/* 中式家常菜 - 中国红配色方案 */

:root {
    /* 中国红主题配色 */
    --primary-color: #c41e3a;
    --primary-dark: #8b0000;
    --primary-light: #ffe4e1;
    --secondary-color: #d4af37;
    --accent-color: #228b22;
    
    --bg-primary: #ffffff;
    --bg-secondary: #fef9f6;
    --bg-dark: #2c1810;
    
    --text-primary: #2c1810;
    --text-secondary: #6b4423;
    --text-light: #ffffff;
    
    --border-color: #e8d5c4;
    --shadow-color: rgba(196, 30, 58, 0.15);
    
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    --font-heading: 'STKaiti', 'KaiTi', 'SimKaiti', 'Noto Serif SC', serif;
    
    --border-radius: 8px;
    --border-radius-lg: 16px;
    --transition: all 0.3s ease;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
}

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

/* Header */
.site-header {
    background: var(--bg-primary);
    box-shadow: 0 2px 10px var(--shadow-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid var(--primary-color);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 2rem;
}

.logo h1 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--primary-color);
    font-weight: bold;
}

.main-nav {
    display: flex;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    font-size: 1rem;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.header-actions {
    display: flex;
    gap: 15px;
    align-items: center;
}

.btn-search, .btn-login {
    padding: 8px 16px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition);
}

.btn-search {
    background: transparent;
    color: var(--text-primary);
    font-size: 1.2rem;
}

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

.btn-login:hover {
    background: var(--primary-dark);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--bg-secondary) 50%, #fff8dc 100%);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23c41e3a' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

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

.hero-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.hero-search {
    display: flex;
    max-width: 600px;
    margin: 0 auto 30px;
    gap: 10px;
}

.search-input {
    flex: 1;
    padding: 15px 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.btn-primary {
    padding: 15px 30px;
    background: var(--primary-color);
    color: var(--text-light);
    border: none;
    border-radius: var(--border-radius-lg);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--shadow-color);
}

.hero-tags {
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.tag {
    padding: 8px 20px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.tag:hover {
    background: var(--primary-color);
    color: var(--text-light);
    border-color: var(--primary-color);
}

/* Categories Section */
.categories {
    padding: 60px 0;
    background: var(--bg-primary);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-primary);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--primary-color);
    margin: 10px auto 0;
    border-radius: 2px;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
}

.category-card {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.category-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px var(--shadow-color);
}

.category-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.category-card h4 {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 600;
}

/* Recipes Section */
.recipes {
    padding: 60px 0;
    background: var(--bg-secondary);
}

.recipe-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.recipe-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 15px var(--shadow-color);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.recipe-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--shadow-color);
}

.recipe-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-light) 0%, #fff8dc 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.recipe-content {
    padding: 20px;
}

.recipe-title {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 600;
}

.recipe-meta {
    display: flex;
    gap: 15px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.recipe-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.recipe-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.recipe-tag {
    padding: 4px 10px;
    background: var(--primary-light);
    color: var(--primary-color);
    border-radius: 12px;
    font-size: 0.8rem;
}

.load-more {
    text-align: center;
    margin-top: 40px;
}

.btn-secondary {
    padding: 12px 30px;
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--text-light);
}

/* Features Section */
.features {
    padding: 60px 0;
    background: var(--bg-primary);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-item {
    text-align: center;
    padding: 30px;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-item h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 600;
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Footer */
.site-footer {
    background: var(--bg-dark);
    color: var(--text-light);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand .logo-icon {
    font-size: 2.5rem;
}

.footer-brand h4 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin: 10px 0;
    color: var(--primary-color);
}

.footer-brand p {
    color: #a08070;
    line-height: 1.8;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.link-group h5 {
    font-size: 1rem;
    margin-bottom: 15px;
    color: var(--text-light);
    font-weight: 600;
}

.link-group a {
    display: block;
    color: #a08070;
    text-decoration: none;
    margin-bottom: 10px;
    transition: var(--transition);
}

.link-group a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid #4a3020;
    padding-top: 20px;
    text-align: center;
    color: #a08070;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .main-nav {
        display: none;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-search {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .logo h1 {
        font-size: 1.4rem;
    }
}