/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #0f172a;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius: 8px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

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

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    outline: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-full {
    width: 100%;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}



.logo-img {
    width: 40px;
    height: 40px;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-buttons {
    display: flex;
    gap: 16px;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition);
}

/* 主页横幅 */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 24px;
}

.highlight {
    color: var(--accent-color);
}

.hero-subtitle {
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 32px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 32px;
}

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

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: var(--accent-color);
}

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

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.dashboard-img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow-xl);
}

/* 章节标题 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 功能特性 */
.features {
    padding: 80px 0;
    background-color: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.feature-card {
    background-color: var(--bg-primary);
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.feature-icon i {
    font-size: 32px;
    color: white;
}

.feature-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 解决方案 */
.solutions {
    padding: 80px 0;
}

.solutions-tabs {
    max-width: 1000px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 12px 24px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

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

.tab-content {
    position: relative;
}

.tab-pane {
    display: none;
}

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

.solution-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.solution-text h3 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.solution-text p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.solution-text ul {
    list-style: none;
}

.solution-text li {
    padding: 8px 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 24px;
}

.solution-text li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.solution-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

/* 价格方案 */
.pricing {
    padding: 80px 0;
    background-color: var(--bg-secondary);
}

/* 月付年付切换样式 */
.pricing-toggle {
    text-align: center;
    margin-bottom: 48px;
}

.toggle-container {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    background-color: var(--bg-primary);
    padding: 8px;
    border-radius: 50px;
    box-shadow: var(--shadow-sm);
}

.toggle-label {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.save-badge {
    background-color: var(--accent-color);
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 32px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    transition: var(--transition);
    border-radius: 32px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 24px;
    width: 24px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: var(--transition);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--primary-color);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(28px);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    background-color: var(--bg-primary);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    border: 2px solid transparent;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: white;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 32px;
}

.plan-name {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.price {
    margin-bottom: 12px;
    transition: transform 0.2s ease;
}

.currency {
    font-size: 20px;
    color: var(--text-secondary);
}

.amount {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.period {
    font-size: 16px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.plan-description {
    color: var(--text-secondary);
    font-size: 14px;
}

.pricing-features {
    margin-bottom: 32px;
}

.pricing-features ul {
    list-style: none;
}

.pricing-features li {
    padding: 8px 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.pricing-features i {
    color: var(--primary-color);
    font-size: 14px;
}

.pricing-note {
    text-align: center;
    margin-top: 48px;
    color: var(--text-secondary);
    font-size: 14px;
}

.pricing-note p {
    margin: 8px 0;
}

/* 成功案例 */
.cases {
    padding: 80px 0;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.case-card {
    background-color: var(--bg-primary);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.case-image {
    height: 200px;
    overflow: hidden;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.case-card:hover .case-image img {
    transform: scale(1.1);
}

.case-content {
    padding: 24px;
}

.case-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.case-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.case-stats {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.case-stat {
    background-color: var(--bg-secondary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 关于我们 */
.about {
    padding: 80px 0;
    background-color: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-description {
    font-size: 18px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.about-feature {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.about-feature i {
    width: 48px;
    height: 48px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.about-feature h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.about-feature p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.about-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

/* 联系我们 */
.contact {
    padding: 80px 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-item i {
    width: 48px;
    height: 48px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.contact-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.contact-form {
    background-color: transparent;
    padding: 0;
    border-radius: var(--radius);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 16px;
    transition: var(--transition);
    background-color: var(--bg-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}



.form-group select {
    width: 100%;
    padding: 12px 16px;
    padding-right: 40px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 16px;
    transition: var(--transition);
    background-color: var(--bg-primary);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 12px center;
    background-repeat: no-repeat;
    background-size: 16px;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.btn-loading {
    display: none;
}

.btn-loading i {
    margin-right: 8px;
}

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

.footer-content {
    display: grid;
    grid-template-columns: 1fr repeat(3, minmax(0, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

/* 确保前三个内容块(产品功能、解决方案、支持服务)并排显示 */
.footer-content > .footer-section:nth-child(2),
.footer-content > .footer-section:nth-child(3),
.footer-content > .footer-section:nth-child(4) {
    min-width: 0;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-description {
    color: #94a3b8;
    line-height: 1.6;
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: #334155;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
}

.footer-section h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
}

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

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

.footer-section a {
    color: #94a3b8;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 20px;
    text-align: center;
    color: #94a3b8;
}

.footer-bottom a {
    color: #94a3b8;
    text-decoration: none;
    margin: 0 8px;
}

.footer-bottom a:hover {
    color: white;
}

/* 页脚布局优化 */
/* 桌面端布局优化 (大于1024px) */
@media (min-width: 1025px) {
    .footer-content {
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
        align-items: start;
    }
    
    /* 优化产品功能、解决方案、支持服务三个内容块的间距 */
    .footer-content > .footer-section:nth-child(2),
    .footer-content > .footer-section:nth-child(3),
    .footer-content > .footer-section:nth-child(4) {
        padding-left: 20px;
    }
}

/* 平板端布局 (小于等于1024px) */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 30px;
    }
}

/* 移动端布局优化 */
@media (max-width: 768px) {
    .footer {
        padding: 40px 0 16px;
    }

    .footer-content {
        display: block;
        text-align: center;
        padding: 0 5%;
        font-size: 0;
    }

    /* 第一个section（logo区域）独占一行 */
    .footer-content > .footer-section:first-child {
        margin-bottom: 30px;
        text-align: center;
        font-size: initial;
    }

    /* 产品功能、解决方案、支持服务三个内容块横向排列并均匀分布 */
    .footer-content > .footer-section:nth-child(2),
    .footer-content > .footer-section:nth-child(3),
    .footer-content > .footer-section:nth-child(4) {
        display: inline-block;
        width: 26%;
        vertical-align: top;
        margin: 0 1%;
        text-align: left;
        font-size: initial;
        box-sizing: border-box;
    }
    
    /* 第一个内容块设置左边距实现平移 */
    .footer-content > .footer-section:nth-child(2) {
        margin-left: 10%;
    }
    
    /* 第二个和第三个内容块保持正常间距 */
    .footer-content > .footer-section:nth-child(3),
    .footer-content > .footer-section:nth-child(4) {
        margin-left: 1%;
    }

    .footer-logo {
        justify-content: center;
        margin-bottom: 16px;
    }

    .footer-description {
        font-size: 14px;
        margin-bottom: 20px;
        text-align: center;
    }

    .social-links {
        justify-content: center;
        margin-bottom: 20px;
    }

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

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

    .footer-section a {
        font-size: 13px;
        line-height: 1.4;
    }

    .footer-bottom {
        padding-top: 16px;
        font-size: 12px;
    }

    .footer-bottom a {
        margin: 0 6px;
        font-size: 12px;
    }
}

/* 小屏幕移动端优化 */
@media (max-width: 480px) {
    .footer {
        padding: 30px 0 12px;
    }

    .footer-content {
        display: block;
        text-align: center;
        padding: 0 3%;
        font-size: 0;
    }

    /* 第一个section（logo区域）独占一行 */
    .footer-content > .footer-section:first-child {
        margin-bottom: 25px;
        text-align: center;
        font-size: initial;
    }

    /* 产品功能、解决方案、支持服务三个内容块横向排列并均匀分布 */
    .footer-content > .footer-section:nth-child(2),
    .footer-content > .footer-section:nth-child(3),
    .footer-content > .footer-section:nth-child(4) {
        display: inline-block;
        width: 26%;
        vertical-align: top;
        margin: 0 1%;
        text-align: left;
        font-size: initial;
        box-sizing: border-box;
    }
    
    /* 第一个内容块设置左边距实现平移 */
    .footer-content > .footer-section:nth-child(2) {
        margin-left: 8%;
    }
    
    /* 第二个和第三个内容块保持正常间距 */
    .footer-content > .footer-section:nth-child(3),
    .footer-content > .footer-section:nth-child(4) {
        margin-left: 1%;
    }

    .footer-logo img {
        width: 30px;
        height: 30px;
    }

    .logo-text {
        font-size: 20px;
    }

    .footer-description {
        font-size: 13px;
        margin-bottom: 16px;
        text-align: center;
    }

    .social-links a {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    .footer-section h4 {
        font-size: 14px;
        margin-bottom: 12px;
        color: white;
    }

    .footer-section li {
        margin-bottom: 6px;
    }

    .footer-section a {
        font-size: 12px;
        line-height: 1.3;
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: 20px 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-buttons {
        display: none;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-title {
        font-size: 36px;
        line-height: 1.5;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-stats {
        justify-content: center;
    }

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

    .solution-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .pricing-toggle {
        margin-bottom: 32px;
    }
    
    .toggle-container {
        flex-direction: row;
        gap: 12px;
        padding: 12px;
        flex-wrap: wrap;
        justify-content: center;
    }

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

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-form {
        padding: 0;
    }
    
    .form-group select {
        font-size: 14px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .container {
        padding: 0 16px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 0 60px;
    }

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

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

    .feature-card,
    .pricing-card,
    .case-card {
        padding: 24px;
    }

    .tab-buttons {
        flex-direction: column;
        align-items: center;
    }

    .tab-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .pricing-toggle {
        margin-bottom: 24px;
    }
    
    .toggle-container {
        padding: 8px;
        gap: 8px;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .toggle-label {
        font-size: 12px;
    }
    
    .save-badge {
        font-size: 10px;
        padding: 1px 6px;
    }
    
    .amount {
        font-size: 36px;
    }
    
    .period {
        font-size: 14px;
    }
}

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

.feature-card,
.pricing-card,
.case-card {
    animation: fadeInUp 0.6s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}