/* 重置默认样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
}

/* 头部样式 */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo a {
    font-size: 2.2rem;
    text-decoration: none;
    background: linear-gradient(45deg, #FF6B6B, #4ECDC4);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.logo a:hover {
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 1rem;
}

.nav-links li a {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    text-decoration: none;
    color: #333;
    font-weight: 500;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.nav-links li a:hover {
    background: linear-gradient(45deg, #FF6B6B, #4ECDC4);
    color: white;
}

/* 主要内容区域样式 */
main {
    margin-top: 80px;
}

.main-banner {
    text-align: center;
    padding: 8rem 2rem 6rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
}

.banner-content {
    max-width: 800px;
    margin: 0 auto;
}

.banner-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.banner-text {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.action-container {
    margin-top: 2rem;
}

.action-link {
    display: inline-block;
    padding: 1rem 3rem;
    background: linear-gradient(45deg, #FF6B6B, #4ECDC4);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.action-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    color: white;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .banner-title {
        font-size: 2.5rem;
    }
    
    .banner-text {
        font-size: 1.2rem;
    }
    
    .action-link {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }
}

/* Features区域样式 */
.features {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    background: linear-gradient(45deg, #FF6B6B, #4ECDC4);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

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

.feature-item {
    text-align: center;
    padding: 2.5rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(45deg, #FF6B6B, #4ECDC4);
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
}

.feature-link {
    font-size: 1.2rem !important;
    font-weight: 600 !important;
    color: #333 !important;
    text-decoration: none !important;
    transition: color 0.3s ease !important;
}

.feature-link:hover {
    color: #FF6B6B !important;
}

/* FAQ样式 */
.faq {
    padding: 6rem 2rem;
    background: white;
}

.faq h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
    background: linear-gradient(45deg, #FF6B6B, #4ECDC4);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.faq-container {
    max-width: 1000px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1.5rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.faq-question {
    padding: 1.5rem;
    background: white;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-toggle {
    font-size: 1.5rem;
    color: #FF6B6B;
    transition: transform 0.3s ease;
    font-weight: bold;
}

.faq-answer {
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    background-color: #fff;
}

.faq-answer p {
    padding: 1.5rem;
    margin: 0;
    color: #666;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
    color: #4ECDC4;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

/* Footer样式 */
footer {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 添加Telegram图标样式 */
.telegram-link {
    font-size: 2.5rem !important;
    padding: 1rem !important;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0088cc !important;
    transition: all 0.3s ease !important;
    margin: 0 0.5rem;
}

.telegram-link:hover {
    background: none !important;
    transform: scale(1.2);
    color: #0088cc !important;
}

/* 重写按钮样式 */
.button-wrapper {
    margin: 2rem 0;
}

.pure-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    color: white;
    background: linear-gradient(45deg, #FF6B6B, #4ECDC4);
    border-radius: 30px;
    text-decoration: none;
    transition: transform 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.pure-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

/* 确保链接在移动端也能正常工作 */
@media (max-width: 768px) {
    .pure-button {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }
}

/* 修改导航栏响应式样式 */
@media (max-width: 768px) {
    .navbar {
        flex-wrap: wrap;
        justify-content: center;
        padding: 1rem 3%;
    }

    .logo {
        width: 100%;
        text-align: center;
        margin-bottom: 0.5rem;
    }

    .logo a {
        font-size: 1.8rem;
    }

    .nav-links {
        width: 100%;
        justify-content: center;
        gap: 0.5rem;
        padding: 0.5rem 0;
    }

    .nav-links li a {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }

    /* 调整Telegram图标在移动端的大小 */
    .telegram-link {
        font-size: 1.8rem !important;
        padding: 0.5rem !important;
        margin: 0 0.3rem;
    }

    /* 确保导航项目在小屏幕上始终显示 */
    .nav-links {
        display: flex !important;
        position: static !important;
        background: none;
        box-shadow: none;
    }

    /* 调整主内容区域的上边距，以适应更高的导航栏 */
    main {
        margin-top: 100px;
    }

    /* 调整banner在移动端的内边距 */
    .main-banner {
        padding: 6rem 1rem 4rem;
    }
}

/* 添加更小屏幕的优化 */
@media (max-width: 480px) {
    .logo a {
        font-size: 1.6rem;
    }

    .nav-links li a {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }

    .telegram-link {
        font-size: 1.6rem !important;
    }

    main {
        margin-top: 90px;
    }
}