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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

a {
    text-decoration: none;
    color: #1a73e8;
    transition: color 0.3s ease;
}

a:hover {
    color: #1558b6;
}

ul {
    list-style: none;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 24px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    font-size: 16px;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #1a73e8;
    color: white;
}

.btn-primary:hover {
    background-color: #1558b6;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: #34a853;
    color: white;
}

.btn-secondary:hover {
    background-color: #2d8946;
    transform: translateY(-2px);
}

.btn-download {
    background-color: #ea4335;
    color: white;
    padding: 14px 28px;
    font-size: 18px;
    margin-top: 15px;
    border-radius: 4px;
    display: inline-block;
    width: 100%;
    text-align: center;
}

.btn-download:hover {
    background-color: #d33a2c;
    transform: translateY(-2px);
}

.btn-link {
    color: #1a73e8;
    font-weight: 600;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
    display: inline-block;
    margin-top: 20px;
}

.btn-link:hover {
    text-decoration: underline;
}

.btn-back {
    background-color: #f1f3f4;
    color: #3c4043;
    padding: 10px 20px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-back:hover {
    background-color: #e8eaed;
}

/* 头部样式 */
.header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

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

.logo h1 {
    font-size: 24px;
    font-weight: 600;
    color: #333;
}

.nav ul {
    display: flex;
    gap: 30px;
}

.nav a {
    color: #5f6368;
    font-weight: 500;
    font-size: 16px;
    padding: 8px 0;
    position: relative;
}

.nav a:hover,
.nav a[aria-current="page"] {
    color: #1a73e8;
}

.nav a[aria-current="page"]::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #1a73e8;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #1a73e8 0%, #4285f4 100%);
    color: white;
    padding: 80px 0;
    margin-bottom: 60px;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.2;
}

.subtitle {
    font-size: 20px;
    margin-bottom: 24px;
    opacity: 0.9;
}

.platforms {
    margin-top: 20px;
    font-size: 16px;
}

.platform {
    background-color: rgba(255, 255, 255, 0.2);
    padding: 6px 12px;
    border-radius: 12px;
    margin-right: 8px;
    font-size: 14px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.hero-image img {
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* 特性区域 */
.features {
    padding: 80px 0;
    background-color: white;
}

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

.features h2 {
    font-size: 32px;
    margin-bottom: 50px;
    color: #333;
}

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

.feature-item {
    padding: 30px;
    background-color: #f8f9fa;
    border-radius: 12px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.feature-item h3 {
    font-size: 22px;
    margin-bottom: 16px;
    color: #1a73e8;
}

.feature-item p {
    color: #5f6368;
    font-size: 16px;
}

/* CTA 区域 */
.cta {
    padding: 80px 0;
    background-color: #f1f3f4;
    text-align: center;
}

.cta h2 {
    font-size: 32px;
    margin-bottom: 16px;
    color: #333;
}

.cta p {
    font-size: 18px;
    color: #5f6368;
    margin-bottom: 30px;
}

/* 常见问题预览 */
.faq-preview {
    padding: 80px 0;
    background-color: white;
}

.faq-preview .container {
    text-align: center;
}

.faq-preview h2 {
    font-size: 32px;
    margin-bottom: 20px;
    color: #333;
}

.faq-preview p {
    font-size: 18px;
    color: #5f6368;
    margin-bottom: 30px;
}

.faq-list {
    text-align: left;
    max-width: 600px;
    margin: 0 auto 30px;
    padding-left: 20px;
}

.faq-list li {
    margin-bottom: 12px;
}

.faq-list a {
    font-size: 18px;
    color: #1a73e8;
}

.faq-list a:hover {
    text-decoration: underline;
}

/* 下载页面 */
.download-section {
    padding: 80px 0;
    background-color: white;
}

.download-section .container {
    max-width: 900px;
    text-align: center;
}

.download-section h1 {
    font-size: 36px;
    margin-bottom: 16px;
    color: #333;
}

.download-subtitle {
    font-size: 20px;
    color: #5f6368;
    margin-bottom: 50px;
}

.download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.option {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 12px;
    transition: transform 0.3s ease;
}

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

.option h3 {
    font-size: 22px;
    margin-bottom: 12px;
    color: #333;
}

.option p {
    color: #5f6368;
    margin-bottom: 20px;
    font-size: 16px;
}

.download-note {
    background-color: #fff8e1;
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid #fdd835;
    margin-top: 30px;
    text-align: center;
    font-size: 14px;
    color: #5f6368;
}

.download-note a {
    color: #1a73e8;
    font-weight: 500;
}

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

.faq-section .container {
    max-width: 800px;
}

.faq-section h1 {
    font-size: 36px;
    margin-bottom: 20px;
    color: #333;
    text-align: center;
}

.faq-intro {
    font-size: 18px;
    color: #5f6368;
    margin-bottom: 40px;
    text-align: center;
}

.faq-list-container {
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.faq-list li {
    border-bottom: 1px solid #e8eaed;
    padding: 20px;
    transition: background-color 0.3s ease;
}

.faq-list li:last-child {
    border-bottom: none;
}

.faq-list li:hover {
    background-color: #f8f9fa;
}

.faq-list a {
    display: block;
    color: #333;
    text-decoration: none;
}

.faq-list h3 {
    font-size: 20px;
    margin-bottom: 8px;
    color: #1a73e8;
}

.faq-list p {
    color: #5f6368;
    font-size: 16px;
}

/* 常见问题详情页 */
.faq-detail-section {
    padding: 80px 0;
    background-color: white;
}

.breadcrumb {
    font-size: 14px;
    color: #5f6368;
    margin-bottom: 30px;
}

.breadcrumb a {
    color: #1a73e8;
}

.breadcrumb span {
    color: #5f6368;
    font-weight: 500;
}

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

.faq-detail h1 {
    font-size: 36px;
    margin-bottom: 30px;
    color: #333;
    line-height: 1.3;
}

.faq-image {
    text-align: center;
    margin: 30px 0;
}

.faq-content {
    font-size: 18px;
    color: #5f6368;
    line-height: 1.8;
}

.faq-content h2 {
    font-size: 28px;
    margin: 40px 0 20px 0;
    color: #333;
    padding-bottom: 10px;
    border-bottom: 2px solid #e8eaed;
}

.faq-content ol {
    margin-left: 20px;
    margin-bottom: 20px;
}

.faq-content li {
    margin-bottom: 12px;
}

.faq-content code {
    background-color: #f1f3f4;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
}

.tip {
    background-color: #e7f4e4;
    border-left: 4px solid #34a853;
    padding: 16px;
    margin: 30px 0;
    border-radius: 0 8px 8px 0;
}

.tip strong {
    color: #333;
}

.faq-navigation {
    margin-top: 50px;
    text-align: center;
}

/* 页脚 */
.footer {
    background-color: #202124;
    color: #bdc1c6;
    padding: 40px 0 20px;
}

.footer .container {
    max-width: 1200px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 15px;
}

.footer-logo img {
    border-radius: 8px;
}

.footer-logo p {
    font-size: 14px;
    color: #bdc1c6;
}

.footer-nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-nav a {
    color: #bdc1c6;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-nav a:hover {
    color: #e8eaed;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero {
        padding: 60px 0;
    }
    
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        margin-bottom: 40px;
    }
    
    .hero h2 {
        font-size: 32px;
    }
    
    .features h2,
    .cta h2,
    .faq-preview h2,
    .download-section h1,
    .faq-section h1,
    .faq-detail h1 {
        font-size: 28px;
    }
    
    .nav ul {
        gap: 20px;
    }
    
    .breadcrumb {
        font-size: 13px;
    }
    
    .footer-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .footer-nav ul {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        width: 95%;
    }
    
    .hero h2 {
        font-size: 28px;
    }
    
    .subtitle {
        font-size: 18px;
    }
    
    .platforms {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
        margin-top: 15px;
    }
    
    .platform {
        margin-bottom: 8px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 16px;
    }
    
    .btn-download {
        font-size: 16px;
        padding: 12px 24px;
    }
}