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

/* CSS变量定义 */
:root {
    --primary-color: #409EFF;
    --secondary-color: #67C23A;
    --accent-color: #E6A23C;
    --danger-color: #F56C6C;
    --dark-color: #303133;
    --gray-color: #606266;
    --light-gray: #909399;
    --border-color: #E4E7ED;
    --background-color: #F5F7FA;
    --white: #FFFFFF;
    --shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* 基础样式 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--background-color);
}

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

/* 标题样式 */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    font-weight: 600;
    color: var(--dark-color);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

/* 段落样式 */
p {
    margin-bottom: 1rem;
    color: var(--gray-color);
}

/* 链接样式 */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: #66B1FF;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: #66B1FF;
    color: var(--white);
}

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

.btn-secondary:hover {
    background-color: #ECF5FF;
}

/* 导航栏样式 */
.navbar {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo h1 {
    font-size: 1.8rem;
    margin: 0;
    color: var(--primary-color);
}

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

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    color: var(--gray-color);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
}

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

.nav-links a.active::after,
.nav-links a:hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

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

/* 英雄区域样式 */
.hero {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 6rem 0;
    text-align: center;
}

.hero h2 {
    color: var(--white);
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

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

/* 部分标题样式 */
.section-title {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
}

/* 关于我们样式 */
.about {
    padding: 5rem 0;
    background-color: var(--white);
}

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

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text h3 {
    margin-top: 0;
    margin-bottom: 1rem;
}

.about-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.about-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

/* 功能卡片样式 */
.features {
    padding: 5rem 0;
    background-color: var(--background-color);
}

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

.feature-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
}

/* 优势列表样式 */
.advantages {
    padding: 5rem 0;
    background-color: var(--white);
}

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

.advantage-item {
    padding: 2rem;
    background-color: var(--background-color);
    border-radius: 8px;
    transition: var(--transition);
}

.advantage-item:hover {
    box-shadow: var(--shadow);
}

.advantage-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* 快速开始步骤样式 */
.quick-start {
    padding: 5rem 0;
    background-color: var(--background-color);
}

.quick-start-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.step::after {
    content: '';
    position: absolute;
    top: 30px;
    right: -50%;
    width: 100%;
    height: 2px;
    background-color: var(--border-color);
    z-index: 1;
}

.step:last-child::after {
    display: none;
}

/* 页脚样式 */
.footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding: 3rem 0 1rem;
}

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

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-section p,
.footer-section li {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0.5rem;
}

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

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

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

.footer-section i {
    margin-right: 0.5rem;
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        align-items: center;
        padding: 1rem 0;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
        pointer-events: none;
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-links li {
        margin: 1rem 0;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 200px;
    }
    
    .about-content {
        flex-direction: column;
        text-align: center;
    }
    
    .quick-start-steps {
        grid-template-columns: 1fr;
    }
    
    .step::after {
        display: none;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .features-grid,
    .advantages-list,
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background-color: var(--background-color);
}

::-webkit-scrollbar-thumb {
    background-color: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background-color: #66B1FF;
}


/* 快速开始竖向步骤样式 */
.quick-start-steps-vertical {
    max-width: 900px;
    margin: 0 auto;
}

.step-vertical {
    margin-bottom: 3rem;
    background-color: var(--white);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.step-vertical:hover {
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.step-header {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.step-vertical .step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), #66B1FF);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(64, 158, 255, 0.3);
}

.step-info {
    flex: 1;
}

.step-info h3 {
    margin: 0 0 0.5rem 0;
    color: var(--dark-color);
    font-size: 1.5rem;
}

.step-info p {
    margin: 0;
    color: var(--gray-color);
    font-size: 0.95rem;
}

/* 代码块样式 */
.code-block {
    background-color: #282c34;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.25rem;
    background-color: #21252b;
    border-bottom: 1px solid #181a1f;
}

.code-lang {
    color: #abb2bf;
    font-size: 0.85rem;
    font-weight: 500;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

.copy-btn {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 0.4rem 1rem;
    border-radius: 4px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.copy-btn:hover {
    background-color: #66B1FF;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(64, 158, 255, 0.4);
}

.copy-btn:active {
    transform: translateY(0);
}

.code-block pre {
    margin: 0;
    padding: 1.5rem 1.25rem;
    overflow-x: auto;
    background-color: #282c34;
}

.code-block code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    color: #abb2bf;
    display: block;
}

/* 代码高亮样式 */
.code-block code .comment {
    color: #5c6370;
    font-style: italic;
}

.code-block code .keyword {
    color: #c678dd;
}

.code-block code .string {
    color: #98c379;
}

.code-block code .function {
    color: #61afef;
}

.code-block code .number {
    color: #d19a66;
}

/* 代码块滚动条样式 */
.code-block pre::-webkit-scrollbar {
    height: 8px;
}

.code-block pre::-webkit-scrollbar-track {
    background-color: #21252b;
}

.code-block pre::-webkit-scrollbar-thumb {
    background-color: #4b5263;
    border-radius: 4px;
}

.code-block pre::-webkit-scrollbar-thumb:hover {
    background-color: #5c6370;
}

/* 响应式设计 - 代码块 */
@media (max-width: 768px) {
    .step-header {
        flex-direction: column;
        gap: 1rem;
    }
    
    .step-vertical .step-number {
        width: 45px;
        height: 45px;
        font-size: 1.3rem;
    }
    
    .step-info h3 {
        font-size: 1.3rem;
    }
    
    .code-header {
        flex-direction: column;
        gap: 0.75rem;
        align-items: flex-start;
    }
    
    .copy-btn {
        width: 100%;
        justify-content: center;
    }
    
    .code-block pre {
        padding: 1rem;
    }
    
    .code-block code {
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .step-vertical {
        padding: 1.5rem;
    }
    
    .code-block code {
        font-size: 0.8rem;
    }
}