/* 全局样式 */
:root {
    --primary-color: #4a6bff;
    --secondary-color: #6c757d;
    --accent-color: #ff6b6b;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-color: #e9ecef;
    --success-color: #28a745;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #fff;
}

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

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

a:hover {
    color: #3a56cc;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.section-description {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
    color: var(--secondary-color);
    font-size: 1.1rem;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    background-color: #3a56cc;
    color: white;
}

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

.btn-secondary:hover {
    background-color: #5a6268;
    color: white;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-download {
    background-color: var(--success-color);
    color: white;
}

.btn-download:hover {
    background-color: #218838;
    color: white;
}

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

.navbar {
    padding: 15px 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo img {
    height: 40px;
    margin-right: 10px;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    align-items: center;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    color: var(--dark-color);
    font-weight: 500;
}

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

.github-link {
    display: flex;
    align-items: center;
    background-color: var(--dark-color);
    color: white !important;
    padding: 8px 16px;
    border-radius: var(--border-radius);
}

.github-link i {
    margin-right: 8px;
}

.github-link:hover {
    background-color: #000;
}

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--dark-color);
    margin: 5px 0;
    transition: var(--transition);
}

/* 英雄区域样式 */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7ff 0%, #e8ecff 100%);
}

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

.hero-content {
    flex: 1;
    padding-right: 40px;
}

.hero-content h1 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    gap: 15px;
}

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

.hero-image img {
    max-width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* 功能特点样式 */
.features {
    padding: 80px 0;
    background-color: white;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature-card {
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--secondary-color);
}

/* 下载区域样式 */
.download {
    padding: 80px 0;
    background-color: var(--gray-color);
}

.download-options {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.download-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    width: 300px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.download-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.download-card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.download-card p {
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.source-code {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    max-width: 800px;
    margin: 0 auto;
    box-shadow: var(--box-shadow);
}

.source-code h3 {
    margin-bottom: 15px;
}

.source-code p {
    margin-bottom: 20px;
}

.code-block {
    background-color: var(--dark-color);
    border-radius: var(--border-radius);
    padding: 15px;
    position: relative;
    overflow: hidden;
}

.code-block code {
    color: white;
    font-family: 'Courier New', Courier, monospace;
    display: block;
    overflow-x: auto;
}

.copy-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 5px 10px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: var(--transition);
}

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

/* 文档区域样式 */
.documentation {
    padding: 80px 0;
    background-color: white;
}

.doc-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.doc-card {
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.doc-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.doc-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.doc-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.doc-card p {
    color: var(--secondary-color);
    margin-bottom: 20px;
}

/* 社区区域样式 */
.community {
    padding: 80px 0;
    background-color: var(--gray-color);
}

.community-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.community-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: white;
    border-radius: var(--border-radius);
    padding: 20px;
    width: 150px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.community-link:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.community-link i {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.contribute {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    box-shadow: var(--box-shadow);
}

.contribute h3 {
    margin-bottom: 15px;
}

.contribute p {
    margin-bottom: 20px;
}

/* 赞助商区域样式 */
.sponsors {
    padding: 80px 0;
    background-color: white;
}

.sponsor-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 50px;
}

.sponsor-logo {
    filter: grayscale(100%);
    opacity: 0.7;
    transition: var(--transition);
    max-width: 150px;
}

.sponsor-logo:hover {
    filter: grayscale(0);
    opacity: 1;
}

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

.become-sponsor p {
    margin-bottom: 20px;
}

/* 页脚样式 */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 60px 0 30px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.footer-logo img {
    height: 30px;
    margin-right: 10px;
}

.footer-logo h3 {
    font-size: 1.2rem;
    color: white;
}

.footer-col p {
    color: #adb5bd;
    margin-bottom: 20px;
}

.footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: white;
}

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

.footer-col ul li a {
    color: #adb5bd;
}

.footer-col ul li a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    transition: var(--transition);
}

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

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #adb5bd;
}

.copyright a {
    color: #adb5bd;
    text-decoration: underline;
}

.copyright a:hover {
    color: white;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content {
        padding-right: 0;
        margin-bottom: 40px;
        text-align: center;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .hero-image {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: white;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 40px;
        transition: var(--transition);
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links li {
        margin: 15px 0;
    }
    
    .hamburger {
        display: block;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
}