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

:root {
    --primary-color: #000000;
    --secondary-color: #ffffff;
    --accent-color: #d4af37;
    --text-color: #333333;
    --text-light: #666666;
    --border-color: #e0e0e0;
    --bg-light: #f8f8f8;
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}

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

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

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

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo h1 {
    font-size: 28px;
    font-weight: bold;
    color: var(--primary-color);
    letter-spacing: 2px;
}

.logo-subtitle {
    font-size: 12px;
    color: var(--text-light);
    letter-spacing: 1px;
    display: block;
    margin-top: -5px;
}

.nav-menu ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 16px;
    transition: color 0.3s;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--accent-color);
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--accent-color);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--primary-color);
    transition: all 0.3s;
}

/* Hero 区域 */
.hero {
    background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 100%);
    padding: 80px 0;
    text-align: center;
}

.hero-title {
    font-size: 42px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 50px;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

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

.feature-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.feature-item h3 {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.feature-item p {
    color: var(--text-light);
    font-size: 14px;
}

/* 通用区块样式 */
.section-title {
    font-size: 32px;
    font-weight: bold;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 50px;
    position: relative;
    padding-bottom: 20px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--accent-color);
}

.platform-intro {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

.intro-content {
    max-width: 900px;
    margin: 0 auto;
}

.intro-content p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 20px;
    text-align: justify;
}

/* 产品类别 */
.product-categories {
    padding: 80px 0;
    background-color: var(--bg-light);
}

/* 热门产品 */
.featured-products {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

.featured-products .products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.category-card {
    background-color: var(--secondary-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.category-image {
    width: 100%;
    height: 400px;
    overflow: hidden;
}

.category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

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

.category-card h3 {
    padding: 20px;
    text-align: center;
    font-size: 20px;
    color: var(--primary-color);
}

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

.btn-primary {
    display: inline-block;
    padding: 12px 40px;
    background-color: var(--primary-color);
    color: var(--secondary-color);
    text-decoration: none;
    border-radius: 4px;
    font-size: 16px;
    transition: background-color 0.3s;
    border: none;
    cursor: pointer;
}

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

/* 增值服务 */
.value-services {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-item {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
}

.service-number {
    font-size: 32px;
    color: var(--accent-color);
    font-weight: bold;
    margin-bottom: 15px;
}

.service-item h3 {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.service-item p {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.6;
}

/* 合作设计师 */
.designers {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.designers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
}

.designer-item {
    background-color: var(--secondary-color);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.designer-item:hover {
    transform: translateY(-5px);
}

.designer-item img {
    width: 100%;
    max-width: 150px;
    height: auto;
    margin-bottom: 15px;
}

.designer-item h3 {
    font-size: 14px;
    color: var(--text-color);
}

/* 二维码区域 */
.qr-section {
    padding: 80px 0;
    background-color: var(--secondary-color);
}

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

.qr-code {
    display: inline-block;
    margin-bottom: 20px;
}

.qr-code img {
    width: 200px;
    height: 200px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
    background-color: var(--secondary-color);
}

.qr-text {
    font-size: 16px;
    color: var(--text-light);
}

/* 移动应用 */
.mobile-apps {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.apps-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.app-item {
    background-color: var(--secondary-color);
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.app-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

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

.app-item h3 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.app-item p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 20px;
}

.app-status {
    margin-top: 20px;
}

.status-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: bold;
}

.status-badge.available {
    background-color: #27ae60;
    color: var(--secondary-color);
}

.status-badge.developing {
    background-color: var(--accent-color);
    color: var(--secondary-color);
}

/* 页脚 */
.footer {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    padding: 60px 0 20px;
}

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

.footer-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--accent-color);
}

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

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

.footer-section a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-section p {
    margin-bottom: 10px;
    font-size: 14px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    margin-bottom: 10px;
    font-size: 14px;
}

/* 页面标题 */
.page-title {
    font-size: 36px;
    font-weight: bold;
    color: var(--primary-color);
    text-align: center;
    padding: 60px 0 40px;
    margin-bottom: 40px;
    border-bottom: 2px solid var(--border-color);
}

/* 产品页面 */
.products-page {
    padding: 40px 0 80px;
}

.category-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 30px;
    justify-content: center;
}

.filter-btn {
    padding: 10px 20px;
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 14px;
}

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

.filter-toolbar {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

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

.filter-group label {
    font-size: 14px;
    color: var(--text-color);
}

.filter-group select {
    padding: 8px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    background-color: var(--secondary-color);
}

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

.product-card {
    background-color: var(--secondary-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.product-card:hover {
    transform: translateY(-5px);
}

.product-image {
    width: 100%;
    height: 350px;
    overflow: hidden;
    position: relative;
}

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

.discount-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: #e74c3c;
    color: var(--secondary-color);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
}

.product-info {
    padding: 20px;
}

.product-name {
    font-size: 18px;
    color: var(--primary-color);
    margin-bottom: 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-brand {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 10px;
}

.product-price-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.product-price {
    font-size: 20px;
    color: var(--accent-color);
    font-weight: bold;
}

.original-price {
    font-size: 14px;
    color: var(--text-light);
    text-decoration: line-through;
}

.product-category {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 5px;
}

.loading,
.error,
.no-products {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
}

.loading p,
.error p,
.no-products p {
    font-size: 16px;
}

.error {
    color: #e74c3c;
}

/* 关于我们页面 */
.about-page {
    padding: 40px 0 80px;
}

.about-section {
    margin-bottom: 60px;
}

.about-content p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 20px;
    text-align: justify;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.advantage-item {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
}

.advantage-item h3 {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.advantage-item p {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.6;
}

.services-detail {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.service-detail-item {
    display: flex;
    gap: 20px;
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 8px;
}

.service-detail-item .service-number {
    font-size: 40px;
    color: var(--accent-color);
    font-weight: bold;
    flex-shrink: 0;
}

.service-content h3 {
    font-size: 22px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.service-content p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.8;
}

.brand-story {
    max-width: 900px;
    margin: 0 auto;
}

.brand-story p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 20px;
    text-align: justify;
}

/* 应用介绍页面 */
.app-page {
    padding: 40px 0 80px;
}

.app-intro {
    margin-bottom: 60px;
}

.app-intro-content {
    display: flex;
    align-items: center;
    gap: 50px;
    flex-wrap: wrap;
}

.app-intro-text {
    flex: 1;
    min-width: 300px;
}

.app-intro-text h2 {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.intro-subtitle {
    font-size: 18px;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.app-intro-text p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-color);
}

.app-qr-code {
    text-align: center;
    flex-shrink: 0;
}

.app-qr-code img {
    width: 200px;
    height: 200px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 15px;
}

.app-features {
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card .feature-icon {
    font-size: 50px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.6;
}

.usage-guide {
    margin-bottom: 60px;
}

.guide-steps {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.guide-step {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.step-number {
    width: 50px;
    height: 50px;
    background-color: var(--accent-color);
    color: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.step-content p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.6;
}

.download-section {
    margin-bottom: 60px;
}

.download-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 50px;
    flex-wrap: wrap;
}

.download-qr img {
    width: 200px;
    height: 200px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
}

.download-text {
    text-align: left;
}

.download-text h3 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.download-text p {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 10px;
}

.download-tip {
    color: var(--accent-color) !important;
    font-weight: bold;
}

/* APP开发中 */
.app-developing {
    margin-top: 60px;
    padding: 60px 0;
    background-color: var(--bg-light);
    border-radius: 8px;
}

.app-developing-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.app-developing-icon {
    font-size: 80px;
    margin-bottom: 30px;
}

.app-developing-content h3 {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.app-developing-content p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 15px;
}

.app-developing-note {
    font-size: 14px;
    color: var(--text-light);
    font-style: italic;
}

/* 用户协议页面 */
.terms-page {
    padding: 40px 0 80px;
}

.terms-section {
    margin-bottom: 60px;
}

.terms-content {
    max-width: 900px;
    margin: 0 auto;
}

.terms-content h3 {
    font-size: 20px;
    color: var(--primary-color);
    margin-top: 30px;
    margin-bottom: 15px;
}

.terms-content p {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 15px;
    text-align: justify;
}

.terms-content ul {
    margin-left: 30px;
    margin-bottom: 15px;
}

.terms-content li {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 10px;
}

.terms-update {
    background-color: var(--bg-light);
    padding: 20px;
    border-radius: 8px;
    margin-top: 40px;
}

.terms-update p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 10px;
}

/* 联系我们页面 */
.contact-page {
    padding: 40px 0 80px;
}

.contact-content {
    max-width: 1000px;
    margin: 0 auto;
}

.contact-section {
    margin-bottom: 60px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    gap: 20px;
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: 8px;
}

.contact-icon {
    font-size: 40px;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.contact-details p {
    font-size: 15px;
    color: var(--text-color);
    margin-bottom: 10px;
}

.contact-details a {
    color: var(--accent-color);
    text-decoration: none;
}

.contact-note {
    font-size: 13px;
    color: var(--text-light);
    font-style: italic;
}

.wechat-qr {
    text-align: center;
    margin-top: 15px;
}

.wechat-qr img {
    width: 150px;
    height: 150px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
    margin-bottom: 10px;
}

.contact-form {
    background-color: var(--bg-light);
    padding: 40px;
    border-radius: 8px;
    max-width: 700px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-size: 15px;
    color: var(--text-color);
    margin-bottom: 8px;
}

.required {
    color: #e74c3c;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 15px;
    font-family: var(--font-main);
    transition: border-color 0.3s;
}

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

.form-group textarea {
    resize: vertical;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.faq-item {
    background-color: var(--bg-light);
    padding: 25px;
    border-radius: 8px;
    border-left: 4px solid var(--accent-color);
}

.faq-item h3 {
    font-size: 18px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.faq-item p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.6;
}