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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #f5f7fa;
    min-height: 100vh;
}

.header {
    background: #fff;
    text-align: center;
    padding: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: relative;
}

.header h1 {
    font-size: 18px;
    color: #333;
    font-weight: 500;
}

.back-btn {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 20px;
    color: #666;
    text-decoration: none;
}

.more-btn {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 24px;
    color: #666;
}

.sub-header {
    background: linear-gradient(135deg, #5dade2 0%, #85c1e9 100%);
    color: white;
    padding: 20px;
    text-align: center;
    font-size: 20px;
    font-weight: 500;
}

.tabs {
    display: flex;
    background: white;
    border-bottom: 1px solid #e0e0e0;
}

.tab {
    flex: 1;
    padding: 15px;
    text-align: center;
    color: #666;
    text-decoration: none;
    font-size: 16px;
    position: relative;
    transition: all 0.3s;
}

.tab.active {
    color: #5b6dee;
    font-weight: 500;
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 3px;
    background: #5b6dee;
    border-radius: 3px 3px 0 0;
}

.order-list {
    padding: 15px;
}

.order-item {
    background: white;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.order-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid #f0f0f0;
}

.order-no {
    font-size: 14px;
    color: #666;
}

.order-status {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
}

.status-pending {
    background: #fef3c7;
    color: #92400e;
}

.status-completed {
    background: #d1fae5;
    color: #065f46;
}

.order-info {
    margin-bottom: 15px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 14px;
}

.info-label {
    color: #6c757d;
}

.info-value {
    color: #212529;
    font-weight: 500;
}

.order-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid #f0f0f0;
}

.order-time {
    font-size: 13px;
    color: #999;
}

.btn {
    padding: 8px 24px;
    border: none;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, #5b6dee 0%, #7b68ee 100%);
    color: white;
}

.btn-outline {
    background: white;
    color: #5b6dee;
    border: 1px solid #5b6dee;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #6c757d;
    display: none;
}

.empty-icon {
    display: none;
}

.empty-text {
    display: none;
}

.empty-subtext {
    display: none;
}