/* ============================================================
   StepForward Demo · 样式文件 v1.0
   设计语言与 PRD/产品提案保持一致
   ============================================================ */

/* ===== 设计变量 ===== */
/* 语义层 + 兼容层由 themes/tokens-base.css 提供，此处不再重复定义 */

/* ===== 基础重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(ellipse 50% 30% at 90% 0%, color-mix(in srgb, var(--accent) 5%, transparent) 0%, transparent 70%),
    radial-gradient(ellipse 40% 25% at 10% 100%, color-mix(in srgb, var(--accent2) 5%, transparent) 0%, transparent 70%);
  z-index: -1;
  pointer-events: none;
}

/* ===== App 容器 ===== */
.app-container {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  background: var(--bg);
  position: relative;
}

/* ===== 顶部导航 ===== */
.app-header {
  padding: 16px 20px;
  background: linear-gradient(135deg, var(--warm-bg) 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}
.app-header .logo {
  font-weight: 700;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.app-header .date {
  font-size: 12px;
  color: var(--muted);
}
.app-header .settings-btn {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 8px;
  color: var(--muted);
  transition: all 0.2s;
}
.app-header .settings-btn:hover {
  background: var(--accent2-soft);
  color: var(--accent2);
}

/* ===== 内容区域 ===== */
.app-body {
  padding: 16px 20px 100px;
}

.section-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  margin-top: 20px;
}
.section-title:first-child { margin-top: 0; }

/* ===== 输入框 ===== */
.input-box {
  display: flex;
  gap: 8px;
  padding: 10px 12px;
  background: var(--bg2);
  border: 1px solid var(--rule);
  border-radius: 12px;
  align-items: center;
  transition: all 0.2s;
}
.input-box:focus-within {
  border-color: var(--accent2);
  box-shadow: 0 0 0 3px var(--accent2-soft);
}
.input-box input {
  flex: 1;
  border: none;
  background: transparent;
  font-family: inherit;
  font-size: 14px;
  outline: none;
  color: var(--ink);
}
.input-box input::placeholder { color: var(--muted); }
.send-btn {
  width: 32px; height: 32px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}
.send-btn:hover { transform: scale(1.05); }
.send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}
.send-btn.loading {
  animation: pulse 1.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* ===== 任务卡片 ===== */
.task-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  background: var(--bg2);
  border: 1px solid var(--rule);
  border-radius: 12px;
  margin-bottom: 8px;
  transition: all 0.2s;
}
.task-item:hover {
  box-shadow: 0 4px 16px color-mix(in srgb, var(--ink) 6%, transparent);
}
.task-item.done {
  opacity: 0.5;
  background: var(--calm-bg);
}
.task-item.done .task-text { text-decoration: line-through; }

.task-checkbox {
  width: 22px; height: 22px;
  border-radius: 7px;
  border: 2px solid var(--accent3);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--accent3);
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 1px;
}
.task-checkbox:hover {
  background: var(--accent3-soft);
}
.task-item.done .task-checkbox {
  background: var(--accent3);
  color: #fff;
}

.task-content { flex: 1; min-width: 0; }
.task-text {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 3px;
  word-break: break-word;
}
.task-meta {
  font-size: 11px;
  color: var(--muted);
}
.task-actions {
  display: flex;
  gap: 6px;
  margin-top: 10px;
}
.task-btn {
  padding: 5px 12px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
}
.task-btn.done-btn {
  background: var(--accent3-soft);
  color: var(--accent3);
}
.task-btn.done-btn:hover { background: var(--accent3); color: #fff; }
.task-btn.wait-btn {
  background: color-mix(in srgb, var(--warn) 15%, transparent);
  color: var(--warn);
}
.task-btn.wait-btn:hover { background: var(--warn); color: #fff; }

/* ===== AI 拆解结果加载态 ===== */
.loading-card {
  padding: 20px;
  background: var(--warm-bg);
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
  border-radius: 12px;
  text-align: center;
  margin-bottom: 8px;
}
.loading-card .spinner {
  width: 24px; height: 24px;
  border: 3px solid var(--accent-soft);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 10px;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-card .loading-text {
  font-size: 13px;
  color: var(--accent);
}

/* ===== 聊天气泡（情绪干预用）===== */
.chat-area {
  background: var(--bg);
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 12px;
  border: 1px solid var(--rule);
}
.chat-bubble {
  max-width: 90%;
  padding: 10px 14px;
  border-radius: 16px;
  margin-bottom: 10px;
  font-size: 13px;
  line-height: 1.65;
  animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}
.chat-bubble.user {
  margin-left: auto;
  background: var(--accent2);
  color: #fff;
  border-bottom-right-radius: 5px;
}
.chat-bubble.ai {
  margin-right: auto;
  background: var(--warm-bg);
  color: var(--ink);
  border-bottom-left-radius: 5px;
}
.chat-bubble .speaker {
  display: block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 3px;
  opacity: 0.7;
}

/* ===== 情绪选择器 ===== */
.mood-selector {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  justify-content: center;
}
.mood-btn {
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--bg2);
  border: 1px solid var(--rule);
  font-size: 12.5px;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--ink);
}
.mood-btn:hover {
  border-color: var(--accent2);
  background: var(--accent2-soft);
  transform: translateY(-1px);
}

/* ===== 呼吸引导动画 ===== */
.breathing-guide {
  text-align: center;
  padding: 20px;
  background: var(--calm-bg);
  border-radius: 14px;
  margin: 12px 0;
}
.breathing-circle {
  width: 80px; height: 80px;
  margin: 0 auto 12px;
  border-radius: 50%;
  background: var(--accent3);
  opacity: 0.4;
  animation: breathe 19s ease-in-out infinite;
}
@keyframes breathe {
  0%, 100% { transform: scale(0.6); opacity: 0.3; }
  21% { transform: scale(1); opacity: 0.6; }      /* 吸气 4s (0-4s) */
  58% { transform: scale(1); opacity: 0.6; }      /* 屏息 7s (4-11s) */
  100% { transform: scale(0.6); opacity: 0.3; }    /* 呼气 8s (11-19s) */
}
.breathing-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent3);
  margin-bottom: 4px;
}
.breathing-sub {
  font-size: 12px;
  color: var(--muted);
}

/* ===== 底部操作栏 ===== */
.bottom-actions {
  position: fixed;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  padding: 12px 20px;
  background: color-mix(in srgb, var(--bg) 95%, transparent);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--rule);
  display: flex;
  gap: 10px;
}
.bottom-actions .action-btn {
  flex: 1;
  padding: 12px;
  border-radius: 12px;
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.action-btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
}
.action-btn.primary:hover { transform: translateY(-1px); box-shadow: 0 4px 12px color-mix(in srgb, var(--accent) 30%, transparent); }
.action-btn.secondary {
  background: var(--bg2);
  color: var(--ink);
  border: 1px solid var(--rule);
}
.action-btn.secondary:hover { border-color: var(--accent2); }

/* ===== API Key 配置页 ===== */
.setup-page {
  max-width: 480px;
  margin: 0 auto;
  padding: 60px 24px;
}
.setup-logo {
  text-align: center;
  margin-bottom: 32px;
}
.setup-logo .emoji { font-size: 48px; margin-bottom: 12px; }
.setup-logo h1 {
  font-size: 28px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--ink) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}
.setup-logo p {
  color: var(--muted);
  font-size: 14px;
}

.api-config {
  background: var(--warm-bg);
  border-radius: 16px;
  padding: 24px;
  border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
}
.api-config h3 {
  font-size: 18px;
  margin-bottom: 8px;
  color: var(--accent);
}
.api-config .desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 16px;
}
.api-input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--rule);
  border-radius: 10px;
  font-family: 'SF Mono', Menlo, monospace;
  font-size: 12px;
  background: var(--bg2);
  color: var(--ink);
  margin-bottom: 10px;
  outline: none;
  transition: all 0.2s;
}
.api-input:focus {
  border-color: var(--accent2);
  box-shadow: 0 0 0 3px var(--accent2-soft);
}
.api-select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--rule);
  border-radius: 10px;
  font-size: 13px;
  background: var(--bg2);
  color: var(--ink);
  margin-bottom: 10px;
  outline: none;
  cursor: pointer;
}
.api-save {
  width: 100%;
  padding: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.api-save:hover { transform: translateY(-1px); box-shadow: 0 4px 12px color-mix(in srgb, var(--accent) 30%, transparent); }
.api-save:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.privacy-note {
  margin-top: 16px;
  padding: 12px;
  background: var(--accent3-soft);
  border-radius: 10px;
  font-size: 12px;
  color: var(--accent3);
  line-height: 1.6;
}

/* ===== Toast 提示 ===== */
.toast {
  position: fixed;
  top: 20px; left: 50%;
  transform: translateX(-50%) translateY(-100px);
  padding: 12px 20px;
  background: var(--ink);
  color: #fff;
  border-radius: 12px;
  font-size: 13px;
  z-index: 9999;
  transition: transform 0.3s ease;
  max-width: 90%;
  text-align: center;
}
.toast.show { transform: translateX(-50%) translateY(0); }
.toast.error { background: var(--sf-error); }
.toast.success { background: var(--accent3); }

/* ===== 模态框 ===== */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--sf-overlay);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.show { display: flex; }
/* 防冻结安全网：未显示（无 .show 类）的弹窗永不拦截点击，
   根治"隐形遮罩挡住全页面点击"导致的按钮失灵 */
.modal-overlay:not(.show) { pointer-events: none; }
.modal {
  background: var(--bg);
  border-radius: 16px;
  width: 100%;
  max-width: 420px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 24px;
  animation: modalIn 0.3s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.modal h3 {
  font-size: 18px;
  margin-bottom: 16px;
  margin-top: 0;
}
.modal .modal-close {
  position: absolute;
  top: 16px; right: 16px;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--muted);
  line-height: 1;
}

/* ===== 空状态 ===== */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--muted);
}
.empty-state .emoji { font-size: 36px; margin-bottom: 12px; }
.empty-state p { font-size: 13px; }

/* ===== 计数按钮（待办/已完成） ===== */
.counter-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: transform 0.15s ease;
}
.counter-btn:hover { transform: scale(1.05); }
.counter-btn.pending { background: var(--accent-soft); color: var(--accent); }
.counter-btn.done { background: var(--accent3-soft); color: var(--accent3); }

/* ===== 今日日期 ===== */
.today-date {
  font-size: 12px;
  color: var(--muted);
  text-align: right;
  margin-bottom: 8px;
}

/* ===== 语音输入按钮 ===== */
.voice-btn {
  background: var(--accent2-soft);
  color: var(--accent2);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
}
.voice-btn:hover { background: var(--accent2); color: #fff; }

/* 输入框有语音按钮时的布局 */
.input-box:has(.voice-btn) input {
  border-radius: 0 10px 10px 0;
}
.input-box:has(.voice-btn) .voice-btn {
  border-radius: 10px 0 0 10px;
}

/* ===== 下一个待办卡片 ===== */
.next-task-card {
  background: linear-gradient(135deg, var(--bg2) 0%, var(--bg) 100%);
  border: 1px solid var(--rule);
  border-radius: 16px;
  padding: 20px;
  margin-top: 12px;
  box-shadow: 0 4px 20px color-mix(in srgb, var(--ink) 6%, transparent);
}
.next-task-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 6px;
}
.next-task-text {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
  margin-bottom: 8px;
}
.next-task-meta {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 16px;
}
.next-task-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ===== 动作按钮 ===== */
.action-btn {
  padding: 12px 16px;
  border-radius: 10px;
  border: none;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}
.action-btn:hover { transform: translateY(-1px); }
.action-btn:active { transform: translateY(0); }
.action-btn.primary {
  background: linear-gradient(135deg, var(--accent3), color-mix(in srgb, var(--accent3) 70%, black));
  color: #fff;
  flex: 1;
}
.action-btn.secondary {
  background: var(--bg2);
  color: var(--accent);
  border: 1px solid var(--accent-soft);
  flex: 1;
}
.action-btn.ghost {
  background: var(--bg);
  color: var(--muted);
  border: 1px solid var(--rule);
  padding: 12px;
  min-width: 44px;
}
.action-btn.danger {
  background: color-mix(in srgb, var(--sf-error) 10%, transparent);
  color: var(--sf-error);
  border: 1px solid color-mix(in srgb, var(--sf-error) 20%, transparent);
}

/* ===== 加载卡片 ===== */
.loading-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: var(--warm-bg);
  border-radius: 12px;
  margin-bottom: 12px;
}
.loading-card .spinner {
  width: 18px;
  height: 18px;
  border: 2px solid var(--accent-soft);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.loading-text {
  font-size: 13px;
  color: var(--muted);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== 聊天气泡在任务区域 ===== */
#nextTaskContainer .chat-bubble {
  max-width: 100% !important;
  margin: 8px 0 !important;
}

/* ===== 按钮尺寸变体 ===== */
.action-btn.tiny {
  padding: 4px 8px !important;
  font-size: 14px !important;
  min-width: 32px !important;
  line-height: 1;
}
.action-btn.small {
  padding: 8px 12px !important;
  font-size: 12.5px !important;
}
.action-btn.celebrate {
  background: linear-gradient(135deg, var(--warn), var(--accent)) !important;
  color: #fff !important;
  border: none !important;
}

/* ===== 清单事件头 ===== */
.list-event-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--accent-soft);
  border-radius: 8px;
  margin-bottom: 8px;
  transition: background 0.2s ease;
}
.list-event-header:hover {
  background: color-mix(in srgb, var(--accent) 20%, transparent);
}

/* ===== 庆祝动画 ===== */
@keyframes celebrate-pop {
  0% { transform: translate(-50%, -50%) scale(0); opacity: 0; }
  50% { transform: translate(-50%, -50%) scale(1.3); opacity: 1; }
  100% { transform: translate(-50%, -50%) scale(1); opacity: 0; }
}
@keyframes celebrate-float {
  0% { transform: translateY(0) scale(0.5); opacity: 0; }
  30% { transform: translateY(-30px) scale(1.2); opacity: 1; }
  100% { transform: translateY(-100px) scale(0.8); opacity: 0; }
}

/* ===== 情绪弹窗固定输入框 ===== */
.emotion-modal {
  max-height: 85vh !important;
}

/* ===== 响应式 ===== */
@media (max-width: 480px) {
  .app-container { max-width: 100%; }
  .bottom-actions { max-width: 100%; }
  .next-task-text { font-size: 16px; }
  .action-btn { padding: 10px 14px; font-size: 13px; }
}

/* ===== 清单筛选按钮 ===== */
.filter-btn {
  padding: 4px 14px;
  border-radius: 100px;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
}
.filter-btn:hover {
  background: var(--bg2);
}
.filter-btn-active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
  font-weight: 600;
}

/* ===== 骨架屏 ===== */
.skeleton-card {
  background: linear-gradient(135deg, var(--bg2) 0%, var(--bg) 100%);
  border: 1px solid var(--rule);
  border-radius: 16px;
  padding: 20px;
  margin-top: 12px;
}
.skeleton-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 8px;
}
.skeleton-line {
  height: 14px;
  background: linear-gradient(90deg, var(--rule) 25%, var(--bg2) 50%, var(--rule) 75%);
  background-size: 200% 100%;
  border-radius: 7px;
  animation: shimmer 1.5s ease-in-out infinite;
}
.skeleton-line.short { width: 30%; }
.skeleton-line.medium { width: 60%; }
.skeleton-line.long { width: 90%; }
.skeleton-line.title { height: 22px; border-radius: 8px; margin-bottom: 12px; }
.skeleton-actions {
  display: flex;
  gap: 8px;
  margin-top: 20px;
}
.skeleton-btn {
  flex: 1;
  height: 42px;
  border-radius: 10px;
  background: linear-gradient(90deg, var(--rule) 25%, var(--bg2) 50%, var(--rule) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
}
.skeleton-badge {
  width: 60px;
  height: 20px;
  border-radius: 100px;
  background: linear-gradient(90deg, var(--rule) 25%, var(--bg2) 50%, var(--rule) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
}
.skeleton-time {
  width: 70px;
  height: 16px;
  border-radius: 8px;
  background: linear-gradient(90deg, var(--rule) 25%, var(--bg2) 50%, var(--rule) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ===== 夸奖弹窗安全网 ===== */
.praise-overlay { pointer-events: auto; }
.praise-overlay.removing { pointer-events: none; }

/* ===== 复制按钮 ===== */
.copy-btn {
  padding: 6px 12px;
  border-radius: 8px;
  border: 1px solid var(--rule);
  background: var(--bg2);
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.copy-btn:hover {
  border-color: var(--accent2);
  color: var(--accent2);
  background: var(--accent2-soft);
}
.copy-btn:active {
  transform: scale(0.96);
}

/* ===== 主题选择器 ===== */
.theme-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 6px;
  border: 1.5px solid var(--rule);
  border-radius: 10px;
  background: var(--bg2);
  cursor: pointer;
  transition: all 0.2s;
}
.theme-card:hover {
  border-color: var(--accent2);
  transform: translateY(-1px);
}
.theme-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 25%, transparent);
}
.theme-swatch {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.8);
  box-shadow: 0 1px 4px rgba(0,0,0,0.12);
}
.theme-card-label {
  font-size: 11px;
  color: var(--muted);
  text-align: center;
  line-height: 1.3;
}
.theme-card.selected .theme-card-label {
  color: var(--accent);
  font-weight: 600;
}

/* ===== 夜间模式三态按钮 ===== */
.theme-mode-btn {
  flex: 1;
  padding: 9px 6px;
  border-radius: 10px;
  border: 1px solid var(--rule);
  background: var(--bg2);
  color: var(--ink);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}
.theme-mode-btn:hover {
  border-color: var(--accent2);
  background: var(--accent2-soft);
}
.theme-mode-btn.active {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 2px 8px color-mix(in srgb, var(--accent) 30%, transparent);
}

/* ===== 成长日记 ===== */
.diary-item {
  background: var(--bg2);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: 10px 12px;
}
.diary-item-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.diary-type-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 100px;
  font-weight: 600;
  white-space: nowrap;
}
.diary-type-badge.achievement { background: color-mix(in srgb, var(--accent3) 12%, transparent); color: var(--accent3); }
.diary-type-badge.manual { background: color-mix(in srgb, var(--accent2) 12%, transparent); color: var(--accent2); }
.diary-type-badge.bedtime { background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); }
.diary-item-content {
  font-size: 13px;
  color: var(--ink);
  line-height: 1.6;
  word-break: break-word;
}
.diary-item-content p { margin: 0 0 6px; }
.diary-item-content p:last-child { margin-bottom: 0; }

/* AI 回应区块 */
.diary-ai-response {
  margin-top: 8px;
  padding: 10px 12px;
  background: color-mix(in srgb, var(--accent) 6%, transparent);
  border-left: 3px solid color-mix(in srgb, var(--accent) 40%, transparent);
  border-radius: 8px;
  display: flex;
  gap: 6px;
  align-items: flex-start;
}
.diary-ai-icon { flex-shrink: 0; font-size: 14px; line-height: 1.6; }
.diary-ai-text {
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.6;
  word-break: break-word;
}
.diary-ai-text p { margin: 0 0 4px; }
.diary-ai-text p:last-child { margin-bottom: 0; }

.diary-edit {
  opacity: 0.5;
  transition: opacity 0.2s;
}
.diary-edit:hover { opacity: 1; }

/* ===== 日记编辑器：心情标签 & 预览标签 ===== */
.mood-chip {
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--rule);
  background: var(--bg2);
  font-size: 12px;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.2s;
}
.mood-chip:hover {
  border-color: var(--accent2);
  background: var(--accent2-soft);
}
.mood-chip-active {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border-color: transparent;
  font-weight: 600;
}
.diary-tab {
  padding: 6px 14px;
  border-radius: 8px;
  border: 1px solid var(--rule);
  background: var(--bg2);
  font-size: 12.5px;
  color: var(--ink);
  cursor: pointer;
  transition: all 0.2s;
}
.diary-tab:hover {
  border-color: var(--accent2);
}
.diary-tab-active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}
#diaryPreview h1, #diaryPreview h2, #diaryPreview h3 { margin: 8px 0 6px; line-height: 1.4; }
#diaryPreview p { margin: 0 0 8px; }
#diaryPreview ul, #diaryPreview ol { margin: 0 0 8px; padding-left: 20px; }
#diaryPreview blockquote { border-left: 3px solid var(--accent); margin: 0 0 8px; padding: 2px 10px; color: var(--muted); }
#diaryPreview code { background: var(--accent-soft); padding: 1px 5px; border-radius: 4px; font-size: 12px; }
#diaryPreview a { color: var(--accent2); }

/* ============================================================
   A5 · 微动画与过渡升级
   ============================================================ */

/* -- 卡片入场：上浮淡入 -- */
@keyframes cardIn {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
.task-item, .next-task-card, .diary-item {
  animation: cardIn 0.35s cubic-bezier(0.22, 0.61, 0.36, 1) both;
}
/* 列表交错入场：按顺序依次延迟 */
#nextTaskContainer .next-task-card, #taskList .task-item { animation-delay: 0.05s; }

/* -- 按钮微动效：按压回弹 -- */
button, .btn, .action-btn, .mood-btn, .task-btn, .theme-card, .theme-mode-btn, .mood-chip, .diary-tab, .counter-btn, .copy-btn, .filter-btn, .send-btn {
  -webkit-tap-highlight-color: transparent;
}
button:active, .action-btn:active, .mood-btn:active, .task-btn:active, .theme-card:active,
.theme-mode-btn:active, .mood-chip:active, .diary-tab:active, .counter-btn:active,
.copy-btn:active, .filter-btn:active, .send-btn:active {
  transform: scale(0.96);
  transition-duration: 0.08s;
}

/* -- 弹窗过渡：遮罩淡入 + 面板上浮 -- */
.modal-overlay {
  opacity: 0;
  transition: opacity 0.22s ease;
}
.modal-overlay.show {
  opacity: 1;
  transition: opacity 0.22s ease;
}
.modal-overlay .modal {
  transform: translateY(16px) scale(0.98);
  opacity: 0;
  transition: transform 0.24s cubic-bezier(0.22, 0.61, 0.36, 1), opacity 0.22s ease;
}
.modal-overlay.show .modal {
  transform: translateY(0) scale(1);
  opacity: 1;
}

/* -- 列表增删过渡：添加淡入、移除淡出+收起 -- */
.task-item.removing, .diary-item.removing {
  animation: cardOut 0.25s ease forwards;
}
@keyframes cardOut {
  to { opacity: 0; transform: translateX(24px) scale(0.96); max-height: 0; padding-top: 0; padding-bottom: 0; margin-bottom: 0; overflow: hidden; }
}

/* -- 计数徽标跳动 -- */
.counter-btn .count {
  transition: transform 0.2s ease;
}
.counter-btn.bump .count {
  animation: bump 0.3s ease;
}
@keyframes bump {
  0% { transform: scale(1); }
  40% { transform: scale(1.35); }
  100% { transform: scale(1); }
}

/* -- 主题切换时的柔和过渡 -- */
body, .app-container, .app-header, .task-item, .input-box, .modal, .chat-bubble, .api-config, .bottom-actions {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* -- 尊重系统减弱动效偏好 -- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   用户引导模块
   ============================================================ */

/* ===== 开屏引导页 ===== */
.welcome-screen {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(180deg, var(--warm-bg) 0%, var(--bg) 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  z-index: 10000;
  animation: fadeIn 0.5s ease;
}

.welcome-brand {
  text-align: center;
  margin-bottom: 40px;
}

.welcome-icon {
  font-size: 64px;
  margin-bottom: 16px;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.welcome-title {
  font-size: 36px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.welcome-tagline {
  font-size: 16px;
  color: var(--muted);
  font-weight: 500;
}

.welcome-content {
  max-width: 360px;
  text-align: center;
  margin-bottom: 40px;
}

.welcome-desc {
  font-size: 15px;
  line-height: 2;
  color: var(--ink);
}

.welcome-start-btn {
  padding: 16px 48px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border: none;
  border-radius: 100px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px color-mix(in srgb, var(--accent) 30%, transparent);
}

.welcome-start-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px color-mix(in srgb, var(--accent) 40%, transparent);
}

.welcome-footer {
  position: absolute;
  bottom: 24px;
  text-align: center;
}

/* ===== 渐进式导览遮罩 ===== */
.tour-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.3s ease;
}

/* 防冻结安全网：未显示的导览遮罩永不拦截点击 */
.tour-overlay:not(.show) { pointer-events: none; }

.tour-overlay.show {
  opacity: 1;
}

/* 幽灵模式：遮罩不拦截点击（用户可操作真实界面），隐藏黑幕；
   气泡本身保持可点击（跳过/上一步等按钮可用） */
.tour-overlay.ghost { pointer-events: none; }
.tour-overlay.ghost .tour-tooltip { pointer-events: auto; }
.tour-overlay.ghost .tour-mask { display: none; }

/* 聚光灯模式：黑幕变透明（仍作为点击捕获层），由 .tour-spotlight 负责挖洞 */
.tour-overlay.spotlight-mode .tour-mask { background: transparent; }

.tour-mask {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 1;
}

/* 聚光灯：box-shadow 挖洞效果，高亮目标区域且不改变页面布局 */
.tour-spotlight {
  position: fixed;
  border-radius: 12px;
  box-shadow: 0 0 0 4px var(--accent2), 0 0 0 9999px rgba(0, 0, 0, 0.6);
  pointer-events: none;
  z-index: 2;
  transition: all 0.3s ease;
}

/* 交互步骤高亮：仅 outline 脉冲光圈，不改布局、不影响点击 */
.tour-highlight-live {
  outline: 3px solid var(--accent2);
  outline-offset: 3px;
  border-radius: 12px;
  animation: tourLivePulse 1.6s ease-in-out infinite;
}
@keyframes tourLivePulse {
  0%, 100% { outline-color: var(--accent2); box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent2) 40%, transparent); }
  50% { outline-color: var(--accent); box-shadow: 0 0 0 8px transparent; }
}

/* 前4步虚线转动高亮：outline 颜色+间距交替，不改布局、不影响点击 */
.tour-highlight-dashed {
  outline: 3px dashed var(--accent2);
  outline-offset: 3px;
  border-radius: 12px;
  animation: tourDashedRotate 2s linear infinite;
}
@keyframes tourDashedRotate {
  0% { outline-color: var(--accent2); outline-offset: 3px; }
  50% { outline-color: var(--accent); outline-offset: 6px; }
  100% { outline-color: var(--accent2); outline-offset: 3px; }
}

.tour-tooltip {
  position: absolute;
  z-index: 3;
  max-width: 320px;
  padding: 20px;
  background: var(--bg);
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  animation: tooltipIn 0.3s ease;
  cursor: grab;
  touch-action: auto;
}

/* 拖动时才禁止滚动，避免与页面滚动冲突 */
.tour-tooltip.dragging {
  cursor: grabbing;
  user-select: none;
  -webkit-user-select: none;
  pointer-events: auto;
  z-index: 10000;
  transition: none;
  touch-action: none;
}

/* 按钮区域保持 pointer 光标 */
.tour-tooltip .tour-controls,
.tour-tooltip .tour-controls button {
  cursor: pointer;
}

.tour-tooltip.center {
  left: 50% !important;
  top: 50% !important;
  transform: translate(-50%, -50%) !important;
}

@keyframes tooltipIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.tour-tooltip-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.tour-tooltip-header h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--accent2);
  margin: 0;
}

.tour-step-num {
  font-size: 12px;
  color: var(--muted);
  background: var(--bg2);
  padding: 4px 10px;
  border-radius: 100px;
}

.tour-tooltip-content {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
  margin-bottom: 16px;
}

.tour-controls {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: flex-end;
}

.tour-skip-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  padding: 8px 12px;
  transition: color 0.2s;
}

.tour-skip-btn:hover {
  color: var(--accent2);
}

.tour-prev-btn, .tour-next-btn {
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.tour-prev-btn {
  background: var(--bg2);
  border: 1px solid var(--rule);
  color: var(--muted);
}

.tour-prev-btn:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.tour-next-btn {
  background: var(--accent2);
  border: none;
  color: #fff;
}

.tour-next-btn:hover {
  background: var(--accent);
}

/* ============================================================
   睡前安心仪式模块
   ============================================================ */

/* ===== 睡前仪式入口按钮 ===== */
.bedtime-ritual-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  padding: 14px 20px;
  background: linear-gradient(135deg, rgba(139,111,142,0.1) 0%, rgba(139,111,142,0.05) 100%);
  border: 1px solid rgba(139,111,142,0.2);
  border-radius: 16px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
  width: 100%;
}

.bedtime-ritual-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(139,111,142,0.15);
}

/* ===== 睡前仪式弹窗夜间主题 ===== */
.bedtime-modal {
  background: linear-gradient(180deg, #1a1520 0%, #0d0a12 100%);
  color: #f0e6d8;
}

.bedtime-modal h3 {
  color: #c9a87c;
}

.bedtime-modal .action-btn.primary {
  background: linear-gradient(135deg, #c9a87c, #8b6f5e);
  color: #fff;
}

.bedtime-modal .action-btn.secondary {
  background: transparent;
  border-color: #6a5f55;
  color: #8a7f75;
}

/* ===== 日记卡片差异化样式 ===== */
.diary-item[data-type="achievement"] {
  --diary-accent: var(--accent3);
  background: linear-gradient(135deg, rgba(107,142,139,0.08) 0%, rgba(107,142,139,0.03) 100%);
  border-color: rgba(107,142,139,0.2);
}

.diary-item[data-type="manual"] {
  --diary-accent: var(--accent2);
  background: linear-gradient(135deg, rgba(201,139,123,0.08) 0%, rgba(201,139,123,0.03) 100%);
  border-color: rgba(201,139,123,0.2);
}

.diary-item[data-type="bedtime"] {
  --diary-accent: var(--accent);
  background: linear-gradient(135deg, rgba(139,111,142,0.08) 0%, rgba(139,111,142,0.03) 100%);
  border-color: rgba(139,111,142,0.2);
}

/* ===== 焦虑飘走动画 ===== */
@keyframes anxietyFadeOut {
  0% { opacity: 1; transform: translateY(0); }
  50% { opacity: 0.5; transform: translateY(-20px); }
  100% { opacity: 0; transform: translateY(-40px); }
}

.anxiety-fade-out {
  animation: anxietyFadeOut 2s ease-out forwards;
}

/* ===== 小确幸选项样式 ===== */
.gratitude-option {
  width: 100%;
  padding: 12px;
  background: var(--bg2);
  border: 1px solid var(--rule);
  border-radius: 10px;
  font-size: 13px;
  text-align: left;
  margin-bottom: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.gratitude-option:hover {
  border-color: var(--accent2);
}

.gratitude-option.selected {
  background: color-mix(in srgb, #c9a87c 15%, transparent);
  border-color: #c9a87c;
}

/* ===== 睡前仪式浮动球 ===== */
.bedtime-float-ball {
  position: fixed;
  bottom: 80px;
  right: 20px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1a1520 0%, #2d2340 100%);
  border: 2px solid rgba(201, 168, 124, 0.4);
  box-shadow: 0 4px 20px rgba(139, 111, 142, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: grab;
  z-index: 500;
  transition: box-shadow 0.3s, transform 0.1s;
  user-select: none;
  -webkit-user-select: none;
}

.bedtime-float-ball:hover {
  box-shadow: 0 6px 28px rgba(201, 168, 124, 0.5);
  transform: scale(1.08);
}

.bedtime-float-ball:active {
  cursor: grabbing;
  transform: scale(1.05);
}

.bedtime-float-ball.dragging {
  transition: none;
  box-shadow: 0 8px 32px rgba(201, 168, 124, 0.6);
}

.bedtime-float-icon {
  font-size: 24px;
  line-height: 1;
}

/* 睡前仪式确认弹窗 */
.bedtime-confirm-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: fadeIn 0.2s ease;
}

.bedtime-confirm-dialog {
  background: var(--bg);
  border-radius: 20px;
  padding: 28px 24px;
  max-width: 320px;
  width: 90%;
  box-shadow: 0 16px 48px rgba(0,0,0,0.2);
  text-align: center;
}

.bedtime-confirm-dialog h3 {
  font-size: 18px;
  color: var(--accent2);
  margin-bottom: 8px;
}

.bedtime-confirm-dialog p {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 24px;
  line-height: 1.6;
}

.bedtime-confirm-btns {
  display: flex;
  gap: 10px;
}

.bedtime-confirm-btns button {
  flex: 1;
  padding: 12px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-bedtime-wait {
  background: var(--bg2);
  border: 1px solid var(--rule);
  color: var(--muted);
}

.btn-bedtime-wait:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-bedtime-start {
  background: linear-gradient(135deg, #c9a87c, #8b6f5e);
  border: none;
  color: #fff;
}

.btn-bedtime-start:hover {
  background: linear-gradient(135deg, #d4b896, #9a7e6e);
}

/* 睡前仪式关闭按钮 */
.bedtime-close-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: none;
  color: #8a7f75;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  z-index: 10;
}

.bedtime-close-btn:hover {
  background: rgba(255,255,255,0.15);
  color: #f0e6d8;
}

/* ===== 设置折叠面板 ===== */
.settings-section {
  border-top: 1px solid var(--rule);
  padding-top: 8px;
  margin-bottom: 8px;
}

.settings-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
}

.settings-section-header:hover {
  opacity: 0.8;
}

.settings-section-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 6px;
}

.settings-section-arrow {
  font-size: 10px;
  transition: transform 0.25s ease;
  color: var(--muted);
}

.settings-section-arrow.open {
  transform: rotate(90deg);
}

.settings-section-body {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease;
}

.settings-section-body.open {
  max-height: 800px;
}