@charset "utf-8";

html,
body {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
}

.bg {
    background-image: url(sky-bg.jpg);
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
}

.header {
    width: 100%;
    height: 8em;
    background-color: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(0.25rem);
    display: flex;
    align-items: center;
    justify-content: center;
}

h1 {
    color: white;
    font-family: SimSun;
    font-weight: 800;
    font-size: 3rem;
    padding: 0;
    margin: 0;
}

h4 {
    color: white;
    font-family: SimSun;
    font-weight: 800;
    font-size: 2rem;
    padding: 0;
    margin: 0;
}

.img1 {
    display: block;
    max-width: 100%;
    max-height: 16rem;
    width: 100%;
    height: 16rem;
    object-fit: cover;
    border-radius: 0.5rem;
    margin: 0 auto;
}

.img2 {
    display: block;
    max-width: 100%;
    max-height: 28rem;
    width: 100%;
    height: 28rem;
    object-fit: cover;
    border-radius: 0.5rem;
    margin: 0 auto;
}

.img3 {
    display: block;
    max-width: 100%;
    max-height: 22rem;
    width: 100%;
    height: 22rem;
    object-fit: cover;
    border-radius: 0.5rem;
    margin: 0 auto;
}

td {
    vertical-align: top;
    padding: 0.625rem;
}

table {
    width: 85%;
    border: none;
    margin-left: auto;
    margin-right: auto;
    border-collapse: separate;
    border-spacing: 1.25rem;
    backdrop-filter: blur(0.7rem);
    position: relative;
    overflow: hidden;
    background-color: rgba(0, 0, 0, 0.4);
}

th {
    padding: 0.625rem;
}

p {
    font-size: 1.5rem;
    font-family: SimSun;
    text-align: justify;
    padding: 0;
    margin: 0;
    color: #FFFFFF;
}

.content {
    max-width: auto;
    margin-left: 2rem;
    padding-top: 2rem;
    padding-bottom: 2rem;
    margin-right: 2rem;
}

button {
    font-size: 1rem;
    padding: 0.8rem 1.6rem;
    border: none;
    cursor: pointer;
    border-radius: 0.25rem;
    background-color: rgba(0, 0, 0, 0.5 );
    backdrop-filter: blur(0.625rem);
    box-shadow: 0 0.25rem 1.875rem rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    color: #FFFFFF;
}

.blank {
    width: 100%;
    height: 4rem;
    margin-bottom: 3rem;
}