/* 全局样式 */
:root {
    --primary-color: #4a6d8c;
    --secondary-color: #e67e22;
    --accent-color: #f39c12;
    --text-color: #333;
    --light-text: #777;
    --white: #fff;
    --light-bg: #f9f9f9;
    --border-color: #eee;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: #3a5d7c;
}

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

.btn-secondary:hover {
    background-color: #d35400;
}

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

.btn-white:hover {
    background-color: #f5f5f5;
}

.btn-outline {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

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

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 32px;
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--secondary-color);
}

.section-header p {
    color: var(--light-text);
    font-size: 18px;
}

/* 头部样式 */
.header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
}

.logo h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
}

.logo h1 span {
    color: var(--secondary-color);
}

.main-nav ul {
    display: flex;
}

.main-nav li {
    margin: 0 15px;
}

.main-nav a {
    font-weight: 500;
    padding: 8px 0;
    position: relative;
}

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

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

.header-right {
    display: flex;
    align-items: center;
}

.search-box {
    display: flex;
    margin-right: 20px;
}

.search-box input {
    width: 200px;
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px 0 0 4px;
    outline: none;
}

.search-box button {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 10px 15px;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
}

.user-actions {
    display: flex;
}

.icon-btn {
    font-size: 18px;
    margin-left: 15px;
    position: relative;
    color: var(--text-color);
}

.icon-btn:hover {
    color: var(--secondary-color);
}

.cart .badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: var(--secondary-color);
    color: var(--white);
    font-size: 12px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 主横幅 */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://24344043.s21i.faiusr.com/2/ABUIABACGAAgrbzKvgYo3v2okwEw-gc41QY.jpg');
    background-size: cover;
    background-position: center;
    color: var(--white);
    padding: 120px 0;
    text-align: center;
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
}

/* 特色分类 */
.categories {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.category-card {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    text-align: center;
}

.category-card:hover {
    transform: translateY(-10px);
}

.category-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.category-card h3 {
    padding: 20px 0 10px;
    font-size: 20px;
}

.category-card .btn {
    margin: 0 20px 20px;
}

/* 热销商品 */
.featured-products {
    padding: 80px 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.product-card {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
    z-index: 1;
}

.product-img {
    position: relative;
    overflow: hidden;
}

.product-img img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition);
}

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

.product-actions {
    position: absolute;
    bottom: -50px;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 10px;
    background-color: rgba(255, 255, 255, 0.9);
    transition: var(--transition);
}

.product-card:hover .product-actions {
    bottom: 0;
}

.action-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--white);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.action-btn:hover {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.product-info {
    padding: 20px;
}

.product-info h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.rating {
    color: #f39c12;
    margin-bottom: 10px;
}

.rating span {
    color: var(--light-text);
    margin-left: 5px;
}

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

.price .current {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-color);
}

.price .original {
    font-size: 16px;
    color: var(--light-text);
    text-decoration: line-through;
}

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

/* 优惠活动 */
.promotion {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.promo-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    grid-template-rows: repeat(2, 1fr);
    gap: 30px;
}

.promo-card {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.promo-card.large {
    grid-row: span 2;
}

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

.promo-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.6));
    color: var(--white);
    padding: 30px;
    text-align: center;
}

.promo-content h3 {
    font-size: 28px;
    margin-bottom: 10px;
}

.promo-content p {
    font-size: 18px;
    margin-bottom: 20px;
}

/* 设计理念 */
.design-concept {
    padding: 80px 0;
}

.concept-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.concept-card {
    text-align: center;
    padding: 30px;
    border-radius: 8px;
    background-color: var(--white);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.concept-card:hover {
    transform: translateY(-10px);
}

.concept-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
}

.concept-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
}

.concept-card p {
    color: var(--light-text);
}

/* 客户评价 */
.testimonials {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.testimonial-slider {
    display: flex;
    gap: 30px;
}

.testimonial-card {
    background-color: var(--white);
    border-radius: 8px;
    padding: 30px;
    box-shadow: var(--box-shadow);
    display: flex;
    gap: 20px;
}

.testimonial-avatar img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-content {
    flex: 1;
}

.testimonial-content p {
    font-style: italic;
    margin-bottom: 20px;
}

.testimonial-author h4 {
    font-size: 18px;
    margin-bottom: 5px;
}

/* 品牌故事 */
.brand-story {
    padding: 80px 0;
}

.brand-story .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.story-content h2 {
    font-size: 32px;
    margin-bottom: 20px;
}

.story-content p {
    margin-bottom: 20px;
}

.story-image img {
    border-radius: 8px;
    box-shadow: var(--box-shadow);
}

/* 订阅区域 */
.subscribe {
    padding: 80px 0;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://24344043.s21i.faiusr.com/2/ABUIABACGAAgrbzKvgYo3v2okwEw-gc41QY.jpg');
    background-size: cover;
    background-position: center;
    color: var(--white);
    text-align: center;
}

.subscribe-content {
    max-width: 600px;
    margin: 0 auto;
}

.subscribe-content h2 {
    font-size: 32px;
    margin-bottom: 10px;
}

.subscribe-content p {
    margin-bottom: 30px;
}

.subscribe-form {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
}

.subscribe-form input {
    flex: 1;
    padding: 15px;
    border: none;
    border-radius: 4px 0 0 4px;
    outline: none;
}

.subscribe-form button {
    border-radius: 0 4px 4px 0;
}

/* 页脚 */
.footer {
    background-color: #2c3e50;
    color: var(--white);
    padding-top: 60px;
}

.footer-top {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    padding-bottom: 40px;
}

.footer-logo h2 {
    font-size: 24px;
    margin-bottom: 15px;
}

.footer-logo span {
    color: var(--secondary-color);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--secondary-color);
}

.footer-col h3 {
    font-size: 18px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--secondary-color);
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a:hover {
    color: var(--secondary-color);
}

.contact-info li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 15px;
}

.contact-info li i {
    margin-top: 5px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px 0;
    text-align: center;
}

/* 响应式设计 - 仅针对电脑端，不考虑移动端 */
@media (max-width: 1200px) {
    .category-grid,
    .product-grid,
    .concept-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .promo-grid {
        grid-template-columns: 1fr;
    }
    
    .promo-card.large {
        grid-row: span 1;
    }
    
    .brand-story .container {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 商家入驻区域 */
.merchant-join {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.merchant-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.merchant-info h2 {
    font-size: 32px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.merchant-info p {
    font-size: 18px;
    margin-bottom: 25px;
    color: var(--text-color);
}

.merchant-benefits {
    margin-bottom: 30px;
}

.merchant-benefits li {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.merchant-benefits i {
    color: var(--secondary-color);
    font-size: 18px;
}

.merchant-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: var(--box-shadow);
}

/* 页脚链接 */
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--light-text);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--white);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .merchant-content {
        grid-template-columns: 1fr;
    }
    
    .merchant-image {
        order: -1;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
    }
}