:root {
    --bg: #0f172a; --card: #1e293b; --border: #334155;
    --text: #e2e8f0; --muted: #94a3b8; --accent: #06b6d4;
    --green: #22c55e; --yellow: #eab308; --red: #ef4444;
    --purple: #8b5cf6; --orange: #f97316;
  }
  html { font-size: 15px; }
  * { margin:0; padding:0; box-sizing:border-box; }
  body { font-family: -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; padding-bottom: 35px; }

  /* Header */
  .header { padding: 16px 24px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
  .header-left { display: flex; align-items: center; gap: 16px; }
  .header h1 { font-size: 18px; font-weight: 700; }
  .header h1 span { color: var(--accent); }
  .header .subtitle { color: var(--muted); font-size: 12px; }
  .header-actions { display: flex; gap: 8px; align-items: center; }
  .btn-icon { width: 36px; height: 36px; border-radius: 8px; border: 1px solid var(--border); background: var(--card); color: var(--text); font-size: 16px; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.2s; }
  .btn-icon:hover { border-color: var(--accent); color: var(--accent); }
  .btn-icon.active { background: var(--accent); border-color: var(--accent); }
  .badge { display: inline-block; min-width: 18px; height: 18px; border-radius: 9px; background: var(--green); color: #fff; font-size: 10px; font-weight: 700; text-align: center; line-height: 18px; padding: 0 4px; margin-left: 4px; }

  /* Main Layout */
  .main { display: flex; height: calc(100vh - 57px - 35px); }

  /* Left: Chat */
  .chat-panel { flex: 1; display: flex; flex-direction: column; border-right: 1px solid var(--border); }
  .chat-messages { flex: 1; overflow-y: auto; padding: 24px; }
  .msg { margin-bottom: 16px; max-width: 80%; }
  .msg.user { margin-left: auto; }
  .msg-bubble { padding: 12px 16px; border-radius: 12px; font-size: 14px; line-height: 1.6; }
  .msg.user .msg-bubble { background: var(--accent); color: #fff; border-bottom-right-radius: 4px; }
  .msg.bot .msg-bubble { background: var(--card); border-bottom-left-radius: 4px; }
  .msg-time { font-size: 11px; color: var(--muted); margin-top: 4px; }

  .chat-input { padding: 16px 24px; border-top: 1px solid var(--border); }
  .smart-consult-bar { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
  .consult-btn { padding: 8px 20px; border-radius: 20px; border: 1px solid var(--accent); background: var(--accent); color: #fff; font-size: 13px; font-weight: 600; cursor: pointer; transition: all 0.2s; }
  .consult-btn:hover { opacity: 0.9; }
  .consult-btn.active { background: var(--accent); border-color: var(--accent); }
  .consult-btn.inactive { background: transparent; color: var(--muted); border-color: var(--border); }
  .consult-hint { font-size: 12px; color: var(--muted); }
  .video-format-section { margin: 12px 0; padding: 12px; background: var(--card); border-radius: 8px; border: 1px solid var(--border); }
  .video-format-section label { font-size: 13px; color: var(--muted); margin-bottom: 6px; display: block; }
  .video-format-options { display: flex; gap: 8px; }
  .format-option.selected { background: var(--accent) !important; color: #fff !important; border-color: var(--accent) !important; }
  .format-option { padding: 8px 18px; border-radius: 8px; border: 1px solid var(--border); background: transparent; color: var(--text); font-size: 13px; cursor: pointer; transition: all 0.2s; }
  .format-option:hover { border-color: var(--purple); }
  .format-option.selected { background: var(--purple); border-color: var(--purple); color: #fff; }
  .quick-btns { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
  .quick-btn { padding: 6px 14px; border-radius: 20px; border: 1px solid var(--border); background: transparent; color: var(--text); font-size: 13px; cursor: pointer; transition: all 0.2s; }
  .quick-btn:hover { border-color: var(--accent); color: var(--accent); }
  .input-row { display: flex; gap: 8px; }
  .input-row input { flex: 1; padding: 12px 16px; border-radius: 10px; border: 1px solid var(--border); background: var(--card); color: var(--text); font-size: 14px; outline: none; }
  .input-row input:focus { border-color: var(--accent); }
  .input-row button { padding: 12px 24px; border-radius: 10px; border: none; background: var(--accent); color: #fff; font-size: 14px; font-weight: 600; cursor: pointer; }
  .input-row button:hover { opacity: 0.85; }
  .input-row button:disabled { opacity: 0.5; cursor: not-allowed; }

  /* Right: Task Panel */
  .task-panel { width: 420px; padding: 24px; overflow-y: auto; background: #111827; }
  .task-panel h2 { font-size: 16px; font-weight: 600; margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }

  /* Steps */
  .step { display: flex; gap: 12px; margin-bottom: 20px; position: relative; }
  .step:not(:last-child)::after { content: ''; position: absolute; left: 15px; top: 32px; width: 2px; height: calc(100% - 8px); background: var(--border); }
  .step-icon { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 14px; flex-shrink: 0; background: var(--card); border: 2px solid var(--border); }
  .step-icon.done { background: var(--green); border-color: var(--green); color: #fff; }
  .step-icon.running { background: var(--accent); border-color: var(--accent); color: #fff; animation: pulse 1.5s infinite; }
  .step-icon.error { background: var(--red); border-color: var(--red); color: #fff; }
  @keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.6; } }
  .step-content { flex: 1; }
  .step-title { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
  .step-desc { font-size: 12px; color: var(--muted); line-height: 1.5; }
  .step-data { margin-top: 8px; padding: 10px; background: var(--card); border-radius: 8px; font-size: 12px; line-height: 1.6; white-space: pre-wrap; max-height: 200px; overflow-y: auto; }

  .progress-bar { height: 4px; background: var(--card); border-radius: 2px; margin-top: 16px; margin-bottom: 20px; overflow: hidden; }
  .progress-fill { height: 100%; background: var(--accent); border-radius: 2px; transition: width 0.5s ease; }

  .video-preview { margin-top: 16px; border-radius: 12px; overflow: hidden; background: #000; }
  .video-preview video { width: 100%; max-height: 360px; }
  .video-actions { display: flex; gap: 8px; margin-top: 12px; }
  .video-actions button { flex: 1; padding: 10px; border-radius: 8px; border: 1px solid var(--border); background: var(--card); color: var(--text); font-size: 13px; cursor: pointer; }
  .video-actions button:hover { border-color: var(--accent); }
  .video-actions button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
  .mcp-publish-btn { display: flex; align-items: center; justify-content: center; gap: 6px; width: 100%; padding: 12px; border-radius: 10px; border: none; background: linear-gradient(135deg, #fe2c55, #ff6b81); color: #fff; font-size: 14px; font-weight: 700; cursor: pointer; transition: all 0.2s; margin-top: 8px; }
  .mcp-publish-btn:hover { opacity: 0.9; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(254,44,85,0.4); }
  .mcp-publish-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }
  .mcp-status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 4px; }
  .mcp-status-dot.online { background: var(--green); }
  .mcp-status-dot.offline { background: var(--red); }

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

  /* Account section in task panel - compact */
  #accountSection .account-card { padding: 10px; margin-bottom: 6px; }
  #accountSection .account-card-header { margin-bottom: 4px; }
  #accountSection .account-platform-icon { width: 30px; height: 30px; font-size: 14px; border-radius: 8px; }
  #accountSection .account-card-info h3 { font-size: 12px; }
  #accountSection .account-card-info p { font-size: 10px; }
  #accountSection .account-card-actions { gap: 4px; margin-top: 6px; flex-wrap: wrap; }
  #accountSection .account-card-actions button { padding: 3px 8px; font-size: 11px; border-radius: 4px; }
  #accountSection .add-account-form { padding: 10px; margin-top: 8px; }
  #accountSection .add-account-form h3 { font-size: 13px; margin-bottom: 8px; }
  #accountSection .form-row { flex-direction: column; gap: 6px; }
  #accountSection .form-group { margin-bottom: 0; }
  #accountSection .form-group input, #accountSection .form-group select { font-size: 12px; padding: 6px 10px; }
  #accountSection .account-group-header { font-size: 12px; padding: 6px 10px; }
  #accountSection .btn-add { padding: 8px; font-size: 13px; }
  #accountSection .auth-badge { font-size: 10px; padding: 1px 5px; }
  #accountSection .account-status-badge { font-size: 10px; }
  #accountSection .session-status { padding: 4px 8px; font-size: 11px; }
  #accountSection .pub-acc-check { width: 15px; height: 15px; }
  .empty-state .icon { font-size: 48px; margin-bottom: 16px; }
  .empty-state p { font-size: 14px; line-height: 1.6; }

  .script-edit { width: 100%; min-height: 120px; padding: 10px; border-radius: 8px; border: 1px solid var(--border); background: var(--card); color: var(--text); font-size: 13px; line-height: 1.6; resize: vertical; font-family: inherit; }
  .script-edit:focus { border-color: var(--accent); outline: none; }
  .script-actions { display: flex; gap: 8px; margin-top: 8px; }
  .script-actions button { padding: 6px 16px; border-radius: 6px; border: none; font-size: 12px; cursor: pointer; }
  .script-actions .save { background: var(--green); color: #fff; }
  .script-actions .cancel { background: var(--card); color: var(--text); border: 1px solid var(--border); }

  /* ========== Account Page ========== */
  .account-page { display: none; flex-direction: column; height: 100%; }
  .account-page.show { display: flex; }
  .chat-panel.hide { display: none; }
  .task-panel.hide { display: none; }

  .account-header { padding: 20px 24px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
  .account-header h2 { font-size: 16px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
  .btn-back { padding: 8px 16px; border-radius: 8px; border: 1px solid var(--border); background: var(--card); color: var(--text); font-size: 13px; cursor: pointer; }
  .btn-back:hover { border-color: var(--accent); }

  .account-list { flex: 1; overflow-y: auto; padding: 20px; }
  .account-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; margin-bottom: 12px; transition: all 0.2s; }
  .account-card:hover { border-color: var(--accent); }
  .account-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
  .account-card-left { display: flex; align-items: center; gap: 12px; }
  .account-platform-icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 20px; }
  .account-platform-icon.chanjing { background: #1a1a2e; }
  .account-platform-icon.douyin { background: #1a0a1a; }
  .account-platform-icon.wechat_mp { background: #0a1a0e; }
  .account-platform-icon.douyin_api { background: #1a0a1a; }
  .account-platform-icon.custom { background: #1a1a1a; }
  .account-card-info h3 { font-size: 14px; font-weight: 600; }
  .account-card-info p { font-size: 12px; color: var(--muted); }
  .account-status { font-size: 11px; padding: 2px 8px; border-radius: 10px; }
  .account-status.active { background: rgba(34,197,94,0.15); color: var(--green); }
  .account-status.inactive { background: rgba(148,163,184,0.15); color: var(--muted); }

  .account-card-body { font-size: 12px; color: var(--muted); padding: 8px 0; border-top: 1px solid var(--border); margin-top: 8px; }

  /* Auth type badge */
  .auth-badge { display: inline-flex; align-items: center; gap: 4px; font-size: 11px; padding: 2px 8px; border-radius: 6px; margin-left: 8px; }
  .auth-badge.api { background: rgba(59,130,246,0.15); color: var(--accent); }
  .auth-badge.login { background: rgba(249,115,22,0.15); color: var(--orange); }

  /* Session status for login accounts */
  .session-status { margin-top: 8px; padding: 8px 12px; border-radius: 8px; font-size: 12px; }
  .session-status.none { background: rgba(148,163,184,0.1); color: var(--muted); }
  .session-status.verified { background: rgba(34,197,94,0.1); color: var(--green); }
  .session-status.pending { background: rgba(234,179,8,0.1); color: var(--yellow); }
  .session-status.expired { background: rgba(239,68,68,0.1); color: var(--red); }

  .account-card-actions { display: flex; gap: 8px; margin-top: 10px; }
  .account-card-actions button { padding: 6px 12px; border-radius: 6px; border: 1px solid var(--border); background: var(--card); color: var(--text); font-size: 12px; cursor: pointer; transition: all 0.2s; }
  .account-card-actions button:hover { border-color: var(--accent); }
  .account-card-actions button.test { border-color: var(--accent); color: var(--accent); }
  .account-card-actions button.del { color: var(--red); }
  .test-result { margin-top: 8px; padding: 8px 12px; border-radius: 8px; font-size: 12px; animation: fadeIn 0.3s; }
  .test-result.success { background: rgba(34,197,94,0.1); color: var(--green); }
  .test-result.fail { background: rgba(239,68,68,0.1); color: var(--red); }
  @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

  /* Add account form */
  .add-account-form { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; margin-top: 16px; }
  .add-account-form h3 { font-size: 14px; font-weight: 600; margin-bottom: 12px; }
  .form-row { display: flex; gap: 12px; margin-bottom: 12px; }
  .form-group { flex: 1; }
  .form-group label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
  .form-group input, .form-group select { width: 100%; padding: 8px 12px; border-radius: 6px; border: 1px solid var(--border); background: var(--bg); color: var(--text); font-size: 13px; outline: none; }
  .form-group input:focus, .form-group select:focus { border-color: var(--accent); }
  .form-hint { font-size: 11px; color: var(--muted); margin-top: 2px; }

  /* Auth type indicator in add form */
  .auth-type-indicator { margin-bottom: 12px; padding: 10px 14px; border-radius: 8px; font-size: 12px; line-height: 1.6; }
  .auth-type-indicator.api-mode { background: rgba(59,130,246,0.1); border: 1px solid rgba(59,130,246,0.2); }
  .auth-type-indicator.login-mode { background: rgba(249,115,22,0.1); border: 1px solid rgba(249,115,22,0.2); }

  .btn-add { width: 100%; padding: 10px; border-radius: 8px; border: none; background: var(--accent); color: #fff; font-size: 14px; font-weight: 600; cursor: pointer; margin-top: 8px; }
  .btn-add:hover { opacity: 0.85; }
/* 历史作品区 */
#historySection { transition: all 0.2s; }
.history-card {
  width: 120px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--card); cursor: pointer; overflow: hidden; transition: all 0.2s;
  flex-shrink: 0;
}
.history-card:hover { border-color: var(--accent); transform: translateY(-1px); }
.history-card-thumb { width: 100%; height: 68px; object-fit: cover; background: #000; }
.history-card-info { padding: 6px 8px; }
.history-card-title { font-size: 11px; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.history-card-status { font-size: 10px; color: var(--muted); margin-top: 2px; }

/* ========== Toast 通知 ========== */
#toastContainer { position: fixed; top: 16px; left: 50%; transform: translateX(-50%); z-index: 10000; display: flex; flex-direction: column; gap: 8px; pointer-events: none; }
.toast { padding: 10px 18px; border-radius: 10px; font-size: 13px; color: #fff; box-shadow: 0 4px 20px rgba(0,0,0,0.4); animation: toastIn 0.3s ease; min-width: 160px; max-width: 320px; pointer-events: auto; display: flex; align-items: center; gap: 8px; }
.toast-success { background: rgba(34,197,94,0.95); }
.toast-error { background: rgba(239,68,68,0.95); }
.toast-info { background: rgba(59,130,246,0.95); }
@keyframes toastIn { from { opacity:0; transform: translateX(30px); } to { opacity:1; transform: translateX(0); } }
@keyframes toastOut { from { opacity:1; transform: translateX(0); } to { opacity:0; transform: translateX(30px); } }
.upload-spinner { display: inline-block; width: 12px; height: 12px; border: 2px solid rgba(255,255,255,0.3); border-top-color: #fff; border-radius: 50%; animation: spin 0.6s linear infinite; vertical-align: middle; margin-right: 4px; }
@keyframes spin { to { transform: rotate(360deg); } }
.upload-btn.disabled { opacity: 0.5; pointer-events: none; cursor: not-allowed; }