--tag-color);
    font-weight: 600;
    border: 1px solid color-mix(in srgb, var(--tag-color) 35%, transparent);
}

/* 筛选结果摘要 */
.narr-filter-summary {
    padding: 10px 14px;
    margin-bottom: 14px;
    background: rgba(99, 102, 241, 0.08);
    border-left: 3px solid var(--admin-primary);
    border-radius: 4px;
    color: var(--admin-text);
    font-size: 0.85rem;
}
.narr-filter-summary strong {
    color: var(--admin-primary);
    font-weight: 700;
}

/* 用户后续输入 */
.narr-user-reply {
    margin-top: 10px;
    padding: 10px 14px 10px 16px;
    background: rgba(34, 197, 94, 0.08);
    border-left: 3px solid rgba(34, 197, 94, 0.6);
    border-radius: 0 8px 8px 0;
    position: relative;
}
.narr-user-reply-label {
    font-size: 0.72rem;
    color: #4ade80;
    font-weight: 600;
    margin-bottom: 4px;
    letter-spacing: 0.3px;
}
.narr-user-reply-body {
    color: var(--admin-text);
    font-size: 0.88rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
}
.narr-user-reply-empty {
    background: rgba(148, 163, 184, 0.06);
    border-left-color: rgba(148, 163, 184, 0.4);
}
.narr-user-reply-empty .narr-user-reply-label {
    color: var(--admin-text-muted);
    font-weight: 500;
    font-style: italic;
}

@media (max-width: 900px) {
    .admin-charts-grid { grid-template-columns: 1fr; }
    .admin-sidebar {
        width: 60px;
    }
    .admin-brand-text, .admin-nav-item span:not(.admin-nav-icon), .admin-sidebar-link {
        display: none;
    }
    .admin-main { margin-left: 60px; }
    .admin-nav-item { justify-content: center; padding: 12px 0; }
}