* {
    box-sizing: border-box;
}

body {
    background-color: rgb(64, 86, 95);
    color: white;
    line-height: 1.5;
    padding: 0;
    margin: 0;
    font-family: system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";
    counter-reset: citation-counter footnote-counter;
}

iframe, video {
    aspect-ratio: 4;
}

img {
    /* background-color: #111; */
    aspect-ratio: auto;
}

a {
    color: #68a2ff;
    text-decoration: none;
}

/* ===== 头部和导航 ===== */
#home {
    position: absolute;
    top: 20px;
    left: max(calc(50vw - 1920px/2 + 192px), 10%);
}

#logo {
    width: 40px;
    height: 40px;
    position: fixed;
    top: 12px;
    right: max(calc(50vw - 1920px/2 + 192px), 10%);
    z-index: 1001;
}

#hero-content {
    padding-top: 100px;
    padding-bottom: 40px;
    padding-left: 0;
    padding-right: 0;
}

#hero-content h1 {
    font-size: 80px;
    font-weight: 500;
    margin: 20px auto;
    text-align: center;
    width: fit-content;
}

#hero-content h2 {
    margin: 22px auto;
    font-weight: 500;
    text-align: center;
    width: fit-content;
}

#hero-content p {
    font-size: 20px;
    margin: 20px auto;
    font-weight: 500;
    text-align: center;
    width: fit-content;
}

#hero-content p.authors {
    margin: 10px auto 0;
    font-size: 16px;
    font-weight: 500;
}

#hero-content p.affiliation {
    font-size: 20px;
    margin: 5px auto 10px;
    font-weight: 500;
}

.multi-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin: 50px 0 -50px;
}

.file-button {
    display: inline-flex;
    text-align: center;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 24px;
    background-color: rgb(64, 86, 95);
    border-color: white;
    border-width: 2px;
    border-style: solid;
    color: white;
    border-radius: 100px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    /* box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05); */
}

.file-button:hover {
    background-color: white;
    color: black;
    transform: translateY(-2px);
    /* box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15); */
}

.file-icon {
    width: 20px;
    height: 20px;
    transition: all 0.3s ease;
}

.file-button:hover .file-icon {
    color: black;
}


section {
    max-width: 1920px;
    margin: 80px auto;
}

section:first-of-type {
    margin-top: 0;
}

.section-content {
    padding: 0 15%;
    text-align: justify;
    margin: 10px 0;
}

.section-title {
    top: 0;
    padding: 20px 10%;
    font-size: 1.5em;
    font-weight: 600;
    z-index: 1000;
    min-height: 60px;
    box-sizing: border-box;
    text-align: center;
}

.section-video-container {
    top: 0;
    padding: 20px 0;
    font-size: 20px;
    font-weight: 600;
    z-index: 1000;
    min-height: 60px;
    box-sizing: border-box;
    text-align: center;
    margin: 0 0;
}


.table-container {
    margin: 20px 0 0;
    padding: 0 20%;
    border-radius: 5px;
    overflow: hidden;
    /* background-color: white; */
    /* color: black; */
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    /* background-color: white; */
    text-align: center;
}
caption {
    caption-side: bottom;
    text-align: left;
    /* padding: 10px 15px; */
    /* background-color: #f8f9fa; */
    font-size: 13px;
    border-top: 1px solid #dee2e6;
}
th, td {
    padding: 5px 10px;
    text-align: center;
    border: 1px solid #dee2e6;
}
thead th {
    /* background-color: white; */
    /* color: black; */
    font-weight: bold;
}

/* tbody tr:nth-child(even) {
    background-color: white;
}
tbody tr:hover {
    background-color: white;
}
.group-header {
    background-color: white;
}
.sub-header {
    background-color: white;
} */
.method-column {
    font-weight: bold;
    vertical-align : middle;
    text-align: center;
}
.highlight {
    font-weight: bold;
    /* color: black; */
}
.underline {
    /* font-weight: bold; */
    /* color: black; */
    text-decoration: underline;
}
.divider {
    border-top: 1px solid #343a40;
}


.gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 5px;
    margin-bottom: 60px;
}



.gallery-one-column {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 5px;
    margin-bottom: 60px;
}

.image-card-one-column {
    /* background:; */
    border-radius: 0px;
    overflow: hidden;
    /* box-shadow: 0 6px 15px rgba(0, 0, 0, 0.5); */
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    padding: 0px 15%;
    margin: 0;
}

.image-card-one-column:hover {
    transform: scale(1.01);
    /* box-shadow: 0 12px 20px rgba(0, 0, 0, 0.5); */
}

.image-row {
    display: contents;
    padding: 0px;
}

.image-card {
    background: white;
    border-radius: 0px;
    overflow: hidden;
    /* box-shadow: 0 6px 15px rgba(0, 0, 0, 0.5); */
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    padding: 0px;
    margin: 0;
}

.image-card:hover {
    transform: translateY(-5px);
    /* box-shadow: 0 12px 20px rgba(0, 0, 0, 0.5); */
}

.image-container {
    overflow: hidden;
    padding: 0px;
}

.image-container img {
    width: 100%;
    height: auto;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.image-card:hover .image-container img {
    transform: scale(1.05);
}

.image-info {
    padding: 20px;
}

.image-title {
    font-size: 1.4rem;
    color: #2c3e50;
    margin-bottom: 10px;
}

.image-description {
    color: #7f8c8d;
    font-size: 1rem;
    line-height: 1.5;
}

footer {
    text-align: center;
    margin-top: 40px;
    padding: 20px;
    color: #7f8c8d;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .gallery {
        grid-template-columns: 1fr;
    }
    
    h1 {
        font-size: 2rem;
    }
}



.citation {
    position: relative;
    display: inline-block;
}

.citation a {
    font-size: 0.8rem;
    vertical-align: baseline;
    /* background-color: #3498db; */
    /* color: white; */
    width: 5px;
    height: 5px;
    /* border-radius: 50%; */
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0 2px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    position: relative;
}

.citation a::before {
    counter-increment: citation-counter;
    content: counter(citation-counter);
}

.citation a:hover {
    /* background-color: #2980b9; */
    transform: scale(1.2);
}

.reference-section {
    /* background: rgb(233, 233, 233); */
    padding: 0 15%;
    margin: 80px 0 200px;
    /* font-size: 12px; */
    text-align: justify;
}

.reference-section h2 {
    /* color: #2c3e50; */
    margin-bottom: 20px;
    /* padding-bottom: 10px; */
    padding: 30px 0 10px;
    /* border-bottom: 1px solid #ababab; */
}

.reference-list {
    list-style-type: none;
    counter-reset: reference-counter;
    margin-block-start: 0;
    margin-block-end: 0;
    padding-inline-start: 0;
}

.reference-list li {
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
    line-height: 1.5;
}

.reference-list li::before {
    content:  counter(reference-counter) ",";
    counter-increment: reference-counter;
    position: absolute;
    left: 0;
    color: #68a2ff;
    font-weight: bold;
}

.reference-list a {
    color: #68a2ff;
    text-decoration: none;
}

.reference-list a:hover {
    text-decoration: underline;
}