/* 量子冒险课程样式 */

:root {
    --primary-color: #6a11cb;
    --secondary-color: #2575fc;
    --accent-color: #ff9a44;
    --success-color: #4caf50;
    --warning-color: #ff9800;
    --danger-color: #f44336;
    --text-color: #333;
    --light-text: #fff;
    --bg-color: #f9f9f9;
    --card-bg: #fff;
    --border-radius: 12px;
    --box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* 全局样式 */
body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hidden {
    display: none;
}

/* 标题样式 */
.adventure-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 2rem;
    text-align: center;
    color: white;
    position: relative;
}

.header-content {
    margin-bottom: 1rem;
}

.adventure-nav {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.home-button {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: background-color 0.3s ease;
}

.home-button:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

.adventure-title {
    font-size: 3rem;
    margin: 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.adventure-subtitle {
    font-size: 1.5rem;
    margin: 0.5rem 0;
    opacity: 0.9;
}

/* 欢迎部分 */
.welcome-section {
    padding: 3rem 0;
}

.welcome-content {
    display: flex;
    align-items: center;
    gap: 2rem;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
}

.welcome-image {
    flex: 1;
    text-align: center;
}

.wizard-image {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
}

.welcome-text {
    flex: 1;
}

.welcome-text h2 {
    color: var(--primary-color);
    margin-top: 0;
}

.learning-points {
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.learning-points li {
    margin-bottom: 0.5rem;
    position: relative;
}

.learning-points li::before {
    content: "✨";
    margin-right: 0.5rem;
}

/* 关卡部分 */
.level-section {
    padding: 3rem 0;
}

.level-header {
    margin-bottom: 2rem;
}

.level-header h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.level-progress {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.progress-bar {
    flex: 1;
    height: 20px;
    background-color: #e0e0e0;
    border-radius: 10px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.5s ease;
}

.progress-text {
    font-weight: bold;
    min-width: 50px;
}

.level-content {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
    margin-bottom: 2rem;
}

.level-intro h3, .level-challenge h3 {
    color: var(--primary-color);
    margin-top: 0;
}

.interactive-element {
    margin: 2rem 0;
    padding: 1.5rem;
    background-color: #f5f5f5;
    border-radius: var(--border-radius);
    border: 2px dashed var(--primary-color);
}

/* 第一关：量子比特 */
.classical-bit, .quantum-bit {
    display: inline-block;
    width: 45%;
    text-align: center;
    margin: 0 2.5%;
    vertical-align: top;
}

.bit-display, .qubit-display {
    margin: 1rem 0;
    padding: 1rem;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.bit-state {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.qubit-sphere {
    width: 150px;
    height: 150px;
    margin: 0 auto;
    background: radial-gradient(circle at 30% 30%, #e0e0e0, #f5f5f5);
    border-radius: 50%;
    position: relative;
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.2);
}

.qubit-state-point {
    width: 20px;
    height: 20px;
    background-color: var(--accent-color);
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 10px var(--accent-color);
    transition: var(--transition);
}

.flip-bit, .rotate-qubit {
    background-color: var(--primary-color);
    color: var(--light-text);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
}

.flip-bit:hover, .rotate-qubit:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

/* 第二关：量子叠加 */
.superposition-demo {
    text-align: center;
}

.superposition-visualization {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 1.5rem 0;
}

.qubit-states {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.state-0, .state-1 {
    padding: 0.5rem 1rem;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    font-weight: bold;
}

.superposition-arrow {
    font-size: 2rem;
    margin: 0 1rem;
    color: var(--primary-color);
}

.superposition-state {
    padding: 0.5rem 1rem;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    font-weight: bold;
    color: var(--primary-color);
}

.superposition-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.apply-hadamard, .measure-qubit {
    background-color: var(--primary-color);
    color: var(--light-text);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
}

.apply-hadamard:hover, .measure-qubit:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

/* 第三关：量子纠缠 */
.entanglement-demo {
    text-align: center;
}

.entangled-qubits {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 2rem 0;
}

.qubit-container {
    text-align: center;
}

.qubit-label {
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.entanglement-line {
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 0 1rem;
    position: relative;
}

.entanglement-line::before {
    content: "";
    position: absolute;
    top: -8px;
    left: 0;
    width: 100%;
    height: 20px;
    background: repeating-linear-gradient(
        90deg,
        transparent,
        transparent 10px,
        var(--primary-color) 10px,
        var(--primary-color) 20px
    );
    opacity: 0.5;
}

.entanglement-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.create-entanglement, .measure-qubit-a, .measure-qubit-b {
    background-color: var(--primary-color);
    color: var(--light-text);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
}

.create-entanglement:hover, .measure-qubit-a:hover, .measure-qubit-b:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

/* 第四关：量子计算机 */
.quantum-computer-demo {
    text-align: center;
}

.search-problem {
    margin: 1.5rem 0;
    padding: 1rem;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.boxes-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0;
}

.box {
    width: 80px;
    height: 80px;
    background-color: var(--card-bg);
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.box:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow);
}

.box.opened {
    background-color: var(--accent-color);
    color: var(--light-text);
}

.box.treasure {
    background-color: var(--success-color);
    color: var(--light-text);
}

.search-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.classical-search, .quantum-search {
    background-color: var(--primary-color);
    color: var(--light-text);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
}

.classical-search:hover, .quantum-search:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

/* 挑战完成按钮 */
.challenge-completion {
    text-align: center;
    margin-top: 2rem;
}

.complete-btn {
    background-color: var(--success-color);
    color: var(--light-text);
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.1rem;
    font-weight: bold;
}

.complete-btn:hover {
    background-color: #3d8b40;
    transform: translateY(-2px);
}

/* 关卡导航 */
.level-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 2rem;
}

.prev-level-btn, .next-level-btn {
    background-color: var(--primary-color);
    color: var(--light-text);
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.1rem;
    font-weight: bold;
}

.prev-level-btn:hover, .next-level-btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.next-level-btn:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
    transform: none;
}

/* 完成部分 */
.completion-section {
    padding: 3rem 0;
}

.completion-content {
    text-align: center;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
}

.completion-content h2 {
    color: var(--primary-color);
    margin-top: 0;
}

.completion-image {
    margin: 2rem 0;
}

.achievements-list {
    display: inline-block;
    text-align: left;
    margin: 1.5rem 0;
}

.achievements-list li {
    margin-bottom: 0.5rem;
    position: relative;
}

.achievements-list li::before {
    content: "🏆";
    margin-right: 0.5rem;
}

.completion-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.adventure-btn, .advanced-btn {
    background-color: var(--primary-color);
    color: var(--light-text);
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.1rem;
    font-weight: bold;
}

.adventure-btn:hover, .advanced-btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.advanced-btn {
    background-color: var(--accent-color);
}

.advanced-btn:hover {
    background-color: #e68a3d;
}

/* 页脚 */
.adventure-footer {
    background-color: var(--primary-color);
    color: var(--light-text);
    padding: 1.5rem 0;
    text-align: center;
    margin-top: 3rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .welcome-content {
        flex-direction: column;
    }
    
    .classical-bit, .quantum-bit {
        width: 100%;
        margin: 1rem 0;
    }
    
    .superposition-visualization {
        flex-direction: column;
    }
    
    .superposition-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }
    
    .entangled-qubits {
        flex-direction: column;
    }
    
    .entanglement-line {
        width: 4px;
        height: 50px;
        margin: 1rem 0;
    }
    
    .entanglement-line::before {
        width: 20px;
        height: 100%;
        left: -8px;
        top: 0;
        background: repeating-linear-gradient(
            0deg,
            transparent,
            transparent 10px,
            var(--primary-color) 10px,
            var(--primary-color) 20px
        );
    }
    
    .completion-actions {
        flex-direction: column;
    }
}

/* 量子拼图部分 */
.puzzle-section {
    padding: 3rem 0;
}

.puzzle-demo {
    text-align: center;
    margin: 2rem 0;
}

.puzzle-instructions {
    margin: 1.5rem 0;
    padding: 1rem;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.puzzle-board {
    display: inline-block;
    margin: 2rem 0;
    border: 3px solid var(--primary-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.puzzle-row {
    display: flex;
}

.puzzle-cell {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    background-color: var(--card-bg);
    border: 1px solid var(--primary-color);
    transition: var(--transition);
}

.puzzle-cell.highlight {
    background-color: rgba(106, 17, 203, 0.1);
    border: 2px dashed var(--primary-color);
}

.puzzle-cell.correct {
    background-color: var(--success-color);
    color: var(--light-text);
}

.puzzle-cell.incorrect {
    background-color: var(--danger-color);
    color: var(--light-text);
}

.puzzle-pieces {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
}

.puzzle-piece {
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary-color);
    color: var(--light-text);
    border-radius: var(--border-radius);
    cursor: move;
    transition: var(--transition);
    font-weight: bold;
    box-shadow: var(--box-shadow);
}

.puzzle-piece:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}

.puzzle-piece.dragging {
    opacity: 0.5;
    transform: scale(0.95);
}

.puzzle-piece.placed {
    background-color: var(--secondary-color);
}

.puzzle-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem;
}

.check-puzzle, .reset-puzzle {
    background-color: var(--primary-color);
    color: var(--light-text);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
}

.check-puzzle:hover, .reset-puzzle:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.reset-puzzle {
    background-color: var(--warning-color);
}

.reset-puzzle:hover {
    background-color: #e68a00;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .puzzle-board {
        transform: scale(0.8);
    }
    
    .puzzle-pieces {
        flex-direction: column;
        align-items: center;
    }
    
    .puzzle-piece {
        width: 100%;
        max-width: 200px;
    }
}

/* 第二关：量子叠加 */
.analogy-box {
    background-color: rgba(106, 17, 203, 0.1);
    border-left: 4px solid var(--primary-color);
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.quantum-coin-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 2rem 0;
    padding: 1.5rem;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.coin-visualization {
    margin-bottom: 1.5rem;
    text-align: center;
}

.coin {
    width: 150px;
    height: 150px;
    position: relative;
    margin: 0 auto 1rem;
    transform-style: preserve-3d;
    transition: transform 1s ease;
}

.coin.flipping {
    animation: flip-coin 1s ease;
}

@keyframes flip-coin {
    0% { transform: rotateY(0); }
    100% { transform: rotateY(720deg); }
}

.coin-face {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: bold;
    color: white;
    backface-visibility: hidden;
}

.coin-face.front {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transform: translateZ(75px);
}

.coin-face.back {
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    transform: rotateY(180deg) translateZ(75px);
}

.coin-state {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-top: 1rem;
}

.coin-controls {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.flip-coin, .apply-hadamard, .measure-qubit {
    padding: 0.8rem 1.2rem;
    border: none;
    border-radius: var(--border-radius);
    background-color: var(--primary-color);
    color: white;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.flip-coin:hover, .apply-hadamard:hover, .measure-qubit:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.apply-hadamard {
    background-color: var(--accent-color);
}

.measure-qubit {
    background-color: var(--success-color);
}

.superposition-explanation {
    margin: 2rem 0;
    padding: 1.5rem;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.explanation-step {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px dashed rgba(106, 17, 203, 0.2);
}

.explanation-step:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.explanation-step h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.visualization-title {
    text-align: center;
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.bloch-sphere-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 1.5rem 0;
}

.bloch-sphere {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #e0e0e0, #f5f5f5);
    position: relative;
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.2);
    border: 2px solid var(--primary-color);
}

.state-point {
    width: 20px;
    height: 20px;
    background-color: var(--accent-color);
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 10px var(--accent-color);
    transition: all 0.5s ease;
}

.state-labels {
    display: flex;
    justify-content: space-between;
    width: 220px;
    margin-top: 0.5rem;
}

.label {
    font-weight: bold;
    color: var(--primary-color);
}

.state-description {
    text-align: center;
    margin-top: 1rem;
    font-style: italic;
    color: var(--text-color);
}

.challenge-task {
    background-color: rgba(106, 17, 203, 0.1);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
}

.challenge-task h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.challenge-task ol {
    padding-left: 1.5rem;
}

.challenge-task li {
    margin-bottom: 0.5rem;
}

.donate-btn {
    background: linear-gradient(45deg, #ff6b6b, #ff8e8e);
    color: white;
    padding: 10px 20px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: bold;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-left: 15px;
}

.donate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
}