/* 
 * 速八建站 - 现代化静态网站样式
 * 基于 Bootstrap 4 框架
 */

/* ==================== 基础样式 ==================== */
:root {
    --primary-color: #0382db;
    --primary-hover: #026ab3;
    --secondary-color: #1ab394;
    --dark-color: #323436;
    --text-color: #333;
    --text-light: #666;
    --text-muted: #999;
    --border-color: #e5e5e5;
    --bg-light: #f8f8f8;
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.15);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 14px;
    color: var(--text-color);
    line-height: 1.6;
    background-color: #fff;
    overflow-x: hidden;
}

a {
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

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

ul, ol {
    list-style: none;
}

/* ==================== 工具类 ==================== */
.wrap {
    max-width: 1400px;
    width: 95%;
    margin: 0 auto;
}

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

.fl { float: left; }
.fr { float: right; }
.clearfix::after {
    content: '';
    display: table;
    clear: both;
}

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }

.hide { display: none !important; }

.blank10 { height: 10px; clear: both; }
.blank15 { height: 15px; clear: both; }
.blank20 { height: 20px; clear: both; }
.blank25 { height: 25px; clear: both; }
.blank30 { height: 30px; clear: both; }
.blank50 { height: 50px; clear: both; }

/* ==================== 页面标题 ==================== */
.page-title {
    font-size: 32px;
    color: var(--text-color);
    margin-bottom: 10px;
}

.page-brief {
    font-size: 14px;
    color: var(--text-muted);
}

.section-title {
    font-size: 36px;
    color: var(--text-color);
    margin-bottom: 10px;
}

.section-brief {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 30px;
}

/* ==================== 头部导航 ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: #fff;
    z-index: 1000;
    transition: var(--transition);
    box-shadow: 0 1px 5px rgba(0, 0, 0, 0.1);
}

.header.scrolled {
    height: 60px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

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

.logo img {
    height: 50px;
    transition: var(--transition);
}

.header.scrolled .logo img {
    height: 40px;
}

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

.nav-item {
    position: relative;
    margin: 0 5px;
}

.nav-item > a {
    display: block;
    padding: 10px 20px;
    font-size: 16px;
    color: var(--text-color);
    border-radius: var(--radius);
    transition: var(--transition);
}

.nav-item > a:hover,
.nav-item > a.active {
    color: var(--primary-color);
    background: rgba(3, 130, 219, 0.1);
}

.nav-item .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 160px;
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
    padding: 10px 0;
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 10px 20px;
    color: var(--text-color);
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

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

.btn-login {
    padding: 8px 20px;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    transition: var(--transition);
}

.btn-login:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-register {
    padding: 8px 20px;
    color: #fff;
    background: var(--primary-color);
    border-radius: var(--radius);
    transition: var(--transition);
}

.btn-register:hover {
    background: var(--primary-hover);
    color: #fff;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-color);
    position: absolute;
    left: 8px;
    transition: var(--transition);
}

.menu-toggle span:nth-child(1) { top: 12px; }
.menu-toggle span:nth-child(2) { top: 19px; }
.menu-toggle span:nth-child(3) { top: 26px; }

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg);
    top: 19px;
}

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg);
    top: 19px;
}

/* 头部占位 */
.header-blank {
    height: 80px;
}

/* ==================== Banner 轮播 ==================== */
.banner {
    position: relative;
    overflow: hidden;
}

.banner-slider {
    position: relative;
    width: 100%;
}

.banner-slide {
    display: none;
    width: 100%;
}

.banner-slide.active {
    display: block;
}

.banner-slide img {
    width: 100%;
    display: block;
}

.banner-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.banner-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition);
}

.banner-dot.active {
    background: #fff;
    transform: scale(1.2);
}

/* ==================== 体验区域 ==================== */
.experience-section {
    padding: 60px 0;
    background: var(--bg-light);
}

.experience-box {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.experience-item {
    padding: 30px;
    border-radius: var(--radius-lg);
    color: #fff;
    text-align: center;
    transition: var(--transition);
}

.experience-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.experience-item.blue { background: linear-gradient(135deg, #0099FF, #0066CC); }
.experience-item.purple { background: linear-gradient(135deg, #9999FF, #6666CC); }
.experience-item.green { background: linear-gradient(135deg, #009900, #006600); }

.experience-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
}

.experience-item p {
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 20px;
}

.experience-item .btn {
    display: inline-block;
    padding: 10px 30px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid #fff;
    border-radius: 25px;
    color: #fff;
    transition: var(--transition);
}

.experience-item .btn:hover {
    background: #fff;
    color: var(--primary-color);
}

/* ==================== 产品/模板区域 ==================== */
.products-section {
    padding: 60px 0;
}

.category-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin: 30px 0;
}

.category-tab {
    padding: 12px 30px;
    background: #f1f1f1;
    border-radius: var(--radius);
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
}

.category-tab:hover,
.category-tab.active {
    background: var(--primary-color);
    color: #fff;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.product-cover {
    position: relative;
    overflow: hidden;
    padding-top: 75%;
}

.product-cover img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

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

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-actions {
    display: flex;
    gap: 15px;
}

.product-actions .btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    transition: var(--transition);
}

.product-actions .btn:hover {
    background: var(--primary-color);
    color: #fff;
}

.product-actions .btn.green {
    color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.product-actions .btn.green:hover {
    background: var(--secondary-color);
    color: #fff;
}

.product-info {
    padding: 20px;
}

.product-name {
    font-size: 16px;
    color: var(--text-color);
    margin-bottom: 5px;
}

.product-category {
    font-size: 14px;
    color: var(--text-muted);
}

/* 查看更多按钮 */
.more-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: var(--radius);
    color: #fff;
    margin-top: 30px;
    transition: var(--transition);
}

.more-btn:hover {
    background: var(--primary-hover);
    color: #fff;
    transform: scale(1.1);
}

/* ==================== 合作客户 ==================== */
.clients-section {
    padding: 60px 0;
    background: var(--bg-light);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.client-item {
    background: #fff;
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.client-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow);
}

.client-item img {
    max-height: 60px;
    filter: grayscale(100%);
    transition: var(--transition);
}

.client-item:hover img {
    filter: grayscale(0%);
}

/* ==================== 新闻区域 ==================== */
.news-section {
    padding: 60px 0;
}

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

.news-item {
    display: flex;
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.news-item:hover {
    box-shadow: var(--shadow-hover);
}

.news-date {
    min-width: 100px;
    padding: 20px;
    background: var(--primary-color);
    color: #fff;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-date .day {
    font-size: 36px;
    font-weight: bold;
    line-height: 1;
}

.news-date .year {
    font-size: 14px;
    margin-top: 5px;
}

.news-content {
    padding: 20px;
    flex: 1;
}

.news-title {
    font-size: 18px;
    color: var(--text-color);
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-title a:hover {
    color: var(--primary-color);
}

.news-desc {
    font-size: 14px;
    color: var(--text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ==================== CTA 区域 ==================== */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color), #0066cc);
    text-align: center;
}

.cta-title {
    font-size: 36px;
    color: #fff;
    margin-bottom: 20px;
}

.cta-btn {
    display: inline-block;
    padding: 15px 50px;
    background: #fff;
    color: var(--primary-color);
    font-size: 18px;
    border-radius: 30px;
    transition: var(--transition);
}

.cta-btn:hover {
    background: var(--dark-color);
    color: #fff;
}

/* ==================== 价格套餐 ==================== */
.pricing-section {
    padding: 60px 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.pricing-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

.pricing-card.featured {
    border: 2px solid var(--secondary-color);
    transform: scale(1.05);
}

.pricing-card.featured::before {
    content: '推荐';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--secondary-color);
    color: #fff;
    padding: 5px 20px;
    border-radius: 20px;
    font-size: 12px;
}

.pricing-card:hover {
    box-shadow: var(--shadow-hover);
}

.pricing-name {
    font-size: 24px;
    color: var(--text-color);
    margin-bottom: 15px;
}

.pricing-price {
    font-size: 48px;
    font-weight: bold;
    color: var(--secondary-color);
    margin-bottom: 5px;
}

.pricing-price span {
    font-size: 16px;
    font-weight: normal;
}

.pricing-period {
    color: var(--text-muted);
    margin-bottom: 20px;
}

.pricing-features {
    text-align: left;
    margin-bottom: 20px;
}

.pricing-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features i {
    margin-right: 10px;
}

.pricing-features .fa-check {
    color: var(--secondary-color);
}

.pricing-features .fa-times {
    color: #ccc;
}

.pricing-btn {
    display: block;
    width: 100%;
    padding: 12px;
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
}

.pricing-btn.primary {
    background: var(--secondary-color);
    color: #fff;
}

.pricing-btn.primary:hover {
    background: #148f75;
    color: #fff;
}

.pricing-btn.default {
    background: #f1f1f1;
    color: var(--text-color);
}

.pricing-btn.default:hover {
    background: var(--primary-color);
    color: #fff;
}

/* ==================== 页脚 ==================== */
.footer {
    background: var(--dark-color);
    padding: 50px 0 0;
    color: #888;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    padding-bottom: 30px;
}

.footer-title {
    font-size: 18px;
    color: #fff;
    margin-bottom: 20px;
}

.footer-hotline {
    font-size: 36px;
    color: #fff;
    margin: 15px 0;
}

.footer-address {
    font-size: 14px;
    line-height: 1.8;
}

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

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

.social-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    transition: var(--transition);
}

.social-icon.qq {
    background: #12b7f5;
}

.social-icon.wechat {
    background: #24b727;
}

.social-icon i {
    font-size: 24px;
    color: #fff;
}

.social-item:hover .social-icon {
    transform: scale(1.1);
}

.footer-bottom {
    background: #222;
    padding: 15px 0;
}

.footer-bottom .wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-links a {
    color: #555;
    margin-right: 15px;
}

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

.footer-copyright {
    color: #555;
}

.footer-copyright a {
    color: inherit;
}

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

/* ==================== 侧边栏浮动 ==================== */
.sidebar-float {
    position: fixed;
    right: 0;
    bottom: 30%;
    z-index: 999;
}

.sidebar-item {
    position: relative;
}

.sidebar-btn {
    width: 50px;
    height: 50px;
    background: rgba(30, 30, 30, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.sidebar-btn i {
    font-size: 20px;
    color: #fff;
}

.sidebar-btn.orange { background: #ffbe33; }
.sidebar-btn.blue { background: #3da8e5; }
.sidebar-btn.green { background: #24b727; }

.sidebar-btn:hover {
    opacity: 0.9;
}

.sidebar-panel {
    position: absolute;
    right: 60px;
    top: 0;
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 15px;
    display: none;
    min-width: 150px;
}

.sidebar-item:hover .sidebar-panel {
    display: block;
}

/* ==================== 新闻列表页 ==================== */
.news-list-page {
    padding: 40px 0;
}

.news-list-item {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.news-list-item:hover {
    box-shadow: var(--shadow-hover);
}

.news-list-item .row {
    display: flex;
    align-items: center;
}

.news-list-date {
    text-align: center;
    padding: 15px;
}

.news-list-date .day {
    font-size: 36px;
    font-weight: bold;
    color: var(--secondary-color);
}

.news-list-date .month {
    color: var(--text-muted);
}

.news-list-content h4 {
    margin-bottom: 10px;
}

.news-list-content h4 a {
    color: var(--text-color);
}

.news-list-content h4 a:hover {
    color: var(--primary-color);
}

.news-list-content p {
    color: var(--text-muted);
    margin: 0;
}

/* ==================== 分页 ==================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 5px;
    margin-top: 30px;
}

.pagination .page-item {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    border-radius: var(--radius);
    color: var(--text-color);
    transition: var(--transition);
}

.pagination .page-item:hover,
.pagination .page-item.active {
    background: var(--primary-color);
    color: #fff;
}

/* ==================== 关于我们页面 ==================== */
.about-section {
    padding: 60px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-text h3 {
    font-size: 28px;
    margin-bottom: 20px;
}

.about-text p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 15px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
}

.stat-number {
    font-size: 48px;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-label {
    color: var(--text-muted);
    margin-top: 10px;
}

/* ==================== 下载页面 ==================== */
.download-section {
    padding: 60px 0;
}

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

.download-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.download-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), #0066cc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.download-icon i {
    font-size: 36px;
    color: #fff;
}

.download-card h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

.download-card p {
    color: var(--text-muted);
    margin-bottom: 20px;
}

.download-btn {
    display: inline-block;
    padding: 12px 40px;
    background: var(--primary-color);
    color: #fff;
    border-radius: var(--radius);
    transition: var(--transition);
}

.download-btn:hover {
    background: var(--primary-hover);
    color: #fff;
}

/* ==================== 加盟页面 ==================== */
.agent-section {
    padding: 60px 0;
}

.agent-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.agent-feature {
    text-align: center;
    padding: 30px 20px;
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.agent-feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.agent-feature i {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.agent-feature h4 {
    font-size: 18px;
    margin-bottom: 10px;
}

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

/* ==================== 响应式设计 ==================== */
@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-card.featured {
        transform: none;
    }
}

@media (max-width: 992px) {
    .header {
        height: 60px;
    }
    
    .header-blank {
        height: 60px;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow);
        transform: translateX(100%);
        transition: var(--transition);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-item {
        width: 100%;
        margin: 0;
    }
    
    .nav-item > a {
        padding: 15px 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-item .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding-left: 20px;
        display: none;
    }
    
    .nav-item:hover .dropdown-menu {
        display: block;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .header-user {
        display: none;
    }
    
    .experience-box {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .clients-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .agent-features {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 28px;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .download-grid {
        grid-template-columns: 1fr;
    }
    
    .agent-features {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom .wrap {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        margin-bottom: 10px;
    }
}

@media (max-width: 480px) {
    .wrap {
        width: 100%;
        padding: 0 15px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .pricing-price {
        font-size: 36px;
    }
    
    .footer-hotline {
        font-size: 24px;
    }
}

/* ==================== 动画效果 ==================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }