:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #818cf8;
    --secondary: #1e293b;
    --text: #334155;
    --text-light: #64748b;
    --background: #f8fafc;
    --white: #ffffff;
    --border: #e2e8f0;
    --success: #22c55e;
    --warning: #eab308;
    --error: #ef4444;
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text);
    background-color: var(--background);
    line-height: 1.5;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* 导航栏样式 */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
}

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

/* 文字logo样式 */
.logo-text {
    font-size: 1.6rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.5px;
    color: var(--secondary);
}

.logo-highlight {
    color: var(--primary);
    font-weight: 800;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

.primary-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    border: none;
    padding: 0.5rem 1.25rem;
    border-radius: 0.4rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
}

.primary-btn:hover {
    transform: none;
    box-shadow: none;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-dark));
    color: var(--white);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.menu-toggle span {
    width: 22px;
    height: 2px;
    background-color: var(--text);
    border-radius: 2px;
}

/* Hero 区域样式 - 现代SaaS风格 */
.hero {
    padding: 2rem 0 2.5rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: url('images/demo.png') center/cover no-repeat;
    opacity: 0.1;
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
}

.hero-content {
    flex: 1;
    min-width: 300px;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--white);
    font-weight: 700;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 1.75rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 580px;
}

.hero-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.btn-light {
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.7);
}

.btn-light:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.9);
}

.hero-image {
    flex: 1;
    min-width: 300px;
    display: flex;
    justify-content: flex-end;
}

.screenshot {
    max-width: 100%;
    height: auto;
    border-radius: 0.5rem;
}

/* 特性部分样式 */
.section-title {
    font-size: 2.25rem;
    margin-bottom: 0.75rem;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}

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

.feature-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-bottom: 1.25rem;
}

.feature-icon i {
    font-size: 1.25rem;
    color: var(--white);
}

.feature-card h3 {
    margin-bottom: 0.75rem;
    font-size: 1.2rem;
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* 产品展示区域样式 */
.product-showcase {
    background-color: var(--white);
    padding: 2.5rem 0;
}

.product-showcase-grid {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.product-showcase-grid.reverse {
    flex-direction: row-reverse;
}

.product-screenshot {
    flex: 1;
    min-width: 300px;
}

.product-description {
    flex: 1;
    min-width: 300px;
}

.product-description h2 {
    margin-bottom: 1.25rem;
    font-size: 1.8rem;
}

.product-features-list {
    list-style: none;
}

.product-features-list li {
    margin-bottom: 0.6rem;
    display: flex;
    align-items: center;
    font-size: 0.95rem;
}

.product-features-list li i {
    color: var(--success);
    margin-right: 0.6rem;
}

/* 下载区域样式 */
.download {
    position: relative;
    padding: 2.5rem 0;
    background-color: var(--background);
    overflow: hidden;
}

.download-container {
    max-width: 800px;
    margin: 0 auto;
    border-radius: 1rem;
    display: flex;
    flex-wrap: wrap;
    overflow: hidden;
    border: 1px solid rgba(79, 70, 229, 0.2);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(248, 250, 252, 0.8));
    backdrop-filter: blur(8px);
}

.download-left {
    flex: 1;
    padding: 2rem;
    min-width: 300px;
}

.download-right {
    flex: 1;
    padding: 2rem;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    background: rgba(79, 70, 229, 0.03);
    border-left: 1px solid rgba(79, 70, 229, 0.1);
}

.download-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

.download-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.8rem;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: white;
    border-radius: 2rem;
    font-weight: 500;
    font-size: 0.9rem;
}

.download-badge i {
    margin-right: 0.4rem;
}

.download-version {
    font-size: 0.9rem;
    color: var(--text-light);
}

.download-version i {
    color: var(--primary);
    margin-right: 0.35rem;
}

.download h3 {
    margin-bottom: 0.75rem;
    color: var(--secondary);
    font-size: 1.5rem;
}

.download p {
    margin-bottom: 1.5rem;
    color: var(--text);
    font-size: 1rem;
}

.download-features {
    list-style: none;
    margin-bottom: 1rem;
}

.download-features li {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.download-features li i {
    color: var(--success);
    margin-right: 0.75rem;
}

.download-btn {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    width: 100%;
    text-align: center;
    margin-bottom: 1rem;
    text-decoration: none;
}

.download-right .download-btn {
    width: 100%;
    margin-bottom: 1.5rem;
}

.download-btn:hover {
    text-decoration: none;
}

.download-alt-link {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 2rem;
    align-self: center;
    transition: color 0.2s;
}

.download-alt-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.download-note {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    background: rgba(79, 70, 229, 0.08);
    border-radius: 0.5rem;
    margin-top: auto;
    width: 100%;
}

.download-note i {
    color: var(--primary);
    font-size: 1.1rem;
    margin-right: 0.75rem;
}

.download-note p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text);
}

.glass-card {
    border: 1px solid rgba(79, 70, 229, 0.15);
}

@media (max-width: 768px) {
    .download-container {
        flex-direction: column;
    }
    
    .download-right {
        border-left: none;
        border-top: 1px solid rgba(79, 70, 229, 0.1);
    }
}

/* 使用指南样式更新 */
.guide {
    background-color: var(--background);
    padding: 3.5rem 0;
}

.guides-container {
    max-width: 850px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: none;
}

.guide-step {
    display: flex;
    margin-bottom: 2rem;
    align-items: flex-start;
    position: relative;
}

.guide-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 45px;
    left: 22px;
    height: calc(100% + 1rem);
    width: 2px;
    background: linear-gradient(to bottom, var(--primary-light), rgba(129, 140, 248, 0.1));
}

.guide-step-number {
    flex-shrink: 0;
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    margin-right: 1.25rem;
    margin-top: 0.4rem;
    z-index: 1;
    box-shadow: none;
}

.guide-step-content {
    flex: 1;
    background: rgba(255, 255, 255, 0.8);
    padding: 1.25rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border);
    transition: border-color 0.2s;
}

.guide-step-content:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--primary);
}

.guide-step-content h3 {
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
    color: var(--primary-dark);
}

.guide-image {
    max-width: 100%;
    height: auto;
    border-radius: 0.6rem;
    margin-top: 1.25rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.guide-more {
    margin-top: 2rem;
}

/* 用户评价样式 */
.testimonials {
    background-color: var(--white);
    padding: 3.5rem 0;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.testimonial-card {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
}

.testimonial-rating {
    color: var(--warning);
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
}

.testimonial-text {
    margin-bottom: 1.25rem;
    flex-grow: 1;
    font-size: 0.95rem;
    font-style: normal;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.testimonial-avatar img {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    object-fit: cover;
}

.testimonial-info h4 {
    margin-bottom: 0.2rem;
    font-size: 1rem;
}

.testimonial-info p {
    color: var(--text-light);
    font-size: 0.85rem;
    margin-bottom: 0;
}

/* FAQ 样式 */
.faq {
    background-color: var(--background);
    padding: 3.5rem 0;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 0 auto;
}

.faq-card {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    background-color: var(--white);
    border-radius: 0.6rem;
    border: 1px solid var(--border);
    height: 100%;
}

.faq-card h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--primary-dark);
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.faq-card p {
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.5;
    flex-grow: 1;
}

@media (max-width: 768px) {
    .faq-grid {
        grid-template-columns: 1fr;
    }
}

/* 页脚样式 */
.footer {
    background-color: var(--secondary);
    color: var(--white);
    padding: 3rem 0 1.5rem;
    margin-top: 0;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 2.5rem;
    margin-bottom: 2.5rem;
}

.footer-logo {
    flex: 1;
    min-width: 220px;
}

.footer-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 0.5rem;
    letter-spacing: -0.5px;
    color: var(--white);
}

.footer-logo-highlight {
    color: var(--primary-light);
    font-weight: 800;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-links {
    flex: 2;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-links-column {
    flex: 1;
    min-width: 140px;
}

.footer-links-column h4 {
    color: var(--white);
    margin-bottom: 1.25rem;
    font-size: 1rem;
}

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

.footer-links-column ul li {
    margin-bottom: 0.6rem;
}

.footer-links-column ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s;
    font-size: 0.9rem;
}

.footer-links-column ul li a:hover {
    color: var(--white);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    gap: 1rem;
}

.footer-disclaimer {
    flex: 1;
}

.footer-disclaimer p {
    margin-bottom: 0.5rem;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.4;
}

.footer-disclaimer p:last-child {
    margin-bottom: 0;
}

.footer-disclaimer a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-disclaimer a:hover {
    color: var(--white);
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.social-link {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    transition: background-color 0.2s;
}

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

/* 移除动画效果，使元素默认可见 */
.animate-on-scroll {
    opacity: 1;
    transform: translateY(0);
    transition: none;
}

.animated {
    opacity: 1;
    transform: translateY(0);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 0.75rem;
        border-bottom: 1px solid var(--border);
        gap: 0.75rem;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .download-btn {
        display: none;
    }
    
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content, .hero-image {
        width: 100%;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-image {
        justify-content: center;
        margin-top: 1.5rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .product-showcase-grid {
        flex-direction: column;
    }
    
    .product-showcase-grid.reverse {
        flex-direction: column;
    }
    
    .guide-step {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .guide-step-number {
        margin-right: 0;
        margin-bottom: 0.75rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
        text-align: center;
    }
    
    .footer-disclaimer {
        text-align: center;
    }
}

/* 通用卡片样式 */
.card {
    background: var(--white);
    border-radius: 0.6rem;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: border-color 0.2s;
}

.card:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--primary);
}

/* 特性卡片的hover效果 */
.feature-card:hover {
    border-color: var(--primary);
}

/* 下载卡片的hover效果 */
.download-card:hover {
    border-color: var(--primary-light);
}

/* FAQ卡片的hover效果 */
.faq-card:hover {
    border-color: var(--primary);
}

/* 用户评价卡片的hover效果 */
.testimonial-card:hover {
    border-color: var(--primary);
}

/* 图片hover效果更新 */
.screenshot:hover {
    transform: none;
}

/* 毛玻璃效果 */
.glass {
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.25);
}

/* 渐变背景 */
.gradient-bg {
    background: linear-gradient(135deg, #a5b4fc, #818cf8, #4f46e5);
    color: var(--white);
}

/* 按钮样式 */
.btn {
    padding: 0.5rem 1.25rem;
    border-radius: 0.4rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
    display: inline-block;
    text-decoration: none;
}

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

.btn-outline:hover {
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary-dark);
    border-color: var(--primary-dark);
}

/* 通用间距 - 紧凑布局 */
.section {
    padding: 2.5rem 0;
}

.mb-4 {
    margin-bottom: 0.75rem;
}

.mb-8 {
    margin-bottom: 1.5rem;
}

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

/* 文本样式 */
h1, h2, h3, h4, h5, h6 {
    color: var(--secondary);
    font-weight: 600;
    line-height: 1.2;
}

h1 {
    font-size: 2.25rem;
    margin-bottom: 1.25rem;
}

h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
}

p {
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

/* 按钮图标 */
.btn-icon {
    margin-right: 0.5rem;
    font-size: 0.95em;
}

/* 按钮发光效果 */
.btn-shine {
    position: relative;
    overflow: hidden;
}

.btn-shine::before {
    display: none;
}

.btn-shine:hover::before {
    left: 100%;
    top: 100%;
}

/* 强调按钮修改 */
.btn-accent {
    border-color: var(--primary);
    color: var(--primary);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-accent::after {
    display: none;
}

.btn-accent:hover {
    color: var(--primary);
    background-color: rgba(79, 70, 229, 0.1);
}

/* 修复导航栏下载按钮宽度和高度问题 */
.navbar .primary-btn {
    width: auto;
    margin-bottom: 0;
    padding: 0.4rem 1rem;
    font-size: 0.9rem;
}

.download-info-box {
    margin: 0 0 1.5rem 0;
    border-radius: 0.5rem;
    overflow: hidden;
}

.download-info-item {
    margin-bottom: 1.25rem;
}

.download-info-item h4 {
    font-size: 1rem;
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
    color: var(--secondary);
}

.download-info-item h4 i {
    color: var(--primary);
    margin-right: 0.5rem;
    font-size: 1rem;
}

.download-info-item ul {
    list-style: none;
    margin: 0.5rem 0 0 1.5rem;
}

.download-info-item ul li {
    font-size: 0.85rem;
    margin-bottom: 0.4rem;
    position: relative;
    color: var(--text);
}

.download-info-item ul li:before {
    content: "•";
    position: absolute;
    left: -1rem;
    color: var(--primary-light);
}

.download-info-item p {
    font-size: 0.85rem;
    margin: 0.5rem 0 0 0;
    line-height: 1.5;
}

.download-right .btn.primary-btn {
    margin-bottom: 1.5rem;
}

/* 下载区域额外样式 */
.download-alternatives {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.download-alternatives h3 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--secondary);
}

.download-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.download-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.25rem;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    text-decoration: none;
    color: var(--text);
    transition: border-color 0.2s, background-color 0.2s;
    min-width: 160px;
}

.download-link:hover {
    border-color: var(--primary);
    background-color: rgba(79, 70, 229, 0.05);
    text-decoration: none;
}

.download-link i {
    font-size: 1.2rem;
    margin-right: 0.75rem;
    color: var(--primary);
}

.download-link span {
    font-weight: 500;
}



/* Logo子标题样式 */
.logo-subtitle {
    display: block;
    font-size: 0.7rem;
    color: var(--text-light);
    font-weight: 400;
    margin-top: -0.25rem;
}

/* 下载按钮容器 */
.download-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

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

/* 下载通知样式 */
.download-notice {
    margin-top: 1rem;
    padding: 0.75rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 0.5rem;
}

.download-notice p {
    margin: 0;
    font-size: 0.85rem;
    color: #dc2626;
}

.download-notice i {
    color: #dc2626;
    margin-right: 0.5rem;
}

/* 下载说明页面样式 */
.download-info {
    background-color: var(--background);
}

.download-sources {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.download-source-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 0.6rem;
    padding: 1.5rem;
    text-align: center;
    transition: border-color 0.2s;
}

.download-source-card:hover {
    border-color: var(--primary);
}

.source-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.source-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.download-source-card h3 {
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
    color: var(--secondary);
}

.download-source-card p {
    margin-bottom: 1.25rem;
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* 安全警告样式 */
.download-warning {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 0.6rem;
    padding: 1.5rem;
}

.warning-content h3 {
    margin-bottom: 1.25rem;
    color: var(--secondary);
    font-size: 1.1rem;
    text-align: center;
}

.warning-content h3 i {
    color: var(--primary);
    margin-right: 0.5rem;
}

.warning-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.warning-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.warning-item i {
    color: var(--success);
    font-size: 1rem;
    margin-top: 0.15rem;
    flex-shrink: 0;
}

.warning-item p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text);
    line-height: 1.4;
}

/* 响应式布局 */
@media (max-width: 1024px) {
    .download-sources {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .download-sources {
        grid-template-columns: 1fr;
    }
    
    .warning-grid {
        grid-template-columns: 1fr;
    }
    

    
    .logo-subtitle {
        font-size: 0.65rem;
    }
}

/* 使用场景区域样式 */
.use-cases {
    background-color: var(--white);
    padding: 3.5rem 0;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.use-case-card {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    background-color: var(--white);
    border-radius: 0.6rem;
    border: 1px solid var(--border);
    height: 100%;
}

.use-case-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin-bottom: 1.25rem;
}

.use-case-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.use-case-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    color: var(--secondary);
}

.use-case-card p {
    font-size: 0.95rem;
    color: var(--text);
    line-height: 1.6;
    margin-bottom: 1.25rem;
    flex-grow: 1;
}

.use-case-benefit {
    display: flex;
    align-items: center;
    margin-top: auto;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

.use-case-benefit i {
    color: var(--success);
    margin-right: 0.75rem;
    font-size: 1.1rem;
}

.use-case-benefit span {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text);
}

/* 使用场景卡片悬浮效果 */
.use-case-card:hover {
    border-color: var(--primary);
}

@media (max-width: 992px) {
    .use-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
}

/* 兼容性/技术规格区域样式 */
.compatibility {
    background-color: var(--background);
    padding: 3.5rem 0;
}

.specs-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.specs-card {
    background-color: var(--white);
    border-radius: 0.6rem;
    border: 1px solid var(--border);
    overflow: hidden;
    transition: border-color 0.2s;
}

.specs-card:hover {
    border-color: var(--primary);
}

.specs-header {
    display: flex;
    align-items: center;
    padding: 1.25rem;
    background: linear-gradient(to right, rgba(79, 70, 229, 0.1), rgba(79, 70, 229, 0.05));
    border-bottom: 1px solid var(--border);
}

.specs-header i {
    font-size: 1.5rem;
    color: var(--primary);
    margin-right: 1rem;
}

.specs-header h3 {
    font-size: 1.1rem;
    color: var(--secondary);
    margin: 0;
}

.specs-list {
    list-style: none;
    padding: 1.25rem;
    margin: 0;
}

.specs-list li {
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
    color: var(--text);
    line-height: 1.5;
}

.specs-list li:last-child {
    margin-bottom: 0;
}

.specs-list strong {
    color: var(--secondary);
    font-weight: 600;
}

@media (max-width: 1200px) {
    .specs-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .specs-container {
        grid-template-columns: 1fr;
    }
}

/* 用户统计数据区域样式 */
.stats-section {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.08), rgba(129, 140, 248, 0.12));
    padding: 4rem 0 3rem;
    margin-bottom: 0;
    overflow: hidden;
    position: relative;
}

.stats-section::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background-image: radial-gradient(circle at 10% 10%, rgba(79, 70, 229, 0.05) 0%, transparent 50%),
                      radial-gradient(circle at 90% 90%, rgba(129, 140, 248, 0.05) 0%, transparent 50%);
    opacity: 0.7;
    z-index: 0;
}

.stats-section .container {
    position: relative;
    z-index: 1;
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2rem;
    margin: 3rem 0;
}

.stat-item {
    text-align: center;
    padding: 2rem 1rem;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 0.6rem;
    border: 1px solid rgba(79, 70, 229, 0.15);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
    transition: transform 0.3s, border-color 0.3s;
}

.stat-item:hover {
    border-color: var(--primary);
    transform: none;
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.75rem;
    line-height: 1;
}

.stat-label {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.stat-desc {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.4;
}

.stats-partners {
    margin-top: 3rem;
}

.stats-partners h3 {
    font-size: 1.4rem;
    color: var(--secondary);
    margin-bottom: 1.5rem;
}

.partner-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.partner-logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-light);
    opacity: 0.7;
    transition: opacity 0.2s, color 0.2s;
}

.partner-logo:hover {
    opacity: 1;
    color: var(--primary);
}

@media (max-width: 1200px) {
    .stats-container {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .partner-logos {
        gap: 1.5rem;
    }
}

@media (max-width: 576px) {
    .stats-container {
        grid-template-columns: 1fr;
    }
    
    .stat-item {
        padding: 1.5rem 1rem;
    }
}

.btn-white {
    background-color: var(--white);
    color: var(--primary);
    border: 1px solid var(--white);
    font-weight: 500;
    transition: background-color 0.3s, color 0.3s;
}

.btn-white:hover {
    background-color: rgba(255, 255, 255, 0.9);
    color: var(--primary-dark);
}