/* 全局样式 */
body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    color: #fff;
    background-color: #0a192f;
}

header {
    background-image: url('assets/bg.jpg');
    background-size: cover;
    background-position: center;
    text-align: center;
    padding: 150px 0;
    position: relative;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
}

header h1 {
    font-size: 4em;
    margin: 0;
    position: relative;
    z-index: 1;
}

header p {
    font-size: 1.5em;
    position: relative;
    z-index: 1;
}

nav {
    background-color: rgba(10, 25, 47, 0.9);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
}

nav ul li {
    margin: 0 20px;
}

nav ul li a {
    color: #64ffda;
    text-decoration: none;
    padding: 15px 0;
    display: block;
    transition: color 0.3s ease;
    position: relative;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 10px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #64ffda;
    transition: width 0.3s ease;
}

nav ul li a:hover::after {
    width: 100%;
}

main {
    padding: 80px 15%;
}

section {
    margin-bottom: 80px;
}

h2 {
    font-size: 2.5em;
    color: #64ffda;
    margin-bottom: 30px;
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 80px;
    height: 3px;
    background-color: #64ffda;
}

p {
    font-size: 1.1em;
    line-height: 1.8;
    color: #a8b2d1;
}

footer {
    background-color: #020c1b;
    text-align: center;
    padding: 20px 0;
}

.contact-info p {
    margin: 10px 0;
}

.contact-info a {
    color: #64ffda;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-info a:hover {
    color: #fff;
}