.entry-header .header-title-wrap h1 { color: #fff !important; }
.entry-header .header-title-wrap h2 { color: #fff !important; }

/* Fix header styling */
.header-title-wrap h1 { color: #fff !important; }
.header-title-wrap h2 { color: #fff !important; }

/* Main content layout */
#main {
    max-width: 800px;
    margin: 0 auto;
    padding-top: 2em;
}

/* Post styles */
.hentry {
    margin-bottom: 3em;
    border-bottom: 1px solid #eee;
    padding-bottom: 2em;
}

.hentry:last-child {
    border-bottom: none;
}

/* Typography updates */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
    color: #333;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

/* Entry image adjustments */
.entry-image-index img {
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.entry-image-index img:hover {
    transform: translateY(-5px);
}

.entry-title a {
    color: #222;
    text-decoration: none;
    transition: color 0.2s ease;
}

.entry-title a:hover {
    color: #007bff;
}

.entry-meta {
    color: #888;
    font-size: 0.9em;
    margin-bottom: 15px;
}

.entry-meta a {
    color: #888;
    text-decoration: none;
}

.entry-meta a:hover {
    color: #007bff;
}

/* Read more button */
.btn {
    display: inline-block;
    padding: 8px 16px;
    background-color: #222;
    color: #fff !important;
    text-decoration: none !important;
    border-radius: 4px;
    font-size: 0.9em;
    margin-top: 15px;
    transition: background-color 0.2s ease;
}

.btn:hover {
    background-color: #555;
    color: #fff !important;
    border-bottom: none !important;
}

/* HPSTR numbers headings (1. / 1.1.). Blog posts keep them, matching the HPSTR post template.
   About/research/software have h3s with no parent h2, so they would all become "0.1." */
body:not(#post) .entry-content h2:before,
body:not(#post) .entry-content h3:before,
body:not(#post) .entry-content h4:before,
body:not(#post) .entry-content h5:before,
body:not(#post) .entry-content h6:before {
    content: none;
    counter-increment: none;
}

/* Menu submenu list items fix */
.dl-menuwrapper li .dl-submenu li {
    padding: 0;
}

.dl-menuwrapper li .dl-submenu li h4 {
    margin: 8px 0 2px;
    padding: 0 16px;
    font-size: 1.05em;
    line-height: 1.25;
    text-align: center;
}

.dl-menuwrapper li .dl-submenu li p {
    margin: 0;
    padding: 0 16px 10px;
    font-size: 0.78em;
    line-height: 1.3;
    text-align: center;
}

.dl-menuwrapper .dl-submenu .btn {
    margin: 0;
    padding: 4px 14px;
    line-height: 20px;
    background: transparent !important;
    color: #fff !important;
    border: 1px solid rgba(255, 255, 255, 0.92) !important;
    border-radius: 3px;
    box-shadow: none;
}

.dl-menuwrapper .dl-submenu li > a:has(.btn) {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 50px;
    padding: 0 16px;
    background: transparent !important;
    border-bottom: none !important;
    line-height: normal;
}

.dl-menuwrapper .dl-submenu li > a:has(.btn):hover,
.dl-menuwrapper .dl-submenu li > a:has(.btn):focus {
    background: transparent !important;
}

.dl-menuwrapper .dl-submenu .btn:hover,
.dl-menuwrapper .dl-submenu li > a:has(.btn):hover .btn {
    background: #fff !important;
    color: #222 !important;
    border-color: #fff !important;
}

/* Institution chips */
.entry-content p.about-affiliations {
    text-align: left;
    line-height: 1.85;
}

.org {
    display: inline-flex;
    align-items: center;
    gap: 0.22em;
    margin: 0 0.04em;
    color: #c8102e;
    font-weight: 650;
    white-space: nowrap;
    vertical-align: -0.18em;
    line-height: 1;
    text-decoration: none;
    border-bottom: none !important;
    transition: color 180ms ease, transform 160ms ease-out;
}

.org:visited {
    color: #c8102e;
}

.org:hover,
.org:focus {
    color: #9a0c24;
    border-bottom: none !important;
}

.org:active {
    transform: scale(0.97);
}

.org img {
    display: block;
    width: 1.2em !important;
    height: 1.2em !important;
    max-width: 1.2em;
    object-fit: contain;
    object-position: center;
    flex-shrink: 0;
    border-radius: 0;
    background: transparent;
}

.software-project {
    margin: 1.8em 0 0;
    padding: 0 0 1.4em;
    background: none;
    box-shadow: none;
    border-radius: 0;
    border-bottom: 1px solid #ececec;
}

.software-project:last-of-type {
    border-bottom: none;
    padding-bottom: 0;
}

.software-project-copy h3 {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: flex-start;
    gap: 0.7em 1em;
    margin: 0 0 0.3em;
    font-size: 1.15em;
}

.software-project-copy h3 > a {
    display: inline;
    color: #222;
    text-decoration: none;
    border-bottom: none !important;
}

.software-project-copy h3 > a:hover,
.software-project-copy h3 > a:focus {
    color: #007bff;
    border-bottom: none !important;
}

.repo-stats {
    display: inline-flex;
    align-items: center;
    gap: 0.85em;
    flex-shrink: 0;
    font-size: 13px;
    font-weight: 500;
    color: #888;
    letter-spacing: 0;
}

.repo-stat {
    color: #888;
    font-variant-numeric: tabular-nums;
}

.repo-stat i {
    margin-right: 0.32em;
    font-size: 0.92em;
}

.software-project-copy p {
    text-align: left;
    margin: 0 0 0.45em;
    font-size: 14px;
    line-height: 1.5;
    color: #444;
}

.software-project-copy p:last-child {
    margin-bottom: 0;
}

body#post-index.page-research #main,
body#post-index.page-software #main {
    max-width: 1080px;
}

#post-index .pub {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 285px minmax(0, 1fr);
    gap: 16px 18px;
    align-items: start;
}

#post-index .pub:not(:has(.pub-figure)) {
    grid-template-columns: minmax(0, 1fr);
}

#post-index .pub + .pub {
    margin-top: 1.35em;
    padding-top: 1.35em;
    border-top: 1px solid #ececec;
}

#post-index article.hentry,
#post-index .entry-content,
#post-index .pub {
    overflow: visible;
}

#post-index .pub-figure {
    display: block;
    position: relative;
    z-index: 1;
    margin: 0;
    padding: 0;
    border: 0;
    background: none;
    cursor: zoom-in;
    border-bottom: none !important;
}

#post-index .pub-figure img {
    display: block;
    width: 285px;
    max-width: 100%;
    height: auto;
    /* Keep the hover target at its original size as the preview grows. */
    pointer-events: none;
    transform-origin: left center;
    box-shadow: 4px 4px 8px #888888;
    transition: transform 250ms cubic-bezier(0.2, 0, 0.2, 1);
}

#post-index .pub:hover,
#post-index .pub:has(.pub-figure.is-open) {
    z-index: 20;
}

#post-index .pub-figure.is-open img {
    /* Values are set on the image itself to keep the preview inside the viewport. */
    transform: translate3d(var(--preview-x, 0px), var(--preview-y, 0px), 0)
        scale(var(--preview-scale, 1)) perspective(900px) rotateY(8deg);
    box-shadow: 12px 14px 32px rgba(34, 34, 34, 0.3);
}

#post-index .pub-figure.is-open {
    cursor: zoom-out;
}

#post-index .pub-figure:focus-visible {
    outline: 2px solid #1a5fb4;
    outline-offset: 5px;
}

@media (prefers-reduced-motion: reduce) {
    #post-index .pub-figure img {
        transition: none;
    }

    #post-index .pub-figure.is-open img {
        transform: translate3d(var(--preview-x, 0px), var(--preview-y, 0px), 0)
            scale(var(--preview-scale, 1));
    }
}

#post-index .pub p {
    margin: 0;
    text-align: left;
    font-size: 15px;
    line-height: 1.45;
    color: #222;
}

#post-index .pub-title {
    margin-bottom: 0.2em;
    font-weight: 700;
}

#post-index .pub-authors {
    margin-bottom: 0.15em;
}

#post-index .pub-venue {
    margin-bottom: 0.35em;
    color: #444;
    font-style: italic;
}

#post-index .pub-links {
    font-size: 15px;
}

#post-index .entry-content .pub-links a {
    color: #1a5fb4;
    border-bottom: none !important;
}

#post-index .entry-content .pub-links a:hover,
#post-index .entry-content .pub-links a:focus {
    color: #0b3d91;
    border-bottom: none !important;
}

@media only screen and (max-width: 520px) {
    #post-index .pub {
        grid-template-columns: 1fr;
    }

    #post-index .pub-figure img {
        width: 100%;
        height: auto;
        max-height: none;
    }
}

.about-photo {
    float: right;
    width: 250px;
    height: 250px;
    margin: 0 0 20px 20px;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
    perspective: 900px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.about-photo-inner {
    display: block;
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 480ms cubic-bezier(0.77, 0, 0.175, 1);
}

.about-photo.is-flipped .about-photo-inner {
    transform: rotateY(180deg);
}

.about-photo img {
    position: absolute;
    inset: 0;
    width: 100% !important;
    height: 100% !important;
    max-width: none;
    margin: 0;
    object-fit: cover;
    border-radius: 8px;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.about-photo-back {
    transform: rotateY(180deg);
}

@media (hover: hover) and (pointer: fine) {
    .about-photo:hover .about-photo-inner {
        transform: rotateY(180deg);
    }
}

@media (prefers-reduced-motion: reduce) {
    .about-photo-inner {
        transition: none;
    }
}

.about-news {
    clear: both;
}

.latest-news {
    clear: both;
    list-style: none;
    margin: 0.2em 0 0;
    padding: 0 0.4rem 0 0;
    max-height: 17.5rem;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 0, 0, 0.28) transparent;
    scroll-padding-block: 0.35rem;
}

.latest-news.is-overflowing {
    -webkit-mask-image: linear-gradient(#000 0, #000 calc(100% - 1.35rem), transparent 100%);
    mask-image: linear-gradient(#000 0, #000 calc(100% - 1.35rem), transparent 100%);
}

.latest-news.is-scrolled {
    -webkit-mask-image: linear-gradient(transparent 0, #000 1rem, #000 100%);
    mask-image: linear-gradient(transparent 0, #000 1rem, #000 100%);
}

.latest-news.is-overflowing.is-scrolled {
    -webkit-mask-image: linear-gradient(transparent 0, #000 1rem, #000 calc(100% - 1.35rem), transparent 100%);
    mask-image: linear-gradient(transparent 0, #000 1rem, #000 calc(100% - 1.35rem), transparent 100%);
}

.latest-news::-webkit-scrollbar {
    width: 8px;
}

.latest-news::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.22);
    border-radius: 999px;
}

.latest-news:focus {
    outline: none;
}

.latest-news:focus-visible {
    outline: 2px solid rgba(0, 0, 0, 0.28);
    outline-offset: 3px;
}

.latest-news li {
    display: flex;
    align-items: baseline;
    gap: 0.75em;
    margin: 0;
    padding: 0.46em 0;
    border-bottom: 1px solid #ececec;
    font-size: 14px;
    line-height: 1.45;
    color: #444;
}

.latest-news li:first-child {
    padding-top: 0;
}

.latest-news li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.dl-menuwrapper .brand-icon,
.social-icons .brand-icon {
    display: inline-block;
    fill: currentColor;
    overflow: visible;
}

.dl-menuwrapper .brand-icon {
    width: 1.2857142857em;
    height: 1em;
    vertical-align: -0.15em;
}

.social-icons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    line-height: 1;
    border-bottom: none !important;
}

.social-icons .fa-2x {
    font-size: 30px;
    line-height: 1;
    width: 30px;
    height: 30px;
    text-align: center;
}

.social-icons .brand-icon {
    display: block;
    width: 28px;
    height: 28px;
    vertical-align: top;
}

.wechat-qr {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.wechat-qr[hidden] {
    display: none;
}

.wechat-qr-backdrop {
    position: absolute;
    inset: 0;
    margin: 0;
    padding: 0;
    border: 0;
    background: rgba(17, 17, 17, 0.62);
    cursor: pointer;
}

.wechat-qr-dialog {
    position: relative;
    margin: 0;
    width: min(420px, 100%);
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
    overflow: hidden;
}

.wechat-qr-dialog img {
    display: block;
    width: 100%;
    height: auto;
}

.wechat-qr-close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.94);
    color: #222;
    font-size: 22px;
    line-height: 32px;
    cursor: pointer;
}

.dl-menuwrapper li a.has-note {
    line-height: 1.25;
    padding-top: 10px;
    padding-bottom: 8px;
}

.dl-menuwrapper .copy-note {
    display: block;
    margin: 1px 0 0;
    color: rgba(255, 255, 255, 0.72);
    font-size: 10px;
    font-weight: 400;
    line-height: 1.3;
    letter-spacing: -0.02em;
    white-space: nowrap;
}

.news-date {
    flex: 0 0 5.15em;
    color: #888;
    font-weight: 500;
    font-variant-numeric: tabular-nums;
}

/* Single post: cover image, title over the image, one content card */
#post #main {
    max-width: none;
    padding-top: 0;
}

#post article.hentry {
    background: transparent;
    box-shadow: none;
    padding: 0;
    margin: 0;
    border-bottom: none;
}

#post .entry-header {
    height: 400px;
}

#post .entry-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 400px;
    min-height: 400px;
}

#post .entry-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-width: 100%;
    min-height: 400px;
}

#post.feature .header-title {
    z-index: 2;
}

/* Match the HPSTR post template: Lato, 16px, color #222, content line-height 1.625 */
body#post,
body#post h1,
body#post h2,
body#post h3,
body#post h4,
body#post h5,
body#post h6 {
    font-family: "Lato", Calibri, Arial, sans-serif;
}

body#post {
    color: #222;
    font-size: 16px;
    line-height: normal;
}

.lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 14px 0 0;
    font-family: "PingFang SC", "Noto Sans SC", "Hiragino Sans GB", "Microsoft YaHei", "Lato", sans-serif;
    font-size: 13px;
    letter-spacing: 0.04em;
    line-height: 1;
}

.lang-switch a {
    color: inherit;
    text-decoration: none;
    padding: 4px 8px;
    border: 1px solid transparent;
    border-radius: 2px;
}

#post.feature .lang-switch a {
    color: rgba(255, 255, 255, 0.72);
}

#post.feature .lang-switch a[aria-current="true"] {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.9);
}

#post.feature .lang-switch a:hover,
#post.feature .lang-switch a:focus {
    color: #fff;
}

.post-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 18px;
    margin-top: 15px;
}

.post-actions .btn {
    margin-top: 0;
}

.lang-switch-inline {
    margin: 0;
}

.lang-switch-inline a {
    color: #888;
}

.lang-switch-inline a[aria-current="true"] {
    color: #222;
    border-color: #222;
}

.lang-switch-inline a:hover,
.lang-switch-inline a:focus {
    color: #222;
}

body#post.lang-zh,
body#post.lang-zh h1,
body#post.lang-zh h2,
body#post.lang-zh h3,
body#post.lang-zh h4,
body#post.lang-zh h5,
body#post.lang-zh h6 {
    font-family: "PingFang SC", "Noto Sans SC", "Hiragino Sans GB", "Microsoft YaHei", "Lato", sans-serif;
}

body#post.lang-zh .entry-content {
    line-height: 1.85;
}