:root {
    --primary-color: #2b7efb;
    --primary-hover: #1b6eeb;
    --success-color: #07c160;
    --warning-color: #ff9c19;
    --danger-color: #fa5151;
    --text-primary: #1f2329;
    --text-secondary: #646a73;
    --text-light: #8f959e;
    --border-color: #e5e6eb;
    --background: #f5f6f7;
    --card-background: #ffffff;
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Helvetica Neue', sans-serif;
}

body {
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

.page-header {
    margin-bottom: 32px;
}

.page-header h1 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 8px;
}

.sub-title {
    color: var(--text-secondary);
    font-size: 14px;
}

.rooms-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.room-card {
    background: var(--card-background);
    border-radius: 12px;
    padding: 16px;
    box-shadow: var(--shadow);
    animation: cardAppear 0.5s ease backwards;
}

.room-card:nth-child(1) { animation-delay: 0.1s; }
.room-card:nth-child(2) { animation-delay: 0.2s; }
.room-card:nth-child(3) { animation-delay: 0.3s; }

.room-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.room-header h2 {
    font-size: 20px;
    font-weight: 600;
}

.room-status {
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 13px;
    animation: pulse 2s infinite;
}

.room-status.available {
    background-color: rgba(7, 193, 96, 0.1);
    color: var(--success-color);
}

.room-status.unavailable {
    background-color: rgba(250, 81, 81, 0.1);
    color: var(--danger-color);
}

.room-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.info-item {
    display: flex;
    flex-direction: column;
}

.info-item .label {
    color: var(--text-light);
    font-size: 13px;
    margin-bottom: 4px;
}

.info-item .value {
    font-size: 16px;
    font-weight: 500;
}

.room-schedule {
    max-width: 100%;
    margin: 0 auto;
}

.schedule-title {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.time-slots {
    overflow-x: hidden;
    scroll-behavior: smooth;
}

.time-slots-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    padding: 12px;
}

.time-slot {
    background: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 8px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    position: relative;
}

.time-slot.available {
    background-color: rgba(76, 175, 80, 0.05);
    border-color: rgba(76, 175, 80, 0.3);
}

.time-slot.available:hover {
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(76, 175, 80, 0.15);
    border-color: var(--success-color);
}

.time-slot.booked {
    background-color: rgba(244, 67, 54, 0.05);
    border-color: rgba(244, 67, 54, 0.3);
    cursor: not-allowed;
    opacity: 0.8;
}

.time-slot.selected {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 2px 12px rgba(43, 126, 251, 0.3);
}

.time-slot.selected .status-text {
    color: rgba(255, 255, 255, 0.9);
}

.time-text {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
}

.time-slot.selected .time-text {
    color: white;
}

.status-text {
    font-size: 12px;
    color: var(--success-color);
}

.status-text.booked {
    color: var(--danger-color);
}

.book-btn {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease;
    position: relative;
    overflow: hidden;
}

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

.book-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.book-btn:active::after {
    width: 300px;
    height: 300px;
}

/* 弹窗样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 560px;
    margin: 40px auto;
    background: var(--card-background);
    border-radius: 12px;
    overflow: hidden;
}

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

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

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

.modal-body {
    padding: 24px;
}

.date-picker {
    margin: 20px 0;
}

.date-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
}

.time-picker {
    display: grid;
    gap: 20px;
}

.time-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    padding: 16px 0;
}

.time-period {
    background: var(--background);
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 16px;
}

.time-period h4 {
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-weight: 500;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.modal-footer button {
    padding: 8px 24px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
}

.cancel-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.confirm-btn {
    background-color: var(--primary-color);
    border: none;
    color: white;
}

/* 响应式适配 */
@media (max-width: 768px) {
    .container {
        padding: 16px;
    }

    .modal-content {
        width: 95%;
        margin: 20px auto;
    }
}

.toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-100%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 14px;
    z-index: 2000;
    opacity: 0;
    transition: all 0.3s ease;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* 加载动画 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.8s linear infinite;
}

/* 动画关键帧 */
@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes checkmark {
    from {
        transform: scale(0) rotate(-45deg);
    }
    to {
        transform: scale(1) rotate(0);
    }
}

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

/* 脉冲动画效果 */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.loading-slots {
    text-align: center;
    padding: 20px;
    color: var(--text-secondary);
    font-size: 14px;
}

.error-slots {
    text-align: center;
    padding: 16px;
    color: var(--danger-color);
    background-color: rgba(244, 67, 54, 0.1);
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.error-slots:hover {
    background-color: rgba(244, 67, 54, 0.15);
}

/* 选中动画 */
@keyframes selectPulse {
    0% {
        transform: scale(1) translateY(-2px);
    }
    50% {
        transform: scale(1.05) translateY(-2px);
    }
    100% {
        transform: scale(1) translateY(-2px);
    }
}

.time-slot.selected {
    animation: selectPulse 0.3s ease;
}

/* 点击涟漪效果 */
.time-slot::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, white 10%, transparent 10.01%);
    transform: translate(-50%, -50%) scale(0);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.4s, opacity 0.8s;
}

.time-slot:active::after {
    transform: translate(-50%, -50%) scale(4);
    opacity: 0.3;
    transition: 0s;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .time-slots-grid {
        gap: 8px;
        padding: 8px;
    }

    .time-slot {
        padding: 10px 6px;
    }

    .time-text {
        font-size: 14px;
    }

    .status-text {
        font-size: 11px;
    }
}

/* 响应式布局调整 */
@media (max-width: 1200px) {
    .time-slots-grid {
        grid-template-columns: repeat(auto-fill, minmax(85px, 1fr));
        gap: 10px;
    }
}

@media (max-width: 768px) {
    .time-slots-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
        gap: 8px;
        padding: 8px;
    }

    .time-slot {
        padding: 8px 6px;
    }

    .time-text {
        font-size: 14px;
    }

    .status-text {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .time-slots-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 6px;
        padding: 6px;
    }

    .time-slot {
        padding: 6px 4px;
    }

    .time-text {
        font-size: 13px;
    }

    .status-text {
        font-size: 11px;
    }
}

.time-slots-container {
    padding: 12px;
}

.period-title {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 12px 0 8px;
    padding-left: 4px;
}

.time-slots-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 16px;
}