:root {
    --primary-color: #ff3366;
    --secondary-color: #7133ff;
    --dark-color: #121212;
    --light-color: #f8f9fa;
    --text-color: #343a40;
    --text-light: #6c757d;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-color);
    background-color: #000;
    overflow-x: hidden;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--dark-color);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* 导航栏样式 */
.navbar {
    background-color: transparent;
    padding: 20px 0;
    transition: var(--transition);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar.scrolled {
    background-color: rgba(0, 0, 0, 0.95);
    padding: 10px 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.8rem;
    color: var(--primary-color) !important;
    letter-spacing: 1px;
}

.navbar-nav .nav-link {
    color: white !important;
    font-weight: 600;
    margin: 0 15px;
    position: relative;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.navbar-nav .nav-link:hover::after {
    width: 100%;
}

.navbar-toggler {
    border: none;
    font-size: 1.5rem;
    color: white;
    padding: 0;
    outline: none !important;
}

.btn-sign-up {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 30px;
    padding: 10px 25px;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(255, 51, 102, 0.3);
}
.btn-login{
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: 30px;
    padding: 10px 25px;
}
.btn-sign-up:hover {
    box-shadow: 0 8px 25px rgba(255, 51, 102, 0.4);
    color: white;
}
.btn-login:hover {
    box-shadow: 0 8px 25px rgba(255, 51, 102, 0.4);
    color: white;
}


/* 页脚 */
.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 80px 0 30px;
}

.footer-logo {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.footer-description {
    color: var(--text-light);
    margin-bottom: 30px;
}

.footer-links h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

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

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

.footer-social {
    margin-top: 20px;
}

.social-icon {
    color: white;
    font-size: 1.5rem;
    margin-right: 20px;
    transition: var(--transition);
}

.social-icon:hover {
    color: var(--primary-color);
}

.footer-bottom {
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    color: var(--text-light);
}

/* 渠道展示区域 */
.channel-section {
    padding: 120px 0;
    background-color: var(--dark-color);
    color: white;
}

.channel-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 30px;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.channel-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.1);
}

.channel-icon {
    width: 80px;
    height: 80px;
    margin: 30px auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    font-size: 2.5rem;
    color: white;
}

.channel-content {
    padding: 0 30px 30px;
    text-align: center;
}

.channel-name {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: white;
}

.channel-description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
    line-height: 1.6;
}

.channel-stats {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

/* 平台优势区域 */
.platform-section {
    padding: 120px 0;
    background-color: var(--light-color);
}

.platform-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: var(--transition);
    height: 100%;
}

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