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

body {
    font-family: 'Inter', sans-serif;
    color: #fff;
    background-color: #000;
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: 1400px;
    margin: 0 auto;
}

/* 按钮样式 */
.btn-primary {
    background: linear-gradient(90deg, #6a11cb 0%, #2575fc 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease;
}

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

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    padding: 20px 0;
    transition: background-color 0.3s ease;
}

.navbar.scrolled {
    background-color: rgba(0, 0, 0, 0.8);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    color: white;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 400;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #2575fc;
}

.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
}

/* 英雄区域 - 背景视频样式 */
.hero {
    position: relative;
    height: 100vh;
    width: 100%;
    overflow: hidden;
}

.video-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#bg-video {
    width: 100%;
    height: 100%;
    object-fit: cover; /* 确保视频覆盖整个容器，保持比例 */
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6); /* 半透明黑色遮罩 */
    z-index: 2;
}

.hero-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 3;
    text-align: center;
    width: 100%;
}

.hero-content h1 {
    font-size: 5vw;
    font-weight: 800;
    margin-bottom: 20px;
    text-transform: uppercase;
    line-height: 1.2;
}

.hero-content h1 span {
    background: linear-gradient(90deg, #6a11cb 0%, #2575fc 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-content p {
    font-size: 1.5vw;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* 内容区域样式 */
.content-section {
    padding: 100px 0;
    background-color: #0a0a0a;
}

.content-section h2 {
    font-size: 40px;
    margin-bottom: 30px;
    text-align: center;
}

.content-section p {
    font-size: 18px;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    opacity: 0.8;
}

/* 页脚样式 */
footer {
    background-color: #000;
    padding: 60px 0 30px;
}

.footer-content {
    text-align: center;
}

.footer-logo {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

.social-links a {
    color: white;
    font-size: 20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid white;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-links a:hover {
    background: linear-gradient(90deg, #6a11cb 0%, #2575fc 100%);
    border-color: transparent;
    transform: translateY(-3px);
}

footer p {
    font-size: 14px;
    opacity: 0.6;
}

/* 响应式设计 - 移动端适配 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    .hero-content h1 {
        font-size: 8vw;
    }

    .hero-content p {
        font-size: 4vw;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
}