/* 基础样式和变量 - 现代高级配色 */
:root {
    --primary-gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    --accent-gradient: linear-gradient(135deg, #e94560 0%, #ff6b6b 100%);
    --card-gradient: linear-gradient(145deg, rgba(255,255,255,0.98) 0%, rgba(248,250,252,0.95) 100%);
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --text-primary: #1a1a2e;
    --text-secondary: #4a5568;
    --accent-pink: #e94560;
    --accent-coral: #ff6b6b;
    --accent-teal: #00d9ff;
    --accent-purple: #6c5ce7;
    --shadow-soft: 0 10px 40px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 20px 60px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 40px rgba(233, 69, 96, 0.3);
    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 12px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: var(--primary-gradient);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

/* 背景装饰 */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(233, 69, 96, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 217, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(108, 92, 231, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 24px;
}

/* 头部样式 - 玻璃态设计 */
.header {
    text-align: center;
    padding: 50px 20px;
    position: relative;
}

.header h1 {
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #fff 0%, #f0f0f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    letter-spacing: -1px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.header .subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 400;
    letter-spacing: 0.5px;
}

/* 模式选择器 - 胶囊式玻璃态 */
.mode-selector {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin: 40px 0;
    flex-wrap: wrap;
    padding: 8px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-radius: 50px;
    border: 1px solid var(--glass-border);
    max-width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.mode-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    font-size: 1rem;
    border: none;
    border-radius: 40px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: transparent;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 600;
    letter-spacing: 0.3px;
}

.mode-btn:hover {
    color: #fff;
    transform: translateY(-2px);
}

.mode-btn.active {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.mode-btn .icon {
    font-size: 1.4rem;
}

/* 主内容区 - 悬浮卡片 */
.main-content {
    background: var(--card-gradient);
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-medium);
    margin-top: 20px;
    backdrop-filter: blur(10px);
}

@media (max-width: 768px) {
    .main-content {
        padding: 32px 24px;
    }
}

/* 介绍区域 */
.intro-section {
    margin-bottom: 40px;
}

.intro-card {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: var(--radius-md);
    padding: 32px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.intro-card h2 {
    font-size: 2rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    font-weight: 700;
}

.intro-card p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* 实验区域 */
.lab-section {
    margin: 50px 0;
}

.lab-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

@media (max-width: 900px) {
    .lab-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* 颜色控制滑块 - 现代设计 */
.color-controls {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.color-slider-group {
    display: flex;
    align-items: center;
    gap: 20px;
}

.color-label {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 110px;
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--text-primary);
}

.color-dot {
    width: 24px;
    height: 24px;
    border-radius: 8px;
    display: inline-block;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.color-dot.red { background: linear-gradient(135deg, #ff4757, #ff6b7a); }
.color-dot.green { background: linear-gradient(135deg, #2ed573, #7bed9f); }
.color-dot.blue { background: linear-gradient(135deg, #3742fa, #70a1ff); }
.color-dot.cyan { background: linear-gradient(135deg, #00d2d3, #7efff5); }
.color-dot.magenta { background: linear-gradient(135deg, #ff6b9d, #ff9ff3); }
.color-dot.yellow { background: linear-gradient(135deg, #ffa502, #ffeaa7); }

.color-slider {
    flex: 1;
    height: 12px;
    border-radius: 6px;
    appearance: none;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #e2e8f0;
}

.color-slider:focus {
    outline: none;
}

.color-slider::-webkit-slider-thumb {
    appearance: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.2s ease;
    border: 3px solid #fff;
}

.color-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.color-slider::-moz-range-thumb {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    border: 3px solid #fff;
}

.color-slider[data-color="red"] {
    background: linear-gradient(to right, #e2e8f0, #ff4757);
}

.color-slider[data-color="green"] {
    background: linear-gradient(to right, #e2e8f0, #2ed573);
}

.color-slider[data-color="blue"] {
    background: linear-gradient(to right, #e2e8f0, #3742fa);
}

.slider-value {
    min-width: 55px;
    text-align: center;
    font-weight: 700;
    font-size: 1rem;
    color: var(--accent-purple);
    background: linear-gradient(135deg, #f0f0ff, #e0e0ff);
    padding: 6px 12px;
    border-radius: 8px;
}

/* 混合显示区域 - 玻璃态球体 */
.mixing-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.mixing-circle {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: #000;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.4),
        inset 0 -15px 40px rgba(0, 0, 0, 0.3),
        inset 0 15px 40px rgba(255, 255, 255, 0.15),
        0 0 60px rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.mixing-circle::before {
    content: '';
    position: absolute;
    top: 12%;
    left: 18%;
    width: 35%;
    height: 22%;
    background: radial-gradient(ellipse, rgba(255, 255, 255, 0.4) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(8px);
}

.mixing-circle::after {
    content: '';
    position: absolute;
    bottom: 15%;
    right: 15%;
    width: 25%;
    height: 15%;
    background: radial-gradient(ellipse, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(5px);
}

.overlay-text {
    color: white;
    font-size: 1.6rem;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    z-index: 1;
    text-align: center;
    padding: 12px 20px;
    letter-spacing: 0.5px;
}

.mixing-result {
    font-size: 1.15rem;
    color: var(--text-secondary);
    text-align: center;
    min-height: 50px;
    line-height: 1.6;
    font-weight: 500;
}

/* 生活物品匹配显示 */
.real-world-match {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 28px;
    background: linear-gradient(135deg, #fff9e6, #fff3cd);
    border-radius: 20px;
    border: 2px solid rgba(255, 193, 7, 0.3);
    box-shadow: 0 8px 25px rgba(255, 193, 7, 0.15);
    max-width: 400px;
    width: 100%;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    animation: matchPulse 2s ease-in-out infinite;
}

@keyframes matchPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.real-world-match:hover {
    transform: scale(1.03);
    box-shadow: 0 12px 35px rgba(255, 193, 7, 0.25);
}

.match-emoji {
    font-size: 5rem;
    line-height: 1;
    filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.15));
    transition: transform 0.3s ease;
}

.real-world-match:hover .match-emoji {
    transform: scale(1.15) rotate(10deg);
}

.match-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
}

.match-description {
    font-size: 1rem;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.6;
    max-width: 90%;
}

/* 预设按钮区域 */
.preset-section {
    margin: 50px 0;
}

.preset-section h3 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 28px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.preset-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.preset-btn {
    padding: 14px 28px;
    border: none;
    border-radius: 30px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: white;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.preset-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

.preset-btn:hover::before {
    left: 100%;
}

.preset-btn:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* 颜色轮区域 */
.color-wheel-section {
    margin: 50px 0;
    text-align: center;
    padding: 40px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: var(--radius-md);
}

.color-wheel-section h3 {
    font-size: 1.5rem;
    margin-bottom: 32px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.color-wheel-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 50px;
    flex-wrap: wrap;
}

#color-wheel {
    max-width: 280px;
    border-radius: 50%;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    background: #fff;
}

.color-wheel-legend {
    display: flex;
    flex-direction: column;
    gap: 12px;
    text-align: left;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 18px;
    background: #fff;
    border-radius: 12px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.legend-item:hover {
    transform: translateX(8px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.legend-color {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.legend-text {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

.legend-formula {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 知识卡片 - 现代卡片设计 */
.knowledge-section {
    margin: 50px 0;
}

.knowledge-section h3 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 32px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.knowledge-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.knowledge-card {
    background: linear-gradient(145deg, #fff 0%, #f8fafc 100%);
    border-radius: var(--radius-md);
    padding: 28px;
    border: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.knowledge-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent-gradient);
    transition: width 0.3s ease;
}

.knowledge-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.knowledge-card:hover::before {
    width: 6px;
}

.knowledge-card .icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    display: block;
}

.knowledge-card h4 {
    color: var(--text-primary);
    margin-bottom: 12px;
    font-size: 1.25rem;
    font-weight: 700;
}

.knowledge-card p {
    color: var(--text-secondary);
    line-height: 1.9;
    font-size: 1rem;
}

/* 测验区域 - 渐变背景 */
.quiz-section {
    margin: 50px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-md);
    padding: 40px;
    position: relative;
    overflow: hidden;
}

.quiz-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.quiz-section h3 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 32px;
    color: #fff;
    font-weight: 700;
    position: relative;
    z-index: 1;
}

.quiz-container {
    max-width: 650px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.quiz-question {
    font-size: 1.35rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 30px;
    color: #fff;
    line-height: 1.6;
}

.quiz-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.quiz-option {
    padding: 22px 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 16px;
    cursor: pointer;
    text-align: center;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: #fff;
    font-size: 1rem;
}

.quiz-option:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}

.quiz-option.correct {
    background: #00b894;
    border-color: #00b894;
    transform: scale(1.05);
}

.quiz-option.wrong {
    background: #d63031;
    border-color: #d63031;
}

.quiz-option.disabled {
    pointer-events: none;
    opacity: 0.7;
}

.quiz-feedback {
    text-align: center;
    font-size: 1.15rem;
    font-weight: 600;
    padding: 18px;
    border-radius: 14px;
    margin-bottom: 24px;
    display: none;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.quiz-feedback.show {
    display: block;
    animation: slideUp 0.4s ease;
}

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

.quiz-feedback.correct {
    background: rgba(0, 184, 148, 0.3);
    border: 2px solid rgba(0, 184, 148, 0.5);
}

.quiz-feedback.wrong {
    background: rgba(214, 48, 49, 0.3);
    border: 2px solid rgba(214, 48, 49, 0.5);
}

.quiz-next-btn {
    display: block;
    margin: 0 auto;
    padding: 14px 48px;
    font-size: 1.1rem;
    background: #fff;
    color: var(--accent-purple);
    border: none;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.quiz-next-btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

.quiz-next-btn.hidden {
    display: none;
}

.quiz-score {
    text-align: center;
    font-size: 1.2rem;
    font-weight: 600;
    color: #fff;
    margin-top: 24px;
    padding: 18px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 14px;
    backdrop-filter: blur(10px);
}

/* 页脚 */
.footer {
    text-align: center;
    padding: 40px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.1rem;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.4);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2.2rem;
    }
    
    .mode-btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
    
    .mixing-circle {
        width: 200px;
        height: 200px;
    }
    
    .color-slider-group {
        flex-wrap: wrap;
    }
    
    .color-label {
        min-width: 90px;
    }
    
    .main-content {
        padding: 32px 20px;
    }
    
    .knowledge-cards {
        grid-template-columns: 1fr;
    }
}

/* 自定义混合控制 - 三种颜色 */
.custom-controls {
    display: none;
}

.custom-controls.hidden {
    display: none;
}

.custom-controls:not(.hidden) {
    display: block;
}

.standard-controls.hidden {
    display: none;
}

.custom-mix-container {
    display: flex;
    flex-direction: column;
    gap: 28px;
    padding: 40px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: var(--radius-md);
}

.custom-title {
    text-align: center;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
}

/* 颜色数量选择器 */
.color-count-selector {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
    padding: 8px;
    background: linear-gradient(135deg, #e8ebff, #f0f2ff);
    border-radius: 16px;
}

.color-count-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    background: #fff;
    color: var(--text-secondary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.color-count-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
}

.color-count-btn.active {
    background: linear-gradient(135deg, #6c5ce7, #a29bfe);
    color: #fff;
    border-color: #6c5ce7;
    box-shadow: 0 4px 15px rgba(108, 92, 231, 0.3);
}

.count-icon {
    font-size: 1.3rem;
}

.color-picker-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: center;
    padding: 24px;
    background: #fff;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.color-picker-group:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.color-picker-row {
    width: 100%;
    display: flex;
    justify-content: center;
}

.custom-label {
    display: flex;
    align-items: center;
    gap: 20px;
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, #f8f9ff, #f0f2ff);
    transition: all 0.3s ease;
}

.custom-label:hover {
    background: linear-gradient(135deg, #e8ebff, #e0e4ff);
    transform: scale(1.02);
}

.color-label-text {
    font-size: 1.3rem;
    font-weight: 700;
    min-width: 80px;
}

.color-a-label .color-label-text { color: #e74c3c; }
.color-b-label .color-label-text { color: #3498db; }
.color-c-label .color-label-text { color: #27ae60; }

/* 大型颜色选择器 - 便于点击 */
.color-picker-large {
    width: 80px;
    height: 70px;
    border: none;
    border-radius: 16px;
    cursor: pointer;
    background: transparent;
    padding: 0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    -webkit-appearance: none;
}

.color-picker-large::-webkit-color-swatch-wrapper {
    padding: 0;
    border-radius: 16px;
}

.color-picker-large::-webkit-color-swatch {
    border: 4px solid rgba(0, 0, 0, 0.15);
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.color-picker-large::-moz-color-swatch {
    border: 4px solid rgba(0, 0, 0, 0.15);
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.color-picker-large:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.color-picker-large:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.3);
}

.hex-display {
    font-family: 'SF Mono', 'Monaco', monospace;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    background: #fff;
    padding: 8px 16px;
    border-radius: 8px;
    border: 2px solid #e2e8f0;
    min-width: 90px;
    text-align: center;
}

.mix-ratio-control {
    display: flex;
    align-items: center;
    gap: 16px;
    width: 100%;
    max-width: 400px;
}

.ratio-label {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-secondary);
    min-width: 50px;
}

.ratio-slider {
    flex: 1;
    height: 14px;
    border-radius: 7px;
    appearance: none;
    cursor: pointer;
    background: linear-gradient(to right, #e2e8f0, #6c5ce7);
    transition: all 0.3s ease;
}

.ratio-slider::-webkit-slider-thumb {
    appearance: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.25);
    transition: all 0.2s ease;
    border: 3px solid #6c5ce7;
}

.ratio-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 6px 20px rgba(108, 92, 231, 0.4);
}

.ratio-slider::-moz-range-thumb {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #fff;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.25);
    border: 3px solid #6c5ce7;
}

.ratio-value {
    min-width: 65px;
    text-align: center;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--accent-purple);
    background: linear-gradient(135deg, #f0f0ff, #e0e0ff);
    padding: 10px 16px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.color-preview-large {
    width: 120px;
    height: 100px;
    border-radius: 20px;
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.2);
    border: 4px solid rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.color-preview-large:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

/* 混合公式显示 */
.mix-formula {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 20px;
    background: linear-gradient(135deg, #fff, #f8f9ff);
    border-radius: var(--radius-sm);
    flex-wrap: wrap;
}

.formula-text {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.formula-colors {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.3rem;
    font-weight: 700;
}

.formula-color-dot {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
    border: 2px solid rgba(0, 0, 0, 0.1);
}

.formula-arrow {
    font-size: 1.5rem;
    color: var(--accent-purple);
    font-weight: 700;
}

.formula-result {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.25);
    border: 3px solid rgba(0, 0, 0, 0.15);
    transition: background 0.3s ease;
}

.blend-mode-selector {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    padding-top: 20px;
    border-top: 2px solid rgba(108, 92, 231, 0.2);
}

.blend-mode-selector span {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.blend-select {
    padding: 14px 28px;
    font-size: 1.1rem;
    font-weight: 600;
    border: 2px solid #e2e8f0;
    border-radius: 14px;
    background: #fff;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.3s ease;
    outline: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.blend-select:hover {
    border-color: var(--accent-purple);
    box-shadow: 0 4px 15px rgba(108, 92, 231, 0.2);
}

.blend-select:focus {
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 4px rgba(108, 92, 231, 0.15);
}

/* 自定义结果信息 */
.custom-result-info {
    display: none;
}

.custom-result-info.hidden {
    display: none;
}

.custom-result-info:not(.hidden) {
    display: block;
}

.result-formula {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    padding: 16px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    margin-bottom: 12px;
}

.color-values {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.color-value-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.color-value-item .hex-value {
    font-family: 'SF Mono', 'Monaco', monospace;
    background: rgba(0, 0, 0, 0.05);
    padding: 4px 10px;
    border-radius: 6px;
}

/* 隐藏/显示工具类 */
.hidden {
    display: none !important;
}

/* 打印样式 */
@media print {
    .mode-selector,
    .preset-section,
    .quiz-section {
        display: none;
    }
    
    body {
        background: white;
    }
    
    .main-content {
        box-shadow: none;
    }
}