:root {
    --primary: hsl(240, 5.9%, 10%);
    --secondary: hsl(240, 4.8%, 95.9%);
    --accent: hsl(240, 3.8%, 46.1%);
    --background: hsl(0, 0%, 100%);
    --foreground: hsl(240, 10%, 3.9%);
    --card: hsl(0, 0%, 100%);
    --card-foreground: hsl(240, 10%, 3.9%);
    --border: hsl(240, 5.9%, 90%);
    --radius: 0.5rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    line-height: 1.6;
    color: var(--foreground);
    background: var(--background);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* 导航栏样式 */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}

.nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
    gap: 2rem;
}

.logo {
    height: 4rem;
    display: flex;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--foreground);
    font-size: 1.15rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    transition: opacity 0.2s ease;
}

.logo-link:hover {
    opacity: 0.9;
}

.logo-image {
    height: 1.75rem;
    width: auto;
    object-fit: contain;
    border-radius: 6px;
    margin-right: 0.25rem;
}

.logo-text {
    font-weight: 600;
    font-size: 1.125rem;
    letter-spacing: -0.01em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    margin-right: auto;
}

.nav-links a {
    color: var(--foreground);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 400;
    transition: color 0.2s;
    padding: 0.5rem 0;
    position: relative;
    opacity: 0.85;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.2s ease;
}

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

.nav-links a:hover {
    opacity: 1;
    color: var(--primary);
}

.nav-auth {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.btn-text {
    background: transparent;
    color: var(--foreground);
    padding: 0.5rem 0.75rem;
    font-size: 0.95rem;
    font-weight: 400;
    transition: color 0.2s;
    opacity: 0.85;
}

.btn-text:hover {
    opacity: 1;
    color: var(--primary);
}

/* 响应式导航栏 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--background);
        padding: 1rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
        border-bottom: 1px solid var(--border);
    }

    .nav-auth {
        display: none;
    }

    /* 添加汉堡菜单按钮 */
    .nav-toggle {
        display: block;
        background: none;
        border: none;
        padding: 0.5rem;
        cursor: pointer;
    }

    .nav-toggle span {
        display: block;
        width: 24px;
        height: 2px;
        background: var(--foreground);
        margin: 4px 0;
        transition: all 0.3s ease;
    }

    /* 当菜单打开时的样式 */
    .nav.open .nav-links,
    .nav.open .nav-auth {
        display: flex;
    }
}

/* Hero部分样式优化 */
.hero {
    margin-top: 3.5rem;
    padding: 6rem 0;
    text-align: center;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(to bottom, var(--secondary), var(--background));
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.lead {
    font-size: 1.25rem;
    color: var(--accent);
    margin-bottom: 1rem;
}

/* 工作流程样式 */
.workflow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin: 3rem 0;
    padding: 2rem;
    background: var(--background);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow-x: auto;
}

.workflow-step {
    flex: 1;
    min-width: 200px;
    padding: 1.5rem;
    background: var(--secondary);
    border-radius: var(--radius);
    transition: transform 0.2s;
}

.workflow-step:hover {
    transform: translateY(-5px);
}

.workflow-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.workflow-step h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--foreground);
}

.workflow-step p {
    font-size: 0.875rem;
    color: var(--accent);
}

.workflow-arrow {
    font-size: 1.5rem;
    color: var(--accent);
    flex-shrink: 0;
}

/* 特性标签样式 */
.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin: 2rem 0;
}

.feature-tag {
    padding: 0.5rem 1rem;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 2rem;
    font-size: 0.875rem;
    color: var(--accent);
    transition: all 0.2s;
}

.feature-tag:hover {
    background: var(--secondary);
    transform: translateY(-2px);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .workflow {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .workflow-step {
        width: 100%;
        min-width: auto;
    }

    .workflow-arrow {
        transform: rotate(90deg);
    }

    .hero-features {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .lead {
        font-size: 1rem;
    }

    .workflow-step {
        padding: 1rem;
    }
}

/* 按钮样式 */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    border: none;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--primary);
    color: var(--background);
    padding: 0.5rem 1rem;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

.btn-secondary:hover {
    background: var(--border);
}

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

.btn-outline:hover {
    background: var(--secondary);
}

/* 通用部分样式 */
section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    max-width: 58rem;
    margin: 0 auto 4rem;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
}

.section-desc {
    color: var(--accent);
    font-size: 1.125rem;
}

/* 卡片网格样式 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.card {
    padding: 2rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: transform 0.2s;
}

.card:hover {
    transform: translateY(-2px);
}

/* 解决方案部分样式 */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.solution-card {
    padding: 2rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    transition: transform 0.2s;
}

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

.solution-card .icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* 功能部分样式 */
.features {
    background: linear-gradient(to bottom, var(--background), var(--secondary));
    padding: 8rem 0;
}

.features-flow {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    max-width: 1000px;
    margin: 4rem auto 0;
}

.feature-block {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    transition: all 0.3s ease;
}

.feature-block:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px -10px rgba(0, 0, 0, 0.05);
}

.feature-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.feature-icon {
    width: 3rem;
    height: 3rem;
    background: var(--secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.feature-header h3 {
    font-size: 1.5rem;
    color: var(--foreground);
    margin: 0;
}

.feature-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.feature-item {
    padding: 1.5rem;
    background: var(--secondary);
    border-radius: var(--radius);
    transition: all 0.2s ease;
}

.feature-item:hover {
    background: var(--background);
    border: 1px solid var(--border);
}

.feature-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--foreground);
}

.feature-item p {
    font-size: 0.875rem;
    color: var(--accent);
    line-height: 1.5;
}

.feature-arrow {
    font-size: 2rem;
    color: var(--accent);
    text-align: center;
    margin: 1rem 0;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .features {
        padding: 4rem 0;
    }

    .feature-items {
        grid-template-columns: 1fr;
    }

    .feature-block {
        padding: 1.5rem;
    }

    .feature-header {
        margin-bottom: 1.5rem;
    }
}

/* 价格部分样式 */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.pricing-card {
    position: relative;
    padding: 2rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
    display: flex;
    flex-direction: column;
}

.pricing-card.popular {
    border: 2px solid var(--primary);
}

.popular-badge {
    position: absolute;
    top: -12px;
    right: 2rem;
    background: var(--primary);
    color: white;
    padding: 0.25rem 1rem;
    border-radius: 1rem;
    font-size: 0.875rem;
}

.pricing-header {
    text-align: center;
    margin-bottom: 2rem;
}

.price {
    margin: 1rem 0;
}

.price .amount {
    font-size: 2.5rem;
    font-weight: bold;
}

.price .period {
    color: var(--accent);
}

.pricing-features {
    list-style: none;
    margin: 2rem 0;
    flex-grow: 1;
    font-size: 1.1rem;
}

.pricing-features li {
    margin-bottom: 0.75rem;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 1rem;
}

.pricing-features li::before {
    content: "✓";
    color: var(--primary);
    font-weight: bold;
}

.pricing-card .btn {
    margin-top: auto;
}

.pricing-card .btn-outline,
.pricing-card .btn-primary {
    padding: 0.75rem 2rem;
}

/* 用户评价轮播样式修改 */
.testimonials-carousel {
    position: relative;
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 3rem;
    /* max-width: 80%;  */
    margin-left: auto;
    margin-right: auto;
}

.testimonials-wrapper {
    overflow: hidden;
    width: 100%;
    padding: 1rem 0;
}

.testimonials-track {
    display: flex;
    gap: 2rem;
    transition: transform 0.5s ease;
}

.testimonial-card {
    width: 100%; /* 修改为100%宽度 */
    flex: 0 0 100%; /* 防止缩放 */
    background: var(--background);
    padding: 2.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}

/* 头像和作者信息样式优化 */
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.avatar {
    width: 64px; /* 增大头像尺寸 */
    height: 64px;
    border-radius: 50%;
    background: var(--secondary);
    padding: 2px; /* 添加内边距作为边框效果 */
    border: 2px solid var(--border);
    transition: transform 0.2s ease;
}

.testimonial-card:hover .avatar {
    transform: scale(1.05);
}

.author-info {
    flex: 1;
}

.author-info h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--foreground);
}

.author-info p {
    font-size: 0.875rem;
    color: var(--accent);
}

.testimonial-content {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--accent);
    font-style: italic;
    position: relative;
    padding: 0 1rem;
}

.testimonial-content::before,
.testimonial-content::after {
    content: '"';
    font-size: 2rem;
    color: var(--primary);
    position: absolute;
    opacity: 0.2;
}

.testimonial-content::before {
    left: -0.5rem;
    top: -1rem;
}

.testimonial-content::after {
    right: -0.5rem;
    bottom: -1rem;
}

/* 轮播按钮样式优化 */
.carousel-btn {
    width: 3.5rem;
    height: 3.5rem;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1.25rem;
    color: var(--accent);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

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

.carousel-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    background: var(--secondary);
    border-color: var(--border);
    color: var(--accent);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .testimonials-carousel {
        padding: 0 1rem;
    }

    .testimonial-card {
        padding: 1.5rem;
    }

    .avatar {
        width: 48px;
        height: 48px;
    }

    .testimonial-content {
        font-size: 1rem;
    }
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .lead {
        font-size: 1.25rem;
    }
    
    .nav-links {
        display: none;
    }
    
    section {
        padding: 4rem 0;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .logo-text {
        display: none; /* 在移动端只显示logo图片 */
    }
    
    .logo-image {
        height: 1.75rem;
    }
}

/* 功能流程部分样式 */
.features-flow {
    display: flex;
    flex-direction: column;
    gap: 4rem;
    margin-top: 3rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.feature-stage {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.feature-stage h3 {
    font-size: 1.5rem;
    color: var(--primary);
    position: relative;
    padding-left: 1.5rem;
}

.feature-stage h3::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background: var(--primary);
    border-radius: 2px;
}

.feature-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-item {
    background: var(--background);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: all 0.2s ease;
}

.feature-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.feature-item h4 {
    font-size: 1.25rem;
    margin: 1rem 0;
}

.feature-item p {
    color: var(--accent);
    font-size: 0.875rem;
    line-height: 1.6;
}

/* 愿景部分样式 */
.vision {
    background: var(--secondary);
    padding: 6rem 0;
}

.vision-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.vision-text {
    font-size: 1.25rem;
    color: var(--accent);
    margin: 2rem 0 4rem;
    line-height: 1.8;
}

.vision-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary);
}

.stat-label {
    font-size: 1rem;
    color: var(--accent);
}

/* 底部CTA部分样式 */
.cta {
    background: var(--secondary);
    padding: 6rem 0;
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-content p {
    color: var(--accent);
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Footer样式 */
.footer {
    background: var(--background);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand p {
    color: var(--accent);
    margin: 1rem 0;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.social-links a:hover {
    background: var(--border);
}

.footer-links h4 {
    font-size: 1rem;
    margin-bottom: 1.5rem;
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--foreground);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--accent);
    font-size: 0.875rem;
}

.legal-links {
    display: flex;
    gap: 2rem;
}

.legal-links a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

.legal-links a:hover {
    color: var(--foreground);
}

/* 响应式调整补充 */
@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .legal-links {
        justify-content: center;
    }

    .vision-stats {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .feature-items {
        grid-template-columns: 1fr;
    }

    .features-flow {
        gap: 3rem;
    }
}

/* 问题与痛部分样式优化 */
.problems {
    background: linear-gradient(to bottom, var(--background), var(--secondary));
    padding: 8rem 0;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 4rem;
}

.problem-card {
    background: var(--background);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 2rem;
    transition: all 0.3s ease;
    display: flex;
    gap: 1.5rem;
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px -10px rgba(0, 0, 0, 0.1);
}

.problem-icon {
    flex-shrink: 0;
}

.icon-circle {
    width: 3.5rem;
    height: 3.5rem;
    background: var(--secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.problem-card:hover .icon-circle {
    transform: scale(1.1);
    background: var(--primary);
    color: var(--background);
}

.problem-content {
    flex: 1;
}

.problem-content h3 {
    color: var(--foreground);
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.problem-content > p {
    color: var(--accent);
    font-size: 1rem;
    margin-bottom: 1.25rem;
    line-height: 1.6;
}

.problem-details {
    list-style: none;
    margin: 0;
    padding: 0;
}

.problem-details li {
    color: var(--accent);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.problem-details li::before {
    content: "•";
    position: absolute;
    left: 0.5rem;
    color: var(--primary);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .problems {
        padding: 4rem 0;
    }

    .problem-card {
        flex-direction: column;
        align-items: flex-start;
        padding: 1.5rem;
    }

    .icon-circle {
        width: 3rem;
        height: 3rem;
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    .problems-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

/* 轮播样式 */
.features-carousel {
    position: relative;
    margin-top: 4rem;
}

.carousel-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.carousel-btn {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1.25rem;
    color: var(--accent);
}

.carousel-btn:hover {
    background: var(--secondary);
    color: var(--foreground);
}

.carousel-indicators {
    display: none;
}

.carousel-container {
    position: relative;
    overflow: hidden;
}

.carousel-slide {
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.carousel-slide.active {
    display: block;
    opacity: 1;
}

/* 添加一些动画效果 */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.carousel-slide.active {
    animation: slideIn 0.5s ease forwards;
}

/* 轮播标签样式 */
.carousel-tabs {
    display: flex;
    gap: 1rem;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--background);
    color: var(--accent);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.tab-icon {
    font-size: 1.25rem;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .carousel-tabs {
        flex-direction: column;
        gap: 0.5rem;
    }

    .tab-btn {
        width: 100%;
        justify-content: center;
    }
}

.annual-price {
    font-size: 0.875rem;
    color: var(--accent);
    margin-top: 0.5rem;
}

/* FAQ部分样式 */
.faq {
    background: var(--background);
    padding: 6rem 0;
}

.faq-grid {
    max-width: 800px;
    margin: 3rem auto 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: var(--background);
    border: none;
    cursor: pointer;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--foreground);
    transition: all 0.2s ease;
}

.faq-question:hover {
    background: var(--secondary);
}

.faq-icon {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    stroke-width: 2;
    fill: none;
    transition: transform 0.3s ease;
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0;
    height: 0;
    opacity: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-question[aria-expanded="true"] + .faq-answer {
    padding: 0 1.5rem 1.5rem;
    height: auto;
    opacity: 1;
}

.faq-answer p {
    color: var(--accent);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.faq-answer ul {
    list-style: none;
    padding-left: 1rem;
}

.faq-answer li {
    color: var(--accent);
    margin-bottom: 0.75rem;
    position: relative;
    padding-left: 1.5rem;
}

.faq-answer li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .faq-grid {
        padding: 0 1rem;
    }

    .faq-question {
        padding: 1.25rem;
        font-size: 1rem;
    }
}

/* 深色模式适配 */
@media (prefers-color-scheme: dark) {
    .logo-link {
        color: var(--foreground);
        opacity: 0.95;
    }
    
    .logo-image {
        filter: brightness(0.95);
    }
}