* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}

body {
    color: white;
    min-height: 100vh;
    overflow-x: hidden;
}

.fixed-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../img/2.jpg') no-repeat center center;
    background-size: cover;
    z-index: -1;
}

.fixed-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.8));
}

/* 内容区域 */
.content-wrapper {
    position: relative;
    min-height: 100vh;
    padding: 30px 20px;
}

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

/* 页面头部 */
.page-header {
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

.logo {
    font-size: 2.5rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.logo-text {
    font-size: 3rem;
    font-weight: bold;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.7);
}

.page-title {
    font-size: 3.5rem;
    margin-bottom: 15px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.7);
    letter-spacing: 2px;
}

.page-subtitle {
    font-size: 1.3rem;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.7);
}

.divider {
    height: 4px;
    width: 100px;
    background: linear-gradient(to right, #ffcc00, #ff9800);
    margin: 20px auto;
    border-radius: 2px;
}

.food-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.food-card {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    transition: all 0.4s ease;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.food-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.2);
}

.food-image {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.food-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.food-card:hover .food-image img {
    transform: scale(1.05);
}

.food-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.7));
    display: flex;
    align-items: flex-end;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.food-card:hover .food-overlay {
    opacity: 1;
}

.food-name {
    color: white;
    font-size: 1.8rem;
    font-weight: bold;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.7);
}

.food-content {
    padding: 25px;
}

.food-history {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
    margin-bottom: 20px;
    height: 80px;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.button-group {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn-detail {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 12px 25px;
    font-size: 1rem;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    flex: 1;
    min-width: 140px;
    justify-content: center;
}

.btn-detail:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.btn-ai {
    background: rgba(52, 152, 219, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 12px 25px;
    font-size: 1rem;
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
    flex: 1;
    min-width: 120px;
    justify-content: center;
}

.btn-ai:hover {
    background: rgba(41, 128, 185, 0.8);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    color: #333;
    border-radius: 12px;
    width: 90%;
    max-width: 1000px;
    height: 80vh;
    overflow: hidden;
    transform: scale(0.8);
    transition: transform 0.4s ease;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid #eee;
    background: #f8f5f0;
}

.modal-title {
    font-size: 1.5rem;
    color: #c62828;
    font-weight: bold;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #666;
    transition: color 0.3s;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.close-modal:hover {
    background: #f0f0f0;
    color: #c62828;
}

.modal-body {
    flex: 1;
    overflow: hidden;
    display: flex;
}

.modal-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* AI弹窗样式 */
.ai-modal-content {
    background: white;
    color: #333;
    border-radius: 12px;
    width: 90%;
    max-width: 800px;
    height: 70vh;
    overflow: hidden;
    transform: scale(0.8);
    transition: transform 0.4s ease;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
}

.modal-overlay.active .ai-modal-content {
    transform: scale(1);
}

.ai-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid #eee;
    background: #f0f7ff;
}

.ai-modal-title {
    font-size: 1.5rem;
    color: #2980b9;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
}

.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    font-size: 1.2rem;
    color: #666;
    background: rgba(255, 255, 255, 0.9);
    z-index: 10;
    flex-direction: column;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(198, 40, 40, 0.2);
    border-left: 4px solid #c62828;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 15px;
}

.ai-spinner {
    border: 4px solid rgba(52, 152, 219, 0.2);
    border-left: 4px solid #3498db;
}

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

@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }

    .page-subtitle {
        font-size: 1.1rem;
    }

    .food-grid {
        grid-template-columns: 1fr;
    }

    .modal-content, .ai-modal-content {
        width: 95%;
        height: 85vh;
    }

    .logo-text {
        font-size: 2.2rem;
    }

    .button-group {
        flex-direction: column;
    }
}