/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    background: #0a0e17;
    color: #fff;
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 通用部分样式 */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #fff 30%, #D4AF37 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.highlight {
    color: #D4AF37;
    -webkit-text-fill-color: #D4AF37;
}

.section-subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.7);
    max-width: 600px;
    margin: 0 auto;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, #D4AF37 0%, #F4DF9A 100%);
    color: #2A0B43;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(212, 175, 55, 0.4);
}

.btn-outline {
    background: transparent;
    border-color: #D4AF37;
    color: #D4AF37;
}

.btn-outline:hover {
    background: rgba(212, 175, 55, 0.1);
    transform: translateY(-3px);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 14, 23, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
    z-index: 1000;
    padding: 15px 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo i {
    color: #D4AF37;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-item a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 500;
    padding: 8px 0;
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.3s ease;
}

.nav-item a:hover {
    color: #D4AF37;
}

.nav-item.active a {
    color: #D4AF37;
}

.nav-item a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: #D4AF37;
    transition: width 0.3s ease;
}

.nav-item.active a::after,
.nav-item a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
}

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

/* 页脚 */
.footer {
    background: rgba(10, 14, 23, 0.95);
    border-top: 1px solid rgba(212, 175, 55, 0.1);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #fff;
}

.footer-logo i {
    color: #D4AF37;
}

.footer-desc {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 25px;
    line-height: 1.6;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(42, 11, 67, 0.5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #D4AF37;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: #D4AF37;
    color: #2A0B43;
    transform: translateY(-3px);
}

.footer-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 25px;
    color: #fff;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #D4AF37;
    padding-left: 5px;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact i {
    color: #D4AF37;
    width: 20px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.footer-bottom a {
    color: rgba(212, 175, 55, 0.8);
    text-decoration: none;
    margin: 0 10px;
}

.footer-bottom a:hover {
    color: #D4AF37;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #D4AF37 0%, #F4DF9A 100%);
    border: none;
    border-radius: 50%;
    color: #2A0B43;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(212, 175, 55, 0.4);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px); /* 添加高度 */
        background: rgba(10, 14, 23, 0.98);
        backdrop-filter: blur(10px); /* 添加模糊效果 */
        flex-direction: column;
        align-items: center;
        padding: 40px 0;
        transition: left 0.3s ease;
        gap: 0;
        z-index: 999; /* 添加 z-index，确保在最上层 */
        overflow-y: auto; /* 允许滚动 */
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        width: 100%;
        text-align: center;
    }
    
    .nav-item a {
        padding: 20px 15px; /* 增加内边距 */
        justify-content: center;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        font-size: 1.1rem; /* 字体稍大 */
    }
    
    .menu-toggle {
        display: block;
        background: rgba(212, 175, 55, 0.1); /* 添加背景 */
        border: 1px solid rgba(212, 175, 55, 0.3);
        border-radius: 4px;
        padding: 8px 12px;
        transition: all 0.3s ease;
    }
    
    .menu-toggle:hover {
        background: rgba(212, 175, 55, 0.2);
    }
    
    .nav-cta {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-contact li {
        justify-content: center;
    }
}