* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

a {
    transition: all 0.3s ease;
}

.site-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: url('/images/bg.jpg') center no-repeat;
    background-size: cover;
    backdrop-filter: brightness(0.4);
}

header {
    padding-top: 0.5rem;
    color: #fff;
}

header h1 {
    font-size: 2.5rem;
}

main {
    flex-grow: 1;
    padding: 1rem;
    margin: 1rem auto;
    max-width: 60rem;
    overflow: auto;
    width: 100%;
}

.site {
    display: block;
    padding: 1rem;
    margin-bottom: 0.5rem;
    color: #fff;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.site:hover {
    background: rgba(255, 255, 255, 0.1);
}

.site-title {
    font-size: 1.5rem;
    border-left: 4px solid #fff;
    padding-left: 1rem;
    margin-bottom: 0.5rem;
    margin-top: 0;
}

.site-description {
    padding-left: 1.5rem;
    margin-bottom: 0;
    margin-top: 0;
    color: rgba(255, 255, 255, 0.8);
}

.no-websites {
    text-align: center;
    padding: 3rem 0;
    color: #fff;
    font-size: 1.2rem;
}

footer {
    padding-bottom: 0.5rem;
    color: #fff;
}

footer p {
    margin: 0.5rem 0;
}

.beian a {
    color: #fff;
    text-decoration: none;
}

.beian a:hover {
    text-decoration: underline;
}

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

.flex-grow-1 {
    flex-grow: 1;
}