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

html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: transparent;
}

#holiday-card {
    width: 100%;
    height: 100%;
    display: flex;
}

.holiday-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
    color: white;
    height: 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.holiday-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0) 70%);
    animation: shimmer 8s infinite linear;
}

@keyframes shimmer {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.card-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    z-index: 1;
}

.holiday-icon {
    font-size: 32px;
    margin-right: 12px;
    filter: drop-shadow(0 3px 6px rgba(0,0,0,0.3));
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.holiday-info {
    flex: 1;
    min-width: 0;
}

.holiday-name {
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 4px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    letter-spacing: 0.5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.holiday-date {
    font-size: 12px;
    opacity: 0.95;
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.countdown-section {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-align: center;
    z-index: 1;
    margin: 5px 0;
    gap: 10px;
}

.countdown-main {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 1;
    gap: 15px;
}

.control-btn {
    background: rgba(255, 255, 255, 0.25);
    border: none;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: bold;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(15px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    flex-shrink: 0;
    display: flex !important;
    visibility: visible !important;
}

.control-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.35);
    transform: scale(1.15);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.control-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: scale(0.9);
}

.countdown-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
    flex-shrink: 0;
}

.countdown-days {
    display: flex;
    align-items: baseline;
    margin-bottom: 4px;
}

.days-number {
    font-size: 42px;
    font-weight: 900;
    font-family: 'Courier New', monospace;
    margin-right: 6px;
    text-shadow: 0 4px 8px rgba(0,0,0,0.4);
    background: linear-gradient(135deg, #fff 0%, #f0f0f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    font-weight: 900 !important;
}

.days-label {
    font-size: 16px;
    font-weight: 700;
    opacity: 0.95;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.countdown-text {
    font-size: 12px;
    opacity: 0.9;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

/* 隐藏分页信息 */
.card-footer,
.pagination {
    display: none !important;
}

/* ==================== 响应式调整 ==================== */

/* 中等尺寸调整 */
@media (max-width: 380px) {
    .holiday-card {
        padding: 16px;
    }
    
    .holiday-icon {
        font-size: 28px;
        margin-right: 10px;
    }
    
    .holiday-name {
        font-size: 24px;
    }
    
    .holiday-date {
        font-size: 20px;
    }
    
    .days-number {
        font-size: 36px;
        font-weight: 900 !important;
    }
    
    .days-label {
        font-size: 14px;
    }
    
    .control-btn {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }
    
    .countdown-main {
        gap: 12px;
    }
    
    .countdown-display {
        min-width: 70px;
    }
}

/* 小尺寸调整 - 小卡片模式，隐藏图标但保持按钮布局 */
@media (max-width: 340px) {
    .holiday-card {
        padding: 12px;
        border-radius: 16px;
    }
    
    .card-header {
        margin-bottom: 8px;
        justify-content: center;
    }
    
    /* 隐藏图标 */
    .holiday-icon {
        display: none;
    }
    
    .holiday-info {
        text-align: center;
    }
    
    .holiday-name {
        font-size: 15px;
        margin-bottom: 2px;
    }
    
    .holiday-date {
        font-size: 11px;
    }
    
    .countdown-section {
        margin: 0;
        gap: 6px;
    }
    
    /* 确保按钮布局正常 */
    .countdown-main {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        gap: 8px;
    }
    
    /* 确保左右按钮都显示 */
    .control-btn.prev,
    .control-btn.next {
        display: flex !important;
        visibility: visible !important;
        opacity: 1 !important;
    }
    
    .days-number {
        font-size: 32px;
        font-weight: 900 !important;
    }
    
    .days-label {
        font-size: 13px;
    }
    
    .countdown-text {
        font-size: 11px;
    }
    
    .control-btn {
        width: 28px;
        height: 28px;
        font-size: 14px;
    }
    
    .countdown-display {
        min-width: 60px;
    }
}

/* 超小尺寸调整 */
@media (max-width: 300px) {
    .holiday-card {
        padding: 10px;
        border-radius: 14px;
    }
    
    .card-header {
        margin-bottom: 6px;
    }
    
    .holiday-name {
        font-size: 14px;
    }
    
    .holiday-date {
        font-size: 10px;
    }
    
    .days-number {
        font-size: 28px;
        font-weight: 900 !important;
    }
    
    .days-label {
        font-size: 12px;
    }
    
    .countdown-text {
        font-size: 10px;
    }
    
    .control-btn {
        width: 26px;
        height: 26px;
        font-size: 13px;
    }
    
    .countdown-main {
        gap: 6px;
    }
    
    .countdown-display {
        min-width: 55px;
    }
}

/* 极端小尺寸调整 */
@media (max-width: 260px) {
    .holiday-card {
        padding: 8px;
    }
    
    .card-header {
        margin-bottom: 10px;
    }
    
    .holiday-name {
        margin-top: 15px;
        font-size: 24px;
    }
    
    .holiday-date {
        margin-top: 15px;
        font-size: 17px;
    }
    
    .countdown-section {
        flex-direction: row;
        gap: 4px;
    }
    
    .countdown-main {
        width: 100%;
        gap: 4px;
        justify-content: space-between;
    }
    
    .days-number {
        font-size: 20px;
        font-weight: 900 !important;
    }
    
    .days-label {
        font-size: 16px;
    }
    
    .countdown-text {
        font-size: 16px;
    }
    
    .control-btn {
        width: 24px;
        height: 24px;
        font-size: 12px;
    }
}

/* 确保文字不会换行 */
.holiday-name,
.holiday-date,
.countdown-text {
    white-space: nowrap;
}

/* 防止布局错位 */
.countdown-section,
.countdown-main,
.countdown-display {
    flex-shrink: 0;
}