/* 全局样式 */
:root {
    --primary-color: #FFC107; /* 小蜜蜂黄色 */
    --secondary-color: #222222;
    --accent-color: #FF9800;
    --text-color: #333333;
    --light-text: #666666;
    --light-bg: #F8F9FA;
    --dark-bg: #222222;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--text-color);
    line-height: 1.6;
}

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

ul {
    list-style: none;
}

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

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

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
    color: var(--secondary-color);
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--accent-color);
    transform: translateY(-2px);
}

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

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

.btn-download {
    background-color: var(--primary-color);
    color: var(--dark-bg);
    font-size: 1.2rem;
    padding: 15px 40px;
    margin-top: 20px;
}

.btn-download:hover {
    background-color: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

/* 头部样式 */
header {
    background-color: #fff;
    box-shadow: var(--box-shadow);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo img {
    height: 50px;
    width: auto;
}

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

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

nav a {
    font-weight: 600;
    color: var(--secondary-color);
}

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

/* 英雄区域样式 */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f5f5 0%, #e0e0e0 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-content {
    max-width: 500px;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--light-text);
    margin-bottom: 30px;
}

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

.hero-image {
    text-align: right;
}

.hero-image img {
    max-width: 80%;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* 功能特点区域样式 */
.features {
    padding: 80px 0;
    background-color: var(--light-bg);
}

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

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

.feature-card:hover {
    transform: translateY(-10px);
}

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

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

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

/* 下载区域样式 */
.download {
    padding: 80px 0;
    background-color: #fff;
}

.download-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    background-color: var(--light-bg);
}

.download-info {
    margin-bottom: 20px;
}

.download-info h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.download-info p {
    color: var(--light-text);
    margin-bottom: 10px;
}

/* 关于我们区域样式 */
.about {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

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

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-logo-img {
    height: 40px;
    width: auto;
}

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

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

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

.copyright p {
    margin-bottom: 10px;
    color: rgba(255, 255, 255, 0.7);
}

.copyright a {
    color: rgba(255, 255, 255, 0.9);
}

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

/* 响应式设计 */
@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-image {
        text-align: center;
        margin-top: 30px;
    }
    
    .hero-image img {
        max-width: 60%;
    }
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        gap: 20px;
    }
    
    nav ul {
        gap: 15px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-content h2 {
        font-size: 2.5rem;
    }
    
    .footer-content {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 576px) {
    .cta-buttons {
        flex-direction: column;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-image img {
        max-width: 80%;
    }
    
    .footer-links ul {
        flex-wrap: wrap;
        justify-content: center;
    }
}