* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --bg: #F4F3EE;
    --surface: #FFFFFF;
    --text: #1F1F1F;
    --muted: #6B6256;
    --muted-2: #B1ADA1;
    --border: #E3E0DB;
    --border-strong: #D6D2CA;
    --primary: #C15F3C;
    --primary-600: #A74E30;
    --danger: #C44536;
    --completed-bg: #EFEDE6;
    --completed-bg-rgb: 239, 237, 230;
    --completed-border: #DBD7CE;
    --completed-text: #5D564C;
    --text-55: rgba(31, 31, 31, 0.45);
    --surface-90: rgba(255, 255, 255, 0.90);

    /* Radius */
    --r-sm: 6px;
    --r-md: 10px;
    --r-lg: 12px;

    /* Shadows */
    --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.03);
    --shadow-md-hover: 0 6px 24px rgba(0, 0, 0, 0.05);

    /* Spacing */
    --gap-1: 8px;
    --gap-2: 12px;
    --gap-3: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'PingFang SC', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    min-height: 100vh;
}

.container {
    max-width: 768px;
    margin: 0 auto;
    padding: 24px;
    width: 100%;
}

header {
    background: var(--surface);
    padding: 16px 24px;
    border-radius: var(--r-lg);
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
    border: none;
    width: 100%;
    transition: all 0.3s ease;
}

header:hover {
    box-shadow: var(--shadow-md-hover);
}

/* PWA 安装引导（底部提示条） */
.pwa-install-banner {
    position: fixed;
    left: 16px;
    right: 16px;
    bottom: calc(16px + env(safe-area-inset-bottom));
    z-index: 2500;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 12px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.92);
    box-shadow: var(--shadow-md-hover);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.page-tasks .pwa-install-banner {
    /* 避免和右下角 FAB 打架 */
    bottom: calc(16px + env(safe-area-inset-bottom) + 72px);
}

.pwa-install-text {
    flex: 1;
    min-width: 0;
}

.pwa-install-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.2;
}

.pwa-install-desc {
    margin-top: 4px;
    font-size: 13px;
    color: var(--muted);
    line-height: 1.3;
}

.pwa-install-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.pwa-install-btn {
    border: none;
    border-radius: 999px;
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 600;
    background: var(--text);
    color: #fff;
    cursor: pointer;
}

.pwa-install-secondary {
    border: 1px solid var(--border-strong);
    border-radius: 999px;
    padding: 8px 10px;
    font-size: 13px;
    background: transparent;
    color: var(--text);
    cursor: pointer;
}

.pwa-install-close {
    width: 32px;
    height: 32px;
    border-radius: 16px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--muted);
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
}

.pwa-install-btn:hover {
    filter: brightness(0.95);
}
.pwa-install-secondary:hover,
.pwa-install-close:hover {
    background: rgba(0, 0, 0, 0.04);
    color: var(--text);
}

.app-title {
    font-size: 20px;
    font-weight: 400;
    color: var(--primary);
    letter-spacing: 2px;
    white-space: nowrap;
}

/* 标题采用 serif 字体以提升“纸感” */
h1, h2, h3, .app-title {
    font-family: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;
}

/* 无鼠标操作的可视焦点 */
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.quick-btn:focus-visible,
.user-dropdown-trigger:focus-visible,
.task-menu-btn:focus-visible,
.fab-btn:focus-visible,
.fab-item:focus-visible,
.date-title:focus-visible,
.btn-nav:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0;
    flex-wrap: nowrap; /* 防止换行 */
    gap: 16px;
    position: relative; /* 为绝对定位的日期按钮提供定位上下文 */
}

/* PC端：日期按钮水平居中 */
.page-tasks .date-bar {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    white-space: nowrap;
}

.user-info span {
    color: var(--muted);
    font-size: 14px;
    font-weight: 400;
}

/* 仅在任务页隐藏旧版控件（避免影响日历页的月份切换 UI） */
.page-tasks .header-controls,
.page-tasks .date-selector,
.page-tasks .task-controls,
.page-tasks .current-date-display {
    display: none;
}

.btn-back {
    color: var(--muted);
    text-decoration: none;
    font-size: 14px;
    padding: 8px 12px;
    border-radius: 5px;
    transition: all 0.2s;
    font-weight: 400;
}

.btn-back:hover {
    background: rgba(0,0,0,0.04);
    color: var(--text);
}

.btn-nav {
    background: #fff;
    border: 1px solid #e0e0e0;
    padding: 8px 15px;
    font-size: 18px;
    cursor: pointer;
    border-radius: 5px;
    transition: all 0.2s;
    color: #666;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn-nav:hover {
    background: rgba(0,0,0,0.04);
    color: var(--text);
    border-color: var(--border-strong);
}

#currentMonthYear {
    font-size: 18px;
    font-weight: 600;
    /* 移除 min-width 和 flex:1，让间距更紧凑 */
    min-width: auto;
    padding: 0 16px; /* 给日期一点呼吸空间 */
    text-align: center;
    flex: 0 0 auto; /* 不伸缩 */
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.3s;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn-primary:hover {
    background-color: var(--primary-600);
}

.btn-primary:active {
    background-color: var(--primary-600);
}

.btn-secondary {
    background: #ffffff;
    color: #666;
    border: 1px solid #e0e0e0;
    padding: 6px 12px; /* 调小一点 */
    border-radius: 5px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 400;
    transition: all 0.2s;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.btn-secondary:hover {
    background: #f5f5f5;
    border-color: #d0d0d0;
    color: #333;
}

.btn-danger {
    background-color: #f44336;
    color: white;
    border: none;
    padding: 8px 14px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 13px;
    transition: background-color 0.2s;
}

.btn-danger:hover {
    background-color: #d32f2f;
}

.btn-small {
    padding: 4px 8px;
    font-size: 12px;
}

/* 日历样式 */
.calendar {
    background-color: #fff;
    border-radius: 8px;
    padding: 24px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
    width: 100%;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 10px;
    margin-top: 20px;
    width: 100%;
}

.calendar-day-header {
    text-align: center;
    font-weight: 500;
    padding: 12px;
    color: #666;
    font-size: 14px;
}

.calendar-day {
    aspect-ratio: 1;
    border: 1px solid #f0f0f0;
    border-radius: 5px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    background-color: #fff;
    padding: 8px;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    user-select: none;
}

.calendar-day:hover {
    background-color: #f5f5f5;
    border-color: var(--primary);
}

.calendar-day.other-month {
    color: #ccc;
    background-color: #fafafa;
}

.calendar-day.today {
    background-color: var(--primary);
    color: white;
    font-weight: 600;
}

.calendar-day.has-tasks {
    border-color: var(--primary);
    border-width: 2px;
}

.calendar-day-number {
    font-size: 16px;
    font-weight: 500;
}

.calendar-day-tasks {
    font-size: 10px;
    margin-top: 2px;
    color: var(--primary);
}

.calendar-day.today .calendar-day-tasks {
    color: white;
}

/* 任务表格样式 - flomo 风格 */
.task-table-container {
    background: #ffffff;
    border-radius: 8px;
    padding: 0;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
    border: none;
    overflow-x: auto; /* 确保操作列不会被挤出去 */
    margin-bottom: 20px;
    width: 100%;
    -webkit-overflow-scrolling: touch;
    position: relative;
}

.task-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    min-width: 900px;
    table-layout: auto;
}

.task-table th {
    background: #fafafa;
    padding: 14px 20px;
    text-align: center; /* 默认居中 */
    border-bottom: 1px solid #f0f0f0;
    font-weight: 500; /* 减弱字重 */
    color: #999; /* 弱化颜色 */
    font-size: 13px;
    text-transform: none;
    letter-spacing: 0;
    position: sticky;
    top: 0;
    z-index: 10;
    vertical-align: middle;
}

/* 第一列（分类）保持左对齐 */
.task-table th:first-child {
    text-align: left;
    padding-left: 24px;
    min-width: 100px;
}

/* 最后一列（操作）加宽一点，防止溢出 */
.task-table th:last-child {
    padding-right: 32px; /* 增加右边距 */
    min-width: 100px; /* 增加最小宽度 */
}

.task-table td {
    padding: 16px 16px; /* 略微减小左右 padding，给最后一列腾空间 */
    border-bottom: 1px solid #f5f5f5;
    position: relative;
    vertical-align: middle;
    text-align: center; /* 默认居中 */
}

/* 第一列（分类）保持左对齐 */
.task-table td:first-child {
    text-align: left;
    padding-left: 24px;
    padding-right: 16px;
}

/* 最后一列（操作） */
.task-table td:last-child {
    padding-right: 32px; /* 增加右边距 */
}

.task-table tr:hover {
    background: #fafafa;
}

.task-table tr:last-child td {
    border-bottom: none;
}

.task-table tr {
    transition: background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    will-change: background-color;
}

.task-table tr.task-completed-row {
    background: transparent;
}

.task-table tr.task-completed-row td {
    opacity: 0.6;
}

.task-table tr.task-completed-row.celebrating {
    animation: completeTask 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 将对号放在第一个单元格内部左侧 */
.task-table tr.task-completed-row td.task-category::before {
    content: '✓';
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary);
    font-size: 18px;
    font-weight: bold;
    z-index: 1;
    pointer-events: none;
    width: 20px;
    text-align: center;
}

.task-table tr.task-completed-row td.task-category {
    position: relative;
    padding-left: 28px;
}

.task-table tr.task-completed-row td.task-category .task-category-text {
    margin-left: 0;
}

.task-table tr.task-completed-row td {
    text-decoration: line-through;
    color: var(--completed-text);
    position: relative;
}

.task-table tr.task-completed-row td.task-name {
    position: relative;
    color: var(--text);
    text-decoration-color: var(--primary);
    text-decoration-thickness: 2px;
}

.task-table tr.task-completed-row.celebrating td.task-name::after {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #C15F3C, #A74E30);
    animation: strikeThrough 0.5s cubic-bezier(0.4, 0, 0.2, 1) 0.3s forwards;
}

@keyframes completeTask {
    0% {
        background-color: #fff;
    }
    50% {
        background-color: rgba(39, 174, 96, 0.1);
    }
    100% {
        background: linear-gradient(90deg, rgba(39, 174, 96, 0.05) 0%, rgba(39, 174, 96, 0.02) 100%);
    }
}

@keyframes slideInCheck {
    0% {
        left: -30px;
        opacity: 0;
        transform: translateY(-50%) scale(0);
    }
    50% {
        left: 10px;
        opacity: 1;
        transform: translateY(-50%) scale(1.2);
    }
    100% {
        left: 5px;
        opacity: 0.8;
        transform: translateY(-50%) scale(1);
    }
}

@keyframes strikeThrough {
    0% {
        width: 0;
    }
    100% {
        width: 100%;
    }
}

/* 完成时的庆祝动画 */
.task-completed-celebration {
    position: fixed;
    pointer-events: none;
    z-index: 10000;
    transform: translateZ(0);
}

.celebration-particle {
    position: absolute;
    width: 8px;
    height: 8px;
    background: #27ae60;
    border-radius: 50%;
    animation: celebrate 0.8s ease-out forwards;
    box-shadow: 0 0 6px currentColor;
    will-change: transform, opacity;
    transform: translateZ(0);
}

.celebration-particle:nth-child(1),
.celebration-particle:nth-child(5) {
    background: #27ae60;
    box-shadow: 0 0 8px #27ae60;
}

.celebration-particle:nth-child(2),
.celebration-particle:nth-child(6) {
    background: #2ecc71;
    box-shadow: 0 0 8px #2ecc71;
}

.celebration-particle:nth-child(3),
.celebration-particle:nth-child(7) {
    background: #3498db;
    box-shadow: 0 0 8px #3498db;
}

.celebration-particle:nth-child(4),
.celebration-particle:nth-child(8) {
    background: #f39c12;
    box-shadow: 0 0 8px #f39c12;
}

@keyframes celebrate {
    0% {
        opacity: 1;
        transform: translate(0, 0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translate(var(--tx), var(--ty)) scale(0);
    }
}

.task-table input[type="text"],
.task-table input[type="number"],
.task-table input[type="time"],
.task-table select {
    width: 100%;
    padding: 6px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.task-table .task-completed {
    position: relative;
    text-align: center;
}

.task-table input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    appearance: none;
    -webkit-appearance: none;
    border: 2px solid #ccc;
    border-radius: 4px;
    position: relative;
    transition: all 0.2s;
    background-color: #fff;
    vertical-align: middle;
}

.task-table input[type="checkbox"]:hover {
    border-color: var(--primary);
}

.task-table input[type="checkbox"]:checked {
    background-color: var(--primary);
    border-color: var(--primary);
}

.task-table input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    left: 6px;
    top: 2px;
    width: 6px;
    height: 12px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    animation: checkmark 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
/* 完成行的复选框：白底 + 陶土色对勾 */
.task-table tr.task-completed-row input[type="checkbox"]:checked {
    background-color: var(--surface);
    border-color: var(--border-strong);
}
.task-table tr.task-completed-row input[type="checkbox"]:checked::after {
    border-color: var(--primary);
}

@keyframes checkmark {
    0% {
        height: 0;
        width: 0;
        opacity: 0;
        transform: rotate(45deg) scale(0);
    }
    50% {
        height: 6px;
        width: 3px;
        opacity: 1;
        transform: rotate(45deg) scale(1.2);
    }
    100% {
        height: 12px;
        width: 6px;
        opacity: 1;
        transform: rotate(45deg) scale(1);
    }
}

/* 任务信息突出显示 */
.task-table .task-category-text {
    font-weight: 500;
    color: #666;
    font-size: 14px;
    white-space: nowrap;
}

.task-table .task-name {
    color: #222; /* 更深的颜色 */
    font-weight: 600; /* 加粗 */
    font-size: 16px; /* 加大 */
    line-height: 1.6;
    margin: 0;
}

.task-table .task-duration {
    color: #555; /* 加深一点 */
    font-weight: 500; /* 稍微加粗 */
    font-size: 14px;
    font-variant-numeric: tabular-nums; /* 数字等宽对齐 */
}

.task-table .task-time-pill {
    color: #333; /* 加深颜色 */
    font-size: 13px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: #ebedf0; /* 稍微深一点的背景 */
    padding: 4px 10px; /* 稍微加宽 */
    border-radius: 4px;
    display: inline-block;
    border: 1px solid #e0e0e0; /* 增加微弱边框 */
    vertical-align: middle;
    white-space: nowrap;
    font-weight: 500; /* 加重字重 */
}

.task-table .task-actions {
    position: relative;
    z-index: 1;
    text-align: center;
}

.task-actions-menu {
    position: relative;
    display: inline-block;
}

.task-menu-btn {
    background: transparent;
    border: none;
    color: #666;
    font-size: 18px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: all 0.2s;
    line-height: 1;
    font-weight: 400;
    vertical-align: middle;
    display: inline-block;
}

.task-menu-btn:hover {
    background: #f5f5f5;
    color: #333;
}

.task-menu-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 4px;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    min-width: 120px;
    z-index: 1000;
    overflow: hidden;
}

.task-menu-dropdown.show {
    display: block;
}

.task-menu-item {
    display: block;
    width: 100%;
    padding: 10px 16px;
    text-align: left;
    background: none;
    border: none;
    color: #333;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.2s;
    font-weight: 400;
}

.task-menu-item:hover {
    background: #f5f5f5;
}

.task-menu-item-danger {
    color: #f44336;
}

.task-menu-item-danger:hover {
    background: #ffebee;
    color: #d32f2f;
}

/* 总结样式 */
.summary {
    background: #ffffff;
    border-radius: 8px;
    padding: 20px 24px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
    border: none;
    margin-top: 22px; /* 与任务列表拉开距离 */
}

.summary h3 {
    margin-bottom: 12px;
    color: #333;
    font-size: 18px;
    font-weight: 600;
}

.summary p {
    color: #666;
    font-size: 14px;
    line-height: 1.8;
    font-variant-numeric: tabular-nums; /* 数字等宽对齐 */
}

/* ===== 时间记录：趋势图图例（精炼交互，不影响饼图） ===== */
.page-summary .chart-legend,
.page-summary #chartLegend {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    flex-wrap: wrap;
}

.page-summary .legend-pill {
    --legend-color: var(--primary);
    appearance: none;
    border: 1px solid var(--border);
    background: #fff;
    color: #666;
    border-radius: 999px;
    padding: 6px 10px;
    font-size: 12px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    white-space: nowrap;
}

.page-summary .legend-pill .legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #bbb;
    flex: 0 0 auto;
}

.page-summary .legend-pill.is-active {
    border-color: var(--legend-color);
    color: var(--legend-color);
}

.page-summary .legend-pill.is-active .legend-dot {
    background: var(--legend-color);
}

@media (max-width: 480px) {
    .page-summary .chart-legend,
    .page-summary #chartLegend {
        flex-wrap: nowrap;
        overflow-x: auto;
        overflow-y: hidden;
        max-width: 100%;
        padding-bottom: 4px;
        -webkit-overflow-scrolling: touch;
    }
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(2px);
    overflow: auto;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: #fff;
    margin: auto;
    padding: 0;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    animation: modalSlideIn 0.3s;
    -webkit-overflow-scrolling: touch;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid #f0f0f0;
}

.modal-header h2 {
    margin: 0;
    color: #333;
    font-size: 20px;
    font-weight: 600;
}

.close {
    color: #999;
    font-size: 28px;
    font-weight: 300;
    cursor: pointer;
    line-height: 20px;
    transition: color 0.2s;
}

.close:hover {
    color: #333;
}

.modal-body {
    padding: 24px;
    position: relative;
    overflow: hidden;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
    font-size: 14px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    font-size: 14px;
    transition: all 0.2s;
    background: #fff;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(193, 95, 60, 0.15);
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 24px;
    flex-wrap: wrap;
}

.form-actions button {
    min-width: 100px;
}

#saveAndContinueBtn {
    background-color: var(--primary);
}

#saveAndContinueBtn:hover {
    background-color: var(--primary-600);
}

/* 模板列表样式 */
.template-list {
    max-height: 400px;
    overflow-y: auto;
}

.template-item {
    padding: 16px;
    border: 1px solid #f0f0f0;
    border-radius: 5px;
    margin-bottom: 12px;
    cursor: pointer;
    transition: all 0.2s;
    background: #fff;
}

.template-item:hover {
    background-color: #fafafa;
    border-color: var(--primary);
}

.template-item-name {
    font-weight: 500;
    color: #333;
    margin-bottom: 6px;
    font-size: 15px;
}

.template-item-info {
    font-size: 13px;
    color: #666;
}

.template-item-actions {
    display: flex;
    gap: 5px;
    margin-top: 10px;
}

/* 日期按钮样式优化 */
.date-bar-btn {
    background: rgba(0,0,0,0.04);
    border: none;
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: all 0.2s;
    line-height: 1.2;
}
.date-bar-btn:hover {
    background: rgba(0,0,0,0.08);
}
.date-bar-btn::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid #999;
    margin-top: 1px;
}

/* 用户下拉菜单 */
.user-dropdown-container {
    position: relative;
}
.user-dropdown-trigger {
    background: transparent;
    border: none;
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    padding: 6px 8px;
    border-radius: 6px;
    color: var(--text);
    font-size: 14px;
    font-weight: 500;
}
.user-dropdown-trigger:hover {
    background: rgba(0,0,0,0.04);
}
.user-dropdown-trigger .arrow-down {
    font-size: 10px;
    color: #999;
    transition: transform 0.2s;
}
.user-dropdown-container.active .arrow-down {
    transform: rotate(180deg);
}
.user-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    min-width: 140px;
    z-index: 1000;
    padding: 6px 0;
    animation: fadeIn 0.2s ease;
}
.user-dropdown-container.active .user-dropdown-menu {
    display: block;
}
.user-menu-item {
    padding: 10px 16px;
    font-size: 14px;
    color: #333;
    cursor: pointer;
    transition: background 0.2s;
    text-align: left;
}
.user-menu-item:hover {
    background: #f5f5f5;
}
.user-menu-item.danger {
    color: #f44336;
    border-top: 1px solid #f0f0f0;
    margin-top: 4px;
    padding-top: 12px;
}
.user-menu-item.danger:hover {
    background: #ffebee;
}


/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header {
        padding: 15px;
    }
    
    .app-title {
        font-size: 18px;
    }
    
    .header-top {
        flex-wrap: nowrap;
        gap: 10px;
        justify-content: space-between;
    }
    
    /* 日历页移动端：返回左侧，标题右侧 */
    .page-calendar .header-top {
        justify-content: space-between;
    }
    
    /* 任务页移动端：logo左侧，用户右侧，日期换行居中 */
    .page-tasks .header-top {
        flex-wrap: wrap;
        justify-content: space-between;
        gap: 8px;
        position: static; /* 移动端恢复静态定位 */
    }
    .page-tasks .app-brand {
        order: 1;
        flex-shrink: 0;
    }
    .page-tasks .user-dropdown-container {
        order: 2;
        flex-shrink: 0;
        margin-left: auto;
    }
    .page-tasks .date-bar {
        order: 3;
        flex-basis: 100%;
        width: 100%;
        display: flex;
        justify-content: center;
        margin-top: 4px;
        position: static; /* 移动端恢复静态定位 */
        left: auto;
        transform: none;
    }
    
    .date-bar {
        order: 3;
        width: 100%;
        margin-top: 5px;
    }

    .user-info {
        margin-left: auto;
    }
    
    .btn-nav {
        padding: 6px 10px;
        font-size: 16px;
        min-width: 32px;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .btn-back {
        font-size: 13px;
        padding: 6px 10px;
    }
    
    /* 日历移动端优化 */
    .calendar {
        padding: 15px 10px;
    }
    
    .calendar-grid {
        gap: 5px;
    }
    
    .calendar-day-header {
        padding: 8px 5px;
        font-size: 12px;
    }
    
    .calendar-day {
        padding: 5px 2px;
        min-height: 50px;
    }
    
    .calendar-day-number {
        font-size: 14px;
    }
    
    .calendar-day-tasks {
        font-size: 9px;
        margin-top: 2px;
    }
    
    /* 任务表格移动端优化 */
    .task-table-container {
        padding: 10px;
    }
    
    .task-table th:first-child {
        padding-left: 25px;
    }
    
    .task-table tr.task-completed-row td.task-category {
        padding-left: 25px;
    }
    
    .task-table tr.task-completed-row td.task-category::before {
        left: 3px;
        font-size: 16px;
    }
    
    .task-table th:first-child {
        padding-left: 25px;
        min-width: 80px;
    }
    
    .task-table .task-actions {
        min-width: 180px;
    }
    
    .task-table {
        font-size: 12px;
        min-width: 700px;
    }
    
    .task-table th,
    .task-table td {
        padding: 8px 4px;
    }
    
    .task-table th {
        font-size: 11px;
        white-space: nowrap;
    }
    
    .task-table .task-actions {
        min-width: 50px;
    }
    
    .task-menu-dropdown {
        min-width: 100px;
        right: auto;
        left: 0;
    }
    
    .task-menu-item {
        font-size: 13px;
        padding: 8px 14px;
    }
    
    .btn-small {
        padding: 4px 6px;
        font-size: 11px;
    }
    
    /* 模态框移动端优化 */
    .modal-content {
        width: 95%;
        max-width: 95%;
        margin: 10px auto;
    }
    
    .modal-header {
        padding: 15px;
    }
    
    .modal-header h2 {
        font-size: 18px;
    }
    
    .modal-body {
        padding: 15px;
    }
    
    .form-group {
        margin-bottom: 12px;
    }
    
    .form-group label {
        font-size: 13px;
    }
    
    .form-group input,
    .form-group select {
        padding: 8px;
        font-size: 14px;
    }
    
    .form-actions {
        flex-direction: column-reverse;
        gap: 8px;
    }
    
    .form-actions button {
        width: 100%;
        min-width: auto;
    }
    
    /* 总结移动端优化 */
    .summary {
        padding: 15px;
    }
    
    .summary h3 {
        font-size: 16px;
    }
    
    .summary p {
        font-size: 13px;
    }
    
    /* 模板列表移动端优化 */
    .template-item {
        padding: 12px;
    }
    
    .template-item-name {
        font-size: 14px;
    }
    
    .template-item-info {
        font-size: 11px;
    }
    
    .template-item-actions {
        flex-direction: column;
        gap: 5px;
    }
    
    .template-item-actions button {
        width: 100%;
    }
}

/* ===== 移动端：Bottom Sheet（仅对标记了 modal--sheet 的弹窗生效） ===== */
@media (max-width: 768px) {
    .modal.modal--sheet.show {
        align-items: flex-end;
        justify-content: center;
        padding: 0;
    }

    .modal.modal--sheet .modal-content {
        width: 100%;
        max-width: 100%;
        margin: 0;
        border-radius: 16px 16px 0 0;
        max-height: calc(92vh - env(safe-area-inset-top));
        overflow: hidden;
        animation: sheetUp 0.22s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .modal.modal--sheet .modal-body {
        max-height: calc(92vh - 60px - env(safe-area-inset-top));
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: calc(16px + env(safe-area-inset-bottom));
    }

    .modal.modal--sheet .form-actions {
        position: sticky;
        bottom: 0;
        background: #fff;
        padding: 12px 0 calc(12px + env(safe-area-inset-bottom));
        border-top: 1px solid #f1f1f1;
        z-index: 2;
    }

    .quick-row {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
        margin: -6px 0 12px;
    }

    .quick-btn {
        border: 1px solid var(--border);
        background: #fff;
        color: var(--text);
        border-radius: 999px;
        padding: 8px 12px;
        font-size: 13px;
        line-height: 1;
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
        touch-action: manipulation;
        min-height: 36px;
    }

    .quick-btn:active {
        transform: translateY(1px);
    }
}

@keyframes sheetUp {
    from { transform: translateY(14px); opacity: 0.96; }
    to { transform: translateY(0); opacity: 1; }
}

/* 小屏幕手机优化 */
@media (max-width: 480px) {
    .container {
        padding: 5px;
    }
    
    header {
        padding: 12px;
    }
    
    .app-title {
        font-size: 18px;
    }
    
    .header-controls {
        flex-direction: row;
        width: 100%;
        justify-content: center;
        gap: 4px;
    }
    
    .header-controls button.btn-nav {
        width: auto;
        padding: 6px 10px;
        min-width: 32px;
    }
    
    #currentMonthYear {
        text-align: center;
        margin: 0 4px;
        font-size: 16px;
    }
    
    .calendar {
        padding: 10px 5px;
    }
    
    .calendar-grid {
        gap: 3px;
    }
    
    .calendar-day-header {
        padding: 6px 2px;
        font-size: 11px;
    }
    
    .calendar-day {
        min-height: 45px;
        padding: 3px 1px;
    }
    
    .calendar-day-number {
        font-size: 12px;
    }
    
    .task-table-container {
        padding: 5px;
    }
    
    .task-table th:first-child {
        padding-left: 20px;
    }
    
    .task-table tr.task-completed-row td.task-category {
        padding-left: 20px;
    }
    
    .task-table tr.task-completed-row td.task-category::before {
        left: 2px;
        font-size: 14px;
    }
    
    .task-table th:first-child {
        padding-left: 20px;
        min-width: 70px;
    }
    
    .task-table .task-actions {
        min-width: 50px;
    }
    
    .task-menu-dropdown {
        min-width: 90px;
        right: auto;
        left: 0;
    }
    
    .task-menu-item {
        font-size: 12px;
        padding: 8px 12px;
    }
    
    .task-table {
        font-size: 11px;
        min-width: 600px;
    }
    
    .task-table th,
    .task-table td {
        padding: 6px 3px;
    }
    
    .modal-content {
        width: 98%;
        max-height: 95vh;
    }
    
    .modal-header {
        padding: 12px;
    }
    
    .modal-body {
        padding: 12px;
    }
}

/* 分类管理模态框样式 */
.category-list {
    max-height: 350px;
    overflow-y: auto;
    margin-bottom: 20px;
    border: none; /* 移除外边框，更扁平 */
}

.category-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    margin-bottom: 4px;
    border-radius: var(--r-md);
    background: transparent;
    transition: background-color 0.2s;
    color: var(--text);
}

.category-item:hover {
    background-color: var(--bg); /* 悬停时显示淡背景 */
}

.category-item:last-child {
    margin-bottom: 0;
}

.category-name-display {
    font-size: 15px;
    color: var(--text);
    flex: 1;
    font-weight: 400;
}

.category-actions {
    display: flex;
    gap: 8px;
    /* 始终显示操作按钮，避免用户找不到 */
    opacity: 1;
}

/* 移除 hover 相关的 opacity 变化 */
/* .category-item:hover .category-actions { opacity: 1; } */

/* 移动端始终显示操作按钮 */
@media (max-width: 768px) {
    .category-actions {
        opacity: 1;
    }
}

.icon-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 14px;
    padding: 6px;
    border-radius: var(--r-sm);
    color: var(--muted-2); /* 默认淡色 */
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text); /* 悬停变深 */
}

.edit-btn:hover { color: var(--primary); }
.delete-btn:hover { color: var(--danger); }

.badge-system {
    font-size: 12px;
    background: transparent;
    color: var(--muted-2);
    padding: 2px 6px;
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    font-weight: 400;
}

.category-add-row {
    display: flex;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    margin-top: 8px;
}

.category-add-row input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    font-size: 14px;
    background: var(--bg);
    transition: all 0.2s;
    outline: none;
}

.category-add-row input:focus {
    background: white;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(193, 95, 60, 0.15);
}

/* 迁移确认界面样式 */
.migration-panel {
    padding: 20px;
    background: var(--bg);
    border-radius: var(--r-md);
    margin-bottom: 16px;
    animation: fadeIn 0.2s ease;
}

.migration-text {
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--text);
    line-height: 1.5;
}

.migration-select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: var(--r-md);
    background: white;
    font-size: 14px;
    margin-bottom: 16px;
    outline: none;
}

.migration-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- 新增：交互体验增强 --- */

/* 所有按钮点击时轻微缩放，提供触觉反馈 */
button:active, 
.btn-primary:active, 
.btn-secondary:active, 
.btn-danger:active,
.icon-btn:active,
.task-menu-btn:active {
    transform: scale(0.96);
    transition: transform 0.1s;
}

/* 修复：移动端点击出现“淡蓝矩形高亮”（iOS tap highlight / focus outline）
   - 仅影响触摸点击时的高亮呈现，不影响业务逻辑
   - 保留键盘可访问性：focus-visible 仍可由浏览器控制 */
button,
a,
[role="button"],
.btn-primary,
.btn-secondary,
.btn-danger,
.icon-btn,
.task-menu-btn,
.task-menu-item,
.fab-btn,
.fab-item,
.swipe-action-btn,
.quick-btn,
.date-bar-btn {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

button:focus:not(:focus-visible),
a:focus:not(:focus-visible),
[role="button"]:focus:not(:focus-visible) {
    outline: none;
}

/* 兜底：部分 iOS/Safari 不支持 :focus-visible，会导致点击后出现系统 focus 高亮。
   仅在触摸设备上强制去掉 focus/active 的 outline 与 box-shadow，避免“淡蓝矩形”。 */
@media (hover: none) and (pointer: coarse) {
    * {
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    }

    button:focus,
    button:active,
    a:focus,
    a:active,
    [role="button"]:focus,
    [role="button"]:active,
    .btn-primary:focus,
    .btn-secondary:focus,
    .btn-danger:focus,
    .icon-btn:focus,
    .task-menu-btn:focus,
    .task-menu-item:focus,
    .fab-btn:focus,
    .fab-item:focus,
    .swipe-action-btn:focus,
    .quick-btn:focus,
    .date-bar-btn:focus {
        outline: none !important;
        box-shadow: none !important;
    }
}

/* 优化模态框背景，使其过渡更柔和 */
.modal {
    transition: opacity 0.2s ease-in-out;
}

/* --- 日历页顶部栏优化 --- */
.header-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 16px; /* 与总结页保持一致 */
}

/* 移动端适配 */
@media (max-width: 768px) {
    .header-controls {
        margin-top: 12px;
        gap: 6px;
    }
}

/* --- 添加任务成功提示 --- */
.add-task-toast {
    background-color: #d4edda;
    color: #155724;
    padding: 0 16px;
    font-size: 14px;
    text-align: center;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.3s ease, opacity 0.3s ease, padding 0.3s ease;
}
.add-task-toast.show {
    max-height: 50px;
    opacity: 1;
    padding: 10px 16px;
}
.add-task-toast.fade-out {
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* --- App Logo 样式 --- */
.app-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}
.app-logo {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}
@media (max-width: 768px) {
    .app-logo {
        width: 28px;
        height: 28px;
    }
    .app-brand {
        gap: 8px;
    }
}

/* 日历和时间记录页面标题使用黑色 */
.page-calendar .app-title,
.page-summary .app-title {
    color: var(--text);
    font-weight: 600;
    letter-spacing: -0.5px;
}