/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, #FFF5F0 0%, #FFF 50%, #FFF8F5 100%);
    min-height: 100vh;
    color: #333;
}

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

/* 顶部导航区 */
.header {
    background: linear-gradient(135deg, #FF6B35 0%, #FF8C42 100%);
    padding: 15px 0;
    box-shadow: 0 4px 20px rgba(255, 107, 53, 0.3);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 15px;
}

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

.logo-icon {
    font-size: 32px;
}

.logo h1 {
    color: #FFF;
    font-size: 24px;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
}

.search-box {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.95);
    border-radius: 25px;
    padding: 5px 5px 5px 20px;
    flex: 1;
    max-width: 400px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.search-box input {
    border: none;
    background: none;
    outline: none;
    flex: 1;
    font-size: 14px;
    color: #333;
}

.search-box input::placeholder {
    color: #999;
}

.search-btn {
    background: #FF6B35;
    border: none;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    cursor: pointer;
    font-size: 16px;
    transition: transform 0.3s;
}

.search-btn:hover {
    transform: scale(1.1);
}

.location {
    display: flex;
    align-items: center;
    gap: 5px;
    color: #FFF;
    font-size: 14px;
    font-weight: 500;
}

.location-icon {
    font-size: 18px;
}

/* 分类筛选区 */
.category-filter {
    background: #FFF;
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 70px;
    z-index: 99;
}

.category-list {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.category-btn {
    padding: 10px 24px;
    border: 2px solid #FFE5DC;
    background: #FFF;
    border-radius: 25px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #666;
    transition: all 0.3s ease;
}

.category-btn:hover {
    border-color: #FF6B35;
    color: #FF6B35;
    transform: translateY(-2px);
}

.category-btn.active {
    background: linear-gradient(135deg, #FF6B35 0%, #FF8C42 100%);
    border-color: #FF6B35;
    color: #FFF;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
}

/* 餐厅列表区 */
.restaurant-list {
    padding: 30px 0 50px;
}

.restaurant-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
}

/* 餐厅卡片 */
.restaurant-card {
    background: #FFF;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    cursor: pointer;
}

.restaurant-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

.card-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #FFE5DC 0%, #FFF0EB 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    position: relative;
    overflow: hidden;
}

.card-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.3) 100%);
}

.card-content {
    padding: 20px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 12px;
}

.card-title {
    font-size: 20px;
    font-weight: 700;
    color: #333;
    margin-bottom: 5px;
}

.card-rating {
    display: flex;
    align-items: center;
    gap: 5px;
    background: linear-gradient(135deg, #FFD700 0%, #FFA500 100%);
    padding: 5px 10px;
    border-radius: 15px;
    font-weight: 600;
    color: #FFF;
    font-size: 14px;
}

.card-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.card-price {
    font-size: 16px;
    color: #FF6B35;
    font-weight: 600;
}

.card-distance {
    font-size: 14px;
    color: #999;
    display: flex;
    align-items: center;
    gap: 5px;
}

.card-expand {
    width: 100%;
    padding: 10px;
    background: #FFF5F0;
    border: 1px solid #FFE5DC;
    border-radius: 10px;
    cursor: pointer;
    font-size: 14px;
    color: #FF6B35;
    font-weight: 500;
    transition: all 0.3s;
}

.card-expand:hover {
    background: #FF6B35;
    color: #FFF;
}

/* 展开详情 */
.card-detail {
    display: none;
    padding: 15px 0 0;
    border-top: 1px solid #F0F0F0;
    margin-top: 15px;
}

.card-detail.show {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.detail-item {
    display: flex;
    align-items: start;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 14px;
    color: #666;
}

.detail-icon {
    font-size: 16px;
    flex-shrink: 0;
}

.detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.tag {
    background: #FFF5F0;
    color: #FF6B35;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
}

/* 底部信息区 */
.footer {
    background: #333;
    color: #FFF;
    padding: 20px 0;
    text-align: center;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 10px;
    }
    
    .search-box {
        max-width: 100%;
        width: 100%;
    }
    
    .logo h1 {
        font-size: 20px;
    }
    
    .category-list {
        gap: 8px;
    }
    
    .category-btn {
        padding: 8px 16px;
        font-size: 13px;
    }
    
    .restaurant-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .card-image {
        height: 180px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .restaurant-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #999;
}

.empty-state-icon {
    font-size: 60px;
    margin-bottom: 20px;
}

.empty-state-text {
    font-size: 16px;
}