:root {
  --sidebar-bg: #1E292E;
  --theme-color: #C48B48;
  --page-bg: #FAF5ED;
  --card-bg: #FFFFFF;
  --text-main: #333;
  --text-gray: #666;
  --success: #86C99E;
  --danger: #E54D4D;
  --blue: #4285F4;
  --purple: #9C27B0;
  --yellow: #F0AD4E;
  --border: #eee;
  --radius: 10px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
}
* { margin: 0; padding: 0; box-sizing: border-box; font-family: "Microsoft Yahei", "PingFang SC", sans-serif; }
body { display: flex; height: 100vh; overflow: hidden; background: var(--page-bg); }

/* Sidebar */
.sidebar { width: 260px; background: var(--sidebar-bg); color: #fff; display: flex; flex-direction: column; padding: 30px 0; box-shadow: var(--shadow); flex-shrink: 0; }
.sidebar::-webkit-scrollbar { display: none; }
.sidebar-logo { padding: 0 20px 40px; border-bottom: 1px solid rgba(255,255,255,0.1); margin-bottom: 20px; }
.sidebar-logo h1 { font-size: 26px; color: var(--theme-color); }
.sidebar-logo p { font-size: 12px; color: rgba(255,255,255,0.6); margin-top: 5px; }
.nav-container { flex: 1; overflow-y: auto; padding: 0 10px; }
.nav-item { padding: 14px 20px; margin: 8px 0; border-radius: var(--radius); cursor: pointer; font-size: 15px; transition: 0.2s; display: flex; align-items: center; gap: 10px; }
.nav-item.active { background: var(--theme-color); color: #fff; }
.nav-item:hover { background: rgba(196,139,72,0.2); }
.operation-shortcut { padding: 20px; border-top: 1px solid rgba(255,255,255,0.1); margin-top: 20px; }
.operation-shortcut h3 { font-size: 14px; margin-bottom: 15px; color: rgba(255,255,255,0.8); }
.shortcut-btn { width: 100%; padding: 10px; border: none; border-radius: var(--radius); background: rgba(196,139,72,0.3); color: #fff; margin-bottom: 10px; cursor: pointer; font-size: 13px; }
.shortcut-btn:hover { background: var(--theme-color); }
.sidebar-footer { padding: 0 20px 20px; }

/* Main Content */
.main-content { flex: 1; padding: 30px; overflow-y: auto; }
.page { display: none; }
.page.show { display: block; }
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 25px; flex-wrap: wrap; gap: 10px; }
.page-title { font-size: 24px; color: var(--text-main); font-weight: 600; }
.btn-group { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.btn { padding: 10px 20px; border: none; border-radius: var(--radius); cursor: pointer; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; color: #fff; }
.btn-primary { background: var(--theme-color); }
.btn-success { background: var(--success); }
.btn-danger { background: var(--danger); }
.btn-normal { background: #F5F5F5; color: var(--text-gray); }

/* Small buttons */
.btn-sm { padding: 5px 12px; font-size: 12px; border-radius: 6px; border: none; cursor: pointer; margin: 0 4px; }
.btn-sm-edit { background: #e8e8e8; color: #333; }
.btn-sm-online { background: #d4edda; color: #155724; }
.btn-sm-offline { background: #f8d7da; color: #721c24; }
.btn-sm-copy { background: #fff3cd; color: #856404; }
.btn-sm-del { background: #f8d7da; color: #721c24; }
.btn-sm-detail { background: #cce5ff; color: #004085; }
.btn-sm-up, .btn-sm-down { background: #e8e8e8; color: #555; padding: 3px 8px; font-size: 14px; }
.btn-sm-up[disabled], .btn-sm-down[disabled] { opacity: 0.3; cursor: not-allowed; }

/* Stat cards */
.stats-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-bottom: 30px; }
.stat-card { background: var(--card-bg); padding: 20px; border-radius: var(--radius); box-shadow: var(--shadow); }
.stat-num { font-size: 32px; font-weight: bold; color: var(--theme-color); margin-bottom: 8px; }
.stat-desc { font-size: 14px; color: var(--text-gray); }

/* Chart/Table container */
.chart-container { background: var(--card-bg); padding: 20px; border-radius: var(--radius); box-shadow: var(--shadow); margin-bottom: 30px; }
.chart-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.chart-title { font-size: 16px; color: var(--text-main); }

/* Filter bar */
.filter-bar { margin-bottom: 15px; display: flex; align-items: center; gap: 10px; }
.filter-input, .filter-select { padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; outline: none; background: #fff; }
.filter-input:focus, .filter-select:focus { border-color: var(--theme-color); }

/* Table */
.table-container { background: var(--card-bg); border-radius: var(--radius); overflow-x: auto; box-shadow: var(--shadow); margin-bottom: 30px; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14px; white-space: nowrap; }
.table th { background: #F5EFE6; color: var(--text-main); font-weight: 600; }
.table tbody tr:hover { background: rgba(196,139,72,0.05); }

/* Heat badge */
.heat-badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; font-weight: bold; background: linear-gradient(135deg, #ff6b6b, #ffa500); color: #fff; min-width: 30px; text-align: center; }

/* Tags & Marks */
.tag { padding: 4px 10px; border-radius: 4px; font-size: 12px; background: #F0E9DF; color: var(--text-gray); display: inline-block; margin-right: 6px; }
.mark { padding: 4px 10px; border-radius: 4px; font-size: 12px; color: #fff; display: inline-block; }
.mark-hot { background: var(--danger); }
.mark-new { background: #36CBCB; }
.mark-best { background: var(--theme-color); }
.mark-top { background: var(--blue); }
.mark-essence { background: var(--purple); }
.mark-normal { background: #999; }
.status { padding: 4px 8px; border-radius: 4px; font-size: 12px; display: inline-block; }
.status-online { background: rgba(134,201,158,0.1); color: var(--success); }
.status-offline { background: rgba(153,153,153,0.1); color: var(--text-gray); }
.status-voting { background: rgba(66,133,244,0.1); color: var(--blue); }
.status-ended { background: rgba(196,139,72,0.1); color: var(--theme-color); }

/* Share unlock select */
.share-unlock-select { padding: 4px 8px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; background: #fff; color: var(--text-main); outline: none; cursor: pointer; min-width: 80px; }
.share-unlock-select:hover { border-color: var(--theme-color); }
.share-unlock-select:focus { border-color: var(--theme-color); box-shadow: 0 0 0 2px rgba(196,139,72,0.15); }

/* Modal */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,0.5); display: none; align-items: center; justify-content: center; z-index: 999; }
.modal-content { width: 92%; max-width: 900px; background: var(--card-bg); border-radius: var(--radius); padding: 25px; max-height: 90vh; overflow-y: auto; }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 1px solid var(--border); }
.modal-title { font-size: 20px; color: var(--text-main); }
.modal-close { font-size: 24px; color: var(--text-gray); cursor: pointer; }
.modal-close:hover { color: var(--danger); }

/* Form */
.form-group { margin-bottom: 18px; }
.form-label { display: block; margin-bottom: 8px; font-size: 14px; color: var(--text-main); font-weight: 500; }
.form-input, .form-textarea, .form-select { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; outline: none; }
.form-textarea { min-height: 100px; resize: vertical; }
.form-row { display: flex; gap: 15px; }
.form-row .form-group { flex: 1; }

/* Tag & Mark groups */
.tag-group, .mark-group { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.tag-item { padding: 6px 12px; background: #F0E9DF; border-radius: 4px; font-size: 12px; cursor: pointer; }
.tag-item:hover { background: var(--theme-color); color: #fff; }
.mark-item { padding: 6px 12px; border-radius: 4px; font-size: 12px; color: #fff; border: none; cursor: pointer; transition: all 0.15s; }
.mark-item.active { outline: 3px solid #fff; box-shadow: 0 0 0 3px #8c6d31; transform: scale(1.08); }
/* 紧凑模式 for modal */
#story-edit-modal .tag-group .tag-item { padding: 3px 7px; font-size: 11px; }
#story-edit-modal .mark-group .mark-item { padding: 3px 8px; font-size: 11px; }
#story-edit-modal .mark-group { gap: 4px; }
#story-edit-modal .tag-group { gap: 3px; }

/* Node editor */
.node-container { border: 1px solid var(--border); border-radius: var(--radius); padding: 15px; margin-bottom: 15px; background: #FFF8F0; }
.node-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.node-title { font-size: 16px; font-weight: 600; }
.branch-container { margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--border); }
.branch-item { border: 1px solid var(--border); border-radius: 6px; padding: 12px; margin-bottom: 10px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.branch-item .form-input { flex: 1; min-width: 100px; }

/* Vote options */
.vote-option { border: 1px solid var(--border); border-radius: 6px; padding: 12px; margin-bottom: 10px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }

/* Operation log */
.log-item { padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 14px; color: var(--text-gray); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 6px; }
.log-time { color: #999; font-size: 12px; }

/* API status */
.api-status { font-size: 12px; padding: 4px 10px; border-radius: 4px; }
.api-status.online { background: rgba(134,201,158,0.2); color: var(--success); }
.api-status.offline { background: rgba(229,77,77,0.2); color: var(--danger); }

.hide { display: none !important; }

/* Login page */
.login-body { display: flex; justify-content: center; align-items: center; min-height: 100vh; background: var(--page-bg); margin: 0; }
.login-container { background: var(--card-bg); padding: 48px 40px; border-radius: 16px; box-shadow: 0 4px 24px rgba(0,0,0,0.1); width: 400px; text-align: center; }
.login-logo h1 { color: var(--theme-color); font-size: 28px; margin-bottom: 8px; }
.login-logo p { color: var(--text-gray); font-size: 14px; margin-bottom: 32px; }
.login-form { text-align: left; }
.login-form .form-input { margin-bottom: 20px; font-size: 16px; }
.login-btn { width: 100%; padding: 14px; font-size: 16px; }
.login-error { color: var(--danger); font-size: 13px; margin-top: -10px; margin-bottom: 16px; min-height: 20px; text-align: center; }
.login-footer { margin-top: 24px; font-size: 13px; color: var(--text-gray); }