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

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

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

/* 导航栏 */
.main-header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #333;
    font-weight: 700;
    font-size: 1.5rem;
}

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

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

.nav-item {
    margin-left: 30px;
}

.nav-link {
    text-decoration: none;
    color: #555;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover,
.nav-link.active {
    color: #4285f4;
}

.download-btn {
    background-color: #4285f4;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.3s;
}

.download-btn:hover {
    background-color: #3367d6;
}

/* 主横幅区域 */
.hero-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.hero-content {
    max-width: 600px;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.highlight {
    color: #4285f4;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
}

.btn-primary {
    background-color: #4285f4;
    color: white;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.3s;
}

.btn-primary:hover {
    background-color: #3367d6;
}

.btn-secondary {
    background-color: transparent;
    color: #4285f4;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    border: 2px solid #4285f4;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background-color: #4285f4;
    color: white;
}

.stats {
    display: flex;
    gap: 30px;
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #4285f4;
}

.stat-text {
    color: #666;
    font-size: 0.9rem;
}

.hero-image {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    max-width: 50%;
}

.hero-image img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* 功能展示区域 */
.features-section {
    padding: 80px 0;
    background-color: white;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.section-subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 50px;
    font-size: 1.1rem;
}

.features-swiper {
    padding: 20px 0 60px;
}

.feature-card {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 30px;
    height: 350px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.feature-description {
    color: #666;
    margin-bottom: 20px;
}

.feature-details ul {
    list-style: none;
    padding-left: 0;
}

.feature-details li {
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.feature-details li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #34a853;
}

/* 安全特性区域 */
.security-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.security-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.security-item {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.security-item:hover {
    transform: translateY(-5px);
}

.security-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.security-item h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.security-item p {
    color: #666;
}

.security-chart {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.security-chart h3 {
    margin-bottom: 30px;
    text-align: center;
}

.chart-container {
    margin-bottom: 20px;
}

.chart-bar {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
}

.bar-label {
    width: 150px;
    font-weight: 500;
}

.bar-fill {
    height: 30px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    padding-left: 15px;
    position: relative;
    overflow: hidden;
}

.chrome-bar {
    background-color: #4285f4;
}

.other-bar {
    background-color: #ea4335;
}

.bar-value {
    color: white;
    font-weight: 500;
}

.chart-caption {
    text-align: center;
    color: #666;
    font-style: italic;
}

/* 平台支持区域 */
.platforms-section {
    padding: 80px 0;
    background-color: white;
}

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

.platform-slider {
    display: flex;
    transition: transform 0.5s ease;
}

.platform-slide {
    min-width: 100%;
    padding: 30px;
    text-align: center;
    display: none;
}

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

.platform-slide img {
    margin-bottom: 20px;
}

.platform-slide h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.platform-slide p {
    color: #666;
    margin-bottom: 25px;
}

.platform-btn {
    display: inline-block;
    background-color: #f8f9fa;
    color: #4285f4;
    padding: 10px 25px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    border: 2px solid #4285f4;
    transition: all 0.3s;
}

.platform-btn:hover {
    background-color: #4285f4;
    color: white;
}

.platform-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 30px;
}

.platform-nav-btn {
    background-color: #4285f4;
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: background-color 0.3s;
}

.platform-nav-btn:hover {
    background-color: #3367d6;
}

.platform-dots {
    display: flex;
    gap: 10px;
    margin: 0 20px;
}

.platform-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #ddd;
    cursor: pointer;
    transition: background-color 0.3s;
}

.platform-dot.active {
    background-color: #4285f4;
}

/* 常见问题区域 */
.faq-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

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

.faq-item {
    background-color: white;
    border-radius: 10px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.faq-question {
    padding: 20px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-question h3 {
    font-size: 1.2rem;
}

.faq-toggle {
    font-size: 1.5rem;
    color: #4285f4;
    transition: transform 0.3s;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s, padding 0.3s;
}

.faq-item.active .faq-answer {
    padding: 0 30px 30px;
    max-height: 200px;
}

.faq-answer p {
    color: #666;
}

/* 召唤区域 */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #4285f4 0%, #3367d6 100%);
    color: white;
    text-align: center;
}

.cta-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-text {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.btn-large {
    padding: 15px 40px;
    font-size: 1.1rem;
}

.cta-note {
    margin-top: 20px;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 页脚 */
.main-footer {
    background-color: #333;
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
}

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

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-column h4 {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

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

.footer-column li {
    margin-bottom: 10px;
}

.footer-column a {
    color: #bbb;
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #444;
    color: #bbb;
    font-size: 0.9rem;
}

.footer-bottom p {
    margin-bottom: 10px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-image {
        position: relative;
        top: auto;
        transform: none;
        max-width: 100%;
        margin-top: 40px;
    }
    
    .stats {
        justify-content: center;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-links {
        flex-wrap: wrap;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-item {
        margin: 0 10px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .stats {
        flex-direction: column;
        gap: 15px;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .feature-card {
        height: auto;
        min-height: 350px;
    }
    
    .security-grid {
        grid-template-columns: 1fr;
    }
}