:root {
    --primary-color: #FF6B35;
    --secondary-color: #004E89;
    --accent-color: #F7C948;
    --background-color: #FFF8F0;
    --text-color: #2D3436;
    --light-gray: #f0f0f0;
    --border-color: #ddd;
    --success-color: #27ae60;
    --error-color: #e74c3c;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease-in-out;
    --border-radius: 12px;
}

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

body {
    font-family: "Microsoft YaHei", "SimSun", sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

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

.main-header {
    background: linear-gradient(135deg, var(--primary-color), #ff8c5a);
    color: white;
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: bold;
}

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

.main-nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: 6px;
}

.main-nav a:hover,
.main-nav a.active {
    background-color: rgba(255, 255, 255, 0.2);
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #fff;
    min-width: 160px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.15);
    border-radius: 8px;
    overflow: hidden;
    z-index: 1000;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-menu li {
    border-bottom: 1px solid #eee;
}

.dropdown-menu li:last-child {
    border-bottom: none;
}

.dropdown-menu a {
    color: #2D3436 !important;
    padding: 0.75rem 1rem !important;
    display: block;
}

.dropdown-menu a:hover {
    background-color: #FF6B35 !important;
    color: #fff !important;
}

.dropdown > a::after {
    content: ' ▼';
    font-size: 0.7em;
}

.main-content {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

.main-footer {
    background-color: var(--secondary-color);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 3rem;
}

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

.footer-section h3 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

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

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

.footer-section a {
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero {
    background: linear-gradient(135deg, var(--primary-color), #ff8c5a);
    color: white;
    padding: 4rem 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    margin-bottom: 2rem;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

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

.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background-color: var(--secondary-color);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
    font-weight: 500;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    background-color: #0056b3;
}

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

.btn-primary:hover {
    background-color: #e55a2b;
}

.section-title {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--secondary-color);
    font-size: 2rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.card {
    background: white;
    border-radius: var(--border-radius);
    padding: 1rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    border: 3px solid transparent;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.card.selected {
    border-color: var(--primary-color);
    background-color: #fff5f0;
}

.card h3 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.card .category {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--text-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.card p {
    color: #666;
    font-size: 0.95rem;
}

.card .flavor {
    margin-top: 0.5rem;
    color: var(--primary-color);
    font-weight: 500;
}

.selection-bar {
    background: white;
    padding: 1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    position: sticky;
    top: 80px;
    z-index: 100;
}

.selection-bar h3 {
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.selection-info {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.selection-count {
    background-color: var(--accent-color);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.filter-tab {
    padding: 0.5rem 1.5rem;
    background-color: white;
    border: 2px solid var(--border-color);
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
}

.filter-tab:hover,
.filter-tab.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--secondary-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.search-box {
    margin-bottom: 1.5rem;
}

.search-box input {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.cuisine-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.cuisine-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 1rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
    color: var(--text-color);
}

.cuisine-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.cuisine-card .emoji {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.cuisine-card h4 {
    color: var(--secondary-color);
}

.result-container {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    margin-top: 2rem;
}

.recipe-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px dashed var(--border-color);
}

.recipe-header h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 1rem;
}

.recipe-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
    margin-bottom: 1.5rem;
}

.evaluation-section {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-top: 1.5rem;
}

.evaluation-title {
    color: var(--secondary-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    text-align: center;
}

.evaluation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.evaluation-item {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
}

.evaluation-item .label {
    font-weight: 500;
    color: #666;
    margin-bottom: 0.5rem;
}

.evaluation-item .score {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: bold;
}

.stars {
    color: var(--accent-color);
    font-size: 1.2rem;
}

.evaluation-text {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    line-height: 1.8;
    white-space: pre-line;
    margin-top: 1rem;
}

.selection-summary {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1.5rem;
}

.selection-summary h4 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.selection-summary ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.selection-summary li {
    background: var(--accent-color);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.9rem;
}

.progress-bar {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.progress-step {
    flex: 1;
    text-align: center;
    padding: 0.75rem;
    background: var(--light-gray);
    border-radius: 8px;
    transition: var(--transition);
}

.progress-step.active {
    background: var(--primary-color);
    color: white;
}

.progress-step.completed {
    background: var(--success-color);
    color: white;
}

.no-data {
    text-align: center;
    padding: 3rem;
    color: #999;
}

.no-data .emoji {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.admin-header {
    background: var(--secondary-color);
    color: white;
    padding: 1rem;
    margin-bottom: 2rem;
    border-radius: var(--border-radius);
}

.admin-header h2 {
    margin-bottom: 0;
}

.admin-table {
    width: 100%;
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.admin-table table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    background: var(--secondary-color);
    color: white;
}

.admin-table tr:hover {
    background: #f8f9fa;
}

.action-btn {
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.9rem;
    margin-right: 0.5rem;
    display: inline-block;
}

.action-btn-edit {
    background-color: var(--secondary-color);
    color: white;
}

.action-btn-delete {
    background-color: var(--error-color);
    color: white;
}

@media (max-width: 768px) {
    .main-header .container {
        flex-direction: column;
        gap: 1rem;
    }

    .main-nav ul {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero {
        padding: 2rem 1rem;
    }

    .hero h2 {
        font-size: 1.5rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .card-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }

    .cuisine-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }

    .cuisine-card .emoji {
        font-size: 2rem;
    }

    .filter-tabs {
        justify-content: center;
    }

    .filter-tab {
        padding: 0.4rem 1rem;
        font-size: 0.85rem;
    }

    .selection-bar {
        position: relative;
        top: 0;
    }

    .selection-info {
        flex-direction: column;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-section h3 {
        margin-bottom: 0.75rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .btn {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 0.6rem;
        font-size: 16px;
    }

    .admin-table {
        overflow-x: auto;
    }

    .admin-table table {
        font-size: 0.85rem;
    }

    .admin-table th,
    .admin-table td {
        padding: 0.6rem;
    }

    .progress-bar {
        flex-direction: column;
    }

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

    .result-container {
        padding: 1rem;
    }

    .recipe-header h2 {
        font-size: 1.5rem;
    }

    .recipe-description {
        font-size: 1rem;
    }

    .checkbox-card input[type="checkbox"] {
        width: 20px;
        height: 20px;
        top: 0.75rem;
        right: 0.75rem;
    }

    .card {
        padding: 0.75rem;
    }

    .card h3 {
        font-size: 1rem;
    }

    .card p {
        font-size: 0.85rem;
    }

    .lightbox-controls {
        padding: 8px 15px;
    }

    .lightbox-controls button {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }

    .modal-content {
        margin: 1rem;
        padding: 1rem;
    }

    .admin-layout {
        flex-direction: column;
    }

    .admin-sidebar {
        width: 100%;
        margin-bottom: 1rem;
    }

    .admin-nav ul {
        display: flex;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .admin-nav li {
        flex: 1 1 auto;
        min-width: 100px;
    }

    .admin-nav a {
        padding: 0.5rem;
        font-size: 0.85rem;
        text-align: center;
    }

    .comments-list {
        padding: 0.5rem;
    }

    .comment-item {
        padding: 0.75rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }

    .logo h1 {
        font-size: 1.4rem;
    }

    .hero {
        padding: 1.5rem 0.75rem;
    }

    .hero h2 {
        font-size: 1.3rem;
    }

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

    .cuisine-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .section-title {
        font-size: 1.3rem;
    }

    .admin-header {
        padding: 0.75rem;
    }

    .admin-header h1 {
        font-size: 1.2rem;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .form-grid {
        grid-template-columns: 1fr !important;
    }

    .table-responsive {
        overflow-x: scroll;
    }

    .mb-3 {
        margin-bottom: 1rem;
    }
}

.checkbox-card {
    position: relative;
}

.checkbox-card input[type="checkbox"] {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 24px;
    height: 24px;
    cursor: pointer;
    z-index: 10;
}

.checkbox-card .card-check {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.checkbox-card.selected .card-check {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-card.selected .card-check::after {
    content: "✓";
    color: white;
    font-weight: bold;
}

.loading {
    text-align: center;
    padding: 3rem;
}

.loading .spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--light-gray);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.badge-primary {
    background: var(--primary-color);
    color: white;
}

.badge-secondary {
    background: var(--secondary-color);
    color: white;
}

.badge-success {
    background: var(--success-color);
    color: white;
}

.d-flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

.align-center {
    align-items: center;
}

.gap-1 {
    gap: 0.5rem;
}

.gap-2 {
    gap: 1rem;
}

.mb-1 {
    margin-bottom: 0.5rem;
}

.mb-2 {
    margin-bottom: 1rem;
}

.mb-3 {
    margin-bottom: 1.5rem;
}

.mt-2 {
    margin-top: 1rem;
}

.mt-3 {
    margin-top: 1.5rem;
}

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