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

:root {
    --primary: #0989ee;
    --primary-light: #e6f2fc;
    --primary-dark: #076bc9;
    --secondary: #cc3333;
    --secondary-light: #fce8e8;
    --text-dark: #1d2129;
    --text-medium: #4e5969;
    --text-light: #86909c;
    --bg-light: #f2f3f5;
    --white: #ffffff;
    --border: #e5e6eb;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.12);
    --radius: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --section-margin: 100px 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--white);
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 16px;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(9, 137, 238, 0.3);
}

.btn-primary.active,
.btn-primary:focus {
    color: var(--white);
    outline: 2px solid rgba(9, 137, 238, 0.3);
}

/* 确保立即下载按钮文字始终为白色 */
.btn-primary:active,
.btn-primary:visited {
    color: var(--white) !important;
}

.btn-secondary {
    background-color: var(--white);
    color: var(--primary);
    border: 1px solid var(--primary);
}

.btn-secondary:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
}

.section {
    margin: var(--section-margin);
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
    text-align: center;
    color: var(--text-dark);
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-medium);
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

/* 通用卡片过渡效果 */
.feature-card,
.pricing-card,
.download-item,
.faq-item {
    transition: var(--transition);
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--white);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: var(--transition);
    height: 80px;
}

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

.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    z-index: 1001;
    /* 确保LOGO不被菜单遮挡 */
}

.logo img {
    width: 36px;
    height: 36px;
    margin-right: 10px;
}

.main-nav {
    display: flex;
    list-style: none;
    margin: 0 auto;
    /* 导航整体居中 */
}

.main-nav li {
    margin-left: 50px;
    /* 增大导航间距 */
    position: relative;
}

.main-nav li:first-child {
    margin-left: 0;
}

/* New标签样式 - 优化位置 */
.new-tag {
    position: absolute;
    top: 20%;
    transform: translateY(-50%);
    left: calc(100% + 3px);
    /* 紧挨着文字右侧 */
    background-color: var(--secondary);
    color: white;
    font-size: 8px;
    padding: 1px 5px;
    border-radius: 4px;
    font-weight: 600;
    white-space: nowrap;
}

.main-nav a {
    font-weight: 500;
    color: var(--text-medium);
    padding: 8px 0;
    position: relative;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary);
}

.main-nav a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary);
    border-radius: 3px;
}

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

.mobile-menu-toggle {
    display: none;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--text-dark);
    margin: 6px 0;
    border-radius: 3px;
    transition: var(--transition);
}

.mobile-menu {
    position: fixed;
    top: 80px;
    /* 显示在LOGO下方 */
    left: 0;
    right: 0;
    height: 0;
    background-color: var(--white);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition);
    overflow: hidden;
}

.mobile-menu.active {
    height: auto;
    padding: 20px 0;
    max-height: calc(100vh - 80px);
}

.mobile-menu ul {
    list-style: none;
    padding: 0 20px;
}

/* 移动端导航菜单 - 增大点击区域 */
.mobile-menu li {
    margin-bottom: 10px;
    position: relative;
}

.mobile-menu a {
    font-size: 18px;
    font-weight: 500;
    /* color: var(--text-dark); */
    display: block;
    padding: 15px 10px;
    /* 增加内边距，扩大点击区域 */
    border-radius: var(--radius);
    transition: var(--transition);
}

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

/* 移动端New标签样式优化 */
.mobile-menu li {
    position: relative;
    /* 为New标签预留空间 */
    /* padding-right: 40px;  */
}

.mobile-menu .new-tag {
    position: absolute;
    top: 50%;
    font-size: 10px;
    /* right: 100px; */
    transform: translateY(-50%);
    left: 50px;
    margin-left: 5px;
}

.mobile-menu a.active {
    color: var(--primary);
    background-color: var(--primary-light);
}

/* 移动端立即下载按钮 - 整行显示 */
.mobile-download-btn {
    padding: 0 20px;
    margin-top: 15px;
}

.mobile-download-btn .btn-primary {
    display: block;
    width: 100%;
    padding: 14px;
    font-size: 17px;
    color: var(--white) !important;
}

/* 英雄区域样式 */
.hero {
    padding: 120px 0 80px;
    /* 减小上边距 */
    background-color: var(--primary-light);
    background-image:
        radial-gradient(circle at 10% 20%, rgba(9, 137, 238, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(9, 137, 238, 0.05) 0%, transparent 20%);
    text-align: center;
    margin-top: 20px;
}

.hero-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 24px;
    line-height: 1.2;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-title span {
    color: var(--primary);
}

.hero-desc {
    font-size: 20px;
    color: var(--text-medium);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 60px;
}

.hero-image {
    max-width: 800px;
    margin: 0 auto;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* 核心功能样式 */
.features {
    background-color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

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

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

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
    color: var(--primary);
    background-color: var(--primary-light);
}

.feature-icon img {
    width: 40px;
}

.feature-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
}

.feature-desc {
    color: var(--text-medium);
    font-size: 16px;
}

/* APP展示板块样式 */
.app-showcase {
    background-color: var(--bg-light);
    padding: 60px 0;
}

.carousel-container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
}

.carousel-wrapper {
    display: flex;
    width: 100%;
    transition: transform 0.5s ease-in-out;
}

.carousel {
    display: flex;
    width: 100%;
    flex-shrink: 0;
}

.carousel-item {
    min-width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.carousel-image {
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
    box-shadow: var(--shadow);
    border-radius: 30px;
    overflow: hidden;
    border: 8px solid var(--text-dark);
}

.carousel-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
}

.carousel-info {
    margin-top: 30px;
    text-align: center;
    max-width: 600px;
}

.carousel-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.carousel-desc {
    font-size: 16px;
    color: var(--text-medium);
}

/* 轮播按钮样式 - 模态化设计 */
.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(4px);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 10;
    font-size: 20px;
    color: var(--text-dark);
}

.carousel-control.prev {
    left: 20px;
}

.carousel-control.next {
    right: 20px;
}

.carousel-control:hover {
    background-color: var(--white);
    transform: translateY(-50%) scale(1.1);
    color: var(--primary);
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
}

.carousel-indicators button {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--border);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.carousel-indicators button.active {
    background-color: var(--primary);
    width: 30px;
    border-radius: 5px;
}

/* 价格板块样式 */
.pricing {
    background-color: var(--white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.pricing-card {
    background-color: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

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

.pricing-header {
    padding: 30px;
    background-color: var(--primary-light);
    text-align: center;
}

.pricing-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 10px;
}

/* 电脑端价格标签调整 - 减小尺寸 */
.pricing-price {
    font-size: 30px;
    /* 从36px减小到30px */
    font-weight: 700;
    color: var(--primary);
}

.pricing-period {
    color: var(--text-medium);
    font-size: 14px;
}

.pricing-features {
    padding: 30px;
}

.pricing-features h4 {
    font-size: 18px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.feature-list {
    list-style: none;
}

.feature-list li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.feature-list li::before {
    content: '✓';
    color: var(--primary);
    font-weight: bold;
    margin-right: 10px;
    margin-top: 3px;
}

.feature-list li.unsupported::before {
    content: '✗';
    color: var(--secondary);
}

.feature-list li.unsupported {
    color: var(--text-light);
    text-decoration: line-through;
}

.pricing-footer {
    padding: 0 30px 30px;
    text-align: center;
}

/* 常见问题样式 */
.faq {
    background-color: var(--bg-light);
    padding: 80px 0;
    /* 增加上下边距 */
    margin: 120px 0;
    /* 增加与其他板块的间距 */
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--white);
    border-radius: var(--radius);
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.faq-question {
    width: 100%;
    padding: 20px 25px;
    background: none;
    border: none;
    text-align: left;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--primary-light);
}

.faq-question::after {
    content: '+';
    font-size: 24px;
    font-weight: 300;
    color: var(--primary);
    transition: var(--transition);
}

.faq-question.active::after {
    content: '-';
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 25px;
    color: var(--text-medium);
    max-height: 0;
    overflow: hidden;
    transition: var(--transition);
}

.faq-answer.active {
    padding: 0 25px 20px;
    max-height: 500px;
}

/* 下载中心样式 */
.download {
    background-color: var(--white);
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.download-item {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 25px 20px;
    box-shadow: var(--shadow);
    text-align: center;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    height: 100%;
}

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

.download-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 24px;
    color: var(--primary);
    background-color: var(--primary-light);
}

.download-icon img {
    width: 40px;
}

.download-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 5px;
}

.download-desc {
    font-size: 14px;
    color: var(--text-medium);
}

/* 下载项内容容器 */
.download-content {
    transition: var(--transition);
}

/* 下载项悬停内容 */
.download-hover-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background-color: var(--white);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.download-item:hover .download-hover-content {
    opacity: 1;
    visibility: visible;
}

.download-item:hover .download-content {
    opacity: 0;
    visibility: hidden;
}

/* 开发中提示样式 */
.development-message {
    text-align: center;
    padding: 10px;
}

.development-message p {
    color: var(--secondary);
    font-weight: 600;
    margin-bottom: 10px;
}

.development-message small {
    color: var(--text-light);
    font-size: 12px;
}

/* 小程序码弹窗 */
.qr-popup {
    position: absolute;
    background-color: var(--white);
    padding: 10px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-hover);
    z-index: 100;
    display: none;
    animation: fadeIn 0.3s ease;
}

.qr-popup img {
    width: 140px;
    height: 140px;
    display: block;
}

.download-item.qr-trigger {
    position: relative;
}

.download-item.qr-trigger:hover .qr-popup {
    display: block;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 15px;
}

/* 开发中弹窗 - 模态化样式 */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--white);
    border-radius: var(--radius);
    width: 100%;
    max-width: 500px;
    padding: 30px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
    transform: translateY(20px) scale(0.95);
    transition: var(--transition);
}

.modal-backdrop.active .modal-content {
    transform: translateY(0) scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border);
}

.modal-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-dark);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-medium);
    transition: var(--transition);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: var(--secondary);
    background-color: var(--secondary-light);
}

.modal-body {
    margin-bottom: 30px;
}

.modal-body p {
    font-size: 16px;
    color: var(--text-medium);
    margin-bottom: 15px;
}

.modal-footer {
    text-align: right;
}

/* 页脚样式 */
.footer {
    background-color: var(--text-dark);
    color: var(--white);
    padding: 80px 0 40px;
}

.footer-container {
    display: grid;
    grid-template-columns: 1fr;
    /* 默认单列布局，移动端使用 */
    gap: 40px;
    margin-bottom: 60px;
}

/* 页脚布局优化 */
.footer-logo-col {
    grid-column: 1 / -1;
    /* 独占一行 */
}

.footer-product-col,
.footer-support-col {
    grid-column: span 1;
    /* 各占一列 */
}

.footer-contact-col {
    grid-column: 1 / -1;
    /* 独占一行 */
}

/* 桌面端页脚布局 */
@media (min-width: 768px) {
    .footer-container {
        grid-template-columns: 250px repeat(3, 1fr);
    }

    .footer-logo-col {
        grid-column: 1;
    }

    .footer-product-col {
        grid-column: 2;
    }

    .footer-support-col {
        grid-column: 3;
    }

    .footer-contact-col {
        grid-column: 4;
    }
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 20px;
}

.footer-logo img {
    width: 36px;
    height: 36px;
    margin-right: 10px;
}

.footer-desc {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 30px;
}

/* 页脚社交图标 */
.social-icons {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.social-icons .icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

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

.social-icon:hover {
    background-color: var(--primary);
    transform: translateY(-3px);
}

/* 移动端社交图标不显示二维码 */
@media (max-width: 768px) {
    .social-icon .qr-code {
        display: none !important;
    }
}

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

.footer-col h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background-color: var(--primary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.contact-info {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    color: rgba(255, 255, 255, 0.7);
}

.qr-container {
    position: relative;
    display: inline-block;
}

.qr-code {
    position: absolute;
    bottom: calc(100% + 10px);
    right: -50px;
    background-color: var(--white);
    padding: 10px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    z-index: 10;
    display: none;
    margin-bottom: 10px;
    animation: fadeIn 0.3s ease;
}

.qr-code img {
    width: 120px;
    height: 120px;
}

/* 仅在桌面端显示二维码 */
@media (min-width: 769px) {
    .qr-container:hover .qr-code {
        display: block;
    }
}

.copyright {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

.record-info {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.record-item {
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.record-item img {
    width: 25px;
    margin-right: 6px;
}

.record-item a {
    color: inherit;
    transition: var(--transition);
}

.record-item:hover a {
    color: var(--primary);
}

.record-item .national-emblem {
    width: 16px;
    height: 16px;
    margin-right: 5px;
}

/* 返回顶部按钮样式 */
.back-to-top {
    position: fixed;
    bottom: 110px;
    right: 35px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--primary);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 4px 12px rgba(9, 137, 238, 0.3);
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 900;
}

.back-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    background-color: var(--primary-dark);
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
    animation: fadeInUp 0.3s ease;
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease forwards;
}

.delay-100 {
    animation-delay: 0.1s;
}

.delay-200 {
    animation-delay: 0.2s;
}

.delay-300 {
    animation-delay: 0.3s;
}

.delay-400 {
    animation-delay: 0.4s;
}

.delay-500 {
    animation-delay: 0.5s;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .download-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .hero-title {
        font-size: 40px;
    }

    .section-title {
        font-size: 32px;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 768px) {

    .main-nav,
    .nav-download-btn {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    /* 移动端轮播图不显示左右按钮 */
    .carousel-control {
        display: none;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-desc {
        font-size: 18px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .download-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .section {
        margin: 80px 0;
    }

    .faq {
        padding: 60px 0;
        margin: 100px 0;
    }

    /* 移动端页脚布局 */
    .footer-container {
        grid-template-columns: 1fr 1fr;
    }

    .footer-logo-col {
        grid-column: 1 / 3;
        /* 横跨两列 */
    }

    .footer-product-col {
        grid-column: 1;
    }

    .footer-support-col {
        grid-column: 2;
    }

    .footer-contact-col {
        grid-column: 1 / 3;
        /* 横跨两列 */
    }

    .back-to-top {
        bottom: 100px;
        right: 30px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 100px 0 60px;
    }

    .hero-actions {
        flex-direction: column;
        gap: 15px;
        padding: 0 20px;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .section-title {
        font-size: 28px;
    }

    .section-subtitle {
        font-size: 16px;
    }

    .download-grid {
        grid-template-columns: 1fr;
    }

    .carousel-image {
        max-width: 250px;
    }

    .record-info {
        flex-direction: column;
        align-items: center;
        gap: 5px;
    }
}