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

:root {
    --primary-color: #00d4ff;
    --secondary-color: #0099cc;
    --dark-bg: #1a1a2e;
    --darker-bg: #16213e;
    --light-text: #ffffff;
    --gray-text: #b8b8b8;
    --card-bg: #0f3460;
    --hover-color: #00a8cc;
    --success-color: #00ff88;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
}

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

/* 导航栏 */
.navbar {
    background-color: var(--darker-bg);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

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

.logo h1 {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: bold;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--light-text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

/* 主页头部 */
.hero {
    padding: 6rem 0;
    text-align: center;
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.hero-subtitle {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--light-text);
}

.hero-description {
    font-size: 1.2rem;
    color: var(--gray-text);
    max-width: 600px;
    margin: 0 auto 2rem;
}

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

/* 按钮样式 */
.btn {
    padding: 0.8rem 2rem;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

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

.btn-primary:hover {
    background-color: var(--hover-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.3);
}

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

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

.btn-download {
    background-color: var(--success-color);
    color: var(--darker-bg);
    padding: 0.6rem 1.5rem;
    font-size: 0.95rem;
}

.btn-download:hover {
    background-color: #00dd77;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 255, 136, 0.3);
}

/* 区块标题 */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

/* 功能特性 */
.features {
    padding: 5rem 0;
    background-color: var(--dark-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 10px;
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

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

/* 应用说明 */
.about {
    padding: 5rem 0;
    background-color: var(--darker-bg);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text h3 {
    color: var(--primary-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.about-text h3:first-child {
    margin-top: 0;
}

.about-text p {
    color: var(--gray-text);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

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

.feature-list li {
    color: var(--gray-text);
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    position: relative;
}

.feature-list li:before {
    content: "▸";
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

.feature-list strong {
    color: var(--light-text);
}

/* 下载区域 */
.download {
    padding: 5rem 0;
    background-color: var(--dark-bg);
}

.download-subtitle {
    text-align: center;
    color: var(--gray-text);
    font-size: 1.2rem;
    margin-bottom: 3rem;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.download-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
}

.os-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.download-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.8rem;
}

.download-card p {
    color: var(--gray-text);
    margin-bottom: 1.5rem;
}

.download-options {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.file-info {
    color: var(--gray-text);
    font-size: 0.85rem;
}

/* 安装指南 */
.install-guide {
    background-color: var(--card-bg);
    padding: 3rem;
    border-radius: 10px;
    margin-bottom: 3rem;
}

.install-guide h3 {
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-size: 2rem;
    text-align: center;
}

.tab-content {
    margin-bottom: 2rem;
}

.tab-content h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.tab-content ol {
    color: var(--gray-text);
    padding-left: 1.5rem;
}

.tab-content ol li {
    margin-bottom: 0.5rem;
}

.tab-content pre {
    background-color: var(--darker-bg);
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
    margin-top: 1rem;
}

.tab-content code {
    color: var(--success-color);
    font-family: 'Courier New', monospace;
}

/* 快速开始 */
.quick-start {
    background-color: var(--card-bg);
    padding: 3rem;
    border-radius: 10px;
}

.quick-start h3 {
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-size: 2rem;
    text-align: center;
}

.command-examples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.command-card {
    background-color: var(--darker-bg);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
}

.command-card h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.command-card pre {
    background-color: var(--dark-bg);
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
}

.command-card code {
    color: var(--success-color);
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
}

/* 页脚 */
.footer {
    background-color: var(--darker-bg);
    padding: 3rem 0 1rem;
    margin-top: 5rem;
}

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

.footer-section h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.footer-section p,
.footer-section ul {
    color: var(--gray-text);
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--gray-text);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid var(--card-bg);
    padding-top: 1rem;
    text-align: center;
    color: var(--gray-text);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.3rem;
    }

    .nav-links {
        gap: 1rem;
        font-size: 0.9rem;
    }

    .features-grid,
    .download-grid,
    .command-examples {
        grid-template-columns: 1fr;
    }

    .install-guide,
    .quick-start {
        padding: 2rem 1.5rem;
    }
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 代码块样式优化 */
code {
    background-color: var(--darker-bg);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    color: var(--success-color);
}