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.project-parent { color: #262626; text-decoration: none; letter-spacing: 0; font-size: 14px; padding: 7px 18px; }
.project-parent:hover { background: #d8d8d8; }
.project-parent:focus-visible { outline: 2px solid #666; outline-offset: 3px; }

/* 正文中的普通图片和 figure 图片均限制在内容区内。 */
.project-content img {
    display: block;
    box-sizing: border-box;
    max-width: 100%;
    height: auto;
    object-fit: contain;
    margin: 20px auto;
    border-radius: 9px;
}
.project-content figure {
    box-sizing: border-box;
    min-width: 0;
    max-width: 100%;
}
.project-content figure img { margin: 0 auto; }