/* ===== 主题变量 ===== */
:root {
  --bg: #F0F2F5;
  --bg-card: #FFFFFF;
  --bg-card-hover: #F7F9FB;
  --bg-input: #F4F6F9;
  --bg-input-hover: #EDF0F4;
  --text: #1A1A2E;
  --text-2: #5A6276;
  --text-3: #9CA3AF;
  --border: #E2E6EC;
  --border-strong: #D1D6DE;
  --border-subtle: #EDF0F4;
  --primary: #185FA5;
  --primary-hover: #14528F;
  --primary-bg: #EAF2FB;
  --primary-bg-hover: #D8E8F7;
  --primary-text: #0C447C;
  --primary-border: #C5DEF5;
  --success: #0F6E56;
  --success-hover: #0C5A48;
  --success-bg: #E1F5EE;
  --success-text: #085041;
  --success-border: #B7E0D0;
  --danger: #D63B3A;
  --danger-bg: #FCEBEB;
  --danger-border: #F3C9C9;
  --warn: #C2620A;
  --warn-bg: #FEF3C7;
  --warn-text: #7A3C06;
  --warn-border: #FDE68A;
  --shadow: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.1), 0 2px 8px rgba(0,0,0,0.06);
  --radius: 16px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --nav-h: 60px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

[data-theme="dark"] {
  --bg: #0A0A14;
  --bg-card: #161623;
  --bg-card-hover: #1E1E32;
  --bg-input: #1E1E32;
  --bg-input-hover: #252540;
  --text: #E8EAED;
  --text-2: #8E94A3;
  --text-3: #5C6270;
  --border: #2A2A3E;
  --border-strong: #3A3A52;
  --border-subtle: #222236;
  --primary: #4A9AE8;
  --primary-hover: #5DA8F0;
  --primary-bg: rgba(74,154,232,0.1);
  --primary-bg-hover: rgba(74,154,232,0.18);
  --primary-text: #85B7EB;
  --primary-border: rgba(74,154,232,0.25);
  --success: #2DB585;
  --success-hover: #3FC996;
  --success-bg: rgba(45,181,133,0.1);
  --success-text: #5DCAA5;
  --success-border: rgba(45,181,133,0.25);
  --danger: #EF5350;
  --danger-bg: rgba(239,83,80,0.1);
  --danger-border: rgba(239,83,80,0.25);
  --warn: #F59E0B;
  --warn-bg: rgba(245,158,11,0.1);
  --warn-text: #FBBF24;
  --warn-border: rgba(245,158,11,0.25);
  --shadow: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.35);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.45);
}

/* ===== 全局重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  overflow-x: hidden;
  transition: background 0.25s, color 0.25s;
}
button, input, select { font-family: inherit; font-size: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
input, select { -webkit-appearance: none; appearance: none; }
.hidden { display: none !important; }

/* ===== 页面布局 ===== */
#app { max-width: 480px; margin: 0 auto; min-height: 100vh; position: relative; background: var(--bg); }
.page {
  display: none;
  padding: 12px 16px calc(var(--nav-h) + var(--safe-bottom) + 28px);
  min-height: 100vh;
  animation: fadeIn 0.2s ease;
}
.page.active { display: block; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ===== 页面头部 ===== */
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0 20px; gap: 12px;
}
.page-title { font-size: 26px; font-weight: 700; letter-spacing: -0.02em; }
.page-subtitle { font-size: 13px; color: var(--text-2); margin-top: 4px; }
.header-date {
  font-size: 15px; font-weight: 600; color: var(--primary);
  font-variant-numeric: tabular-nums; white-space: nowrap;
}

/* ===== 进度长条卡片 ===== */
.progress-bar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 20px 18px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}
.progress-bar-top {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 14px;
}
.progress-bar-info { display: flex; flex-direction: column; gap: 2px; }
.progress-count { font-size: 24px; font-weight: 700; font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.progress-label { font-size: 13px; color: var(--text-2); }
.progress-percent {
  font-size: 26px; font-weight: 700; color: var(--primary);
  font-variant-numeric: tabular-nums; letter-spacing: -0.02em;
}
.progress-bar-track {
  height: 10px; background: var(--bg-input); border: 1px solid var(--border-subtle);
  border-radius: 5px; overflow: hidden;
}
.progress-bar-track.sm { height: 8px; }
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--success));
  border-radius: 4px; width: 0%;
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== 区段标签 ===== */
.section-label {
  font-size: 13px; font-weight: 600; color: var(--text-2);
  padding: 8px 4px 12px;
  text-transform: uppercase; letter-spacing: 0.04em;
}
.section-label-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 4px 12px;
}
.section-label-row .section-label { padding: 0; }
.btn-link {
  font-size: 13px; font-weight: 600; color: var(--primary);
  padding: 6px 12px; border-radius: var(--radius-xs);
  border: 1px solid var(--primary-border); background: var(--primary-bg);
  transition: all 0.15s ease;
}
.btn-link:active { background: var(--primary-bg-hover); transform: scale(0.96); }

/* ===== 任务列表 ===== */
.task-list { display: flex; flex-direction: column; gap: 8px; }
.task-item {
  display: flex; align-items: center; gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.task-item:active { transform: scale(0.985); border-color: var(--border-strong); }
.task-item.done { background: var(--bg-input); border-color: var(--border-subtle); }
.task-item.done .task-name {
  position: relative;
  color: var(--text-2);
}
.task-item.done .task-name::after {
  content: '';
  position: absolute;
  left: 0; right: 0; top: 50%;
  height: 1px;
  background:  #999999;
  border-radius: 1px;
  transform: translateY(-50%);
}
.task-item.done .task-time-badge { opacity: 0.6; }

.task-time-badge {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  font-size: 12px; font-weight: 700; color: var(--primary-text);
  background: var(--primary-bg); border: 1px solid var(--primary-border);
  border-radius: var(--radius-xs); padding: 6px 8px;
  min-width: 54px; flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}
.task-time-sep { font-size: 8px; opacity: 0.4; line-height: 1; }

.task-info { flex: 1; display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.task-name { font-size: 15px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.task-name.disabled { color: var(--text-3); }
.task-meta { display: flex; align-items: center; gap: 6px; }
.task-status { font-size: 12px; color: var(--text-3); }
.goal-tag {
  font-size: 10px; font-weight: 600; color: var(--warn-text);
  background: var(--warn-bg); border: 1px solid var(--warn-border);
  padding: 2px 8px; border-radius: 4px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 120px;
}

/* 打卡按钮 */
.check-btn {
  width: 32px; height: 32px; border-radius: 50%;
  border: 2px solid var(--border-strong); flex-shrink: 0;
  background: var(--bg-card);
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s ease;
}
.check-btn:active { transform: scale(0.9); }
.check-btn.done { background: var(--success); border-color: var(--success); }
.check-btn.done svg { opacity: 1; }
.check-btn svg { width: 16px; height: 16px; opacity: 0; transition: opacity 0.2s; stroke: #fff; }

/* 任务页操作 */
.task-actions { display: flex; gap: 8px; align-items: center; }
.task-delete-btn {
  width: 32px; height: 32px; border-radius: var(--radius-xs);
  color: var(--danger); border: 1px solid transparent;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
  transition: all 0.15s ease;
}
.task-delete-btn:active { background: var(--danger-bg); border-color: var(--danger-border); }

/* ===== 浮动按钮 ===== */
.fab {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--primary); color: #fff;
  border: 1px solid var(--primary-hover);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 14px rgba(24,95,165,0.35);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.fab:active { transform: scale(0.9); box-shadow: 0 2px 8px rgba(24,95,165,0.3); }

/* ===== 空状态 ===== */
.empty-state {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  padding: 48px 20px; color: var(--text-3);
}
.empty-state.sm { padding: 28px 20px; }
.empty-icon {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--bg-input); border: 1px dashed var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; opacity: 0.5; margin-bottom: 4px;
}
.empty-state p { font-size: 15px; color: var(--text-2); font-weight: 500; }
.empty-state span { font-size: 13px; color: var(--text-3); }

/* ===== 底部导航 ===== */
.bottom-nav {
  position: fixed; bottom: 0; left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 480px;
  display: flex; height: calc(var(--nav-h) + var(--safe-bottom));
  background: var(--bg-card);
  border-top: 1px solid var(--border-strong);
  padding-bottom: var(--safe-bottom);
  z-index: 100;
  box-shadow: 0 -2px 12px rgba(0,0,0,0.04);
}
.nav-item {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 3px; color: var(--text-3); transition: color 0.15s ease;
  padding-top: 8px; position: relative;
}
.nav-item.active { color: var(--primary); }
.nav-item.active::before {
  content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 28px; height: 3px; border-radius: 0 0 3px 3px; background: var(--primary);
}
.nav-item span { font-size: 11px; font-weight: 500; }

/* ===== 分段标签 ===== */
.seg-tabs {
  display: flex; background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 4px;
  margin-bottom: 16px; gap: 4px;
}
.seg-tabs.mini { margin-bottom: 0; border: none; padding: 3px; }
.seg-tab {
  flex: 1; padding: 8px 0; border-radius: var(--radius-xs); font-size: 14px; font-weight: 600;
  color: var(--text-2); transition: all 0.2s ease;
}
.seg-tab.active {
  background: var(--bg-card); color: var(--primary);
  box-shadow: var(--shadow); border: 1px solid var(--border);
}

/* ===== 统计面板 ===== */
.stats-panel { display: none; animation: fadeIn 0.2s ease; }
.stats-panel.active { display: block; }

/* 月导航 */
.month-nav {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 4px 8px;
}
.month-nav-btn {
  width: 36px; height: 36px; border-radius: var(--radius-xs); color: var(--text-2);
  border: 1px solid transparent;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s ease;
}
.month-nav-btn:active { background: var(--bg-input); border-color: var(--border); }
.month-nav-btn:disabled { opacity: 0.25; pointer-events: none; }
.month-nav-label { font-size: 16px; font-weight: 700; font-variant-numeric: tabular-nums; }
.month-nav-select {
  font-size: 16px; font-weight: 700; font-variant-numeric: tabular-nums;
  font-family: inherit;
  border: 1px solid var(--border); border-radius: var(--radius-xs);
  background: var(--bg-card); color: var(--text-1);
  padding: 6px 30px 6px 12px; cursor: pointer; outline: none;
  appearance: none; -webkit-appearance: none; -moz-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23889' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><path d='M6 9l6 6 6-6'/></svg>");
  background-repeat: no-repeat;
  background-position: right 8px center;
  transition: border-color 0.15s ease;
}
.month-nav-select:active, .month-nav-select:focus { border-color: var(--primary); }

/* 日历 */
.calendar { display: grid; grid-template-columns: repeat(7, 1fr); gap: 5px; margin-bottom: 16px; }
.cal-weekday {
  text-align: center; font-size: 11px; color: var(--text-3); font-weight: 600; padding: 4px 0;
}
.cal-day {
  aspect-ratio: 1; border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 600; color: var(--text-2);
  background: var(--bg-card); transition: all 0.15s ease;
}
/* 日历完成率分级颜色 */
.cal-day.lvl-100 { background: #1B5E20; border-color: #1B5E20; color: #fff; }
.cal-day.lvl-80 { background: #2E7D32; border-color: #2E7D32; color: #fff; }
.cal-day.lvl-60 { background: #A5D6A7; border-color: #81C784; color: #1B5E20; }
.cal-day.lvl-30 { background: #EF5350; border-color: #EF5350; color: #fff; }
.cal-day.lvl-0 { background: #B71C1C; border-color: #B71C1C; color: #fff; }
/* 深色主题下调亮 */
[data-theme="dark"] .cal-day.lvl-100 { background: #2E7D32; border-color: #2E7D32; }
[data-theme="dark"] .cal-day.lvl-80 { background: #43A047; border-color: #43A047; }
[data-theme="dark"] .cal-day.lvl-60 { background: #81C784; border-color: #81C784; color: #1B5E20; }
[data-theme="dark"] .cal-day.lvl-30 { background: #E53935; border-color: #E53935; }
[data-theme="dark"] .cal-day.lvl-0 { background: #C62828; border-color: #C62828; }
.cal-day.today { border-color: var(--primary); border-width: 2px; }
.cal-day.selected { border-color: var(--primary); border-width: 2px; background: var(--primary-bg); color: var(--primary); }
.cal-day.clickable { cursor: pointer; }
.cal-day.clickable:active { transform: scale(0.9); }
.cal-day.empty { background: transparent; border-color: transparent; }
.cal-day.no-task { background: transparent; color: var(--text-3); }
.cal-day.future { background: transparent; border-color: var(--border-subtle); color: var(--text-3); opacity: 0.4; cursor: default; }

/* 日详情面板 */
.day-detail {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow);
  animation: fadeIn 0.2s ease;
}
.day-detail-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 14px; padding-bottom: 14px; border-bottom: 1px solid var(--border);
}
.day-detail-date { font-size: 15px; font-weight: 700; }
.day-detail-summary { font-size: 13px; color: var(--text-2); font-variant-numeric: tabular-nums; }
.day-detail .task-item { box-shadow: none; background: var(--bg-input); border-color: var(--border-subtle); padding: 10px 14px; }
.day-detail .task-item .task-time-badge { background: var(--bg-card); }

/* 热力图 */
.heatmap { display: grid; grid-template-columns: repeat(53, 1fr); gap: 2px; margin-bottom: 8px; }
.heat-cell {
  aspect-ratio: 1; border-radius: 2px; background: var(--success);
  opacity: 0.08; transition: opacity 0.2s;
}
.heatmap-legend { display: flex; align-items: center; gap: 8px; justify-content: flex-end; font-size: 11px; color: var(--text-3); }
.legend-cells { display: flex; gap: 2px; }
.legend-cell { width: 12px; height: 12px; border-radius: 2px; background: var(--success); display: inline-block; }

/* ===== 长期目标卡片 ===== */
.goal-list { display: flex; flex-direction: column; gap: 10px; }
.goal-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.goal-card:active { transform: scale(0.985); border-color: var(--border-strong); }
.goal-card-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 14px; gap: 8px;
}
.goal-name { font-size: 15px; font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.goal-deadline-badge {
  font-size: 11px; font-weight: 700; padding: 4px 10px; border-radius: 6px;
  white-space: nowrap; flex-shrink: 0; border: 1px solid transparent;
}
.goal-deadline-badge.normal { color: var(--primary-text); background: var(--primary-bg); border-color: var(--primary-border); }
.goal-deadline-badge.warn { color: var(--warn-text); background: var(--warn-bg); border-color: var(--warn-border); }
.goal-deadline-badge.expired { color: var(--danger); background: var(--danger-bg); border-color: var(--danger-border); }

.goal-progress-row {
  display: flex; align-items: center; gap: 12px; margin-bottom: 10px;
}
.goal-progress-row .progress-bar-track { flex: 1; }
.goal-percent { font-size: 15px; font-weight: 700; color: var(--primary); min-width: 44px; text-align: right; font-variant-numeric: tabular-nums; }

.goal-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 11px; color: var(--text-3); gap: 8px;
}
.goal-meta .goal-dates { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.goal-meta .goal-completed { white-space: nowrap; font-variant-numeric: tabular-nums; }

.goal-actions { display: flex; gap: 6px; }
.goal-action-btn {
  width: 30px; height: 30px; border-radius: var(--radius-xs); color: var(--text-3);
  border: 1px solid transparent;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s ease;
}
.goal-action-btn:active { background: var(--bg-input); border-color: var(--border); }
.goal-action-btn.delete { color: var(--danger); }
.goal-action-btn.delete:active { background: var(--danger-bg); border-color: var(--danger-border); }

/* 目标统计卡片 */
.goal-stat-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); margin-bottom: 12px;
}
.goal-stat-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 14px; gap: 8px;
}
.goal-stat-meta {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 11px; color: var(--text-3); margin-top: 10px; gap: 8px;
}
.goal-stat-meta span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.goal-tasks {
  display: flex; flex-wrap: wrap; gap: 4px; margin-top: 12px;
  padding-top: 12px; border-top: 1px solid var(--border);
}
.goal-tasks-label { font-size: 11px; color: var(--text-3); margin-right: 4px; }
.goal-task-tag {
  font-size: 11px; padding: 3px 8px; border-radius: 4px;
  background: var(--primary-bg); color: var(--primary-text);
  border: 1px solid var(--primary-border);
}
.goal-task-tag.none { background: var(--bg-input); color: var(--text-3); border-color: var(--border); }

/* ===== 设置 ===== */
.settings-group {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); margin-bottom: 16px;
}
.setting-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px; border-bottom: 1px solid var(--border-subtle);
}
.setting-row:last-child { border-bottom: none; }
.setting-info { display: flex; flex-direction: column; gap: 2px; }
.setting-name { font-size: 15px; font-weight: 600; }
.setting-desc { font-size: 12px; color: var(--text-2); }
.setting-value { font-size: 14px; color: var(--text-2); }

/* 开关 */
.switch { position: relative; display: inline-block; width: 46px; height: 26px; flex-shrink: 0; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch-slider {
  position: absolute; inset: 0; background: var(--bg-input);
  border: 1px solid var(--border-strong); border-radius: 13px;
  transition: all 0.2s ease; cursor: pointer;
}
.switch-slider::before {
  content: ''; position: absolute; width: 20px; height: 20px; left: 2px; top: 2px;
  background: #fff; border: 1px solid var(--border-strong); border-radius: 50%;
  transition: transform 0.2s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}
.switch input:checked + .switch-slider { background: var(--primary); border-color: var(--primary); }
.switch input:checked + .switch-slider::before { transform: translateX(20px); border-color: var(--primary); }

/* ===== 弹窗 ===== */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.45);
  backdrop-filter: blur(4px);
  display: flex; align-items: flex-end; justify-content: center;
  z-index: 200; opacity: 0; pointer-events: none;
  transition: opacity 0.2s ease;
}
.modal-overlay.show { opacity: 1; pointer-events: auto; }
.modal-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 22px 22px 0 0;
  width: 100%; max-width: 480px; padding: 24px 20px calc(20px + var(--safe-bottom));
  transform: translateY(100%); transition: transform 0.25s cubic-bezier(0.32, 0.72, 0, 1);
  max-height: 85vh; overflow-y: auto;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.12);
}
.modal-overlay.show .modal-card { transform: translateY(0); }
.modal-title { font-size: 18px; font-weight: 700; margin-bottom: 20px; }
.form-group { margin-bottom: 16px; }
.form-group.half { flex: 1; }
.form-label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 8px; font-weight: 600; }
.form-input {
  width: 100%; padding: 12px 14px; background: var(--bg-card);
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  font-size: 16px; color: var(--text); transition: all 0.15s ease;
}
.form-input:hover { border-color: var(--primary-border); }
.form-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-bg); }
select.form-input {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235A6276' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
  padding-right: 36px;
}
.form-row { display: flex; gap: 12px; }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 24px; }
.btn-text { padding: 10px 20px; border-radius: var(--radius-sm); font-size: 15px; font-weight: 600; color: var(--text-2); border: 1px solid var(--border); }
.btn-text.primary { color: var(--primary); border-color: var(--primary-border); background: var(--primary-bg); }
.btn-text:active { transform: scale(0.96); }
.btn-primary {
  display: block; width: 100%; padding: 14px; border-radius: var(--radius-sm);
  background: var(--primary); color: #fff; font-size: 16px; font-weight: 700;
  border: 1px solid var(--primary-hover);
  margin-top: 12px; transition: transform 0.15s;
  box-shadow: 0 4px 14px rgba(24,95,165,0.3);
}
.btn-primary:active { transform: scale(0.98); }

/* 安装提示 */
.install-hint {
  background: var(--primary-bg); border: 1px solid var(--primary-border);
  border-radius: var(--radius); padding: 18px; text-align: center; margin-top: 16px;
}
.install-hint p { font-size: 14px; color: var(--primary-text); margin-bottom: 4px; font-weight: 600; }

/* ===== Toast 提示 ===== */
.toast {
  position: fixed; bottom: calc(var(--nav-h) + var(--safe-bottom) + 20px);
  left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--text); color: var(--bg);
  padding: 10px 20px; border-radius: 22px; font-size: 14px; font-weight: 500;
  opacity: 0; pointer-events: none; transition: all 0.25s ease;
  z-index: 300; white-space: nowrap;
  box-shadow: var(--shadow-lg);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ===== 登录/注册页 ===== */
.login-page {
  display: none;
  position: fixed; inset: 0;
  background: var(--bg);
  z-index: 9999;
  align-items: center; justify-content: center;
  padding: 24px;
}
.login-page.active { display: flex; }
#app.hidden { display: none; }

.login-card {
  width: 100%; max-width: 360px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px 28px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}
.login-icon {
  width: 64px; height: 64px; margin: 0 auto 16px;
  background: var(--primary-bg); color: var(--primary);
  border-radius: 18px; border: 1px solid var(--primary-border);
  display: flex; align-items: center; justify-content: center;
}
.login-title { font-size: 24px; font-weight: 700; color: var(--text); }
.login-subtitle { font-size: 14px; color: var(--text-2); margin-top: 4px; margin-bottom: 24px; }

.login-tabs {
  display: flex; gap: 0; margin-bottom: 20px;
  background: var(--bg); border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle); padding: 3px;
}
.login-tab {
  flex: 1; padding: 9px; border: none; background: transparent;
  font-size: 14px; font-weight: 500; color: var(--text-2);
  border-radius: calc(var(--radius-sm) - 2px);
  cursor: pointer; transition: all 0.2s ease;
}
.login-tab.active { background: var(--card); color: var(--primary); box-shadow: var(--shadow-sm); }

.login-form { display: none; flex-direction: column; gap: 12px; }
.login-form.active { display: flex; }
.login-input {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-size: 15px; background: var(--card); color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  box-sizing: border-box;
}
.login-input:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-bg);
}
.login-btn {
  width: 100%; padding: 13px; margin-top: 4px;
  background: var(--primary); color: #fff;
  border: none; border-radius: var(--radius-sm);
  font-size: 16px; font-weight: 600; cursor: pointer;
  transition: opacity 0.2s ease, transform 0.1s ease;
}
.login-btn:active { transform: scale(0.97); }
.login-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.login-error { color: var(--danger); font-size: 13px; min-height: 18px; margin-top: 2px; }

/* 退出登录按钮 */
.logout-btn {
  width: 100%; padding: 13px; margin-top: 16px;
  background: transparent; color: var(--danger);
  border: 1px solid var(--danger); border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 500; cursor: pointer;
  transition: all 0.2s ease;
}
.logout-btn:active { background: var(--danger); color: #fff; }