/* ==================== CSS Variables ==================== */
:root {
    /* 红金配色 - 二十周年主题 */
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-card: #3a3a3a;

    --color-primary: #d4af37;
    --color-primary-light: #f4d03f;
    --color-primary-dark: #b8860b;

    --color-accent: #dc143c;
    --color-accent-light: #ff6b6b;
    --color-accent-dark: #8b0000;

    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;

    --border-color: #d4af37;
    --shadow-color: rgba(212, 175, 55, 0.3);

    --font-family-base: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;

    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    --border-radius: 8px;
    --transition-base: all 0.3s ease;
}

/* ==================== Reset ==================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family-base);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    display: grid;
    grid-template-areas:
        "header header"
        "main aside";
    grid-template-columns: 1fr 320px;
    grid-template-rows: auto 1fr;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
}

input, select {
    font-family: inherit;
    font-size: inherit;
}

/* ==================== Layout ==================== */
.app-container {
    display: grid;
    grid-template-areas:
        "header header"
        "main aside";
    grid-template-columns: 1fr 320px;
    grid-template-rows: auto 1fr;
    gap: var(--spacing-md);
    height: 100%;
    width: 100%;
}

.app-header {
    grid-area: header;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--color-accent-dark), var(--color-accent));
    border-radius: var(--border-radius);
    border: 2px solid var(--color-primary);
    box-shadow: 0 4px 15px var(--shadow-color);
}

.app-title {
    font-size: 1.5rem;
    color: var(--color-primary);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    white-space: nowrap;
}

.header-controls {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-icon {
    padding: var(--spacing-sm);
    background: transparent;
    border: 1px solid var(--color-primary);
    border-radius: var(--border-radius);
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition-base);
}

.btn-icon:hover {
    background-color: rgba(212, 175, 55, 0.2);
}

.lottery-area {
    grid-area: main;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 2px solid var(--border-color);
    padding: var(--spacing-md);
    overflow: hidden;
    position: relative;
}

/* 抽奖区域标题 */
.lottery-header {
    width: 100%;
    text-align: center;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}

.lottery-title {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--color-primary);
    text-shadow: 0 0 20px var(--shadow-color);
    letter-spacing: 2px;
    white-space: nowrap;
}

.lottery-display {
    width: 100%;
    max-width: 700px;
    min-height: 400px;
    background: linear-gradient(145deg, var(--bg-card), var(--bg-primary));
    border-radius: var(--border-radius);
    border: 3px solid var(--color-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 8px 30px var(--shadow-color);
    overflow: visible;
    position: relative;
}

.lottery-stage {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.lottery-controls {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
    justify-content: center;
}

.btn-large {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1.1rem;
}

.control-panel {
    grid-area: aside;
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 2px solid var(--border-color);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    overflow: hidden;
    height: 100%;
}

.panel-section {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-section:last-child {
    flex: 1;
}

.panel-title {
    font-size: 1rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

/* ==================== Buttons ==================== */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition-base);
    text-transform: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--bg-primary);
    border: 2px solid var(--color-primary-light);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    box-shadow: 0 4px 15px var(--shadow-color);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-primary);
    border-color: var(--color-primary-light);
}

.btn-info {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
    color: var(--text-primary);
    border: 1px solid var(--color-accent-light);
}

.btn-info:hover {
    background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
}

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
    .app-container {
        grid-template-areas:
            "header"
            "main"
            "aside";
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr auto;
    }

    .app-title {
        font-size: 1.25rem;
    }

    .winner-display .winner-name {
        font-size: 2rem;
    }
}

/* ==================== Prize List ==================== */
.prize-list {
    max-height: 120px;
    overflow-y: auto;
    margin-bottom: var(--spacing-sm);
}

.prize-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px var(--spacing-sm);
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 4px;
    transition: var(--transition-base);
    font-size: 0.85rem;
}

.prize-item.selected {
    border-color: var(--color-primary);
    background-color: rgba(212, 175, 55, 0.1);
}

.prize-item.exhausted {
    opacity: 0.5;
}

.prize-info {
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow: hidden;
}

.prize-name {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.prize-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.prize-progress {
    font-size: 0.75rem;
    color: var(--color-primary-light);
    margin-top: 2px;
}

.prize-actions {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.prize-edit-form {
    background-color: var(--bg-primary);
    border: 1px solid var(--color-primary);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    margin-top: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.prize-edit-form .edit-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.prize-edit-form label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    min-width: 70px;
    text-align: right;
}

.prize-edit-form input {
    flex: 1;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 0.875rem;
}

.prize-edit-form input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.prize-edit-form .edit-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.completed-tag {
    font-size: 0.75rem;
    color: var(--text-muted);
    padding: 2px 8px;
    background: var(--bg-card);
    border-radius: 4px;
}

/* ==================== Participant Controls ==================== */
.participant-controls textarea {
    width: 100%;
    height: 80px;
    padding: var(--spacing-sm);
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-family: inherit;
    resize: none;
    margin-bottom: var(--spacing-sm);
    font-size: 0.85rem;
}

.participant-controls textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.import-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.import-buttons label[for="excel-upload"] {
    cursor: pointer;
    display: inline-block;
}

.import-buttons .btn-small {
    padding: 4px 8px;
    font-size: 0.75rem;
}

.participant-count {
    margin-top: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.8rem;
    line-height: 1.4;
}

.participant-count .count-total {
    color: var(--color-primary);
    font-weight: bold;
}

.participant-count .count-won {
    color: var(--color-accent-light);
    font-weight: bold;
}

.participant-count .count-remaining {
    color: #28a745;
    font-weight: bold;
    transition: color 0.3s;
}

.participant-count .count-remaining.zero {
    color: var(--text-muted);
}

.participant-count .count-updating {
    animation: countUpdate 0.3s ease-out;
}

@keyframes countUpdate {
    0% { transform: scale(1.2); color: var(--color-accent); }
    100% { transform: scale(1); }
}

/* ==================== History List ==================== */
.history-list {
    height: 200px;
    overflow: auto;
    padding-right: var(--spacing-xs);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--bg-card);
}

.empty-history {
    text-align: center;
    color: var(--text-muted);
    padding: var(--spacing-md);
}

.history-group {
    margin-bottom: var(--spacing-sm);
    padding: 0 var(--spacing-xs);
}

.history-group-title {
    font-size: 0.9rem;
    color: var(--color-primary);
    font-weight: bold;
    padding: var(--spacing-xs);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-xs);
    white-space: nowrap;
    background-color: var(--bg-primary);
    position: sticky;
    top: 0;
    z-index: 10;
}

.history-item {
    display: flex;
    flex-wrap: nowrap;
    gap: var(--spacing-xs);
    align-items: center;
    padding: 6px var(--spacing-sm);
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    margin-bottom: 4px;
    font-size: 0.8rem;
    white-space: nowrap;
}

.history-round {
    color: var(--color-primary);
    font-weight: bold;
    min-width: 45px;
    flex-shrink: 0;
    white-space: nowrap;
}

.history-winners {
    flex: 1;
    color: var(--text-primary);
    white-space: nowrap;
    line-height: 1.2;
}

.history-time {
    color: var(--text-muted);
    font-size: 0.7rem;
    flex-shrink: 0;
    white-space: nowrap;
    margin-left: auto;
}

/* ==================== Result Display ==================== */
.result-container {
    text-align: center;
    padding: var(--spacing-xl);
}

.result-placeholder {
    font-size: 1.5rem;
    color: var(--text-muted);
}

.rolling-name {
    font-size: 2rem;
    color: var(--color-primary-light);
    animation: pulse 0.1s ease-in-out;
}

.winner-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.winner-label {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.winner-display .winner-name {
    font-size: 3.5rem;
    color: var(--color-primary);
    font-weight: bold;
    text-shadow: 0 0 30px var(--shadow-color);
    animation: winnerPop 0.5s ease-out;
}

.winner-suffix {
    font-size: 1.5rem;
    color: var(--color-accent-light);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes winnerPop {
    0% { transform: scale(0.5); opacity: 0; }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); opacity: 1; }
}

.win-animation {
    animation: glow 1s ease-in-out;
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 20px var(--shadow-color); }
    50% { box-shadow: 0 0 60px var(--color-primary); }
}

/* ==================== Button Variants ==================== */
.btn-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
}

.btn-stop {
    background: linear-gradient(135deg, #dc3545, #a02834);
    color: white;
    border: 2px solid #ff6b6b;
    animation: pulse 1s infinite;
}

.btn-stop:hover {
    background: linear-gradient(135deg, #ff6b6b, #dc3545);
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.4);
}

.btn-danger {
    background-color: var(--color-accent);
    color: white;
    border: 1px solid var(--color-accent-light);
}

.btn-danger:hover {
    background-color: var(--color-accent-light);
}

/* ==================== Slot Machine / Rolling Wheel Styles ==================== */
.roulette-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
}

.roulette-row {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.roulette-row-top {
    margin-bottom: var(--spacing-sm);
}

.roulette-slot {
    width: 160px;
    height: 200px;
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    border: 3px solid var(--color-primary);
    border-radius: var(--border-radius);
    overflow: hidden;
    position: relative;
    box-shadow:
        0 0 20px var(--shadow-color),
        inset 0 0 30px rgba(0,0,0,0.5);
}

.roulette-slot::before,
.roulette-slot::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 40px;
    z-index: 10;
    pointer-events: none;
}

.roulette-slot::before {
    top: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.8), transparent);
}

.roulette-slot::after {
    bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
}

.roulette-window {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.roulette-item {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-primary);
    transition: transform 0.1s linear;
    backface-visibility: hidden;
}

.roulette-item.current {
    color: var(--color-primary);
    text-shadow: 0 0 20px var(--color-primary);
    font-size: 2rem;
}

.roulette-item.unrevealed {
    color: var(--text-muted);
    font-size: 3rem;
    opacity: 0.5;
}

.roulette-item .item-name {
    margin-bottom: var(--spacing-xs);
}

.roulette-item .item-dept {
    font-size: 0.875rem;
    color: var(--text-secondary);
    opacity: 0.8;
}

/* 滚动动画 */
@keyframes rollUp {
    0% { transform: translateY(100%); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100%); opacity: 0; }
}

.roulette-rolling .roulette-item {
    animation: rollUp 0.15s linear infinite;
}

.roulette-rolling.fast .roulette-item {
    animation-duration: 0.08s;
}

.roulette-rolling.slow .roulette-item {
    animation-duration: 0.25s;
}

/* 最终结果显示 - 金色主题 */
.roulette-slot.final {
    border-color: var(--color-primary);
    box-shadow:
        0 0 30px var(--shadow-color),
        inset 0 0 30px rgba(0,0,0,0.3);
    animation: slotWin 0.5s ease-out;
}

.roulette-slot.final .roulette-item.current {
    color: var(--color-primary-light);
    text-shadow: 0 0 30px var(--color-primary);
}

@keyframes slotWin {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* 中央指示灯 */
.roulette-slot .light-indicator {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--color-primary);
    animation: lightBlink 0.5s infinite;
    z-index: 20;
}

.roulette-slot.final .light-indicator {
    background: var(--color-primary-light);
    box-shadow: 0 0 30px var(--color-primary);
    animation: none;
}

@keyframes lightBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* 结果显示区域 */
.winner-result-container {
    text-align: center;
    padding: var(--spacing-lg);
    max-height: 90%;
    overflow-y: auto;
}

.prize-title {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xl);
    text-shadow: 0 0 20px var(--shadow-color);
}

.draw-status {
    margin-top: var(--spacing-xl);
    font-size: 1.25rem;
    color: var(--color-primary);
    animation: pulse 1s infinite;
}

.congrats-text {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
    color: var(--color-accent-light);
}

/* 保留原有的一些动画 */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

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

@keyframes fastRoll {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(0.95); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ==================== Prize List Updates ==================== */
.prize-item.current {
    border-color: var(--color-primary);
    background: linear-gradient(90deg, rgba(212, 175, 55, 0.2), transparent);
}

.prize-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.prize-progress {
    font-size: 0.75rem;
    color: var(--color-primary-light);
}

.completed-tag {
    font-size: 0.75rem;
    color: var(--text-muted);
    padding: 2px 8px;
    background: var(--bg-card);
    border-radius: 4px;
}

/* ==================== History List Updates ==================== */
.history-group {
    margin-bottom: var(--spacing-md);
}

.history-group-title {
    font-size: 1rem;
    color: var(--color-primary);
    font-weight: bold;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--spacing-xs);
}

.history-round {
    color: var(--color-primary);
    font-weight: bold;
    min-width: 50px;
}

.btn-success {
    background: linear-gradient(135deg, #28a745, #1e7e34);
    color: white;
    border: 1px solid #34ce57;
}

.btn-success:hover {
    background: linear-gradient(135deg, #34ce57, #28a745);
}

.btn-warning {
    background: linear-gradient(135deg, #ff9800, #f57c00);
    color: white;
    border: 1px solid #ffb74d;
}

.btn-warning:hover {
    background: linear-gradient(135deg, #ffa726, #ff9800);
}

.history-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

/* 缺席复选框样式 */
.absent-label {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid var(--color-accent);
    border-radius: 4px;
    font-size: 0.875rem;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.3s, background 0.3s, border-color 0.3s;
    z-index: 30;
    color: var(--color-accent);
    font-weight: 600;
}

.absent-label:hover {
    background: var(--color-accent);
    color: white;
}

.absent-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--color-accent);
}

.roulette-slot.final:hover .absent-label {
    opacity: 1;
}

.absent-label:has(input:checked) {
    background: var(--color-accent);
    color: white;
    opacity: 1;
}

/* 结果区域操作按钮容器 */
.result-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

/* 批量补抽按钮 */
.batch-reschedule-btn {
    background: linear-gradient(135deg, #ff6b6b, #ee5a5a);
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    animation: pulse-warning 1.5s infinite;
    box-shadow: 0 4px 15px rgba(238, 90, 90, 0.4);
}

.batch-reschedule-btn:hover {
    background: linear-gradient(135deg, #ee5a5a, #dc4848);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(238, 90, 90, 0.5);
}

@keyframes pulse-warning {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 4px 15px rgba(238, 90, 90, 0.4);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 6px 25px rgba(238, 90, 90, 0.6);
    }
}

/* 关闭结果按钮 */
.close-result-btn {
    padding: 12px 24px;
    font-size: 1rem;
}

/* ==================== Confetti / Celebration Effects ==================== */
/* 礼花容器 - 在抽奖区域内 */
.confetti-container {
    position: absolute;
    bottom: 20%;
    width: 100px;
    height: 200px;
    pointer-events: none;
    z-index: 100;
    overflow: visible;
}

.confetti-left {
    left: 10%;
}

.confetti-right {
    right: 10%;
}

.confetti-piece {
    position: absolute;
    width: 8px;
    height: 16px;
    bottom: 0;
    animation: confetti-shoot 2.5s ease-out forwards;
}

.confetti-piece.square {
    width: 10px;
    height: 10px;
}

.confetti-piece.circle {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.confetti-piece.ribbon {
    width: 6px;
    height: 24px;
    border-radius: 3px;
}

/* 礼花发射动画 - 从下方朝上空发射，然后落下 */
@keyframes confetti-shoot {
    0% {
        transform: translate(0, 0) rotate(0deg) scale(1);
        opacity: 1;
    }
    40% {
        /* 最高点，在卡片上方 */
        transform: translate(var(--drift-x, 30px), -300px) rotate(180deg) scale(1);
        opacity: 1;
    }
    100% {
        /* 落下到下方 */
        transform: translate(var(--drift-x, 50px), 200px) rotate(720deg) scale(0.5);
        opacity: 0;
    }
}

/* 左侧喷射 - 向右上方 */
.confetti-left .confetti-piece {
    left: 50%;
    --drift-x: 60px;
    animation: confetti-left-shoot 2.5s ease-out forwards;
}

@keyframes confetti-left-shoot {
    0% {
        transform: translate(0, 0) rotate(0deg) scale(1);
        opacity: 1;
    }
    40% {
        transform: translate(80px, -280px) rotate(200deg) scale(1);
        opacity: 1;
    }
    100% {
        transform: translate(120px, 180px) rotate(800deg) scale(0.5);
        opacity: 0;
    }
}

/* 右侧喷射 - 向左上方 */
.confetti-right .confetti-piece {
    right: 50%;
    --drift-x: -60px;
    animation: confetti-right-shoot 2.5s ease-out forwards;
}

@keyframes confetti-right-shoot {
    0% {
        transform: translate(0, 0) rotate(0deg) scale(1);
        opacity: 1;
    }
    40% {
        transform: translate(-80px, -280px) rotate(-200deg) scale(1);
        opacity: 1;
    }
    100% {
        transform: translate(-120px, 180px) rotate(-800deg) scale(0.5);
        opacity: 0;
    }
}

/* 彩带效果 - 更长的飘带 */
.streamer {
    position: absolute;
    width: 4px;
    height: 60px;
    bottom: 0;
    border-radius: 2px;
    animation: streamer-shoot 3s ease-out forwards;
}

.confetti-left .streamer {
    left: 50%;
    animation: streamer-left-shoot 3s ease-out forwards;
}

.confetti-right .streamer {
    right: 50%;
    animation: streamer-right-shoot 3s ease-out forwards;
}

@keyframes streamer-left-shoot {
    0% {
        transform: translate(0, 0) rotate(0deg);
        opacity: 1;
    }
    40% {
        transform: translate(60px, -250px) rotate(360deg);
        opacity: 1;
    }
    100% {
        transform: translate(100px, 150px) rotate(720deg);
        opacity: 0;
    }
}

@keyframes streamer-right-shoot {
    0% {
        transform: translate(0, 0) rotate(0deg);
        opacity: 1;
    }
    40% {
        transform: translate(-60px, -250px) rotate(-360deg);
        opacity: 1;
    }
    100% {
        transform: translate(-100px, 150px) rotate(-720deg);
        opacity: 0;
    }
}