/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary: #ff6b6b;
    --secondary: #4ecdc4;
    --dark: #0f1420;
    --darker: #0a0f1a;
    --light: #e0e0e0;
    --gray: #8c8c8c;
    --card-bg: rgba(20, 25, 40, 0.8);
    --transition: all 0.3s ease;
}

body {
    background-color: var(--dark);
    color: var(--light);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 导航样式 */
.navbar {
    background: rgba(10, 15, 30, 0.85);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
    display: flex;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    padding: 0 20px;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    color: var(--primary);
    text-shadow: 0 0 10px rgba(255, 107, 107, 0.7);
    display: flex;
    align-items: center;
}

.logo i {
    margin-right: 10px;
}

.logo a {
    font-size: 22px;
  font-weight: bold;
  color: var(--primary);
  text-shadow: 0 0 10px rgba(255, 107, 107, 0.7);
    text-decoration: none; 
    font-weight: 500;
    border-radius: 5px;
    transition: var(--transition);
}


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

.nav-links li {
    margin: 0 12px;
}

.nav-links a {
    color: #c0c0c0;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 8px 15px;
    border-radius: 5px;
    transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
    color: #fff;
    background: rgba(255, 107, 107, 0.2);
}

.hamburger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 21px;
}

.hamburger .bar {
    height: 3px;
    width: 100%;
    background-color: #fff;
    border-radius: 10px;
}

/* 按钮样式 */
.btn {
    padding: 15px 35px;
    border-radius: 50px;
    font-size: 18px;
    font-weight: bold;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
}

.btn-download {
    background: linear-gradient(45deg, var(--primary), #ff8e53);
    color: white;
    box-shadow: 0 5px 20px rgba(255, 107, 107, 0.4);
}

.btn-download:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.6);
}

.btn-support {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    backdrop-filter: blur(5px);
}

.btn-support:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

/* 卡片样式 */
.card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.card-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.card-header h3 {
    font-size: 1.5rem;
    color: var(--primary);
}

.card-body {
    padding: 20px;
}

/* 页脚 */
.footer {
    background: #080c15;
    padding: 60px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 1.2rem;
    color: var(--primary);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--primary);
}

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

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

.footer-links a {
    color: var(--gray);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50%;
    transition: var(--transition);
    font-size: 14px;
}

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-5px);
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--gray);
    font-size: 14px;
}

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .hero p {
        font-size: 1.2rem;
    }
        .footer-grid{
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        right: -100%;
        flex-direction: column;
        background: rgba(10, 15, 30, 0.95);
        width: 80%;
        height: calc(100vh - 70px);
        padding: 20px;
        transition: var(--transition);
        backdrop-filter: blur(10px);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links li {
        margin: 15px 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    .footer-grid{
        display: none;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
        .footer-grid{
        display: none;
    }
}