/* ClassPet Pro - 大屏优化样式 v4 - 现代化设计 */

/* CSS变量 - 统一主题系统 */
:root {
    /* 主色调 */
    --color-primary: #667eea;
    --color-primary-rgb: 102, 126, 234;
    --color-primary-dark: #764ba2;
    --color-primary-dark-rgb: 118, 75, 162;
    --color-primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --color-primary-gradient-reverse: linear-gradient(135deg, #764ba2 0%, #667eea 100%);

    /* 次要色调 */
    --color-secondary: #f093fb;
    --color-secondary-rgb: 240, 147, 251;
    --color-secondary-dark: #f5576c;
    --color-secondary-dark-rgb: 245, 87, 108;
    --color-secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);

    /* 状态色 */
    --color-success: #51cf66;
    --color-success-gradient: linear-gradient(135deg, #51cf66 0%, #37b24d 100%);
    --color-danger: #ff6b6b;
    --color-danger-gradient: linear-gradient(135deg, #ff6b6b 0%, #e03131 100%);
    --color-warning: #ff922b;
    --color-warning-gradient: linear-gradient(135deg, #ff922b 0%, #e67700 100%);
    --color-info: #228be6;
    --color-info-gradient: linear-gradient(135deg, #228be6 0%, #1971c2 100%);

    /* 中性色 */
    --color-white: #ffffff;
    --color-light: #f8f9fa;
    --color-light-gray: #e9ecef;
    --color-gray: #dee2e6;
    --color-gray-dark: #adb5bd;
    --color-dark: #495057;
    --color-darker: #343a40;
    --color-black: #212529;

    /* 宠物阶段颜色 - 优化后的配色 */
    --color-stage-egg: linear-gradient(135deg, #FFE4B5 0%, #FFDAB9 100%);
    --color-stage-egg-bg: #FFF5E6;
    --color-stage-baby: linear-gradient(135deg, #98FB98 0%, #90EE90 100%);
    --color-stage-baby-bg: #F0FFF4;
    --color-stage-young: linear-gradient(135deg, #87CEEB 0%, #87CEFA 100%);
    --color-stage-young-bg: #E7F5FF;
    --color-stage-adult: linear-gradient(135deg, #DDA0DD 0%, #DA70D6 100%);
    --color-stage-adult-bg: #FFF0F5;

    /* 阴影 - 更柔和的阴影 */
    --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 20px rgba(var(--color-primary-rgb), 0.3);

    /* 圆角 */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-pill: 9999px;

    /* 动画 */
    --transition-fast: 0.15s;
    --transition-normal: 0.3s;
    --transition-slow: 0.5s;
    --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* 布局 */
    --header-height: 90px;
    --max-content-width: 1800px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--color-primary-gradient);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
    min-height: 100vh;
    overflow: hidden;
}

/* 动态背景动画 */
@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* 添加背景装饰元素 */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* 顶部标题栏 */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--header-height);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.class-name {
    font-size: clamp(24px, 3vw, 36px);
    color: var(--color-darker);
    font-weight: 800;
    background: var(--color-primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
    animation: textShimmer 3s ease-in-out infinite;
}

@keyframes textShimmer {
    0%, 100% {
        filter: brightness(1);
    }
    50% {
        filter: brightness(1.2);
    }
}

/* 按钮容器 */
.header-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn-style, .btn-teacher {
    padding: 12px 28px;
    font-size: clamp(14px, 1.8vw, 16px);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-weight: 600;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

/* 按钮涟漪效果 */
.btn-style::before, .btn-teacher::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-style:hover::before, .btn-teacher:hover::before {
    width: 300px;
    height: 300px;
}

.btn-style {
    background: var(--color-secondary-gradient);
    box-shadow: 0 4px 15px rgba(var(--color-secondary-dark-rgb), 0.4);
    margin-right: 0;
}

.btn-style:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(var(--color-secondary-dark-rgb), 0.5);
}

.btn-teacher {
    background: var(--color-primary-gradient);
    box-shadow: 0 4px 15px rgba(var(--color-primary-rgb), 0.4);
}

.btn-teacher:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(var(--color-primary-rgb), 0.5);
}

.btn-style:active, .btn-teacher:active {
    transform: translateY(-1px);
}

.btn-style:focus-visible, .btn-teacher:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 3px;
}
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--color-secondary-dark-rgb), 0.5);
}

.btn-style:focus-visible {
    outline: 3px solid var(--color-secondary-dark);
    outline-offset: 2px;
}

.header-actions {
    display: flex;
    align-items: center;
}

/* 宠物网格 - 自适应40人布局 */
.pet-grid {
    display: grid;
    grid-template-columns: repeat(8, minmax(120px, 1fr));
    grid-auto-rows: minmax(160px, 1fr);
    gap: clamp(8px, 1.5vw, 12px);
    padding: calc(var(--header-height) + 20px) clamp(10px, 2vw, 20px) clamp(10px, 2vw, 20px);
    height: calc(100vh - var(--header-height));
    max-width: var(--max-content-width);
    margin: 0 auto;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(var(--color-primary-rgb), 0.3) transparent;
}

.pet-grid::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.pet-grid::-webkit-scrollbar-track {
    background: transparent;
}

.pet-grid::-webkit-scrollbar-thumb {
    background: rgba(var(--color-primary-rgb), 0.3);
    border-radius: 4px;
}

.pet-grid::-webkit-scrollbar-thumb:hover {
    background: rgba(var(--color-primary-rgb), 0.5);
}

/* 宠物卡片 */
.pet-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: clamp(12px, 2vw, 20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    min-height: clamp(150px, 18vw, 180px);
    border: 3px solid transparent;
    animation: cardFloat 6s ease-in-out infinite;
}

@keyframes cardFloat {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

.pet-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl), 0 0 30px rgba(var(--color-primary-rgb), 0.2);
    animation: none;
}

.pet-card:active {
    transform: translateY(-4px) scale(0.98);
}

.pet-card:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 4px;
    border-color: transparent;
}

/* 阶段特定边框颜色 */
.pet-card[data-stage="egg"] {
    border-color: transparent;
    background: linear-gradient(white, white) padding-box,
                var(--color-stage-egg) border-box;
}

.pet-card[data-stage="baby"] {
    border-color: transparent;
    background: linear-gradient(white, white) padding-box,
                var(--color-stage-baby) border-box;
}

.pet-card[data-stage="young"] {
    border-color: transparent;
    background: linear-gradient(white, white) padding-box,
                var(--color-stage-young) border-box;
}

/* 宠物图片容器 */
.pet-image-container {
    width: clamp(65px, 8vw, 80px);
    height: clamp(65px, 8vw, 80px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin-bottom: 10px;
    background: var(--color-light);
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.08);
}

.pet-image-container.stage-egg {
    background: var(--color-stage-egg-bg);
}

.pet-image-container.stage-baby {
    background: var(--color-stage-baby-bg);
}

.pet-image-container.stage-young {
    background: var(--color-stage-young-bg);
}

.pet-image-container.stage-adult {
    background: var(--color-stage-adult-bg);
}

.pet-image {
    font-size: clamp(40px, 6vw, 60px);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    animation: petBounce 2s ease-in-out infinite;
}

@keyframes petBounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

/* 学生名称 */
.student-name {
    font-size: clamp(12px, 1.5vw, 15px);
    font-weight: 600;
    color: var(--color-darker);
    text-align: center;
    margin: 6px 0;
    overflow: visible;
    white-space: normal;
    width: 100%;
    line-height: 1.3;
    min-height: auto;
    height: auto;
    block-size: auto;
}

/* 分数显示 */
.score-display {
    font-size: clamp(14px, 2vw, 18px);
    font-weight: 700;
    color: var(--color-primary);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 4px 0;
}

/* 阶段徽章 */
.stage-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    font-size: clamp(10px, 1.2vw, 12px);
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.stage-badge.egg {
    background: var(--color-stage-egg);
    color: #8B4513;
}

.stage-badge.baby {
    background: var(--color-stage-baby);
    color: #2E8B57;
}

.stage-badge.young {
    background: var(--color-stage-young);
    color: #1E90FF;
}

.stage-badge.adult {
    background: var(--color-stage-adult);
    color: #8B008B;
}
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    flex-shrink: 0;
}

.pet-image {
    width: 50px;
    height: 50px;
    object-fit: contain;
    transition: all 0.3s;
    font-size: 36px !important;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 宠物阶段颜色 */
.stage-egg { 
    background: linear-gradient(135deg, var(--color-stage-egg) 0%, var(--color-stage-egg-dark) 100%);
    --stage-badge-color: #FFB347;
}
.stage-baby { 
    background: linear-gradient(135deg, var(--color-stage-baby) 0%, var(--color-stage-baby-dark) 100%);
    --stage-badge-color: #32CD32;
}
.stage-young { 
    background: linear-gradient(135deg, var(--color-stage-young) 0%, var(--color-stage-young-dark) 100%);
    --stage-badge-color: #1E90FF;
}
.stage-adult { 
    background: linear-gradient(135deg, var(--color-stage-adult) 0%, var(--color-stage-adult-dark) 100%);
    --stage-badge-color: #9370DB;
}

/* 学生姓名 */
.student-name {
    font-size: clamp(10px, 1.5vw, 12px);
    font-weight: 600;
    color: var(--color-darker);
    margin-top: 6px;
    margin-bottom: 4px;
    text-align: center;
    white-space: normal;
    overflow-wrap: break-word;
    max-width: 100%;
    line-height: 1.2;
    padding: 0 2px;
}

/* 积分显示 */
.score-display {
    font-size: clamp(14px, 2vw, 16px);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 4px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* 阶段标签 */
.stage-badge {
    font-size: clamp(9px, 1.2vw, 11px);
    padding: clamp(2px, 0.3vw, 4px) clamp(6px, 1vw, 10px);
    border-radius: var(--radius-pill);
    color: var(--color-white);
    font-weight: 500;
    margin-top: 2px;
    background: var(--stage-badge-color, var(--color-primary));
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 弹窗样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.modal.active {
    display: flex;
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: clamp(25px, 4vw, 45px);
    max-width: 600px;
    width: min(90%, 600px);
    max-height: 90vh;
    overflow-y: auto;
    overflow-x: hidden;
    position: relative;
    animation: modalSlideIn var(--transition-normal) ease;
    box-shadow: var(--shadow-xl), 0 0 0 1px rgba(255, 255, 255, 0.2);
    border: none;
}

.modal-content::-webkit-scrollbar {
    width: 6px;
}

.modal-content::-webkit-scrollbar-track {
    background: var(--color-light-gray);
    border-radius: 3px;
}

.modal-content::-webkit-scrollbar-thumb {
    background: var(--color-gray-dark);
    border-radius: 3px;
}

.modal-small {
    max-width: 400px;
    text-align: center;
}

.modal-large {
    max-width: 900px;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.close-btn {
    position: absolute;
    top: 20px;
    right: 25px;
    font-size: 32px;
    color: var(--color-gray-dark);
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-light);
}

.close-btn:hover {
    color: var(--color-danger);
    background: #FFF5F5;
    transform: rotate(90deg);
}

/* 学生详情 */
.student-detail {
    text-align: center;
}

.pet-display {
    width: 150px;
    height: 150px;
    margin: 0 auto 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.pet-display .pet-emoji {
    width: 120px;
    height: 120px;
    font-size: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pet-display img {
    width: 120px;
    height: 120px;
    object-fit: contain;
}

.student-detail h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 20px;
}

/* 积分区域 */
.score-section {
    background: #f8f9fa;
    border-radius: 20px;
    padding: 25px;
    margin-bottom: 25px;
}

.current-score {
    margin-bottom: 20px;
}

.score-label {
    font-size: 16px;
    color: #666;
    margin-right: 10px;
}

.score-value {
    font-size: 42px;
    font-weight: 700;
    color: #667eea;
}

/* 加减分按钮 */
.score-controls {
    display: flex;
    gap: clamp(6px, 1vw, 10px);
    justify-content: center;
    flex-wrap: wrap;
}

.btn-score {
    width: clamp(50px, 8vw, 60px);
    height: clamp(50px, 8vw, 60px);
    border-radius: var(--radius-md);
    border: none;
    font-size: clamp(16px, 2vw, 20px);
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

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

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

.btn-score:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
}

.btn-score:active {
    transform: scale(0.95);
}

.btn-score:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
    z-index: 1;
}

/* 进度条 */
.progress-section {
    margin-bottom: 25px;
}

.stage-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 18px;
}

.stage-info span:first-child {
    font-weight: 700;
    color: #667eea;
}

.stage-info span:last-child {
    color: #999;
}

.arrow {
    color: #ccc;
}

.progress-bar {
    height: 20px;
    background: #e9ecef;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    border-radius: 10px;
    transition: width 0.5s ease;
}

.progress-text {
    color: #666;
    font-size: 14px;
}

/* 奖励区域 */
.rewards-section {
    margin-bottom: 25px;
}

.rewards-section h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.rewards-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.reward-item {
    background: #fff3cd;
    color: #856404;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
}

.no-rewards {
    color: #999;
    font-size: 14px;
}

/* 宠物互动区域 */
.pet-interaction-section {
    margin-bottom: 25px;
    background: #f0f7ff;
    border-radius: 20px;
    padding: 20px;
}

.pet-interaction-section h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.pet-status-bar {
    margin-bottom: 20px;
}

.status-bar-item {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
}

.status-label {
    width: 70px;
    font-size: 14px;
    color: #666;
}

.status-progress {
    flex: 1;
    height: 12px;
    background: #e9ecef;
    border-radius: 10px;
    overflow: hidden;
    margin: 0 10px;
}

.status-fill {
    height: 100%;
    transition: width 0.3s;
    border-radius: 10px;
}

.status-hunger {
    background: linear-gradient(90deg, #ff6b6b 0%, #ff8787 100%);
}

.status-happiness {
    background: linear-gradient(90deg, #ffd43b 0%, #ffe066 100%);
}

.status-energy {
    background: linear-gradient(90deg, #339af0 0%, #74c0fc 100%);
}

.status-value {
    width: 50px;
    text-align: right;
    font-size: 14px;
    font-weight: 600;
    color: #495057;
}

.pet-status-text {
    text-align: center;
    margin-bottom: 20px;
}

.status-badge {
    display: inline-block;
    padding: 8px 20px;
    background: white;
    border-radius: 20px;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.status-badge.urgent {
    background: #ffe3e3;
    color: #c92a2a;
}

.status-advice {
    font-size: 14px;
    color: #666;
}

.interaction-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.btn-interact {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 15px 10px;
    background: white;
    border: 2px solid transparent;
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-interact:hover {
    border-color: #667eea;
    background: #f8f9ff;
    transform: translateY(-3px);
}

.btn-interact:active {
    transform: translateY(-1px);
}

.btn-interact .emoji {
    font-size: 32px;
}

.btn-interact .label {
    font-size: 14px;
    font-weight: 600;
    color: #495057;
}

.btn-redeem {
    width: 100%;
    padding: 18px;
    font-size: 20px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    border: none;
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-redeem:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(245, 87, 108, 0.4);
}

/* 数字键盘 */
.password-input {
    margin: 30px 0;
}

.password-input input {
    width: 200px;
    height: 60px;
    font-size: 32px;
    text-align: center;
    border: 3px solid #ddd;
    border-radius: 15px;
    letter-spacing: 10px;
}

.password-input input:focus {
    outline: none;
    border-color: #667eea;
}

.numpad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    max-width: 300px;
    margin: 0 auto;
}

.numpad button {
    width: 80px;
    height: 80px;
    font-size: 28px;
    border: none;
    border-radius: 15px;
    background: #f8f9fa;
    cursor: pointer;
    transition: all 0.2s;
}

.numpad button:hover {
    background: #e9ecef;
}

.numpad button:active {
    transform: scale(0.95);
}

.numpad .btn-clear {
    background: #ff6b6b;
    color: white;
}

.numpad .btn-ok {
    background: #51cf66;
    color: white;
}

/* 庆祝弹窗 */
.celebration {
    background: rgba(0, 0, 0, 0.85);
}

.celebration-content {
    background: white;
    border-radius: 40px;
    padding: 60px;
    text-align: center;
    animation: celebrateIn 0.5s ease;
}

@keyframes celebrateIn {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.celebration-pet {
    width: 200px;
    height: 200px;
    margin: 0 auto 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 100px;
    animation: bounce 0.6s ease infinite alternate;
}

@keyframes bounce {
    from { transform: translateY(0); }
    to { transform: translateY(-20px); }
}

.celebration-title {
    font-size: 42px;
    color: #667eea;
    margin-bottom: 20px;
}

.celebration-text {
    font-size: 20px;
    color: #666;
    margin-bottom: 30px;
}

.btn-celebrate {
    padding: 18px 60px;
    font-size: 22px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 30px;
    cursor: pointer;
}

/* 管理面板 */
.admin-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    border-bottom: 2px solid #e9ecef;
    padding-bottom: 15px;
}

.tab-btn {
    padding: 12px 24px;
    font-size: 16px;
    border: none;
    background: transparent;
    color: #666;
    cursor: pointer;
    border-radius: 10px;
    transition: all 0.3s;
}

.tab-btn.active {
    background: #667eea;
    color: white;
}

.tab-content {
    min-height: 300px;
}

/* 响应式设计系统 - 现代化断点 */
@media (max-width: 1920px) {
    .pet-grid {
        grid-template-columns: repeat(8, minmax(110px, 1fr));
    }
}

/* 中等桌面 */
@media (max-width: 1440px) {
    .pet-grid {
        grid-template-columns: repeat(7, minmax(100px, 1fr));
    }
    
    .header {
        padding: 15px 30px;
    }
    
    .class-name {
        font-size: 28px;
    }
}

/* 小型桌面/平板横屏 */
@media (max-width: 1366px) {
    .pet-grid {
        grid-template-columns: repeat(6, minmax(90px, 1fr));
        grid-auto-rows: minmax(150px, 1fr);
    }
    
    .header {
        padding: 12px 25px;
        height: 70px;
    }
    
    .class-name {
        font-size: 26px;
    }
    
    .btn-teacher, .btn-style {
        padding: 10px 20px;
        font-size: 14px;
    }
}

/* 平板 */
@media (max-width: 1024px) {
    .pet-grid {
        grid-template-columns: repeat(5, minmax(85px, 1fr));
        grid-auto-rows: minmax(140px, 1fr);
        gap: 10px;
    }
    
    .header {
        padding: 10px 20px;
        height: 65px;
    }
    
    .class-name {
        font-size: 22px;
    }
    
    .modal-content {
        width: 95%;
        padding: 25px;
    }
    
    .pet-card {
        min-height: 130px;
    }
}

/* 大手机 */
@media (max-width: 768px) {
    .pet-grid {
        grid-template-columns: repeat(4, minmax(80px, 1fr));
        grid-auto-rows: minmax(130px, 1fr);
        gap: 8px;
        padding: calc(var(--header-height) + 10px) 10px 10px;
    }
    
    .header {
        padding: 8px 15px;
        height: 60px;
    }
    
    .class-name {
        font-size: 18px;
        max-width: 50%;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    .header-actions {
        gap: 8px;
    }
    
    .btn-teacher, .btn-style {
        padding: 8px 15px;
        font-size: 12px;
        min-width: auto;
    }
    
    .modal-content {
        border-radius: 20px;
        padding: 20px;
    }
    
    .pet-card {
        min-height: 120px;
        padding: 6px;
    }
    
    .score-controls {
        gap: 8px;
    }
    
    .btn-score {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}

/* 小手机 */
@media (max-width: 480px) {
    .pet-grid {
        grid-template-columns: repeat(4, minmax(70px, 1fr));
        grid-auto-rows: minmax(110px, 1fr);
        gap: 6px;
    }
    
    .header {
        flex-direction: column;
        height: auto;
        padding: 10px;
        gap: 10px;
    }
    
    .class-name {
        font-size: 16px;
        max-width: 100%;
        text-align: center;
    }
    
    .header-actions {
        width: 100%;
        justify-content: center;
    }
    
    .btn-teacher, .btn-style {
        padding: 6px 12px;
        font-size: 11px;
        flex: 1;
        max-width: 120px;
    }
    
    .pet-card {
        min-height: 100px;
    }
    
    .student-name {
        font-size: 9px;
    }
    
    .score-display {
        font-size: 12px;
    }
    
    .stage-badge {
        font-size: 8px;
        padding: 2px 6px;
    }
}

/* 触摸优化 */
@media (pointer: coarse) {
    .pet-card {
        min-height: 160px;
    }
    
    .btn-score {
        width: 70px;
        height: 70px;
    }
    
    .numpad button {
        width: 90px;
        height: 90px;
    }
}

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

.evolution-effect {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0;
}

.evolution-effect.active {
    animation: evolutionFlash 1s ease;
}

@keyframes evolutionFlash {
    0% { opacity: 0; }
    25% { opacity: 1; background: radial-gradient(circle, gold 0%, transparent 70%); }
    50% { opacity: 0; }
    75% { opacity: 1; background: radial-gradient(circle, #667eea 0%, transparent 70%); }
    100% { opacity: 0; }
}

/* 积分变化动画 */
.score-change {
    position: absolute;
    font-size: 24px;
    font-weight: 700;
    animation: scoreFloat 1s ease forwards;
    pointer-events: none;
}

.score-change.up {
    color: #51cf66;
}

.score-change.down {
    color: #ff6b6b;
}

@keyframes scoreFloat {
    0% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(-50px);
    }
}

/* 宠物风格选择 */
.pet-style-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.pet-style-option {
    background: white;
    border-radius: 15px;
    padding: 25px 15px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    border: 2px solid transparent;
}

.pet-style-option:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    border-color: #667eea;
}

.pet-style-option.selected {
    border: 3px solid #667eea;
    background: #f0f4ff;
}

.pet-style-option .style-preview {
    font-size: 50px;
    margin-bottom: 10px;
    display: block;
}

.pet-style-option .style-name {
    font-size: 16px;
    color: #333;
    font-weight: 600;
}

/* ===================================
   响应式优化 - 希沃大屏适配
   =================================== */

/* 超大屏 (2560px+) */
@media (min-width: 2560px) {
    .header {
        padding: 25px 60px;
    }

    .class-name {
        font-size: 40px;
    }

    .pet-grid {
        grid-template-columns: repeat(10, 1fr);
        gap: 20px;
        padding: 120px 60px 40px;
    }

    .pet-card {
        min-height: 200px;
        padding: 25px;
    }

    .pet-image {
        font-size: 70px;
    }

    .student-name {
        font-size: 18px;
    }

    .score-display {
        font-size: 24px;
    }
}

/* 大屏 (1920px - 2559px) */
@media (min-width: 1921px) and (max-width: 2559px) {
    .pet-grid {
        grid-template-columns: repeat(8, 1fr);
        gap: 18px;
        padding: 110px 50px 40px;
    }

    .pet-card {
        min-height: 190px;
    }

    .pet-image {
        font-size: 65px;
    }
}

/* 标准大屏 (1600px - 1919px) - 希沃86寸推荐 */
@media (min-width: 1600px) and (max-width: 1919px) {
    .pet-grid {
        grid-template-columns: repeat(7, 1fr);
        gap: 16px;
        padding: 100px 40px 40px;
    }

    .pet-card {
        min-height: 180px;
    }
}

/* 中大屏 (1366px - 1599px) */
@media (min-width: 1366px) and (max-width: 1599px) {
    .pet-grid {
        grid-template-columns: repeat(6, 1fr);
        gap: 14px;
        padding: 90px 30px 40px;
    }

    .pet-card {
        min-height: 170px;
    }
}

/* 普通屏 (1024px - 1365px) */
@media (min-width: 1024px) and (max-width: 1365px) {
    .header {
        padding: 15px 30px;
    }

    .pet-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 12px;
        padding: 80px 25px 40px;
    }

    .pet-card {
        min-height: 160px;
    }
}

/* 小屏 (768px - 1023px) */
@media (max-width: 1023px) {
    .header {
        padding: 12px 20px;
        height: 70px;
    }

    .class-name {
        font-size: 20px;
    }

    .header-actions {
        gap: 8px;
    }

    .btn-style, .btn-teacher {
        padding: 10px 20px;
        font-size: 14px;
    }

    .pet-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 10px;
        padding: 70px 20px 40px;
    }

    .pet-card {
        min-height: 140px;
        padding: 12px;
    }
}

/* 手机竖屏 (< 768px) */
@media (max-width: 767px) {
    .header {
        padding: 10px 15px;
        height: 60px;
    }

    .class-name {
        font-size: 18px;
    }

    .header-actions {
        gap: 6px;
    }

    .btn-style, .btn-teacher {
        padding: 8px 16px;
        font-size: 12px;
    }

    .pet-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
        padding: 60px 15px 30px;
    }

    .pet-card {
        min-height: 120px;
        padding: 10px;
    }

    .pet-image {
        font-size: 40px;
    }

    .student-name {
        font-size: 11px;
    }

    .score-display {
        font-size: 14px;
    }

    .stage-badge {
        font-size: 9px;
        padding: 3px 8px;
    }
}

/* 超小屏 (< 480px) */
@media (max-width: 479px) {
    .pet-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
    }

    .pet-card {
        min-height: 100px;
    }

    .pet-image {
        font-size: 35px;
    }

    .student-name {
        font-size: 10px;
    }

    .score-display {
        font-size: 12px;
    }
}

/* 横屏优化 */
@media (orientation: landscape) and (max-height: 600px) {
    .header {
        padding: 10px 30px;
    }

    .pet-grid {
        padding: 70px 30px 30px;
    }
}

/* 高屏比例优化 (希沃部分机型) */
@media (min-aspect-ratio: 16/9) and (max-aspect-ratio: 16/10) {
    .pet-grid {
        padding: 100px 50px 50px;
    }
}

/* 低屏比例优化 */
@media (max-aspect-ratio: 4/3) {
    .pet-grid {
        padding: 80px 40px 40px;
    }
}

/* 触摸设备优化 - 增大点击区域 */
@media (pointer: coarse) {
    .pet-card {
        min-height: clamp(150px, 18vw, 190px);
        padding: clamp(12px, 2.5vw, 20px);
    }

    .pet-image-container {
        width: clamp(70px, 9vw, 85px);
        height: clamp(70px, 9vw, 85px);
    }

    .pet-image {
        font-size: clamp(45px, 7vw, 65px);
    }

    .btn-score {
        width: clamp(60px, 8vw, 75px);
        height: clamp(60px, 8vw, 75px);
        font-size: clamp(18px, 2.5vw, 24px);
    }

    .btn-teacher, .btn-style {
        padding: 14px 32px;
        font-size: clamp(15px, 2vw, 18px);
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    .pet-card {
        border: 3px solid #000;
    }

    .score-display {
        background: #000;
        -webkit-text-fill-color: #fff;
        text-fill-color: #fff;
    }

    .stage-badge {
        border: 2px solid #000;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --color-white: #2c2c2c;
        --color-light: #3a3a3a;
        --color-gray: #4a4a4a;
        --color-gray-dark: #6a6a6a;
        --color-dark: #e0e0e0;
        --color-darker: #f0f0f0;
        --color-black: #ffffff;
    }

    body {
        background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    }

    .header {
        background: rgba(44, 44, 44, 0.98);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .pet-card {
        background: var(--color-light);
    }

    .modal {
        background: rgba(0, 0, 0, 0.8);
    }

    .modal-content {
        background: var(--color-light);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .pet-card {
        animation: none;
    }

    body::before {
        animation: none;
    }
}

/* 打印样式 */
@media print {
    .header,
    .btn-teacher,
    .btn-style,
    .modal,
    .interaction-buttons {
        display: none !important;
    }

    .pet-grid {
        padding: 20px;
        gap: 15px;
    }

    .pet-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }

    body {
        background: white;
    }
}