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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8f9fa;
    min-height: 100vh;
}

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

a {
    color: #1890ff;
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: #40a9ff;
}

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
}

/* ========================================
   按钮样式
   ======================================== */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    font-size: 14px;
    text-align: center;
    font-weight: 500;
}

.btn-primary {
    background: #1890ff;
    color: #fff;
}

.btn-primary:hover {
    background: #40a9ff;
    color: #fff;
}

.btn-outline {
    background: #fff;
    color: #1890ff;
    border: 1px solid #1890ff;
}

.btn-outline:hover {
    background: #1890ff;
    color: #fff;
}

.btn-lg {
    padding: 14px 32px;
    font-size: 16px;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-block {
    display: block;
    width: 100%;
}

/* ========================================
   头部导航
   ======================================== */
.site-header {
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 600;
    color: #333;
}

.logo a:hover {
    color: #1890ff;
}

.logo-icon {
    font-size: 24px;
}

.main-nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: #666;
    font-size: 15px;
    padding: 8px 0;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #1890ff;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: #1890ff;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 3px;
    background: #333;
    margin: 2px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* 移动端菜单按钮动画 */
.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* ========================================
   面包屑
   ======================================== */
.breadcrumb {
    background: #fff;
    padding: 12px 0;
    font-size: 14px;
    border-bottom: 1px solid #f0f0f0;
}

.breadcrumb a {
    color: #666;
}

.breadcrumb a:hover {
    color: #1890ff;
}

.breadcrumb span {
    color: #999;
    margin: 0 8px;
}

/* ========================================
   推广区域
   ======================================== */
.promotion-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 80px 0;
}

.promotion-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.promotion-title {
    font-size: 42px;
    margin-bottom: 16px;
    font-weight: 700;
}

.promotion-subtitle {
    font-size: 20px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.promotion-benefits {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: rgba(255,255,255,0.1);
    padding: 20px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.benefit-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.benefit-content h3 {
    font-size: 18px;
    margin-bottom: 8px;
    font-weight: 600;
}

.benefit-content p {
    font-size: 14px;
    opacity: 0.9;
    line-height: 1.5;
}

.promotion-stats {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
}

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

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: #ffd700;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    opacity: 0.8;
}

.promotion-actions {
    display: flex;
    gap: 16px;
}

.promotion-right {
    display: flex;
    justify-content: center;
    align-items: center;
}

.income-showcase {
    background: rgba(255,255,255,0.95);
    color: #333;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.1);
    backdrop-filter: blur(10px);
    width: 100%;
    max-width: 400px;
}

.income-showcase h3 {
    font-size: 20px;
    margin-bottom: 20px;
    text-align: center;
    color: #333;
}

.income-items {
    margin-bottom: 20px;
}

.income-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
}

.income-item:last-child {
    border-bottom: none;
}

.income-product {
    font-size: 14px;
    color: #666;
}

.income-commission {
    font-size: 16px;
    font-weight: 600;
    color: #52c41a;
}

.income-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-top: 2px solid #f0f0f0;
    font-weight: 600;
}

.total-amount {
    font-size: 24px;
    color: #ff4d4f;
    font-weight: 700;
}

/* ========================================
   代理优势区域
   ======================================== */
.agent-advantages-section {
    padding: 60px 0;
    background: #f8f9fa;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.advantage-card {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    text-align: center;
    transition: all 0.3s;
}

.advantage-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.advantage-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.advantage-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: #333;
}

.advantage-card p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

.advantage-card ul {
    list-style: none;
    text-align: left;
}

.advantage-card li {
    color: #666;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.advantage-card li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #52c41a;
    font-weight: bold;
}

/* ========================================
   推广流程区域
   ======================================== */
.promotion-process-section {
    padding: 60px 0;
    background: #fff;
}

.process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    margin: 40px 0;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    max-width: 200px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: #1890ff;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 16px;
}

.step-content h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: #333;
}

.step-content p {
    color: #666;
    font-size: 14px;
    line-height: 1.5;
}

.step-arrow {
    font-size: 24px;
    color: #1890ff;
    font-weight: bold;
}

.process-action {
    text-align: center;
    margin-top: 40px;
}

/* ========================================
   Section通用样式
   ======================================== */
.products-section,
.products-list-section,
.ranking-section {
    padding: 60px 0;
}

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

.section-header h1,
.section-header h2 {
    font-size: 36px;
    margin-bottom: 12px;
}

.section-header p {
    font-size: 16px;
    color: #666;
}

.section-footer {
    text-align: center;
    margin-top: 40px;
}

/* ========================================
   产品卡片
   ======================================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 24px;
}

.product-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: all 0.3s;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}

.product-image {
    position: relative;
    padding-top: 75%;
    overflow: hidden;
    background: #fff !important;
}

.product-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.product-type-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(255,255,255,0.95);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.product-info {
    padding: 16px;
}

.product-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
    min-height: 44px;
}

.product-title a {
    color: #333;
}

.product-title a:hover {
    color: #1890ff;
}

.product-operator {
    font-size: 13px;
    color: #666;
    margin-bottom: 12px;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.product-features .feature-item {
    font-size: 12px;
    color: #666;
    background: #f5f5f5;
    padding: 4px 8px;
    border-radius: 4px;
}

.product-price {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin-bottom: 12px;
}

.price-label {
    font-size: 12px;
    color: #999;
}

.price-value {
    font-size: 24px;
    font-weight: 600;
    color: #ff4d4f;
}

.price-unit {
    font-size: 12px;
    color: #999;
}

.product-actions {
    margin-top: 12px;
}

/* ========================================
   产品详情页
   ======================================== */
.product-detail-section {
    padding: 40px 0;
}

.product-detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 30px;
}

.product-images .main-image {
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
}

.product-images .main-image img {
    width: 100%;
    height: auto;
    object-fit: contain;
    background: #fff;
}

.product-main-info {
    padding: 20px 0;
}

.product-name {
    font-size: 28px;
    margin-bottom: 16px;
}

.product-tags {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.tag {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
}

.tag-operator {
    background: #e6f7ff;
    color: #1890ff;
}

.tag-type {
    background: #f0f0f0;
    color: #666;
}

.product-price-box {
    background: #fff7e6;
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 24px;
    border: 2px solid #ffd591;
}

.price-main {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.price-main .price-value {
    font-size: 36px;
}

.product-highlights {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: #f8f9fa;
    border-radius: 8px;
}

.highlight-icon {
    font-size: 24px;
}

.highlight-label {
    font-size: 12px;
    color: #999;
}

.highlight-value {
    font-size: 18px;
    font-weight: 600;
    color: #333;
}

.action-tip {
    text-align: center;
    font-size: 13px;
    color: #52c41a;
    margin-top: 12px;
}

/* Tab样式 */
.product-detail-tabs {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 30px;
}

.tabs-nav {
    display: flex;
    border-bottom: 1px solid #f0f0f0;
}

.tab-btn {
    flex: 1;
    padding: 16px;
    background: none;
    border: none;
    font-size: 15px;
    font-weight: 500;
    color: #666;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.tab-btn:hover {
    color: #1890ff;
}

.tab-btn.active {
    color: #1890ff;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: #1890ff;
}

.tabs-content {
    padding: 30px;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.detail-section {
    margin-bottom: 30px;
}

.detail-section h3 {
    font-size: 20px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid #f0f0f0;
}

.detail-content {
    line-height: 1.8;
    color: #666;
}

.alert-warning {
    background: #fff7e6;
    border-left: 4px solid #faad14;
    padding: 12px 16px;
    border-radius: 4px;
    color: #d46b08;
}

.detail-table {
    width: 100%;
    border-collapse: collapse;
}

.detail-table tr {
    border-bottom: 1px solid #f0f0f0;
}

.detail-table td {
    padding: 12px;
}

.detail-table td:first-child {
    width: 120px;
    color: #999;
    font-weight: 500;
}

.detail-images img {
    width: 100%;
    margin-bottom: 16px;
    border-radius: 8px;
}

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

.faq-item {
    padding: 20px;
    background: #f8f9fa;
    border-radius: 8px;
}

.faq-item h4 {
    font-size: 16px;
    margin-bottom: 8px;
    color: #333;
}

.faq-item p {
    color: #666;
    line-height: 1.6;
}

.related-products {
    margin-top: 40px;
}

.related-products h2 {
    font-size: 24px;
    margin-bottom: 24px;
}

/* ========================================
   分页样式
   ======================================== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
}

.page-btn {
    padding: 8px 16px;
    background: #fff;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s;
}

.page-btn:hover {
    border-color: #1890ff;
    color: #1890ff;
}

.page-btn.active {
    background: #1890ff;
    border-color: #1890ff;
    color: #fff;
    font-weight: 600;
}

.page-info {
    margin-left: 20px;
    color: #666;
    font-size: 14px;
}

/* ========================================
   筛选侧边栏
   ======================================== */
.products-list-section {
    background: #f8f9fa;
}

.products-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 30px;
    margin-top: 30px;
}

.filter-sidebar {
    position: sticky;
    top: 80px;
    height: fit-content;
}

.filter-card {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.filter-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.filter-header h3 {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
}

.btn-reset {
    color: #1890ff;
    font-size: 14px;
}

.btn-reset:hover {
    color: #40a9ff;
}

.filter-section {
    margin-bottom: 25px;
}

.filter-section:last-child {
    margin-bottom: 0;
}

.filter-section h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #333;
}

.search-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #d9d9d9;
    border-radius: 6px;
    font-size: 14px;
}

.search-input:focus {
    border-color: #1890ff;
    outline: none;
    box-shadow: 0 0 0 2px rgba(24,144,255,0.1);
}

.filter-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-option {
    padding: 10px 12px;
    background: #f8f9fa;
    border-radius: 6px;
    color: #333;
    text-decoration: none;
    transition: all 0.3s;
    font-size: 14px;
}

.filter-option:hover {
    background: #e6f7ff;
    color: #1890ff;
}

.filter-option.active {
    background: #1890ff;
    color: #fff;
    font-weight: 500;
}

/* ========================================
   排序栏
   ======================================== */
.sort-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: #fff;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.sort-info strong {
    color: #1890ff;
    font-weight: 600;
}

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

.sort-btn {
    padding: 6px 12px;
    background: #f0f0f0;
    border-radius: 4px;
    color: #666;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s;
}

.sort-btn:hover {
    background: #e6f7ff;
    color: #1890ff;
}

.sort-btn.active {
    background: #1890ff;
    color: #fff;
}

/* ========================================
   排行榜
   ======================================== */
.ranking-section {
    padding: 40px 0;
}

.ranking-tabs {
    display: flex;
    gap: 16px;
    margin: 30px 0;
    justify-content: center;
}

.ranking-tabs .tab {
    padding: 12px 24px;
    background: #fff;
    border-radius: 8px;
    color: #666;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.ranking-tabs .tab:hover {
    color: #1890ff;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.ranking-tabs .tab.active {
    background: #1890ff;
    color: #fff;
}

.ranking-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ranking-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    transition: all 0.3s;
}

.ranking-item:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.rank-number {
    font-size: 24px;
    font-weight: 700;
    color: #999;
    min-width: 40px;
    text-align: center;
}

.ranking-item.top-1 .rank-number {
    color: #ff4d4f;
}

.ranking-item.top-2 .rank-number {
    color: #ff7a45;
}

.ranking-item.top-3 .rank-number {
    color: #ffa940;
}

.ranking-item .product-image {
    width: 100px;
    height: 75px;
    padding-top: 0;
}

.ranking-item .product-info {
    flex: 1;
    padding: 0;
}

.ranking-item .product-info h3 {
    font-size: 16px;
    margin-bottom: 8px;
}

.product-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: #666;
}

.ranking-item .product-price {
    margin: 0;
}

.ranking-item .product-action {
    margin-left: auto;
}

/* ========================================
   FAQ页面
   ======================================== */
.faq-section {
    padding: 40px 0;
}

.faq-section h1 {
    font-size: 32px;
    margin-bottom: 40px;
    text-align: center;
}

.faq-categories {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.faq-category {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.faq-category h2 {
    font-size: 24px;
    margin-bottom: 24px;
    color: #333;
    border-bottom: 2px solid #f0f0f0;
    padding-bottom: 12px;
}

/* ========================================
   404页面
   ======================================== */
.error-page {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.error-code {
    font-size: 120px;
    font-weight: 700;
    color: #1890ff;
    line-height: 1;
    margin-bottom: 20px;
}

.error-title {
    font-size: 32px;
    margin-bottom: 16px;
}

.error-message {
    font-size: 16px;
    color: #666;
    margin-bottom: 32px;
}

.error-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* ========================================
   SEO内容
   ======================================== */
.seo-content-section {
    background: #fff;
    padding: 40px 0;
    margin-top: 40px;
}

.seo-content {
    max-width: 800px;
    margin: 0 auto;
}

.seo-content h2 {
    font-size: 28px;
    margin-bottom: 20px;
}

.seo-content h3 {
    font-size: 22px;
    margin: 30px 0 16px;
}

.seo-content p {
    line-height: 1.8;
    color: #666;
    margin-bottom: 16px;
}

/* ========================================
   底部
   ======================================== */
.site-footer {
    background: #001529;
    color: #fff;
    padding: 40px 0 20px;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h4 {
    font-size: 16px;
    margin-bottom: 16px;
}

.footer-section p {
    color: rgba(255,255,255,0.65);
    line-height: 1.6;
}

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

.footer-section li {
    margin-bottom: 8px;
}

.footer-section a {
    color: rgba(255,255,255,0.65);
}

.footer-section a:hover {
    color: #fff;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.45);
}


/* ========================================
   响应式
   ======================================== */
@media (max-width: 992px) {
    .products-layout {
        grid-template-columns: 1fr;
    }
    
    .filter-sidebar {
        position: static;
    }
    
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        flex-direction: column;
        padding: 20px;
        gap: 16px;
    }
    
    .main-nav.mobile-active {
        display: flex;
    }
    
    .header-actions {
        display: none;
    }
    
    .header-actions.mobile-active {
        display: block;
        position: static;
        background: #f8f9fa;
        padding: 16px 20px;
        border-top: 1px solid #f0f0f0;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .site-header {
        position: relative;
    }
    
    .product-detail-content {
        grid-template-columns: 1fr;
    }
    
    .product-highlights {
        grid-template-columns: 1fr;
    }
    
    .promotion-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .promotion-benefits {
        grid-template-columns: 1fr;
    }
    
    .promotion-stats {
        justify-content: center;
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        flex-direction: column;
        gap: 30px;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 768px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .pagination {
        flex-wrap: wrap;
        gap: 6px;
    }
    
    .page-info {
        width: 100%;
        text-align: center;
        margin: 10px 0 0 0;
    }
    
    .promotion-title {
        font-size: 32px;
    }
    
    .promotion-subtitle {
        font-size: 16px;
    }
    
    .promotion-actions {
        flex-direction: column;
    }
    
    .promotion-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .section-header h1,
    .section-header h2 {
        font-size: 28px;
    }
    
    .ranking-item {
        flex-wrap: wrap;
    }
    
    .ranking-item .product-action {
        width: 100%;
        margin-left: 0;
        margin-top: 12px;
    }
    
    .error-code {
        font-size: 80px;
    }
}