body {
    margin: 0;
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
}


.transparency-section {
    padding: 20px;
    max-width: 1200px; 
    margin: 0 auto; 
    box-sizing: border-box; 
}


.article-container {
    display: flex; 
    flex-direction: row; 
    gap: 20px;
    margin-top: 20px;
    flex-wrap: nowrap; 
    align-items: flex-start; 
}


.article-menu {
    flex: 0 0 280px;
    padding: 20px;
    border-right: 1px solid #eee;
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1); 
    border-radius: 8px; 
    box-sizing: border-box;
}

.article-menu h3 {
    color: #b71c1c; 
    margin-top: 0;
    padding-bottom: 10px;
    border-bottom: 2px solid #b71c1c;
    font-size: 1.4em;
    text-align: center;
    margin-bottom: 20px;
}

.article-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.article-menu li {
    margin-bottom: 8px;
}
.article-menu li a {
    display: block;
    padding: 10px 15px;
    text-decoration: none;
    color: #444;
    border-radius: 6px;
    transition: background-color 0.3s ease, color 0.3s ease;
    font-size: 1em;
    font-weight: normal;
}
.article-menu li a:hover {
    background-color: #d14141;
    color: #fff;
}
.article-menu li a.active {
    background-color: #b71c1c; 
    color: #fff;
    font-weight: bold;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}


.article-content {
    flex-grow: 1; 
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    border-radius: 8px;
    box-sizing: border-box;
    min-width: 0; 
}

.article-content h2 {
    color: #b71c1c;
    margin-top: 0;
    margin-bottom: 25px;
    border-bottom: 2px solid #b71c1c;
    padding-bottom: 15px;
    font-size: 1.8em;
    text-align: center;
}


.fraction-menu {
    margin-bottom: 25px;
    border-bottom: 1px solid #eee;
    padding-bottom: 15px;
}
.fraction-menu h4 {
    color: #555;
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.2em;
    text-align: center;
}
.fraction-menu ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap; 
    gap: 10px; 
    justify-content: center;
}
.fraction-menu li {
    flex-shrink: 0; 
}
.fraction-menu li a {
    display: block;
    padding: 8px 15px;
    background-color: #eee;
    border-radius: 20px; 
    text-decoration: none;
    color: #333;
    white-space: nowrap; 
    transition: background-color 0.3s ease, color 0.3s ease;
    font-size: 0.95em;
    border: 1px solid #ddd;
}
.fraction-menu li a:hover {
    background-color: #d14141;
    color: #fff;
}
.fraction-menu li a.active {
    background-color: #b71c1c;
    color: #fff;
    font-weight: bold;
    border-color: #b71c1c;
}


.fraction-display {
    margin-top: 20px;
}
.fraction-display h3 {
    color: #b71c1c;
    margin-bottom: 20px;
    font-size: 1.5em;
    text-align: center;
}
.fraction-content { 
    line-height: 1.7;
    font-size: 1.05em;
    padding: 10px;
    background-color: #fcfcfc;
    border-radius: 6px;
    border: 1px solid #eee;
}


.fraction-intro-text {
    background-color: #f0f0f0;
    padding: 15px 20px;
    margin-bottom: 20px;
    border-left: 5px solid #b71c1c;
    border-radius: 4px;
    line-height: 1.8;
    font-size: 1.05em;
    color: #555;
    text-align: justify;
}


.fraction-intro-text a.intro-link {
    color: #808080 !important; 
    text-decoration: underline;
    font-weight: bold;
    transition: color 0.3s ease;
   
    display: block; 
   
    margin-bottom: 5px; 
}

.fraction-intro-text a.intro-link:hover {
    color: #b71c1c !important; 
    text-decoration: none; 
}

.fraction-intro-text a.intro-link:visited {
    color: #808080 !important;
}


.file-item {
    margin-bottom: 15px; 
    
    padding-bottom: 10px;
}
.file-item:last-child {
    margin-bottom: 0;
    border-bottom: none; 
    padding-bottom: 0;
}
.file-item a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: #333;
}
.file-item img {
    margin-bottom: 8px; 
    width: 48px;
    height: auto;
}


.table-responsive {
    overflow-x: auto; 
    -webkit-overflow-scrolling: touch; 
    margin-bottom: 20px;
    border: 1px solid #ddd; 
    border-radius: 8px;
}
.data-table {
    width: 100%; 
    border-collapse: collapse;
    min-width: 700px; 
}
.data-table th, .data-table td {
    border: 1px solid #e0e0e0;
    padding: 15px;
    text-align: center;
    vertical-align: top;
    white-space: normal; 
    font-size: 0.95em;
}
.data-table th {
    background-color: #f8f8f8;
    font-weight: bold;
    color: #333;
    text-transform: uppercase;
    font-size: 0.9em;
}

.data-table td a {
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    text-decoration: none;
    color: #333; 
    font-size: 0.9em;
    margin-top: 5px;
}
.data-table td a:hover {
    color: #b71c1c; 
}
.data-table td img {
    display: block;
    margin: 0 auto 8px; 
    width: 48px; 
    height: auto;
}


.update-info {
    margin-top: 30px;
    padding: 20px;
    background-color: #f0f8ff; 
    border-left: 5px solid #2196F3; 
    border-radius: 8px;
    font-size: 0.95em;
    color: #444;
}
.update-info p {
    margin: 8px 0;
}
.update-info strong {
    color: #2196F3; 
}




@media (max-width: 992px) {
    .article-menu {
        flex: 0 0 220px;
        padding: 15px;
    }
    .article-menu h3 {
        font-size: 1.3em;
    }
    .article-menu li a {
        font-size: 0.95em;
        padding: 8px 10px;
    }
    .article-content {
        padding: 15px;
    }
    .article-content h2 {
        font-size: 1.6em;
    }
    .fraction-menu h4 {
        font-size: 1.1em;
    }
    .fraction-menu li a {
        padding: 6px 12px;
        font-size: 0.9em;
    }
    .data-table th, .data-table td {
        padding: 10px;
        font-size: 0.9em;
    }
    .data-table td img {
        width: 40px; 
    }
    .fraction-intro-text { 
        padding: 12px 18px;
        font-size: 1em;
    }
}


@media (max-width: 768px) {
    .article-container {
        flex-direction: column; 
        gap: 15px; 
    }

    .article-menu {
        width: 100%; 
        border-right: none; 
        border-bottom: 1px solid #ccc; 
        padding: 15px;
        order: 1; 
    }
    .article-menu ul {
        display: flex; 
        flex-wrap: wrap; 
        gap: 8px; 
        justify-content: center;
    }
    .article-menu li {
        flex-basis: auto; 
        margin-bottom: 0;
    }
    .article-menu li a {
        padding: 8px 12px;
        font-size: 0.9em;
        white-space: nowrap; 
    }

    .article-content {
        width: 100%; 
        padding: 15px;
        order: 2; 
    }
    .article-content h2 {
        font-size: 1.5em;
        margin-bottom: 20px;
    }

    .fraction-menu {
        margin-bottom: 20px;
        padding-bottom: 10px;
    }
    .fraction-menu h4 {
        font-size: 1.1em;
        margin-bottom: 10px;
    }
    .fraction-menu ul {
        flex-direction: column; 
        gap: 8px;
    }
    .fraction-menu li {
        width: 100%; 
        text-align: center;
    }
    .fraction-menu li a {
        padding: 10px; 
        font-size: 1em;
        white-space: normal; 
        width: 100%; 
        box-sizing: border-box;
    }
    .data-table {
        min-width: 500px; 
    }
    .data-table th, .data-table td {
        padding: 8px;
        font-size: 0.85em;
    }
    .data-table td img {
        width: 35px; 
    }

    .update-info {
        padding: 15px;
        font-size: 0.9em;
    }

    .fraction-intro-text { 
        padding: 10px 15px;
        margin-bottom: 15px;
        font-size: 0.95em;
    }
    .file-item {
        margin-bottom: 10px;
        padding-bottom: 8px;
    }
    .file-item img {
        width: 35px; 
        height: auto;
    }
    .file-item a {
        font-size: 0.85em; 
    }
}


@media (max-width: 480px) {
    .transparency-section {
        padding: 10px;
    }
    .article-menu {
        padding: 10px;
    }
    .article-menu h3 {
        font-size: 1.1em;
        padding-bottom: 5px;
        margin-bottom: 10px;
    }
    .article-menu ul {
        gap: 5px;
    }
    .article-menu li a {
        padding: 6px 8px;
        font-size: 0.8em;
    }

    .article-content {
        padding: 10px;
    }
    .article-content h2 {
        font-size: 1.3em;
        margin-bottom: 15px;
    }

    .fraction-menu {
        margin-bottom: 15px;
        padding-bottom: 8px;
    }
    .fraction-menu h4 {
        font-size: 1em;
        margin-bottom: 8px;
    }
    .fraction-menu li a {
        padding: 8px;
        font-size: 0.9em;
    }

    .data-table {
        min-width: 380px; 
    }
    .data-table th, .data-table td {
        padding: 6px;
        font-size: 0.75em;
    }
    .data-table td img {
        width: 30px;
        margin-bottom: 3px;
    }

    .update-info {
        padding: 10px;
        font-size: 0.8em;
    }
}