/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

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

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo h2 {
    color: #ff6b6b;
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.language-switcher {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.lang-btn {
    background: transparent;
    border: 2px solid #e9ecef;
    color: #333;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
}

.lang-btn:hover,
.lang-btn.active {
    background: linear-gradient(135deg, #ff6b6b, #ffa500);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    background: linear-gradient(135deg, #ff6b6b, #ffa500);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

/* 主横幅 */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 80px;
    display: flex;
    align-items: center;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.1)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    flex: 1;
    z-index: 2;
    position: relative;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    background: linear-gradient(135deg, #ff6b6b, #ffa500);
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.4);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
    position: relative;
}

.food-showcase {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    animation: float 6s ease-in-out infinite;
}

.food-item {
    font-size: 3rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    padding: 1rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.food-item:hover {
    transform: scale(1.1) rotate(5deg);
    background: rgba(255, 255, 255, 0.3);
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* 页面标题 */
.page-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0 60px;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 营养板块 */
.nutrition-section {
    padding: 60px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #333;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 3rem;
}

.nutrition-calculator {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.food-selector {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.food-selector h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.food-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.category-btn {
    background: white;
    border: 2px solid #e9ecef;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.category-btn:hover,
.category-btn.active {
    background: linear-gradient(135deg, #ff6b6b, #ffa500);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
}

.food-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 0.8rem;
    max-height: 400px;
    overflow-y: auto;
}

.food-card {
    background: white;
    border-radius: 12px;
    padding: 0.8rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.food-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: #ff6b6b;
}

.food-card.selected {
    background: linear-gradient(135deg, #ff6b6b, #ffa500);
    color: white;
    transform: scale(1.05);
}

.food-card .emoji {
    font-size: 1.5rem;
    margin-bottom: 0.4rem;
}

.food-card .name {
    font-size: 0.8rem;
    font-weight: 500;
}

.nutrition-results {
    background: white;
    padding: 1.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.nutrition-results h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.selected-foods {
    margin-bottom: 1.5rem;
    min-height: 80px;
}

.selected-food-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f8f9fa;
    padding: 0.5rem 1rem;
    border-radius: 10px;
    margin-bottom: 0.5rem;
}

.remove-btn {
    background: #ff6b6b;
    color: white;
    border: none;
    border-radius: 50%;
    width: 25px;
    height: 25px;
    cursor: pointer;
    font-size: 0.8rem;
}

.nutrition-chart {
    margin-bottom: 1.5rem;
}

.nutrition-item {
    display: flex;
    align-items: center;
    margin-bottom: 0.8rem;
    gap: 1rem;
}

.nutrition-label {
    min-width: 120px;
    font-weight: 500;
}

.nutrition-bar {
    flex: 1;
    height: 8px;
    background: #e9ecef;
    border-radius: 4px;
    overflow: hidden;
}

.nutrition-fill {
    height: 100%;
    background: linear-gradient(135deg, #ff6b6b, #ffa500);
    border-radius: 4px;
    transition: width 0.5s ease;
}

.nutrition-value {
    min-width: 50px;
    font-weight: 600;
    color: #ff6b6b;
}

.nutrition-summary {
    background: #f8f9fa;
    padding: 1.2rem;
    border-radius: 15px;
}

.nutrition-summary h4 {
    margin-bottom: 0.8rem;
    color: #333;
}

.advice-text {
    color: #666;
    line-height: 1.6;
}

/* 特色推荐 */
.features-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

/* 搜索和筛选 */
.search-section {
    background: white;
    padding: 2rem 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.search-container {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.search-input {
    flex: 1;
    padding: 1rem;
    border: 2px solid #e9ecef;
    border-radius: 25px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.search-input:focus {
    outline: none;
    border-color: #ff6b6b;
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1);
}

.search-btn {
    background: linear-gradient(135deg, #ff6b6b, #ffa500);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 25px;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.search-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.filter-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-group label {
    font-weight: 500;
    color: #333;
}

.filter-btn {
    background: white;
    border: 2px solid #e9ecef;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.filter-btn:hover,
.filter-btn.active {
    background: linear-gradient(135deg, #ff6b6b, #ffa500);
    color: white;
    border-color: transparent;
}

.sort-select {
    padding: 0.5rem 1rem;
    border: 2px solid #e9ecef;
    border-radius: 20px;
    background: white;
    cursor: pointer;
}

/* 食物展示 */
.foods-section {
    padding: 3rem 0;
    background: #f8f9fa;
}

.foods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.food-item-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.food-item-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.food-item-header {
    background: linear-gradient(135deg, #ff6b6b, #ffa500);
    color: white;
    padding: 1rem;
    text-align: center;
}

.food-item-emoji {
    font-size: 2rem;
    margin-bottom: 0.4rem;
}

.food-item-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
}

.food-item-category {
    font-size: 0.8rem;
    opacity: 0.8;
}

.food-item-body {
    padding: 1rem;
}

.nutrition-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.8rem;
    margin-bottom: 0.8rem;
}

.nutrition-stat {
    text-align: center;
    padding: 0.4rem;
    background: #f8f9fa;
    border-radius: 8px;
}

.nutrition-stat-value {
    font-size: 0.9rem;
    font-weight: 600;
    color: #ff6b6b;
}

.nutrition-stat-label {
    font-size: 0.7rem;
    color: #666;
}

.food-item-description {
    color: #666;
    font-size: 0.8rem;
    line-height: 1.4;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.page-btn {
    background: white;
    border: 2px solid #e9ecef;
    padding: 0.5rem 1rem;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.page-btn:hover,
.page-btn.active {
    background: linear-gradient(135deg, #ff6b6b, #ffa500);
    color: white;
    border-color: transparent;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 20px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 2rem;
    cursor: pointer;
    color: #666;
    transition: color 0.3s ease;
}

.close:hover {
    color: #ff6b6b;
}

/* 游戏样式 */
.game-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 60px;
    text-align: center;
}

.game-controls {
    background: white;
    padding: 2rem 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.game-info {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.score-board {
    display: flex;
    gap: 2rem;
}

.score-item {
    text-align: center;
}

.score-label {
    display: block;
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.score-value {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #ff6b6b;
}

.game-buttons {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.game-btn {
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.game-btn.primary {
    background: linear-gradient(135deg, #ff6b6b, #ffa500);
    color: white;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.game-btn.secondary {
    background: #f8f9fa;
    color: #333;
    border: 2px solid #e9ecef;
}

.game-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.game-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.game-main {
    padding: 3rem 0;
    background: #f8f9fa;
}

.game-layout {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.game-targets,
.game-food-area,
.game-current {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.game-targets h3,
.game-food-area h3,
.game-current h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: #333;
}

.target-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.target-item {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 10px;
    border-left: 4px solid #ff6b6b;
}

.target-item h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.target-range {
    font-size: 0.9rem;
    color: #666;
}

.food-selection {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 1rem;
    max-height: 400px;
    overflow-y: auto;
}

.game-food-card {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 1rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    min-height: 120px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.game-food-card:hover {
    background: #e9ecef;
    transform: scale(1.05);
}

.game-food-card.selected {
    background: linear-gradient(135deg, #ff6b6b, #ffa500);
    color: white;
}

.game-food-card .emoji {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.game-food-card .name {
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.game-food-card .nutrition-info {
    font-size: 0.7rem;
    color: #666;
}

.game-food-card .nutrition-info .nutrition-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.2rem;
}

.game-food-card .nutrition-info .label {
    font-weight: 500;
}

.game-food-card .nutrition-info .value {
    color: #ff6b6b;
    font-weight: 600;
}

.current-foods {
    margin-bottom: 2rem;
    min-height: 100px;
}

.current-food-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f8f9fa;
    padding: 0.5rem 1rem;
    border-radius: 10px;
    margin-bottom: 0.5rem;
}

.nutrition-display {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 10px;
    margin-bottom: 2rem;
}

.nutrition-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.game-actions {
    display: flex;
    gap: 1rem;
}

.action-btn {
    flex: 1;
    padding: 0.8rem;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.action-btn.primary {
    background: linear-gradient(135deg, #ff6b6b, #ffa500);
    color: white;
}

.action-btn.secondary {
    background: #e9ecef;
    color: #333;
}

.action-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 游戏结果模态框 */
.game-result {
    text-align: center;
    max-width: 500px;
}

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

/* 游戏说明 */
.game-instructions {
    padding: 3rem 0;
    background: white;
}

.instructions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.instruction-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.instruction-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.instruction-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.instruction-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.instruction-card p {
    color: #666;
    line-height: 1.6;
}

/* 页脚 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #ff6b6b;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #ff6b6b;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
    
    .language-switcher {
        margin-top: 1rem;
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 100px 0 60px;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .nutrition-calculator {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .game-layout {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .food-selection {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }
    
    .game-info {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    .score-board {
        justify-content: center;
    }
    
    .foods-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-container {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .food-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }
    
    .foods-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
    
    .game-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .game-btn.primary {
        padding: 1.2rem 2.5rem;
        font-size: 1.2rem;
    }
    
    .food-selection {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
    
    .game-food-card {
        min-height: 100px;
        padding: 0.8rem;
    }
    
    .game-food-card .nutrition-info {
        font-size: 0.6rem;
    }
    
    .result-actions {
        flex-direction: column;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #ff6b6b, #ffa500);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #ff5252, #ff8c00);
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid #ff6b6b;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* 空状态样式 */
.empty-message {
    text-align: center;
    color: #999;
    font-style: italic;
    padding: 2rem;
}

/* 成功/错误状态 */
.success {
    color: #28a745;
    background: #d4edda;
    border: 1px solid #c3e6cb;
    padding: 1rem;
    border-radius: 10px;
    margin: 1rem 0;
}

.error {
    color: #dc3545;
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    padding: 1rem;
    border-radius: 10px;
    margin: 1rem 0;
}

.warning {
    color: #856404;
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    padding: 1rem;
    border-radius: 10px;
    margin: 1rem 0;
}