@font-face {
    font-family: 'Lexend';
    src: url('fonts/Lexend-VariableFont_wght.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'Xiaolai';
    src: url('fonts/Xiaolai-Regular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

body {
    background-image: url('images/slugcat.jpg');
    background-size: cover;
    background-position: center center;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100dvh;
}

.container {
    width: 100vw;
    height: 100dvh;
    background-color: rgba(0, 0, 0, 0.35);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
}

.button-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    width: 100%;
    max-width: 800px;
    padding: 0 20px;
    box-sizing: border-box;
}

.title {
    font-family: 'Lexend', sans-serif;
    font-size: 100px;
    font-weight: 600;
    margin: 0;
    line-height: 1.2;
}

.slogan {
    font-family: 'Xiaolai', serif;
    font-size: 32px;
    margin-top: 10px;
    letter-spacing: 2px;
}

.title-c {
    font-family: 'Xiaolai', serif;
    font-size: 90px;
    font-weight: normal;
    margin: 0;
    line-height: 1.0;
}

.title-e {
    font-family: 'Lexend', 'Xiaolai', sans-serif;
    font-size: 55px;
    font-weight: bold;
    margin: 0;
}

.btn {
    flex-shrink: 0;
    display: inline-block;
    padding: 12px 30px;
    font-family: 'Lexend', 'Xiaolai', sans-serif;
    color: #ffffff;
    text-decoration: none;
    font-size: 18px;
    border: 2px solid;
    border-radius: 50px;
    transition: all 0.3s ease;
    backdrop-filter: blur(12px);
}

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

.about-page {
    height: 100dvh;
    padding: 60px 20px;
    box-sizing: border-box;
    overflow: hidden;
}

.content-card {
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(15px);
    padding: 30px;
    border-radius: 20px;
    max-width: 800px;
    width: 100%;
    max-height: 85vh;
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
}

.article-scroll-area {
    flex: 1;
    overflow-y: auto;
    margin: 20px 0;
    padding-right: 10px;
}

.article-scroll-area::-webkit-scrollbar {
    width: 6px;
}
.article-scroll-area::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 10px;
}

.article {
    font-family: 'Xiaolai', serif;
    line-height: 1.8;
    font-size: 20px;
    text-align: left;
    color: rgba(255, 255, 255, 0.9);
}

.article p {
    margin-bottom: 20px;
}