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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #fff;
    color: #333;
    line-height: 1.6;
}

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

/* ========== 导航栏 ========== */
.navbar {
    background: #1a1a2e;
    color: white;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.logo a {
    color: white;
    text-decoration: none;
}

.logo span {
    color: #e94560;
}

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

.nav-links a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    color: #e94560;
}

/* ========== 按钮 ========== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: #e94560;
    color: white;
}

.btn-primary:hover {
    background: #c73e56;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 2px solid #e94560;
    color: #e94560;
}

.btn-outline:hover {
    background: #e94560;
    color: white;
}

/* ========== Hero 区域 ========== */
.hero {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* ========== 功能卡片 ========== */
.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
}

.section-title:after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: #e94560;
    margin: 15px auto 0;
}

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

.feature-card {
    text-align: center;
    padding: 2rem;
    border: 1px solid #eee;
    border-radius: 10px;
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

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

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

/* ========== 价格卡片 ========== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.pricing-card {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s;
}

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

.pricing-card.featured {
    background: linear-gradient(135deg, #e94560, #c73e56);
    color: white;
    transform: scale(1.05);
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.price {
    font-size: 3rem;
    font-weight: bold;
    margin: 1rem 0;
}

.price small {
    font-size: 0.9rem;
}

.pricing-card ul {
    list-style: none;
    margin: 1.5rem 0;
}

.pricing-card li {
    padding: 0.5rem 0;
}

/* ========== 下载区域 ========== */
.download-section {
    background: #f8f9fa;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.download-btn {
    background: #1a1a2e;
    color: white;
    padding: 1rem 2rem;
    border-radius: 10px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.3s;
}

.download-btn:hover {
    transform: translateY(-3px);
    background: #e94560;
}

.download-icon {
    font-size: 2rem;
}

/* ========== 公告列表 ========== */
.news-list {
    max-width: 800px;
    margin: 0 auto;
}

.news-item {
    border-bottom: 1px solid #eee;
    padding: 1.5rem 0;
}

.news-item h3 {
    margin-bottom: 0.5rem;
}

.news-item h3 a {
    color: #333;
    text-decoration: none;
}

.news-item h3 a:hover {
    color: #e94560;
}

.news-meta {
    color: #999;
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

/* ========== 页脚 ========== */
.footer {
    background: #1a1a2e;
    color: #999;
    text-align: center;
    padding: 3rem 0;
    margin-top: 3rem;
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-links {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
    
    .section {
        padding: 50px 0;
    }
}

/* ========== 支付模态框 ========== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1001;
}

.modal-content {
    background: white;
    width: 90%;
    max-width: 400px;
    margin: 100px auto;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
}

.qrcode {
    margin: 1rem 0;
}

.qrcode img {
    width: 200px;
    height: 200px;
}

.close {
    float: right;
    font-size: 1.5rem;
    cursor: pointer;
}