.research-list-section {
    padding: 2rem 0;
}

.research-list-title {
    font-size: 1.7rem;
    font-weight: bold;
    margin-bottom: 1.2rem;
    text-align: center;
}

.research-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    padding-left: 0.2rem;
}

.research-item {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    background: none;
    border-radius: 0;
    box-shadow: none;
    padding: 0.18rem 0.2rem 0.12rem 0.2rem;
    font-size: 0.98rem;
    border-bottom: 1px solid #eee;
    gap: 0.7rem;
}

.research-item:last-child {
    border-bottom: none;
}

.research-item-number {
    font-size: 1.1em;
    font-weight: bold;
    color: #111; /* Black */
    min-width: 2em;
    text-align: right;
    margin-right: 0.2em;
    flex-shrink: 0;
}

.research-item-title {
    font-size: 1em;
    font-weight: bold; /* Bold */
    color: #111; /* Black */
    margin-bottom: 0.05rem;
    text-align: justify;
}

.research-item-authors {
    font-size: 0.92em;
    color: #444;
    margin-bottom: 0.05rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4em;
    text-align: justify;
}

.research-item-links {
    display: flex;
    gap: 0.7em;
    margin-bottom: 0.05rem;
    text-align: justify;
}

.research-item-links a {
    color: rgba(171,0,0,1);
    text-decoration: underline;
    font-size: 0.92em;
}

.research-item-note {
    font-size: 0.88em;
    color: #888;
    margin-top: 0.05rem;
    text-align: justify;
}

.research-summary-frame {
    margin-bottom: 1.5rem;
    padding: 20px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(171,0,0,0.08);
}

.research-summary-title {
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    color: rgba(171,0,0,1);
}

.research-summary-text {
    font-size: 1rem;
    color: #333;
    padding-left: 0.2rem;
    text-align: justify;
}

.research-category-frame {
    margin-bottom: 1.2rem;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(171,0,0,0.08);
}

.research-category-title {
    font-size: 1.1rem;
    font-weight: bold;
    color: rgba(171,0,0,1);
    text-align: center;
    position: relative;
}

.research-category-title::after {
    content: "";
    display: block;
    margin: 0.5rem auto 0 auto;
    width: 100%; /* Full width of parent */
    max-width: 900px; /* Match .research-list-wrapper */
    height: 3px; /* Thicker line */
    background: rgba(171,0,0,1); /* Same color as title */
    border-radius: 1px;
}

.research-list-wrapper {
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    padding-left: 20px; /* Align with items */
    padding-right: 20px;
}

.research-year-label {
    font-size: 1em;
    font-weight: bold;
    color: #111; /* Black */
    margin: 0.7rem 0 0.2rem 0;
    padding-left: 0;
    border-bottom: none;
    padding-bottom: 0.05rem;
}

@media (max-width: 700px) {
    .research-list-section {
        padding: 1rem 0.2rem;
    }
    .research-category-frame {
        padding: 0.7rem 0.5rem;
    }
    .research-list {
        padding-left: 0.05rem;
    }
    .research-item {
        padding: 0.18rem 0.05rem 0.12rem 0.05rem;
        font-size: 0.97rem;
    }
    .research-list-title {
        font-size: 1.2rem;
    }
    .research-category-frame {
        padding: 0.7rem 0.5rem;
    }
    .research-category-title {
        padding-left: 0.5rem;
    }
    .research-list-wrapper {
        padding-left: 0.5rem;
    }
}