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

:root {
    --primary: #4A90D9;
    --success: #52C41A;
    --warning: #FAAD14;
    --danger: #FF4D4F;
    --text: #333;
    --text-light: #999;
    --bg: #F5F5F5;
    --white: #FFF;
    --border: #E8E8E8;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 100%;
    padding: 15px;
    padding-bottom: 80px;
}

/* 头部 */
.header {
    background: var(--white);
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.header h1 {
    font-size: 20px;
    color: var(--primary);
    margin-bottom: 10px;
}

.header .subtitle {
    font-size: 13px;
    color: var(--text-light);
}

/* 统计卡片 */
.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 15px;
}

.stat-card {
    background: var(--white);
    padding: 12px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.stat-card .number {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary);
}

.stat-card .label {
    font-size: 12px;
    color: var(--text-light);
}

/* 任务列表 */
.task-list {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.task-item {
    display: flex;
    align-items: center;
    padding: 15px;
    border-bottom: 1px solid var(--border);
    text-decoration: none;
    color: var(--text);
}

.task-item:last-child {
    border-bottom: none;
}

.task-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    font-size: 18px;
}

.task-icon.weekly {
    background: #E6F7FF;
    color: var(--primary);
}

.task-icon.daily {
    background: #F6FFED;
    color: var(--success);
}

.task-icon.irregular {
    background: #FFF7E6;
    color: var(--warning);
}

.task-info {
    flex: 1;
}

.task-info .name {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 3px;
}

.task-info .type {
    font-size: 12px;
    color: var(--text-light);
}

.task-arrow {
    color: var(--text-light);
    font-size: 20px;
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 14px;
    text-align: center;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
}

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

.btn-success {
    background: var(--success);
    color: var(--white);
}

.btn-warning {
    background: var(--warning);
    color: var(--white);
}

.btn-danger {
    background: var(--danger);
    color: var(--white);
}

.btn-block {
    display: block;
    width: 100%;
}

.btn-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 15px;
}

/* 表单 */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-size: 14px;
    margin-bottom: 5px;
    color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

/* 日历 */
.calendar {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    margin-bottom: 15px;
}

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px;
    background: var(--primary);
    color: var(--white);
}

.calendar-header .nav-btn {
    background: rgba(255,255,255,0.2);
    border: none;
    color: var(--white);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 16px;
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    background: #FAFAFA;
    border-bottom: 1px solid var(--border);
}

.calendar-weekdays span {
    padding: 10px;
    text-align: center;
    font-size: 12px;
    color: var(--text-light);
    font-weight: 500;
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
}

.calendar-day {
    padding: 10px;
    text-align: center;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    min-height: 60px;
    transition: background 0.3s;
}

.calendar-day:hover {
    background: #FAFAFA;
}

.calendar-day.other-month {
    color: var(--text-light);
    background: #FAFAFA;
}

.calendar-day.today {
    background: #E6F7FF;
}

.calendar-day .day-number {
    font-size: 14px;
    margin-bottom: 5px;
}

.calendar-day .status-icon {
    font-size: 12px;
}

.calendar-day.completed {
    background: #F6FFED;
}

.calendar-day.completed .status-icon {
    color: var(--success);
}

.calendar-day.abnormal {
    background: #FFF1F0;
}

.calendar-day.abnormal .status-icon {
    color: var(--danger);
}

.calendar-day.missed {
    background: #FFF1F0;
}

.calendar-day.missed .status-icon {
    color: var(--danger);
}

.calendar-day.pending {
    background: #FFF7E6;
}

.calendar-day.pending .status-icon {
    color: var(--warning);
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: 12px;
    width: 100%;
    max-width: 400px;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    font-size: 16px;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-light);
    cursor: pointer;
}

.modal-body {
    padding: 15px;
}

.modal-footer {
    padding: 15px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 10px;
}

/* 历史记录 */
.history-item {
    background: var(--white);
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.history-item .date {
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 5px;
}

.history-item .result {
    font-size: 14px;
    font-weight: 500;
}

.history-item .result.normal {
    color: var(--success);
}

.history-item .result.abnormal {
    color: var(--danger);
}

.history-item .remark {
    font-size: 13px;
    color: var(--text-light);
    margin-top: 5px;
}

/* 图例 */
.legend {
    display: flex;
    justify-content: center;
    gap: 15px;
    padding: 10px;
    background: var(--white);
    border-radius: 10px;
    margin-bottom: 15px;
    font-size: 12px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.legend-dot.completed {
    background: var(--success);
}

.legend-dot.missed {
    background: var(--danger);
}

.legend-dot.pending {
    background: var(--warning);
}

.legend-dot.abnormal {
    background: var(--danger);
}

.legend-dot.future {
    background: var(--border);
}

/* 页面标题 */
.page-title {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.page-title .back-btn {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--text);
    margin-right: 10px;
    cursor: pointer;
}

.page-title h2 {
    font-size: 18px;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-light);
}

.empty-state .icon {
    font-size: 48px;
    margin-bottom: 10px;
}

/* 异常记录 */
.exception-item {
    background: #FFF1F0;
    border-left: 3px solid var(--danger);
    padding: 12px;
    border-radius: 0 8px 8px 0;
    margin-bottom: 10px;
}

.exception-item .reason {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 5px;
}

.exception-item .details {
    font-size: 12px;
    color: var(--text-light);
}