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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background: #fafafa;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 顶部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2c3e50;
    text-decoration: none;
}

.nav-logo i {
    margin-right: 0.5rem;
    color: #e74c3c;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: #5a6c7d;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #e74c3c;
    background: rgba(231, 76, 60, 0.1);
}

.nav-link.active {
    color: #e74c3c;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    border-radius: 2px;
}

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

.search-btn, .filter-btn {
    background: #fff;
    border: 2px solid #ecf0f1;
    border-radius: 12px;
    padding: 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #5a6c7d;
}

.search-btn:hover, .filter-btn:hover {
    border-color: #e74c3c;
    color: #e74c3c;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(231, 76, 60, 0.15);
}

/* 英雄区域 */
.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
    margin-top: 80px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.1) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    height: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    padding: 0 60px;
    max-width: 1400px;
    margin: 0 auto;
}

.hero-text {
    color: white;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.title-line {
    display: block;
}

.title-highlight {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    font-weight: 400;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
    color: white;
    box-shadow: 0 8px 30px rgba(238, 90, 36, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(238, 90, 36, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
}

.btn-outline {
    background: transparent;
    color: #e74c3c;
    border: 2px solid #e74c3c;
}

.btn-outline:hover {
    background: #e74c3c;
    color: white;
    transform: translateY(-2px);
}

.hero-image {
    position: relative;
}

.hero-slider {
    width: 500px;
    height: 650px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.2);
    position: relative;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 筛选栏 */
.filter-section {
    padding: 3rem 0;
    background: white;
    border-bottom: 1px solid #ecf0f1;
}

.filter-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-weight: 600;
    color: #2c3e50;
    font-size: 0.9rem;
}

.filter-group select {
    padding: 0.75rem 1rem;
    border: 2px solid #ecf0f1;
    border-radius: 12px;
    background: white;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.filter-group select:focus {
    outline: none;
    border-color: #e74c3c;
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

/* 节标题 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

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

.section-subtitle {
    font-size: 1.1rem;
    color: #7f8c8d;
    font-weight: 400;
}

.view-toggle {
    display: flex;
    gap: 0.5rem;
    background: #ecf0f1;
    padding: 0.25rem;
    border-radius: 10px;
    margin-top: 1rem;
}

.view-btn {
    padding: 0.5rem 0.75rem;
    border: none;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #7f8c8d;
}

.view-btn.active {
    background: white;
    color: #e74c3c;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* 精选商品 */
.featured-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

/* 商品卡片 */
.product-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    position: relative;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.product-image {
    position: relative;
    height: 400px;
    overflow: hidden;
    background: linear-gradient(45deg, #f093fb 0%, #f5576c 100%);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
}

.product-actions {
    position: absolute;
    top: 15px;
    right: 15px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    opacity: 0;
    transform: translateX(20px);
    transition: all 0.3s ease;
}

.product-card:hover .product-actions {
    opacity: 1;
    transform: translateX(0);
}

.action-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    color: #5a6c7d;
    backdrop-filter: blur(10px);
}

.action-btn:hover {
    background: white;
    color: #e74c3c;
    transform: scale(1.1);
}

.product-info {
    padding: 1.5rem;
}

.product-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.product-description {
    color: #7f8c8d;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.product-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.meta-tag {
    background: #ecf0f1;
    color: #5a6c7d;
    padding: 0.2rem 0.6rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 500;
}

.meta-tag.season {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.meta-tag.material {
    background: linear-gradient(135deg, #f093fb, #f5576c);
    color: white;
}

.product-price {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1rem;
}

.price-current {
    font-size: 1.8rem;
    font-weight: 700;
    color: #e74c3c;
}

.price-original {
    font-size: 1.1rem;
    color: #95a5a6;
    text-decoration: line-through;
}

.discount-badge {
    background: linear-gradient(135deg, #27ae60, #2ecc71);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* 商品目录 */
.catalog-section {
    padding: 5rem 0;
    background: white;
}

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.load-more {
    text-align: center;
    margin-top: 3rem;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background: white;
    border-radius: 20px;
    max-width: 900px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #ecf0f1;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #2c3e50;
}

.modal-close {
    background: #ecf0f1;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    color: #7f8c8d;
}

.modal-close:hover {
    background: #e74c3c;
    color: white;
    transform: rotate(90deg);
}

.modal-body {
    padding: 2rem;
}

/* 底部 */
.footer {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    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 h4 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.footer-section p {
    opacity: 0.8;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.footer-section i {
    margin-right: 0.5rem;
    color: #3498db;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.7;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 0 20px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-slider {
        width: 100%;
        max-width: 400px;
        height: 500px;
        margin: 2rem auto 0;
    }
    
    .featured-grid, .catalog-grid {
        grid-template-columns: 1fr;
    }
    
    .filter-bar {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(231, 76, 60, 0.3);
    border-radius: 50%;
    border-top-color: #e74c3c;
    animation: spin 1s ease-in-out infinite;
}

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

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: #7f8c8d;
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    margin-bottom: 0.5rem;
    color: #5a6c7d;
}

.empty-state p {
    font-size: 1rem;
    opacity: 0.8;
}